"Electromechanical drive Control" large operation-mechanical building Elevator control project (Phase 1)

"Electromechanical drive Control" large operation-mechanical building Elevator control project (Phase 1)

Hu Hengxiang Machine Android 1301

first, the system hardware interface definition

　　According to the operating characteristics of the elevator system, the hardware interface of the system can be divided into floor hardware interface, elevator internal hardware interface and power part hardware interface.

1.1 Floor Hardware interface

Each floor of the elevator has two buttons "upstream" and "downlink", there are two led digital tube respectively shows the two elevators on the floor, the digital tube has an arrow LED lights indicating the elevator running state (up, down, stop).

The two buttons are electrical switches that control the uplink and downlink of the elevator. Two led digital tube to display the elevator floor, you must be able to receive information on the floor of the elevator. The arrow LED lights need to receive information about the status of the elevator operation (upstream, downstream, or stop). Elevator floor information can be obtained by photoelectric sensor or travel switch, the running state of the descending on the ladder can be obtained by detecting the motor steering.

1.2 Elevator Internal interface

　　The elevator car has a total of 7 digital buttons from "1" to "7" to select the destination floor, with an LED light on each button indicating that the layer is selected. There is an LED digital tube showing the current floor, with "on" and "off" two buttons to manually switch the elevator door. "1" to "7" a total of 7 digital buttons require an interface to connect the electrical switch to the motor input control signal. The LED light above the button needs to be associated with the number button to display the selected floor number.

1.3 Power Part interface

　The power part mainly controls the motor running state. The "Up" "Down" button outside the elevator and the target floor number inside the elevator can be seen as the input signal of the motor. Each elevator by an AC asynchronous Inverter motor and inverter control, PLC to the frequency converter to send three switching signals: forward, reverse, stop.

Second, the system function definition2.1 Display of elevator operation status

　　The operating state of the elevator needs to be displayed on the floor panel and inside the elevator's interior panel to inform passengers of the information. Each floor of the elevator has two buttons "upstream" and "downlink", there are two led digital tube respectively shows the two elevators on the floor, the digital tube has an arrow LED lights indicating the elevator running state (up, down, stop). An LED digital tube in the elevator car shows the current floor.

2.2 Interaction with passengers

　　The elevator is a semi-automatic device, and passengers need to interact with the smooth, passengers need to tell the elevator where they want to go to the floor, elevators need to understand which floor passengers want to go. The "Up" "Down" row button on the floor Control panel and the target floor number button in the elevator car enable this function.

2.3 Status Detection function

　　Elevators need to clear their own operating state to smooth control of their own movement, but also need to display the state part in front of the passengers, so you need a status detection function. Including the current floor, elevator door open off state, motor speed and so on.

　　2.4 Behavioral decision function

　　When someone presses the uplink and downlink buttons on the floor, the elevator control system schedules an elevator to reach the passenger's floor as soon as possible. Elevator car in the floor after the delay of 2 seconds to open the elevator door, the elevator door opened after 10 seconds after the elevator door automatically closed, during this time if someone pressed the Close button immediately close the elevator door. In the elevator door close process, if someone in the outside press the same direction with 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.

　　The decision-making function depends on the elevator control system, the decision-making ability can be accomplished by the program designer, or it can be obtained by means of machine learning.

third, software function module decomposition and inter-module interface definition

　　According to the operation characteristics of the elevator, the SOFTWARE function module can be divided into the detection signal processing module, the Display function module, the motion control function module broadly.

The detection signal Processing module handles the status detection signal or the input signal from the passenger as an input port of the motor control signal, so there are two interfaces between the detection signal module and the Display function module for two-way transmission.

One of the signal sources of the motion control module is the detection signal processing module, because there should also be an interface between the two.

"Electromechanical drive Control" large operation-mechanical building Elevator control project (Phase 1)