CN203163699U - Automobile drum brake friction plate detection system - Google Patents
Automobile drum brake friction plate detection system Download PDFInfo
- Publication number
- CN203163699U CN203163699U CN 201320177858 CN201320177858U CN203163699U CN 203163699 U CN203163699 U CN 203163699U CN 201320177858 CN201320177858 CN 201320177858 CN 201320177858 U CN201320177858 U CN 201320177858U CN 203163699 U CN203163699 U CN 203163699U
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- China
- Prior art keywords
- brake friction
- displacement transducer
- automobile drum
- drum brake
- friction disc
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model provides an automobile drum brake friction plate detection system and belongs to the automatic control detection field. The system is composed of a CCD camera, an image acquisition device, a computer, a data acquisition card and four displacement sensors, wherein the CCD camera is connected with the image acquisition card, the displacement sensors are connected with the data acquisition device, and the image acquisition card and the data acquisition card are connected with the computer. Displacement sensors at the same side and displacement sensor at different sides respectively obtain vertical height and chord length information of a friction plate; the vertical height and chord length information is transmitted to the computer through the data acquisition card; the image acquisition device processes a video image obtained by the CCD camera; arc length information of the friction plate is obtained and is transmitted to the computer; the ratio of an actual chord length measured value to pixels occupied by the chord length displayed in the image is utilized to obtain an actual arc length value corresponding to the pixels occupied by the arc length of the friction plate in the image; obtained diameter, arc length and vertical height information of the friction plate is compared with standard diameter, arc length and vertical height information; and real-time alarm is generated.
Description
Technical field
The utility model provides a kind of automobile drum brake friction disc detection system, belongs to automatic control detection range.
Background technology
Detent is the safety component on the automobile, the diameter of automobile drum brake friction disc and vertical height are two important index, existing technology is just when the design brake bush, solution is preferably proposed, but when follow-up drum type brake friction sheet is detected, but there is not a kind of suitable effective method, classic method utilizes manual measurement to detect, but effect is not fine, at this a kind of detection system of automobile drum brake friction disc is proposed, can be effectively diameter and the vertical height of automobile drum brake friction disc be detected, can calculate the arc length of automobile drum brake friction disc simultaneously, have good practicability.
Summary of the invention
In view of above-mentioned, the utility model fundamental purpose is to provide a kind of automobile drum brake friction disc detection system, can the be real-time automobile drum brake friction disc be detected measured diameter, verticality and the arc length information of friction disc accurately, has very strong practicality.
In order to achieve the above object, the technical scheme that the present utility model is taked is: this system is made up of CCD camera, image acquisition device, computing machine, data collecting card, four displacement transducers, wherein the CCD camera links to each other with image acquisition device, four displacement transducers link to each other with data collecting card, and image acquisition device, data collecting card link to each other with computing machine respectively.The position was gone up by pros in the middle of the CCD camera vertically was positioned over the automobile drum brake friction wafer producing line, keep the action of automobile drum brake friction disc parallel with production line, placing two displacement transducers in position respectively with the production line both sides that automobile drum brake friction disc chord length keeps vertical, and keep homonymy two displacement open positions displacement sensor and two displacement transducers of opposite side just and the vertical height of standard automobile drum type brake friction sheet fair.Combining image collector and data collecting card utilize computing machine that arc length, diameter and the vertical height information of the automobile drum brake friction disc of actual measurement and arc length, diameter, the vertical height information of standard automobile drum type brake friction sheet are compared, if within the permissible error scope, then do not produce alarm, if exceed error range, then report to the police.
The utility model carries out data acquisition by image acquisition device and data collecting card to the automobile drum friction disc, calculate by arc length, vertical height, the diameter of computing machine to the automobile drum brake friction disc of collection, and compare with normal data, in the error allowed band, obtain accurate measured value, practicality is stronger.
Description of drawings
Fig. 1 is systematic schematic diagram of the present utility model.This system is made up of CCD camera (1), image acquisition device (2), computing machine (3), data collecting card (4), displacement transducer (5), displacement transducer (6), displacement transducer (7), displacement transducer (8).
Fig. 2 is that chord length of the present utility model is obtained process flow diagram.Mainly relatively also calculating mean value (11), mean value are formed as automobile drum brake friction disc chord length (12) by displacement transducer (5), displacement transducer (6), displacement transducer (7), displacement transducer (8), calculating automobile drum brake friction disc upside chord length (9), calculating automobile drum brake friction disc downside chord length (10), data collecting card (4), two chord lengths.
Fig. 3 is workflow diagram of the present utility model.Mainly by CCD camera (1), image acquisition device (2), data collecting card (4), displacement transducer (5), displacement transducer (6), displacement transducer (7), displacement transducer (8), obtain automobile drum brake friction disc one side vertical height (13), obtain automobile drum brake friction disc opposite side vertical height (14), both sides mean value relatively and carry out mean value calculation (15), with the vertical height (16) of mean value as the automobile drum brake friction disc, obtain the arc length shape facility (17) of automobile drum brake friction disc, calculate the automobile drum brake shared pixel of friction disc chord length (18), automobile drum brake friction disc chord length measured value (19), calculate both corresponding ratios (20), calculate the arc length of automobile drum friction disc, diameter (21), computing machine output result (22), warning (23) is formed.
Embodiment
Below in conjunction with accompanying drawing the present utility model is further detailed.
Fig. 2 is that chord length is obtained process flow diagram in the utility model, and displacement transducer generally adopts the infrared laser displacement transducer, and as shown in Figure 2, its concrete steps are as follows:
The chord length information that step 3 is obtained above-mentioned two steps is delivered to data collecting card (4) and is handled, two chord lengths compare and calculating mean value (11), if two chord lengths differ bigger, then think the automobile drum brake friction disc defectiveness that detects, if two chord length information are more or less the same, calculating mean value then, with mean value as automobile drum brake friction disc chord length (12);
Fig. 3 is system works flow process figure of the present utility model, and as shown in Figure 3, its concrete steps are as follows:
The video image that step 2 is gathered CCD camera (1) is delivered to image acquisition device (2) and is handled in real time, utilize image binaryzation, mathematical morphology calculating etc., obtain automobile drum brake friction disc arc length shape facility (17), and the calculating automobile drum brake shared pixel of friction disc chord length (18), utilize Fig. 2 process flow diagram can get actual automobile drum brake friction disc chord length measured value (19), the shared pixel of automobile drum brake friction disc chord length and automobile drum brake friction disc chord length measured value are compared, calculate both corresponding ratios (20), carry out shared pixel count and calculate obtaining automobile drum brake friction disc arc length shape facility (17), utilize the shared pixel count of corresponding ratio and arc length, can obtain actual arc length and radius, namely calculate the arc length of automobile drum brake friction disc, diameter (21).
Claims (2)
1. automobile drum brake friction disc detection system, its design feature is: this system is by CCD camera (1), image acquisition device (2), computing machine (3), data collecting card (4), displacement transducer (5), displacement transducer (6), displacement transducer (7), displacement transducer (8) is formed, wherein CCD camera (1) links to each other with image acquisition device (2), displacement transducer (5), displacement transducer (6), displacement transducer (7), displacement transducer (8) links to each other with data collecting card (4), image pick-up card (2), data collecting card (4) links to each other with computing machine (6) respectively.
2. according to claims 1, described a kind of automobile drum brake friction disc detection system, it is characterized in that: the position was gone up by pros in the middle of CCD camera (1) vertically was positioned over the automobile drum brake friction wafer producing line, keep the action of automobile drum brake friction disc parallel with production line, placing two displacement transducers in position respectively with the production line both sides that automobile drum brake friction disc chord length keeps vertical, and maintenance homonymy displacement open position displacement sensor (5), displacement transducer (6), with opposite side displacement transducer (7), displacement transducer (8) vertical height lucky and standard automobile drum type brake friction sheet maintains an equal level, combining image collector (2) and data collecting card (4) utilize computing machine (3) with the arc length of the automobile drum brake friction disc of actual measurement, the arc length of diameter and vertical height information and standard automobile drum type brake friction sheet, diameter, vertical height information compares, if within the permissible error scope, then do not produce alarm, if exceed error range, then report to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177858 CN203163699U (en) | 2013-04-02 | 2013-04-02 | Automobile drum brake friction plate detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177858 CN203163699U (en) | 2013-04-02 | 2013-04-02 | Automobile drum brake friction plate detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203163699U true CN203163699U (en) | 2013-08-28 |
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ID=49024877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320177858 Expired - Fee Related CN203163699U (en) | 2013-04-02 | 2013-04-02 | Automobile drum brake friction plate detection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN203163699U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940344A (en) * | 2014-04-11 | 2014-07-23 | 西安敏文电子科技有限公司 | High-precision remote displacement sensor |
| CN105043319A (en) * | 2015-07-07 | 2015-11-11 | 成都亨通兆业精密机械有限公司 | Workpiece dimension automatic detection device |
| CN107966232A (en) * | 2017-11-24 | 2018-04-27 | 中国特种设备检测研究院 | Hoisting equipment brake performance monitoring method and system based on machine vision |
| CN110192080A (en) * | 2017-01-12 | 2019-08-30 | 克诺尔轨道车辆系统有限公司 | For determining the application of the optical lasers triangulation method of the non-contact operation of the geometrical property of brake lining |
| CN111023985A (en) * | 2019-12-31 | 2020-04-17 | 芜湖哈特机器人产业技术研究院有限公司 | Clutch friction plate measuring device and data processing method thereof |
-
2013
- 2013-04-02 CN CN 201320177858 patent/CN203163699U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940344A (en) * | 2014-04-11 | 2014-07-23 | 西安敏文电子科技有限公司 | High-precision remote displacement sensor |
| CN103940344B (en) * | 2014-04-11 | 2017-08-11 | 西安敏文电子科技有限公司 | A kind of High Precision Long-distance displacement transducer |
| CN105043319A (en) * | 2015-07-07 | 2015-11-11 | 成都亨通兆业精密机械有限公司 | Workpiece dimension automatic detection device |
| CN110192080A (en) * | 2017-01-12 | 2019-08-30 | 克诺尔轨道车辆系统有限公司 | For determining the application of the optical lasers triangulation method of the non-contact operation of the geometrical property of brake lining |
| US11099006B2 (en) | 2017-01-12 | 2021-08-24 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Use of a contactlessly working optical laser triangulation method for determining geometric properties of a brake lining |
| CN110192080B (en) * | 2017-01-12 | 2021-09-14 | 克诺尔轨道车辆系统有限公司 | Application of a contactless optical laser triangulation method for determining the geometric properties of a brake lining |
| CN107966232A (en) * | 2017-11-24 | 2018-04-27 | 中国特种设备检测研究院 | Hoisting equipment brake performance monitoring method and system based on machine vision |
| CN107966232B (en) * | 2017-11-24 | 2020-04-24 | 中国特种设备检测研究院 | Method and system for monitoring performance of hoisting equipment brake based on machine vision |
| CN111023985A (en) * | 2019-12-31 | 2020-04-17 | 芜湖哈特机器人产业技术研究院有限公司 | Clutch friction plate measuring device and data processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20140402 |