CN104596562A - Device for detecting blocking of automobile meter pointer - Google Patents
Device for detecting blocking of automobile meter pointer Download PDFInfo
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- CN104596562A CN104596562A CN201410831621.4A CN201410831621A CN104596562A CN 104596562 A CN104596562 A CN 104596562A CN 201410831621 A CN201410831621 A CN 201410831621A CN 104596562 A CN104596562 A CN 104596562A
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- clamping stagnation
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Abstract
The invention discloses a device for detecting the blocking of an automobile meter pointer. The device comprises a computer, at least one industrial camera which is connected to the computer to acquire image or video information of the movement of the meter point, and a system control module which is connected with the computer to send an instruction of moving at the set angular speed to the meter pointer; the computer is used for analyzing the blocking of the angular speed of the meter pointer in metering through the pointer blocking detection software; the allowance between the movement angular speed of the meter pointer and the set angular speed is +/ -5 degrees per second; when the movement angular speed of the meter pointer exceeds the allowance of the set angular speed, the meter pointer is blocked.
Description
Technical field
The present invention relates to automobile meter pointer clamping stagnation detection field, particularly relate to a kind of automobile meter pointer clamping stagnation checkout equipment.
Background technology
Shake, clamping stagnation are one of modal defects of automobile meter pointer, and its main producing cause is stepping motor gear existing defects, has impurity, has bad tooth etc.Be difficult to go from source the generation preventing pointer clamping stagnation, be necessary the product being tested with clamping stagnation on a production line, in order to avoid the product that there is catching phenomenon is left to client existing automobile meter pointer clamping stagnation detection method, mainly Manual Visual Inspection.Be characterized in that accuracy of detection is low, slight catching phenomenon not easy to identify, speed be slow, artificial vision's fatiguability, cannot long-time operation, subjective judgement factor high, False Rate is high.Thus, Manual Visual Inspection is not suitable for production line of batch, there is higher quality risk to production yet.
Summary of the invention
The object of the invention is: provide a kind of automobile meter pointer clamping stagnation checkout equipment, it replaces manually carrying out clamping stagnation detection to automobile meter pointer.
Technical scheme of the present invention is: a kind of automobile meter pointer clamping stagnation checkout equipment, it comprises
One computing machine;
At least one industrial camera, described industrial camera network is connected to computing machine, and described industrial camera is used for image or the video information of acquisition instrument hand motion;
One system control module; Described system control module is connected to computing machine, and described system control module is used for sending with the instruction of the angular velocity of setting motion to gauge pointer;
After described system control module sends the instruction of motion to gauge pointer, the image of described industrial camera acquisition instrument hand motion or video information, and the image of collection or video information are sent to described computing machine; Described computing machine utilizes image development process resume module image or video information; Described computing machine carries out clamping stagnation analysis by pointer clamping stagnation detection module to the angular velocity that gauge pointer moves, the angular velocity of satellite motion of described gauge pointer is 5 degree/second of +/-relative to the tolerance of the angular velocity of setting, and the tolerance exceeding set angular velocity when the angular velocity of satellite motion of described gauge pointer is then judged to be that gauge pointer exists clamping stagnation.
Below technique scheme is further expalined.
Described industrial camera is provided with 4.
Industrial camera described in each is connected with computing machine by GigE gigabit Ethernet.
The operating system of described computing machine is Windows XP operating system.
Advantage of the present invention is: automobile meter pointer clamping stagnation checkout equipment of the present invention, and it has the advantages such as speed is fast, precision is high, can work long hours, and is used for replacing Manual Visual Inspection, improves efficiency, reduces quality risk.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is the module diagram of the embodiment of the present invention.
Wherein: 1 computing machine; 2 industrial cameras; 3 system control modules; 11 image development process modules; 12 pointer clamping stagnation detection modules.
Embodiment
Embodiment 1: as shown in Figure 1, a kind of automobile meter pointer clamping stagnation checkout equipment, it comprises
One computing machine 1, at least one industrial camera 2, system control module 3.
Computing machine 1 is provided with image development process module 11, pointer clamping stagnation detection module 12.The operating system of computing machine 1 is Windows XP operating system.
Industrial camera 2 is provided with 4.The image acquisition speed of every platform industrial camera 2 is 25 frames/second.。Each industrial camera 2 is connected with computing machine 1 by GigE gigabit Ethernet.Described its theoretical velocity of GigE gigabit Ethernet is 133MBps, and actual speed is at about 350MBps.Industrial camera 2 network is connected to computing machine 1, and industrial camera 2 is for the image of acquisition instrument hand motion or video information.Industrial camera 2 passes through GigE gigabit Ethernet transmitting image to host computer 1, and can carry out clamping stagnation detection to 4 root pointers simultaneously.
System control module 3 is connected to computing machine 1, and system control module 3 is for sending to gauge pointer with the instruction of the angular velocity of setting motion.
After described system control module 3 sends the instruction of motion to gauge pointer, the image of described industrial camera 2 acquisition instrument hand motion or video information, and the image of collection or video information are sent to described computing machine 1; Described computing machine 1 utilizes image development process module 11 to process image or video information; Described computing machine 1 carries out clamping stagnation analysis by the angular velocity of pointer clamping stagnation detection module 12 pairs of gauge pointer motions, the angular velocity of satellite motion of described gauge pointer is 5 degree/second of +/-relative to the tolerance of the angular velocity of setting, and the tolerance exceeding set angular velocity when the angular velocity of satellite motion of described gauge pointer is then judged to be that gauge pointer exists clamping stagnation.
The present embodiment relates to the fields such as computing machine 1 image processing techniques, LabVIEW software programming technique.Hardware comprises industrial camera 2, computing machine 1, gigabit ethernet card, system control module 3; Analyzing and processing part comprises this checkout equipment and comprises following hardware: GigE gigabit Ethernet, gigabit ethernet card 4 pieces and interface; Industrial camera 24,11, computing machine, product electric controling part, device structure parts.This checkout equipment comprises with lower module: the Windows XP operating system of Microsoft; The LabVIEW development platform of American National instrument; The image development process module 11Vision Development Module of American National instrument; From the pointer clamping stagnation detection module 12 of exploitation.
When examinations, computing machine 1 is by sending instruction to automobile instrument, steering needle with even speed (53 degree/second) from minimum scale clockwise movement to full scale, again from full scale counterclockwise movement to minimum scale, in hand motion process, utilize industrial camera 2 continuous acquisition image, recycling image processing techniques analyzes the variation tendency of angular velocity in hand motion process, judges the catching phenomenon existed in hand motion process.The catching phenomenon having 0.1 second in hand motion process can be judged.
Concrete: after inspection software runs, product is put in tool by operator, by start button start-up routine, equipment is by after autoscan product ID, power on to product, computing machine 1 is by sending instruction to automobile instrument, make product introduction pointer clamping stagnation detecting pattern, steering needle with even speed (setting speed is 53 degree/second) from minimum scale clockwise movement to full scale, again from full scale counterclockwise movement to minimum scale, in hand motion process, utilize industrial camera 2 continuous acquisition image (collection 25 two field picture per second), in the process of hand motion, industrial camera 2 is with 25 frames/second continuous acquisition image, image development process module 11 and pointer clamping stagnation detection module 12 coordinate the variation tendency analyzing angular velocity in hand motion process, judge the catching phenomenon existed in hand motion process.Recycling image processing techniques, namely analyzes the position of each two field picture pointer, calculates pointer angular velocity.Finally obtain the angular velocity in the whole motion process of pointer, in theory pointer angular velocity 53 degree/second +/-5 degree interiorly to float, if any abnormal angular velocity, then there is catching phenomenon, product is refused out by equipment.
It should be pointed out that for the present invention through absolutely proving, also can have the embodiment of multiple conversion and remodeling, be not limited to the specific embodiment of above-mentioned embodiment.Above-described embodiment is as just explanation of the present invention, instead of limitation of the present invention.In a word, protection scope of the present invention should comprise those apparent conversion or alternative and remodeling to those skilled in the art.
Claims (4)
1. an automobile meter pointer clamping stagnation checkout equipment, is characterized in that: it comprises
One computing machine;
At least one industrial camera, described industrial camera network is connected to computing machine, and described industrial camera is used for image or the video information of acquisition instrument hand motion;
One system control module; Described system control module is connected to computing machine, and described system control module is used for sending with the instruction of the angular velocity of setting motion to gauge pointer;
After described system control module sends the instruction of motion to gauge pointer, the image of described industrial camera acquisition instrument hand motion or video information, and the image of collection or video information are sent to described computing machine; Described computing machine utilizes image development process resume module image or video information; Described computing machine carries out clamping stagnation analysis by pointer clamping stagnation detection module to the angular velocity that gauge pointer moves, the angular velocity of satellite motion of described gauge pointer is 5 degree/second of +/-relative to the tolerance of the angular velocity of setting, and the tolerance exceeding set angular velocity when the angular velocity of satellite motion of described gauge pointer is then judged to be that gauge pointer exists clamping stagnation.
2. automobile meter pointer clamping stagnation checkout equipment according to claim 1, is characterized in that: described industrial camera is provided with 4.
3. automobile meter pointer clamping stagnation checkout equipment according to claim 1, is characterized in that: industrial camera described in each is connected with computing machine by GigE gigabit Ethernet.
4. automobile meter pointer clamping stagnation checkout equipment according to claim 1, is characterized in that: the operating system of described computing machine is Windows XP operating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831621.4A CN104596562A (en) | 2014-12-23 | 2014-12-23 | Device for detecting blocking of automobile meter pointer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831621.4A CN104596562A (en) | 2014-12-23 | 2014-12-23 | Device for detecting blocking of automobile meter pointer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104596562A true CN104596562A (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410831621.4A Pending CN104596562A (en) | 2014-12-23 | 2014-12-23 | Device for detecting blocking of automobile meter pointer |
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| CN (1) | CN104596562A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700458A (en) * | 2016-03-25 | 2016-06-22 | 航天科技控股集团股份有限公司 | Automotive instrument intelligent testing device based on PLC control |
| CN110866440A (en) * | 2019-09-27 | 2020-03-06 | 惠州市德赛西威汽车电子股份有限公司 | Pointer instrument deep learning network building method, detection method and system |
-
2014
- 2014-12-23 CN CN201410831621.4A patent/CN104596562A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105700458A (en) * | 2016-03-25 | 2016-06-22 | 航天科技控股集团股份有限公司 | Automotive instrument intelligent testing device based on PLC control |
| CN110866440A (en) * | 2019-09-27 | 2020-03-06 | 惠州市德赛西威汽车电子股份有限公司 | Pointer instrument deep learning network building method, detection method and system |
| CN110866440B (en) * | 2019-09-27 | 2024-06-07 | 惠州市德赛西威汽车电子股份有限公司 | Pointer instrument deep learning network construction method, pointer instrument deep learning network detection method and pointer instrument deep learning network construction system |
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Application publication date: 20150506 |