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I need to build an advaced control system for an elevator, whereas there is a cabinet (elevator) inside a big box (which stands for a building) which is devided into 4 flours, each flour with buttons to call the elevator, and an LCD, and using sensors on each flour to detect the position of the cabinet, and to see whether the cabinet is exactly on a certainn flour or between 2 flours, my question is how to use these sensors, and what kind of sensors is needed to achieve that and how to interface them to PIC16f84a , and also how should the cabinet move between flours, as is what kind of actuators is used for such system (I guess its a DC motor?) , and how is it controlled and interfaced to PIC 16f84a, thx for help
ya is is really nessesary for me too i am also doing such kind of project ithink we can monitor dc motor time by adjsting with floor length.
u can use limit switches. its very easy to interface with any micro controller also as they are just switches.
they can give either high or low output when switch is pressed by any object like elevator.
u can use stepper motor or DC gear motor of very low RPM.
to open or close elevator door u can use servo motors
that is so awesome ,thank you it is alot to me how about calling button and destination selection the whole number of swith 4 limit swith like sensor .4 calling swith, how about destination selection swich?? and the other did you think microcontroller have enough memory space if this project incorporate with some software to monitor the whole elevator movement.
an elevator control system is one of the best example for learning programming, logic and embedded system because it includes all
key pad interfacing, display interfacing, motor control, sensors etc all. you can add many different intelligence like
auto door open/close when person comes in front
automatic light-fan On/Off as per number of persons
excess weight error
etc so many things you can think of
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