Tunnel deformation monitoring and early warning radar system

Abstract

The invention discloses a tunnel deformation monitoring and early warning radar system, which comprises a deformation monitoring radar module, a router, a central processing unit, a trihedral corner reflector, an alarm system and a cloud platform, and is characterized in that the deformation monitoring radar module comprises a radio frequency module, a radio frequency control module, a communication module and a signal processing module; the central processing unit comprises a communication module, a module control unit, a data processing platform and a data storage unit; the signal processingmodule is used for receiving a command of the central processing unit and transmitting detection signal data to the central processing unit; the central processing unit is used for analyzing receivedecho data, calculating coordinates of a point to be measured according to the analyzed distance information, uploading monitoring information to the cloud platform through the transmission network, and completing communication, data storage, information integration and alarm system driving with the plurality of deformation monitoring radar modules; the system can work normally in various complextunnel environments, and all-weather, full-automatic and real-time monitoring, uploading and early warning can be achieved.

Description

technical field [0001] The invention relates to the technical field of tunnel surrounding rock deformation monitoring radar systems, in particular to a tunnel deformation monitoring and early warning radar system. Background technique [0002] In recent years, tunnel collapse accidents have occurred frequently, and the safety of tunnel construction and production urgently requires reliable technology to warn of possible dangerous situations; due to the complex geological conditions of construction tunnels, if encountering deformation, faults, cracks, etc., it is easy to cause geological disasters such as collapse and roof fall , thus endangering the lives of construction workers. Therefore, the monitoring and early warning of tunnel surrounding rock deformation has important theoretical significance and practical application value. [0003] At present, the tunnel surrounding rock deformation monitoring technology mainly adopts artificial static inspection, such as photogramm...

AI Technical Summary

Problems solved by technology

[0003] At present, the tunnel surrounding rock deformation monitoring technology mainly adopts artificial static inspection, such as photogrammetry, laser range finder with theodolite, total station measurement, etc. Due to inherent reasons, these methods have poor real-time monitoring and require a lot of manpower and material resources , the measurement accuracy and error are affected by many environmental factors and people's own state. The conditions in the tunnel are complex, usually accompanied by a large amount of dust, and the line of sight is extremely poor. Using this type of optical measurement method cannot work in this harsh environment.

[0004] Ultrasonic distance measurement can also be used in the field of tunnel surrounding rock deformation monitoring, but it also has obvious shortcomings. The air density and air pressure in the tunnel are not uniform, resulting in an increase in the signal error during the ultrasonic propagation process, and its attenuation in the air is large, and the detection distance nearer

Digital image processing technology is also used in the field of tunnel monitoring, but it is also greatly affected by visibility, and the cost is high

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