Wireless sensor networks have the potential to replace wired systems on aircraft and enable fly-by-wireless control. They could reduce aircraft weight and wiring complexity while increasing the number of sensors. Specifically, using WSN for aircraft engine control systems could lower weight by 90 lbs on small aircraft and increase range by 10%. WSN also enable improved structural health monitoring, engine health management through condition-based maintenance, and integration of multiple aircraft systems. However, further research is still needed in areas like information fusion, energy harvesting, high-temperature electronics, spectrum allocation, and security/safety certification for full implementation on commercial aircraft.
A CAN BUS BASED SYSTEM FOR MONITORING AND FAULT DIAGNOSIS IN WIND TURBINE Own preparations
A CAN based architecture is designed for the purpose of intensive monitoring and fault diagnosis in wind turbine. It provides a full automation system. CAN (Controller Area Network) Bus is a high speed serial data bus with high transmission rate. CAN Bus interface technique with an integration of electro-mechanical subsystems that embeds network control systems is proposed along with ARM controller to monitor and diagnose the problems in the wind turbine application. CAN BUS will enable the data transmission between two units at the same time without any disturbances. The transmission time of data is decreased with this CAN protocol. ARM core1 (LPC2148) interfaced with CAN transceiver and wind turbine sensing units. ARM core2 is interfaced with fault diagnose and monitoring section. Weather Condition (WC) monitoring and Generation Voltage (GV) display is also added in this design. Data acquisition node collects the sensed data through CAN protocol. This technique reduces the possibility of fault and increase the monitoring of wind turbine.
A type of flight-control system where input command signals are sent to the actuators through the medium of optical-fiber lines. The feedback from the control surfaces and other systems is routed in a similar way. The inputs from the control column, aircraft control surfaces, and other data, such as static and dynamic pressure and angle of attack, are fed into a computer connected to fiber-optic lines. The computer then provides data for movement of the aircraft control surfaces through these cables.
A CAN BUS BASED SYSTEM FOR MONITORING AND FAULT DIAGNOSIS IN WIND TURBINE Own preparations
A CAN based architecture is designed for the purpose of intensive monitoring and fault diagnosis in wind turbine. It provides a full automation system. CAN (Controller Area Network) Bus is a high speed serial data bus with high transmission rate. CAN Bus interface technique with an integration of electro-mechanical subsystems that embeds network control systems is proposed along with ARM controller to monitor and diagnose the problems in the wind turbine application. CAN BUS will enable the data transmission between two units at the same time without any disturbances. The transmission time of data is decreased with this CAN protocol. ARM core1 (LPC2148) interfaced with CAN transceiver and wind turbine sensing units. ARM core2 is interfaced with fault diagnose and monitoring section. Weather Condition (WC) monitoring and Generation Voltage (GV) display is also added in this design. Data acquisition node collects the sensed data through CAN protocol. This technique reduces the possibility of fault and increase the monitoring of wind turbine.
A type of flight-control system where input command signals are sent to the actuators through the medium of optical-fiber lines. The feedback from the control surfaces and other systems is routed in a similar way. The inputs from the control column, aircraft control surfaces, and other data, such as static and dynamic pressure and angle of attack, are fed into a computer connected to fiber-optic lines. The computer then provides data for movement of the aircraft control surfaces through these cables.
This presentation is about the Avionics System Standards in terms of hardware and software briefly discussing the DO-254( ) and DO-178( ) as required for basic understanding.
Electronic pressure sensors used in aircraftLahiru Dilshan
This report is prepared using different types of pressure measuring sensors that use in aviation. There are different categories of pressure sensors and different applications.
This presentation is about the Avionics System Standards in terms of hardware and software briefly discussing the DO-254( ) and DO-178( ) as required for basic understanding.
Electronic pressure sensors used in aircraftLahiru Dilshan
This report is prepared using different types of pressure measuring sensors that use in aviation. There are different categories of pressure sensors and different applications.
Presentation "Mobile Communication in the Aircraft Cabin" held at the Seminar "Aircraft Cabin and Cabin Systems" 22-Sep-2004 Dresden Germany at DGLR Annual Congress
(Deutsche Gesellschaft für Luft- und Raumfahrt / German Society for Aeronautics and Astronautics)
for more information see www.rudolf-appel.de/wirelesscabin/
Recently, in many cases, the reason for a patient staying in the hospital is not that he or she actually needs active medical care. Often, the principal reason for a lengthy stay in the hospital is simply continual observation. Therefore, efforts have been made to avoid acute admissions and long lengths of stay in the hospital. In recent years, emergency admissions and long lengths of stay have become extremely costly. So the focus of health policy has shifted away from the provision of reactive, acute care toward preventive care outside the hospital. As models of care are redesigned, health economies are seeking to provide more care outside large acute centers. The drivers for this shift are two-fold; first, there is a quality-of-care issue and second, there is a resource allocation issue. Being cared for in a patient’s own home is a key aim of current U.K. government health policy and that is driven by an imperative to provide better quality care to people without the need to disrupt their lives. Investment in technologies that enable remote monitoring would lead to long-term gains in terms of hospital finances and patient care.
Structural Health Monitoring System Using Wireless Sensor NetworkIJEEE
The longevity and health monitoring of structure are important for their lifespan optimization and preservation. WSN technology has proven to be a boon for structural health monitor- ing in recent year due to its ease of installation, minimal struc- tural intervention/damage and low cost. This paper provides a re- view on the recent developments in the area of SHM using WSNs.
Introduction
Background
WSN Design Issues: MAC Protocols, Routing Protocols, Transport Protocols
Performance Modeling of WSNs: Performance Metrics, Basic Models, Network Models
Case Study: Simple Computation of the System Life Span
Practical Example.
Communication over the kinds of Data-Links used for unmanned vehicles presents important challenges dues to the low bandwidth, intermittent, and lower reliability of these links. Classic network protocols such as TCP do not operate well in this environment forcing application developers to implement their own reliability and session management. This presentation describes he issues and alternatives.
Health Monitoring System of Elderly using Wireless Sensor NetworkIjcatr04031005Editor IJCATR
Wireless-sensor-network-based home monitoring system for elderly activity behaviour involves functional assessment of daily activities. In this paper, we report a mechanism for estimation of elderly well-being condition based on usage of house-hold appliances connected through various sensing units. We define a two new wellness functions to determine the status of the elderly on performing essential daily activities. The modernized system for monitoring and evaluating the essential daily activities was tested at homes for four different elderly persons living alone and the results are encouraging in determining wellness of the elderly.
The Schneider Electric MetConsole® Low Level Wind Shear Alert System (LLWAS) – a module of the company’s MetConsole Aviation Weather Suite – provides the reliable and timely information and alerting to the gust fronts, downbursts or microbursts induced by thunderstorms. It helps minimize disruptions, caused by these wind shear conditions, to aircraft flying below 1,000 feet while approaching and departing airports.
Deep Learning for industrial Prognostics & Health Management (PHM) Michael Giering
High level abstract of some of the 2014 - 2015 Deep Learning multi-modal fusion work and PHM applications performed at UTRC, E. Hartford CT. Poster for the GTC Nvidia conference.
See more at the KDD 2016 workshop on Machine Learning for PHM.
International Journal of Engineering Research and Applications (IJERA) is a team of researchers not publication services or private publications running the journals for monetary benefits, we are association of scientists and academia who focus only on supporting authors who want to publish their work. The articles published in our journal can be accessed online, all the articles will be archived for real time access.
Our journal system primarily aims to bring out the research talent and the works done by sciaentists, academia, engineers, practitioners, scholars, post graduate students of engineering and science. This journal aims to cover the scientific research in a broader sense and not publishing a niche area of research facilitating researchers from various verticals to publish their papers. It is also aimed to provide a platform for the researchers to publish in a shorter of time, enabling them to continue further All articles published are freely available to scientific researchers in the Government agencies,educators and the general public. We are taking serious efforts to promote our journal across the globe in various ways, we are sure that our journal will act as a scientific platform for all researchers to publish their works online.
Test platform for electronic control units of high-performance safety-critica...IJECEIAES
In this paper we are mostly concerned with the problem of testing electronic control units of synchronized electric power actuators. This task is particularly complex for safety critical applications, where it is crucial that the control system properly reacts in response to the faults that are hard to reproduce and verify. A cost-effective flexible and reconfigurable test platform is proposed, discussing its architecture and implementation. The proposed system facilitates the phase of definition and development of the electronic control unit, allowing the interfacing towards both hydraulic and electromechanical actuators, and having a high flexibility as regards the I/O signals. Some results, obtained during the laboratory test activity, are also presented.
Smart aerosonde UAV longitudinal flight control system based on genetic algor...journalBEEI
Synthesis of a flight control system for such an aircraft that achieves stable and acceptable performance across a specified flying envelope in the presence of uncertainties represents an attractive and challenging design problem. This study uses the genetic self-tuning PID algorithm to develop an intelligent flight control system for the aerosonde UAV model. To improve the system's transient responses, the gains of the PID controller are improved using a genetic algorithm (GA). Simulink/MATLAB software is used to model and simulate the proposed system. The proposed PID controller integrated with the GA is compared with the classical one. Three simulation scenarios are carried out. In the first scenario, and at normal conditions, the proposed controller performance is better than the classical one. While in the second scenario, identical results are achieved from both controllers. Finally, in the third scenario, the PID controller with GA shows the robustness and durability of the system compared with the classical PID in presence of external wind disturbance. The simulation results prove the system parameters optimization.
This Presentation was prepared to tell the students how to write a letter to the teacher and business type letters were discussed in this presentation.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
3. The first step towards fly-by-wireless control systems is likely
to be the introduction of wireless sensor networks (WSNs).
A typical commercial/military aircraft consists:
1: Safety-critical systems, such as aircraft engine control
system, aircraft flight control systems
2: Non safety critical systems, such as structural and engine
health monitoring systems, aircraft cabin environmental control
system, inflight entertainment system, etc.
INTRODUCTION
4. Current systems based on wired connections:
1. Complex
2. Difficult to route
3. Heavy and prone to damage
The Airbus A380 for instance has:
1. 300 miles of cables
2. 98,000 wires
3. 40,000 connectors
CONTI……
5.
6. So with Replacement of the current wire harness-based
sensors with (WSN) we can achieve:
Reduce the aircraft system weight.
Increasing the number of sensors.
Improved fuel efficiency and reduced carbon emissions.
Reduction in direct costs.
In a recent study, that the use of a WSN can results:
90 lbs. weight reduction of Cessna 310R control systems.
Increases its range by around 10%.
CONTI…..
9. WSNs consists:
Cluster of intelligent sensors designed to monitor
physical parameters vibration, temperature, strain,
pressure, etc.
Each sensor node within the network performs the
function like sensing, data processing and wireless data
transmission.
Use of microelectromechanical systems (MEMS)
technology enables:
production of low-cost, low-power multifunctional sensors
having very small size and light weight.
APPLICATIONS OF WSNs FOR AIR
CRAFT SYSTEMS
10. The present aircraft engine control systems are based on a
centralized architecture known as (FADEC).
Heavily shielded analog wire harnesses are used b/w
sensor/actuator nodes and FADEC.
Which imparts a heavy weight penalty and high
maintenance cost.
Before implementing WSN for AEC an intermediate step is
distributed control architecture.
In distributed engine control (DEC), the functions of
FADEC are distributed at the component level.
Each sensor/actuator is replaced by a smart sensor/actuator.
Distributed Aircraft Engine Control
11. These smart modules include local processing
capability to allow and diagnostics and health
management functionality.
DEC allows the implementation of advanced engine
control technologies:
Active clearance control, active stall and surge
control, active combustion control.
Which will improve aerothermodynamic efficiency,
lower emissions and also help to reduce the control
system weight.
Initially, WSN can be used only for the redundant
sensors of DEC systems. An ideal DEC architecture,
which will make use of the advantages of WSN, will
have actuators with wired connections in order to
provide a secure reliable control system architecture.
CONTI……..
12. An aircraft engine is a complex system requiring regular maintenance to
ensure flight safety. Engine maintenance, repair and overhaul (MRO)
operations are time consuming and costly.
Hence, in order to improve the time-on-wing of aircraft engines, it is
desired to perform condition-based maintenance, which uses real-time data
to schedule maintenance.
Use of WSN for aircraft engine health monitoring will enable
implementation of condition-based monitoring algorithms due to availability
of real-time data.
Each of the sensor nodes of the WSN will communicate with an on board
diagnostics and health monitoring system, which will
store the data points for the entire flight.
Once on ground, this data will be transmitted to the maintenance workshop
through wireless communication.
This will allow the use of online as well as offline diagnostic algorithms.
WSN FOR AIRCRAFT ENGINE
HEALTH MANAGEMENT
13. The aircraft flight control systems consists:
1: Flight control surfaces 2: cockpit controls 3: sensors and
communication linkages b/w 1 & 2 actautors.
Although the use of fly-by-wire(FBW) reduces the weight but system
is still bulkier.
Intelligent flight control systems (IFCS) are being developed to safely
control the aircraft in the presence of structural damage.
Increasing the number of sensors, without a substantial increase in
weight is possible only by implementation of WSN.
WSN will enable integration of several systems into one.
The use of WSN for both aircraft engine control and aircraft flight
control will allow integration between flight control and propulsion
control, which can significantly improve performance of military
aircrafts as well as UAVs.
FLY-BY-WIRELESS AIRCRAFT
FLIGHT CONTROL SYSTEMS
14. One of the other advantage of
using fly-by-wireless flight
control systems based on
WSN is :
If the pilots or flight deck
controls become inoperable
or incapacitated, ground-
based air traffic control
(ATC) or adjacent military
aircraft with necessary
electronics, can control the
aircraft.
CONTI………
15. The increasing use of composite materials for aircraft structures, it is
necessary to develop novel methods for aircraft structural health monitoring.
Most of the failures of the laminated composite structures originate with
delamination of layers, and for metal aircraft structures, cracks are
developed in metal structures which grow over time leading to failures.
For both of these cases, visual inspection is not a reliable method for failure
detection. This calls for a vibration analysis-based failure detection method.
WSN can be embedded into the composite structure which will harvest the
vibration energy and will transmit the real-time data to the central health
monitoring unit.
These sensors will be used to monitor the internal parameters like cracks,
strain as well as external parameters like temperature, load, etc.
WSN FOR AIRCRAFT STRUCTURAL
HEALTH MONITORING
16. Aircraft Hydraulic Monitoring Systems:
These systems play a very important role in powering
primary and secondary flight control systems as well as
several other like wheel brakes, cargo doors, loading
ramps, etc.
By replacing the conventional sensors by WSN, it will be
possible not only to display the signals to the gages in
cockpit, but also to the ground servicing personnel for
conducting on-wing aircraft engine maintenance.
Environmental Control Systems:
(ECS) provide air supply with optimum humidity and
sufficient oxygen concentration to the passengers and crew
and are also used for thermal control of the avionics, fuel
and hydraulic systems.
Use of WSN for ECS will help to increase their reliability
as well to improve the efficiency of the aircraft engines.
OTHER NON SAFETY CRITICAL
SYSTEMS
18. Emergency systems:
Use of WSN for smoke and fire detection systems,
emergency lighting systems, passenger address systems,
etc.
Can help to reduce the weight and wiring complexity of
these systems along with increasing their reliability.
CONTI………
19. Research needs to be conducted in the area of information
fusion of wireless sensor networks for aircraft systems.
Energy harvesting methods needs further improvement
in the terms of efficiency and reliability.
Development of high temperature electronics will enable the
use of WSN for aircraft engine control and health
monitoring.
A dedicated global spectrum for WSN for aircraft applications
needs to be developed.
New wireless aircraft certification regulations needs to
be developed to address the various security and safety
threats.
Future Enhancements