Method, device and system for measuring deflection of arm support

A measurement method and boom technology, applied in the field of data processing, can solve the problems of low measurement accuracy, high measurement cost, cable layout, heavy sensor workload, etc., achieve high measurement accuracy, simple measurement method, and avoid heavy workload big effect

Active Publication Date: 2012-11-28
ZOOMLION HEAVY IND CO LTD
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Problems solved by technology

[0005] The invention provides a method, device and system for measuring the disturbance of an engineering boom, which is used to realize the non-contact measurement of the disturbance of the engineering boom, thereby avoiding the large workload of arranging cables and sensors in the existing measurement methods, and the measurement Higher cost and lower measurement accuracy

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  • Method, device and system for measuring deflection of arm support
  • Method, device and system for measuring deflection of arm support
  • Method, device and system for measuring deflection of arm support

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Embodiment Construction

[0032] The specific implementation of a method, device and system for measuring the deflection of a jib provided by an embodiment of the present invention will be described below with reference to the drawings in the description.

[0033] The measurement method of the boom deflection provided by the embodiment of the present invention, such as figure 1 shown, including the following steps:

[0034] S101. Continuously acquire images taken simultaneously by at least two cameras on the marking points respectively set on the multi-section jib, and respectively determine the three-dimensional coordinates of the pixel points in each image in the world coordinate system;

[0035] S102. According to the three-dimensional coordinates of each pixel in each image, continuously splice the images captured by at least two cameras simultaneously into one frame of image;

[0036] S103, using a particle filter tracking method to identify the marking points set on the multi-section jib in each...

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Abstract

The invention discloses a method, device and system for measuring the deflection of an arm support. The method comprises the following steps of: continuously acquiring images, which are simultaneously photographed by at least two cameras, of mark points which are respectively arranged on the multi-section arm support, and respectively determining three-dimensional coordinates of pixel points of the images in a world coordinate system; continuously splicing the images which are simultaneously photographed by at least two cameras into frame images according to the three-dimensional coordinates of the pixel points of the images; identifying the mark points arranged on the multi-section arm support from the spliced images by using a particle filtering and tracking method, and determining three-dimensional coordinates of the mark points; and calculating the deflection of the arm support according to the three-dimensional coordinates of the mark points in the spliced images, thereby obtaining a measurement result on the deflection of the arm support. According to the method, the device and the system, a manner of non-contact measurement is utilized, so that the measurement manner is simple and convenient, the measurement accuracy of is higher, the real-time performance is good, and the deflection of the arm support can be measured promptly and quickly.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a method, device and system for measuring the deflection of a boom. Background technique [0002] When the boom system of construction machinery is working, under the action of self-weight load, working load, wind load, etc., the boom will bend and deform like a fishing rod. If the deformation is too large, there is a danger of folding the arm. Therefore, real-time measurement The amount of deflection and deformation of the boom system of construction machinery is very important. [0003] There are many methods for measuring the deflection of the jib. For example, sensors and cables are respectively installed on the multi-section jib of the jib. When measuring, the elongation of each section of the telescopic The length is superimposed on the initial length of the boom to obtain the total length of the boom after extension. This method requires pre-installing cables and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
Inventor 涂宏斌付玲任会礼钟懿
Owner ZOOMLION HEAVY IND CO LTD
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