CN202853581U - Device for extracting contour of moving vehicle so as to recognize vehicle type - Google Patents
Device for extracting contour of moving vehicle so as to recognize vehicle type Download PDFInfo
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- CN202853581U CN202853581U CN 201220577436 CN201220577436U CN202853581U CN 202853581 U CN202853581 U CN 202853581U CN 201220577436 CN201220577436 CN 201220577436 CN 201220577436 U CN201220577436 U CN 201220577436U CN 202853581 U CN202853581 U CN 202853581U
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Abstract
The utility model discloses a device for extracting the contour of a moving vehicle so as to recognize the vehicle type. The sensing unit of the device is composed of opposite-type photoelectric sensor groups which are installed on two sides of a lane horizontally and vertically. The power supply and signal outputs are connected with the input ends of a driving circuit and a signal preprocessing circuit in an interface control circuit, wherein the driving circuit and the signal preprocessing circuit are controlled by a MCU. The output of the MCU in the interface control circuit is connected to a computer, so that the acquired information is compared with known vehicle type information stored in the computer, and then the vehicle type is recognized and judged. According to the utility model, no radar speed measurement is needed, the displacement of the vehicle can be acquired directly, and the horizontal position uncertainty caused by speed measurement can be eliminated. Moreover, the infrared light which is free of radiation damage is adopted, so erroneous judgement caused by diffraction can be overcome, and the accuracy can meet the needs of the vehicle type recognition. By adopting the device of the utility model, the vehicle type recognition has the advantage of low cost and is simple and reliable, and the device is applicable in a toll station and an ETC to recognize moving vehicles, and the device can also be used to recognize the moving of a human body in monitoring, the shape and contour of a material in a conveyor belt, etc.
Description
Technical field
The utility model relates to intelligent transportation field, especially relates to a kind of moving vehicle profile that extracts with the device of identification vehicle.
Background technology
Recognition object, one of the simplest method is to observe profile.The machine recognition of unartificial mode can realize with projection with to methods such as profile range findings.
Projection imaging is that the side at object arranges directional light, and opposite side arranges photoelectric receiving device, forms correlation, and whether contour of object information is obtained in shading with object.By extracting all or part of profile identification of car body vehicle, just this basic skills that generally adopts at present.
Adopt the projecting method of large tracts of land parallel beam and large tracts of land photoelectric receiving device forming array, volume is large, and cost is high, lacks practicality.Therefore, practical projecting method is taked the mode that scans mostly, makes car body by the high equipment of the survey of fixing, and obtains a series of height value.
Obviously, this projecting method need to solve two problems.
The first, when vehicle passed through to survey high equipment, the height value of acquisition was the ordinate of composition, it must be corresponding with horizontal ordinate exactly.Horizontal ordinate is that vehicle is by surveying the displacement of high equipment.Can not obtain exactly horizontal ordinate, the contour images of vehicle just may produce horizontal compression or elongation, causes distortion.
It two is, adopts the correlation mode to survey high, utilizes up and down spaced apart visible light and infrared light beam, and diffraction of light may affect resolving accuracy, even can not work.Use laser beam, then because very high to installation requirement, also impracticable.Adopt high-energy ray, although accurately, make equipment complicated, cost is expensive, and because of radiation hazard, driver's scruple.
This type of vehicle identification equipment (200610113716.8) of Tsing-Hua University's development is typical projection pattern.It is by radar Doppler vehicle to be tested the speed when solving above-mentioned first problem, in conjunction with known sweep time, indirectly obtains the location horizontal ordinate.Radar Doppler is at testee and is decelerated to when stopping, precise decreasing, even lost efficacy.When vehicle entered charge station, this unfavorable factor was particularly outstanding.It when solving Second Problem, employing be high-energy ray, although considered multiple strategy, reduce the driver and eat dosage, still do not select harmless visible light beam or infrared light beam.
Summary of the invention
The purpose of this utility model is that design provides a kind of moving vehicle profile that extracts with the device of identification vehicle, and it can address the above problem, and directly extracts the displacement signal of vehicle, cooperates input computing machine, the accurate image of acquisition vehicle ' s contour with the high equipment of survey.It adopts infrared ray or visible light just can obtain the altimetry precision that needs.
The purpose of this utility model is achieved through the following technical solutions: a kind of moving vehicle profile that extracts is with the device of identification vehicle, and it is by the output connecting interface control module of sensing unit, and the output of interface control unit connects computing machine again and forms; Described sensing unit is by horizontally disposed correlation photoelectric sensor group and vertically disposed correlation photoelectric sensor group of arranging according to differing heights according to certain arranged with interval consists of in the both sides, track, its all correlation photoelectric sensors for the output terminal by the driving circuit of MCU control in the electrical connection interface control module; The input end by the signal pre-processing circuit of MCU control in the signal of its all the correlation photoelectric sensors output connecting interface control module; The output of MCU in the interface control unit is connected to computing machine.Described horizontally disposed correlation photoelectric sensor group is installed on two horizontal stands; Described vertically disposed correlation photoelectric sensor group is installed on two vertical support frames; Two vertical support frames are corresponding every the track; Two horizontal stands are also corresponding every the track; Vertical support frame is installed in horizontal stand and follows the top of sailing direction.
The power supply of every pair of photoelectricity emission sensor on vertical support frame or the horizontal stand, by the driving circuit control of MCU control, every pair of photoelectricity emission sensor output signal to signal pre-processing circuit, can overcome the interference that diffraction of light brings like this.The sort circuit structure obtained the identical successful Application of purposes in one metre line electronic reminding device (03275697.6).
When vehicle sails the above-mentioned measured zone that is made of horizontal stand and vertical support frame into, first horizontal location light beam on the occlusion horizontal stand, thereby the radical and the position that start immediately the photoelectricity emission sensor taking-up occlusion light beam on the vertical support frame record height value, record first group of ordinate value and abscissa value.After this, along with moving ahead of vehicle, whenever new horizontal location light beam is blocked, survey high equipment and will measure once height.Like this, one group of group ordinate value and abscissa value input to computing machine, until vehicle crosses the test section.
Computing machine is determined the profile information of vehicle according to the ordinate value and the abscissa value that obtain, with known vehicle information comparison, makes vehicle and judges.
Beneficial effect
Adopt said structure and working method thereof, can obtain exactly to extract the necessary whole ordinates of profile and the horizontal ordinate of tested moving vehicle.Horizontal ordinate can directly be obtained, and need not to vehicle speed measuring the labile factor that having eliminated tests the speed brings; Adopt visible light or infrared ray, do not have the harm of radiation, and overcome the diffraction interference, can satisfy the needs of vehicle identification, make low cost product, simple and reliable.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of sensing unit described in the utility model.Fig. 2 is electrical block diagram.
In Fig. 1, (1,2) are for being vertically set on the correlation photoelectric sensor group of both sides, track; (3,4) are for being horizontally set on the correlation photoelectric sensor group of both sides, track.(5) be to one of irradiating light beam.
Embodiment
Embodiment as shown in Figure 1 and Figure 2.
In Fig. 1, the correlation photoelectric sensor that is vertically set in the correlation photoelectric sensor group (1,2) of both sides, track is installed in two vertical support frames beam separation 5cm, the high 420cm of support; The correlation photoelectric sensor that is horizontally set on the correlation photoelectric sensor group (3,4) of both sides, track is installed in two horizontal stands, beam separation 20cm, the long 600cm of support, liftoff 50cm; Sensing unit desired signal cable and service cable enter ground along vertical support frame inside, from provided underground.In Fig. 2, all photoelectric sensors adopt infrared light, and its power supply and signal output connect respectively driving circuit and signal pre-processing circuit by MCU control, and the output of MCU is connected with computing machine.
Claims (2)
1. one kind is extracted the moving vehicle profile with the device of identification vehicle, it is by the output connecting interface control module of sensing unit, the output of interface control unit connects computing machine again and forms, it is characterized in that: described sensing unit is by horizontally disposed correlation photoelectric sensor group and vertically disposed correlation photoelectric sensor group of arranging according to differing heights according to certain arranged with interval consists of in the both sides, track, its all correlation photoelectric sensors for the output terminal by the driving circuit of MCU control in the electrical connection interface control module; The input end by the signal pre-processing circuit of MCU control in the signal of its all the correlation photoelectric sensors output connecting interface control module; The output of MCU in the interface control unit is connected to computing machine.
2. a kind of moving vehicle profile that extracts according to claim 1 is with the device of identification vehicle, and it is characterized in that: described horizontally disposed correlation photoelectric sensor group is installed on two horizontal stands; Described vertically disposed correlation photoelectric sensor group is installed on two vertical support frames; Two vertical support frames are corresponding every the track; Two horizontal stands are also corresponding every the track; Vertical support frame is installed in horizontal stand and follows the top of sailing direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577436 CN202853581U (en) | 2012-11-05 | 2012-11-05 | Device for extracting contour of moving vehicle so as to recognize vehicle type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577436 CN202853581U (en) | 2012-11-05 | 2012-11-05 | Device for extracting contour of moving vehicle so as to recognize vehicle type |
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| Publication Number | Publication Date |
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| CN202853581U true CN202853581U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220577436 Expired - Fee Related CN202853581U (en) | 2012-11-05 | 2012-11-05 | Device for extracting contour of moving vehicle so as to recognize vehicle type |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599508A (en) * | 2014-12-22 | 2015-05-06 | 贵州中南交通科技有限公司 | Vehicle model identifier |
| CN105333835A (en) * | 2014-08-07 | 2016-02-17 | 上海通用汽车有限公司 | Size measuring device and method for finished vehicle |
| CN105333836A (en) * | 2014-08-15 | 2016-02-17 | 北京鑫东华腾体育器械有限公司 | Human body BWH measuring instrument and method |
| WO2016107475A1 (en) * | 2014-12-30 | 2016-07-07 | 清华大学 | Vehicle identification method and system |
| CN107677235A (en) * | 2017-09-22 | 2018-02-09 | 安徽江淮汽车集团股份有限公司 | A kind of body style identifying system and method |
| CN109892731A (en) * | 2019-03-12 | 2019-06-18 | 上海人赢网络科技有限公司 | A kind of general size on-line measurement device |
-
2012
- 2012-11-05 CN CN 201220577436 patent/CN202853581U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333835A (en) * | 2014-08-07 | 2016-02-17 | 上海通用汽车有限公司 | Size measuring device and method for finished vehicle |
| CN105333836A (en) * | 2014-08-15 | 2016-02-17 | 北京鑫东华腾体育器械有限公司 | Human body BWH measuring instrument and method |
| CN105333836B (en) * | 2014-08-15 | 2018-12-14 | 北京鑫东华腾体育器械有限公司 | The measurement method of human body measurements of the chest, waist and hips measuring instrument |
| CN104599508A (en) * | 2014-12-22 | 2015-05-06 | 贵州中南交通科技有限公司 | Vehicle model identifier |
| WO2016107475A1 (en) * | 2014-12-30 | 2016-07-07 | 清华大学 | Vehicle identification method and system |
| US10607483B2 (en) | 2014-12-30 | 2020-03-31 | Tsinghua University | Vehicle identification methods and systems |
| CN107677235A (en) * | 2017-09-22 | 2018-02-09 | 安徽江淮汽车集团股份有限公司 | A kind of body style identifying system and method |
| CN107677235B (en) * | 2017-09-22 | 2020-10-09 | 安徽江淮汽车集团股份有限公司 | Vehicle body type identification system and method |
| CN109892731A (en) * | 2019-03-12 | 2019-06-18 | 上海人赢网络科技有限公司 | A kind of general size on-line measurement device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Song Huaichun Document name: Notification to Pay the Fees |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20151105 |
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| EXPY | Termination of patent right or utility model |