CN204963807U - Laser benchmark monitoring devices in tunnel deformation monitoring - Google Patents
Laser benchmark monitoring devices in tunnel deformation monitoring Download PDFInfo
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- CN204963807U CN204963807U CN201520430553.0U CN201520430553U CN204963807U CN 204963807 U CN204963807 U CN 204963807U CN 201520430553 U CN201520430553 U CN 201520430553U CN 204963807 U CN204963807 U CN 204963807U
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Abstract
The utility model discloses a laser benchmark monitoring devices in tunnel deformation monitoring, including setting up a set of supervision image sensor and the the control unit who organizes the rear at the laser instrument, image sensor is measured in the place ahead of laser instrument group, keep watch on image sensor with it all is equipped with CCD camera and wireless transmission module to measure image sensor, keep watch on image sensor with it passes through separately respectively to measure image sensor wireless transmission module with the control unit carries out data transmission. The utility model discloses a keep watch on image sensor and detect the position appearance of laser instrument group, it is suspended by the bulk registration of measurement station data when the position appearance of laser instrument group changes, and then the influence of laser instrument histotope appearance change to the system accuracy is fallen in the filtration to reduce the laser instrument and take place the influence of position appearance change to measuring result. Thereby improve the detection precision of system, the gesture of solving laser instrument group is from stability problem.
Description
Technical field
The utility model relates to a kind of benchmark monitoring method, the laser datum monitoring device 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 utility model, 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 utility model is taked for the technical matters existed in solution known technology is: the laser datum monitoring device in a kind of tunnel deformation monitoring, comprise the one group of monitoring picture sensor and control module that are arranged on laser array rear, the front of described laser array is measurement image sensor, does not have relative displacement between described laser array and described monitoring picture sensor; Described monitoring picture sensor and described measurement image sensor are equipped with CCD camera and wireless transport module, and described monitoring picture sensor and described measurement image sensor carry out data transmission respectively by respective described wireless transport module and described control module.
The advantage that the utility model has and good effect are: by adopting the structure 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 detects that the laser array be rigidly fixed on reference field has pose to change, 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 of the utility model application.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, the laser datum monitoring device in a kind of tunnel deformation monitoring, comprise the one group of monitoring picture sensor and control module that are arranged on laser array rear, the front of described laser array is measurement image sensor; Described monitoring picture sensor and described measurement image sensor are equipped with CCD camera and wireless transport module, and described monitoring picture sensor and described measurement image sensor carry out data transmission respectively by respective described wireless transport module and described control module.
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 utility model 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 preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model 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 utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection domain of the present utility model.
Claims (1)
1. the laser datum monitoring device in a tunnel deformation monitoring, it is characterized in that, comprise the one group of monitoring picture sensor and control module that are arranged on laser array rear, the front of described laser array is measurement image sensor, does not have relative displacement between described laser array and described monitoring picture sensor; Described monitoring picture sensor and described measurement image sensor are equipped with CCD camera and wireless transport module, and described monitoring picture sensor and described measurement image sensor carry out data transmission respectively by respective described wireless transport module and described control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520430553.0U CN204963807U (en) | 2015-06-19 | 2015-06-19 | Laser benchmark monitoring devices in tunnel deformation monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520430553.0U CN204963807U (en) | 2015-06-19 | 2015-06-19 | Laser benchmark monitoring devices in tunnel deformation monitoring |
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| Publication Number | Publication Date |
|---|---|
| CN204963807U true CN204963807U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520430553.0U Active CN204963807U (en) | 2015-06-19 | 2015-06-19 | Laser benchmark monitoring devices in tunnel deformation monitoring |
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| CN (1) | CN204963807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808371A (en) * | 2017-09-15 | 2018-03-16 | 长安大学 | A kind of vehicular tunnel-liner surface crack image-pickup method |
| CN112229340A (en) * | 2020-09-04 | 2021-01-15 | 国网浙江省电力有限公司丽水供电公司 | Tower body structure developments horizontal deformation monitoring devices based on laser projection |
-
2015
- 2015-06-19 CN CN201520430553.0U patent/CN204963807U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107808371A (en) * | 2017-09-15 | 2018-03-16 | 长安大学 | A kind of vehicular tunnel-liner surface crack image-pickup method |
| CN107808371B (en) * | 2017-09-15 | 2020-07-03 | 长安大学 | Vehicle-mounted tunnel lining surface crack image acquisition method |
| CN112229340A (en) * | 2020-09-04 | 2021-01-15 | 国网浙江省电力有限公司丽水供电公司 | Tower body structure developments horizontal deformation monitoring devices based on laser projection |
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