Control system and method of turnout

Abstract

The invention discloses a turnout and a control system and method thereof. The control system comprises a servo motor, an encoder and a servo controller, wherein the servo motor is used for driving the turnout to be switched; the encoder is arranged on an output shaft of the servo motor, and is used for obtaining the number of pulses during the operation process of the servo motor; and the servo controller is correspondingly connected with the servo motor and the encoder, the servo controller is used for controlling the servo motor according to the number of target pulses and the number of thepulses during the operation process of the servo motor to carry out the closed-loop control over the speed and position of the turnout. Therefore, the precise control over the turnout is achieved, and the structure is simple and the reliability is high; and at the same time, the number of applied limiting switches is effectively reduced, and the problems that the installation and the wiring are difficult and the later maintenance is difficult are greatly solved.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a control system for a turnout and a control method for a turnout. Background technique [0002] A turnout is a line connection device that allows rolling stock to transfer from one track to another. Through the turnout, the passing capacity of the line can be fully utilized. For example, for a single-track railway, the train can be separated by laying a turnout. [0003] Turnouts can include single and double turnouts. Such as figure 1 As shown, the common ordinary single-opening turnout can be composed of three parts: a switch, a connecting part, a frog and a guard rail. The switch includes a basic rail, a switch rail and a switch machine. When the rolling stock is transferred from track A to track B, the switching machine is controlled to move the switch rail, the switch rail 1 is closely attached to the basic rail 1, and at the same time the switch rail 2 is separated ...

AI Technical Summary

Problems solved by technology

Usually, in order to ensure the precise positioning of the turnout, many limit switches are set at the corresponding positions of the turnout. Due to the harsh environment of the turnout, the limit switch is easy to be damaged and has low reliability. At the same time, due to the large number of limit switches, the limit switch There are many connecting wires between the switch and the control cabinet, which not only leads to cumbersome wiring during installation, but also increases the difficulty of later maintenance

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