Microcontroller based automated water level sensing and. Pdf design of a microprocessorbased control system of a. The principle components of a microprocessor system as well as their interaction and interconnection are discussed. The objective of the project was to automate and control temperature for a server. Microprocessorbased traction control system for 25 kv ac. An attempt has been made to obtain a balance between theory and practice, with. A transputer can be used as a single processor system or can be connected. Improved technology in the field of microprocessor based digital control systems has made the application of control and fault diagnostic system possible in conventional locomotives. Proper knowledge and up keeping of mep control system version 3. Sal microprocessor control system upgrade for older. Introduction to microprocessors the microprocessor is one of the most important components of a digital computer.
Report of a comparative analysis of the interlocking. Us4711418a radio based railway signaling and traffic. The microprocessor based control and fault diagnostic system has been developed for conventional electric locomotives including locos provided with static converter. The objective of this paper is to provide an automatic railway gate at a level crossing replacing the gates operated by the gatekeeper. Sensor based automatic control of railway gates international. This system is being tested in the field in different areas for its performance. The proposed model has been designed using 8052 microcontroller to avoid railway accidents occurring at unattended railway. Here we designed a simple non contact tachometer using microcontroller which can measure speed with an accuracy of 1 revsec density based traffic signal system using microcontroller. Railways approached the railway board with a proposal for indigenous development of microprocessorbased traction control systems, primarily targeted. Overview of microprocessorbased controls in transit and. Railway signalling solid state interlocking ssi railway. Embedded realtime clock based industrial devices control system. Automation of railway gate control using microcontroller. This microprocessor is interfaced with one or more external components, and it is necessary that this system must provide the desired result.
As technology has progressed, microprocessors have become faster, smaller and capable of doing more work per clock cycle. Engineering and commissioning llp was created by experts in railway industry aiming to make it possible for countries all over the world to build safe railroads and help people travel around the world in. Commissioning microprocessor based ied communication. Generalpurpose microprocessor used in general computer system and can be used by programmer for any application.
It is the set of instructions that the microprocessor can understand. Lecture note on microprocessor and microcontroller theory. Microprocessor based systems, also known as mbs, are those systems in which the key component is a microprocessor. Control system the vital part of diesel electric locomotive. After mentioning the sound applications to monitoring onboard equipments, traffic control, passenger information systems, control at marshalling yards, etc. In 2010 zeit became a subsidiary of progress rail services, a caterpillar company zeit control.
Usually, there is a memory sub system in a microprocessorbased system. General overview of the system the research work presented here is the design and development of a microprocessor based automatic gate. Application of microprocessors in railway systems has been as prom. Microprocessorbased railway interlocking control with. Data verified includes, but is not limited to that of scenario a, but also, alarms, control, status, events, reports. The microprocessor as a railway control system component. Present day railway control systems are based on the use of. Such programmatic approach entails microcontroller based automated water level sensing and controlling. To design an 8086 based system, it is necessary to know how to interface the 8086 microprocessor with memory and input and output devices.
Microprocessorbased gammaray spectral logging with scintillation detector to trace the analog profiles of total, k, u and th channels with corresponding depth. Here we employ the microprocessor intel 8085 to handle the signaling, track changing and gate operation and to monitoring the traffic. Microcontroller microprocessor with builtin memory and ports and can be programmed for any generic control application. Later sections include more focused discussions on differing types of system. Commissioning microprocessor based ied communication systems an65a00 6 b. Gps and microcontroller based geographical location identification system. Automatic railway gate control system using microcontroller. In this paper is presented the design and implementation of a microprocessorbased computer system for the control and operation of a compression molding process system. The objective of this paper is to manage the control system of railway gate using the microcontroller. Random access memory ram also known as readwrite memory. It is a leader in the railway automation industry, primarily manufacturing the sal microprocessor system for locomotive control, increased adhesion, and remote diagnostics. The availability of low cost, low power and small weight, computing capability makes it useful in different applications. Design and implementation part is described in chapter four. Hand signals include signals given by hand, or by flags or lamps used.
Gps based trainbus station indication system with display on lcd. Today a microprocessorbased control system is a fundamental component in many of the industrial control and automation applications. The aim of this project is to demonstrate the incorporation of computer method in railway traffic control to improve, safety, speed of handling the traffic and also reliability. Each train communicates with devices, such as passive beacons, which provide zone boundary messages. Design and implementation of a microprocessor based temperature controller with real time display 1samuel ndueso john, 2charles ndujiuba, 3oladeinde ifedayo oluwaseyi, 4ibeanu charity onyinye 1,2,3,4department of electrical and information engineering, covenant university, ota, ogun state abstract. Microprocessorbased system identification by signal compression method. Gbt 180382000 general specification of microprocessor. Automatic level crossing system spa4 is microprocessors system automatically protecting traffic on railway crossing. Hkkjr ljdkj government of india ministry of railways. Condition based maintenance on rail vehicles possibilities for a more effective maintenance strategy.
Barc was identified as a partner in this development and doe agreed to partfinance this work. It includes the alu, register arrays and control circuit on a single chip. It determines the number of operations per second the processor can perform. Short circuit level highest system voltage kv short circuit apparent power mva 52 200 72. Recent advances in lsi technology and the consequent availability of inexpensive but powerful microprocessors have already affected the process control industry in a significant manner. A transputer is a specially designed microprocessor with its own local memory and having links to connect one transputer to another transputer for interprocessor communications. The use of microprocessors has evolved in rail tran sit and has spread to all the. In order to eliminate the restriction caused by railway communication on development of national economy, heavy duty transportation is the main direction planned by the. Automatic railway gate control system using 8051micro controller.
The object of this book is to present both hardware and software concepts that are important in the development of microprocessorbased control systems. Economics of computer based system for industrial application 1. In chapter three we described the concrete idea of pic16f84a. Railway gate may be saved for the road users to prevent accidents in terms of train speed at level crossing. To perform a function or useful task we have to form a system by using microprocessor as a cpu and. Osacbm is an abbreviation for open system architecture for condition based maintenance and is. Prepc microprocessor history it is interesting to note that the microprocessor had only existed for 10 years prior to the creation of the pc. Abstracta laboratory model incorporating a microprocessorbased system to control signals and points and to monitor track circuits is described. Included is a discussion of the system software necessary for a microprocessor system to be useful. This approach is successful in conventional electric traction systems.
Railways approached the railway board with a proposal for indigenous development of microprocessorbased traction control systems, primarily targeted towards retrofitting the large fleet of tapchanger locomotives owned by indian railways. Microprocessor based locomotive control system mep 660. The impact of microprocessor in different lures of fields is significant. A fully integrated ied equipped substation with 25 breakers testing the full complement of data displayed on a local monitoring system and rtu.
High voltage fuse blown indicator with display on computerpc. Intel 8085 microprocessor based system the microprocessor is a semiconductor device integrated circuit manufactured by the vlsi very large scale integration technique. Sensor based railway gate automation system is developed. In this system, we use ir sensors to measure the traffic density. Automatic railway gate and crossing control based sensors. It was first designed in 1980 by inmos and is targeted to the utilization of vlsi technology. The registers inside the microprocessor read only memory rom used to store information that does not change. Due to the mismatch in the speed between the microprocessor and other devices, a set of latches and buffers are required to interface the microprocessor with other devices. Unlike a generalpurpose computer, such as a personal computer, an embedded system performs one or a few predefined tasks, usually with very specific requirements. Chapter two concentrated with the basic concepts of the system design.
An embedded system is a specialpurpose system in which the computer is completely encapsulated by or dedicated to the device or system it controls. Pdf ee6008 microcontroller based system design mcbsd. Particular applications of microprocessors in trainborne logic systems are described. Hand book on microprocessor based control system version. This is a maintenance free alternative to the popularly used e type excitation for this application. It is the number of bits processed in a single instruction. Government of bangladesh has published international tender notice for design, supply, installation, testing and commissioning of computer based interlocked signaling system at 7 stations including interlocking of selected level crossings and installation of optical fiber cable based telecommunication system for block operation and ctc interface work turnkey works in. In this paper is presented the design and implementation of a.
Now nearly 20 years later, we are still using systems based more or less on the design of that first pc. This figure above shows a block diagram of a mbs in general. It will be discussed here for historical reasons and because some equipments terms it is used in other systems. Application of microprocessors in railway systems has been as promising as is.
Assume your human brain as a microprocessor which can store memory. A microprocessorbased locomotive brake control system having an electropneumatic brake pipe pressure regulating circuit via which a train brake pipe pressure is controlled and a normally closed charging cutoff valve between the brake pipe regulating circuit anad the brake pipe. Now a days, a microprocessor based systems are used in instructions, automatic testing product, speed control of motors, traffic light control, light. The charging cutoff valve is electropneumatically controlled in order to effect opening of the normally closed. Gb180382000general specification of microprocessorbased protection equipment for electrified railway traction power supply system text of document is in chin. A railway signaling and traffic control system which minimizes the wayside equipment and eliminates the pole lines which carry power and signals along the rightofway using instead the radio channel between the trains and the central office.
I current increment relay are usually used as main and backup feeder protection of electric traction systems. The development and manufacture of hardware and software for the traction control system was taken up at barc. As a monitoring and control system, the microprocessor was used to read in data values from the input device and interact with the outside world. Reviewing a microprocessor based system design information. Microprocessors are being increasingly utilized for improving the performance of control systems and making them more sophisticated as well as reliable. Application of microprocessors in railway systems has been as promising as is seen in other fields. A microprocessor is a programmable, multipurpose, clock driven, registerbased electronic device that accepts binary data as input, stores it in the form of instructions, processes the data and gives the desired output. Medhas microprocessor based loco control system type mep 660 uses stateofart technology, for controlling diesel electric locomotives.