CN102735262B - Laser line generator's precision detection device - Google Patents
Laser line generator's precision detection device Download PDFInfo
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- CN102735262B CN102735262B CN201210209017.9A CN201210209017A CN102735262B CN 102735262 B CN102735262 B CN 102735262B CN 201210209017 A CN201210209017 A CN 201210209017A CN 102735262 B CN102735262 B CN 102735262B
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- 238000005516 engineering process Methods 0.000 description 3
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Abstract
The invention discloses a laser line generator's precision detection device, which comprises an emitter, a vertical receiving device, a horizontal receiving device and an image display device. The emitter is used for emitting lights. The vertical receiving device is respectively connected with the emitter and the image display device and is used to receive an optical signal emitted from the emitter, convert the optical signal into an electrical signal and send the electrical signal to the image display device. The horizontal receiving device is respectively connected with the emitter and the image display device and is used to receive an optical signal emitted from the emitter, convert the optical signal into an electrical signal and send the electrical signal to the image display device. The image display device is used to display a received light graph according to the electrical signals sent from the vertical receiving device and the horizontal receiving device. The device has a simple structure, is used in an environment similar to an actual usage environment, can be used to control precision of a laser line generator, and has high detection precision.
Description
Technical field
The present invention relates to surveying instrument technical field, particularly relate to a kind of Laser Line Marker accuracy detecting device.
Background technology
At present a large amount of 2 lines, 3 lines, 5 lines, 8 line frame for line marking instruments used, are mainly used in electronic circuit and pipeline laying, tiling, ceramic tile, panelling, paving wallpaper, and kitchen and Toilet Installation etc. are levelling, planning and measuring.Require that the trueness error of instrument within the scope of 5 meters is less than 1 millimeter.Often there is deviation in the accuracy of detection of its factory testing precision and practical service environment, so provide a kind of pick-up unit close with practical service environment very necessary.
Summary of the invention
(1) technical matters that will solve
The problem to be solved in the present invention is to provide a kind of Laser Line Marker accuracy detecting device, to overcome the low defect of accuracy of detection in prior art.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of Laser Line Marker accuracy detecting device, described device comprises: emitter, vertical reception device, horizontal receiving trap and image display device, and described emitter is used for emitting beam; Described vertical reception device is connected with described emitter and image display device respectively, for receiving the light signal that described emitter sends, and described light signal is converted to electric signal, and described electric signal is sent to described image display device; Described horizontal receiving trap is connected with described emitter and image display device respectively, for receiving the light signal that described emitter sends, and described light signal is converted to electric signal, and described electric signal is sent to described image display device; Described device used for image display, in the electric signal sent according to described vertical reception device and horizontal receiving trap, shows the light figure received.
Further, described emitter comprises worktable, respectively a zenith CCD camera and lower some CCD camera are installed up and down at described worktable, target is provided with before described zenith CCD camera and lower some CCD camera, described worktable is provided with a frame for line marking instrument, described zenith CCD camera is connected with described frame for line marking instrument with lower some CCD camera, and described zenith CCD camera is connected with described image display device with lower some CCD camera.
Further, described vertical reception device comprises center stand column receiving trap, left column receiving trap and right column receiving trap, a semicircle is formed with center stand column receiving trap, left column receiving trap and right column receiving trap centered by described worktable, center stand column receiving trap is set in the dead ahead of described worktable, is respectively arranged with left column receiving trap and right column receiving trap in the left and right sides of described worktable.
Further, described center stand column receiving trap, left column receiving trap and right column receiving trap all include a root post, at described column, 2 CCD cameras are at least installed from top to bottom, target is provided with before a described CCD camera, described column is provided with a pedal line, described pedal line hang over described target just before, a described CCD camera is connected with described frame for line marking instrument, and a described CCD camera is connected with described image display device.
Further, described horizontal receiving trap is arranged on the front of emitter, horizontal receiving trap comprises at least 3 the 2nd CCD cameras, target is provided with before described 2nd CCD camera, described worktable and described 2nd CCD camera contour, described 2nd CCD camera is connected with described frame for line marking instrument, and described 2nd CCD camera is connected with described image display device.
(3) beneficial effect
A kind of Laser Line Marker accuracy detecting device of the present invention, the light of Laser Line Marker irradiates the scale mark on pedal line and target, both are surface imaging on CCD camera simultaneously, the datum line provided by pedal line regulates the target placement above the position of CCD camera, image is passed to image display group by CCD camera afterwards, obtain the visible dots that three become pedal line arrangement, and then carry out error in judgement by the position of viewing ray on target, close with practical service environment, and more effective control Laser Line Marker precision, accuracy of detection is high.
Accompanying drawing explanation
Fig. 1 is the structural scheme of mechanism of a kind of Laser Line Marker accuracy detecting device of the present invention;
Fig. 2 is the position view of the embodiment of the present invention one;
Fig. 3 is the structural representation of the embodiment of the present invention one central post;
Fig. 4 is the structural representation of emitter in the embodiment of the present invention one.
In figure, 1 is worktable, and 2 is zenith CCD camera, and 3 is lower some CCD camera, column receiving trap centered by 4,5 is left column receiving trap, and 6 is right column receiving trap, and 7 is a CCD camera, 8 is emitter, 9 is image display device, and 10 is pedal line, and 11 is the 2nd CCD camera.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figures 1 to 4, a kind of Laser Line Marker accuracy detecting device of the present invention, comprising: emitter 8, vertical reception device, horizontal receiving trap and image display device 9, and described emitter 8 is for emitting beam; Described vertical reception device is connected with described emitter 8 and image display device 9 respectively, for receiving the light signal that described emitter 8 sends, and described light signal is converted to electric signal, and described electric signal is sent to described image display device 9, described vertical reception device and described emitter 8 can adopt multiple connected mode, and the present embodiment adopts channel to connect; Described horizontal receiving trap is connected with described emitter 8 and image display device 9 respectively, for receiving the light signal that described emitter 8 sends, and described light signal is converted to electric signal, and described electric signal is sent to described image display device 9, described horizontal receiving trap and described emitter 8 can adopt multiple connected mode, and the present embodiment adopts channel to connect; Described image display device 9, for the electric signal sent according to described vertical reception device and horizontal receiving trap, shows the light figure received.
Described emitter 8 comprises worktable 1, respectively a zenith CCD camera 2 and lower some CCD camera 3 are installed up and down at described worktable 1, target is provided with above at described zenith CCD camera 2 and lower some CCD camera 3, described worktable 1 is provided with a frame for line marking instrument, described zenith CCD camera 2 is connected with described frame for line marking instrument with lower some CCD camera 3, described zenith CCD camera 2 and lower some CCD camera 3 can adopt multiple connected mode with described frame for line marking instrument, and the present embodiment adopts channel to connect.Described zenith CCD camera 2 is connected with described image display device 9 with lower some CCD camera 3.
Described vertical reception device comprises center stand column receiving trap 4, left column receiving trap 5 and right column receiving trap 6, a semicircle is formed with center stand column receiving trap 4, left column receiving trap 5 and right column receiving trap 6 centered by described worktable 1, center stand column receiving trap 4 is set in the dead ahead of described worktable 1, is respectively arranged with left column receiving trap 5 and right column receiving trap 6 in the left and right sides of described worktable 1.
Described center stand column receiving trap 4, left column receiving trap 5 and right column receiving trap 6 all include a root post, at described column, 2 CCD cameras 7 are at least installed from top to bottom, target is provided with above at a described CCD camera 7, described column is provided with a pedal line 10, described pedal line 10 hang over described target just before, a described CCD camera 7 is connected with described frame for line marking instrument, a described CCD camera 7 is connected with described frame for line marking instrument can adopt multiple connected mode, and the present embodiment adopts channel to connect.A described CCD camera 7 is connected with described image display device 9.Center stand column hangs a pedal line 10.Left column and right column hang a long pedal line 10, two ends system weight respectively.
Described horizontal receiving trap is arranged on the front of emitter 8, described horizontal receiving trap comprises at least 3 the 2nd CCD cameras 11, target is provided with above at described 2nd CCD camera 11, described worktable 1 is contour with described 2nd CCD camera 11, described 2nd CCD camera 11 is connected with described frame for line marking instrument, described 2nd CCD camera 11 can adopt multiple connected mode with described frame for line marking instrument, and the present embodiment adopts channel to connect.Described 2nd CCD camera 11 is connected with described image display device 9.
Image display device 9 can be put arbitrarily.Horizontal receiving trap and vertical reception device can be put according to actual needs.
Center stand column receiving trap 4, left column receiving trap 5 and right column receiving trap 6 are used for measuring the verticality of Laser Line Marker.Horizontal receiving trap is used for measuring the surface level of Laser Line Marker.Pedal line 10 on zenith CCD camera 2 and left and right column is used for measuring the face of 180 ° of Laser Line Marker.Zenith CCD camera 2 and lower some CCD camera 3 are used for measuring the rotary shaft position of Laser Line Marker.
The principle of this device is: the light of Laser Line Marker irradiates the scale mark on pedal line 10 and target, both are surface imaging on CCD camera simultaneously, the datum line provided by pedal line 10 regulates the target placement above the position of CCD camera, image is passed to image display group by CCD camera afterwards, obtain three visible dots becoming pedal line 10 to arrange, and then carry out error in judgement by the position of viewing ray on target.
Described three root posts are at least provided with 2 CCD cameras 7 from top to bottom, the number that the present embodiment places a CCD camera 7 at three root posts is 3, placement 3 CCD cameras 7 that upper, middle and lower are average, centered by worktable 1, three root post distance worktable 1 are five meters.Described horizontal receiving trap comprises at least 3 the 2nd CCD cameras 11, the number that 2nd CCD camera 11 of the horizontal receiving trap of the present embodiment is selected is 4, these 4 the 2nd CCD cameras 11 are placed in the scope at 110 ° of angles, worktable 1 front, wherein 3 the 2nd CCD cameras 11 with above-mentioned worktable 1 contour and distance worktable 1 five meters, other 1 the 2nd CCD camera 11 is near above-mentioned worktable 1 and with 3 the 2nd CCD cameras 11 are contour above.
During installation, in the angular region of 110 °, worktable 1 front, 3 contour the 2nd CCD cameras 11 put by distance worktable 1 five meters, place in the place that worktable 1 is nearer one with 3 same the 2nd CCD cameras 11 highly above, be used for mensuration surface level.
As shown in Figure 3, worktable about 1 respectively installs a zenith CCD camera 2 and lower some CCD camera 3, target benchmark above zenith CCD camera 2 will align with long pedal line 10 interlude, Laser Line Marker is put on worktable 1, turn levelling foot makes Laser Line Marker be up to the standard state, switched laser frame for line marking instrument mode of operation is to 4V state, adjustment worktable 1, the overcrossing point of Laser Line Marker is made to aim at zenith CCD camera 2 Target Center, judge that whether the position of line is accurate by pedal line 10 shade, as inaccurate, move the pedal line 10 of left column or right column until alignment, a CCD camera 7 on corresponding mobile left column or right column, the face of such 180 ° has regulated.
V1, V2, V3, V4 respectively corresponding Laser Line Marker are transmitted into center stand column, left column, zenith CCD camera and the vertical light on right column.Pedal line 10V1 is made to aim at upper CCD camera 7 target of left column, observation V4 is at the reading a of the upper target of center stand column, rotating Laser Line Marker makes vertical line V4 aim at the upper target of right column, observe V1 at the reading b of the upper target of center stand column, the amount of movement of the pedal line 10V1 centered by (b-a)/2 on column.Pedal line 10 position in adjustment center stand column and a corresponding CCD camera 7.
Rotating Laser Line Marker makes V1, V2, V3, V4 aim at the Target Center of left column successively, mark lower dot center position D1, D2, D3, D4 respectively, do the connecting line between D1, D3, do the connecting line between D2, D4 again, the intersection point of mark two connecting lines, the Target Center of lower some CCD camera 3 is moved on to position of intersecting point, and the lower point of pick-up unit just adjusts and completes.
Through the installation of above-mentioned four steps complete device.For deviation appears in anti-locking apparatus, every day should regularly proofread 2-3 time.
Embodiment two
Embodiment one is substantially identical with embodiment two, and difference is: it is 2 that the present embodiment places the number that a CCD camera 7 selects on three root posts, respectively installs one up and down.The number that 2nd CCD camera 11 of the horizontal receiving trap of the present embodiment is selected is 3.
A kind of Laser Line Marker accuracy detecting device of the present invention, the light of Laser Line Marker irradiates the scale mark on pedal line and target, both are surface imaging on CCD camera simultaneously, the datum line provided by pedal line regulates the target placement above the position of CCD camera, image is passed to image display group by CCD camera afterwards, obtain the visible dots that three become pedal line arrangement, and then carry out error in judgement by the position of viewing ray on target, close with practical service environment, and more effective control Laser Line Marker precision.
Below be only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a Laser Line Marker accuracy detecting device, is characterized in that, described device comprises: emitter (8), vertical reception device, horizontal receiving trap and image display device (9),
Described emitter (8) is for emitting beam;
Described vertical reception device is connected with described emitter (8) and image display device (9) respectively, for receiving the light signal that described emitter (8) sends, and described light signal is converted to electric signal, and described electric signal is sent to described image display device (9);
Described horizontal receiving trap is connected with described emitter (8) and image display device (9) respectively, for receiving the light signal that described emitter (8) sends, and described light signal is converted to electric signal, and described electric signal is sent to described image display device (9);
Described image display device (9), for the electric signal sent according to described vertical reception device and horizontal receiving trap, shows the light figure received.
2. Laser Line Marker accuracy detecting device as claimed in claim 1, it is characterized in that: described emitter (8) comprises worktable (1), respectively a zenith CCD camera (2) and lower some CCD camera (3) are installed up and down at described worktable (1), target is provided with above described zenith CCD camera (2) and lower some CCD camera (3), described worktable (1) is provided with a frame for line marking instrument, described zenith CCD camera (2) is connected with described frame for line marking instrument with lower some CCD camera (3), described zenith CCD camera (2) is connected with described image display device (9) with lower some CCD camera (3).
3. Laser Line Marker accuracy detecting device as claimed in claim 2, it is characterized in that: described vertical reception device comprises center stand column receiving trap (4), left column receiving trap (5) and right column receiving trap (6), with center stand column receiving trap (4) centered by described worktable (1), left column receiving trap (5) and right column receiving trap (6) form a semicircle, in the dead ahead of described worktable (1), center stand column receiving trap (4) is set, left column receiving trap (5) and right column receiving trap (6) is respectively arranged with in the left and right sides of described worktable (1).
4. Laser Line Marker accuracy detecting device as claimed in claim 3, it is characterized in that: described center stand column receiving trap (4), left column receiving trap (5) and right column receiving trap (6) all include a root post, at described column, 2 CCD cameras (7) are at least installed from top to bottom, target is provided with above at a described CCD camera (7), described column is provided with a pedal line (10), described pedal line (10 hang over described target just before, a described CCD camera (7) is connected with described frame for line marking instrument, a described CCD camera (7) is connected with described image display device (9).
5. the Laser Line Marker accuracy detecting device as described in any one of claim 2 to 4, it is characterized in that: described horizontal receiving trap is arranged on the front of emitter (8), horizontal receiving trap comprises at least 3 the 2nd CCD cameras (11), target is provided with above at described 2nd CCD camera (11), described worktable (1) is contour with described 2nd CCD camera (11), described 2nd CCD camera (11) is connected with described frame for line marking instrument, and described 2nd CCD camera (11) is connected with described image display device (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210209017.9A CN102735262B (en) | 2012-06-21 | 2012-06-21 | Laser line generator's precision detection device |
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| CN201210209017.9A CN102735262B (en) | 2012-06-21 | 2012-06-21 | Laser line generator's precision detection device |
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| CN102735262A CN102735262A (en) | 2012-10-17 |
| CN102735262B true CN102735262B (en) | 2014-12-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084748A (en) * | 2017-05-24 | 2017-08-22 | 东南大学 | The laser level automatic checkout system of view-based access control model |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767926B (en) * | 2016-12-30 | 2023-10-24 | 北京拉特激光精密仪器有限公司 | Calibration method of digital calibration system of demarcation device |
| CN108362306A (en) * | 2018-01-04 | 2018-08-03 | 常州维尔曼光电仪器有限公司 | A kind of frame for line marking instrument detection workbench |
| CN110242019B (en) * | 2018-04-26 | 2020-08-25 | 金华有成建设有限公司 | Wall leveling device capable of being installed quickly for building construction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166871A (en) * | 1995-10-30 | 1997-12-03 | 株式会社拓普康 | Rotary laser system |
| CN101709962A (en) * | 2005-09-12 | 2010-05-19 | 特里伯耶拿有限公司 | Surveying instrument and method of providing survey data using a surveying instrument |
| CN101726289A (en) * | 2009-12-23 | 2010-06-09 | 王鹏飞 | Leveling instrument for rapidly and automatically leveling |
| CN101726288A (en) * | 2009-12-23 | 2010-06-09 | 王鹏飞 | Quick and accurate self-leveling level |
| JP2011203196A (en) * | 2010-03-26 | 2011-10-13 | Visuatool Inc | Ground laser scanner surveying device, surveying device and surveying method |
| CN202661081U (en) * | 2012-06-21 | 2013-01-09 | 宁波舜宇测绘科技有限公司 | Accuracy detection device of laser marking device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100845022B1 (en) * | 2007-10-26 | 2008-07-08 | 주식회사 케이엠티엘 | Crack measure system and method for safety check-up of construction |
-
2012
- 2012-06-21 CN CN201210209017.9A patent/CN102735262B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1166871A (en) * | 1995-10-30 | 1997-12-03 | 株式会社拓普康 | Rotary laser system |
| CN101709962A (en) * | 2005-09-12 | 2010-05-19 | 特里伯耶拿有限公司 | Surveying instrument and method of providing survey data using a surveying instrument |
| CN101726289A (en) * | 2009-12-23 | 2010-06-09 | 王鹏飞 | Leveling instrument for rapidly and automatically leveling |
| CN101726288A (en) * | 2009-12-23 | 2010-06-09 | 王鹏飞 | Quick and accurate self-leveling level |
| JP2011203196A (en) * | 2010-03-26 | 2011-10-13 | Visuatool Inc | Ground laser scanner surveying device, surveying device and surveying method |
| CN202661081U (en) * | 2012-06-21 | 2013-01-09 | 宁波舜宇测绘科技有限公司 | Accuracy detection device of laser marking device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084748A (en) * | 2017-05-24 | 2017-08-22 | 东南大学 | The laser level automatic checkout system of view-based access control model |
| CN107084748B (en) * | 2017-05-24 | 2019-09-10 | 东南大学 | The laser level automatic checkout system of view-based access control model |
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| CN102735262A (en) | 2012-10-17 |
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Address after: No. 27-29 Shunke Road, Yuyao City, Ningbo City, Zhejiang Province, 315400 Patentee after: Ningbo SHUNBANG surveying and Mapping Technology Co.,Ltd. Address before: No. 27-29 Shunke Road, Yuyao City, Ningbo City, Zhejiang Province, 315400 Patentee before: NINGBO SUNNY SURVEYING & MAPPING TECHNOLOGY Co.,Ltd. |
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Address after: No. 116-118, Xinjian North Road, Yuyao City, Ningbo City, Zhejiang Province, 315400 Patentee after: Ningbo SHUNBANG surveying and Mapping Technology Co.,Ltd. Address before: No. 27-29 Shunke Road, Yuyao City, Ningbo City, Zhejiang Province, 315400 Patentee before: Ningbo SHUNBANG surveying and Mapping Technology Co.,Ltd. |