CN101782403B - Digital detection device of laser cast instrument based on linear array charge coupled device (CCD) - Google Patents
Digital detection device of laser cast instrument based on linear array charge coupled device (CCD) Download PDFInfo
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- CN101782403B CN101782403B CN2010101240521A CN201010124052A CN101782403B CN 101782403 B CN101782403 B CN 101782403B CN 2010101240521 A CN2010101240521 A CN 2010101240521A CN 201010124052 A CN201010124052 A CN 201010124052A CN 101782403 B CN101782403 B CN 101782403B
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Abstract
The invention discloses a digital detection device of a laser cast instrument based on a multi-linear-array charge coupled device (CCD) and relates to a detection device of the laser cast instrument. The invention comprises a laser cast instrument to be detected, which is provided with a cubic wall surface, a linear array CCD detector, an area array CCD detector, a serial port HUB and an upper computer; an eight-path high-precision linear array CCD and a one-path area array CCD are matched with each other to acquire various detection indexes of the laser cast instrument, print, number and count the detection results, so that the workload of timing, calibrating and detecting the laser cast instrument is reduced greatly; meanwhile, the invention avoids the hurt of the human eyes caused by the visual test and prevents the subjectivity of the visual detection of different inspection personnel, so the detection method is safe and reliable, and the result is more objective and scientific. The invention is used for detection and calibration in manufacturers and maintenance departments of the laser cast instrument, and provides the detection standard of the laser cast instrument for the related industries of supervision department of quality technology, metrological verification department, mapping department, national defense and military.
Description
Technical field
The present invention relates to a kind of laser level pick-up unit, relate in particular to a kind of laser level digitizing pick-up unit based on line array CCD.
Background technology
Laser level is a kind of novel optical, mechanical and electronic integration instrument, and it adopts the 635nm laser diode mostly, can project visible red horizontal linear and vertical straight line on metope.Utilize the automatic compensator or the manual horizontalization of plate level of instrument internal, the level or the plumb position that can keep the laser projections line.
Laser level generally only provides a horizontal line, is called 1H, and the instrument of 2H and 4H is also arranged.By the branch how many 1V, 2V, 3V, 4V are arranged of perpendicular line, instruments such as 1V, the 1V1H that Here it is occurs in the market, 2V1H, 3V1H, 4V1H, 3V2H, 4V2H.External also have 4V4H, and the instrument of making a call to a sealing surface level and sealing vertical plane.Instrument simple in structure is generally made the gravity pendulum structure, and complicated instrument is then made electric Anping formula structure.
The perpendicular line of laser level is mutually 90 °, and perpendicular line intersects at zenith, produces a zenith point.Horizontal line and perpendicular line are mutually 90 °, form one and hand over the plane, according to the horizontal friendship plane that how much can form correspondence that provides.Instrument also provide one little of point.Generally commonly used is 4H1V type and 4H2V type laser level.
The index that laser level mainly needs to calibrate comprises the linearity of quadrature precision, the laser rays of or the horizontal quadrature precision of the horizontal horizontal accuracy of 1-2 bar, 1-4 bar perpendicular line and 1-2 bar, 1-4 bar perpendicular line, down to the automatic compensation precision of a precision and instrument etc.
Laser level is mainly used in interior decoration, furred ceiling, door and window installation, partition, pipe installation, tunnel piercing, hangs in vertical line and the building operation such as quality inspection and project supervision.At present domestic relevant calibrating standard or the useful test rules that also do not have basically at laser level are so mainly undertaken by the index of dispatching from the factory its calibration work.Along with the use of laser level more and more widely, its assay calibration is required also will be more and more urgent.
Summary of the invention
Purpose of the present invention just is to overcome the shortcoming and defect that prior art exists, a kind of laser level digitizing pick-up unit based on line array CCD is provided, adapt to the detection of various model laser levels, satisfy the calibration of in the processing process, dispatching from the factory of laser level manufacturing enterprise, enhance productivity.
The object of the present invention is achieved like this:
The laying of the level by 8 line array CCD detecting devices, near point, vertical, quadrature, right point etc., and cooperate 1 road area array CCD, the multinomial technical indicator of laser level is carried out digitizing detection and judgement, and testing result filed and print, the workload that makes adjustment demarcate the detection laser level reduces greatly, also avoided simultaneously the injury that visual detection causes human eye and the subjectivity of different testing staff range estimation, made detection method safe and reliable, the result is objective science more.
Specifically, this device comprises laser level to be checked, is provided with a cube metope, CCD detecting device, serial ports and host computer;
Cube metope is grown up in 5 meters, is wider than 5 meters, and is tall and big in 3 meters; Cube metope comprises the 1st, 2 vertical walls, end face and bottom surface;
The CCD detecting device comprises 8 CCD linear array detecting devices and 1 CCD face battle array detecting device;
On the bottom surface, place laser level to be checked;
On the 1st vertical wall, be arranged at level 5 meters 2 points apart about horizontal line left side point line array CCD detecting device and the right point of horizontal line line array CCD detecting device, horizontal line near point line array CCD detecting device is provided with distance the 1st vertical wall in 1 meter place with a fixed support;
On the 1st vertical wall, some line array CCD detecting device and following some line array CCD detecting device upper and lower settings of perpendicular line are in vertical 3 meters 2 points apart on the perpendicular line;
The 2nd vertical wall is provided with the right point of perpendicular line line array CCD detecting device;
End face is provided with the 1st mutually orthogonal zenith quadrature line array CCD detecting device and the 2nd zenith quadrature line array CCD detecting device;
Under the cultellation over the ground of laser level 00, be provided with under one a right alignment area array CCD detecting device;
To the right alignment area array CCD detecting device, other 8 detecting devices are connected with 8 road serial ports respectively except that down;
Serial ports is connected with host computer.
The present invention has the following advantages and good effect:
1. the present invention is skillfully constructed, and is rational in infrastructure, easy for installation, easy and simple to handle, can realize detection and calibrating to the most of technical indicator of laser level.
2. the present invention adopts 8 road line array CCDs as the positional information of laser beam and the detecting sensor of width information, can reduce human eye injury and visual error, structures the formation by rational line array CCD, can satisfy every detection index of laser level fully.Since utilize line array CCD to carry out the detection of displacement and light width, the precision height, price is low, good stability, and anti-interference strong, laser alignment is convenient, and need not demarcate, and has improved the production efficiency of laser level greatly, has guaranteed product quality.
3. the present invention not only can be used as detection and calibration usefulness such as laser level manufacturer, maintenance department, also can be used as relevant industries such as quality supervision department, measurement verification department, Mapping departments and defence and military the laser level standard verification is provided.
Description of drawings
Fig. 1 is the structural representation of this device;
Fig. 2 is the process decision chart of laser level line precision index;
Fig. 3 is the process decision chart of laser vertical line precision index;
Fig. 4 is the process decision chart of laser rays zenith quadrature precision index;
Fig. 5 is the process decision chart of 90 ° of corner accuracy indexs of laser.
Wherein:
00-laser level to be checked;
10-cube of metope,
11-the 1st vertical wall, 12-the 2nd vertical wall, 15-end face, 16-bottom surface;
The 20-CCD detecting device,
21-horizontal line left side point line array CCD detecting device,
22-horizontal line near point line array CCD detecting device,
The right point of 23-horizontal line line array CCD detecting device,
Following some line array CCD detecting device of 24-perpendicular line,
Point line array CCD detecting device on the 25-perpendicular line,
26-the 1st zenith quadrature line array CCD detecting device,
27-the 2nd zenith quadrature line array CCD detecting device,
The right point of 28-perpendicular line line array CCD detecting device,
Under the 29-to a right alignment area array CCD detecting device;
30-8 road serial ports;
The 40-host computer;
The last horizontal light of A-, horizontal light under the B-, the vertical light in a C-left side, the right vertical light of D-.
English to Chinese
The CCD-charge coupled cell.
Embodiment
The present invention is further described below in conjunction with accompanying drawing and exemplifying embodiment:
One, overall
As Fig. 1, this device comprises laser level 00 to be checked, is provided with cube metope 10, CCD detecting device 20, serial ports 30 and host computer 40;
Cube metope 10 is grown up in 5 meters, is wider than 5 meters, and is tall and big in 3 meters; Cube metope 10 comprises the 1st, 2 vertical walls 11,12, end face 15 and bottom surface 16;
CCD detecting device 20 comprises 8 line array CCD detecting devices and 1 area array CCD detecting device;
On bottom surface 16, place laser level 00 to be checked;
On the 1st vertical wall 11, horizontal line left side point line array CCD detecting device 21 and the right point of horizontal line line array CCD detecting device about 23 are arranged at level 5 meters 2 points apart, and horizontal line near point line array CCD detecting device 22 usefulness one fixed support is provided with distance the 1st vertical wall 11 in 1 meter place;
On the 1st vertical wall 11, some line array CCD detecting device 25 and following some line array CCD detecting device 24 upper and lower settings of perpendicular line are in vertical 3 meters 2 points apart on the perpendicular line;
The 2nd vertical wall 12 is provided with the right point of perpendicular line line array CCD detecting device 28;
End face 5 is provided with the 1st mutually orthogonal zenith quadrature line array CCD detecting device 26 and the 2nd zenith quadrature line array CCD detecting device 27;
Under the cultellation over the ground of laser level 00, be provided with under one a right alignment area array CCD detecting device 29;
To the right alignment area array CCD detecting device 29, other 8 linear array detecting devices are connected with 8 road serial ports 30 respectively except that down;
Principle of work:
As Fig. 1,2,3,4,5, judgement and detection that horizontal line left side point line array CCD detecting device 21, horizontal line near point line array CCD detecting device 22 and the right point of horizontal line line array CCD detecting device 23 are formed laser level 00 horizontal guideline error criterion to be checked and indexs such as live width precision and horizontal pitching degree;
Point line array CCD detecting device 25 is formed laser level 00 vertical guideline error criterion to be checked and live width precision on following some line array CCD detecting device 24 of perpendicular line and the perpendicular line judgement and detection;
The 1st zenith quadrature line array CCD detecting device 26 and the 2nd zenith quadrature line array CCD detecting device 27 are formed the quadrature error index of 00 liang of mutual perpendicular line of laser level to be checked and the judgement and the detection of live width precision;
The right point of some line array CCD detecting device 25 and perpendicular line line array CCD detecting device 28 is formed 90 ° of angle error indexs of laser level 00 vertical line to be checked on following some line array CCD detecting device 24 of perpendicular line, the perpendicular line judgement and detection;
Down 00 time right alignment to laser spots of 29 pairs of laser levels to be checked of a right alignment area array CCD detecting device is detected.
8 road serial ports 30 carry out parallel connection with 8 road line array CCD detecting devices, the laser rays positional information and the width information of gathering are communicated by serial ports 30 and host computer 40, host computer 40 can be specified a certain road transmission of corresponding 8 road line array CCD detecting devices data by sending different instructions, thereby realizes the data acquisition and processing (DAP) to 8 road line array CCD detecting devices.
Standard water horizontal line and standard vertical line and standard right angle are all demarcated by high-precision level, transit or total powerstation.
Two, each functional part
1, the CCD detecting device 20
CCD detecting device 20 is selected high-precision 8 line array CCD detecting devices and 1 area array CCD detecting device for use; 8 line array CCD detecting devices are handled signal by single-chip microcomputer after overdrive amplification and filtering, calculate the positional information and the width information of laser beam, and export by serial ports.
The line array CCD detecting device can be selected TCD1501D; The area array CCD detecting device can be selected FDSCCD.
2, serial ports 30
3, host computer 40
Three, using method
1, this device can be realized the detection to dissimilar laser level to be checked 00 such as 1V1H-4V4H respectively, is needing incoming inspection personnel title before each the detection, is detecting parameter informations such as date, product plane No. and model.
2, the corner scale by laser level 00 to be checked carries out respectively 0 °, 90 °, 180 °, 270 ° laser levels during with 360 ° are thrown line, vertically thrown line, zenith corner and down a laser run location track is detected, and obtains the positional information of laser beam at line array CCD.Wherein 360 ° the time, laser level 00 all detected parameters to be checked are all got back to original position, and the detection data during with 0 ° compare, do the 5th detection again, thereby with the first time testing result compare, can carry out repeatability index and detect, the index that obtains repeatability is judged.
3, the check data that shows needs two kinds of colors, is when qualified such as data, and each data presentation be green, if a certain index is defective, then shows redness.
4, the printing function button is set, testing result is directly printed output.
5, testing result saves as the excel document, can carry out the statistics of data.
Four, after testing, this device technique index is as follows:
| Horizontal accuracy | ± 1mm/5m, ± 2mm/5m, ± 2mm/10m |
| Vertical precision | ± 1mm/5m, ± 1.5mm/3m |
| The |
40 ", 1 ', 2 ' |
| The zenith precision | ± 1mm/3m, ± 1.5mm/3m, ± 1mm/2.5m |
| Down to a precision | Φ 2mm/2.5m, Φ 1.5mm/3m |
| The line of laser rays is thick | 2mm, 2.5mm, 3mm. |
Claims (5)
1. the laser level digitizing pick-up unit based on line array CCD comprises laser level to be checked (00), it is characterized in that:
Be provided with a cube metope (10), CCD detecting device (20), serial ports (30) and host computer (40);
Cube metope (10) is grown up in 5 meters, is wider than 5 meters, and is tall and big in 3 meters; Cube metope (10) comprises the 1st, 2 vertical walls (11,12), end face (15) and bottom surface (16);
CCD detecting device (20) comprises 8 line array CCD detecting devices and 1 area array CCD detecting device;
Wherein 8 line array CCD detecting devices are respectively some line array CCD detecting device (25), following some line array CCD detecting device of perpendicular line (24), the right point of perpendicular line line array CCD detecting device (28), the 1st zenith quadrature line array CCD detecting device (26) and the 2nd zenith quadrature line array CCD detecting devices (27) on horizontal line left side point line array CCD detecting device (21), the right point of horizontal line line array CCD detecting device (23), horizontal line near point line array CCD detecting device (22), the perpendicular line; 1 area array CCD detecting device is down to a right alignment area array CCD detecting device (29);
(16) are gone up and are placed laser level to be checked (00) in the bottom surface;
On the 1st vertical wall (11), be arranged at level 5 meters 2 points apart about horizontal line left side point line array CCD detecting device (21) and horizontal line right some line array CCD detecting device (23), horizontal line near point line array CCD detecting device (22) is provided with distance the 1st vertical wall (11) in 1 meter place with a fixed support;
On the 1st vertical wall (11), some line array CCD detecting device (25) and following some line array CCD detecting device of perpendicular line (24) upper and lower settings are in vertical 3 meters 2 points apart on the perpendicular line;
The 2nd vertical wall (12) is provided with the right point of perpendicular line line array CCD detecting device (28);
End face (15) is provided with the 1st mutually orthogonal zenith quadrature line array CCD detecting device (26) and the 2nd zenith quadrature line array CCD detecting device (27);
Under the cultellation over the ground of laser level (00), be provided with under one a right alignment area array CCD detecting device (29);
To the right alignment area array CCD detecting device (29), other 8 line array CCD detecting devices are connected with 8 road serial ports (30) respectively except that down;
Serial ports (30) is connected with host computer (40).
2. by the described laser level digitizing of claim 1 pick-up unit, it is characterized in that: CCD detecting device (20) is selected 8 line array CCD detecting devices of high precision and 1 area array CCD detecting device for use.
3. by the described laser level digitizing of claim 1 pick-up unit, it is characterized in that: serial ports (30) is selected 8 road serial ports HUB for use.
4. by the described laser level digitizing of claim 1 pick-up unit, it is characterized in that: host computer (40) is selected PC for use.
5. by the described laser level digitizing of claim 1 pick-up unit, it is characterized in that: host computer (40) is selected notebook computer for use.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101240521A CN101782403B (en) | 2010-03-09 | 2010-03-09 | Digital detection device of laser cast instrument based on linear array charge coupled device (CCD) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101240521A CN101782403B (en) | 2010-03-09 | 2010-03-09 | Digital detection device of laser cast instrument based on linear array charge coupled device (CCD) |
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| Publication Number | Publication Date |
|---|---|
| CN101782403A CN101782403A (en) | 2010-07-21 |
| CN101782403B true CN101782403B (en) | 2011-11-30 |
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| CN2010101240521A Expired - Fee Related CN101782403B (en) | 2010-03-09 | 2010-03-09 | Digital detection device of laser cast instrument based on linear array charge coupled device (CCD) |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102679877B (en) * | 2012-06-01 | 2014-08-06 | 吉林大学 | Calibration system for commercial vehicle vision measurement based on longitude and altitude spatial positioning principle |
| CN105806362B (en) * | 2014-12-30 | 2018-08-24 | 上海新跃仪表厂 | A kind of ccd detector radiation effect experimental rig |
| 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 |
| CN206989949U (en) * | 2017-03-21 | 2018-02-09 | 常州华达科捷光电仪器有限公司 | A kind of laser level |
| CN107084748B (en) * | 2017-05-24 | 2019-09-10 | 东南大学 | The laser level automatic checkout system of view-based access control model |
| 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 |
| CN111305514B (en) * | 2020-02-26 | 2021-07-13 | 广东博智林机器人有限公司 | Plastering method and device |
| CN113639720A (en) * | 2021-07-01 | 2021-11-12 | 东台市上诚光电科技有限公司 | Laser demarcation device detection system and method based on CCD camera |
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| CN201637421U (en) * | 2010-03-09 | 2010-11-17 | 武汉方寸科技有限公司 | Laser demarcation instrument digitization detecting device based on linear array CCD (Charge Coupled Device) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2912577B2 (en) * | 1996-02-09 | 1999-06-28 | 盛宗 黎 | Optical measuring device |
| US7134211B2 (en) * | 2004-03-18 | 2006-11-14 | Black & Decker Inc. | Laser level |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201637421U (en) * | 2010-03-09 | 2010-11-17 | 武汉方寸科技有限公司 | Laser demarcation instrument digitization detecting device based on linear array CCD (Charge Coupled Device) |
Non-Patent Citations (2)
| Title |
|---|
| JP特开平9-222325A 1997.08.26 |
| 刘海波 等.激光投线仪进行校准的方法研究及不确定度分析.《计量技术》.2007,(第10期),49-51. * |
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