Wireless low-power-consumption supporting axial force servo system

Abstract

The invention relates to a wireless low-power-consumption supporting axial force servo system, and the system comprises a supporting head assembly, a cloud management platform, a remote monitoring machine and a mobile client. The supporting head assembly and the steel support are connected and then installed on the foundation pit support structure. A jack, a hydraulic station, a controller, a Cat1 / NB-IoT communication module, a displacement sensor, a power system and a pressure sensor are integrated in the supporting head assembly, the jack is connected with the hydraulic station through an oil way, the pressure sensor is installed on the oil way, the controller is connected with the hydraulic station, the Cat1 / NB-IoT communication module, the displacement sensor and the pressure sensor through cables, and the power system is connected with the power system; the signal transmission is carried out between the controller and the cloud management platform through the Cat1 / NB-IoT communication module via a Cat1 / NB-IoT network; the controller grabs the displacement amount, monitored by the displacement sensor, of the jack and the axial force value, monitored by the pressure sensor, of the steel support at a certain frequency F, and the controller sends the displacement amount or the axial force value to the cloud management platform through the Cat1 / NB-IoT communication module.

Description

technical field [0001] The invention relates to the technical field of a supporting axial force servo system, in particular to a wireless low power consumption supporting axial force servo system. Background technique [0002] During the excavation of the foundation pit, it is necessary to support the side wall of the foundation pit to prevent its deformation from causing damage to the underground structural components of the surrounding adjacent buildings. The support of ordinary steel supports during the excavation process has been difficult to achieve in recent years. Complex underground engineering design requirements, the rapid development of steel-supported axial force servo technology provides better protection for the protection of adjacent existing buildings during foundation pit excavation. [0003] Chinese utility model patent CN206616566U discloses a wireless distributed steel support axial force control system. The support head is connected to the steel support ...

AI Technical Summary

Problems solved by technology

[0004] 1) The numerical control pumping station is an external type, which needs to occupy the construction site;

[0005] 2) The CNC pumping station needs to connect the support heads through oil circuits and cables, which are easily damaged during the construction process and cause the steel supports to be out of control;

[0006] 3) A numerically controlled pumping station controls multiple support heads. During the process of loading and unloading a single support head, the cycle of data acquisition and system control is proportional to the number of control points of the controlled support head. When there are many control points, the cycle of acquisition control is relatively short. Long, the response rate drops, and the real-time performance is poor;

[0008] 5) The construction site needs to connect the mains power to the CNC pump station to meet the operation of the CNC pump station and wireless network data transmission, which consumes a lot of power

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