Vibration monitoring system based on wireless sensor network

A vibration monitoring system, wireless sensor network technology, applied in network topology, wireless communication, measurement devices, etc., can solve the problems of limited data transmission rate, large test error, etc., achieve less computer tasks, reduce material cost, test Simple to use effects

Inactive Publication Date: 2016-03-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the wireless sensor network used in the vibration monitoring of existing engineering structures adopts a wired method to transmit data signals, the test error is large and the data transmission rate is limited, and a vibration monitoring based on a wireless sensor network is provided. system

Method used

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  • Vibration monitoring system based on wireless sensor network
  • Vibration monitoring system based on wireless sensor network
  • Vibration monitoring system based on wireless sensor network

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Experimental program
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specific Embodiment approach 1

[0031] Specific implementation mode one: the following combination Figure 1 to Figure 7 Describe this embodiment, the vibration monitoring system based on wireless sensor network described in this embodiment, it comprises wireless sensor node 1, wireless router 2 and computer 3,

[0032] The wireless sensor node 1 includes an acceleration sensor chip 1-1, a data processor 1-2, a wireless signal transceiver 1-3 and a power supply module 1-4,

[0033] The acceleration sensor chip 1-1 is used to collect the acceleration data of the three axial directions of the monitoring point, and transmits the acceleration data to the data processor 1-2; the three axial directions are the positions of the monitoring points, and the acceleration sensor chip 1-1 1 The directions of the three coordinate axes of itself in the space coordinate system;

[0034] The data processor 1-2 is used to store the received acceleration data, and transmit the acceleration data to the wireless signal transcei...

specific Embodiment approach 2

[0039] Specific implementation mode two: the following combination Figure 2 to Figure 4 Describe this embodiment mode, this embodiment mode is further described embodiment one, described data processor 1-2 comprises data collection module, data sending module, command word receiving module and initialization module;

[0040] The data acquisition module is used to collect the acceleration data sent by the acceleration sensor chip 1-1 according to the specified frequency, and store the acceleration data in a predetermined data queue. When the predetermined data queue is full, start the data transmission module; the data acquisition module collects The sequence of acceleration data is X axis, Y axis and Z axis;

[0041] The data transmission module starts a data transmission according to the starting instruction of the data acquisition module, and after the acceleration data in the predetermined data queue is sent to the wireless signal transceiver 1-3, the predetermined data qu...

specific Embodiment approach 3

[0044] Specific implementation mode three: the following combination figure 1 Describe this embodiment mode, this embodiment mode will further explain embodiment one or two, realize communication through Wi-Fi protocol between wireless signal transceiver 1-3 and wireless router 2; Wireless signal transceiver 1-3 and computer 3 all It is set in the fixed network segment set by the wireless router 2.

[0045] The connection mode between the wireless router 2 and the computer 3 can be a wireless connection or a wired connection; the information collected by the wireless sensor node 1 is transmitted to the wireless router 2 through a wireless signal, and the wireless router 2 completes the signal forwarding work, and Send the signal to computer 3.

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Abstract

The invention relates to a vibration monitoring system based on the wireless sensor network, belongs to the technical field of engineering structure vibration and safety monitoring, and aims at solving the problem that the test error is large and the data transmission speed is limited due to the fact that the wireless sensor network used in the present engineering structure vibration monitoring transmits data signals in the wired manner. An acceleration sensor chip of the system is used to collect acceleration data in three axial directions of a monitoring point, transmits the acceleration data to a data processor; the data processor is used to store the received acceleration data, and transmits the acceleration data to a wireless signal transceiver; the wireless signal transceiver is used to send the acceleration data to a wireless router in a wireless manner; the wireless router is used to realize wireless communication connection between wireless sensor nodes and a computer; and the computer includes a data collection module. The system of the invention is used to monitor vibration.

Description

technical field [0001] The invention relates to a vibration monitoring system based on a wireless sensor network, and belongs to the technical field of engineering structure vibration and safety monitoring. Background technique [0002] The health monitoring of engineering structures is to implement real-time monitoring and diagnosis of engineering structures. With the help of non-destructive sensing technology, analyze the dynamic response of sensors arranged on the structure, understand the dynamic characteristics of the structure, and achieve the purpose of damage detection. The damage of the structure is detected in time and its safety is evaluated, and the performance change of the structure is predicted to provide support for the later maintenance of the structure. Therefore, structural health monitoring is an effective means to ensure the safe service of structures. Obtaining reliable test data is an important basis for health monitoring analysis. [0003] The sensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00H04W84/18
CPCG01H17/00H04W84/18
Inventor 郭丽娜丁勇丁军帅杨光
Owner HARBIN INST OF TECH
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