Spatial positioning method and device for bridge crane

Abstract

The invention relates to the technical field of hoisting equipment, in particular to a spatial positioning device for a bridge crane. The spatial positioning device comprises an all-in-one machine, a microstructure optical fiber, an optical fiber fixing device, a wireless transmitting device and a control center of the crane; the signal output end of the all-in-one machine is electrically connected with the signal input end of the wireless transmitting device, the wireless transmitting device realizes real-time data transmission with the control center of the crane through a wireless communication technology, the microstructure optical fiber is electrically connected to the signal input end of the all-in-one machine, a plurality of sensing nodes are etched on the microstructure optical fiber, and the plurality of sensing nodes are distributed on the microstructure optical fiber at equal intervals. The invention further discloses a spatial positioning method for the bridge crane. The distributed acoustic sensing (DAS) system based on the microstructure optical fiber is applied to spatial positioning of the crane, the cost of the system is greatly saved, the complexity of the sensing system is reduced, and the spatial positioning method has the advantages of being high in electromagnetic interference resistance, long in sensing distance and the like.

Description

technical field [0001] The invention relates to the technical field of lifting equipment, in particular to a space positioning method and device for a bridge crane. Background technique [0002] The bridge crane is a lifting device that is placed horizontally over the workshop, warehouse and stockyard for material lifting. Because its two ends are located on tall cement columns or metal supports, it is shaped like a bridge. The bridge frame of the bridge crane is laid along the The rails on the elevated sides run longitudinally, which can make full use of the space under the bridge to lift materials without being hindered by ground equipment. It is a kind of lifting machinery with the widest range of use and the largest number. With the rapid development of industrial automation The development of the crane has put forward higher and higher requirements for the accurate position of the crane material lifting. Since the crane is a special equipment, it has higher requirements...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned shortcomings in the prior art, the present invention provides a space positioning method and device for bridge cranes, which solves the problem of installing an encoder on the crane for positioning, which is easily affected by environmental electromagnetic interference, and the wheel slipping or hanging in the air will seriously affect the positioning. The accuracy of traditional electrical sensors has the problems of poor anti-electromagnetic interference, limited signal transmission distance, and high cost of forming a sensor network.

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