Gate dislocation detection method and system

Abstract

The invention discloses a gate dislocation detection method, and the method comprises the following steps: respectively installing a gate dislocation identification signboard and a video processing terminal on gates on the left side and the right side, and calculating an initial first pixel difference and an initial second pixel difference in a video image of an initial position where the gates are completely closed; performing QR code recognition on a real-time video image acquired in the video processing terminal; if the recognized QR code information is preset QR code information, determining that the gate is closed; if the gate is closed, calculating a real-time first pixel difference mean value and a real-time second pixel difference mean value; if the real-time first pixel differencemean value is not equal to the initial first pixel difference or the second pixel difference mean value is not equal to the initial second pixel difference, determining that the gate is dislocated. Whether the gate is misplaced or not can be quickly and accurately judged.

Description

technical field [0001] The invention relates to a gate dislocation detection method and a detection system, belonging to the field of gate detection. Background technique [0002] The ship lock consists of a lock head with gates and valves, a lock chamber for ships, an upstream and downstream pilot channel for guiding ships into the lock chamber, a water delivery system for filling and discharging water in the lock chamber, and opening and closing machinery for gates and valves. and control system. The procedure for the ship to pass through the lock from the downstream approach channel is to use the water delivery system to make the water level in the chamber equal to the water level in the downstream approach channel, open the lower gate, the ship enters the lock chamber, close the lower gate, and pour water into the lock chamber When the water level is equal to the water level of the upstream approach channel, the upper gate of the upper gate is opened, and the ship enter...

AI Technical Summary

Problems solved by technology

As for the gate management is the key content of the safe operation management of the ship lock, the gate may be misaligned due to the influence of the ultra-high water pressure of the upstream and downstream water level difference during the long-term operation, resulting in the gate being unable to close completely and water leakage. Ships entering the lock chamber cannot pass through the raised water level and enter the upper reaches of the high water level. At the same time, due to water leakage, the water flow in the lock chamber may be too fast, and there is a risk of damage to the ship due to collision with the lock wall

[0003] In the existing technology, there are few technical application methods for the detection of gate misalignment, mainly laser alignment detection technology and manual detection

However, laser alignment detection technology has low detection accuracy and is easy to damage; while manual detection is time-consuming and labor-intensive, and is easily affected by the environment. In rainy and foggy weather, it cannot be detected

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