An anti-collision monitoring system for multiple cranes based on optical coding and wireless network

Abstract

The invention discloses a multi-crane anti-collision monitoring system based on optical encoding and wireless networks. The multi-crane anti-collision monitoring system comprises hosts, optical encoders and frequency converters, which are arranged on all cranes. The multi-crane anti-collision monitoring system is characterized in that a plurality of hosts are connected by network devices through the wireless local area networks so as to form an anti-collision protection system working when a plurality of cranes are in cross operation; the hosts are provided with collision risk areas of crane booms and alarm or shutdown protection programs, so that when the crane booms enter the risk areas, the hosts give alarms or send out shutdown protection signals to the frequency converters, thus real-time monitoring and dynamic display of the plurality of cranes are realized. Compared with the prior art, the multi-crane anti-collision monitoring system has the advantages of being capable of realizing anti-collision protection on cross operation of the plurality of cranes, high in precision and low in cost, effectively monitoring the space states of the booms, effectively preventing the booms from colliding with surrounding objects in the operation process, improving the production safety and efficiency, and reducing the operating intensity of a driver.

Description

technical field [0001] The invention relates to the technical field of industrial automation control, in particular to an anti-collision monitoring system for multiple cranes based on optical coding and wireless network. Background technique [0002] Portal cranes are used for loading and unloading workpieces in shipyards or ports. They are important production equipment in shipyards, mainly for lifting, luffing, rotating and operating mechanisms. The crane's rotating mechanism and luffing mechanism drive its boom, which can rotate in the horizontal direction and swing in the vertical direction, and the running mechanism drives the portal crane to move along the ground track. In recent years, the density of equipment in factories has been increasing year by year. There are often multiple cranes operating at the same time in the same area, and their work spaces overlap each other, which is prone to collisions. If the cranes collide with each other, it is easy to cause an acc...

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Problems solved by technology

[0003] The problem existing in the existing technology is: the positioning accuracy of civilian-grade GPS is generally >10m. To improve the accuracy to m-level, it is necessary to build a ground base station. The construction cost of the ground base station is obviously higher than the cost of the portal crane control system , the signal of satellite radio communication is easily affected by the weather, and the satellite signal is susceptible to interference, and the position monitoring of the operating mechanism, rotating mechanism and luffing mechanism of each portal crane needs to collect and transmit the spatial positions of multiple portal cranes data

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