CN103940357A - Non-contact spatial displacement measurement device - Google Patents
Non-contact spatial displacement measurement device Download PDFInfo
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- CN103940357A CN103940357A CN201410116266.2A CN201410116266A CN103940357A CN 103940357 A CN103940357 A CN 103940357A CN 201410116266 A CN201410116266 A CN 201410116266A CN 103940357 A CN103940357 A CN 103940357A
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Abstract
The invention discloses a non-contact spatial displacement measurement device. The non-contact spatial displacement measurement device comprises a laser range finder arranged on the reference point, an imaging transmitting plate arranged on the monitoring point, an image collection device arranged on the side, with the back to the laser range finder, of the imaging transmitting plate, a drive module and a control module. The imaging transmitting plate is used for receiving light emitted by the laser range finder and forming light spots. The image collection device is used for collecting the light spots formed on the imaging transmitting plate and connected with the drive module, and the drive module is connected with the control module. The non-contact spatial displacement measurement device is large in measuring range, high in measurement accuracy, small in power consumption and capable of measuring prostration and hypsokinesis from front to back and forward and reverse rotation deformation, relative to a laser device, of a position sensor, solves the problems in the prior art and can be widely used for monitoring deformation of engineering buildings under the condition of geological disasters, and the measuring range is convenient to adjust.
Description
Technical field
The present invention relates to a kind of space displacement measurement mechanism, be specifically related to the contactless space displacement measurement mechanism of monitoring works building distortion under a kind of geologic hazard condition.
Background technology
Existing deformation monitoring kind is a lot, mainly utilize professional instrument and sensor to the metaboly of deformable body continue observation, to deformable body Deformation Behavior is analyzed and the developing state of deformable body distortion is predicted etc. work in every, in precise engineering survey, the most representative deformable body has tunnel, bridge, highway, dam, side slope, subway, high-rise etc.The content of deformation monitoring, determines according to the character of deformable body and ground situation, it is mainly still observed the change of distance between measured body horizontal shift, perpendicular displacement and point of fixity and measured body.
At present, publication number is that the patent of invention of CN103344185A discloses a kind of contactless displacement automated watch-keeping facility, it mainly adopts at reference point (also claiming reference point) light source emitter is set, the setting position sensor that (also claims monitoring point) in measured point, by light source emitter to position transducer utilizing emitted light, position transducer gathers facula position to be changed, measure the deformation of measured point, there is following shortcoming in above-mentioned monitoring device: 1,, owing to being subject to the impact of processing technology, the photosurface maximum of existing position transducer can only be worked into 20*20mm
2, cause the measurement range of said apparatus less, in conventional engineering survey, there is significant limitation; 2,, in the time of light source run-off the straight, there is larger skew in the hot spot point of laser beam on position transducer, cause measuring error, and the distance of light source and position transducer is far away, is offset more obvious; 3, while work under daylight or high light, larger on the impact of laser beam, affect accuracy of measurement; 4, light source cannot be realized automatic control, cannot reduce the power consumption of light source; 5, cannot face upward and be out of shape along reverse rotation with respect to the front and back volt of laser instrument by measuring position sensor.
Summary of the invention
In order to solve, the range that prior art exists is little, measuring error is large, power consumption is high, cannot measure that position, monitoring point sensor is faced upward with respect to the front and back volt of laser instrument and along the problem of reverse rotation distortion, the invention provides that a kind of range is large, accuracy of measurement is high, low in energy consumption, can measuring position sensor face upward with respect to the front and back volt of laser instrument and along reverse rotation distortion, range contactless space displacement measurement mechanism easy to adjust.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of contactless space displacement measurement mechanism, comprise the laser range finder that is arranged on reference point place, also comprise be arranged on monitoring point place the saturating plate of imaging, be arranged on image collecting device and driver module and the control module of the saturating backboard of imaging to laser range finder one side, the saturating plate of described imaging is for receiving the light that laser range finder sends and forming hot spot, described image collecting device is for gathering the hot spot forming on the saturating plate of imaging, and described image collecting device is connected with driver module, driver module is connected with control module.
Preferably, described image collector is set to front and is provided with the two-dimensional CCD imageing sensor of wide-angle lens.
Preferably, described laser range finder is arranged on stadimeter support, described stadimeter support is fixedly mounted on reference point place, described image collecting device is arranged on erecting frame, on described erecting frame, be arranged on monitoring point place, the saturating plate of described imaging is movably arranged on the front of image collecting device by saturating panel guide, and described panel guide is arranged on erecting frame, on the saturating plate of described imaging, range adjuster bar is installed, described range adjuster bar is threaded with erecting frame.
Preferably, be provided with the first radio-frequency module in described laser ranging, image collector is set up and is provided with the second radio-frequency module and data processing and display module, and described the second radio-frequency module, data processing and display module are all connected with control module electric signal.
Preferably, on described laser range finder, light concentrator is installed, the front of the saturating plate of described imaging is provided with narrow-band filter.
Preferably, on described laser range finder, the first double-shaft tilt angle sensor and automatic flat-mounting device are also installed.
Preferably, on described panel guide or on range adjuster bar, be provided with scale.
Preferably, described erecting frame is arranged on two-dimentional automatic displacement platform.
Preferably, on described erecting frame, the second double-shaft tilt angle sensor is installed.
The present invention adopts imaging technique, irradiate the saturating plate of imaging by laser range finder Emission Lasers bundle and form hot spot, the change in location that then reads hot spot by image collecting device is carried out the measurement of engineering project deformation, and range is large, limitation is little, adapt to telemeasurement, accuracy is high, before the saturating plate of imaging, install narrow-band filter additional, laser range finder installs light concentrator additional, reduces the remote impact on laser beam, and the surround lighting beyond the laser beam of filtering simultaneously light wave, reduces high light to the impact of measuring, and improves measuring accuracy, in the time that needs are measured, control module is launched start working signal by the second radio-frequency module to the first radio-frequency module on laser range finder, laser range finder starts to find range after receiving signal, and data measured is stored, the data processing that image collector is set up and display module complete after the dissection process of hot spot, read the range data on laser range finder by the second radio-frequency module and the first radio-frequency module, after reading out data completes, transmit, control laser range finder is closed, can effectively reduce the energy consumption of laser range finder by above-mentioned functions, the second double-shaft tilt angle sensor is installed on erecting frame, can be measured the imageing sensor of monitoring point and face upward and be out of shape along reverse rotation with respect to the front and back volt of laser instrument, on the saturating plate of imaging, install range adjuster bar additional, make distance capable of regulating between the saturating plate of imaging and image collecting device, expanded acquisition range or the range of image collecting device, and be provided with scale on range adjuster bar or saturating panel guide, convenient scene regulates measurement mechanism, automatic flat-mounting device and the first double-shaft tilt angle sensor are installed on laser range finder, in the time that the transmitting of the position of reference point and monitoring point is tilted, can be adjusted voluntarily, remain horizontality, use convenient.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of contactless space displacement measurement mechanism of the present invention.
In figure: 1 is laser range finder, 2 is the saturating plate of imaging, and 3 is two-dimensional CCD imageing sensor, 4 is radio-frequency module, and 5 is driver module, and 6 is control module, 7 is stadimeter support, and 8 is erecting frame, and 9 is the first double-shaft tilt angle sensor, 10 is panel guide, and 11 is range adjuster bar, and 12 is narrow-band filter, 13 is wide-angle lens, and 14 is automatic flat-mounting device, and 15 is light concentrator, 16 is the second radio-frequency module, and 17 is the second radio-frequency module.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the contactless space displacement measurement mechanism of the present embodiment comprises the laser range finder 1 that is arranged on reference point place, also comprise be arranged on monitoring point place the saturating plate 2 of imaging, be arranged on image collecting device and driver module 5 and the control module 6 of the saturating plate 2 of imaging back to laser range finder 1 one sides, the saturating plate 2 of imaging is for the light that receives laser range finder and send and form hot spot, described image collecting device is for gathering the hot spot forming on the saturating plate 2 of imaging, described image collecting device is connected with driver module 5, and driver module 5 is connected with control module 6.
Described image collector is set to front and is provided with the two-dimensional CCD imageing sensor 3 of wide-angle lens 13.
Particularly, laser range finder 1 is arranged on stadimeter support 7, stadimeter support 7 is fixedly mounted on reference point place, described image collecting device is arranged on erecting frame 8, on erecting frame 8, be arranged on monitoring point place, the saturating plate 2 of imaging is movably arranged on the front of image collecting device by saturating panel guide 10, and panel guide 10 is arranged on erecting frame 8 thoroughly, on the saturating plate 2 of imaging, range adjuster bar 11 is installed, range adjuster bar 11 is threaded with erecting frame 8.
In the present invention, adopt laser range finder 1 is installed in measuring basis position, be mounted to the saturating plate 2 of picture and image collecting device in monitoring point, the imaging on the saturating plate 2 of imaging of laser range finder 1 Emission Lasers bundle forms hot spot, image collecting device changes by the facula position gathering on the saturating plate 2 of imaging, monitors the change in displacement of measured point.
In the time measuring first, laser range finder 1 is launched light beam imaging on the saturating plate 2 of imaging and is formed hot spot, now two-dimensional CCD imageing sensor 3 gathers the facula position of imaging first, and carry out analytic record by data processing and display module, when sedimentation occurs in measured point, when swelling or moving left and right, the position of the hot spot that laser beam forms on the saturating plate 2 of imaging changes, the facula position that two-dimensional CCD imageing sensor 3 gathers after changing, and then carry out analytic record by data processing and display module, data processing and display module are by the data analysis processing of twice record, can draw the deformation of measured point.
In addition in order to reduce the energy consumption of laser range finder 1, on laser range finder 1, be provided with the first radio-frequency module 4, image collector is set up and is provided with the second radio-frequency module 16, the second radio-frequency module 16 is connected with control module 6, in the time that needs are measured, control module 6 is launched start working signals by the second radio-frequency module 16 to the first radio-frequency module 4 on laser range finder 1, laser range finder 1 starts to find range after receiving signal, and data measured is stored, the data processing that image collector is set up and display module complete after the dissection process of hot spot, read the range data on laser range finder 1 by the second radio-frequency module 16 and the first radio-frequency module 4, after reading out data completes, transmit, controlling laser range finder 1 closes, can effectively reduce the energy consumption of laser range finder by above-mentioned functions, be convenient to field survey.
The saturating plate 2 of imaging is arranged on erecting frame 8 by saturating panel guide 10, and be controlled to the distance between the saturating plate 2 of picture and image collecting device by range adjuster bar 11, by expanding the acquisition range of image collecting device, expand the range of measurement, and on saturating panel guide 10 or be provided with scale on range adjuster bar 11, facilitate scene to regulate.
Automatic flat-mounting device 14 and the first double-shaft tilt angle sensor 9 are also installed on laser range finder 1, in the time of the run-off the straight of the position of the position of laser range finder 1 and monitoring point, automatic flat-mounting device 14 is adjusted laser range finder 1 automatically, make it remain horizontality, and the first double-shaft tilt angle sensor 9 can be measured the actual angle of inclination of laser range finder 1, according to trigonometric function, laser spots image space is proofreaied and correct.
For reducing the impact of surround lighting on laser beam, install narrow-band filter 12 additional at the front end of the saturating plate 2 of imaging, the light of filtering except laser light wave, reduces surround lighting to measuring the impact causing, and improves measuring accuracy; In order to facilitate field telemeasurement, light concentrator 15 is installed on laser range finder 1 simultaneously, by adjusting light concentrator 15, is made the hot spot of laser beam on the saturating plate of imaging reach minimum, more can effectively improve measuring accuracy.
For preventing occurring horizontal displacement monitoring or the excessive border that exceeds the saturating plate 2 of imaging of perpendicular displacement in observation process, erecting frame 8 is arranged on two-dimentional automatic displacement platform, two dimension automatic displacement platform can regulate the saturating plate 2 of imaging, record regulates the displacement of displacement relative displacement point simultaneously, and displacement adds up, the range of measuring can infinitely be expanded.
Further, the second double-shaft tilt angle sensor 17 is installed on erecting frame 8, recording the imageing sensor of monitoring point by the second double-shaft tilt angle sensor 17 faces upward and is out of shape along reverse rotation with respect to the front and back volt of laser instrument, the three dimensional local information recording in conjunction with laser range finder 1 and two-dimensional CCD imageing sensor 3 again, can realize " five dimensions " space displacement of monitoring point is measured.
Range of the present invention is large, accuracy of measurement is high, low in energy consumption, can measuring position sensor face upward and easy to adjust along reverse rotation distortion, range with respect to the front and back volt of laser instrument, solve the corresponding problem existing of prior art, be widely used in the distortion of monitoring works building under geologic hazard condition.
By reference to the accompanying drawings embodiments of the invention are explained in detail above; but the present invention is not limited to above-described embodiment; in the ken possessing those of ordinary skill in the art; can also under the prerequisite that does not depart from aim of the present invention, make obtaining various variations, also should be considered as protection scope of the present invention.
Claims (9)
1. a contactless space displacement measurement mechanism, comprise the laser range finder that is arranged on reference point place, it is characterized in that: also comprise be arranged on monitoring point place the saturating plate of imaging, be arranged on image collecting device and driver module and the control module of the saturating backboard of imaging to laser range finder one side, the saturating plate of described imaging is for receiving the light that laser range finder sends and forming hot spot, described image collecting device is for gathering the hot spot forming on the saturating plate of imaging, and described image collecting device is connected with driver module, driver module is connected with control module.
2. the contactless space displacement measurement mechanism of one according to claim 1, is characterized in that: described image collector is set to front and is provided with the two-dimensional CCD imageing sensor of wide-angle lens.
3. the contactless space displacement measurement mechanism of one according to claim 1, it is characterized in that: described laser range finder is arranged on stadimeter support, described stadimeter support is fixedly mounted on reference point place, described image collecting device is arranged on erecting frame, on described erecting frame, be arranged on monitoring point place, the saturating plate of described imaging is movably arranged on the front of image collecting device by saturating panel guide, described panel guide is arranged on erecting frame, on the saturating plate of described imaging, range adjuster bar is installed, described range adjuster bar is threaded with erecting frame, and one end is fixed on the saturating plate of imaging.
4. the contactless space displacement measurement mechanism of one according to claim 1, it is characterized in that: in described laser ranging, be provided with the first radio-frequency module, image collector is set up and is provided with the second radio-frequency module and data processing and display module, and the second radio-frequency module, data processing and display module are all connected with control module electric signal.
5. the contactless space displacement measurement mechanism of one according to claim 1, is characterized in that: on described laser range finder, light concentrator is installed, the front of the saturating plate of described imaging is provided with narrow-band filter.
6. the contactless space displacement measurement mechanism of one according to claim 1, is characterized in that: the first double-shaft tilt angle sensor and automatic flat-mounting device are also installed on described laser range finder.
7. the contactless space displacement measurement mechanism of one according to claim 4, is characterized in that: on described panel guide or on range adjuster bar, be provided with scale.
8. the contactless space displacement measurement mechanism of one according to claim 4, is characterized in that: described erecting frame is arranged on two-dimentional automatic displacement platform.
9. the contactless space displacement measurement mechanism of one according to claim 4, is characterized in that: the second double-shaft tilt angle sensor is installed on described erecting frame.
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| CN201410116266.2A CN103940357A (en) | 2014-03-26 | 2014-03-26 | Non-contact spatial displacement measurement device |
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| CN201410116266.2A CN103940357A (en) | 2014-03-26 | 2014-03-26 | Non-contact spatial displacement measurement device |
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| CN104777524A (en) * | 2015-03-27 | 2015-07-15 | 沈阳西东控制技术有限公司 | Portable laser positioning instrument |
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| CN105387811A (en) * | 2015-10-21 | 2016-03-09 | 陕西省地质环境监测总站 | Photoelectric type landslide mass dynamic online monitoring all-in-one machine and monitoring method thereof |
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| CN105571506A (en) * | 2015-12-25 | 2016-05-11 | 北京尚水信息技术股份有限公司 | Apparatus for measuring deflection of measuring bridge in topographic measurement and measuring method thereof |
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| CN106352799A (en) * | 2016-08-10 | 2017-01-25 | 国网浙江省电力公司金华供电公司 | Measuring instrument for power transmission line tower |
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| CN104777524A (en) * | 2015-03-27 | 2015-07-15 | 沈阳西东控制技术有限公司 | Portable laser positioning instrument |
| CN104897067A (en) * | 2015-06-19 | 2015-09-09 | 天津大学 | Laser image real time monitoring method measuring relative displacement |
| CN105387811A (en) * | 2015-10-21 | 2016-03-09 | 陕西省地质环境监测总站 | Photoelectric type landslide mass dynamic online monitoring all-in-one machine and monitoring method thereof |
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| CN105571504A (en) * | 2015-12-16 | 2016-05-11 | 天津市天门进保科技有限公司 | Bridge flexibility symmetrical photoelectric automatic measurement apparatus |
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| CN109072881A (en) * | 2016-04-01 | 2018-12-21 | 乌本产权有限公司 | For measuring the measuring system on the surface of the rotor blade of wind energy plant |
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| CN107525478A (en) * | 2017-09-27 | 2017-12-29 | 中南大学 | A kind of displacement deformation observation device and method based on CMOS photosensitive imaging sensors |
| CN107783147A (en) * | 2017-10-16 | 2018-03-09 | 北京天格高通科技有限公司 | A kind of catenary design and laser radar leveling method based on laser radar |
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| CN108120384A (en) * | 2018-01-12 | 2018-06-05 | 佛山科学技术学院 | A kind of mobile measuring equipment for being used to measure bottom elevation |
| CN108363066B (en) * | 2018-01-15 | 2021-06-11 | 成都大亦科技有限公司 | High-precision distance measuring method |
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