CN101315274A - Monitoring device and real-time monitoring method for bridge vibration deformation - Google Patents
Monitoring device and real-time monitoring method for bridge vibration deformation Download PDFInfo
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- CN101315274A CN101315274A CNA2008101500771A CN200810150077A CN101315274A CN 101315274 A CN101315274 A CN 101315274A CN A2008101500771 A CNA2008101500771 A CN A2008101500771A CN 200810150077 A CN200810150077 A CN 200810150077A CN 101315274 A CN101315274 A CN 101315274A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012806 monitoring device Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 238000004891 communication Methods 0.000 claims abstract description 11
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 50
- 238000012546 transfer Methods 0.000 claims description 41
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000005693 optoelectronics Effects 0.000 claims description 14
- 238000003384 imaging method Methods 0.000 claims description 13
- 238000002310 reflectometry Methods 0.000 claims description 8
- 230000011514 reflex Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 239000005338 frosted glass Substances 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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Abstract
The invention discloses a monitoring device and a real-time monitoring method for bridge vibration and deformation. The device comprises a laser emitter, synchronous light receiving and transmitting devices on a plurality of monitoring points, a centralized control and communication device, a remote monitoring center, etc. When a beam emitted by the laser emitter irradiates a reflection and transmission prism of the synchronous light receiving and transmitting device, the beam is split in proportion; a part of the split beam is reflected and received; the other part of the split beam is transmitted and passed, and irradiates a reflection and transmission prism of the next synchronous light receiving and transmitting device; and each synchronous light receiving and transmitting device can collect and store deformation (spot displacement) of a monitoring point, and upload the data of the deformation. The monitoring system can synchronously collect and process data on the deformation of all monitoring points, thereby realizing the measurement for vibration and deformation of a whole bridge. The monitoring device and the monitoring method can be used for measuring the deformation and the low-frequency vibration of various large-scaled bridge buildings. Furthermore, the device and the method have the advantages of rapid and real-time measurement, high accuracy of measurement, and real-time monitoring.
Description
Technical field
The present invention relates to a kind of measurement mechanism and measuring method, particularly a kind of monitoring device of large bridge vibration deformation and method of real-time.
Background technology
Because the apparatus and method of the real-time vibration deformation monitoring of domestic involved bridge aspect are fewer at present, and current measuring methods some too complexity and measuring accuracy are not high, perhaps metering system is simple, can not measure the deflection of bridge accurately, can not gather in real time accurately, make troubles for distortion situation and the security judgement of bridge monitoring personnel bridge.
Summary of the invention
The present invention improves the security of bridge in using in order to solve the existing existing above-mentioned deficiency of bridge vibration deformation monitoring method.A kind of high precision based on the laser imaging principle is provided, has monitored the apparatus and method of bridge vibration deformation in real time.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of monitoring device of bridge vibration deformation, comprise a generating laser that is arranged on bridge one end or the arbitrary position of bridge length direction, or be separately positioned on two generating lasers at bridge two ends, it is characterized in that, the bridge that generating laser outgoing beam rectilinear direction is extended is provided with a plurality of monitoring points, a cover synchronizable optical all is set on each monitoring point receives and transfer device; Each synchronizable optical receives and transfer device is exported fieldbus of connection by signal wire separately, this fieldbus is connected to centralized control and the communication device that is in laser transmitter positions, and this centralized control and communication device and a remote monitoring center realize that by wireless or wired mode synchronizable optical receives and the transmission of transfer device Monitoring Data.
In the said apparatus, described synchronizable optical receives and transfer device comprises a reflection and transmission prism that is placed on the outgoing beam, be provided with imaging screen, optical amplifier and opto-electronic conversion and data-carrier store perpendicular to reflection and transmission prismatic reflection light direction, opto-electronic conversion and data-carrier store connect fieldbus by signal wire.
The above monitoring device of a kind of usefulness is monitored the method for bridge vibration deformation in real time, comprises the steps:
(1) at first a generating laser is installed in an end or the arbitrary position of bridge length direction of bridge, or two generating lasers are installed respectively at the bridge two ends, the bridge that generating laser outgoing beam rectilinear direction is extended is provided with a plurality of monitoring points, one cover synchronizable optical all is set on each monitoring point receives and transfer device, generating laser receives and transfer device emission laser to the first cover synchronizable optical on its nearest monitoring point;
(2) first cover synchronizable optical receptions and transfer device carry out beam split by a certain percentage to the emergent light of generating laser, part reflection reception, imaging and collection storage; Part transmission is also transmitted backward; Thereafter each synchronizable optical reception and transfer device are handled equally to the synchronizable optical reception of front and the emergent light of transfer device;
(3) synchronizable optical of each measuring point receives and transfer device outputs to a fieldbus with the photoimaging data of the storage signal wire by separately, to centralized control that is in laser transmitter positions and communication device, centralized control and communication device arrive remote monitoring center by wireless or wire transmission through this fieldbus synchronous transmission.
In the said method, the first cover synchronizable optical described in the step (2) receives and transfer device to the concrete grammar that the emergent light of generating laser carries out beam split by a certain percentage is: the first cover synchronizable optical receive and transfer device in adopt a reflection and transmission prism that is placed on the outgoing beam, this reflection and transmission prism carries out beam split with the outgoing beam of generating laser by a certain percentage, and a part of transmission and synchronizable optical sternward receive and the transfer device transmission; A part reflexes to imaging screen; Form a uniform hot spot, be input in opto-electronic conversion and the data-carrier store through optical amplifier again, its initial hot spot data of gathering of opto-electronic conversion and data-carrier store are set to reference point, when bridge generation vibration deformation, hot spot can be moved on imaging screen, at this moment opto-electronic conversion and data-carrier store compare hot spot variable quantity and the reference point that collects, by its accurate output bridge of signal wire that connects fieldbus at the horizontal and vertical deflection of this measuring point.
Reception of synchronizable optical described in the step (2) and transfer device carry out beam split by a certain percentage and be meant: the reflectivity of the reflection and transmission prism of the first cover synchronizable optical reception and transfer device is by 10%, the reflectivity of each synchronizable optical reception thereafter and the reflection and transmission prism of transfer device increases progressively by 5%, makes the measuring point number satisfy length and the accuracy requirement that will measure bridge.
When at the two ends of bridge generating laser being installed described in the step (1), generating laser can receive and the transfer device correlation from the synchronizable optical of two ends on each monitoring point, bridge middle part of bridge, and the method for (2) then set by step～(3) realizes the bridge vibration of large span and the real-time monitoring of distortion.
Because the work of the light-receiving of measurement mechanism of the present invention and transmission emission is continuous, not only can carry out the timing acquiring of bridge deformation amount, and gather monitoring can carry out the high-precision real of bridge vibration deformation the time, the distortion of the understanding bridge of more convenient and quicker, make the accurate more and safety of measurement, and can obtain the mode of oscillation of bridge structure.The monitoring personnel can be analyzed the various distortion of bridge, can make in advance the ANOMALOUS VARIATIONS of bridge and judging and processing, and provide foundation optimal design.
In measuring process, the present invention can be according to the difference of bridge self character, the method that can take to increase or reduce the distance of the quantity of measurement point and measurement point realizes measurement requirement, also can take the mode of two ends correlation to carry out the deformation measurement of Longspan Bridge, also sectional is measured, and measurement effect and precision are unaffected.
Description of drawings
Fig. 1 is the structural principle block diagram of laser deformation measuring device of the present invention; Among the figure: 1, generating laser; 2, outgoing beam; 3, reflection and transmission prism; 4, imaging screen; 5, optical amplifier; 6, opto-electronic conversion and data-carrier store; 7, the folded light beam of prism; 8, the transmitted light beam of prism; 9, synchronizable optical receives and transfer device; 10, centralized control and communication device; 11, remote monitoring center.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
With reference to Fig. 1, at first form by generating laser 1 emission that irradiating light beam 2 shines that the first cover synchronizable optical receives after through the beam-expanding collimation optical system and the reflection and transmission prism 3 of transfer device 9 on after, pass through the folded light beam 7 of prism by a certain percentage, shine (imaging screen can be a frosted glass) on the imaging screen 4, form a uniform hot spot, be imaged onto on opto-electronic conversion and the data-carrier store 6 through optical amplifier 5, its initial hot spot data of gathering of opto-electronic conversion and data-carrier store are set to reference point, when bridge deforms, hot spot can be moved on frosted glass, at this moment opto-electronic conversion and data-carrier store 6 compare the hot spot variation that collects by data processing software and reference point, can export the deflection of horizontal (directions X) and vertical (sedimentation) of uploading this point of bridge accurately.
By the transmitted light beam 8 of reflection and transmission prism 3, shine again on the reflection and transmission prism of next measuring point synchronizable optical reception and transfer device in the measuring process,, calculate the deflection of this point of bridge through imaging and the acquisition method identical with the front., can measure the deflection of each tested point of bridge according to this kind method successively forward, thereby finish the deformation measurement of whole bridge.The data of each measuring point receive by each synchronizable optical and transfer device carries out synchro measure and data storage, and are transferred to centralized control and communication device 10 through fieldbus, are transferred to remote monitoring center 11 by telecommunication system (wireless or wired).Can analyze the vibration characteristics of whole bridge over time according to distortion.Thereby realize the real-time monitoring of the deformation vibration of large bridge building.
The reflection and transmission prism 3 of synchronizable optical reception and transfer device reflects by a certain percentage and is meant: the reflectivity of the reflection and transmission prism of the first cover synchronizable optical reception and transfer device 9 is by 10%, the reflectivity of each synchronizable optical reception thereafter and the reflection and transmission prism of transfer device increases progressively by 5%, can make the measuring point number have 18 like this.Also can adjust satisfied length and the accuracy requirement that will measure bridge to the reflectivity of the first cover reflection and transmission prism and the reflectivity incremental change of back reflection optical prism thereof.
Remote monitoring center 11 can adopt the computing machine that signal processing software is housed in advance.Optical amplifier can adopt the camera lens of f16, f25, different focal such as f40, f50 according to measurement range and precision.
When at the two ends of bridge generating laser being installed, generating laser can be realized the real-time monitoring of long-span bridge vibration of beam and distortion then from two ends correlation in the middle part of bridge of bridge by above method.Also sectional is measured, and measurement effect and precision are unaffected.
Claims (6)
1. the monitoring device of a bridge vibration deformation, comprise a generating laser that is arranged on bridge one end or the arbitrary position of bridge length direction, or be separately positioned on two generating lasers at bridge two ends, it is characterized in that, the bridge that generating laser outgoing beam rectilinear direction is extended is provided with a plurality of monitoring points, a cover synchronizable optical all is set on each monitoring point receives and transfer device; Each synchronizable optical receives and transfer device is exported fieldbus of connection by signal wire separately, this fieldbus is connected to centralized control and the communication device that is in laser transmitter positions, and this centralized control and communication device and a remote monitoring center realize that by wireless or wired mode synchronizable optical receives and the transmission of transfer device Monitoring Data.
2, the monitoring device of bridge vibration deformation as claimed in claim 1, it is characterized in that, described synchronizable optical receives and transfer device comprises a reflection and transmission prism that is placed on the outgoing beam, be provided with imaging screen, optical amplifier and opto-electronic conversion and data-carrier store perpendicular to reflection and transmission prismatic reflection light direction, opto-electronic conversion and data-carrier store connect fieldbus by signal wire.
3, a kind of monitoring device method of real-time of using the bridge vibration deformation of claim 1 is characterized in that, comprises the steps:
(1) at first a generating laser is installed in an end or the arbitrary position of bridge length direction of bridge, or two generating lasers are installed respectively at the bridge two ends, the bridge that generating laser outgoing beam rectilinear direction is extended is provided with a plurality of monitoring points, one cover synchronizable optical all is set on each monitoring point receives and transfer device, generating laser receives and transfer device emission laser to the first cover synchronizable optical on its nearest monitoring point;
(2) first cover synchronizable optical receptions and transfer device carry out beam split by a certain percentage to the emergent light of generating laser, part reflection reception, imaging and collection storage; Part transmission is also transmitted backward; Thereafter each synchronizable optical reception and transfer device are handled equally to the synchronizable optical reception of front and the emergent light of transfer device;
(3) synchronizable optical of each measuring point receives and transfer device outputs to a fieldbus with the photoimaging data of the storage signal wire by separately, to centralized control that is in laser transmitter positions and communication device, centralized control and communication device arrive remote monitoring center by wireless or wire transmission through this fieldbus synchronous transmission.
4, as described in the claim 3 with the monitoring device method of real-time of the bridge vibration deformation of claim 1, it is characterized in that, the first cover synchronizable optical described in the step (2) receives and transfer device to the concrete grammar that the emergent light of generating laser carries out beam split by a certain percentage is: the first cover synchronizable optical receive and transfer device in adopt a reflection and transmission prism that is placed on the outgoing beam, this reflection and transmission prism carries out beam split with the outgoing beam of generating laser by a certain percentage, and a part of transmission and synchronizable optical sternward receive and the transfer device transmission; A part reflexes to imaging screen; Form a uniform hot spot, be input in opto-electronic conversion and the data-carrier store through optical amplifier again, its initial hot spot data of gathering of opto-electronic conversion and data-carrier store are set to reference point, when bridge generation vibration deformation, hot spot can be moved on imaging screen, at this moment opto-electronic conversion and data-carrier store compare hot spot variable quantity and the reference point that collects, by its accurate output bridge of signal wire that connects fieldbus at the horizontal and vertical deflection of this measuring point.
5, as described in the claim 3 with the monitoring device method of real-time of the bridge vibration deformation of claim 1, it is characterized in that, reception of synchronizable optical described in the step (2) and transfer device carry out beam split by a certain percentage and be meant: the reflectivity of the reflection and transmission prism of the first cover synchronizable optical reception and transfer device is by 10%, the reflectivity of each synchronizable optical reception thereafter and the reflection and transmission prism of transfer device increases progressively by 5%, makes the measuring point number satisfy length and the accuracy requirement that will measure bridge.
6, as described in the claim 3 with the monitoring device method of real-time of the bridge vibration deformation of claim 1, it is characterized in that, when at the two ends of bridge generating laser being installed described in the step (1), generating laser can receive and the transfer device correlation from the synchronizable optical of two ends on each monitoring point, bridge middle part of bridge, and the method for (2) then set by step～(3) realizes the bridge vibration of large span and the real-time monitoring of distortion.
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| CN2008101500771A CN101315274B (en) | 2008-06-19 | 2008-06-19 | Monitoring device and real-time monitoring method for bridge vibration deformation |
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| CN2008101500771A CN101315274B (en) | 2008-06-19 | 2008-06-19 | Monitoring device and real-time monitoring method for bridge vibration deformation |
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| CN101315274B CN101315274B (en) | 2011-06-01 |
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Cited By (21)
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| CN101718529B (en) * | 2009-11-30 | 2011-06-08 | 重庆大学 | Multi-beam deformation detecting device and use method thereof |
| CN102331237A (en) * | 2011-06-14 | 2012-01-25 | 长沙理工大学 | Laser settlement flexibility monitor |
| CN102889858A (en) * | 2012-10-19 | 2013-01-23 | 重庆交通大学 | Method for monitoring displacement of anchoring structure by using laser |
| CN103105140A (en) * | 2013-01-28 | 2013-05-15 | 唐山学院 | Large building deformation monitoring device and monitoring method through large building deformation monitoring device |
| CN103196384A (en) * | 2013-03-26 | 2013-07-10 | 辽宁工程技术大学 | Prism device used for deformation monitoring of dangerous slopes |
| CN103822580A (en) * | 2014-02-12 | 2014-05-28 | 上海交通大学 | Multi-point real-time measurement system and method of deformation and attitude of overlong frame |
| CN104197852A (en) * | 2014-09-05 | 2014-12-10 | 济南大学 | System for monitoring sinking and horizontal displacement of reservoir dam body |
| CN104792364A (en) * | 2015-04-10 | 2015-07-22 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Dynamic bridge parameter extracting system and dynamic bridge parameter extracting method based on laser Doppler |
| CN105181127A (en) * | 2015-11-05 | 2015-12-23 | 浙江安侣智能科技有限公司 | Bridge fault detection device |
| CN105486243A (en) * | 2015-12-24 | 2016-04-13 | 成都上甲光电科技有限公司 | Bridge flexibility monitoring system based on visible light imaging technology |
| CN106403825A (en) * | 2016-11-30 | 2017-02-15 | 中国冶集团有限公司 | Laser monitoring system of foundation ditch support pile horizontal displacement and method thereof |
| CN106918389A (en) * | 2017-03-23 | 2017-07-04 | 中冶建筑研究总院有限公司 | It is a kind of based on the vibration modal analysis method of doppler optical displacement method and its application |
| CN108431547A (en) * | 2015-12-15 | 2018-08-21 | 三菱电机株式会社 | Trolley measuring device and trolley measurement method |
| CN110030922A (en) * | 2018-01-11 | 2019-07-19 | 大族激光科技产业集团股份有限公司 | A kind of Multipoint synchronous measurement method and measuring system and storage medium |
| CN111089565A (en) * | 2019-12-30 | 2020-05-01 | 安徽理工大学 | Foundation settlement monitoring system based on laser measurement |
| CN111397589A (en) * | 2020-04-07 | 2020-07-10 | 四川省公路规划勘察设计研究院有限公司 | Deformation monitoring and measuring method |
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| CN115096191A (en) * | 2022-02-22 | 2022-09-23 | 中南大学 | Bridge multi-point displacement monitoring method based on tilt-shift camera |
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2008
- 2008-06-19 CN CN2008101500771A patent/CN101315274B/en not_active Expired - Fee Related
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| CN101718529B (en) * | 2009-11-30 | 2011-06-08 | 重庆大学 | Multi-beam deformation detecting device and use method thereof |
| CN102331237A (en) * | 2011-06-14 | 2012-01-25 | 长沙理工大学 | Laser settlement flexibility monitor |
| CN102331237B (en) * | 2011-06-14 | 2013-04-24 | 长沙理工大学 | Laser settlement flexibility monitor |
| CN102889858B (en) * | 2012-10-19 | 2015-04-22 | 重庆交通大学 | Method for monitoring displacement of anchoring structure by using laser |
| CN102889858A (en) * | 2012-10-19 | 2013-01-23 | 重庆交通大学 | Method for monitoring displacement of anchoring structure by using laser |
| CN103105140B (en) * | 2013-01-28 | 2016-03-09 | 唐山学院 | Building deformation monitoring device and the method with its monitoring |
| WO2014114226A1 (en) * | 2013-01-28 | 2014-07-31 | 唐山学院 | Apparatus for monitoring deformation of large building and monitoring method thereby |
| CN103105140A (en) * | 2013-01-28 | 2013-05-15 | 唐山学院 | Large building deformation monitoring device and monitoring method through large building deformation monitoring device |
| CN103196384A (en) * | 2013-03-26 | 2013-07-10 | 辽宁工程技术大学 | Prism device used for deformation monitoring of dangerous slopes |
| CN103196384B (en) * | 2013-03-26 | 2016-12-28 | 辽宁工程技术大学 | A kind of prism apparatus for dangerous slopes deformation monitoring |
| CN103822580A (en) * | 2014-02-12 | 2014-05-28 | 上海交通大学 | Multi-point real-time measurement system and method of deformation and attitude of overlong frame |
| CN104197852A (en) * | 2014-09-05 | 2014-12-10 | 济南大学 | System for monitoring sinking and horizontal displacement of reservoir dam body |
| CN104197852B (en) * | 2014-09-05 | 2016-08-24 | 济南大学 | Reservoir dam depression and horizontal displacement monitoring system |
| CN104792364A (en) * | 2015-04-10 | 2015-07-22 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Dynamic bridge parameter extracting system and dynamic bridge parameter extracting method based on laser Doppler |
| CN104792364B (en) * | 2015-04-10 | 2017-04-12 | 中铁大桥科学研究院有限公司 | Dynamic bridge parameter extracting system and dynamic bridge parameter extracting method based on laser Doppler |
| CN105181127A (en) * | 2015-11-05 | 2015-12-23 | 浙江安侣智能科技有限公司 | Bridge fault detection device |
| CN108431547A (en) * | 2015-12-15 | 2018-08-21 | 三菱电机株式会社 | Trolley measuring device and trolley measurement method |
| CN105486243A (en) * | 2015-12-24 | 2016-04-13 | 成都上甲光电科技有限公司 | Bridge flexibility monitoring system based on visible light imaging technology |
| CN106403825A (en) * | 2016-11-30 | 2017-02-15 | 中国冶集团有限公司 | Laser monitoring system of foundation ditch support pile horizontal displacement and method thereof |
| CN106918389A (en) * | 2017-03-23 | 2017-07-04 | 中冶建筑研究总院有限公司 | It is a kind of based on the vibration modal analysis method of doppler optical displacement method and its application |
| CN106918389B (en) * | 2017-03-23 | 2020-05-22 | 中冶建筑研究总院有限公司 | Vibration mode analysis method based on Doppler optical displacement method and application thereof |
| CN110030922A (en) * | 2018-01-11 | 2019-07-19 | 大族激光科技产业集团股份有限公司 | A kind of Multipoint synchronous measurement method and measuring system and storage medium |
| CN110030922B (en) * | 2018-01-11 | 2021-08-03 | 深圳市大族数控科技股份有限公司 | Multipoint synchronous measurement method and system and storage medium |
| CN111089565A (en) * | 2019-12-30 | 2020-05-01 | 安徽理工大学 | Foundation settlement monitoring system based on laser measurement |
| CN111397589A (en) * | 2020-04-07 | 2020-07-10 | 四川省公路规划勘察设计研究院有限公司 | Deformation monitoring and measuring method |
| CN114104108A (en) * | 2021-10-26 | 2022-03-01 | 苏州渭中科技发展有限公司 | Chassis structure suitable for new energy automobile |
| CN114166140A (en) * | 2021-11-10 | 2022-03-11 | 浙江省轻工业品质量检验研究院 | Real-time monitoring system for deformation of top protection beam in rock climbing place |
| CN115096191A (en) * | 2022-02-22 | 2022-09-23 | 中南大学 | Bridge multi-point displacement monitoring method based on tilt-shift camera |
| CN115096191B (en) * | 2022-02-22 | 2023-06-06 | 中南大学 | Bridge multi-point displacement monitoring method based on axis displacement camera |
| CN115183731A (en) * | 2022-06-20 | 2022-10-14 | 成都飞机工业（集团）有限责任公司 | Wing surface monitoring system and sensor arrangement method thereof |
| CN116379954A (en) * | 2023-06-05 | 2023-07-04 | 西昌学院 | Deformation condition monitoring device and tunnel main body monitoring system |
| CN116379954B (en) * | 2023-06-05 | 2023-08-01 | 西昌学院 | Deformation condition monitoring device and tunnel main body monitoring system |
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