A stage boom height monitoring system and monitoring method thereof

Abstract

The invention relates to the field of grating sensors and provides a stage suspender height monitoring system and a monitoring method thereof.The system comprises a sound wave receiving unit, a sound wave emission unit and an optical fiber grating sensor.The sound wave emission unit comprises a single-chip microcomputer, an emission driving circuit and a directional transmitting transducer which are sequentially connected.The sound wave receiving unit comprises a cantilever beam, a shell and a cover installed on the shell and provided with a filter screen.The optical fiber grating sensor is arranged on the cantilever beam and connected with an optical fiber grating demodulator, the optical fiber grating demodulator is connected with a computer, and the directional transmitting transducer and the sound wave receiving unit are fixed to a suspender.By means of the system and method, the height of the stage suspender can be precisely monitored in real, the structure is simple, and use is convenient.

Description

technical field [0001] The invention relates to the field of grating sensors, in particular to a stage suspender height monitoring system and a monitoring method thereof, which are used for real-time monitoring of the height of the suspender. Background technique [0002] The stage boom is a kind of lifting equipment used to hang lights, curtains, scenes, performance hangers and special performance equipment on the stage. [0003] According to the stage setting requirements, a single suspender must be accurately lifted to a certain height (and the suspenders are consistent from left to right), and multiple suspenders must coordinate with each other to maximize the stage effect. In stage performances, it is often required to operate multiple booms at the same time. Due to the tight transition time between venues and the narrow space for visual inspection, the operation is extremely difficult and the accuracy is difficult to guarantee. This requires the invention of a real-tim...

AI Technical Summary

Problems solved by technology

In stage performances, it is often required to operate multiple booms at the same time. Due to the tight transition time between venues and the narrow space for visual inspection, the operation is extremely difficult and the accuracy is difficult to guarantee. This requires the invention of a real-time monitoring device for the height of stage booms. , to provide technical support for the highly automated operation of the stage boom

[0004] There are two main methods for monitoring the height of the boom: one is to use a multi-turn potentiometer and install it on the output shaft of the boom reducer through a reduction gear. Although this monitoring device is cheap, its detection accuracy is low and the error The error is as high as 5-10cm; the second is to use the rotary encoder to monitor, but the equipment is expensive, and the performance requirements of the acquisition equipment matched with it are relatively high, and the price of the acquisition equipment is also relatively high, thus increasing the manufacturing cost of the entire monitoring system

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