Data fusion technology-based dual-channel gate opening measuring instrument

Abstract

The invention discloses a data fusion technology-based dual-channel gate opening measuring instrument. The instrument comprises a touch screen, a programmable controller (including the Ladder Logic Programming Language), a rotary encoder, a laser range finder, a limit switch upper-limit input interface terminal, a limit switch lower-limit input interface terminal, a gate lift signal input interface terminal, a gate descending signal input interface terminal, a gate upper-limit signal output interface terminal, a gate lower-limit signal output interface terminal, a heavy fault alarm signal output interface terminal, a light fault alarm signal output interface terminal, a gate opening value output communication interface plug and an equipment box body. The data fusion technology-based dual-channel gate opening measuring instrument of the invention is provided with two sensors with different principles; the failure of one sensor does not affect gate opening information collection work; and therefore, the reliability of a gate automation control system can be greatly improved.

Description

technical field [0001] The invention relates to a measuring instrument, in particular to a dual-channel gate opening measuring instrument based on data fusion technology. Background technique [0002] 1. The current gate opening measuring instruments mainly include coded gate opening meters and laser range finders. Due to the harsh on-site working environment of the gate opening measuring instruments, the failure rate of the optoelectronic devices in these instruments is very high, which makes the entire The gate opening measuring instrument was unable to work, resulting in failure of the entire gate automation control system, and even disasters. [0003] 2. During the rising and falling process of the gate, there are two different curves due to the different force of the steel wire rope; the steel wire rope on the drum is wound along the drum with a certain curvature, and the height of the gate is not linearly related to the rotation angle of the drum. ; The length of the ...

AI Technical Summary

Problems solved by technology

These reasons lead to a large measurement error of the coded gate opening meter and the need for frequent calibration and correction of the equipment, which increases the workload of maintenance personnel and equipment maintenance costs

[0004] 3. The laser rangefinder is based on the principle of optical distance measurement. The strong sunlight and the water mist generated by the water-filled chamber of the gate will have a great impact on its measurement accuracy; the dust, dirt and moisture of the laser transmitter and the launch plate It will cause the deviation of its measurement data; during the operation of the gate, the laser ranging line between the laser transmitter and the reflector is not completely perpendicular to the horizontal plane, which will also affect the measurement accuracy

These reasons lead to errors in the measurement of the laser rangefinder and the need for frequent calibration and correction of the equipment

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