Amplitude limiting device and method

Abstract

The invention discloses an amplitude limiting device and an amplitude limiting method. The amplitude limiting device is used for calculating and limiting the operating amplitude of a telescopic arm of a telescopic arm frame type construction machinery vehicle, and comprises an ARM (Advanced RISC Machine) controller module, a tilting angle sensor module, a length measurement sensor module and a rotary coder module, which are connected through a CAN (Controller Area Network) bus. The amplitude limiting method comprises the following steps: obtaining the pitching angle of the telescopic arm, the rotary position angle of the telescopic arm and the arm length of the telescopic arm; according to the structural form, the pitching angle and the arm length of the telescopic arm, calculating the operating amplitude of the telescopic arm; according to the rotary position angle, looking up a corresponding amplitude limiting critical value in a pre-stored amplitude limiting critical value corresponding table; and according to the comparison result of the operating amplitude and the amplitude limiting critical value, limiting or warning the operating amplitude of the telescopic arm to guarantee the working safety of the construction machinery vehicle and avoid the roll-over accident.

Description

technical field [0001] The invention relates to the technical field of information processing, in particular to an amplitude limiting device and method, which is a safety protection device designed and realized by embedded technology and field bus technology for calculating and limiting the operating range of a telescopic arm, and is suitable for The anti-overturn safety control of boom-type construction machinery vehicles, especially the safety limit of the operating range of telescopic boom aerial work vehicles and telescopic boom cranes. Background technique [0002] The telescopic boom type is a typical construction machinery boom type, which can make the structure of the whole boom system more compact, especially in cranes and aerial work vehicles, and its application is increasing. Generally speaking, the telescopic arm frame is composed of a rotary table, a luffing joint, and a telescopic joint, so that the arm frame has better flexibility and wider reachable space, b...

AI Technical Summary

Problems solved by technology

In addition to poor measurement accuracy, this method also has certain potential safety hazards. Once the cable is broken or the winch is not recovered in time during the operation, there will be a big difference between the measured length and the actual length or even errors, which cannot reflect the actual expansion and contraction. length, leading to the loss of basis for calculating the operating range, and bringing the hidden danger of tipping accidents

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