CN1912536A - Multi-point displacement/deflection detection and monitoring device and method - Google Patents
Multi-point displacement/deflection detection and monitoring device and method Download PDFInfo
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- CN1912536A CN1912536A CN 200610095084 CN200610095084A CN1912536A CN 1912536 A CN1912536 A CN 1912536A CN 200610095084 CN200610095084 CN 200610095084 CN 200610095084 A CN200610095084 A CN 200610095084A CN 1912536 A CN1912536 A CN 1912536A
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Abstract
A detection device of multiple displacement /deflection is prepared as setting projection target at lens end of shooting equipment, sticking film with accurate scale on back of projection target, setting n numbers of leaser emitters separately at each point to be detected and aiming them to projection target for forming light spot used on shooting equipment detection through face plate.
Description
Technical field
The present invention relates to be used to detect and monitor deflection of bridge span, land subsidence, building sinking and mobile displacement or amount of deflection detection and device for monitoring and monitoring method, especially utilize LASER Light Source to carry out the device and method of displacement or deflection metrology.
Background technology
Detect that deflection of bridge span, land subsidence, massif move, building sink and move in modern road and bridge, play an important role in building.In the prior art, be used to detect and monitor the apparatus and method that deflection of bridge span, massif move and mostly can only survey single-point, and can not measure the displacement or the amount of deflection of multiple spot simultaneously.Based on the most typical photoelectric measurement method of image-forming principle, be that a luminous target is fixed on the measured point for example, the imaging len of photoelectricity camera system is imaged on luminous target on the detector.Photograph two width of cloth images that target changes front and back by video camera, and obtain the imaging multiplying power, calculate displacement with computing machine according to the imaging relations of optical lens.Chinese patent 200310057473.6 disclosed " displacement/deflection detection and monitoring device and method " etc. and for example, these apparatus and method can only be man-to-man measurements, can't utilize a video camera to take and measure a plurality of targets, therefore increase the measurement cost greatly.Chinese patent 200510020324.2 disclosed " demarcating own coding imaging method multiple spot dynamic deflection/displacement measuring device certainly " for another example, though can finish measurement to the multiple spot deflection/displacement, but it is when measuring the multiple spot deflection/displacement, because measurement range is very wide, measuring accuracy can be very low, can't satisfy high-precision requirement.
As mentioned above, being limited in scope of this current measuring methods or use, perhaps precision is not enough, seriously restricts it and is detecting and monitoring deflection of bridge span, land subsidence, massif move, building sink and the real promotion and application of aspect such as mobile.
Summary of the invention
At the prior art above shortcomings, the object of the present invention is to provide a kind of usable range wide, precision does not reduce for single-point deflection/displacement measuring equipment, and can detect and monitor displacement/deflection detection and device for monitoring and methods such as bridge, ground, massif, building for a long time, at a distance.
The object of the present invention is achieved like this: multi-point displacement/deflection detects and monitoring device, comprises generating laser, projection target, picture pick-up device and computing machine; It is characterized in that the projection target is located at the camera end of picture pick-up device; The film of accurate sign scale is posted in projection target back; Described generating laser is that n is located at each tested point respectively, and all aims at the projection target, sees through panel and is formed for the hot spot that picture pick-up device detects.
Described Device Testing and monitoring method, step is as follows:
1) utilize the scale film behind the projection target that the scale benchmark is demarcated: at timing signal, at first on screen, specify arbitrarily a bit as zero point, project on this aspect with beam of laser near screen then, confirm that from software this point is zero point, respectively get a bit in the appropriate location up and down at this zero point afterwards, confirm its direction and distance by this reading of scale on film, and on software interface, confirm with respect to zero point;
2) after the demarcation, a plurality of generating lasers are placed different tested points, and adjust each transmitter of laser with laser directive projection target, the place forms a plurality of laser faculas at the projection target;
3) when certain tested point is subjected to displacement, corresponding displacement will take place in the laser facula that projects on the projection panel, and picture pick-up device absorbs the hot spot signal and imports signal into computer by computer interface; Computer carries out computing to the position of each hot spot after the light signal that collects is carried out pre-service, and compares with predefined null displacement point, and the displacement size that calculates each hot spot relative zero is also stored;
4) according to the data of storage, can detect sense of displacement, size and the vibration situation of each tested point, draw analysis diagram easily, the long-term tendency of the displacement of drawing.
Compared to existing technology, the present invention has following advantage:
1, can measure the displacement or the amount of deflection of multiple spot simultaneously, not increase substantially and measure cost;
2, the measuring accuracy of a plurality of points is identical with the measuring accuracy of a single point, can not reduce precision because of measuring multiple spot simultaneously;
3, be skillfully constructed, reasonable in design, simple in structure, implement easily.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the structural representation of displacement/deflection detection of the present invention and monitoring device;
Fig. 2 is the laser facula synoptic diagram that projection target of the present invention is put on;
Fig. 3 is the corresponding mobile synoptic diagram with hot spot that moves of generating laser.
Embodiment
Shown in Figure 1, multi-point displacement/deflection detects and monitoring device, by n generating laser 1, and projection target 2, picture pick-up device 3 and computing machine 4 constitute; Generating laser 1 is located at tested point, and aims at projection target panel 2; Projection target 2 is located at the camera end of picture pick-up device 3; The film of accurate sign scale is posted in projection target 2 back.Picture pick-up device 3 is connected with computing machine 4 by interface.Referring to Fig. 2, when laser beam projected to projection target 2, laser beam formed hot spot 5 through panel and is used for the picture pick-up device detection on film.Adjust the direction of each generating laser 1 and aim at projection target 2, its hot spot 5 that forms on projection target 2 is not overlapped with other hot spot.
Multi-point displacement/deflection detects and monitoring method, comprises the steps:
1, utilize the scale film behind the projection target that the scale benchmark is demarcated: at timing signal, at first on screen, specify arbitrarily a bit as zero point, project on this aspect with beam of laser near screen then, confirm that from software this point is zero point, respectively get a bit in the appropriate location up and down at this zero point afterwards, confirm its direction and distance by this reading of scale on film, and on software interface, confirm with respect to zero point;
2, after the demarcation, a plurality of generating lasers are placed different tested points, and adjust each transmitter of laser with laser directive projection target, the place forms a plurality of laser faculas at the projection target;
3, when certain tested point is subjected to displacement, corresponding displacement will take place in the laser facula that projects on the projection panel, and picture pick-up device absorbs the hot spot signal and imports signal into computer by computer interface; Computer to the light signal that collects discern with pre-service after, computing is carried out in the position of each hot spot, and compares with predefined null displacement point, calculate the displacement size of each hot spot relative zero and stored;
4, according to the data of storage, can detect sense of displacement, size and the vibration situation of each tested point, draw analysis diagram easily, the long-term tendency of the displacement of drawing.
During work, it is far away and place the projection target of point of fixity to put on to distance that generating laser sends laser projections.4 pairs of images that obtain of computing machine are discerned and pre-service, confirm the pairing generating laser of each hot spot, handle respectively then.
When tested point was subjected to displacement and vibrate, generating laser 1 moved thereupon, projected projection panel 2 formed hot spots by generating laser 1 emitted laser signal and will be subjected to displacement pro rata thereupon and vibrate.As shown in Figure 3, picture pick-up device 3 absorbs the hot spot signals and imports signal into computer by computer interface; Computer to the light signal that collects discern with pre-service after, carry out the computing of facula position.And compare with predefined null displacement point, calculate the displacement size of relative zero, and stored; Data according to storage can draw analysis diagram, the long-term tendency of the each point displacement of drawing easily; And obtain data by network remote and carry out correlation analysis.
In like manner, moving of all the other each points also can be put on the generation corresponding mobile at projection target, and disposal route is the same with a single point.
Claims (2)
1, multi-point displacement/deflection detects and monitoring device, comprises generating laser (1), projection target (2), picture pick-up device (3) and computing machine (4); It is characterized in that projection target (2) is located at the camera end of picture pick-up device (3); The film of accurate sign scale is posted in projection target (2) back; Described generating laser (1) is for n and be located at each tested point respectively, and aims at projection target (2), sees through panel and is formed for the hot spot that picture pick-up device detects.
2, according to described Device Testing of claim 1 and monitoring method, comprise the steps:
1) utilize the scale film behind the projection target that the scale benchmark is demarcated: at timing signal, at first on screen, specify arbitrarily a bit as zero point, project on this aspect with beam of laser near screen then, confirm that from software this point is zero point, respectively get a bit in the appropriate location up and down at this zero point afterwards, confirm its direction and distance by this reading of scale on film, and on software interface, confirm with respect to zero point;
2) after the demarcation, a plurality of generating lasers are placed different tested points, and adjust each transmitter of laser with laser directive projection target, the place forms a plurality of laser faculas at the projection target;
3) when certain tested point is subjected to displacement, corresponding displacement will take place in the laser facula that projects on the projection panel, and picture pick-up device absorbs the hot spot signal and imports signal into computer by computer interface; Computer to the light signal that collects discern with pre-service after, computing is carried out in the position of each hot spot, and compares with predefined null displacement point, calculate the displacement size of each hot spot relative zero and stored;
4) according to the data of storage, can detect sense of displacement, size and the vibration situation of each tested point, draw analysis diagram easily, the long-term tendency of the displacement of drawing.
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| CN 200610095084 CN1912536A (en) | 2006-08-31 | 2006-08-31 | Multi-point displacement/deflection detection and monitoring device and method |
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| CN102275092A (en) * | 2010-06-11 | 2011-12-14 | 上海电气集团上海电机厂有限公司 | Method for directly measuring deflection of double-armature rotor shaft |
| CN104884924A (en) * | 2013-01-09 | 2015-09-02 | 株式会社Ntt设施 | Building safety verification system and building safety verification method |
| CN105865735A (en) * | 2016-04-29 | 2016-08-17 | 浙江大学 | Method for bridge vibration testing and dynamic property recognition based on video monitoring |
| CN106289134A (en) * | 2016-08-31 | 2017-01-04 | 北京燕宏达铁路设备有限公司 | A kind of displacement monitoring method and system |
| CN106931897A (en) * | 2017-03-31 | 2017-07-07 | 哈尔滨工程大学 | Vibration damping flexibility connection pipe deformation measuring device |
| CN107631693A (en) * | 2017-09-14 | 2018-01-26 | 重庆大学 | A kind of two-dimentional multiple spot laser displacement measurement system |
| CN109235729A (en) * | 2018-09-21 | 2019-01-18 | 中冶成都勘察研究总院有限公司 | A kind of superimposed sheet installation check method in place |
| CN109269466A (en) * | 2018-10-30 | 2019-01-25 | 兰州交通大学 | Target surface relative pose measurement method and system based on characteristic point |
| CN109443674A (en) * | 2019-01-05 | 2019-03-08 | 深圳市清华苑工程结构鉴定有限公司 | A kind of beam deflection detection device and its detection method |
| CN109631768A (en) * | 2018-12-19 | 2019-04-16 | 嘉兴同禾传感技术有限公司 | A kind of works two-dimension displacement monitoring device and method |
| CN110487197A (en) * | 2019-09-03 | 2019-11-22 | 厦门大学嘉庚学院 | A kind of bridge dynamic degree of disturbing real-time monitoring system applied based on ccd image sensor and laser |
| CN112013811A (en) * | 2020-09-01 | 2020-12-01 | 昆山市房屋安全鉴定管理站 | House structure settlement monitoring device based on vision measurement |
| CN112368540A (en) * | 2018-10-29 | 2021-02-12 | 松下知识产权经营株式会社 | Point inspection device and point inspection method |
| CN112857212A (en) * | 2020-12-30 | 2021-05-28 | 张东昱 | Large-scale structure multipoint displacement and rotation response synchronous monitoring system and data analysis method thereof |
| CN109631768B (en) * | 2018-12-19 | 2024-04-26 | 浙江同禾传感技术有限公司 | Device and method for monitoring two-dimensional displacement of structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275092B (en) * | 2010-06-11 | 2013-04-03 | 上海电气集团上海电机厂有限公司 | Method for directly measuring deflection of double-armature rotor shaft |
| CN102275092A (en) * | 2010-06-11 | 2011-12-14 | 上海电气集团上海电机厂有限公司 | Method for directly measuring deflection of double-armature rotor shaft |
| CN104884924A (en) * | 2013-01-09 | 2015-09-02 | 株式会社Ntt设施 | Building safety verification system and building safety verification method |
| US10429269B2 (en) | 2013-01-09 | 2019-10-01 | Ntt Facilities, Inc. | Building safety verification system and building safety verification method |
| CN105865735A (en) * | 2016-04-29 | 2016-08-17 | 浙江大学 | Method for bridge vibration testing and dynamic property recognition based on video monitoring |
| CN105865735B (en) * | 2016-04-29 | 2018-05-08 | 浙江大学 | A kind of bridge vibration test and dynamic characteristics recognition methods based on video monitoring |
| CN106289134A (en) * | 2016-08-31 | 2017-01-04 | 北京燕宏达铁路设备有限公司 | A kind of displacement monitoring method and system |
| CN106931897B (en) * | 2017-03-31 | 2019-09-27 | 哈尔滨工程大学 | Vibration damping flexibility connection pipe deformation measuring device |
| CN106931897A (en) * | 2017-03-31 | 2017-07-07 | 哈尔滨工程大学 | Vibration damping flexibility connection pipe deformation measuring device |
| CN107631693B (en) * | 2017-09-14 | 2020-02-07 | 重庆大学 | Two-dimensional multipoint laser displacement measurement system |
| CN107631693A (en) * | 2017-09-14 | 2018-01-26 | 重庆大学 | A kind of two-dimentional multiple spot laser displacement measurement system |
| CN109235729A (en) * | 2018-09-21 | 2019-01-18 | 中冶成都勘察研究总院有限公司 | A kind of superimposed sheet installation check method in place |
| CN112368540A (en) * | 2018-10-29 | 2021-02-12 | 松下知识产权经营株式会社 | Point inspection device and point inspection method |
| CN109269466A (en) * | 2018-10-30 | 2019-01-25 | 兰州交通大学 | Target surface relative pose measurement method and system based on characteristic point |
| CN109631768A (en) * | 2018-12-19 | 2019-04-16 | 嘉兴同禾传感技术有限公司 | A kind of works two-dimension displacement monitoring device and method |
| CN109631768B (en) * | 2018-12-19 | 2024-04-26 | 浙江同禾传感技术有限公司 | Device and method for monitoring two-dimensional displacement of structure |
| CN109443674A (en) * | 2019-01-05 | 2019-03-08 | 深圳市清华苑工程结构鉴定有限公司 | A kind of beam deflection detection device and its detection method |
| CN110487197A (en) * | 2019-09-03 | 2019-11-22 | 厦门大学嘉庚学院 | A kind of bridge dynamic degree of disturbing real-time monitoring system applied based on ccd image sensor and laser |
| CN112013811A (en) * | 2020-09-01 | 2020-12-01 | 昆山市房屋安全鉴定管理站 | House structure settlement monitoring device based on vision measurement |
| CN112857212A (en) * | 2020-12-30 | 2021-05-28 | 张东昱 | Large-scale structure multipoint displacement and rotation response synchronous monitoring system and data analysis method thereof |
| WO2022142065A1 (en) * | 2020-12-30 | 2022-07-07 | 张东昱 | Synchronous monitoring system for multi-point displacement and rotation response of large-scale structure and data analysis method therefor |
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