This document provides information about CEL's Multi Section Digital Axle Counter system (MSDAC-730P). Some key points:
- MSDAC-730P is a fail-safe system that uses axle detectors to detect train occupancy across multiple track sections in a station.
- It has a modular design that can support up to 40 detection points. Detection points use axle detectors to detect trains and send counts to a central evaluator.
- The central evaluator analyzes counts from detection points and determines track section occupancy using 2oo3 voting logic. It signals occupancy using relays.
- The system includes components like axle detectors, field units, a central evaluator, reset panel, and
This document provides information on the G.G.Tronics SSDAC axle counting system. It can be configured as a 2DP1S, 3DP1S, 3DP2S, or AS system. The 2DP1S configuration is described for a straight line or block section with start and end fed units communicating over a single pair of quad cable. Diagrams show the typical installation and positions of cards in the evaluator cabinet. The wheel detection principle based on phase detection is explained. Different configurations and their operation are also summarized.
This document provides a summary of the Manual for Tokenless Block Instrument Mark II with ‘Q’ relays. Some key points:
1. The manual aims to provide understanding of the principles and working of the tokenless block instrument, which uses 'Q' relays to provide more reliable service compared to previous models.
2. The instrument uses a three-stepped DC polar pulse system for codes to achieve immunity to contact faults. It eliminates tangible authorities and minimizes operating time while maintaining absolute block working.
3. The instrument has push buttons and LED indicators to allow manual operation and monitoring by station masters. It contains 35 relays to perform functions like code transmission, reception and timing delays.
A Power Point presentation presented at the MER Regional Model Railroad Convention at Hagerstown, MD on October 18, 2014 by Jay Beckham on the subject of Computer Model Railroad Interface 101 The Basics.
This document discusses improvements made to an EMC simulation software tool called PRESTO_MBMS to enable simulation of signal integrity issues in multiboard electronic systems. The tool was enhanced to allow simulation of multiple interconnected boards, model copper planes for simultaneous switching noise analysis, and integrate with CAD tools. A case study validated the tool by comparing simulations of signals on a CPU board and between boards to measurements.
Micro Controller 8051 of Speedo Meter using KEIL CodeSunil Kumar R
The document discusses interfacing a stepper motor to a microcontroller. It explains that a unipolar stepper motor has two phases that need to be energized sequentially to rotate the motor. The common wires of the stepper motor are connected to Vcc, while the end points of each phase receive control signals from the microcontroller outputs. The code sample shows initializing ports and peripherals, then entering a loop to read the sensor input and control a relay output to demonstrate using the sensor and relay with the microcontroller. It increments a counter variable each time the sensor is triggered and displays the count on the LCD.
This document provides information on the architecture and components of a GSM network. It discusses the key elements including the mobile station, base station subsystem, and network subsystem. The mobile station comprises the mobile equipment and SIM card. The base station subsystem consists of base transceiver stations and base station controllers. The network subsystem contains the main switching center, home and visitor location registers, and other databases that enable functions like registration, authentication, call routing, and handovers. Signaling protocols like MAP and SS7 are used to facilitate communication and mobility across the network.
This document describes a circuit that can be used as a speed checker for highways. The circuit uses two laser-light emitting diodes and light dependent resistors installed 100 meters apart on a highway. As a vehicle passes between the two sensors, timers measure the time taken and use this to calculate the vehicle's speed. If the calculated speed exceeds the legal speed limit, an alarm sounds to alert the driver. The circuit provides a digital display of the vehicle's speed and can be adjusted to check for limits of 40 or 60 kmph.
This document provides information on the G.G.Tronics SSDAC axle counting system. It can be configured as a 2DP1S, 3DP1S, 3DP2S, or AS system. The 2DP1S configuration is described for a straight line or block section with start and end fed units communicating over a single pair of quad cable. Diagrams show the typical installation and positions of cards in the evaluator cabinet. The wheel detection principle based on phase detection is explained. Different configurations and their operation are also summarized.
This document provides a summary of the Manual for Tokenless Block Instrument Mark II with ‘Q’ relays. Some key points:
1. The manual aims to provide understanding of the principles and working of the tokenless block instrument, which uses 'Q' relays to provide more reliable service compared to previous models.
2. The instrument uses a three-stepped DC polar pulse system for codes to achieve immunity to contact faults. It eliminates tangible authorities and minimizes operating time while maintaining absolute block working.
3. The instrument has push buttons and LED indicators to allow manual operation and monitoring by station masters. It contains 35 relays to perform functions like code transmission, reception and timing delays.
A Power Point presentation presented at the MER Regional Model Railroad Convention at Hagerstown, MD on October 18, 2014 by Jay Beckham on the subject of Computer Model Railroad Interface 101 The Basics.
This document discusses improvements made to an EMC simulation software tool called PRESTO_MBMS to enable simulation of signal integrity issues in multiboard electronic systems. The tool was enhanced to allow simulation of multiple interconnected boards, model copper planes for simultaneous switching noise analysis, and integrate with CAD tools. A case study validated the tool by comparing simulations of signals on a CPU board and between boards to measurements.
Micro Controller 8051 of Speedo Meter using KEIL CodeSunil Kumar R
The document discusses interfacing a stepper motor to a microcontroller. It explains that a unipolar stepper motor has two phases that need to be energized sequentially to rotate the motor. The common wires of the stepper motor are connected to Vcc, while the end points of each phase receive control signals from the microcontroller outputs. The code sample shows initializing ports and peripherals, then entering a loop to read the sensor input and control a relay output to demonstrate using the sensor and relay with the microcontroller. It increments a counter variable each time the sensor is triggered and displays the count on the LCD.
This document provides information on the architecture and components of a GSM network. It discusses the key elements including the mobile station, base station subsystem, and network subsystem. The mobile station comprises the mobile equipment and SIM card. The base station subsystem consists of base transceiver stations and base station controllers. The network subsystem contains the main switching center, home and visitor location registers, and other databases that enable functions like registration, authentication, call routing, and handovers. Signaling protocols like MAP and SS7 are used to facilitate communication and mobility across the network.
This document describes a circuit that can be used as a speed checker for highways. The circuit uses two laser-light emitting diodes and light dependent resistors installed 100 meters apart on a highway. As a vehicle passes between the two sensors, timers measure the time taken and use this to calculate the vehicle's speed. If the calculated speed exceeds the legal speed limit, an alarm sounds to alert the driver. The circuit provides a digital display of the vehicle's speed and can be adjusted to check for limits of 40 or 60 kmph.
The document provides details about the working principles of a SCADA (Supervisory Control and Data Acquisition) system used to monitor and control a 25KV electrified traction system. It can be divided into two broad categories - the Remote Control Centre equipment and the Remote Terminal Unit. The Remote Control Centre equipment monitors statuses, data, and controls field equipment. It consists of main/standby computers, communication processors, operator workstations, networking equipment, printers, modems, and displays. The Remote Terminal Unit acts as the interface between field devices and the Remote Control Centre, accepting inputs and receiving commands. It consists of processing, input/output, and communication modules along with transducers, power supply, and surge protection.
The document provides information on the SPAJ 110 C earth-fault relay:
1) The relay has two protection stages, a low-set and high-set neutral overcurrent stage, and can be used for primary or back-up earth-fault protection on power systems.
2) Key features include definite time and inverse time operation for the low-set stage, self-diagnostics, serial communication interface, and flexible configuration of protection and output functions.
3) The relay measures earth fault current via current transformers and provides trip and alarm outputs when fault thresholds are exceeded.
This document describes a three-phase brushless DC (BLDC) motor control system using a sensorless algorithm. The system is based on the Freescale Semiconductor MPC5606B microcontroller and can control a BLDC motor without position sensors. It uses a back-EMF sensing technique to estimate rotor position and implements six-step commutation. The document discusses BLDC motor theory, the sensorless control algorithm, hardware implementation using the MPC5606B controller board, and software implementation including initialization, speed control, zero-cross detection and current limiting.
The document describes the MetroCount 5805 RSU, a four input vehicle counter that uses inductive loops as sensors. It has features like dedicated loop oscillators, transient protection, and dataflash storage. Accessories are available like a breakout board and DIN rail mount. The RSU is set up using MetroCount Traffic Executive software which can assign lanes and directions. The software provides tools to monitor loops and detect any faults.
The document discusses railway signaling and train control systems. It begins with an introduction to various railway signaling devices like signals and switches. It then provides overviews of different train control systems used in Europe like TVM, KVB, TBL, ETCS. It discusses the signaling and control systems on the Eurostar high-speed train. The document then shifts to discussing software used in train control systems like SIBAS 32 and how it has evolved. It provides examples of SIBAS 32 usage. It concludes with discussions of formal methods for verifying railway interlocking systems and examples of industrial case studies applying formal methods.
This document discusses the design and construction of a 33/11 kV power line and substation. It provides details on the survey, layout, equipment, and sequence of construction. Key points include:
1. A survey is conducted to determine the optimal route for the power line, avoiding difficult terrain and areas of development.
2. Construction of the line involves digging poles, concreting, stringing conductors, and installing safety signs. The substation is built using equipment like transformers, circuit breakers, isolators, and busbars to transfer electricity between voltages.
3. Proper spacing must be maintained between the power line and other underground utilities or communication lines according to regulations.
This document provides an overview of Bruce Chubb's Computer/Model Railroad Interface (C/MRI) system. It discusses the basics of electronics relevant to C/MRI, including how circuits are grounded to turn them on rather than off. It then outlines several example applications of C/MRI like occupancy detection, signaling, turnout control, and centralized traffic control systems. The document recommends additional resources for learning more about signaling and C/MRI. It concludes by discussing how to assemble a basic C/MRI system with components like input/output cards and simplified wiring.
Speed checker on highway using 8051 micro controller and IR sensors. Here IR sensor sense the speed of the vehicle and and controller display the speed on Liquid Crystal Display,
This document outlines the components, working, and applications of track circuits used in rail signaling. Track circuits use batteries, track relays, and adjustable resistances to detect train occupancy through changes in electrical current flow. Insulated rail joints are also used to isolate adjacent track circuits. When unoccupied, current flows through the track relay keeping it energized, but when a train is present its wheels shunt most of the current, causing the relay to deactivate. Track circuits allow signals to display red only when a track segment ahead is occupied by a train.
The document discusses the Supervisory Control and Data Acquisition (SCADA) system used by Indian Railways to control electric traction supply. Some key points:
- SCADA allows centralized control of circuit breakers and switching stations along tracks from remote control centers. It also acquires field data.
- The system includes remote terminal units (RTUs) in the field, communication networks, and a central control room with workstations and servers.
- It monitors and controls over 17,000 km of electrified tracks through around 53 remote control centers.
- SCADA uses protocols like IEC-870-5 for communication between the control center and RTUs to ensure interoperability between vendors.
Solution for Industrial Printing & Textile Machines | Elmo Motion ControlElmo Motion Control
Our G-MAS uses a CANopen virtual encoder to improve master-slave performance on advanced industrial printing machines.
Find out how you can save money by using motion controllers virtual encoder.
A universal asynchronous receiver-transmitter is a computer hardware device for asynchronous serial communication in which the data format and transmission speeds are configurable.
Vehicle Speed detecter By PRAGYA AGARWALiamtheone5
The project mentioned here is “Speed checker and over speed detector for Highways”. This project is designed and developed by taking into consideration the problem mentioned above. We have used two sensors in this project. These sensors detect the vehicle speed. Condition is that, the two sensors should be installed at a distance of 100 meteres apart from one another.
Now-a-days we hear news about accidents on Highways very frequently. And in most of the cases main reason of accident is overspeed. Although all highways do have signboards indicating maximum speed limit for the sake of driver’s safety, but still people does not obey highway speed limit.
This document discusses the advantages of using a computer-based model railroad signaling system over traditional hard-wired logic circuits. Key advantages include low cost, easy expandability through additional interface cards, and great flexibility to modify the system through simple software changes rather than rewiring. Prototypical railroad signaling concepts can be easily modeled through computer programming.
This document provides installation and operation instructions for VLT 2800 series adjustable frequency drives (AFDs). It covers mechanical installation details, electrical installation guidelines and safety precautions. EMC correct installation practices are described, involving proper grounding of shielded motor and control cables. The manual also outlines programming and parameter details for configuring the drive for the application. Warnings are provided regarding the risk of high voltages even after power is removed due to charging of DC buses.
Design and Implementation of Payload Camera Control System for Unmanned Aeria...ijtsrd
The aim of this research is to design and implement PIC based radio frequency wireless communication system of two axes Pan Tilt payload camera unit for UAV. Camera is used as a payload and two servo motors are used to adjust the camera positioner in two axes to take the desired photo. User interface program is designed by C language on personal computer and serial communication RS232 protocol is used for data communication between personal computer and microcontroller. SONY digital camera is used to take the desired photographs and store recorded data to its memory. Ultra High Frequency band radio frequency wireless transmitter and receiver pairs are used for data communication link between the ground station and the receiver on the vehicle. And they are Amplitude Shift Keying ASK type IC and transmission frequency is 433.92MHZ. The Futaba S3003 servo motors mounted on the payload are driven by PWM pulse related to the transmitted data from the transmitter in order to get the desire payload camera orientation. The control system is based on microcontroller PIC16F877A. The microcontroller CCS C language is used for this control system. Saw Aung Nyein Oo | Naw Octavia "Design and Implementation of Payload (Camera) Control System for Unmanned Aerial Vehicle" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd26781.pdf Paper URL: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/26781/design-and-implementation-of-payload-camera-control-system-for-unmanned-aerial-vehicle/saw-aung-nyein-oo
Arm cortex ( lpc 2148 ) based motor speed control Uday Wankar
This document describes a project to control the speed of DC and AC motors using an ARM7 LPC2148 microcontroller. It uses pulse width modulation (PWM) signals from the microcontroller and motor driver circuits to vary the duty cycle and average voltage applied to the motors, allowing control of motor speed. The hardware used includes an LPC2148 board, LCD, control switches, L293D DC motor driver, optocoupler, TRIAC, and snubber circuit for the AC motor. The project successfully demonstrates controlling motor speed by varying the PWM duty cycle from 30% to 90%.
The document describes an optimized slot car race track project using a PIC microcontroller. The track was divided into sections for low, medium, and high speeds. Sensors were used to detect when the car entered each section and change the PWM duty cycle to adjust the car's speed. The PIC was programmed with an algorithm to control the car's speed based on sensor input as it raced around the track. The final circuit worked well, with the controlled car racing quickly through the different speed sections.
Arm Processor Based Speed Control Of BLDC MotorUday Wankar
The project is designed to control the speed of a DC motor using an ARM series processor. The speed of DC motor is directly proportional to the voltage applied across its terminals. Hence, if voltage across motor terminal is varied, then speed can also be varied. This project uses the above principle to control the speed of the motor by varying the duty cycle of the pulse applied to it (popularly known as PWM control). The project uses input button interfaced to the processor, which are used to control the speed of motor. PWM (Pulse Width Modulation) is generated at the output by the microcontroller as per the program. The program is written in Embedded C. The average voltage given or the average current flowing through the motor will change depending on the duty cycle (ON and OFF time of the pulses), so the speed of the motor will change. A motor driver IC is interfaced to the STM32 board for receiving PWM signals and delivering desired output for speed control of a small DC motor. Further the project can be enhanced by using power electronic devices such as IGBTs to achieve speed control higher capacity industrial motors.
Stuart Schrader has over 20 years of experience in resource development and management roles for Jewish organizations in Israel. He is currently working for The Jewish Agency for Israel in the areas of financial resource development, donor relations, and strengthening connections between teams in Israel and North America. Previously, he held director roles managing donor missions, activities in the Former Soviet Union region, and tree planting centers for the Jewish National Fund.
The client, an international scientific laboratory formed through acquisitions, needed to appoint six new board members including a Managing Director and HR Director. 6 Group was selected to identify candidates for these roles. They conducted market research and used their executive search methodology to identify the best candidates. For Managing Director, they selected someone with 25 years of experience in technical/scientific solutions and 14 years of board experience. For HR Director, they chose an MSc-qualified candidate with 18 years of industry experience, including at the client's largest competitor. Both candidates were onboarded and the client provided positive feedback, engaging 6 Group to search for the remaining board positions.
The document provides details about the working principles of a SCADA (Supervisory Control and Data Acquisition) system used to monitor and control a 25KV electrified traction system. It can be divided into two broad categories - the Remote Control Centre equipment and the Remote Terminal Unit. The Remote Control Centre equipment monitors statuses, data, and controls field equipment. It consists of main/standby computers, communication processors, operator workstations, networking equipment, printers, modems, and displays. The Remote Terminal Unit acts as the interface between field devices and the Remote Control Centre, accepting inputs and receiving commands. It consists of processing, input/output, and communication modules along with transducers, power supply, and surge protection.
The document provides information on the SPAJ 110 C earth-fault relay:
1) The relay has two protection stages, a low-set and high-set neutral overcurrent stage, and can be used for primary or back-up earth-fault protection on power systems.
2) Key features include definite time and inverse time operation for the low-set stage, self-diagnostics, serial communication interface, and flexible configuration of protection and output functions.
3) The relay measures earth fault current via current transformers and provides trip and alarm outputs when fault thresholds are exceeded.
This document describes a three-phase brushless DC (BLDC) motor control system using a sensorless algorithm. The system is based on the Freescale Semiconductor MPC5606B microcontroller and can control a BLDC motor without position sensors. It uses a back-EMF sensing technique to estimate rotor position and implements six-step commutation. The document discusses BLDC motor theory, the sensorless control algorithm, hardware implementation using the MPC5606B controller board, and software implementation including initialization, speed control, zero-cross detection and current limiting.
The document describes the MetroCount 5805 RSU, a four input vehicle counter that uses inductive loops as sensors. It has features like dedicated loop oscillators, transient protection, and dataflash storage. Accessories are available like a breakout board and DIN rail mount. The RSU is set up using MetroCount Traffic Executive software which can assign lanes and directions. The software provides tools to monitor loops and detect any faults.
The document discusses railway signaling and train control systems. It begins with an introduction to various railway signaling devices like signals and switches. It then provides overviews of different train control systems used in Europe like TVM, KVB, TBL, ETCS. It discusses the signaling and control systems on the Eurostar high-speed train. The document then shifts to discussing software used in train control systems like SIBAS 32 and how it has evolved. It provides examples of SIBAS 32 usage. It concludes with discussions of formal methods for verifying railway interlocking systems and examples of industrial case studies applying formal methods.
This document discusses the design and construction of a 33/11 kV power line and substation. It provides details on the survey, layout, equipment, and sequence of construction. Key points include:
1. A survey is conducted to determine the optimal route for the power line, avoiding difficult terrain and areas of development.
2. Construction of the line involves digging poles, concreting, stringing conductors, and installing safety signs. The substation is built using equipment like transformers, circuit breakers, isolators, and busbars to transfer electricity between voltages.
3. Proper spacing must be maintained between the power line and other underground utilities or communication lines according to regulations.
This document provides an overview of Bruce Chubb's Computer/Model Railroad Interface (C/MRI) system. It discusses the basics of electronics relevant to C/MRI, including how circuits are grounded to turn them on rather than off. It then outlines several example applications of C/MRI like occupancy detection, signaling, turnout control, and centralized traffic control systems. The document recommends additional resources for learning more about signaling and C/MRI. It concludes by discussing how to assemble a basic C/MRI system with components like input/output cards and simplified wiring.
Speed checker on highway using 8051 micro controller and IR sensors. Here IR sensor sense the speed of the vehicle and and controller display the speed on Liquid Crystal Display,
This document outlines the components, working, and applications of track circuits used in rail signaling. Track circuits use batteries, track relays, and adjustable resistances to detect train occupancy through changes in electrical current flow. Insulated rail joints are also used to isolate adjacent track circuits. When unoccupied, current flows through the track relay keeping it energized, but when a train is present its wheels shunt most of the current, causing the relay to deactivate. Track circuits allow signals to display red only when a track segment ahead is occupied by a train.
The document discusses the Supervisory Control and Data Acquisition (SCADA) system used by Indian Railways to control electric traction supply. Some key points:
- SCADA allows centralized control of circuit breakers and switching stations along tracks from remote control centers. It also acquires field data.
- The system includes remote terminal units (RTUs) in the field, communication networks, and a central control room with workstations and servers.
- It monitors and controls over 17,000 km of electrified tracks through around 53 remote control centers.
- SCADA uses protocols like IEC-870-5 for communication between the control center and RTUs to ensure interoperability between vendors.
Solution for Industrial Printing & Textile Machines | Elmo Motion ControlElmo Motion Control
Our G-MAS uses a CANopen virtual encoder to improve master-slave performance on advanced industrial printing machines.
Find out how you can save money by using motion controllers virtual encoder.
A universal asynchronous receiver-transmitter is a computer hardware device for asynchronous serial communication in which the data format and transmission speeds are configurable.
Vehicle Speed detecter By PRAGYA AGARWALiamtheone5
The project mentioned here is “Speed checker and over speed detector for Highways”. This project is designed and developed by taking into consideration the problem mentioned above. We have used two sensors in this project. These sensors detect the vehicle speed. Condition is that, the two sensors should be installed at a distance of 100 meteres apart from one another.
Now-a-days we hear news about accidents on Highways very frequently. And in most of the cases main reason of accident is overspeed. Although all highways do have signboards indicating maximum speed limit for the sake of driver’s safety, but still people does not obey highway speed limit.
This document discusses the advantages of using a computer-based model railroad signaling system over traditional hard-wired logic circuits. Key advantages include low cost, easy expandability through additional interface cards, and great flexibility to modify the system through simple software changes rather than rewiring. Prototypical railroad signaling concepts can be easily modeled through computer programming.
This document provides installation and operation instructions for VLT 2800 series adjustable frequency drives (AFDs). It covers mechanical installation details, electrical installation guidelines and safety precautions. EMC correct installation practices are described, involving proper grounding of shielded motor and control cables. The manual also outlines programming and parameter details for configuring the drive for the application. Warnings are provided regarding the risk of high voltages even after power is removed due to charging of DC buses.
Design and Implementation of Payload Camera Control System for Unmanned Aeria...ijtsrd
The aim of this research is to design and implement PIC based radio frequency wireless communication system of two axes Pan Tilt payload camera unit for UAV. Camera is used as a payload and two servo motors are used to adjust the camera positioner in two axes to take the desired photo. User interface program is designed by C language on personal computer and serial communication RS232 protocol is used for data communication between personal computer and microcontroller. SONY digital camera is used to take the desired photographs and store recorded data to its memory. Ultra High Frequency band radio frequency wireless transmitter and receiver pairs are used for data communication link between the ground station and the receiver on the vehicle. And they are Amplitude Shift Keying ASK type IC and transmission frequency is 433.92MHZ. The Futaba S3003 servo motors mounted on the payload are driven by PWM pulse related to the transmitted data from the transmitter in order to get the desire payload camera orientation. The control system is based on microcontroller PIC16F877A. The microcontroller CCS C language is used for this control system. Saw Aung Nyein Oo | Naw Octavia "Design and Implementation of Payload (Camera) Control System for Unmanned Aerial Vehicle" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-5 , August 2019, URL: https://www.ijtsrd.com/papers/ijtsrd26781.pdf Paper URL: https://www.ijtsrd.com/engineering/electronics-and-communication-engineering/26781/design-and-implementation-of-payload-camera-control-system-for-unmanned-aerial-vehicle/saw-aung-nyein-oo
Arm cortex ( lpc 2148 ) based motor speed control Uday Wankar
This document describes a project to control the speed of DC and AC motors using an ARM7 LPC2148 microcontroller. It uses pulse width modulation (PWM) signals from the microcontroller and motor driver circuits to vary the duty cycle and average voltage applied to the motors, allowing control of motor speed. The hardware used includes an LPC2148 board, LCD, control switches, L293D DC motor driver, optocoupler, TRIAC, and snubber circuit for the AC motor. The project successfully demonstrates controlling motor speed by varying the PWM duty cycle from 30% to 90%.
The document describes an optimized slot car race track project using a PIC microcontroller. The track was divided into sections for low, medium, and high speeds. Sensors were used to detect when the car entered each section and change the PWM duty cycle to adjust the car's speed. The PIC was programmed with an algorithm to control the car's speed based on sensor input as it raced around the track. The final circuit worked well, with the controlled car racing quickly through the different speed sections.
Arm Processor Based Speed Control Of BLDC MotorUday Wankar
The project is designed to control the speed of a DC motor using an ARM series processor. The speed of DC motor is directly proportional to the voltage applied across its terminals. Hence, if voltage across motor terminal is varied, then speed can also be varied. This project uses the above principle to control the speed of the motor by varying the duty cycle of the pulse applied to it (popularly known as PWM control). The project uses input button interfaced to the processor, which are used to control the speed of motor. PWM (Pulse Width Modulation) is generated at the output by the microcontroller as per the program. The program is written in Embedded C. The average voltage given or the average current flowing through the motor will change depending on the duty cycle (ON and OFF time of the pulses), so the speed of the motor will change. A motor driver IC is interfaced to the STM32 board for receiving PWM signals and delivering desired output for speed control of a small DC motor. Further the project can be enhanced by using power electronic devices such as IGBTs to achieve speed control higher capacity industrial motors.
Stuart Schrader has over 20 years of experience in resource development and management roles for Jewish organizations in Israel. He is currently working for The Jewish Agency for Israel in the areas of financial resource development, donor relations, and strengthening connections between teams in Israel and North America. Previously, he held director roles managing donor missions, activities in the Former Soviet Union region, and tree planting centers for the Jewish National Fund.
The client, an international scientific laboratory formed through acquisitions, needed to appoint six new board members including a Managing Director and HR Director. 6 Group was selected to identify candidates for these roles. They conducted market research and used their executive search methodology to identify the best candidates. For Managing Director, they selected someone with 25 years of experience in technical/scientific solutions and 14 years of board experience. For HR Director, they chose an MSc-qualified candidate with 18 years of industry experience, including at the client's largest competitor. Both candidates were onboarded and the client provided positive feedback, engaging 6 Group to search for the remaining board positions.
Matthew Harrington Consulting provides workplace relocation and accommodation services. They have extensive experience managing large, complex relocation projects for government and corporate clients. Their services include planning, coordinating, and managing all aspects of relocations from a single point of contact. They aim to ensure smooth business continuity and minimize risks for clients during relocations. Prior clients have praised Matthew Harrington Consulting for their professionalism and for enabling relocations with minimal business disruption.
Piecing Together the LNG Market - Case StudyJennifer Bush
6 Group was commissioned by an oil and gas client to provide a market intelligence report on how major LNG companies structure their exploration and production businesses. Through extensive research, 6 Group mapped out the HR requirements and talent needs for various LNG projects globally. They produced organization charts and profiles of executives needed to establish the client's new LNG business. 6 Group then helped the client secure leadership positions, filling 5 of 8 roles within 3 months, including VP and director roles for a $50 billion East Africa project. The client aims to become a leading LNG operator within 5 years.
Ethiopia is one of the top coffee producing countries in the world. It has various coffee growing regions that produce different quality coffees through both natural and washed processes. The two main commercialization channels for Ethiopian coffee are through the Ethiopia Commodity Exchange, where local and international buyers can purchase coffee, and through cooperative unions and large farms that sell directly. While Ethiopia has favorable conditions for coffee production and export, challenges include infrastructure issues and access to local credit.
Neil Johnston Elder is applying for employment as a Nightshift Toolpusher. He has over 5 years of experience in this role and previously worked as a Driller for 2 years and entered the offshore industry in 1995 as a maintenance roustabout. He offers reliability, good communication skills, a commitment to safety, and a willingness to expand his duties. He has proven himself a dedicated, enthusiastic, and dynamic leader with excellent management skills.
B L Subbaraya is an engineer born in 1952 in Karnataka, India. He has worked in research and leadership roles at various electronics companies in India. He has designed and developed many electronics systems, including high current rectifiers, speed transmitters, uninterruptible power supplies, and cathodic protection systems. He has also consulted on the manufacture, re-engineering, and indigenization of power electronics equipment to meet defense and industry standards.
This document provides a summary of Marie Hedrick's marketing and public relations experience over 20 years including developing marketing strategies, executing events, graphic design, fundraising, writing, and photography. She has experience consulting with businesses and non-profits. Some highlights of her work include coordinating numerous events, developing fundraising campaigns for land trusts, and launching and managing a successful summer concert series in Winter Park, Colorado.
El documento define varios términos relacionados con la publicación de contenido en línea. Un blog es una página web donde se pueden publicar diferentes tipos de contenido como imágenes, videos y etiquetas. Las etiquetas o hashtags se usan para categorizar el contenido publicado agregando palabras clave precedidas por el símbolo #. Las categorías también clasifican el contenido publicado en palabras clave como educativo o social. YouTube permite subir videos en diferentes categorías para que otros usuarios los vean y, si se obtienen muchos suscriptores, se puede monet
Quadcopters are the rotorcraft which have become the catch of the eye in the UAVs, both for electronic hobbyists as well as various application based real time solutions.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
IRJET- Railway Track Crack and Obstacle Detection using ArduinoIRJET Journal
This document describes a proposed system to detect cracks and obstacles on railway tracks using sensors. The system uses an Arduino board along with ultrasonic sensors to detect cracks and IR sensors to detect obstacles. When a crack or obstacle is detected, the system uses a GSM module to send an SMS with the location from the GPS module to alert authorities. The system is presented as a low-cost and effective alternative to existing visual inspection and other techniques to improve railway safety.
IRJET- Railway Track Crack and Obstacle Detection using ArduinoIRJET Journal
This document describes a system to detect cracks and obstacles on railway tracks using sensors. The system uses an Arduino board along with an ultrasonic sensor to detect cracks, IR sensors to detect obstacles, and a GSM module and GPS module to send an SMS with the location if a crack or obstacle is detected. It aims to improve railway safety by automatically and quickly identifying track issues to prevent accidents. The system is designed to be low-cost and able to detect even small cracks not visible to the naked eye. If a crack or obstacle is found, an SMS is sent to the control room with the exact latitude and longitude from the GPS module.
A low cost short range wireless embedded system for multiple parameter controleSAT Journals
Abstract It is well established fact that the process atomization offers the advantages like high accuracy, power saving, manpower saving, reduction in wastage, high & efficient production volumes. In the modern industries precise monitoring, & controlling of temperatures & fluid level of various chemicals in storage tanks at various places is an essential requirement. This paper describes the development of Wireless Embedded System by using Atmel’s 89C51 microcontroller for monitoring & control of process parameters from remote site .The system utilizes ASK transmitter & receiver for transmission and reception of reference values i.e., temperature and fluid levels from transmitter to receiver. Interaction with transmitter is done through matrix keypad. A TRIAC AC power controller circuit is used in the receiver which controls the flow of power to the heater. The fluid level is maintained by a water feed pump .User friendly Software is developed using 8051’s Assembly language to control the transmitter and receiver units. Keywords: ASK/RF transceiver, Temperature sensor, Triac, Fluid level sensor and Microcontroller etc…
A low cost short range wireless embedded system for multiple parameter controleSAT Publishing House
1. The document describes a low-cost wireless embedded system for monitoring and controlling multiple parameters like temperature and fluid level from a remote site.
2. The system uses a microcontroller, RF transmitter and receiver, sensors and actuators to monitor and control the temperature of a heater and fluid level in a tank.
3. Experimental results show the system can accurately control the temperature and fluid level based on setpoint values by adjusting the power to the heater and a pump motor.
Remote Monitoring System for Solar InvertersIRJET Journal
This document describes a remote monitoring system for solar inverters that allows their parameters to be monitored continuously from anywhere in the world. The system uses a microcontroller to monitor the inverters and upload the real-time parameter data to a server via GSM. This diminishes the need for on-site technicians and allows lights-out operation at remote locations. The monitoring system components include a dsPIC33EP32MC202 microcontroller, EEPROM for data storage, real-time clock, LCD display interfaced via SPI, and an SD card for additional data storage.
Research Inventy : International Journal of Engineering and Scienceresearchinventy
The document describes a technique for automated data acquisition from an X-band microwave bench. A personal computer uses a stepper motor to move a plunger in a liquid cell, and an analog-to-digital converter card interfaces with the microwave bench detector to measure the reflected power at different plunger positions. Software controls the stepper motor and records the measurements, allowing accurate determination of dielectric properties without manual operation. Table 1 shows example data collected, listing the plunger position in mm and corresponding detected microwave power for an air-filled liquid cell. This automated process provides more precise measurements than the traditional manual method.
Simulation Design of DC Motor Control System Based on MC9S12D64 MCUIJERA Editor
This document describes a simulation of a DC motor control system using an MC9S12D64 microcontroller unit (MCU). The system samples an analog input voltage, uses pulse width modulation to control motor speed based on the voltage, and provides alarms and display. It was designed to simulate industry motors. The hardware and software were tested experimentally and proved reliable for controlling the DC motor and simulating different running conditions.
This document provides documentation and instructions for using an Arduino library for the ADS1256 24-bit analog-to-digital converter. It describes the converter's features like 8 input channels that can be used in single-ended or differential mode, and programmable gain and sampling rates. It also details the converter's 11 registers for configuration, and provides code examples for reading and writing register values to control the converter.
This document provides an overview and specifications for the Q46C2 2-electrode conductivity monitor/analyzer. It includes:
1. General features such as power options, outputs, display, and sensor compatibility.
2. Specifications for measurement ranges, outputs, relays, enclosure, and performance.
3. Instructions for mounting the analyzer including wall/pipe mounting, panel mounting, and sensor mechanicals.
4. Details on electrical installation including power, relay, output, and sensor connections.
5. Description of the user interface and software including menus, calibration, PID control, and diagnostics.
6. Information on system configuration, maintenance, calibration procedures, spare parts,
IRJET- Solar Powered Transmission Line Inspection RobotIRJET Journal
1. The document describes a solar-powered robot designed to inspect overhead transmission lines.
2. The robot is equipped with sensors to measure the current, voltage, temperature and distance to detect any faults or defects in the transmission lines.
3. It transmits the sensor readings and video/images of the transmission lines to a mobile device using IoT technology for remote monitoring and inspection of the lines.
American Fibertek MTX-91685C-SL User ManualJMAC Supply
Buy the American Fibertek MTX-91685C-SL at JMAC Supply.
https://www.jmac.com/American_Fibertek_MTX_91685C_SL_p/american-fibertek-mtx-91685csl.htm?=slideshare
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
This document describes a MEMS-controlled accident reporting system that uses an accelerometer and GPS to detect vehicle accidents. When an accident occurs, the accelerometer detects vibrations and sends a signal to an ARM controller. The microcontroller then enables an airbag and sends a message with the accident location from the GPS to emergency contacts via GSM. The system aims to reduce response times and save lives by quickly notifying emergency services and relatives of accidents.
This document describes the design of a remote control information display system for a metro train. It includes chapters on the circuit details, components, breadboard implementation, working, and more. The key aspects are:
1. It uses an IR LED and photodiode pair to track the train's movement and measure distance traveled.
2. An RF transmitter and receiver enable wireless communication between the train and station.
3. A microcontroller controls the various devices and displays information like stations and distance on an LCD screen. It also controls voice chips to announce stations.
This document describes the design of a remote control train information display system. It contains 12 chapters that outline the system components, circuit details, working principles, and implementation. The key components are an IR sensor to detect distance traveled, an RF transmitter and receiver for remote control, a microcontroller to process inputs and control outputs, and a voice chip for station announcements. It provides distance information to passengers and announces upcoming and passed stations remotely.
Development of a Multichannel Analyzer for Radioactive Isotopes Detectionijtsrd
This report is a summary of work carried out at Defence Laboratory DRDO Jodhpur during internship as a part of Masters of Computer Application. The report is the brief description of study about the Multichannel Analyzer and crystallization of work. The work helps in developing insight on a state of the robust technology MCA to identify radioisotopes during the nuclear emergency. Study of Multichannel Analyzer is in the way that it would be able to store the spectrum that is to be displayed. Ferventness of MCA spectrum is classified further in two parts respectively which are Energy spectrum that is Calibrated and Pulse Height spectrum which is non calibrated. A new approach to problem solving is in the direction of feasible survey, and in addition to this requires a remarkably low down time by measuring the spectrum pattern on site in nuclear emergency. The solution is the so called near field spectrum pattern measurement method, which requires mathematical parameters and algorithms. Hemant Singh Rajpurohit | Prof. Bhuvana J "Development of a Multichannel Analyzer for Radioactive Isotopes Detection" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-3 , April 2022, URL: https://www.ijtsrd.com/papers/ijtsrd49790.pdf Paper URL: https://www.ijtsrd.com/computer-science/computer-network/49790/development-of-a-multichannel-analyzer-for-radioactive-isotopes-detection/hemant-singh-rajpurohit
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This document describes a tensile strength testing machine that was designed to test the strength of textile materials. It discusses the various components of the machine, including the load cell, rotary encoder, microcontroller, analog-to-digital converter (ADC), and other electronic components. The machine is able to automatically record the load and elongation of a specimen as it is placed under increasing tensile stress. The load, elongation, and other data are sent to a computer for analysis. The design of the data acquisition system and electronic components is explained, and the machine is able to accurately measure and record the load-elongation curve of textile specimens during strength testing.
IRJET- Data Acquisition using Tensile Strength Testing Machine
gyandeep Aniversary edition
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Gyandeep - Anniversary Issue ‘16
Contents
1. Insight into TPWS Interoperability Trials
Shri A.V.Sivaprasad, CSTE/SR & Shri V N M Rao, Dy.CSTE/Proj/SR ................................................. 03
2. Complexity of Non-Interlocked Simplified
Shri Manmohan Garhwal, CSTE/NCR ............................................................................................... 14
3. Tele Presence
Shri. M.Elavarasan, CSTE/SWR ........................................................................................................ 19
4. Burning/Damages to S&T Equipment due to local power supply
Shri R K Jain, CSE/WCR ................................................................................................................... 23
5. Commissioning of Route Relay Interlocking at Vijayawada, SCR
Shri Ch Mohan, CSTE/Con/SCR ........................................................................................................ 31
6. Earthing for Lightining Protection
Shri.P.Venkata Ramana, Senior Professor Signalling/IRISET ............................................................. 35
7. Multiple Access Communication System at Accident Site in Mid-Section
Shri B Gopi Singh, CCE/SCR ............................................................................................................. 42
8. IB on OFC with BLOCK, MSDAC AND OCs
Shri B K Agrawal, GGM (S&T), RVNL/SC ......................................................................................... 48
9. New Dimension for Panels modernisation
Shri Lokesh Vishnoi, GM S&T/RVNL/Raipur ...................................................................................... 53
10. Implementation of Digital Classroom at IRISET
Shri C K Prasad, GM/Railtel ............................................................................................................. 57
11. Different types of Fuses used in Siemens PI/RRI Circuits
Shri M Koteswara Rao, Sr.DSTE/SC Division/SCR............................................................................. 62
12. E-Tendering of Works Contracts
Shri A V Mallikarjuna, DY.CE/Con/Genl - I/SCR ............................................................................... 69
13. In Sleeper Point Machine
Shri G.Pawan Kumar, Director Signal/RDSO ..................................................................................... 73
14. Safety Slogans for Signal Department
Shri.SHari, Sr.DSO/GTL/SCR ........................................................................................................... 76
15. Multi Section DigitalAxle Counter
Shri Sandeep Aggarwal, CM(R&D), CEL........................................................................................... 78
16. Hot Standby Wireless link for Railway Signalling UFSBI, Axle Counter & Secure Voice
Shri I N Mukherjee, Deltron............................................................................................................... 88
S.No. Title & Author Page
11. Page 78
MSDAC-730P is a multi section digital axle counter system that is designed using
the principles of fail-safety and has a two-out-of-three fail safe architecture. It is
microcontroller based and has redundant power supply arrangement. Its modular nature
allows you to planyour upgradeandextensions without anyproblem. Itis fieldextendable
with 8detections points ina moduleset. It provides aneasytouse GUI forconfiguration.
It is used for detecting railway track occupancy primarily in a station. It is used for
track circuiting a whole station. MSDAC-730P is modular in design and can be used
with40detectionpoints per chassis. Eachdetectionpoint has atracksensor that identifies
a track section boundary. A track section can be defined with 2/3/4 detection points.
The system consists of the following components:
1. Axle Detectors
2. Electronics Field Units
3. Central Evaluator
4. SM's Reset Panel
5. Monitoring Unit
The Central Evaluator of MSDAC-730P has been designed to be modular. The systemcan be configured for
up to 40 field units in steps of 8. Therefore, the system can scale up or scale down according to the requirement
at station.
PRINCIPLE OF WORKING
TheAxle Detectors are installed at the limits of a tracksection along with their electronic field units on track
side. The number of detection points is decided basedonthe track circuiting requirement of a station. The field
units are connected with Central Evaluator by means of ½ Quad cable. The Central Evaluator is installed at the
station and is powered by 24V DC local supply. The field units are also powered using 24V DC that is derived
from the power source that powers the central evaluator. The Axle Detectors operates on high frequency (21
KHz &23 KHz)electromagnetic wheel detection technology. Whena train wheel passes over theAxledetectors,
the change in electromagnetic field is sensed. This change triggers a complex algorithm that decides if a wheel
has passed over the axle detector as well as the direction of movement. The Axle detectors and the electronics
associated with it is working on the principle of Phase Modulation.
The wheel-detection events are converted into pulses and these pulses are counted by the field units. These
counts are stored as well here. The stored counts as well as the health of the track sensor are monitored andare
continuously transmitted by the field unit by means of telegram packets to Central Evaluator on the ½ Quad
cable that also powers the field unit. The central Evaluator receives the count from each of the field unit it is
connected to and it then takes the decision of the track section is occupied or not. This decision is taken based
on 2003 voting logic in a fail safe manner. MSDAC signals the occupancy of the track section by means of an
electro-mechanical relay called VR relay. The contacts of VR relay or its repeater are used in the signaling
circuits of signalling system at the station.
MSDAC has a mechanism to reset a particular track section to recover froman error or a failure condition.
This is done through the SM's reset panel. The section is to be physically verified by the SM to be unoccupied
and then the reset command is to be given from the reset panel. This command is received by the central
evaluator and it then sends the command to the respective field units to zero their counts. CEL is already
working on VDU leased SM’s reset panel and this is expected to be launched in FY 2017-18.
MULTI SECTION DIGITAL AXLE COUNTER
(MODEL MSDAC-730)
Shri Sandeep Aggarwal,CM (R&D), CEL
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Gyandeep - Anniversary Issue ‘16
DESIGNFEATURES
i Central Evaluator designed on 2 out of 3 Architecture
ii Designed as per CENELEC, SIL- 4 (European standards).
iii Suitable for connecting maximum of 40 detections, 40 track sections
iv Power & Data to field units on same quad pair.
v Configuration card for Onsite Configuration
vi Vital Relay Drive output for Q type 24V, 1000 ohm.
vii Easy maintainability through modular design.
viiiInbuilt Event Logger card for event logging and report generation.
ix Field upgradable form SDP to 40 DP in steps of 8.
x Dual detection for redundancy possible with same chassis or different chassis.
xi Reduced inventory for Railways as many components of SSDAC are common.
SALIENT FEATURES
i Modular Design.
ii Easy to upgrade in field.
iii User selectable (Hard/Preparatory) resetting.
iv Real time and Remote (Optional) monitoring
v No requirement of power cable to send power to field units. Power and data multiplexed on same line.
vi Inbuilt Event Logger card for offline analysis.
vii Q type 24V, 1000 Ohm 6F/6B vital relay output.
viiiNo need for trolley protection track circuit.
ix Range of detection points is 4 Km for centralized power supply and 20Kms for local power supply.
x Can be installed on 19” CT Rack/Standard 42U Rack.
CONFIGURATION OFMSDAC
1. The chassis card panel of a few configuration of detection points is shown in this section.
a. Up to 8 Detection Points (DP)
This system is capable of interacting with 8 detection points and can generates max of 8 track sections
output.
The front side of 8DP central evaluator consists of following modules
Figure 1: MSDAC-730/8DP
b. 9-16 Detection Points
This system is capable of interacting with 16 detection points and can generates max of 16 track sections
output.
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Gyandeep - Anniversary Issue ‘16
Figure 2: MSDAC-730/16DP
c. 17-24 Detection Point
This system is capable of interacting with 24 detection points and can generates max of 24 track sections
output.
Figure 3: MSDAC-730/24DP
d. 23-32 detection points
This system is capable of interacting with 24 detection points and can generates max of 32 track sections
output.
Figure 4: MSDAC-730/32DP
e. 33-40 Detection Points
This system is capable of interacting with 40 detection points and can generates max of 40 track sections
output.
Figure 5: MSDAC-730/40DP
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2. BACKPANEL
The back panel of central evaluator is same for all the models of MSDAC andis prewired tocater to 40DP
as a standard factory arrangement.
3. The MSDAC can be configured through the Configuration Card as per yard layout in different track
sections as under:
Two detection points Single section: In straight line.
Three/Four detection points Single section: In point zone.
Multiple detection points single section: In ladder.
Consecutive single section in a straight line: Auto block.
Intermediate block signaling
SYSTEM DESCRIPTION
The MSDAC Systemconsists of several components. Some of these components are located in the field and
some are at the station, the description of these Components is as follows:
a. Central Evaluator (CE):
2oo3 Hardware Architecture based Evaluator Module Card (EM08).
Relay Driver Card for generating 8 vital outputs.
Each set of one EM08 Card & Relay Driver Card can be connected to 8 inputs and generates 8 vital
outputs.
5 sets of these modules can be housed in a single 19” Rack
Inbuilt event logger for event logging & remote monitoring.
Dual DC-DC converter for redundancy.
Configuration Card for onsite configuration of Yard Layout.
Operates on 24VDC supply.
Figure 6: Central Evaluator
b. DigitalAxleCounter Field Unit (DACFU):
Each Unit is configured as a detection point.
Detects wheels & stores count based on 2oo2 logic.
Transmits wheel count & health information to CE.
2oo2 Hardware Architecture.
Each field unit is connected t o evaluator on half quad cable in star configuration.
Figure 7: Field Unit
c. Pre-wired Relay Assembly Unit:
It is pre-wired relay assembly unit for connecting relays with central evaluator.
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Mountable on19” CT Rack.
Each unit can house 4 Nos of Q-type 24V, 1000 Ohm Relays.
Can be upgraded on site as per requirement.
Figure 8: Pre-Wire Relay Assembly
d. Axle Detector:
Operates on 21KHz and 23KHz frequencies.
Works on phase modulation principle.
Web mounted type.
Unaffected by 4/6 spoke push trolley.
Figure 9: Axle Detector
e. Reset Panel:
Section wise indication of Section Clear, Section Occupied, Preparatory Reset & Line Verification.
SM’s control key.
Section wise non resettable counter for recording reset.
Can be customized as per yard layout.
Figure 10: SM’s Reset Panel
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Gyandeep - Anniversary Issue ‘16
f. Centralized DC to DC Converter:
Capable of generating 8/16 channels of 96VDC, required for field units in case of centralized power
supply is used.
Overload/short circuit protection for individual channels.
Works on 24VDC input supply.
Figure 11: DC - DC Convertor
g. Configuration Terminal:
User Friendly configuration tool for configuring system in factory or at site.
Configuration using Windows based GUI tool.
Can be used with any commercial desktop computer using serial port.
ORDERINGINFORMATION
Each MSDAC consist of the following subsystem. Different Modules can be picked up withvarious options
for different configurations.
DESCRIPTION
NOOF CARDS FOR UPTO
MSDAC-730/8DP MSDAC-730/24DP MSDAC-730/40DP
8 DP 16 DP 24 DP 32 DP 40 DP
CENTRAL EVALUATOR RACK 19” 20U 19” 30U 19” 36U
CENTRAL EVALUATOR
DC-DC CONVERTER 2 NOS
EM08 CARDS 1 NO 2 NOS 3 NOS 4 NOS 5 NOS
RELAY DRIVER CARDS 1 NO 2 NOS 3 NOS 4 NOS 5 NOS
CONFIGURATION CARDS 1 NO
EVENTLOGGER 1 NO
MOTHERBOARD 1 NO WIRED FOR 40 DPS
DIGITAL AXLE COUNTER FIELD UNIT 8 16 24 32 40
SCC CARD 21KHZ
SCC CARD 23KHZ
MLB CARD
MODEM CARD
HIGH VOLTAGEDC TODC CONVERTER CARD
AXLE DETECTORS
TX 21 & TX 23 8 16 24 32 40
RX 21& RX23 8 16 24 32 40
POWER & DATA COUPLING UNIT 16 32 48 64 80
HIGH VOLTAGE DC TO DC CONVERTER 1 1 2 2 3
SM’S RESET PANEL
CUSTOMISED YARD LAYOUT
ONE
VALUE ADDITION separtely
TOOLKIT FOR FIELD UNIT 1
ADDITIONAL SUBSYSTEMS 1
PORTABLE DATA ANALYSER 1
CONFIGURATION TERMINAL 1
MONITORING UNIT 1
POWER SUPPLY
BATTERYBANK 24V, ASPER RAILWAY SITE REQUIREMENTS
BATTERYCHARGER 24V, 30A( AXLE COUNTER TYPE ONLY) OR 50A
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POWER CONSUMPTION:
80W TO 125W FOR 40 DPMODEL
NOTE: - It is recommended NOT to share the battery & battery charger for 2Evaluators at same station to
hamper the system availability.
STATUS
MSDAC-730 has been approved by RDSO on educational on educational orders of 50 sets.
The MSDAC systemof CELhas alreadyworkedsuccessfully70tracksection for a total of 709TS months.
APPLICATION
1. TRACK CIRCUITING OF STATION YARD
MSDAC can be used for track circuiting of station yard inlieu of DC Track circuit (where DC Trackcircuit
is not present) or in dual redundancy with DC Track circuit (where DC Track circuit is already present). It can
also be used in station yards which are prone to water-logging or flood like conditions.
CONFIGURATION:
Windows Based GUI tool alongwith ConfigurationTerminal can be used to configure any yardwithoptions
for hard resetting, piloting is required, LV Box is required or not with report generation. The configuration
report will be used for validation of configuration data and record purposes at the later stages.
MSDAC-MODEL DACF-730-16DP
12DP – 8 Track section MSDAC is sufficient for track circuiting. MSDAC will have 2 EM08 Cards that
can be used in UP & DN Line for increased availability.
Figure 12: Single Detection Track Circuit Scheme
MSDAC –MODEL DACF-730-32DP
Dual DetectionbyMSDAC may alsobeachieved by adding detections on left rail andright rail and adding
2 EM08 & RELAY DRIVER modules in the evaluator end.
Figure 13: Double Detection Track Circuit Scheme
DP 1
DP 3 DP 4
DP 2 DP 5 DP 6
DP 7DP 8
DP 10
DP 11DP 12
TS1
TS 2
TS 3
TS6
TS7
TS8
TS 5
TS4
DP 9
UP
DN
DP 1
DP 3 DP 4
DP 2 DP 5 DP 6
DP 7DP 8
DP 10
DP 11DP 12
TS1 & TS1'
TS 2 & TS2'
TS 3 & TS3'
TS6 & TS6'
TS7 & TS7'TS8 & TS8' TS 5 & TS5'
TS4 & TS4'
DP 9
UP
DN
DP 4'DP 3'
DP 2' DP 5' DP 6'DP 1'
DP 7'
DP 8'
DP 9'
DP 11'
DP 10'
DP 12'
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2. AUTO SIGNALLING
Figure 14 shows the scheme for using CEL’s MSDAC inAuto Signalling Section
SYSTEM OFFERED – One DACF-730-8DP for UP Line & DN Line at StationAand one DACF-730-8DP
at StationB. Dual Redundancy withhighavailabilitymaybeachievedhaving 2 DACF-730-8DP inone MSDAC
Rack.
POWER SUPPLIEDTO DP UPTO 4 KMS will besuppliedby using High Voltage DC-DC Converter (DC-
210) on 24V DC Battery Bank. One additional DC-210 may be kept at intermediate hut that will feedpower to
DPs beyond 4 kms.
ONE SM’S RESET PANEL will be at Station A and one Reset Panel will be at Station B having provision
for all the track sections.
CABLE REQUIREMENT
4Q for UP Linefor DP-1 to DP7 fromStationA& DP9 & 4Q for UPLine fromStationB for DP8, DP9
to DP16.
4Q for DN Line for DP-1 toDP7 &DP9 fromStation B & 4Q for UP Line fromStationAforDP8, DP9
to DP16.
1Q for Cooperative Reset from Station A & Station B
3. IBS Signalling
Figure 15 shows the scheme for usingCEL’s MSDAC for IBS application
SYSTEM OFFERED
DACF-730-8DP model with Dual CE-501-8DP in Single rack may be used. For High reliability with dual
detection can be used by using spare DP connections in the same scheme or using 4 separate 8 DP module
installed in same evaluator or 2 or 4 evaluators. The local power will be used to power on DP’s fromIB Hut by
using one High Voltage DC-DC Converter.
Dual DP will be used for generating relay output ‘O’ in UP Line & ‘R’ in DN Line. The intermediate DP’s
will be of Dual DP that will interact with Evaluators at both end.
POWER SUPPLY & CABLE REQUIREMENT:-
POWER REQUIREMENT
12W per Detection point
24W for Central Evaluator (16DP Model) & STATION MASTER PANEL
CABLE REQUIREMENT
½ Quad from Relay Room to each DP.
2 core 6mm2 or 10mm2 Copper from battery bank to central evaluator & SM’s Room.
2 core twisted shielded cable from CT Rack to Central Evaluator
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Figure 14 : Use of MSDAC for Auto Signalling
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Gyandeep - Anniversary Issue ‘16
Figure 15 : Use of MSDAC for IBS
21. Page 88
Scheme of Block Operation with 2.4 GHz Digital Microwave Radio
The Block Instrument is connected to the fail-safe multiplexer - UFSBI using signalling or PIJF cable, so
that DC and FM signals are exchanged between them reliably. The UFSBI is subsequently connected to the
communication media, i.e. Microwave Radio directly through RS232C data port DB9 connector (@ 2.4 Kbps)
For instance, when a bell plunger of the SGE DLBI or Diodo TLBI is pressed the DC signal generated from
the Block Instrument, is used to energize aninput relayat one end, whichis transmitted to the other end through
the communication media via modem to the other end, and subsequently picks up an output relay. The output
relay is used tocommutatethe local DC supply to the receivingend Block Instrument, as if it is connected to the
other machine using copper cable and thereby completes the DC current loop.
In order to perform the inter-station voice communication the Radio provides an Ethernet port. A VOIP
adaptor is used to interface between the conventional E&M phones used in railways and the IP port of radio,
thus providing toll quality secured voice communication.
Fig 1. System Layout of Block Working on Microwave Radio using UFSBI (as per RDSO/SPN/147/
2005) including secured Voice Communication
HOT STANDBY WIRELESS LINK FOR RAILWAY SIGNALLING
UFSBI, AXLE COUNTER & SECURE VOICE
Shri IN Mukherjee, Director,Deltron Eqpt and Systems Pvt.Ltd.