Tower crane hook safe state monitoring device and control method

Abstract

The invention provides a tower crane hook safe state monitoring device and a control method. The monitoring device comprises a data processing unit, a three-dimensional user interactive interface, a motor rate detector, a motor brake, a barrier distance sensor, a hanging object plane geometric dimensioning monitoring device and a hanging object gravity sensor; the barrier distance sensor, the hanging object plane geometric dimensioning monitoring device, the hanging object gravity sensor, the motor rate detector, the motor brake and the three-dimensional user interactive interface are all connected with the data processing unit; the control method includes seven steps; and the tower crane hook safe state monitoring device and the control method have the beneficial effects that the position condition of barriers around a hook can be judged according to the sensor; and through data analysis and processing, a three-dimensional model of a hooked object and the barriers is built, the hooked object and the barriers are visually displayed to a tower crane operator through the three-dimensional user interactive interface, accidents caused by wrong selection of reference substance are prevented.

Description

technical field [0001] The invention relates to the field of construction crane machinery, and relates to a monitoring device and a control method for the safety status of hanging objects of a tower crane. Background technique [0002] Tower cranes are one of the main construction machines for modern industrial and civil buildings. The performance advantages of tower cranes in terms of lifting height and working range make them widely used in high-rise building construction. [0003] Due to the high-altitude operation characteristics of tower cranes, there are many unsafe factors induced by them. In the process of hoisting objects, the high-rise tower cranes cannot timely and effectively avoid obstacles due to the operator's sight. Some tower cranes are equipped with cameras and other equipment. Although the video screen provided by the auxiliary operation device can observe the hanging object, it cannot display the size of the hanging object in data and the actual distance...

AI Technical Summary

Problems solved by technology

In the process of hoisting objects, the high-rise tower cranes cannot timely and effectively avoid obstacles due to the operator's sight. Some tower cranes are equipped with cameras and other equipment. Although the video screen provided by the auxiliary operation device can observe the hanging object, it cannot display the size of the hanging object in data and the actual distance between the hanging object and the obstacle, which may easily lead to safety hazards caused by the misjudgment of the distance by the operator. The occurrence of the accident, the invention patent of the authorized announcement number CN204906535U "a wireless video monitoring device for monitoring the position of the hook of the tower crane" also monitors the position of the hook according to the video screen, and the operator needs to use the reference objects around the video screen to judge The distance between the hanging object and the obstacle is not intuitive enough to observe the hanging object, which brings inconvenience to the operation. The status data of the hanging object cannot be digitized, which causes inconvenience to the later control operation

Through the above summary, it is found that the existing tower crane video surveillance, due to the single camera screen, has caused a lot of inconvenience to the driver's operation, and it is easy to induce safety accidents in the dead angle of the lens.

Therefore, relevant national and local administrative departments have strict technical requirements for tower crane operators, but it is still difficult to avoid large-scale accidents caused by visual impairment

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