CN104897075A - Laser reference monitoring method in tunnel deformation monitoring - Google Patents
Laser reference monitoring method in tunnel deformation monitoring Download PDFInfo
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- CN104897075A CN104897075A CN201510346368.8A CN201510346368A CN104897075A CN 104897075 A CN104897075 A CN 104897075A CN 201510346368 A CN201510346368 A CN 201510346368A CN 104897075 A CN104897075 A CN 104897075A
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- image sensor
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- laser set
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Abstract
The invention discloses a laser reference monitoring method in tunnel deformation monitoring; a monitor image sensor is arranged behind a laser set; a measure image sensor is arranged in front of the laser set; the monitor image sensor transmits monitor facula data to a control unit; the control unit determines whether a facula position on the monitor image sensor changes or not, if yes, stop accumulation recording of tested spot data transmitted by the measure image sensor, if not, continue collecting the tested spot data transmitted by the measure image sensor, and carrying out accumulation recording. The monitor image sensor can detect a pose of the laser set; when the pose of the laser set changes, temporarily stopping accumulation recording of the tested spot data, thus filtering influences against system precision by the pose changes of the laser set, and reducing influences against a measure result by the pose changes of the laser set; the laser reference monitoring method can improve system detection precision, and solves pose self stabilization problems of the laser set.
Description
Technical field
The present invention relates to a kind of benchmark monitoring method, the laser datum monitoring method particularly in a kind of tunnel deformation monitoring.
Background technology
At present, the various measurement means for tunnel safety construction all has a great development, but all there is certain problem.Utilize fixed laser Shu Zuowei benchmark, machine vision and optical filtering transmission screen are as monitoring means, and microwave communication, as Long-range Data Transmission method, can uninterruptedly be monitored cumulative data and make the default responses such as warning, early warning by automatic analysis.The pose stabilization of laser instrument self governs the image space of laser beam at measured point annex.If displacement or angle change appear in laser instrument in observation process, then the projected position of laser beam on the xsect of measured point will change, the accuracy of detection of direct influential system.For ensureing the stability of reference laser beam interferes self, needing setting benchmark monitoring system, getting rid of the impact of reference beam change on monitoring system.Finally to realize the function of high precision, easily extensible range, increasingly automated and Real-Time Monitoring.
Summary of the invention
The present invention, for solving in known technology the technical matters that exists and laser datum monitoring method in providing a kind of tunnel deformation to monitor, adopts the method that the laser array unstability of transmitted reference laser beam can be avoided the impact of monitoring system accuracy of detection.
The technical scheme that the present invention takes for the technical matters existed in solution known technology is: the laser datum monitoring method in a kind of tunnel deformation monitoring, arrange one group of monitoring picture sensor at the rear of laser array, the front of described laser array is measurement image sensor; Supervision hot spot data are transferred to control module by described monitoring picture sensor, described control module judges whether the facula position on monitoring picture sensor changes, if so, the bulk registration of the measured point data to described measurement image sensor transmissions is stopped; If not, continue the measured point data of the described measurement image sensor transmissions of collection and carry out bulk registration.
The advantage that the present invention has and good effect are: at laser array rear fixed surveillance imageing sensor, because the change in location of monitoring picture sensor is very little, can think that the relative displacement between itself and laser array is unchanged, namely think that the change of monitoring picture sensor glazing spot is completely because the shift in position of laser array causes.When monitoring picture sensor detect the laser array be rigidly fixed on reference field have torsion or displacement time, control module suspends the bulk registration of measured point data, bulk registration is continued again after laser array is stable, and then the torsion of laser array self or displacement can be filtered out on the impact of system accuracy, to reduce the impact of laser instrument generation pose change on measurement result.Thus improve the accuracy of detection of system, solve the pose its self-stabilization problem of laser array.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that the present invention applies;
Fig. 2 is the workflow diagram of control module of the present invention.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 and Fig. 2, the laser datum monitoring method in a kind of tunnel deformation monitoring, arrange one group of monitoring picture sensor at the rear of laser array, the front of described laser array is measurement image sensor; Supervision hot spot data are transferred to control module by described monitoring picture sensor, described control module judges whether the facula position on monitoring picture sensor changes, if so, the bulk registration of the measured point data to described measurement image sensor transmissions is stopped; If not, continue the measured point data of the described measurement image sensor transmissions of collection and carry out bulk registration.
When carrying out tunnel deformation monitoring, the laser array of transmitted reference laser beam is rigidly fixed on reference field, and measurement image sensor is arranged on monitoring section, namely near face; Laser array is arranged on reference field, by laser beam to measurement image sensor passes benchmark, realizes measuring.
Usual laser array twists or displacement is all because the judder in the external world or personnel's accident collision cause, so its deformation velocity is all very fast, and amplitude is less, and whole deformation process just can terminate within very short time.In order to filter out the torsion of laser array self or displacement to the impact of tunnel deformation monitoring system precision, the present invention installs one group of monitoring picture sensor additional on the secondary lining in tunnel, in the opposite direction of laser array.Because the secondary lining displacement in tunnel is very little, substantially at grade, so, can think there is no relative displacement between laser array and monitoring picture sensor.
When the position of laser array twists, the hot spot on monitoring picture sensor and measurement image sensor all can change; And when monitoring picture sensor twists, because its windup-degree is very little, so the position thought and can not change images themselves hot spot point can be similar to; That is, the change of monitoring picture sensor glazing spot is completely because the shift in position of laser array causes.
When the facula position on monitoring picture sensor changes, illustrate that laser array there occurs movement, at this moment control module judges, and in the time interval that facula position changes on monitoring picture sensor, stop the bulk registration to measured point data, when change in location stops, continuing image data.The torsion of laser array self or displacement are so just filtered out to the impact of system accuracy.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (1)
1. the laser datum monitoring method in a tunnel deformation monitoring, it is characterized in that, one group of monitoring picture sensor is set at the rear of laser array, the front of laser array is measurement image sensor, supervision hot spot data are transferred to control module by described monitoring picture sensor, described control module judges whether the facula position on monitoring picture sensor changes, if, stop the bulk registration to the measured point data of described measurement image sensor transmissions, if not, continue the measured point data of the described measurement image sensor transmissions of collection and carry out bulk registration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510346368.8A CN104897075A (en) | 2015-06-19 | 2015-06-19 | Laser reference monitoring method in tunnel deformation monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510346368.8A CN104897075A (en) | 2015-06-19 | 2015-06-19 | Laser reference monitoring method in tunnel deformation monitoring |
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| Publication Number | Publication Date |
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| CN104897075A true CN104897075A (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510346368.8A Pending CN104897075A (en) | 2015-06-19 | 2015-06-19 | Laser reference monitoring method in tunnel deformation monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738967A (en) * | 2016-02-26 | 2016-07-06 | 王刚 | Road dangerous foreign matter monitoring device |
| CN108917631A (en) * | 2018-03-01 | 2018-11-30 | 上海同岩土木工程科技股份有限公司 | A kind of tunnel safety step pitch on-Line Monitor Device and its monitoring method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664494A (en) * | 2005-03-23 | 2005-09-07 | 西安交通大学 | Laser dam safety monitoring method |
| CN101063751A (en) * | 2007-04-06 | 2007-10-31 | 中国科学院上海光学精密机械研究所 | Method and arrangement for real time monitoring laser luminous spot and light path automatically collimating |
| CN203024737U (en) * | 2013-01-28 | 2013-06-26 | 唐山学院 | Deformation monitoring device for large-scale building |
| CN104180759A (en) * | 2014-09-05 | 2014-12-03 | 济南大学 | Reservoir dam body settlement and horizontal displacement datum point detecting device and method |
-
2015
- 2015-06-19 CN CN201510346368.8A patent/CN104897075A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664494A (en) * | 2005-03-23 | 2005-09-07 | 西安交通大学 | Laser dam safety monitoring method |
| CN101063751A (en) * | 2007-04-06 | 2007-10-31 | 中国科学院上海光学精密机械研究所 | Method and arrangement for real time monitoring laser luminous spot and light path automatically collimating |
| CN203024737U (en) * | 2013-01-28 | 2013-06-26 | 唐山学院 | Deformation monitoring device for large-scale building |
| CN104180759A (en) * | 2014-09-05 | 2014-12-03 | 济南大学 | Reservoir dam body settlement and horizontal displacement datum point detecting device and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105738967A (en) * | 2016-02-26 | 2016-07-06 | 王刚 | Road dangerous foreign matter monitoring device |
| CN108917631A (en) * | 2018-03-01 | 2018-11-30 | 上海同岩土木工程科技股份有限公司 | A kind of tunnel safety step pitch on-Line Monitor Device and its monitoring method |
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Inventor after: Qiu Zurong Inventor after: Hu Wenchuan Inventor after: Liu Jiachen Inventor after: Qiu Zurong, Hu Wenchuan, Liu Jiachen, Qin Guohua Inventor before: Qiu Zurong Inventor before: Qin Guohua Inventor before: Liu Jiachen Inventor before: Qiu Zurong, Qin Guohua, Liu Jiachen, Hu Wenchuan |
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Application publication date: 20150909 |