CN2128401Y - Multifunctional infrared reflection type vehicle tester - Google Patents
Multifunctional infrared reflection type vehicle tester Download PDFInfo
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- CN2128401Y CN2128401Y CN 92214682 CN92214682U CN2128401Y CN 2128401 Y CN2128401 Y CN 2128401Y CN 92214682 CN92214682 CN 92214682 CN 92214682 U CN92214682 U CN 92214682U CN 2128401 Y CN2128401 Y CN 2128401Y
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Abstract
The utility model relates to a multifunctional infrared reflection type vehicle tester. The utility model is a road traffic testing device which goes on with recognizing and statistic for the flow capacity, types and vehicle speed of a motor vehicle. The utility model uses the modulation infrared beam generated by infrared light pipe array as an area sensor. Vehicle signals are detected. After the vehicle signals are processed by a testing assembly, the vehicle signals are sent to a microcomputer. Testing results are shown or printed. The testing signals can be sent to a crossing machine within 350 meters. The testing accuracy is larger than 97%. An infrared combined type probe of the utility model can be suspended on the upper part of a road or erected at the edge of the road. The infrared combined type probe of the utility model can be also loaded on the vehicle or held in hands. The utility model is suitable for using when the utility model is movably monitored. The utility model can be used for testing for non-motor vehicles after the utility model is regulated properly.
Description
The utility model is that a kind of road traffic that is used for detects, to the motor vehicle flow statistics, and type identification, the special detection device of speed of a motor vehicle monitoring.
Described a kind of employing in the Chinese patent (90110210.5) and under road, buried toroid winding underground, utilize vehicle by the time cutting magnetic line produce the wagon detector that signal comes the machines motor-car.Because toroid winding is embedded under the road, vehicle is the roll extrusion road surface all the year round, to tangential force of coil effect, so the coil life-span generally do not grow (about 1～2 year).Thereby to often excavate more emat coil of road surface, cause troubles such as construction suspends traffic.
A kind of highway communication flow monitoring device of establishing some to the Photoelectric infrared switch sensor in the road has on both sides of the road been described in the Chinese patent (87205945).The signal of this device connects, emitting head need be installed on respectively on both sides of the road, and the installation site requires accurately, signal wire also need pass road, particularly for the vehicle detection of multilane, to dissimilar vehicle detection, a lot of probes need be set, and take multiple mounting means, thereby cause many troubles and limitation for actual the use.
In addition, this device is to utilize the object shading to obtain the transmission-type pick-up unit of signal, might produce the miscount that produces owing to the bicycle shading, influences accuracy of detection.
The purpose of this utility model is exactly in order to overcome the shortcoming of prior art, to propose a kind of accuracy of detection height, and it is very convenient to install and use, and is applicable to the wagon detector in various tracks.
The purpose of this utility model also is to design a kind of reliability height, long service life, and the energy long-term work is in open-air wagon detector.
The purpose of this utility model is achieved through the following technical solutions.
Multi-functional infrared reflection wagon detector, with infrared sensor detection vehicle signal, assembly is delivered to microcomputer after with signal Processing and is carried out data processing after testing, makes vehicle, the speed of a motor vehicle, vehicle identification and traffic statistics.Utilize vehicle to infrared reflection of light, the principle of the optical signal detecting vehicle by receiving this reflection, the infrared sensor of employing is to comprise to be located at unidirectional infrared emission head and infrared receiving tube.
Infrared sensor of the present utility model is the combined probe that infrared emission head and infrared receiving tube is assembled into one, and it is made up of the base plate that infrared emission head and infrared receiving tube are housed, the bonnet and the snoot that are connected on the base plate.This combined probe only need be installed in an orientation of road, thereby is convenient to install and use very much.
Infrared emission head of the present utility model is the infrared sensor with certain light area, and it forms array by 10～20 infrared light pipes.Its advantage is: 1. the infrared beam that infrared light pipe array produces has certain area and energy, has improved detection efficiency; 2. when having indivedual light pipes to damage in the array, infrared emission head still can operate as normal, makes working stability reliable; 3. if voltage produces fluctuation, the infrared energy that infrared emission head produces can not alter a great deal yet, thereby not high to power requirement.
Infrared sensor of the present utility model is owing to adopt combined probe, consider that infrared receiving tube is highly sensitive receiving device, very easily be subjected to from infrared light pipe and extraneous infrared light and electromagnetic interference (EMI), influence its detection accuracy, therefore combined probe has been adopted shielding measure, between infrared transmitting tube and infrared receiving tube, be provided with the double shield body and form the double shield chamber.
Below in conjunction with drawings and Examples the utility model is described in detail.
Figure one is the pulse-modulator circuit block diagram of infrared emission head.
Figure two is detection components circuit block diagrams.
Figure three is combined probe structural drawing.
Figure four is fixed wagon detector mounting arrangements synoptic diagram.
Figure five is mobile vehicle detecting device synoptic diagram.
Infrared emission head of the present utility model sends through pulse modulated infrared beam, and its frequency is 30～40KHz.The principle of work of pulse-modulator is shown in figure one.Process transformation, rectification, filtering, voltage stabilizing obtain the power supply (1) of the adjustable direct current of high-quality 10～16V, give multivibrator (2), carrier generator (3), driving circuit (4) power supply.Multivibrator (2) produces the modulating frequency of 3～10KHz, and its output duty cycle is 1:5, and this row pulse is used for controlling carrier generator (3), and the setting output frequency is 30～40KHz.The signal controlling infrared tube driving circuit (4) that carrier generator (3) produces produces a series of heavy current pulse strings and makes infraluminescence pipe (5) work.
The infrared light that infrared emission head sends is reflected by vehicle, by detection components signal is handled, and its principle of work is shown in figure two.Infrared receiving tube (6) is converted to electric signal with light signal, sending into prime amplifier (7) amplifies signal, this signal being sent into code translator (8) discerns signal and interference again, then through chronotron (9), trigger (10), generation enters programmable counter (11) again with the corresponding digital signal of vehicle, then by display (12) display result.The signal of trigger (10) can deliver to also that microcomputer (13) is added up, comparison, identification etc.And get the result by printer (14).Power supply of detection components (1) and pulse-modulator common source.
Combined probe (24) is by the base plate (15) that infraluminescence pipe (5) and infrared receiving tube (6) are housed, and forms with bottom plate connecting bonnet (16) and snoot (17) together.Base plate (15) can be done circular or square.Bonnet (16) adopts the spherical crown shape, also can adopt the flat-top shape.Bonnet (16) and the available Bolt Connection of base plate (15) have between them that packing washer (18) is beneficial to prevent dust, protection against the tide.Can use in the open for a long time.Infrared receiving tube (6) generally is located at the center of base plate (15).Infrared Lens (19) and infrared window (20) can be loaded onto in the front of infrared receiving tube (6), rise to focus on and dustproof effect.
Be provided with Jiong shape shield (21) and flat screen (22) in the cavity between base plate (15) and bonnet (16).Shield (21) is fixed on the base plate (15), with shielding infraluminescence pipe (5); Shield (22) is fixed on bonnet (16) and goes up with shielding infrared receiving tube (6).
The problem of generating heat when solving probe work prolongs life-span of infrared light pipe, can establish heating radiator (23) on bonnet (16), can adopt at bonnet (16) and go up the mode of slotting, and also heat radiator can be contained on the bonnet (16).
The utility model can make fixed with combined probe (24), be suspended on and be positioned at 3～10 meters eminences in top, track on the fixed mount (25) vehicle (27) detection (shown in figure four), electric element box (26) is contained under the fixed mount (25), easy access.Combined probe is liftoff 5 meters high the time, and effectively area of detection is 0.5M
2This form is specially adapted to the multilane situation.Except adopting hang, combined probe (24) fixedly can be erected at road one side.
The utility model can also make portable inspection vehicle (28) (shown in figure five), being about to parts such as infrared sensor, pulse-modulator and detection components is located on the vehicle, or each parts is installed in makes hand-held detectors in the cabinet, use when being beneficial to very much traffic department's flow detection.
The signal that detects is made type of vehicle through microcomputer and is differentiated that the speed of a motor vehicle and traffic statistics show and the timed print testing result with display.And detection signal can be delivered to junction machine, in 350 meters scopes, can transmit signal by high-quality.The utility model could produce reflected signal to the object with certain area, thereby bicycle, pedestrian etc. all can not make it to produce miscount, has improved accuracy of detection, to the accuracy of detection of all kinds of motor vehicles greater than 97%.
As the infrared light receiving area is done suitably to adjust, the utility model also can detect bicycle (as bicycle).
Claims (6)
1, multi-functional infrared reflection wagon detector, with infrared sensor detection vehicle signal, assembly is delivered to microcomputer after with signal Processing and is carried out data processing after testing, make vehicle, the speed of a motor vehicle, vehicle identification and traffic statistics, it is characterized in that infrared sensor is to comprise the infrared receiving tube that is located at unidirectional infrared emission head and receives the light signal of vehicle reflection.
2, wagon detector as claimed in claim 1, it is characterized in that infrared sensor is the combined probe that infrared emission head pass and infrared receiving tube are assembled into one, by the base plate that infrared emission head and infrared receiving tube are housed, the bonnet and the snoot that are connected on the base plate are formed.
3, as claim 1,2 wagon detector is characterized in that infrared emission head forms array by 10～20 infrared light pipes.
4, wagon detector as claimed in claim 2 is characterized in that combined probe is provided with the double shield body between infrared light pipe and infrared receiving tube.
5, wagon detector as claimed in claim 2 is characterized in that combined probe is suspended on the road top or stands in road one side.
6, as claim 1,2 wagon detector is characterized in that infrared sensor, pulse-modulator and detection components be located at and makes portable inspection vehicle on the vehicle, or each parts is contained in makes hand-held detectors in the cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214682 CN2128401Y (en) | 1992-05-30 | 1992-05-30 | Multifunctional infrared reflection type vehicle tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92214682 CN2128401Y (en) | 1992-05-30 | 1992-05-30 | Multifunctional infrared reflection type vehicle tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2128401Y true CN2128401Y (en) | 1993-03-17 |
Family
ID=33763809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92214682 Expired - Fee Related CN2128401Y (en) | 1992-05-30 | 1992-05-30 | Multifunctional infrared reflection type vehicle tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2128401Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351648C (en) * | 2005-03-21 | 2007-11-28 | 武汉大学 | Infrared laser device for montoring vehicle meeting at rampway |
| CN101859491B (en) * | 2009-04-10 | 2012-02-22 | 张高军 | Method for obtaining longitudinal profile pattern of mobile vehicle and device thereof |
| CN102509150A (en) * | 2011-11-03 | 2012-06-20 | 广州市图之灵计算机技术有限公司 | Photoelectric integral wheel axle counter and counting method thereof |
| CN102508449A (en) * | 2011-11-03 | 2012-06-20 | 广州市图之灵计算机技术有限公司 | Integrated electro-optical separator for vehicles and separation method of integrated electro-optical separator |
| CN102694537A (en) * | 2012-06-20 | 2012-09-26 | 瑞电士（常熟）传感器有限公司 | Structure for preventing light interference in photoelectric switch |
| CN104517322A (en) * | 2014-12-24 | 2015-04-15 | 长安大学 | Infrared-based one-sided vehicle separation method and infrared-based one-sided vehicle separation device |
| CN109448398A (en) * | 2018-11-09 | 2019-03-08 | 四川大学 | Array laser vehicle flow detection system |
| CN112729505A (en) * | 2020-12-21 | 2021-04-30 | 中物智建(武汉)科技有限公司 | Unattended intelligent wagon balance system |
-
1992
- 1992-05-30 CN CN 92214682 patent/CN2128401Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351648C (en) * | 2005-03-21 | 2007-11-28 | 武汉大学 | Infrared laser device for montoring vehicle meeting at rampway |
| CN101859491B (en) * | 2009-04-10 | 2012-02-22 | 张高军 | Method for obtaining longitudinal profile pattern of mobile vehicle and device thereof |
| CN102509150A (en) * | 2011-11-03 | 2012-06-20 | 广州市图之灵计算机技术有限公司 | Photoelectric integral wheel axle counter and counting method thereof |
| CN102508449A (en) * | 2011-11-03 | 2012-06-20 | 广州市图之灵计算机技术有限公司 | Integrated electro-optical separator for vehicles and separation method of integrated electro-optical separator |
| CN102694537A (en) * | 2012-06-20 | 2012-09-26 | 瑞电士（常熟）传感器有限公司 | Structure for preventing light interference in photoelectric switch |
| CN104517322A (en) * | 2014-12-24 | 2015-04-15 | 长安大学 | Infrared-based one-sided vehicle separation method and infrared-based one-sided vehicle separation device |
| CN109448398A (en) * | 2018-11-09 | 2019-03-08 | 四川大学 | Array laser vehicle flow detection system |
| CN112729505A (en) * | 2020-12-21 | 2021-04-30 | 中物智建(武汉)科技有限公司 | Unattended intelligent wagon balance system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |