We use these requirements for the closed book pretest that we give on the first day of class. Design a system to accurately control the elevator to within one centimeter. Programmable logic controllers, basic level textbook. This design introduced the operation process of the lift. However, the weight of the elevator should be greater than the weight of the occupants. It links the use of logic gates to a simple service people utilize every day, and allows trainees to change the logic and the. For the sake of argument, let us assume that our building has twenty floors. The structure of the fuzzy logic controller makes it possible for a number of important objectives to be met simultaneously. Preliminarily, traditional elevator control systems work on the relay logic. A simulation study of an elevator control system using. These characteristics may involve power, current, logical function, protocol and user input. Design and simulation of plc control elevator springerlink.
From the logic of design to startup, operation and maintenance, this reference covers all aspects of wiring, relay logic, programmable logic controllers, and a host of electrical control applications and challenges youll encounter on the job. But, one unique aspect of this work is that we have not included. Simple arduino based 4 floor elevator project plcdoc. Sutagundar, design of a plc based elevator control sy stem, international j ournal on emer ging techn ologies special issue on ncriet 2015 62. The goal is to design an elevator control system so. An elevator controller is a system to control the elevators, either manual or automatic. In this paper, the elevator control system is designed for 4 floors and 4 station elevators using panasonic plc. Design of control circuit of an automated elevator employing mathematical logic abstract. This is to certify that the project entitled plc based elevator controller submitted in partial fulfillment of the requirement for the award of bachelor of technology in electrical engineering under wbut is faithful record of the bona fide project work, carried out by the following candidates under my guidance and supervision.
Thank you for sharing your valuable knowledge which is benefited to the industrial personnel, developers and retro fitters. Design process computer code circuit diagram autocad cost estimate conclusion. Also i want to see how you can decouple the elevator object from bank control logic. However, in fuzzy logic control systems, multiple objectives can easily be included in the design. The above explained elevator control using plc is for example only. Control logic is the part of the machine that creates a sequence of operations for the arithmetic and memory components of the machine. The elevator machine and elevator controller shall be located in the same machine room. The author has taken great effort to make this book very comprehensive by collecting not only the theoretical side but also the examples from different manufacture. In the design of our elevator group supervisory control system, the following objectives are considered. Ai2200c group control systems the systems, which employ an intelligent expert system and fuzzy logic, are specially designed for group control of 3 to 8 elevators as described above. An elevator shaft was included in the design, because cooper was confident that a safe passenger elevator would soon be invented. In accordance with the requirements of energy conservation design teaching building mingde building.
The shaft was cylindrical because cooper thought it was the most efficient design. Galaxy controls are renowned in the elevator industry for their ease of use, featurerich design, and reliability. This paper introduced the design and realization of the elevator experimental equipment based on configuration software and plc. Different voltages are offered for relaylogic boards. It maps the current machine state into the next machine state. Design a plc program to execute elevator system in a 2 floor apartment using allen.
Contact us for elevator consulting or customized training classes 757 2880268. Floors 1 and 4 will be used for this purpose, and all switches and lamps associated with these floors are to be made fully operational. In this plc design of iopin obtain as x0x7 are 8input pins and y0y5 are output pins. Intelligent elevator control by ordinal structure fuzzy logic. Digital logic design is foundational to the fields of electrical engineering and computer engineering. Overview proposal specifications features design process computer code circuit diagram autocad. Thanks to the adaptable, nonproprietary design of our controls, you have the flexibility to connect them to any gearless traction or hydraulic elevator operation. Elevator plc ladder logic programming instrumentationtools.
Throughout this course, a distributed realtime system an elevator control system is specified, designed, built, and simulated. This lesson simulates logic gates in a simple and practical way. Using configuration software in conjunction with the manipulators movement in the system gave the most intuitive exhibition and the dynamic imitation. Certificate of approval netaji subhash engineering college this is to certify that the project entitled plc based elevator controller submitted in partial fulfillment of the requirement for the award of bachelor of technology in electrical engineering under wbut is faithful record of the bona fide project work, carried out by. The ladder logic programming is used to simulate the proposed system. An elevator machine room shall be provided for each individual elevator or group of elevators. Jun 11, 2019 from ascending rooms to express elevators.
Jun 04, 2017 control logic is the part of the machine that creates a sequence of operations for the arithmetic and memory components of the machine. Although traditional perphase equivalent circuit has been widely used in steadystate analysis and design of induction motors, it is not appropriate. The first elevator shaft preceded the first elevator by four years. The problem statement is formulated as an algorithmic state machine that can be implemented with small scale integrationssi and medium scale integrationmsi logic modules as a. Proposal a threefloored elevator one door with safety sensor indicator suitable for parking garage, subway station, etc. The goal is to design an elevator control system so that the elevator will move from floor to floor. The controller usually tune down the voltage between 12v to 24v to the controlling system, only the motor needs 3phase power supply. Using configuration software in conjunction with the manipulators movement in the system gave the most intuitive exhibition and. The impact of cars, trains, and planes on our landscape, buildings, and culture has been well documented, but an account of the history of elevators, escalators, and moving sidewalks has previously been far from complete. Apr 17, 2016 elevator control using plc s7300 and wincc flexible.
Digital logic design university of california, davis. More number of connections of relay logic are found in traditional elevator system. The design of elevator control system based on plc and. This paper introduces the basic structure of elevator control system design and the simulation of the design using indraworksengineering which is a boschrexroth group plc simulation software. Dooroperator packages can be obtained with vandalproof hangers and tracks. Beginning with the basic principles of electrical logic, the author guides you through each step of the design of a sequencing logic system, including. In the design procedure of the elevator control circuit, the controller datapath approach was used.
The design and simulation were accomplished using matlabtm fuzzy logic toolbox. Some previous research papers have already addressed this problem 123. It links the use of logic gates to a simple service people utilize every day. Jan 03, 2016 design of elevator controller using verilog hdl 1. Even though the design was limited to four levels, some suggestions are given later as to how to extend the elevator system to more than four levels. In, the book of secrets by ibn khalaf almuradi in islamic spain described. Typically, the details of control logic are the last to be settled in the design cycle, since they are continuously affected by changing system requirements and feature enhancements. The elevator will contain from one to three occupants. Application of above concepts in design and implementation a control logic for elevator model. Fault detection control logic in an aircraft elevator control system example develop logic for a launch abort system 12. A simulation study of elevator control of a 3storey building has been presented in this paper using digital logic circuit. The design and simulation of a fourcars elevator controller in a nine storey building is described in this paper.
Another advantage of this approach is that the code becomes isomorphic to the transition graph, by which it was constructed. In preparation for the advanced elevator inspector training, we scan the more involved code sections, to find requirements that inspectors need to know but dont use on a regular basis. In this investigation elevator control system is designed with different control strategies. The elevator controller manufacture will integrate with the boards with either 24vdc or 110vac controller output voltages. Specifications prototype is controlled by bs2 safety circuitry instantaneous automatic and manual control included actuators and sensors feedback.
It is so, because control logic becomes more centralized in the source code. In this approach, all the functional and memory are concentrated in the. Introduction this paper is a phd project report for the course distributed embedded systems at carnegie mellon university. This project is developed by using a programmable logic controller plc to. The control circuit necessary for the operation of an automatic elevator which starts and stops at specified places and at specified time is presented. Prerequisite knowledge includes circuit analysis and design, analog and digital electronics, microprocessor. In the above picture, there are totally two floors. Pdf intelligent elevator control by ordinal structure. Design a plc program to execute elevator system in a 2 floor apartment using allen bradley plc programming. Dec 06, 2015 this lesson simulates logic gates in a simple and practical way. Plc in the designing of the elevator control system.
Four layer elevator control using programmable logic controller. When a visitor calls a resident via the telephone entry system and the resident grants the visitor access, data is sent from the telephone entry system to the 2348010 elevator control board. It is the most popular elevator design, in this system the car. Simple logic elevator nyu tandon school of engineering. Intelligent elevator control by ordinal structure fuzzy. The objective of this project is to design a controller for an elevator that serves three floors. Part of the advances in intelligent and soft computing book series ainsc, volume. Upon receiving this data, the elevator control board will respond in two different manners depending on the. Construction for peter coopers cooper union foundation building in new york began in 1853. A simulation study of elevator control of a building using. Pdf a simulation study of elevator control of a building using.
Limit switches are used to locate and stop the lift at each floor. Elevator control system of a building has been proposed in some literatures 123. In this project, you will design and implement a lift cotrol logic unit to serve a building containing eight floors. This fascinating book covers the period 18501900, beginning with early freight elevators, looking at the role of elevators in the development of skyscrapers, and ending with stateoftheart safety. An intuitive builtin user interface allows for rapid setup. In this book, i therefore wanted to give focus on using programmable logic controller to control the elevator, as plcs make the easy operation to control complex circuit. Digital logic designers build complex electronic components that use both electrical and computational characteristics. Programmable logic is a forgiving solution for control logic design because it allows easy modifications to be made without disturbing pc board layout. Elevator is an inseparable part of a building structure. Design of control circuit of an automated elevator. The system has simple peripheral circuit and the operation result showed that it enhanced the reliability and performance of the. The ladder logic for a stardelta motor control is quite simple, and that is one of the advantages of using a plc for motor control. If the call signal is larger than the current floor, the elevator will go up, or go down.
Practical information required for group control is stored in the systems memory as a knowledge database. Elevator control using plc s7300 and wincc flexible. One is inside the lift and other is outside the lift. The design and simulation of a fourcarselevator controller in a nine storey building is described in this paper. Very few works had been carried out that created logic. As an untrained user of elevators, it seems to me that you want three basic things from an elevator control panel. It allows to consider only transition graphs in order to understand the program logic or.
A history of the passenger elevator in the 19th century by lee e. If the project assignment is to design a logic circuit for the elevator in a three story building, and no further information is given, then i dont see how you can reasonably assume that there isnt someone or five someones already in the elevator going the other way when someone on the floor in the other direction calls the elevator or that. Scada system tutorial on design of five floors elevator. The low voltage power supply is for the controlling component and the fixtures to control the elevator except the items mentioned above, they use the single phase power.
Plc based elevator control page 3 vadodara institute of engineering kotambi 391510 certificate this is to certify that the pmms reports, submitted along with the project entitled plc based elevator control system has been carried out by krupal r bhoi, priyank r patel, dhaval s sukhanandi, avadhesh r. Controller, elevator, ladder, logic, programmable, scada. In this exercise, you are asked to add the required logic to implement a complete 2 floor elevator control system. Controlling water level in the plc ladder logic program duration.
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