CN106525129A - Intelligent bridge monitoring system based on multi-source detection fusion means - Google Patents
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Abstract
Disclosed in the invention is an intelligent bridge monitoring system based on a multi-source detection fusion means. The intelligent bridge monitoring system is composed of an information sensing system, a data acquisition system, a data communication and transmission system, a data analysis and processing system, and an evaluation and alarm system. The data acquisition system is used for collecting an optical signal power outputted by a fiber sensing system intelligent and the collected data are transmitted to the data communication and transmission system by a wireless network or a private network. The data communication and transmission system transmits the collected data to the data analysis and processing system remotely; the data analysis and processing system analyzes and processes the received data to obtain monitoring information and displays a monitoring result; and the evaluation and alarm system is responsible for evaluating the monitoring result. Therefore, the traditional and distributed fiber detection ways for obtaining target data have respective advantages and disadvantages, thereby realizing high complementarity and trustworthiness. While data fusion is carried out by the system, a determination error caused by replying on a single detection way can be eliminated.
Description
Technical field
The present invention relates to wisdom bridge monitoring field, more particularly to carry out realizing wisdom bridge using various monitoring measures
Applied research, specially a kind of wisdom bridge monitoring system based on multi-source detection fusion means wherein apply new dividing
Cloth optical fiber sensing technology.
Background technology
Following science of bridge building to it is more intelligent, safer, more economical, more resistant to waiting so long, direction is developed, China was from 2015
The concept of " wisdom bridge " is proposed, it is mentioned that by the Internet, Internet of Things, big data and " information technology such as cloud computing and bridge
Pipe supports the fusion of technology, to ensure safety and durability of large bridge etc..
General regular, the special examination that the foster unit of pipe is carried out to bridge at present expends a large amount of human and material resources, financial resources, while
System, comprehensive, real-time bridge health status information can not but be obtained, it is impossible to make pre- in time to bridge dangerous situation
It is alert, therefore trend of falling behind has been presented.
Now propose using various detection meanss, wherein in a distributed manner based on optical fiber sensing technology, build a wisdom bridge
Monitoring platform.As Distributed Optical Fiber Sensing Techniques collection is sensed and is transmitted in one, telemeasurement and monitoring is capable of achieving, is compared
Traditional sensors have the features such as sensitivity is high, information capacity is big, environmental suitability is strong, thus cost performance is higher.
The content of the invention
Purpose is to build a kind of wisdom bridge monitoring platform, accurately and efficiently obtains bridge health state aspect real-time
Information, makes timely early warning for bridge security, while improving pipe supports work efficiency.It is many using Distributed Optical Fiber Sensing Techniques etc.
The bridge health monitoring platform that detection meanss are built is planted, the real time information such as the relevant temperature of bridge, strain, displacement can be obtained, and
When efficiently provide comprehensively reliable early warning information for Bridge Management ＆ Maintenance unit.
In order to realize the purpose of the present invention, the present invention adopts following technical proposals.
A kind of wisdom bridge monitoring system based on multi-source detection fusion means of design, it is characterised in that the monitoring system
Mainly include information gathering system, data collecting system, data communication and Transmission system, data analysiss and processing system and assessment
With warning system；Information gathering system includes point data acquisition system and distributed optical fiber sensing system, and data collecting system is used
Intelligent acquisition, the data of collection are carried out in the optical signal power to point data acquisition system and distributed optical fiber sensing system output
It is transmitted with Transmission system to data communication by wireless network or private network, the number that data communication will be gathered with Transmission system
According to teletransmission to data analysiss and processing system, data analysiss and processing system are analyzed and are located to the data for receiving
Reason, obtains monitoring information and monitoring result is presented, and assesses to be responsible for being estimated monitoring result with warning system and is supervised with grasping
The bridge health security situation of survey, the timely alert if more than threshold value.
The data analysiss and processing system are analyzed to the data for receiving and the process that processes includes：Data fusion
Process, specially：
In formula, V is referred to based on the monitoring supplemental characteristic obtained after integration technology；ωP、ωLRefer respectively to detect based on " point "
Means, the fusion coefficients based on " line " detection meanss when Data Fusion is carried out；VP、VLRefer respectively to be based respectively on " point "
Detection meanss, the monitoring supplemental characteristic obtained based on " line " detection meanss.
When the supplemental characteristic obtained based on " point " detection meanss is seriously lost or is wrong, ωP=0；In the same manner, it is based on
When the supplemental characteristic that " line " detection meanss are obtained seriously is lost or is wrong, ωL=0；
Fusion coefficients, method are determined using weighted average：
In formula,IncludingRefer respectively to, at the j periods, detect handss based on " line " detection meanss, based on " point "
Coefficient of the section when being merged when weighted average (i.e. weight), IncludingRefer respectively to
During j periods, based on " line " detection meanss, the standard deviation based on " point " detection meanss data.
Compared with prior art, its advantage is the present invention：
1st, compare bridge make regular check on, special examination, can more system, more comprehensively, more using wisdom bridge monitoring system
The real-time monitoring data of bridge is obtained efficiently；
2nd, traditional sensor is compared, as distributed fiberoptic sensor integrates transmission and senses, can be remote
Monitoring, more cost performance；
3rd, the tradition and two kinds of detection meanss of distribution type fiber-optic that can obtain target data respectively has quality, with very big complementation
Property and trust degree, carry out data fusion and can avoid the unilateral error in judgement for relying on single detection meanss and causing.
Description of the drawings
Fig. 1 is the data fusion basic principle schematic based on multi-source detection meanss, and the part that circle is overlapped each other represents each
The redundancy between information source is planted, and lap is not the unique information of respective information source, complementary information is provided for other information source.
Monitoring system pie graphs of the Fig. 2 for an embodiment of the present invention.
Distributed fiberoptic sensor layout diagrams of the Fig. 3 for an embodiment of the present invention, wherein, 1 is that bearing is distributed
Fibre Optical Sensor, 2 is beam body distributed fiberoptic sensor, and 3 is bridge pier distributed fiberoptic sensor.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
In order to the present invention is expanded on further for reaching the technological means adopted by predetermined purpose, now said with embodiment
It is bright.
The present invention provides a kind of wisdom bridge monitoring system (abbreviation monitoring system, ginseng based on multi-source detection fusion means
See Fig. 1-3), the monitoring system mainly includes information gathering system, data collecting system, data communication and Transmission system, data
Analysis and processing system and assessment and warning system；Information gathering system includes point data acquisition system and distributing optical fiber sensing
System, data collecting system for point data acquisition system and distributed optical fiber sensing system output optical signal power carry out
Intelligent acquisition, the data of collection are transmitted with Transmission system to data communication by wireless network or private network, data communication
With Transmission system by the data transferring for gathering to data analysiss and processing system, data analysiss and processing system are to receiving
Data be analyzed and process, obtain monitoring information and monitoring result be presented, assessment with warning system be responsible for monitoring result
It is estimated to grasp monitored bridge health security situation, the timely alert if more than threshold value.
The data analysiss and processing system are analyzed to the data for receiving and the process that processes includes：Data fusion
Process.So huge monitoring system necessarily leads to the data of magnanimity, and it is not all right data are carried out with simple accumulation to process, because
This needs to carry out fusion treatment.For this purpose, we can when necessary with traditional " point " monitoring meanss (i.e. point data acquisition system)
" key point " Monitoring Data is obtained, using Fusion Model, is merged with " line " Monitoring Data of distributed optical fiber sensing system
Obtain the higher Monitoring Data of trust degree：
In formula, V is referred to based on the monitoring supplemental characteristic obtained after integration technology；ωP、ωLRefer respectively to detect based on " point "
Means, the fusion coefficients based on " line " detection meanss when Data Fusion is carried out；VP、VLRefer respectively to be based respectively on " point "
Detection meanss, the monitoring supplemental characteristic obtained based on " line " detection meanss.
When the supplemental characteristic obtained based on " point " detection meanss is seriously lost or is wrong, ωP=0；In the same manner, it is based on
When the supplemental characteristic that " line " detection meanss are obtained seriously is lost or is wrong, ωL=0.
Fusion coefficients, method are determined using weighted average：
In formula,IncludingRefer respectively to, at the j periods, detect handss based on " line " detection meanss, based on " point "
Coefficient of the section when being merged when weighted average (i.e. weight), IncludingRefer respectively to
During j periods, based on " line " detection meanss, the standard deviation based on " point " detection meanss data.
1 two kinds of monitoring meanss relative analyses tables of table
As known from Table 1, two kinds of detection meanss are with its respective reliability, tupe, data inputting and acquisition mode etc.
Can obtain needs the data of monitoring, has established the theoretical basiss based on multisource data fusion.
Traditional monitoring means teach skill art from distribution type fiber-optic, and not only operation principle is different, and acquired intersection number is not according to yet
Together, therefore, in the face of magnanimity, the skimble-scamble pit retaining monitoring supplemental characteristic of form, only maintaining its simple accumulation to be cannot
, need to carry out fusion treatment.The ultimate principle of Data fusion technique is exactly to make full use of Multiple Information Sources or data source to obtain
These information and data are carried out reasonable distribution by the information for taking and data, and efficient combination removes space superfluous with temporal
It is remaining, integrated complementary information maximized, preferably phenomenon or process are annotated, general producing ratio single piece of information
Source is more accurate, more completely estimation and judgement, and to obtain, destination object is more essential, can more reflect the result of its situation.
The monitoring information includes monitored bridge temperature, stress, crack, vibration, steel bar corrosion etc..
The point data sensor of the point data acquisition system is laid on a certain section of bridge, can obtain the section
On monitoring parameter information.
The distributed optical fiber sensing system is the distributed optical fiber sensing system based on Brillouin optical time domain analysis technology,
Distributed fiberoptic sensor is laid and is pasted onto on the surface for needing monitor component position of bridge, it is ensured that sticking Quality, and carries out
Record is distinguished, the bridge position of each Fibre Optical Sensor monitoring is specified, referring to Fig. 3.
Wisdom bridge monitoring Platform Solution is to build a large-scale sensor monitoring network, i.e., in each main monitoring of bridge
Distributed fiberoptic sensor and traditional monitoring sensor are arranged in position：
(1) for common girder structure, at positions such as Bridge Pier, bearing and beam bodies；
(2) for suspension bridge, at positions such as beam body, suspension rod, Sarasota, cables；
(3) for cable-stayed bridge, at positions such as beam body, suspension cable, Sarasotas
(4) for arch bridge, at positions such as beam body, arch ribs；
The monitoring network of every bridge arrangement can be passed by distributed sensor and traditional monitoring as an independent system
Sensor senses in real time and transmits the information such as the strain of each component of bridge, temperature, displacement to data analysiss and processing system, data point
Analysis and processing system can be with the health status at each position of real-time monitoring bridge.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (5)
1. the wisdom bridge monitoring system based on multi-source detection fusion means, it is characterised in that the monitoring system mainly includes letter
Breath sensor-based system, data collecting system, data communication and Transmission system, data analysiss and processing system and assessment and the system that reports to the police
System；Information gathering system includes point data acquisition system and distributed optical fiber sensing system, and data collecting system is for points
The optical signal power exported according to acquisition system and distributed optical fiber sensing system carries out intelligent acquisition, and the data of collection are by wireless
Network or private network are transmitted to data communication with Transmission system, and the remote data for gathering is passed by data communication with Transmission system
Data analysiss and processing system is delivered to, data analysiss and processing system are analyzed and are processed to the data for receiving, supervised
Measurement information is simultaneously presented monitoring result, and to monitoring result be estimated responsible with warning system of assessment is good for grasping monitored bridge
Health security situation, the timely alert if more than threshold value；
The data analysiss and processing system are analyzed to the data for receiving and the process that processes includes：At data fusion
Reason, specially：
In formula, V is referred to based on the monitoring supplemental characteristic obtained after integration technology；ωP、ωLRefer respectively to detect handss based on " point "
Section, the fusion coefficients based on " line " detection meanss when Data Fusion is carried out；VP、VLRefer respectively to be based respectively on " point " inspection
Survey means, the monitoring supplemental characteristic obtained based on " line " detection meanss；
When the supplemental characteristic obtained based on " point " detection meanss is seriously lost or is wrong, ωP=0；In the same manner, examined based on " line "
When the supplemental characteristic that survey means are obtained seriously is lost or is wrong, ωL=0；
Fusion coefficients, method are determined using weighted average：
In formula,IncludingRefer respectively to, at the j periods, exist based on " line " detection meanss, based on " point " detection meanss
Coefficient when being merged when weighted average (i.e. weight), IncludingRefer respectively in j
Duan Shi, based on " line " detection meanss, the standard deviation based on " point " detection meanss data.
2. the wisdom bridge monitoring system based on multi-source detection fusion means according to claim 1, it is characterised in that institute
Stating monitoring information includes monitored bridge temperature, stress, crack, vibration, steel bar corrosion.
3. the wisdom bridge monitoring system based on multi-source detection fusion means according to claim 1, it is characterised in that institute
The point data sensor for stating point data acquisition system is laid on a certain section of bridge, can obtain the monitoring ginseng on the section
Number information.
4. the wisdom bridge monitoring system based on multi-source detection fusion means according to claim 1, it is characterised in that institute
It is the distributed optical fiber sensing system based on Brillouin optical time domain analysis technology to state distributed optical fiber sensing system.
5. the wisdom bridge monitoring system based on multi-source detection fusion means according to claim 1, it is characterised in that institute
The distributed fiberoptic sensor for stating distributed optical fiber sensing system lays the surface for needing monitoring component position for being pasted onto bridge
On, it is ensured that sticking Quality, and differentiation record is carried out, specify the bridge position of each Fibre Optical Sensor monitoring.
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| CN107220755A (en) * | 2017-05-23 | 2017-09-29 | 大连理工大学 | The high ferro quick early warning system of arch bridge rigid hanger abnormality and its method |
| CN109920319A (en) * | 2019-04-29 | 2019-06-21 | 兰州沃博特机器人科技有限公司 | A kind of wisdom bridge teaching experiment sand table system and application method |
| CN110136413A (en) * | 2018-02-09 | 2019-08-16 | 上海宏英智能科技有限公司 | A kind of multi-functional data comparison system and its method |
| CN113159475A (en) * | 2020-12-04 | 2021-07-23 | 中国国家铁路集团有限公司 | Infrastructure full life cycle monitoring platform and method |
| CN113280908A (en) * | 2021-06-16 | 2021-08-20 | 深圳防灾减灾技术研究院 | Building structure real-time diagnosis method and device based on fusion index |
| CN114088133A (en) * | 2021-10-26 | 2022-02-25 | 广西宝烨信息技术有限公司 | Optical fiber distributed sensing monitoring system for bridge |
| CN117824756A (en) * | 2024-02-29 | 2024-04-05 | 深圳市腾信建设股份有限公司 | Building structure monitoring method, equipment and storage medium |
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| CN107220755A (en) * | 2017-05-23 | 2017-09-29 | 大连理工大学 | The high ferro quick early warning system of arch bridge rigid hanger abnormality and its method |
| CN107220755B (en) * | 2017-05-23 | 2020-05-19 | 大连理工大学 | Rapid early warning system and method for abnormal state of rigid suspender of high-speed railway arch bridge |
| CN110136413A (en) * | 2018-02-09 | 2019-08-16 | 上海宏英智能科技有限公司 | A kind of multi-functional data comparison system and its method |
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| CN113280908A (en) * | 2021-06-16 | 2021-08-20 | 深圳防灾减灾技术研究院 | Building structure real-time diagnosis method and device based on fusion index |
| CN114088133A (en) * | 2021-10-26 | 2022-02-25 | 广西宝烨信息技术有限公司 | Optical fiber distributed sensing monitoring system for bridge |
| CN114088133B (en) * | 2021-10-26 | 2023-12-15 | 广西宝烨信息技术有限公司 | Optical fiber distributed sensing monitoring system for bridge |
| CN117824756A (en) * | 2024-02-29 | 2024-04-05 | 深圳市腾信建设股份有限公司 | Building structure monitoring method, equipment and storage medium |
| CN117824756B (en) * | 2024-02-29 | 2024-05-28 | 深圳市腾信建设股份有限公司 | Building structure monitoring method, equipment and storage medium |
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Application publication date: 20170322 |