A control method of door machine controller for shielded door

Abstract

The invention provides a gate machine controller for a shield gate and a control method implemented by the gate machine controller. The gate machine controller is characterized in that a central processing unit is connected with a unit controller by a hard wire and receives gate opening and closing commands from the unit controller via an asynchronous serial communication module; the central processing unit is connected with a master monitor by a CAN (controller area network) bus and transmits state and fault information of the gate controller to the master monitor. The control method includes controlling the central processing unit by the aid of rotational speeds and currents in a double-closed-loop manner, particularly, controlling a rotational speed ring by means of fuzzy-PID (proportion, integration and differentiation), controlling the rotational speed ring by means of fuzzy-PID when the quantity of rotational speed errors is high, and controlling the rotational speed ring by means of traditional PID when the quantity of rotational speed errors is low; adjusting a current ring by means of conventional PID; controlling a motor by means of PWM (pulse width modulation). Compared with the prior art, the gate machine controller and the control method have the advantages that the shield gate can be quickly started and can quickly run, the running speed of the shield gate is stable, and the shield gate is high in interference resistance.

Description

technical field [0001] The invention relates to a door machine controller for a screen door, in particular to advanced control of a brushless DC motor applied to a screen door machine, and belongs to the technical field of control equipment for a screen door machine of rail transit. Background technique [0002] With the rapid development of urban rail transit, the subway has become one of the most convenient, economical and efficient means of transportation for people to travel; at the same time, higher and higher requirements are put forward for the reliable operation of screen doors. The screen door is a glass door installed on the edge of the platform of the subway station. It separates the platform from the train operation area, and has the characteristics of improving the safety of the platform and reducing the investment in the station's environmental control system. The control algorithm of the subway screen door operator usually adopts conventional PID control. Due ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a door machine controller control method for shielded doors to solve the existing subway screen door door machine control algorithm in the prior art usually using conventional PID control, due to the non-linear parameters of the brushless DC motor and time Change, which makes the response speed of the shielded door slower, and because the traditional PID has a certain overshoot, the shielded door is unstable when running, and the anti-interference ability is not strong.

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