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Wireless communication system and method for monitoring state of hobbing cutter of shield tunneling machine

A wireless communication system and wireless communication technology, which is applied in the field of wireless communication system for shield machine hob state monitoring, can solve the problems of continuous measurement, non-reusable use, and single detection function, so as to reduce design difficulty and design cost , Reduce the difficulty of work, the effect of a wide range of applications

Active Publication Date: 2018-04-13
THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the hob working state detection system of the shield machine mainly adopts the traditional wired communication method, which has problems such as cumbersome wiring and single detection function, and generally only measures the wear state of the hob; In the rotating state, the signal lines of various detection sensors need to be led out through slip rings, and then the hob state detection is completed. In order to avoid cable connection problems, pressure detection is often used for wear measurement. This method has low measurement accuracy. Defects such as non-reusability, once the hob is worn out and the hydraulic oil leaks, it cannot continue to be used for measurement; with the extensive application of shield machines in tunnel construction and the requirements for the safety of shield machine construction, it is urgent to solve The working state monitoring problem of the hob on the shield machine cutter head, so it is necessary to design a wireless communication system and method for the state monitoring of the shield machine hob

Method used

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  • Wireless communication system and method for monitoring state of hobbing cutter of shield tunneling machine
  • Wireless communication system and method for monitoring state of hobbing cutter of shield tunneling machine
  • Wireless communication system and method for monitoring state of hobbing cutter of shield tunneling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: as figure 1 As shown, a wireless communication system applied to the condition monitoring of shield machine hobs includes a terminal node 100, a master node 200, a conversion module 300 and a host computer 400; the terminal node 100 is wirelessly connected to the master node 200, and the The master node 200 is connected to the conversion module 300 through the RS485 bus, and the conversion module 300 is connected to the upper computer 400 through the RS232 bus;

[0064] The terminal node 100 is used to receive, collect and process sensor signals, the processed sensor signals are digital signals, and transmit the digital signals to the master node 200 through wireless;

[0065] The master node 200 is configured to receive a digital signal transmitted from the terminal node 100, and send a control command and data transmission after processing the digital signal;

[0066] The conversion module 300 is used to convert the RS485 bus data signal sent by the mas...

Embodiment 2

[0068] Embodiment 2: as figure 2 As shown, a wireless communication method applied to the state monitoring of the hob of the shield machine based on a wireless communication system applied to the state monitoring of the hob of the shield machine includes the following steps:

[0069] Step S201: receiving, collecting and processing the sensor signal, the processed sensor signal is a digital signal, and the digital signal is transmitted to the master node through wireless;

[0070] Step S202: the master node receives the digital signal transmitted from the terminal node, processes the digital signal, and sends a control command and data transmission;

[0071] Step S203: Convert the RS485 bus data signal sent by the master node into an RS232 bus data signal for data communication with the host computer, and at the same time provide power for the master node;

[0072] Step S204: The upper computer receives the data sent from the conversion module, and finally receives and proces...

Embodiment 3

[0073] Embodiment 3: as image 3 As shown, another wireless communication system applied to the state monitoring of the hob of the shield machine includes a terminal node 100, a master node 200, a conversion module 300 and a host computer 400;

[0074] The terminal node 100 is used to receive, collect and process sensor signals, the processed sensor signal is a digital signal, and the digital signal is transmitted to the main node 200 through wireless; the terminal node 100 and the main node 200 form a star Network topology; each terminal node 100 includes a terminal node circuit 101, a battery pack 102 and a wireless communication antenna 103;

[0075] The terminal node circuit 101 also includes a first power management unit 1011, a sensor signal acquisition preprocessing unit 1012, a first microprocessor unit 1013, a first high frequency wireless transceiver unit 1014 and a first low frequency wireless transceiver unit 1015;

[0076] The first power management unit 1011 is ...

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Abstract

The invention discloses a wireless communication system for monitoring the state of a hobbing cutter of a shield tunneling machine. The system comprises a terminal node, a main node, a conversion module and an upper computer. The invention further discloses a wireless communication method for monitoring the state of the hobbing cutter of the shield tunneling machine. The method comprises the following steps: receiving, collecting and processing a signal of a sensor, wherein the processed signal of the sensor is a digital signal, and wirelessly transmitting the digital signal to the main node;receiving, by the main node, the digital signal transmitted from the terminal node, and sending a control command and data transmission after the digital signal is processed; converting a RS485 bus data signal sent by the main node into a RS232 bus signal to perform data communication with the upper computer; and receiving, by the upper computer, data sent by the conversion module, and finally receiving and processing the data collected by the terminal node. By adoption of the wireless communication system and method, the wireless monitoring of the state of the hobbing cutter of the shield tunneling machine is achieved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a wireless communication system and method applied to state monitoring of a hob of a shield machine. Background technique [0002] At present, the hob working state detection system of the shield machine mainly adopts the traditional wired communication method, which has problems such as cumbersome wiring and single detection function, and generally only measures the wear state of the hob; In the rotating state, the signal lines of various detection sensors need to be led out through slip rings, and then the hob state detection is completed. In order to avoid cable connection problems, pressure detection is often used for wear measurement. This method has low measurement accuracy. Defects such as non-reusability, once the hob is worn out and the hydraulic oil leaks, it cannot continue to be used for measurement; with the extensive application of shield machines in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/38H04L29/08G08C17/02H04L12/10H04L29/06
CPCG08C17/02H04L12/10H04L67/12H04L69/08
Inventor 殷谦谢红武张必波陈东海
Owner THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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