CN102927963A - Detecting method for preset position of monitoring device - Google Patents
Detecting method for preset position of monitoring device Download PDFInfo
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- CN102927963A CN102927963A CN2012104120624A CN201210412062A CN102927963A CN 102927963 A CN102927963 A CN 102927963A CN 2012104120624 A CN2012104120624 A CN 2012104120624A CN 201210412062 A CN201210412062 A CN 201210412062A CN 102927963 A CN102927963 A CN 102927963A
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- presetting bit
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- 238000000034 method Methods 0.000 title abstract description 7
- 238000012806 monitoring device Methods 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 claims description 41
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012353 t test Methods 0.000 description 1
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Abstract
The invention discloses a detecting method for a preset position of a monitoring device. The detecting method comprises the following steps: 1), arranging a vertical detecting screen in front of a cradle head, wherein the horizontal distance between the detecting screen and the cradle head is recorded as Y; 2), horizontally fixing a luminescent module at the top end of the cradle head, wherein the light emitted by the luminescent module can radiate to the detecting screen, and an included angle between the light and the detecting screen is Theta; 3), controlling the cradle head to move to a predetermined preset position; 4), controlling the cradle head to horizontally and freely rotate, returning the cradle head to the predetermined preset position, and measuring the distance Delta x between the returning position and the initial position; and 5), obliquely crossing the luminescent module with the detecting screen to form a preset position deviation angle, so that the displacement deviation value on the detecting screen between the initial position and the returning position can be increased, and the adaptability and accuracy for the detecting system is improved.
Description
Technical field
The present invention relates to technical field of video monitoring, particularly relate to a kind of detection method of presetting bit of supervising device.
Background technology
In field of video monitoring, The Cloud Terrace (or ball machine) not only plays the effect of supporting and video camera being installed, and the more important thing is the field range that has enlarged video camera, and video camera is rotated in the horizontal direction with on the vertical direction.At present, detect The Cloud Terrace (or ball machine, below describe as an example of The Cloud Terrace example) the method conventional method of presetting bit as: at first be arranged on a predetermined presetting bit and a vertical detection screen be set in its place ahead at The Cloud Terrace, at laser module of The Cloud Terrace top fixed placement, the emission of light of laser module and The Cloud Terrace top are at grade, vertically being radiated on the detection screen and setting this point at the laser beam that this presetting bit laser module sends is initial bit, record simultaneously the coordinate figure of initial bit, after The Cloud Terrace moves to other positions, recall again this presetting bit, because the precision problem of The Cloud Terrace, the presetting bit position that the presetting bit position versus The Cloud Terrace that The Cloud Terrace is recalled is set has the certain deviation angle, it is that a section moves that this deviation angle is reflected on the detection screen, move and be Δ x by measuring this section, The Cloud Terrace is known y apart from the distance that detects screen simultaneously, then (rotatablely moving on the surface level of The Cloud Terrace is circular motion to deviation angle θ=arctan (Δ x/y), so that angular deviation embodies in the space is one section minor arc Δ l, but Δ l in the actual test＜＜y, so for convenience of calculation, Δ x commonly used replaces Δ l).
But, although above-mentioned detection method by presetting bit is simple to operate and testing result is more accurate, presetting bit at 0.1 ° and following watch-dog detects but this detection method is just for the Product Precision scope, then can't test for higher precision, it is 0.03 ° equipment under test such as the presetting bit precision, and equipment under test is in 4 meters the situation apart from detecting screen distance, according to the relevant regulations in the national mensuration, the precision of surveying instrument should be 1/2 of equipment under test precision at least, generally choose 1/3 or 1/5, then above-mentioned detection method is detecting discernmible at least distance, delta x=tan (0.01) * 4000=0.69mm on the screen, 0.69mm displacement be difficult to have differentiated, if less displacement is arranged again, detection system is indistinguishable more just, can cause measuring error, or even measuring error.
Summary of the invention
The objective of the invention is for the technological deficiency that exists in the prior art, and a kind of detection method of presetting bit of supervising device is provided.
For realizing that the technical scheme that purpose of the present invention adopts is:
A kind of detection method of presetting bit of supervising device may further comprise the steps,
1) a vertical detection screen is set in The Cloud Terrace the place ahead, the horizontal range of itself and The Cloud Terrace is designated as Y,
2) fix an illuminating module in The Cloud Terrace top level, the light that described illuminating module is sent can expose on the detection screen and the angle of light and detection screen is θ;
3) the control The Cloud Terrace moves to a predetermined presetting bit, and the luminous point that illuminating module is exposed on the detection screen is designated as initial bit;
4) recall to this predetermined presetting bit after control The Cloud Terrace level rotates freely, the luminous point on the detection screen of this moment is designated as recalls the position, measures the distance, delta x that recalls between position and the initial bit;
5) presetting bit misalignment angle
Described θ is the acute angle greater than 45 degree.
Described θ is in 60-80 ° of scope.
Compared with prior art, the invention has the beneficial effects as follows:
The presetting bit detection method of supervising device provided by the invention has easy to operate, the characteristics such as wide adaptability and effect are remarkable, it adopts illuminating module and the mode that detects the screen oblique, main nonlinear characteristic principle according to the tangent in the trigonometric function (tan) function, namely (0, pi/2) in the interval, the curvature of function increases along with the increase of angle, therefore with laser module light beam and The Cloud Terrace top plane parallel, and guarantee that laser beam and the screen that detects screen have 60 °～80 ° angle, so just can increase initial bit and recall and be embodied in the displacement residual quantity that detects on the screen between the position, reach in the scope of detection system resolution distance, finish the detection of High Precision Monitor device to the presetting bit deviation angle, improve adaptability and the accuracy of its detection system.
Embodiment
Below in conjunction with specific embodiment the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
At first define The Cloud Terrace and be rotated counterclockwise skew that direction produces for just, the dextrorotation veer is for negative, work as accordingly The Cloud Terrace and be rotated counterclockwise the moving direction of time point on the detection screen orientation for just, when The Cloud Terrace turns clockwise the moving direction of time point on the detection screen orientation for negative.
Specific embodiment 1
The accuracy checking method of the supervising device of first embodiment of the invention may further comprise the steps, and a vertical detection screen at first is set in The Cloud Terrace the place ahead, and the horizontal range Y of itself and The Cloud Terrace is 4m,
Then fix a lasing fluorescence module in The Cloud Terrace top level, select a presetting bit of The Cloud Terrace to be designated as predetermined presetting bit, can expose at the light that the described illuminating module of this predetermined presetting bit is sent and to detect on the screen and light is 70 ° with the angle theta that detects screen, what namely described illuminating module was sent only is slanted on the detection screen;
After above-mentioned steps is finished, illuminating module is exposed to the luminous point that detects on the screen be designated as initial bit A, generally this luminous point is chosen in and detects near the screen center place;
Then control and recall after the The Cloud Terrace level rotates freely 90 ° to predetermined presetting bit, because the precision reason of The Cloud Terrace, although but it will get back to programmed control this predetermined presetting bit its and can accurately not get back to this predetermined presetting bit, meeting is deviation to some extent, deviation is reacted to detect on the screen and a new luminous point that departs from mutually with initial bit namely occurs, the new light spot position on the screen of will detecting of this moment is designated as and recalls a B, measure recall and initial bit between distance, delta x be 5.97mm;
Can calculate the presetting bit misalignment angle by the above results
Embodiment 2
The accuracy checking method of the supervising device of second embodiment of the invention may further comprise the steps, and a vertical detection screen at first is set in The Cloud Terrace the place ahead, and the horizontal range Y of itself and The Cloud Terrace is 4m,
Then fix a lasing fluorescence module in The Cloud Terrace top level, select a predetermined presetting bit of The Cloud Terrace, can expose at the light that the described illuminating module of this presetting bit is sent and to detect on the screen and light is 80 ° with the angle theta that detects screen, what namely described illuminating module was sent only is slanted on the detection screen;
After above-mentioned steps is finished, illuminating module is exposed to the luminous point that detects on the screen be designated as initial bit A, generally this luminous point is chosen in and detects near the screen center place;
Then controlling the The Cloud Terrace level rotates freely 80 ° and recalls to this predetermined presetting bit, because the precision reason of The Cloud Terrace, although but it will get back to programmed control this predetermined presetting bit its and can accurately not get back to this predetermined presetting bit, meeting is deviation to some extent, deviation is reacted to detect on the screen and a new luminous point that departs from mutually with initial bit namely occurs, the new light spot position on the screen of will detecting of this moment is designated as and recalls a B, measure recall and initial bit between distance, delta x be 8.97mm;
Can calculate the presetting bit misalignment angle by the above results
Embodiment 3
The accuracy checking method of the supervising device of third embodiment of the invention may further comprise the steps, and a vertical detection screen at first is set in The Cloud Terrace the place ahead, and the horizontal range Y of itself and The Cloud Terrace is 4m,
Then fix a lasing fluorescence module in The Cloud Terrace top level, select a predetermined presetting bit of The Cloud Terrace, can expose at the light that the described illuminating module of this presetting bit is sent and to detect on the screen and light is 60 ° with the angle theta that detects screen, what namely described illuminating module was sent only is slanted on the detection screen;
After above-mentioned steps is finished, illuminating module is exposed to the luminous point that detects on the screen be designated as initial bit A, generally this luminous point is chosen in and detects near the screen center place;
Then control and recall to this predetermined presetting bit after the The Cloud Terrace level rotates freely-70 °, because the precision reason of The Cloud Terrace, although but it will get back to programmed control this predetermined presetting bit its and can accurately not get back to this predetermined presetting bit, meeting is deviation to some extent, deviation is reacted to detect on the screen and a new luminous point that departs from mutually with initial bit namely occurs, the new light spot position on the screen of will detecting of this moment is designated as and recalls a B, measures the distance, delta x that recalls between position and the initial bit and is-3.97mm;
Can calculate the presetting bit misalignment angle by the above results
The presetting bit detection method of supervising device provided by the invention has easy to operate, the characteristics such as wide adaptability and effect are remarkable, it adopts illuminating module and the mode that detects the screen oblique, main nonlinear characteristic principle according to the tangent in the trigonometric function (tan) function, namely (0, pi/2) in the interval, the curvature of function increases along with the increase of angle, therefore with laser module light beam and The Cloud Terrace top plane parallel, and guarantee that laser beam and the screen that detects screen have 60 °～80 ° angle, so just can increase initial bit and recall and be embodied in the displacement residual quantity that detects on the screen between the position, reach in the scope of detection system resolution distance, finish the detection to High Precision Monitor device presetting bit deviation angle, improve adaptability and the accuracy of its detection system.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. the detection method of the presetting bit of a supervising device is characterized in that, may further comprise the steps,
1) a vertical detection screen is set in The Cloud Terrace the place ahead, the horizontal range of itself and The Cloud Terrace is designated as Y;
2) fix an illuminating module in The Cloud Terrace top level, the light that described illuminating module is sent can expose on the detection screen and the angle of light and detection screen is θ;
3) the control The Cloud Terrace moves to a predetermined presetting bit, and the luminous point that illuminating module is exposed on the detection screen is designated as initial bit;
4) recall to this predetermined presetting bit after control The Cloud Terrace level rotates freely, the luminous point on the detection screen of this moment is designated as recalls the position, measures the air line distance Δ x that recalls between position and the initial bit;
5) then presetting bit misalignment angle
2. the detection method of the presetting bit of described supervising device as claimed in claim 1 is characterized in that, described θ is the acute angle greater than 45 degree.
3. the detection method of the presetting bit of described supervising device as claimed in claim 2 is characterized in that, described θ is at 60-80 °.
4. such as the detection method of the presetting bit of each described supervising device of claim 1-3, it is characterized in that described illuminating module is the laser module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210412062.4A CN102927963B (en) | 2012-10-24 | 2012-10-24 | Detecting method for preset position of monitoring device |
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| CN201210412062.4A CN102927963B (en) | 2012-10-24 | 2012-10-24 | Detecting method for preset position of monitoring device |
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| CN102927963A true CN102927963A (en) | 2013-02-13 |
| CN102927963B CN102927963B (en) | 2015-06-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134005A (en) * | 2014-07-31 | 2014-11-05 | 天津市亚安科技股份有限公司 | Presetting bit deviation computing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH112518A (en) * | 1997-06-13 | 1999-01-06 | Shimizu Corp | Automatic surveying method and device |
| JP2000292162A (en) * | 1999-04-09 | 2000-10-20 | Hitachi Constr Mach Co Ltd | Azimuth angle survey device |
| CN102506811A (en) * | 2011-11-11 | 2012-06-20 | 赵跃 | Image detection-based on-line detection and correction method of reflection angle of heliostat |
-
2012
- 2012-10-24 CN CN201210412062.4A patent/CN102927963B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH112518A (en) * | 1997-06-13 | 1999-01-06 | Shimizu Corp | Automatic surveying method and device |
| JP2000292162A (en) * | 1999-04-09 | 2000-10-20 | Hitachi Constr Mach Co Ltd | Azimuth angle survey device |
| CN102506811A (en) * | 2011-11-11 | 2012-06-20 | 赵跃 | Image detection-based on-line detection and correction method of reflection angle of heliostat |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134005A (en) * | 2014-07-31 | 2014-11-05 | 天津市亚安科技股份有限公司 | Presetting bit deviation computing method |
| CN104134005B (en) * | 2014-07-31 | 2017-05-17 | 天津市亚安科技有限公司 | Presetting bit deviation determining method |
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Address after: 300384 in Tianjin Binhai Huayuan Industrial Zone (outer ring) eight Haitai Huake Road No. 6 Patentee after: TIANJIN YAAN TECHNOLOGY Co.,Ltd. Address before: Zi Yuan Road 300384 Tianjin city Nankai District Huayuan Industrial Park No. 8 Patentee before: TIANJIN YAAN TECHNOLOGY Co.,Ltd. |
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