Multi-sensor-based shield condition acquisition system

Abstract

The invention discloses a multi-sensor-based shield condition acquisition system comprising a data acquisition unit and a condition control unit. The data acquisition unit comprises a rotating speed sensor, a first pressure sensor, a flow sensor, a speed sensor, a single-chip microcomputer and a bluetooth transmitting module. The rotating speed sensor, the first pressure sensor, the flow sensor and the speed sensor are electrically connected with the I / O pin of the single-chip microcomputer, and the bluetooth transmitting module is also electrically connected with the single-chip microcomputer. The condition control unit comprises a bluetooth adapter and a controller. The bluetooth adapter is electrically connected with the controller, and the controller is electrically connected with a shield machine operation platform. According to the system, data acquisition is performed on multiple sensors through the single-chip microcomputer, data acquisition is real-time and more accurate, intelligent adjustment of the single-chip microcomputer for the rotating speed of the cutterhead, the flow of the mud pipe and the propulsion speed of the shield machine does not delay the construction progress of the shield machine, and the shield machine can be protected so as to be quite effective.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a multi-sensor-based shield tunneling working condition acquisition system. Background technique [0002] In our country, the machine used in soft ground is customarily called a shield machine. The tunnel construction of the shield machine has the advantages of high degree of automation, manpower saving, fast construction speed, one-time hole formation, not affected by the climate, and reliable excavation. With the characteristics of controlling ground subsidence, reducing the impact on ground buildings, and not affecting ground traffic during underwater excavation, it is more economical and reasonable to use a shield machine for construction when the tunnel line is long and the buried depth is large. [0003] The basic working principle of the shield machine is that a cylindrical steel component is pushed forward along the tunnel axis to excavate the soil. The shell of ...

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Problems solved by technology

[0005] Under the shield working conditions of the above-mentioned shield machine, there are the following obvious defects: 1. It is necessary to monitor the speed of the cutter head, the pressure of the soil bin, the flow rate of the mud pipe and the moving speed of the shield machine in real time, so as to realize the monitoring of the shield machine. However, in the prior art, the rotational speed and moving speed of the cutter head displayed on the operating platform of the shield machine are all rated output speeds. Since the shield machine is subjected to frictional resistance under the ground, the actual rotational speed of the cutter head and the The actual moving speed of the shield machine cannot reach the rated speed; 2. When the pressure in the soil bin is too high, the pressure in the soil bin cannot be released intelligently, and the excavation can only be stopped by closing the cutterhead and the push cylinder first , so that the soil silo pressure is released from the mud pipe, but closing the cutter head and pushing the oil cylinder will delay the construction progress of the shield machine, and improper operation will cause damage to the shield machine

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