Ultrasonic probe type anti-collision device for working platform

Abstract

The invention discloses an ultrasonic probe type anti-collision device for a working platform. The anti-collision device comprises ultrasonic probes, a probe signal processing module and a programmable logic controller (PLC), wherein the ultrasonic probes are mounted on the bottom surface, front surface, left side surface and right side surface of the working platform; the probe signal processing module is used for receiving mV-level voltage signals sent by the ultrasonic probes and converting the signals into controller area network (CAN) bus signals; and the PLC is used for receiving the CAN bus signals and controlling the normal operation, slow operation and stop operation of high-altitude operation equipment according to the signals. The system not only can prevent the working platform from colliding with an obstacle, but also can selectively stop the operation of the high-altitude operation equipment and constantly inform an operator of the distance between each surface of the working platform and the obstacle, thereby realizing intelligent safety control of the high-altitude operation equipment; the current detection range of the system is 0-2m, and completely meets the requirements of anti-collision safety detection on the working platform of any high-altitude operation equipment; and moreover, the system is convenient to mount, easy to debug, high in reliability and cheap in price.

Description

technical field [0001] The invention relates to a safety protection device on high-altitude operation equipment, which is used to prevent the working platform of the high-altitude operation equipment from colliding with obstacles, so as to avoid safety accidents and equipment damage. Background technique [0002] Due to visual blind spots or operating errors of aerial work equipment operators, the working platform is easy to collide with obstacles, which poses a threat to the safety of operators. The anti-collision device of the working platform is an important part of the intelligent control system of aerial work equipment, and generally has the following methods: [0003] (1) Touch-type travel switch: such as figure 1 , 2 As shown, this anti-collision device consists of a touch-type travel switch. Fix two feeler-type travel switches 2 on the outer corners of the lower edges of the left and right sides of the working platform 1, and trigger the switches when the feelers ...

AI Technical Summary

Problems solved by technology

This kind of photoelectric switch has a simple structure, easy installation, and no contact collision, but the photoelectric switch can only detect obstacles directly in front of it. The maximum divergence angle of each photoelectric switch is 1°, and the detection range is very limited, such as Figure 7 shown

In addition, the cost of this photoelectric switch is relatively high

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