Switch machine indication gap displacement monitoring device based on linear array image sensor

Abstract

The invention relates to the field of monitoring railway signal devices and provides a switch machine indication gap displacement monitoring device based on a linear array image sensor. The switch machine indication gap displacement monitoring device overlays gap marks of a fixed marker post and a movable indication rod together to form a gap image which is read by the linear array image sensor. Objects of different properties can be distinguished by different grayscales, and the change of the grayscale of a one-dimensional image indicates the edge of the gap of the fixed marker post or the movable indication rod; a grayscale curve is read and processed so that a position of the fixed marker rod in the gap of the movable indication rod can be conveniently obtained, and the displacement of a switch machine indication gap relative to the fixed marker post can be detected; the displacement data is transmitted to a computer in a machine room through a field bus with a power supply; the computer is connected with all switch machine indication gap detectors of a railway station; and therefore, according to the switch machine indication gap displacement monitoring device based on the linear array image sensor, disclosed by the invention, the monitoring in the displacement of the switch machine indication gap is realized.

Description

technical field [0001] The device of the invention relates to the monitoring field of railway signal equipment, and is a device for monitoring the position displacement of a switch machine indication gap. Background technique [0002] The adjustment of the gap position of the switch machine has always been an important part of the electrical maintenance work. When the ballast bed changes or the track moves, the notch position of the switch machine will change. If the switch is not adjusted in time, the inspection column cannot be dropped, the switch cannot give indication information, the signal cannot be opened, and the train cannot pass. The switch machine gap monitoring device can monitor the gap position for 24 hours. When the gap deviates to a critical position, the monitoring device will give an early warning signal. Therefore, the switch machine gap monitoring device is an important basic equipment to realize the state maintenance of electrical services. Most gap de...

AI Technical Summary

Problems solved by technology

Most gap detection devices output switching information, only telling whether it is good or not

It is not possible to directly view the adjustment status of the gap, such as the deviation

A small number of devices use video image sensors to check the position of the switch machine gap very intuitively. However, video transmission requires special cables, and each set of turnouts requires independent cables. The high cost cannot be popularized.

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