Engineering machine operation target positioning method and system

Abstract

The invention discloses an engineering machine operation target positioning method and system. The method comprises the following steps: (1) a reference station collects the satellite positioning information in real time as the current measured value D0, and then sends the D0 to a first moving station and a second moving station; (2) the first moving station and the second moving station individually collects the satellite positioning information in real time as the current measured value D1 and D2, and then a realtime dynamic differential treatment is carried out on between D0 and D1 and between D0 and D2 respectively so as to obtain the relative coordinate information of the first moving station and the second moving station; (3) a crane calculation unit determines the extend length, pitch angle, and rotation angle of a lifting arm according to the relative coordinate information of the first moving station and the second moving station; (4) finally the crane controls the lifting arm to move to the lifting position of an object to be lifted and lift the object according to the calculated extend length, pitch angle, and rotation angle of the lifting arm. The provided method and system can largely improve the precision of positioning on operation target, moreover the lifting arm is automatically traced, and the error and risk brought by eyeballing are avoided.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a method and system for positioning a construction machinery operation target. Background technique [0002] During the construction operation of the crane, especially when it is hoisted at a long distance or when it is over a certain obstacle, due to the error of the operator's vision, it is impossible to accurately judge the exact position of the object being hoisted. If there is a deviation between the hoisted object and the crane hook in the vertical direction, the phenomenon of "slanted pull" will occur, causing damage to the crane, or even a tipping accident. [0003] At present, the lifting of large heavy objects often requires careful on-site investigation and calculation. Estimate the working conditions such as the extension length of the boom and the pitch angle of the boom in advance. Moreover, at the job site, it is necessary to command and dispatch the site pe...

AI Technical Summary

Problems solved by technology

[0005] First, the wireless positioning accuracy of the target point is low

Since the high-precision wireless positioning is not open, only civilian pseudo codes are available, and the positioning accuracy of the target point is about 10 meters. When calculating the extension length of the boom and the pitch angle of the boom, the error with the actual size is too large, and it is impossible to accurately judge the hoisted the exact location of the object

If there is a deviation between the hoisted object and the crane hook in the vertical direction, the phenomenon of "slanted pull" will occur, causing damage to the crane, or even a tipping accident.

[0006] Second, the execution action of the boom is not clear

When hoisting at a long distance or working over a certain obstacle, due to the error of the operator's vision, it is impossible to accurately determine the exact position of the object being hoisted

The lifting height and lifting angle are all judged by visual inspection and experience to increase the risk

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