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A method for detecting the load swing angle of a 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 cost reduction.

Active Publication Date: 2016-06-29
SOUTHEAST UNIV
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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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  • A method for detecting the load swing angle of a crane
  • A method for detecting the load swing angle of a crane
  • A method for detecting the load swing angle of a crane

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Embodiment Construction

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

[0021] A method for detecting the swing angle of a crane load. The hook / load is connected to a mobile trolley on the crane body through a sling, more than two wireless network fixed nodes are installed on the crane body, and a wireless network node is installed on the hook / load. Network swing nodes; the swing nodes communicate with all fixed nodes respectively, realize the spatial position positioning of the hook / load based on the received signal strength index RSSI ranging technology, and finally calculate the spatial swing angle of the load.

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

[0023] (1) Fixed nodes / swing nodes continue to send out network signals stably;

[0024] (2) Swing nodes / fixed nodes receive and process network signals from fixed nodes / swing nodes in real time, and use RSSI ranging technology to ...

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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 load swing angle of a crane, and relates to automatic control and wireless communication technologies. Background technique [0002] With the continuous development of economy and society, cranes are becoming more and more indispensable as a means of transportation in various engineering projects, and can be seen in construction sites (such as subways, high-rise buildings), docks and warehouse dispatching. 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 range exceeds a certain limit, it may cause serious accidents such as the load falling. Therefore, to carry out anti-swing control on the load, it is req...

Claims

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Application Information

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Patent Type & Authority Patents(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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