The first stage of large operation of electromechanical transmission control

The first stage of large operation of electromechanical transmission control

A System hardware Interface Definition
1. Elevator operating interface: labeled with 1-7 numbers of buttons (each button has an LED light, press the button light is on), open doors, doors and emergency alarm buttons and floor indicators of the LED digital tube. The opening and closing of the elevator door requires two stroke switches, and the information that receives the switch door can directly control the door switch.

2. Building operation interface: 2-6 layer has uplink and downlink button, 1 layer only upstream, 7 layer only the downside. Each button is connected to an LED light (which is lit by pressing the button light). Two LED digital tube displays the floor.

3. Power-related hardware: Each elevator is equipped with an AC asynchronous frequency conversion motor and inverter, motor interface connected to the motor positive and negative switch, driving the elevator downward. The frequency converter stays the interface like the motor transmits the acceleration deceleration pauses the information, and receives the control information from the PLC.

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Two system function definition

1. When someone (one or more people) presses the uplink down button on the floor, the control system needs to calculate the minimum stay method and get everyone to the floor as soon as possible.

2. Elevator after reaching the floor after 2s open door, elevator door opened after the delay of 10S automatic shutdown, in the elevator door closed process if someone in the outside press the same direction as the elevator button or someone in the car press the door button, the elevator door opened again, once the elevator door closed, then no longer respond to the button.

3. Floor Elevator Port led Digital tube can show elevator on the floor, upstream and downstream led Light Normal indication, the button corresponding to the prompt LED The light normally shows if the button is pressed.

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three . decomposition of software function modules and definition of interface between modules

The software function module can be divided into LED Display Module , Elevator downlink Module , elevator Open and close module

1.LED The display module consists of three interfaces , one interface accepts the travel switch on each floor to determine the number of floors of the elevator , an interface accepts the elevator downlink information , an interface accepts key information.

2. the elevator on the downlink module consists of three interfaces, an interface to the plc Transmission of each floor of the key information, an interface received from the plc The control information is calculated by the priority, and an interface transmits the control information to the motor.

3. the open-close module includes two interfaces, a start-stop message that accepts the floor key, and a message that accepts the key in the elevator.

The first stage of large operation of electromechanical transmission control