Description: 1. There is an upper and lower request switch at the entrance of the elevator, and the elevator has a stop request switch with passengers arriving at the level.
2. Equipped with the location indicator of the elevator and the operation mode of the elevator (up or down) indicating device;
3. Elevator per second floor;
4. The elevator to floor after stop request, after 1 second elevator door open (the door indicator), open the door after 4 seconds, elevator doors closed (open lamp out) elevator continues to run, after a request signal until after the last stop in the current layer;
5. Can remember all the request signals inside and outside of the elevator, and respond according to the order of elevator operation; each request signal is retained until the execution;
6. The elevator operation rules, when the elevator is in rising mode, only response to higher than the location of the elevator go upstairs request signal, top-down execute them one by one, until the last upstairs, the request has been completed if top down requests, directly up to with the top floor downstairs request, briefly and then enter the decline model. When the elevator is in descending mode, it is the opposite of the ascending model.
7. The initial condition of the elevator is open.
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