CN101004348A - Visual intelligent worktable for inspecting, adjusting and calibrating allround performance of motormeter, and Visual intelligent control mode - Google Patents
Visual intelligent worktable for inspecting, adjusting and calibrating allround performance of motormeter, and Visual intelligent control mode Download PDFInfo
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- CN101004348A CN101004348A CN 200610070026 CN200610070026A CN101004348A CN 101004348 A CN101004348 A CN 101004348A CN 200610070026 CN200610070026 CN 200610070026 CN 200610070026 A CN200610070026 A CN 200610070026A CN 101004348 A CN101004348 A CN 101004348A
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Abstract
A visual intelligent detection and calibration table of overall performance on automobile instrument (AI) is prepared for using industrial computer as kernel; applying electric signal generator and air pressure servo control system to provide standard switch signal, pulse signal, resistance value input signal and air pressure value signal onto AI; using 3-D coordinate adjustable video camera to shoot image of pointers on AI to obtain position of pointers and scale on index dial for calculating out error value of instrument indication then realizing intelligent calibration by using calibration service communication port set on AI.
Description
Technical field
The present invention relates to a kind of use industrial control computer, join video camera and monitor control system, the automobile instrument integral performance is carried out image vision detect, and at adjustment platform and the Visual intelligent control mode thereof that can carry out the Visual intelligent adjustment by monolithic processor controlled automobile instrument.
Background technology
At present to detect mainly be vision range estimation by artificial to domestic automobile instrument pointing accuracy, and its major defect is: 1. the position of people's eyes and instrument to be measured, angle, apart from inconsistent, cause the consistance of testing result poor.2. the scale of automobile instrument is bigger, is example with speed of a motor vehicle instrument: minimum scale is 5KM/H, and the eye estimate precision is 2.5KM/H, thereby can't draw error numerical value more accurately.
Problems such as the adjustment of automobile instrument is based on artificial vision range estimation, by manual setting, causes the automobile instrument consistance poor thus, and precision is low.Simultaneously, between the supporting manufacturer of vehicle main frame manufacturer and automobile instrument, can't carry out quality testing and exchange of technology at unified, more accurate quality standard platform.
Summary of the invention
Purpose of the present invention is that a kind of monitoring accuracy height is provided, and error is little, can unified, more accurate quality standard platform detects and the automobile instrument integral performance Visual intelligent of exchange of technology check adjustment platform and Visual intelligent control mode thereof.
For reaching above purpose, automobile instrument integral performance Visual intelligent check adjustment platform, it is characterized in that, industrial control computer 1 and three-dimensional coordinate control-driven system 2, source 5 takes place in electric quantity signal, pneumatic servo control system 6, controllable electric power 9 connects, source 5 takes place in electric quantity signal, pneumatic servo control system 6, controllable electric power 9 is connected with automobile instrument erecting bed 10, automobile instrument erecting bed 10 is connected with adjustment address card 7, adjustment address card 7 is connected with industrial control computer 1, three-dimensional coordinate control-driven system 2 is connected with camera 4, camera 4 is connected with image pick-up card 3, image pick-up card 3 is connected with industrial control computer 1, and industrial control computer 1 is connected with printer 8.
Automobile instrument integral performance Visual intelligent control mode, it is characterized in that, it is core with the industrial control computer, be equipped with electric quantity signal source, pneumatic servo control system provide standard to automobile instrument switching signal, pulse signal, resistance value input signal and gaseous tension value signal etc. take place, by the adjustable video camera of three-dimensional coordinate, automatically aim at automobile instrument dial plate and pointer photographic images, by image pick-up card and image processing software, obtain the position of pointer and dial scale, calculate instrument index error numerical value; The testing result row becomes log file to deposit industrial computer in, can import by printer; If automobile instrument has the adjustment serial communication interface, industrial computer just can send the positive parameter of ginseng, and pointer is offset to assigned scale, reduces error amount until reaching in the precision allowed band, realizes intelligent adjustment.
Now specify the function and the principle of work of each ingredient of the present invention:
Three-dimensional coordinate control-driven system 2 is used to adjust camera position, aims at the dial plate of certain parameter that needs the detection adjustment.Guarantee the consistance and the accurate precision of accuracy of detection.
The image acquisition and processing analytic system, it comprises: video camera 4, image pick-up card 3, and image processing and analyzing software.Video camera 4 and image pick-up card 3 are taken and are obtained digital image information, by the software image Treatment Analysis.At first, when input signal was zero, pointer was designated as the scale place (0) number, photographic images, and by image binaryzation, the edge center coordinate set obtains, and image processing means such as fitting a straight line, obtains at the pointer center of (0) number calibration points money L0.Import (j) number scale physical quantity corresponding again, the pointer centre line L j that obtains in (j) number calibration points with above-mentioned same method, go out angle [alpha] ij between Lj and the L0 by computed in software, α ij during with teaching the standard angle β ij of (j) number scale compare and just can obtain the error amount of instrument in (j) number calibration points instrument indication.
Source 5 takes place in electric quantity signal, and it is to export electric quantity signal by the operation requirement under industrial computer 1 control, is used for the instrument pin and operates in the assigned scale scope on request, detects.Electric quantity signal has: 1, DC pulse, 2, alternating-current pulse, 3, resistance value, 4, common positive switch amount 5, common negative switch amount.
Pneumatic servo control system 6, it is under industrial computer 1 control, by operation requirement output pressure signal value, is used for the manometric detection of automobile.
Adjustment address card 7, it is to link with industrial computer 1 serial communication interface, plays transformation, to adapt to the standard of automobile instrument (Single-chip Controlling, the band communication port can carry out digital regulated) communication port.When number accent type automobile instrument need carry out the precision adjustment, during the beginning that detects, adjustment program switch in industrial computer 1 function software is set to " opening " state, in the testing process, the error amount of instrument surpasses allowed band, and industrial computer 1 will be exported compensation rate according to error amount, through the adjustment address card, send into automobile instrument and rectify a deviation, automatic again duplicate detection is certainly to reaching the precision allowed band.
Controllable electric power 9 under industrial computer 1 control, can be regulated output voltage, satisfies the requirement of automobile instrument different electrical power type, also can satisfy the superpressure long duration test, and reverse applied voltage test etc. need.
The erecting bed 10 of automobile instrument, firm clamping automobile instrument keep meter dial heavy directly in video camera 4.
Printer 8 connects industrial computer 1, management datas such as output testing result.
By above setting, the present invention is a core with the industrial control computer, joins video camera and monitor control system, automobile instrument integral performance (as: parameters such as the speed of a motor vehicle, engine speed, oil mass, water temperature, air pressure, voltage) is carried out image vision detect.And at carrying out the Visual intelligent adjustment by monolithic processor controlled automobile instrument (single-chip microcomputer has communication port, can accept host computer information and carry out parameter regulation).
Description of drawings
Now the present invention is further illustrated in conjunction with the accompanying drawings
Fig. 1 is one-piece construction figure of the present invention
Fig. 2 is a teaching process flow diagram of the present invention
Fig. 3 tests process flow diagram for the present invention transfers
Among the figure 1, source 6, pneumatic servo control system 7, adjustment address card 8, printer 9, controllable electric power 10, automobile instrument erecting bed take place in industrial control computer 2, three-dimensional coordinate control-driven system 3, image pick-up card 4, camera 5, electric quantity signal
Embodiment
As shown in Figure 1, the present invention is mainly by industrial control computer 1, camera 4, automobile instrument erecting bed 10 is formed, wherein, industrial control computer 1 and three-dimensional coordinate control-driven system 2, source 5 takes place in electric quantity signal, pneumatic servo control system 6, controllable electric power 9 connects, source 5 takes place in electric quantity signal, pneumatic servo control system 6, controllable electric power 9 is connected with automobile instrument erecting bed 10, automobile instrument erecting bed 10 is connected with adjustment address card 7, adjustment address card 7 is connected with industrial control computer 1, three-dimensional coordinate control-driven system 2 is connected with camera 4, camera 4 is connected with image pick-up card 3, image pick-up card 3 is connected with industrial control computer 1, and industrial control computer 1 is connected with printer 8.
Now specify teaching of the present invention and detection check process in conjunction with Fig. 1:
The new phenotype teaching of automobile instrument (is example with the combination instrument):
The model of the new phenotype of input on industrial computer, characteristic parameter (supply voltage, whether can digital regulated pointing accuracy, combination instrument parameter dial plate quantity etc.);
(i) number parameter dial plate (is example with the speed of a motor vehicle) is carried out teaching, input parameter table reel number i, electric quantity signal kind (speed of a motor vehicle respective frequencies signal), the signal source channel number (air pressure, servo-drive system channel number) of input (i) number dial plate correspondence;
(i) number parameter list cursor position of sitting crosslegged is carried out teaching, manual operation, by the three-dimensional coordinate control-driven system, the guiding camera is aimed at (i) number parameter dial plate, when the position of parameter dial plate image on the industrial computer display reaches assigned address, the camera perpendicular alignmnet dial plate center of circle, the operation industrial computer writes down Pi (Xi automatically, Yi, Zi) coordinate;
(i) number parameter dial plate (0) individual calibration points is carried out teaching, at first, when input signal is zero, by electric quantity signal source (pneumatic servo) output zero-signal takes place and give automobile instrument, pointer is designated as scale place, photographic images (0) number, pass through image binaryzation, the edge center coordinate set obtains, and image processing means such as fitting a straight line, obtains at the pointer center of (0) number calibration points money L0;
(i) number individual calibration points of parameter dial plate (j) (is example with 60KM/H) is carried out teaching, corresponding (j) individual calibration points, source (pneumatic servo) output (100HZ frequency) signal takes place by electric quantity signal and gives automobile instrument in input and record relevant parameter value (110HZ);
Because may there be error in automobile instrument (i) number individual calibration points of parameter dial plate (j), gauge pointer can depart from (j) individual calibration points, the correction of manual input parameter value, by electric quantity signal source (pneumatic servo) output bias compensation rate taking place and give automobile instrument, makes the individual calibration points of pointed (j);
Photographic images through the software processes analysis, detects at (j) individual calibration points place, the angle standard value β (ij) of pointer centre line L j and (0) individual calibration points, and note down.Corresponding (j) individual calibration points, input and recording error allowed band Δ β (ij);
To (i) number whole calibration points of parameter dial plate (20,40,60,--180KM/H) carry out teaching;
As stated above other parameter dial plates are carried out teaching, engine speed parameter adopts alternating-current pulse signal, fuel quantity parameter to adopt resistance value signal, water temperature parameter to adopt resistance value signal, pneumatic parameter to adopt pneumatic servo pressure signal etc.
Now illustrate that in conjunction with Fig. 3 automobile instrument detects adjustment (is example with the combination instrument):
Automobile instrument integral performance Visual intelligent check adjustment platform system opens, place automobile instrument, connect input, output line, the input phenotype, access the trace routine of storing after the teaching,, need to carry out precision again and regulate automatically if automobile instrument is can digital regulated type, open the adjustment program, ready;
(Zi), camera is aimed at (i) number parameter dial plate automatically for Xi, Yi according to (i) number parameter dial plate teaching coordinate position Pi;
(i) number parameter dial plate (0) individual calibration points is detected, at first, by electric quantity signal source (pneumatic servo) output zero-signal taking place gives automobile instrument, pointer is designated as the scale place (0) number, photographic images, by image processing means, obtain at the pointer center of (0) number calibration points money L0;
(i) number individual calibration points of parameter dial plate (j) (is example with 60KM/H) is detected,, by electric quantity signal source (pneumatic servo) output (100HZ frequency) signal takes place and give automobile instrument according to tutorial program;
Photographic images, through the software processes analysis, calculate (j) individual calibration points place, the angle [alpha] ij between pointer centre line L j and the L0, α ij during with teaching the standard angle β ij of (j) number scale compare and just can obtain the error amount Δ α ij of this calibration points instrument indication, and note down;
Corresponding (j) individual calibration points compares error amount Δ α ij and error allowed band Δ β (ij); Can judge this calibration points, whether precision is qualified;
If precision is defective, allow to enter the industrial computer precision and regulate program, give automobile instrument by adjustment communication port output bias compensation rate, the inner scm software correction instrument of automobile instrument list index output angle α ij reaches accuracy requirement;
To (i) number whole calibration points of parameter dial plate (20,40,60,--180KM/H) detect and adjustment;
As stated above other parameter dial plates are detected and adjustment, engine speed parameter adopts alternating-current pulse signal, fuel quantity parameter to adopt resistance value signal, water temperature parameter to adopt resistance value signal, pneumatic parameter to adopt pneumatic servo pressure signal etc.
Claims (2)
1, automobile instrument integral performance Visual intelligent check adjustment platform, it is characterized in that: industrial control computer (1) and three-dimensional coordinate control-driven system (2), source (5) takes place in electric quantity signal, pneumatic servo control system (6), controllable electric power (9) connects, source (5) takes place in electric quantity signal, pneumatic servo control system (6), controllable electric power (9) is connected with automobile instrument erecting bed (10), automobile instrument erecting bed (10) is connected with adjustment address card (7), adjustment address card (7) is connected with industrial control computer (1), three-dimensional coordinate control-driven system (2) is connected with camera (4), camera (4) is connected with image pick-up card (3), image pick-up card (3) is connected with industrial control computer (1), and industrial control computer (1) is connected with printer (8).
2, automobile instrument integral performance Visual intelligent control mode, it is characterized in that: it is core with the industrial control computer, be equipped with electric quantity signal source, pneumatic servo control system provide standard to automobile instrument switching signal, pulse signal, resistance value input signal and gaseous tension value signal etc. take place, by the adjustable video camera of three-dimensional coordinate, automatically aim at automobile instrument dial plate and pointer photographic images, by image pick-up card and image processing software, obtain the position of pointer and dial scale, calculate instrument index error numerical value; The testing result row becomes log file to deposit industrial control computer in, can be by printer output; If automobile instrument has the adjustment serial communication interface, industrial control computer just can send corrected parameter, and pointer is offset to assigned scale, reduces error amount until reaching in the precision allowed band, realizes intelligent adjustment.
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| CN 200610070026 CN101004348A (en) | 2006-11-03 | 2006-11-03 | Visual intelligent worktable for inspecting, adjusting and calibrating allround performance of motormeter, and Visual intelligent control mode |
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| CN 200610070026 CN101004348A (en) | 2006-11-03 | 2006-11-03 | Visual intelligent worktable for inspecting, adjusting and calibrating allround performance of motormeter, and Visual intelligent control mode |
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| CN101672663B (en) * | 2009-09-18 | 2011-04-13 | 中国汽车技术研究中心 | Auto meter visual detecting system based on computer and detecting method thereof |
| CN102573190A (en) * | 2010-12-27 | 2012-07-11 | 深圳市长运通光电技术有限公司 | Control method and system for output current of LED (Light Emitting Diode) driving circuit |
| CN102628745A (en) * | 2012-04-27 | 2012-08-08 | 航天科技控股集团股份有限公司 | Visual bionic intelligent detection system based on CAN (Controller Area Network) network composite signal source |
| CN102628854A (en) * | 2012-03-29 | 2012-08-08 | 赵宝明 | Automobile instrument board detection system and method |
| CN103018406A (en) * | 2012-12-05 | 2013-04-03 | 山东省计量科学研究院 | Automatic intrinsic safety meter checking system |
| CN103207091A (en) * | 2013-04-16 | 2013-07-17 | 深圳市元征科技股份有限公司 | Device and method for detecting automobile meter |
| CN103697929A (en) * | 2013-12-27 | 2014-04-02 | 青岛东田汽车电子科技有限公司 | Instrument pointer movement state detection method |
| CN103761347A (en) * | 2013-12-21 | 2014-04-30 | 柳州航盛科技有限公司 | Automobile combination instrument test recording system |
| CN103761346A (en) * | 2013-12-21 | 2014-04-30 | 柳州航盛科技有限公司 | Automobile combination instrument test recording method |
| CN103759754A (en) * | 2013-12-21 | 2014-04-30 | 柳州航盛科技有限公司 | Test recording device of combined instrument of automobile |
| CN104111029A (en) * | 2013-04-19 | 2014-10-22 | 延锋伟世通汽车电子有限公司 | Machine vision detection system used for electronic product processing inspection |
| CN105091927A (en) * | 2015-08-20 | 2015-11-25 | 浙江中科领航汽车电子有限公司 | All-liquid-crystal automobile instrument automatic test platform |
| CN105509814A (en) * | 2016-01-14 | 2016-04-20 | 苏州富强科技有限公司 | Automobile dashboard detection table |
| CN105727457A (en) * | 2014-12-11 | 2016-07-06 | 苏州雷泰医疗科技有限公司 | Radiation treatment parameter verification apparatus and method, and radiation treatment device |
| CN106404033A (en) * | 2016-08-03 | 2017-02-15 | 重庆盟讯电子科技有限公司 | Automobile instrument panel automatic detection system based on angle sensor |
| CN106885605A (en) * | 2017-02-22 | 2017-06-23 | 余佳盈 | A kind of CCD detection methods of Industry Control switch |
| CN108762181A (en) * | 2018-04-11 | 2018-11-06 | 航天科技控股集团股份有限公司 | Automobile meter pointer adjusting process |
| CN109583148A (en) * | 2019-01-23 | 2019-04-05 | 武汉科技大学 | A kind of pointer design method of liquid crystal instrument |
| CN111948208A (en) * | 2020-08-13 | 2020-11-17 | 东风电子科技股份有限公司 | Automatic detection system for realizing instrument visual identification |
| CN112595353A (en) * | 2020-12-08 | 2021-04-02 | 航天科技控股集团股份有限公司 | Intelligent instrument vision checking method based on network communication |
| CN112595354A (en) * | 2020-12-08 | 2021-04-02 | 航天科技控股集团股份有限公司 | Intelligent instrument vision checking system based on network communication |
| CN112781642A (en) * | 2020-12-30 | 2021-05-11 | 北京青云航空仪表有限公司 | Calibration method of pointer instrument |
| CN117007522A (en) * | 2023-07-14 | 2023-11-07 | 浙江科正电子信息产品检验有限公司 | Automobile electronic component quality detection system |
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- 2006-11-03 CN CN 200610070026 patent/CN101004348A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101672663B (en) * | 2009-09-18 | 2011-04-13 | 中国汽车技术研究中心 | Auto meter visual detecting system based on computer and detecting method thereof |
| CN102573190A (en) * | 2010-12-27 | 2012-07-11 | 深圳市长运通光电技术有限公司 | Control method and system for output current of LED (Light Emitting Diode) driving circuit |
| CN102628854A (en) * | 2012-03-29 | 2012-08-08 | 赵宝明 | Automobile instrument board detection system and method |
| CN102628745A (en) * | 2012-04-27 | 2012-08-08 | 航天科技控股集团股份有限公司 | Visual bionic intelligent detection system based on CAN (Controller Area Network) network composite signal source |
| CN103018406A (en) * | 2012-12-05 | 2013-04-03 | 山东省计量科学研究院 | Automatic intrinsic safety meter checking system |
| CN103207091A (en) * | 2013-04-16 | 2013-07-17 | 深圳市元征科技股份有限公司 | Device and method for detecting automobile meter |
| CN104111029A (en) * | 2013-04-19 | 2014-10-22 | 延锋伟世通汽车电子有限公司 | Machine vision detection system used for electronic product processing inspection |
| CN103759754A (en) * | 2013-12-21 | 2014-04-30 | 柳州航盛科技有限公司 | Test recording device of combined instrument of automobile |
| CN103761346A (en) * | 2013-12-21 | 2014-04-30 | 柳州航盛科技有限公司 | Automobile combination instrument test recording method |
| CN103761347A (en) * | 2013-12-21 | 2014-04-30 | 柳州航盛科技有限公司 | Automobile combination instrument test recording system |
| CN103697929A (en) * | 2013-12-27 | 2014-04-02 | 青岛东田汽车电子科技有限公司 | Instrument pointer movement state detection method |
| CN103697929B (en) * | 2013-12-27 | 2016-05-25 | 青岛东田智能科技有限公司 | The detection method of gauge pointer motion state |
| CN105727457B (en) * | 2014-12-11 | 2019-07-23 | 苏州雷泰医疗科技有限公司 | A kind of radiation treatment parameters verifying device and radiotherapy equipment and verification method |
| CN105727457A (en) * | 2014-12-11 | 2016-07-06 | 苏州雷泰医疗科技有限公司 | Radiation treatment parameter verification apparatus and method, and radiation treatment device |
| CN105091927A (en) * | 2015-08-20 | 2015-11-25 | 浙江中科领航汽车电子有限公司 | All-liquid-crystal automobile instrument automatic test platform |
| CN105509814A (en) * | 2016-01-14 | 2016-04-20 | 苏州富强科技有限公司 | Automobile dashboard detection table |
| CN106404033A (en) * | 2016-08-03 | 2017-02-15 | 重庆盟讯电子科技有限公司 | Automobile instrument panel automatic detection system based on angle sensor |
| CN106885605A (en) * | 2017-02-22 | 2017-06-23 | 余佳盈 | A kind of CCD detection methods of Industry Control switch |
| CN108762181A (en) * | 2018-04-11 | 2018-11-06 | 航天科技控股集团股份有限公司 | Automobile meter pointer adjusting process |
| CN109583148A (en) * | 2019-01-23 | 2019-04-05 | 武汉科技大学 | A kind of pointer design method of liquid crystal instrument |
| CN111948208A (en) * | 2020-08-13 | 2020-11-17 | 东风电子科技股份有限公司 | Automatic detection system for realizing instrument visual identification |
| CN112595353A (en) * | 2020-12-08 | 2021-04-02 | 航天科技控股集团股份有限公司 | Intelligent instrument vision checking method based on network communication |
| CN112595354A (en) * | 2020-12-08 | 2021-04-02 | 航天科技控股集团股份有限公司 | Intelligent instrument vision checking system based on network communication |
| CN112781642A (en) * | 2020-12-30 | 2021-05-11 | 北京青云航空仪表有限公司 | Calibration method of pointer instrument |
| CN117007522A (en) * | 2023-07-14 | 2023-11-07 | 浙江科正电子信息产品检验有限公司 | Automobile electronic component quality detection system |
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