On-line monitoring and early warning system and method of tower crane destabilization based on ultrasonic sensing network

A tower crane and ultrasonic sensing technology, applied in cranes and other directions, can solve the problems of reducing the working efficiency and safety level of the tower crane, increasing the labor intensity of the tower crane driver, and many monitoring parameters, so as to improve the instability monitoring level and reduce the Overturning accident, the effect of strong anti-interference ability

Inactive Publication Date: 2011-06-08
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology

This monitoring method not only monitors many parameters, but also increases the labor intensity of the tower crane driver, greatly reducing the work efficiency and safety level of the tower crane

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  • On-line monitoring and early warning system and method of tower crane destabilization based on ultrasonic sensing network
  • On-line monitoring and early warning system and method of tower crane destabilization based on ultrasonic sensing network
  • On-line monitoring and early warning system and method of tower crane destabilization based on ultrasonic sensing network

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Embodiment Construction

[0031] The study found that although there are many factors that cause the overall instability of the tower crane, in terms of manifestations, the overall instability is usually closely related to the abnormal swing and twisting of the upper part of the tower crane. From the analysis of steel structure theory, as a large steel structure, tower crane is different from large steel structures such as bridges, towers, and derricks. It is constantly moving, and its upper structure (tower arm and tower body) is a low-frequency, large Amplitude of a random vibrating system. Due to the wind load and ground vibration during actual use and shutdown, the tower top swing can reach more than 300mm, and the tower top swing can reach more than 800mm when lifting heavy objects, and the swing direction and amplitude are random.

[0032] In order to solve the problem of tower crane instability monitoring, the inventors of the applicant proposed a new method of using multi-ultrasonic sensor fusi...

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Abstract

The invention discloses an on-line monitoring and early warning system and a method of tower crane destabilization based on an ultrasonic sensing network, a multi-ultrasonic sensor integration technology is adopted for swing and wring monitoring of a tower crane superstructure, the integral destabilization information of a tower crane is further obtained, and a tower crane driver is informed of possible destabilization states in time. The system comprises a master controller module, a monitoring point module and a reference point module which are communicated in a mode of wireless networks, and the distance between the monitoring point module and the reference point module is measured by adopting an ultrasonic ranging principle. The system and the method solve a problem of destabilizationstate monitoring of the tower crane and have the characteristics of strong anti-interference capability, good real-time performance as well as simple and easy use, the labor intensity of the tower crane driver is effectively reduced, the monitoring level of tower crane destabilization is improved, and the occurrence of overturn accidents of the tower crane is reduced, thereby the tower crane can operate with safety and high efficiency.

Description

technical field [0001] The invention relates to a tower crane safety monitoring system, in particular to an ultrasonic sensing network-based online monitoring and early warning system for tower crane instability and an online monitoring and early warning method using the system. Background technique [0002] Tower crane (hereinafter referred to as tower crane) is the most widely used type of lifting machinery in the construction industry. It is mainly used for horizontal and vertical hoisting on construction sites. Its working characteristics are high lifting height and large working range. Operation. In recent years, with the rapid development of the national economy and the expansion of the construction industry, tower cranes have created good economic and social benefits. [0003] Due to the development of urban construction and the increase of high-rise building structures, the full load rate of tower cranes has increased, and the work has become more busy. Major accide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/88
Inventor 谷立臣闫小乐
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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