CN202522544U - Bridge health monitoring system based on acoustic emission technology - Google Patents
Bridge health monitoring system based on acoustic emission technology Download PDFInfo
- Publication number
- CN202522544U CN202522544U CN2011205738343U CN201120573834U CN202522544U CN 202522544 U CN202522544 U CN 202522544U CN 2011205738343 U CN2011205738343 U CN 2011205738343U CN 201120573834 U CN201120573834 U CN 201120573834U CN 202522544 U CN202522544 U CN 202522544U
- Authority
- CN
- China
- Prior art keywords
- acoustic emission
- bridge
- bus
- signal
- signal processor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a bridge health monitoring system based on an acoustic emission technology. The bridge health monitoring system comprises a plurality of acoustic emission data acquirers, an acoustic emission signal processor, a monitoring platform system, a controller area network (CAN) bus and the internet, wherein the acoustic emission data acquirers are connected to one end of the CAN bus in series; the other end of the CAN bus is connected with the acoustic emission signal processor; the acoustic emission signal processor is connected with the monitoring platform system through the internet; each acoustic emission data acquirer consists of an acoustic emission sensor, a signal acquirer and a CAN bus transceiver; an output end of the acoustic emission sensor is connected with an input end of the signal acquirer; the output end of the signal acquirer is connected with the input end of the CAN bus transceiver; and the output end of the CAN bus transceiver is connected with the CAN bus. The bridge health monitoring system has the advantages that by adoption of the acoustic emission sensor, the safety health condition of each main part of a bridge can be monitored in real time, any hidden danger about the fatigue of the bridge is early warned, the bridge can be timely maintained, and the problem about health monitoring of the bridge is well solved.
Description
Technical field
The utility model relates to the bridge health monitoring technical field, particularly a kind of bridge health monitoring system based on acoustic emission.
Background technology
Country builds the investment base energetically in recent years, and the construction of all kinds bridge obtains development in an all-round way, like bridge on highway, high-speed railway bridge etc.But accidents such as bridge caves in also emerge in an endless stream, and some human factor such as use inferior materials and turn out substandard goods causes, and also some is that bridge health detection/monitoring technology defective causes.There is not a kind of technology can detect/monitor the bridge health problem effectively at present as yet, monitors the health status of bridge in real time.Therefore, how to design a kind of system that can monitor bridge health status effectively, make when accident takes place, can produce early warning, thereby avoid the generation of injures and deaths incident, become the current focus of research both at home and abroad.
Acoustic emission is a kind of common physical phenomenon, produces distortion or fracture when material receives external force or endogenetic process, and the phenomenon that discharges the ess-strain ability with the elastic wave form is called acoustic emission (Acoustic Emission is called for short AE).Acoustic emission is a kind of with instrument detecting, record, analysis acoustic emission signal with utilize acoustic emission signal to infer the technology of acoustic emission source.It can be in inner structure, defective or the latent defect of member or material in the process of motion change detects.Its principal feature is and can carries out real-time performance analysis to the fatigue process of material, and the structural intergrity of detection of dynamic/monitoring and evaluation member.This acoustic emission has widely aspect test material healthy tired to be used, and also is the focus of research institution's research both at home and abroad at present.
The utility model content
The utility model provides a kind of bridge health monitoring system based on acoustic emission, and the health status of cable-stayed bridge is carried out check and analysis, can monitor the health status at each position of cable-stayed bridge in real time.
A kind of bridge health monitoring system based on acoustic emission; It is characterized in that: said monitoring system comprises a plurality of acoustic emission data acquisition units, acoustic emission signal processor[conditioner], monitor supervision platform system, CAN bus and internet; The acoustic emission data acquisition unit is connected CAN bus one end with series system; The other end of CAN bus connects acoustic emission signal processor[conditioner], and acoustic emission signal processor[conditioner] and monitor supervision platform system are through Internet connection.
Further; Said acoustic emission data acquisition unit is made up of calibrate AE sensor, signal picker and CAN bus transceiver; The calibrate AE sensor output terminal connects the signal picker input end; The signal picker output terminal connects CAN bus transceiver input end, and CAN bus transceiver output terminal connects the CAN bus.
The utility model each several part function is following:
Said acoustic emission data acquisition unit, its function are to survey and gather acoustic emission signal, and are sent to acoustic emission signal processor[conditioner] to the acoustic emission signal that collects through the CAN bus and analyze and handle.
Said calibrate AE sensor, its effect are to survey acoustic emission signal, and convert thereof into electric signal.
Said signal picker; Its effect is an electric signal of gathering calibrate AE sensor output; And carry out simple pre-service, if pretreated result has anomalous event to take place, then send to acoustic emission signal processor[conditioner] to acoustic emission signal and do further analysis and handle through the CAN bus transceiver.
Said CAN bus transceiver, its effect is: 1, receive the instruction from the monitor supervision platform system; 2, send signal that signal picker collects to acoustic emission signal processor[conditioner].
Said acoustic emission signal processor[conditioner], its effect are to receive the acoustic emission signal that sends over from each acoustic emission data acquisition unit, and it is analyzed and handles, and send to the monitor supervision platform system to the result who analyzes through the internet.
Said monitor supervision platform system; Its effect is to receive the health information from each position of bridge that acoustic emission signal processor[conditioner] sended over through the internet; Show the health status of bridge in real time,, then orient the position at this position if unusual condition has appearred in certain position of certain bridge; And the generation alerting signal, remind the security personnel to do further affirmation and processing.
The utility model is a kind of to be arranged in based on the calibrate AE sensor in the bridge health monitoring system of acoustic emission on Sarasota, girder, every oblique zip and each bridge pier of cable-stayed bridge; It is fixed that the calibrate AE sensor quantity that install at each position is come according to field condition, can install one or more flexibly; Its realization is following to the process of bridge monitoring:
The first step; When certain position of bridge (like the oblique zip of certain root) takes place fatigue conditions such as to crack like fracture, deformation, joint area; Deploy troops on garrison duty and to detect acoustic emission signal, and convert thereof into electric signal and be input to signal picker in the calibrate AE sensor at this position;
Second step; After signal picker collects the electric signal of calibrate AE sensor output; It is carried out simple pre-service, if pretreated result has anomalous event (as detecting the bigger acoustic emission signal of intensity) to take place then send to acoustic emission signal processor[conditioner] to acoustic emission signal through the CAN bus transceiver to do further analysis and handle.
The 3rd step; The acoustic emission signal (through algorithm) that each acoustic emission data acquisition unit that acoustic emission signal processor[conditioner] receives sends over does further analysis; Obtain fatigue (process) situation at each position of bridge, and send to the monitor supervision platform system to the result who analyzes through the internet.
The 4th step; The monitor supervision platform system receives the health information from each position of bridge that acoustic emission signal processor[conditioner] sended over through the internet; Show the health status of bridge in real time,, then orient the position at this position if unusual condition has appearred in certain position of certain bridge; And the generation alerting signal, remind the security personnel to do further processing.
The beneficial effect of the utility model is: adopt calibrate AE sensor to monitor the fatigue conditions of bridge; Monitored the safety and Health situation of each main position of bridge such as Sarasota, girder, oblique zip, bridge pier in real time; Potential safety hazard to any tired aspect of bridge provides early warning; And then in time bridge is safeguarded that system sensitivity is high, solved the difficult problem of bridge health monitoring preferably.
Description of drawings
Fig. 1 is the cable-stayed bridge structural representation.
Fig. 2 is the utility model structural representation.
Fig. 3 is the utility model acoustic emission data acquisition unit structural representation.
Embodiment
The utility model is mainly used in the health status of monitoring cable-stayed bridge, and cable-stayed bridge mainly is made up of Sarasota, girder, oblique zip, bridge pier and bridge floor.Calibrate AE sensor is arranged on Sarasota, girder, every oblique zip and each bridge pier of cable-stayed bridge, and it is fixed that the calibrate AE sensor quantity that install at each position is come according to field condition, can install one or more flexibly.
A kind of bridge health monitoring system based on acoustic emission; It is characterized in that: said monitoring system comprises a plurality of acoustic emission data acquisition unit 1, acoustic emission signal processor[conditioner] 2, monitor supervision platform system 3, CAN bus 4 and internet 5; Acoustic emission data acquisition unit 1 is connected CAN bus 4 one ends with series system; The other end of CAN bus 4 connects acoustic emission signal processor[conditioner] 2, and acoustic emission signal processor[conditioner] 2 is connected through internet 5 with monitor supervision platform system 3.
Further; Said acoustic emission data acquisition unit 1 is made up of calibrate AE sensor 11, signal picker 12 and CAN bus transceiver 13; Calibrate AE sensor 11 output terminals connect signal picker 12 input ends; Signal picker 12 output terminals connect CAN bus transceiver 13 input ends, and CAN bus transceiver 13 output terminals connect the CAN bus.
The utility model each several part function is following:
Said acoustic emission data acquisition unit 1; Form by calibrate AE sensor 11, signal picker 12 and CAN bus transceiver 13; Its function is to survey and gather acoustic emission signal, and is sent to acoustic emission signal processor[conditioner] 2 through the acoustic emission signals that CAN bus (cable) 4 handles collect and analyzes and handle.
Said calibrate AE sensor 11, its effect are to survey acoustic emission signal, and convert electric signal to; When fatigue phenomenon (cracking, take place deformation etc. like fracture, inside) takes place in the position (like oblique zip) that any one of bridge installed calibrate AE sensor 11; Its material internal can produce acoustic emission signal; Calibrate AE sensor 11 just can detect acoustic emission signal, and converts voltage or current signal to.
Further, the distance that can survey of calibrate AE sensor 11 is tens meters.
Said signal picker 12; Its effect is an electric signal of gathering calibrate AE sensor 11 outputs; And carry out simple pre-service (as the acoustic emission threshold value is set), if pretreated result has anomalous event (as detecting the acoustic emission signal than hard intensity) to take place then send to acoustic emission signal processor[conditioner] 2 to acoustic emission signal through CAN bus transceiver 13 to do further analysis and handle.
Said CAN bus transceiver 13, its effect is: 1 receives the instruction (as regulating the sensitivity of calibrate AE sensor 11) from monitor supervision platform system 3; The signal that 2 transmission signal pickers 12 collect is to acoustic emission signal processor[conditioner] 2.Further, receiving and transmitting signal all transmits through CAN bus (cable) 4.
Said acoustic emission signal processor[conditioner] 2; Its effect is to receive the acoustic emission signal (judging the acoustic emission signal that has anomalous event to take place through pre-service) that sends over from each acoustic emission data acquisition unit 1; And it is analyzed and handle; Obtain fatigue (process) situation at each position of bridge, and send to monitor supervision platform system 3 to the result who analyzes through internet 5.
Monitor supervision platform system 3; It is characterized in that receiving the health information at each position of bridge that is sended over from acoustic emission signal processor[conditioner] 2 through internet 5; Show the health status of bridge in real time,, then orient the position at this position if unusual condition has appearred in certain position of certain bridge; And the generation alerting signal, remind the security personnel to do further affirmation and processing.
Said a kind of bridge health monitoring system based on acoustic emission, its course of work is following:
The first step; When certain position of bridge (like the oblique zip of certain root) takes place fatigue conditions such as to crack like fracture, deformation, joint area; Deploy troops on garrison duty and to detect acoustic emission signal, and convert thereof into voltage or current signal is input to signal picker 12 in the calibrate AE sensor 11 at this position;
Second step; After signal picker 12 collects the electric signal of calibrate AE sensor 11 outputs; It is carried out simple pre-service, if pretreated result has anomalous event (as detecting the bigger acoustic emission signal of intensity) to take place then send to acoustic emission signal processor[conditioner] 2 to acoustic emission signal through CAN bus transceiver 13 to do further analysis and handle.
The 3rd step; The acoustic emission signal (through algorithm) that each acoustic emission data acquisition unit 1 that acoustic emission signal processor[conditioner] 2 receives sends over does further analysis; Obtain fatigue (process) situation at each position of bridge, and send to monitor supervision platform system 3 to the result who analyzes through internet 5.
The 4th step; Monitor supervision platform system 3 receives the health information at each position of bridge that is sended over from acoustic emission signal processor[conditioner] 2 through internet 5; Show the health status of bridge in real time,, then orient the position at this position if unusual condition has appearred in certain position of certain bridge; And the generation alerting signal, remind the security personnel to do further processing.
Same principle, the utility model also can be used for monitoring the health status of suspension bridge, but are not limited to cable-stayed bridge and suspension bridge.
Claims (2)
1. bridge health monitoring system based on acoustic emission; It is characterized in that: said monitoring system comprises a plurality of acoustic emission data acquisition units, acoustic emission signal processor[conditioner], monitor supervision platform system, CAN bus and internet; The acoustic emission data acquisition unit is connected CAN bus one end with series system; The other end of CAN bus connects acoustic emission signal processor[conditioner], and acoustic emission signal processor[conditioner] and monitor supervision platform system are through Internet connection.
2. a kind of bridge health monitoring system according to claim 1 based on acoustic emission; It is characterized in that: said acoustic emission data acquisition unit is made up of calibrate AE sensor, signal picker and CAN bus transceiver; The calibrate AE sensor output terminal connects the signal picker input end; The signal picker output terminal connects CAN bus transceiver input end, and CAN bus transceiver output terminal connects the CAN bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205738343U CN202522544U (en) | 2011-12-30 | 2011-12-30 | Bridge health monitoring system based on acoustic emission technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205738343U CN202522544U (en) | 2011-12-30 | 2011-12-30 | Bridge health monitoring system based on acoustic emission technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202522544U true CN202522544U (en) | 2012-11-07 |
Family
ID=47105487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205738343U Expired - Fee Related CN202522544U (en) | 2011-12-30 | 2011-12-30 | Bridge health monitoring system based on acoustic emission technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202522544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852522A (en) * | 2014-03-19 | 2014-06-11 | 江苏三川智能科技有限公司 | Method for monitoring and early warning safety of scaffold |
| CN114324611A (en) * | 2021-12-28 | 2022-04-12 | 江苏中路工程技术研究院有限公司 | Steel bridge deck pavement system health monitoring system and method based on acoustic emission technology |
-
2011
- 2011-12-30 CN CN2011205738343U patent/CN202522544U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852522A (en) * | 2014-03-19 | 2014-06-11 | 江苏三川智能科技有限公司 | Method for monitoring and early warning safety of scaffold |
| CN103852522B (en) * | 2014-03-19 | 2016-02-24 | 江苏三川智能科技有限公司 | The method of framing scaffold safety monitoring and early warning |
| CN114324611A (en) * | 2021-12-28 | 2022-04-12 | 江苏中路工程技术研究院有限公司 | Steel bridge deck pavement system health monitoring system and method based on acoustic emission technology |
| CN114324611B (en) * | 2021-12-28 | 2024-02-09 | 江苏中路工程技术研究院有限公司 | Steel bridge deck pavement system health monitoring system and method based on acoustic emission technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103776904A (en) | Bridge health monitoring system based on acoustic emission technology | |
| CN203595550U (en) | Power transmission line aeolian vibration safety early warning system | |
| CN103267763B (en) | A kind of lifting machinery metal structure health monitor method | |
| CN102183697A (en) | System for monitoring noise and vibration of power transformer | |
| CN106197536A (en) | A kind of monitoring system of communication iron tower | |
| CN104296986A (en) | Bolt connecting state monitoring method and system based on addition substructure | |
| CN104965055A (en) | On-line detection and safety assessment method and system for mining steel wire rope | |
| CN108732614A (en) | A kind of online railway monitoring system and method based on distributed acoustic sensor | |
| CN202522544U (en) | Bridge health monitoring system based on acoustic emission technology | |
| CN110057515A (en) | A kind of Bridge Defect Detecting system and method based on deep learning | |
| CN204421965U (en) | A kind of mining comprehensive monitoring system | |
| CN107089244B (en) | A kind of railway switch damage detection system | |
| CN202166542U (en) | Cluster bridge health real time monitoring system based on wireless communication technology | |
| CN103245767A (en) | Network monitoring system and method for real-time collection of heavy metal content | |
| CN205449522U (en) | Track structure operating condition monitoring system | |
| CN205374579U (en) | Transmission line is electrified to be detected and range unit | |
| CN105640573A (en) | Electric power maintainer safety risk monitoring system based on Google glasses | |
| CN114660181A (en) | Safety monitoring system, early warning system and detection method based on acoustic emission sensor | |
| CN210198729U (en) | Health monitoring device for power transmission tower structure | |
| CN106123857A (en) | Lamp stand fault monitoring device | |
| CN108095741A (en) | A kind of mental fatigue Tachistoscope device and method based on EEG signals | |
| CN201897524U (en) | Elevated bridge monitoring device | |
| CN114152275A (en) | Bridge structure monitoring and early warning system based on cloud technology | |
| CN202854810U (en) | Fatigue analysis module for health monitoring of bridge structure | |
| CN203855261U (en) | Real-time monitoring system for elevator running |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20131230 |