A Tunnel Convergence Monitoring Sensor

Abstract

A convergence monitoring sensor for a tunnel belongs to the measurement field. The convergence monitoring sensor comprises a tunnel convergence acquisition instrument and a microwave detection target. The tunnel convergence acquisition instrument comprises a microwave ejector and a microwave receiver. The microwave ejector is used for transmitting microwave with a customizable frequency for a target and the microwave ejector comprises a microwave signal transmitting module (1), a microwave frequency and bandwidth customizing module (2) and an angle measuring module (3). The microwave receiver is used for receiving a microwave signal with the customizable frequency, recording walking speed and time, conducting the convergence calculation, storing and conducting the data transmission and the microwave receiver comprises a microwave signal receiving module (4), a microwave frequency customizing module (5), a time and speed measuring module (6), a data processing and displaying module (7) and a data storing and transmitting module (8). The convergence monitoring sensor has the advantages of being high in data accuracy, less than +-1 mm in convergence error, free of environmental restriction, capable of tracing and detecting in real time, and capable of measuring distance and processing data, greatly improving efficiency and assuring the safety in monitoring and construction.

Description

technical field [0001] The invention relates to a device for measuring the convergence of tunnels and other underground projects by emitting microwaves. It is a microwave sensor. The microwave signal is sent in real time by a microwave transmitter to track and detect the position of the target object, and the echo is measured and processed by a signal collector. The signal is used for tunnel convergence monitoring. The invention is mainly used for tunnel and underground engineering convergence monitoring and belongs to the field of measurement. Background technique [0002] Underground projects such as tunnels play an important role in highway, railway and subway projects, and construction monitoring and measurement is an important part of underground projects such as tunnels. Tunnel convergence currently mainly uses traditional measurement tools such as level gauges, steel hanging rulers, convergence gauges, and total stations. The measurement accuracy is not high, and it i...

AI Technical Summary

Problems solved by technology

Tunnel convergence currently mainly uses traditional measurement tools such as level gauges, steel hanging rulers, convergence gauges, and total stations. The measurement accuracy is not high, and it is greatly affected by tunnel construction. The workload of analysis and so on is heavy, and the engineering application is inconvenient

Existing laser displacement sensors and acoustic wave sensors have poor anti-interference ability, and at the same time cannot realize the tracking and measurement of tunnel monitoring targets

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