CN103745600A - Realizing method for comparing radiofrequency identification and license plate identification - Google Patents
Realizing method for comparing radiofrequency identification and license plate identification Download PDFInfo
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- 238000005516 engineering process Methods 0.000 claims description 6
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Abstract
A realizing method for comparing radiofrequency identification and license plate identification comprises the following conditions that if a reader-writer identifies an electronic label firstly, license plate information in the label is kept for a certain time period t1, in the time period t1, a electronic logo license plate number is constantly compared with all license plate numbers identified by a snapshot camera, if a traffic camera snapshots a vehicle image and identifies the license plate information firstly, the license plate number identified by the traffic camera is kept for a time period t2, and the license plate number is constantly compared with the all electronic logo information obtained by the reader-writer in the time period t2; if the matching is successful before the stop of any of the t1 time period or t2 time period, finishing the comparison, terminating the keeping time t1 and t2 and outputting a comparison result; if the matching is not successful yet before the stop of the any time period t1 or t2, finishing the comparison and outputting other comparison results.
Description
Technical field
The present invention relates to RFID REID and candid camera license plate recognition technology field, particularly in field of traffic control, specifically refer to that a kind of radio-frequency (RF) identification and car plate identify the implementation method of comparing.
Background technology
In recent years, use the motor vehicles of false-trademark false evidence and deck more and more.And they feel reassured and emboldened on account of the support while on the way travelling, make a dash across the red light, the serious traffic offence phenomenon such as hypervelocity is outstanding, becomes the major hidden danger that causes traffic hazard.Part is used after the motor vehicle generation traffic hazard of false-trademark false evidence and deck, and owing to not going up compulsory insurance for traffic accident of motor-drivenvehicle, the legitimate rights and interests such as the masses' that are injured economic compensation can not get due protection, and often escapes after these vehicle accidents, and case is difficult to detection.False-trademark false evidence, deck serious threat public order and encroached on by the proprietary legitimate rights and interests of unlicensed motor vehicles.At present, the information of vehicles of collecting for bayonet socket is normally searched and is compared in existing vehicle data storehouse, carry out deck identification, but owing to there are the data of magnanimity in vehicle data storehouse, the efficiency of carrying out the false deck of data search in database is very low.Application number is that 201310483664.3 patent of invention " a kind of deck vehicle recognition methods based on intelligent transportation " is take license plate number and car plate color as condition, add up each base station and capture the high frequency vehicle occurring in data, whether cannot differentiate in real time during through base station at vehicle is false deck vehicle, ageing poor, and easily there is erroneous judgement, the situation of failing to judge.Application number is that 201110319074.8 patent of invention " recognition methods of a kind of deck vehicle and device " utilizes the mode of vehicle tree to differentiate, need in huge database, search, comparison efficiency is low, and None-identified " clone's vehicle ", does not possess practical value.
Summary of the invention
The invention provides a kind of radio-frequency (RF) identification and car plate and identify the implementation method of comparing, the method is used RFID REID, traffic video camera car plate recognition technology simultaneously, iron car plate and automotive electronics sign (storing vehicle-related information or unique identifier in the internal memory of electronic mark) are installed on vehicle, when vehicle passes through, by radio-frequency identification reader/writer read electric identification information, by video camera, identify the iron number-plate number, and different information is intersected to comparison, it is characterized in that, this comparison implementation method comprises following two kinds of situations:
1) if read write line takes the lead in identifying electronic tag, number-plate number information in license board information in electronic tag internal memory or unique identifier correspondence database is extracted, by resident a period of time t1, within the t1 time period, this electronic mark license plate number all license plate numbers continuous and that candid camera identifies are compared, if in any timing node, the match is successful before the t1 period ends, finish comparison, stop resident period t1 simultaneously, and to database output result of determination; If successfully do not mated when the t1 period ends, finish comparison, to database, export other result of determination;
2) if hand over all-purpose camera to take the lead in capturing to vehicle image and identifying license board information, and read write line not yet reads electronic labeling information, video camera is identified to obtain to the resident a period of time t2 of license plate number, within the t2 period this license plate number constantly and read write line recognize to such an extent that all electronic mark information is compared, if in any timing node, the match is successful before the t2 period ends, finish comparison, stop resident period t2 simultaneously, and to database output result of determination; If successfully do not mated when the t2 period ends, finish comparison, to database, export other result of determination.
Preferably, after described radio-frequency (RF) identification retrieval time t1 and the candid camera identification number-plate number after prolongation t2 match time can be according to vehicle flowrate, detect a series of actual conditions such as position, road junction, peak ebb period, vehicle pass-through speed, the decipherment distance of candid camera, the decipherment distance of radio frequency recognizing electronic label and adjust arbitrarily size; Because radio-frequency (RF) identification distance is conventionally much larger than car plate decipherment distance, therefore t1 is conventionally much larger than t2.
Preferably, described radio-frequency (RF) identification identifies after the memory information or unique identifier of electronic tag for the first time, and after t1 of resident period starts, radio-frequency identification reader/writer and backstage no longer repeat to read and information extraction to this label; Similarly, described car plate identification video camera is identifying after number plate of vehicle for the first time, and after t2 of resident period starts, video camera and backstage also no longer repeat to capture and identification to this license plate number.
Preferably, the further technical scheme that described a kind of radio-frequency (RF) identification and car plate are identified the implementation method of comparing is: the number-plate number that electronic license plate and candid camera identify is after the match is successful, can be set in and in any a period of time, no longer repeatedly mate flow process.
A kind of radio-frequency (RF) identification of the present invention and car plate are identified the implementation method of comparing, realized the real-time automatic comparison of data of the number plate identification of electronic mark and candid camera, solved that current electronics bayonet socket or electronic police system can only be identified the number-plate number and None-identified car plate is true and false, and solved electronic vehicle license plate system photo and deposit the difficult points such as card demand.
Accompanying drawing explanation:
In order to be illustrated more clearly in technical scheme of the present invention, will the accompanying drawing of required use in embodiment or description of the Prior Art be described below.
Fig. 1 is the situation 1 that a kind of radio-frequency (RF) identification of the specific embodiment of the invention 1 and car plate are identified the implementation method of comparing.
Fig. 2 is the situation 2 that a kind of radio-frequency (RF) identification of the specific embodiment of the invention 1 and car plate are identified the implementation method of comparing.
Numeral and represented the theing contents are as follows of letter in figure:
The resident period of time t1 radio-frequency (RF) identification of t10 radio frequency recognizing electronic label
T20 candid camera identification car plate time t2 car plate is identified the resident period
Embodiment:
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated.
Embodiments of the invention 1 and embodiment 2 provide a kind of radio-frequency (RF) identification and car plate to identify the implementation method of comparing, in embodiment 1 and 2, radio-frequency identification reader/writer and electronic tag that selection meets China GB/T29768-2013 standard < < infotech radio-frequency (RF) identification 800-900MHz air interface protocol > >, international ISO18000-6C/EPC C1G2 consensus standard and China's automotive electronics sign (electronic license plate) industry national standard are example.
In embodiment 1, the distance of radio-frequency (RF) identification will be far longer than the distance of candid camera car plate identification conventionally as shown in Figure 1, and therefore radio-frequency (RF) identification is far identified early than car plate.In this case, to identify the specific implementation step of the implementation method of comparing as follows for described a kind of radio-frequency (RF) identification and car plate:
1) vehicle sails into after radio-frequency (RF) identification surveyed area, first read write line extracts the number-plate number information in the license board information in electronic tag internal memory or unique identifier correspondence database, this time period is t10, now starts to enter the resident period t1 of radio-frequency (RF) identification number plate of vehicle information;
2) within the t1 period, when vehicle sails video camera into, capture after identified region, traffic video camera is captured vehicle image, and the time period of identifying the number-plate number be t20, and start to enter the resident period t2 of car plate identification number plate information thus time;
3) in the resident period t1 of described radio-frequency (RF) identification, use the license board information of radio-frequency (RF) identification, constantly go to compare all license board information that car plate identifies; If the t20 period finishes, the t2 period, when also not starting or just having started, the match is successful, finishes comparison, to database output comparison result, as " normal vehicle ";
4) if when t1 finishes, not successful coupling, finishes comparison equally, to the comparison result of database output other types, as " suspect vehicle " or " false deck vehicle " etc.
In embodiment 2, as shown in Figure 2, because electronic tag may be subject to the impact of outside rugged surroundings, or maliciously to be blocked, the distance of radio-frequency (RF) identification may be less than the distance of candid camera car plate identification, and therefore car plate identification can be early than radio-frequency (RF) identification.In this case, to identify the specific implementation step of the implementation method of comparing as follows for described a kind of radio-frequency (RF) identification and car plate:
1) vehicle enters behind car plate recognition detection region, and first traffic video camera is captured vehicle image, and identifies license board information, and this identification car plate time period is t20, now starts to enter the resident period t2 of car plate identification number plate of vehicle;
2) within the t2 period, when vehicle sails into behind radio-frequency (RF) identification region, radio-frequency identification reader/writer reads electronic tag for vehicles information, and according in this information extraction internal memory or correspondence database in number plate of vehicle information, this time period is t10, and starts to enter the resident period t1 of radio-frequency (RF) identification number plate information thus time;
3), in described car plate is identified resident period t2, the license plate number of using this car plate to identify to obtain is constantly compared with the license plate number information that all radio-frequency (RF) identification obtain.If the t10 period finishes, the t1 period, when also not starting or just having started, the match is successful, finishes comparison, to database output comparison result, as " normal vehicle ";
4) if when t1 finishes, not successful coupling, finishes comparison equally, to the comparison result of database output other types, as " suspect vehicle " or " false deck vehicle " etc.
In described embodiment 1 and 2, radio-frequency (RF) identification identifies after the memory information or unique identifier of electronic tag for the first time, and after t1 of resident period starts, radio-frequency identification reader/writer and backstage no longer repeat to read and information extraction to this label; Similarly, described car plate identification video camera is identifying after number plate of vehicle for the first time, and after t2 of resident period starts, video camera and backstage also no longer repeat to capture and identification to this license plate number.
In embodiment 1 and 2, the number-plate number that electronic license plate and candid camera identify after the match is successful, is set in 1 minute and no longer repeatedly mates flow process, can greatly improve like this coupling recognition efficiency, simultaneously also mitigation system work load.
In above description, a lot of details have been set forth so that fully understand the present invention.But above description is only preferred embodiment of the present invention, the present invention can implement to be much different from alternate manner described here, and therefore the present invention is not subject to the restriction of disclosed concrete enforcement above.Any skilled personnel are not departing from technical solution of the present invention scope situation simultaneously, all can utilize method and the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Every content that does not depart from technical solution of the present invention,, all still belongs in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present invention.
Claims (8)
1. a radio-frequency (RF) identification and car plate are identified the implementation method of comparing, the method is used RFID REID, traffic video camera car plate recognition technology simultaneously, iron car plate and automotive electronics sign (storing vehicle-related information or unique identifier in the internal memory of electronic mark) are installed on vehicle, when vehicle passes through, by radio-frequency identification reader/writer read electric identification information, by video camera, identify the iron number-plate number, and different information is intersected to comparison, it is characterized in that, this comparison implementation method comprises following two kinds of situations:
1) if read write line takes the lead in identifying electronic tag, number-plate number information in license board information in electronic tag internal memory or unique identifier correspondence database is extracted, by resident a period of time t1, within the t1 time period, this electronic mark license plate number all license plate numbers continuous and that candid camera identifies are compared, if in any timing node, the match is successful before the t1 period ends, finish comparison, stop resident period t1 simultaneously, and to database output comparison result; If successfully do not mated when the t1 period ends, finish comparison, to database, export other comparison results;
2) if hand over all-purpose camera to take the lead in capturing to vehicle image and identifying license board information, and read write line not yet reads electronic labeling information, video camera is identified to obtain to the resident a period of time t2 of license plate number, within the t2 period this license plate number constantly and read write line recognize to such an extent that all electronic mark information is compared, if in any timing node, the match is successful before the t2 period ends, finish comparison, stop resident period t2 simultaneously, and to database output comparison result; If successfully do not mated when the t2 period ends, finish comparison, to database, export other comparison results.
2. a kind of radio-frequency (RF) identification according to claim 1 and car plate are identified the implementation method of comparing, it is characterized in that, resident period t2 after resident period t1 after described radio-frequency (RF) identification and the identification of described car plate exists in this car plate Compare System simultaneously, to meet the possibility of all traffic environment.
3. a kind of radio-frequency (RF) identification according to claim 1 and car plate are identified the implementation method of comparing, it is characterized in that, the resident period t2 of prolongation after the resident period t1 after described radio-frequency (RF) identification and the candid camera identification number-plate number can adjust arbitrarily size according to a series of actual conditions such as vehicle flowrate, detection position, road junction, peak ebb period, vehicle pass-through speed, the decipherment distance of candid camera, the decipherment distances of radio frequency recognizing electronic label; Because radio-frequency (RF) identification distance is conventionally much larger than car plate decipherment distance, therefore t1 is conventionally much larger than t2.
4. a kind of radio-frequency (RF) identification according to claim 1 and car plate are identified the implementation method of comparing, it is characterized in that, radio-frequency (RF) identification identifies after the memory information or unique identifier of electronic tag for the first time, be that after resident period t1 starts, radio-frequency identification reader/writer and backstage no longer repeat to read and information extraction to this label; Similarly, described car plate identification video camera is identifying after number plate of vehicle for the first time, and after t2 of resident period starts, video camera and backstage also no longer repeat to capture and identification to this license plate number.
5. a kind of radio-frequency (RF) identification according to claim 1 and car plate are identified the implementation method of comparing, it is characterized in that, the number-plate number identifying with candid camera that radio-frequency (RF) identification goes out is after the match is successful, can be set in and in any a period of time, no longer repeatedly mate flow process.
6. a kind of radio-frequency (RF) identification according to claim 1 and car plate are identified the implementation method of comparing, it is characterized in that, the electronic mark of described REID and radio-frequency identification reader/writer meet following standard and are all included: REID the 7th part that ISO18000-7 standard < < infotech is managed for single product: 433MHz air interface communication parameter > >, REID the 4th part that ISO18000-4 standard < < infotech is managed for single product: 2.45GHz air interface communication parameter > >, GB/T29768-2013 standard < < infotech radio-frequency (RF) identification 800-900MHz air interface protocol > >, international ISO18000-6C/EPC C1G2 consensus standard and China's automotive electronics sign (electronic license plate) industry national standard.
7. a kind of radio-frequency (RF) identification according to claim 1 and car plate are identified the implementation method of comparing, it is characterized in that, described method is applied to field of traffic control, comprise: highway bayonet socket, the electronics bayonet socket of highway Path Recognition, urban transportation, electronic police, monitoring, the water craft fare payment system etc. of not suspending.
8. a kind of radio-frequency (RF) identification according to claim 1 and car plate are identified the implementation method of comparing, it is characterized in that, described candid camera comprises that Haikang prestige looks all kinds of the friendship all-purpose cameras such as the high definition/SD, network/digital-to-analog, rifle type/ball-type of domestic and international all producers such as science and technology, world great achievement depending on, large China Tech skill, space.
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| CN103927881A (en) * | 2014-05-05 | 2014-07-16 | 陈昊 | Radio frequency and video double-base recognition and comparison integrated machine |
| CN103996295A (en) * | 2014-05-27 | 2014-08-20 | 陈昊 | Implementation method for simultaneously storing electronic license plate and iron sheet license plate as vehicle information source identifications |
| CN104077570A (en) * | 2014-06-25 | 2014-10-01 | 北京计算机技术及应用研究所 | Method and system for fusing radio frequency identification and vehicle license plate recognition |
| CN104766479A (en) * | 2015-01-27 | 2015-07-08 | 公安部交通管理科学研究所 | Automobile identity recognition method and device based on ultrahigh frequency radio frequency and video image dual-recognition matching |
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| CN103996295A (en) * | 2014-05-27 | 2014-08-20 | 陈昊 | Implementation method for simultaneously storing electronic license plate and iron sheet license plate as vehicle information source identifications |
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| CN109389117A (en) * | 2018-09-28 | 2019-02-26 | 天津中兴智联科技有限公司 | A kind of electronic license plate ambiguity implementation method |
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| CN113205069B (en) * | 2021-05-27 | 2023-05-30 | 上海高德威智能交通系统有限公司 | False license plate detection method and device and computer storage medium |
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