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Attached self-lifting scaffolds synchronous movements measuring method and device based on transmitted light of optoelectronic measurement

机译：基于光电测量的透射光的附着式自举式脚手架同步运动测量方法及装置

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摘要

Attached self-lifting scaffolds (ASS) are widely used in high-rise building construction. Machine position load will be re-distributed with imbalance when ASS are moved asynchronously, causing structural members and mechanical parts to to overload and form incipient faults. In order to achieve synchronous movement of ASS, an integrated infrared optoelectronic sensor was devised to measure liquid level. A measuring instrument utilising the transmission of light through opaque liquid in a connected pipe is proposed based on the infrared optoelectronic sensor. A dual-side model of this method is presented in this paper as a possible solution to achieve synchronous movement of scaffolds. With the dualside model algorithm, the lifting or dropping length difference (movement difference) can be computed by detecting the liquid level in the connected pipe, and synchronous movements of different machine positions can be maintained. The experimental results showed that a measurement accuracy of 1.0 mm can be obtained and movement differences can be limited to within 30 mm (as per Chinese construction specifications), this provides a predictive control to the movements of ASS and reduce the safety risk in high-rise building construction. Field application in a building construction indicated that the sensors are stable and suitable for the ASS system.
机译：附着的自升式脚手架（ASS）被广泛用于高层建筑中。当ASS异步移动时，机器位置负载将不平衡地重新分配，从而导致结构构件和机械零件过载并形成初期故障。为了实现ASS的同步运动，设计了集成的红外光电传感器来测量液位。基于红外光电传感器，提出了一种利用光通过连接管中的不透明液体的传输的测量仪器。本文提出了该方法的双面模型，作为实现脚手架同步移动的一种可能解决方案。使用双面模型算法，可以通过检测连接管道中的液位来计算提升或下降长度差（运动差），并可以保持不同机器位置的同步运动。实验结果表明，可以达到1.0 mm的测量精度，并且运动差异可以限制在30 mm以内（根据中国建筑规范），这为ASS的运动提供了预测性控制，并降低了高上升建筑施工。在建筑物中的现场应用表明传感器稳定且适用于ASS系统。

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