Method for detecting load swinging angle of crane

A detection method and crane technology, applied in the direction of measurement device, measurement angle, mapping and navigation, etc., can solve the problems of load swinging back and forth, load falling, etc., and achieve the effect of high adaptability, low detection power consumption, and low requirements.

Active Publication Date: 2014-06-18
SOUTHEAST UNIV
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AI Technical Summary

Problems solved by technology

Its main function is to use cables to lift and move heavy objects. The advantage of using flexible cables such as cables instead of rigid bodies is that the crane mechanism works lightly and the efficiency is improved; The wind, friction and other conditions that occur during this process will cause the load to swing back and forth. When the swing exceeds a certain limit, it may cause serious accidents such as load drop.

Method used

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  • Method for detecting load swinging angle of crane
  • Method for detecting load swinging angle of crane
  • Method for detecting load swinging angle of crane

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Embodiment Construction

[0020] The present invention will be further explained below in conjunction with the drawings.

[0021] A crane load swing angle detection method. The hook / load is connected to the mobile trolley on the crane body through a sling. Two or more wireless network fixed nodes are installed on the crane body, and a wireless network is installed on the hook / load. Network swing node: The swing node communicates with all fixed nodes respectively, and realizes the spatial position positioning of the hook / load based on the received signal strength index RSSI ranging technology, and finally calculates the spatial swing angle of the load.

[0022] Such as figure 1 As shown, the above method specifically includes the following steps:

[0023] (1) The fixed node / swing node continuously sends out network signals steadily;

[0024] (2) The swing node / fixed node receives and processes the network signal from the fixed node / swing node in real time, and uses RSSI ranging technology to obtain the distance...

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Abstract

The invention discloses a method for detecting a load swinging angle of a crane. A hoisting hook or a load is connected to a mobile trolley of a crane body through a hoisting rope; more than two wireless network fixing nodes are arranged on the crane body; a wireless network swinging node is arranged on the hoisting hook or the load and respectively communicates with all fixed nodes; the hoisting hook or the load can be spatially positioned on the basis of an RSSI (received signal strength indicator) distance measuring technology; finally, a spatial swinging angle of the load is calculated. The wireless network nodes adopted in the method disclosed by the invention have the advantages of low cost and convenience in installation, and the swinging situation of the load of the crane can be effectively detected, so that the crane can be safely and efficiently produced.

Description

Technical field [0001] The invention relates to a method for detecting the swing angle of a crane load, and relates to automatic control and wireless communication technology. Background technique [0002] With the continuous development of economy and society, cranes are becoming more and more indispensable in various engineering projects as a means of transportation, and they can be seen in construction sites (such as subways, high-rise buildings), docks and warehouse scheduling. Its main function is to use cables to lift and move heavy objects. The advantages of using cables such as flexible to replace rigid bodies are that the crane mechanism is light and efficient; the disadvantage is that when the crane is lifting or lowering the load during the movement, Wind and friction during this process will cause the load to swing back and forth. When the swing range exceeds a certain limit, it may cause serious accidents such as load drop. Therefore, it is necessary to control the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/16G01C1/00
Inventor 高丙团张罗马魏巍郎伊紫禾黄博然
Owner SOUTHEAST UNIV
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