Reliability verification system for precise positioning of construction tower crane and its hook position
A precise positioning and verification system technology, applied in satellite radio beacon positioning system, radio wave measurement system, measuring device, etc., can solve the problems of verification, lack of reliability of GNSS measurement results, etc., and achieve reliable and accurate hook position positioning Effect
Active Publication Date: 2021-06-22
北京北建大科技园发展有限公司
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Problems solved by technology
In the application of GNSS technology to the positioning of construction tower crane hoisting operations, it is assumed that the measurement results of GNSS are accurate, and there is a lack of verification of the reliability of GNSS measurement results, which makes the construction process of hoisting operations based on GNSS positioning potential problems. risk
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Embodiment approach
[0027] The motion state determination device 102 determines whether the current state of motion of the construction tower crane is that the moving trolley moves away from or approaches the tower body on the cross arm. According to one embodiment, the motion state of the construction tower crane is divided into two types:
[0028] 1. The swing arm of the tower crane (tower arm (cross arm) swings) and the moving trolley makes a luffing motion on the cross arm, that is, the movement away from or close to the tower body;
[0029] 2. The tower crane moves the trolley without swinging the arm;
[0030] For example, the motion state of the hoisting operation of the tower crane can be determined by determining the state of the operator's operating handle of the tower crane.
[0031] The constraint condition determination device 103 determines the reliability verification constraint conditions according to the current motion state of the construction tower crane when the moving trolle...
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The present invention relates to a construction tower crane and its hook position accurate positioning reliability verification system. The hook position is determined by the positioning data of a GNSS receiver on a mobile trolley of the construction tower crane. The system includes: a positioning data receiving device, receiving The positioning data of the GNSS receiver installed on the mobile trolley of the construction tower crane; the motion state determination device, which determines whether the current motion state of the construction tower crane is the amplitude movement of the mobile trolley on the cross arm away from or close to the tower body; constraints Determination device, when the mobile trolley moves away from or close to the tower body on the cross arm, determine the reliability verification constraints; determine the model determination device, according to the current motion state of the construction tower crane and the corresponding reliability verification constraints A reliability verification and judgment model is established; a reliability determination device is used to determine the reliability of the measurement results of the GNSS receiver.
Description
technical field [0001] The invention relates to the reliability verification of the accurate positioning of the hook position of a construction tower crane. Background technique [0002] At present, the requirements for positioning accuracy of the hook position are getting higher and higher, and at the same time, the requirements for positioning reliability are also getting higher and higher. The purpose is to realize the precise positioning of the hook position of the construction tower crane. With the advancement of science and technology, the positioning accuracy of surveying GNSS receivers is getting higher and higher. The improvement of accuracy comes from the improvement of the performance of components inside the GNSS receiver, as well as the improvement of various data processing algorithms and error correction models. But at the same time, in the complex and dynamic working environment of construction tower crane hoisting operations, the probability of GNSS receiver...
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IPC IPC(8): G01S19/23G01S19/42G01C1/00B66C13/46
CPCB66C13/46G01C1/00G01S19/23G01S19/42
Inventor 周命端王坚丁克良谢贻东周乐皆
Owner 北京北建大科技园发展有限公司