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IRJET- Password based Circuit Breaker using DTMF
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IRJET- Password based Circuit Breaker using DTMF
1.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 347 PASSWORD BASED CIRCUIT BREAKER USING DTMF Mithilesh Padhen1, Prof P.V. Sontakke2 1Student, Dept. of Electronics and Telecommunication Engineering, Pimpri Chinchwad College of Engineering, Pune, Maharashtra, India 2Professor, Dept. of Electronics and Telecommunication Engineering, Pimpri Chinchwad College of Engineering, Pune, Maharashtra, India ---------------------------------------------------------------------***---------------------------------------------------------------------- Abstract - Today, in the age of technology and high- end machines working on a live electric line is now considered significantly safer than in years past. Therapidandstructured growth of the electrical industry has developed effective standards and established safety procedures to minimize various types of major hazards that led to severe injuries and death of the operators. However, if thescenarioof the line needs to repair that’s where the job will be. Understanding various potentialdangersofworkingwithvery high-voltage equipment is mandatory before going up on any electrical pole or high voltage devices. Given the tremendous challenges and opportunities, the job entails, understanding and learning what could go wrong in the process of implementing is the optimized and safe way to ensure an accident doesn’t occur in the case of electrical circuits. So, in this project, a password-based circuit breaker is designed which is an operated electrical switch which designed to protect an electrical circuit from damage or breakdown caused by excess current from an overload or short circuit, or any other failure. The project having primary function is to interrupt the current flow after afaultisdetected. Considering the case of fuse, which generally operates once and then it has be replaced, but a circuit breaker can be reset either manually or automatically according to the working conditions present to resume normal and smooth operation. Key Words: Live Electric line, High-voltage equipment, Circuit breaker, Current flow, Fuse etc. 1. INTRODUCTION The Power system fault is an unwanted condition occurring in the power system. These types of conditions are short circuit, current leakage, ground short, over current andover voltage. The methodology used here is the application of the mobile technology with the electrical circuit.Also,itinvolves integration of DTMF module with circuit and loads for generating output response of the system, which will eventually produce a very efficient and reliable result. 1.1 Objectives To study and simulate the circuit using different simulation software. To interface different components to the microcontroller. To study the PCB design including coating, etching, drilling etc. To mount the component with proper soldering. To test a circuit using breadboard and troubleshoot the same and to generate the report based on the overall system. 1.2 Problem Statement This password-based circuit breaker system using DTMF should provide a solution which ensures the safety of the system of the maintenance staff and provide security. 2. METHODOLOGY 2.1 Block Diagram Fig-1: Block diagram Here the mobile phones are used as the inputs for the systems and the DTMF module decodes the signal and give the output to the microcontroller. Then controller provides input to the relay driver and then relays will work at last the load will be ON or OFF. 2.2 Working Principle DTMF encoder which is generallypresentinmobiles,and the decoder circuit is present in the microcontroller.Themobile is connected at one end of the circuit with the help of the phone jack. The mobile jack has a presence of twowires. The red wire is connected to the decoder IC and the black one is grounded. Whenever the user tries to make a call to the number in phone, then automatically the call goes into auto answer mode and the frequency of the signal corresponds to key pressed on the phone keypad send by the user is decoded by
2.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 348 the module of DTMF decoder resulting this decoded signal acts like a strobe signal to the microcontroller. So, the microcontroller senses thestrobesignal,andthen the function which is corresponding to the obtained decoded value will be performed by the microcontroller according to predefined program code writtenin thecontroller.Resulting the corresponding load will be turned ON/OFF by of the relay connected between the controllers and the load. 3. SPECIFICATIONS 3.1 PIC MICROCONTROLLER Performance 10 MIPS up to 3 Volt Architecture Optimized RISC Internal Oscillator 31 KHz to 8 MHz with 4xPLL Voltage Range 2.0 to 5.5 Volts Modes Run, Idle and Sleep ADC System 10-bit ADC, 13 Channels Voltage Detection and Reset Programmable low voltage detection and reset module Comparators Two analog comparators with multiplexing peripherals Serial Ports Master synchronous serial port with SPI and I2C mode Timers 4 Timer having capacity up to 5 PWM outputs 3.2 DTMF Dual-tone multi-frequency signalling (DTMF) is an identity related to the telecommunication engineering in which the concepts of the signaling system used. Now, in case of the signaling system the voice-frequency band which is present over the telephone lines between telephones system and other communications devices present and switching centers. So, the DTMF type of system uses a set of various eight audio frequencies which is generally transmitted in pairs to represent 16 different signals, represented by the ten digits, including letters and symbols A to D, and # and *. As the signals become in the voice frequency range, they can be transmitted through electrical circuits such as repeaters and amplifiers, and over radio communication and microwave links, thus eliminating and eradicating the need for various intermediate operators present onlong-distance circuits. 3.3 Relay Relay is an electromagnetic switch which used tocontrol the electrical device. Copper core magnetic fluxes play the main role here. The relay’s switch connections are labelled COM, NC and NO. COM = Common, it is the moving part of the itch. NC = Normally Closed, when the relay coil is off then the COM is connected to the NC. NO = Normally Open, when the relay coil is on then the COM is connected to the NO. 3.3 Relay Driver A Relay driver IC is an electro-magnetic switch that will be used whenever we want to use a low voltage circuit to switch a light bulb ON and OFF which is connected to 220V mains supply. The required current which is used to drive the relay coil is more than what can be supplied by various integrated circuits like Op-Amp, etc. Relays have various unique switching properties and they are replaced with the solid-state switches that are stronger than solid-state devices. Resulting ULN2003A is used as a relay driver. The ULN2003A is the monolithic type of high-voltage, high- current devices having Darlington transistor arrays. Each driver consists of seven n-p-n Darlington pairs that are having features of very high-voltage outputs with common- cathode clamp diodes for switching the inductive loads. Generally, the collector current rating of a single Darlington pair is 500 mA, these Darlington pairs may be paralleled for higher current capability if required. 4. SOFTWARE ARCHITECTURE 4.1 Flowchart Fig-2: Flowchart
3.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 349 4.2 Algorithm Get the inputs using the mobile phones Convert inputs into the decode signal with the help of DTMF decoder Communication betweenthe DTMF decoderandthe microcontroller Microcontroller checking the inputs with the predefined passwords Coordination between controller and the relay driver Relay driver driving the present relays Connected load gets turned ON or OFF 4.3 Simulation of Circuit Fig-3: Simulation of Circuit The simulation tool used is Proteus Design Suite. The Proteus Design Suite is a Windows applicationforschematic capture, simulation, and PCB layout design. It can be used in many configurations, depending on the size of designsbeing produced and the requirements for microcontroller simulation. 4.4 PCB Design Layout Fig-4: PCB Design Layout The tool used for PCB designing is ExpressPCB. The PCB Layout module is automatically given connectivity information in the form of a netlist from the schematic capture module. It applies this information, together with the user-specified design rules and various design automation tools, to assist with error-free board design. 5. HARDWARE ARCHITECTURE 5.1 Mechanical Setup Fig-5: Mechanical Setup 5.2 Details Here the call from one phone is dialed to another one and that call is received in auto-answer mode so the connections are established. Now in this case for turning ON the load 1, load 2, load 3, load 4 the password is set as 1234, 2234, 3234, 4234. As shown above the passwords 1234, 2234,
4.
International Research Journal
of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 09 | Sep 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 350 3234 are used for turning ON the load 1, load 2, load 3. The same passwords can be used for turning OFF the load1,load 2, load 3. 6. CONCLUSION The developed control method uses the various commercial mobile communication networks as the path of data transmission resultingprovidinghigherreliability, efficiency and optimization to the user to who controls the system continuously by sending the mobile phone keywords as inputs to the module of DTMF. Also, the system works on a single given known password. No other person can re-close the breaker once the password is givenintothesystemother than the person who has given it. It is an effectivemethodfor providing safety to working staff, and thereisnoscopeofthe password stealing. FUTURE SCOPE Future work includes research on the robot control system mobile communication networks. This will facilitate controlling the remote robot, using the DTMF of mobile phone with video data from the remote mobile robot’s camera. In this project, implementation is done only for 4 loads. Integration of many loads each with a unique ID can be done. Automatic fault detector circuit can be used along with this system with the help of feedback mechanism. ACKNOWLEDGMENTS I am grateful to my project guide Prof. P. V. Sontakke for the immense support and keen interestshownintheproject. We also acknowledge our overwhelminggratitudeandimmense respect to Dr. A. M. Fulambarkar, Principal of Pimpri Chinchwad College of Engineering and Dr. N. B. Chopade, Head of Department of Electronics andTelecommunications who inspired me a lot to achieve the goal and I came to learn about so many new things. REFERENCES [1] Lalitha urs B.R., Meghna K.S, Mouna Machamma P.M, Sumitha Suresh, AshwiniK.R,“SwitchingOperationofCircuit Breakers Using Password”, 2018 IJSRCSEIT | Volume 4 | Issue 6 | ISSN: 2456-3307 [2] Ratnesh Kumar, “DESIGN AND IMPLEMENTATION OF CELL PHONE OPREATED METAL DETECTOR”,International Journal of Research in Engineering, Technology andScience, Volume VI, Special Issue, July 2016, ISSN 2454-1915 [3] Kumar, R., & Khalkho, A. N. (2016). “Design and the implementation of metal detector using DTMF technology”. 2016 International Conference on Signal Processing, Communication, Power and Embedded System (SCOPES). doi:10.1109/scopes.2016.7955853 [4] Mrs. S. Kalpana, Mrs. Ch. Jayalakshmi “Password Based Circuit Breaker Using DTMF For Electric Line Man Safety”, International Journal ofScientificDevelopmentandResearch (IJSDR) July 2016 IJSDR, Volume 1, Issue 7 ISSN: 2455-2631 [5] P. Shrivastava, A. Gupta, A. Singh and A. Srivastava, "DTMF based securityRobot-SECBOTaneaseforun-manned security,"2014 International Conference on High Performance Computing and Applications (ICHPCA), Bhubaneswar 2014, pp. 15 doi: 10.1109 / ICHPCA.2014. 7045366 [6] Rngkuti, H. A., & Simatupang, J. W. (2015). “Security lock with DTMF polyphonic tone sensor”. 2015 International Conference on Automation, Cognitive Science,Optics,Micro- Electro-Mechanical System, and Information Technology (ICACOMIT). doi:10.1109/icacomit.2015.7440188
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