WO2016107302A1

WO2016107302A1 - Method and system for inspecting moving vehicles

Info

Publication number: WO2016107302A1
Application number: PCT/CN2015/094474
Authority: WO
Inventors: 贾安州; 李成; 蒲强; 徐海平; 李文成; 高兴
Original assignee: 北京握奇智能科技有限公司
Priority date: 2014-12-30
Filing date: 2015-11-12
Publication date: 2016-07-07
Also published as: CN105809970A

Abstract

A method and system for inspecting moving vehicles, for implementing licence plate identification and vehicle information collection on moving cars on the road, and implementing match testing of the licence plate information and the vehicle information, thereby executing traffic inspection work. The method comprises: by means of an ANPR camera, identifying a first licence plate number of a vehicle, storing same in a first information pool, and storing a first time period TP in the first information pool (S1); by means of a DSRC apparatus, acquiring a second licence plate number recorded in vehicle information in an OBU of the vehicle, storing same in a second information pool, and storing a second time period TM in the second information pool (S2); implementing match testing of the first licence plate and the second licence plate, and if the match is successful, then implementing tagging (S3); and implementing an inspection operation on the vehicle information tagged as being successfully matched (S4).

Description

Method and system for auditing traveling vehicles

Technical field

The invention belongs to the technical field of traffic inspection, and particularly relates to a method and system for inspecting a traveling vehicle.

Background technique

In the road congestion charging system, the vehicle is required to install the onboard unit OBU, and it is not allowed to dismantle or destroy it after installation. The OBU can calculate the road congestion cost and autonomous deduction or cooperate with other equipment in the system to complete the cost calculation and deduction function; OBU can also conduct self-inspection according to the inspection rules. Therefore, the inspection system for OBU has also become an important part of the road congestion charging system. The auditing system is used to check whether the vehicle is installed with OBU, monitor whether the OBU has been illegally dismantled or damaged, collect OBU self-inspection illegal record information, and obtain vehicle enforcement evidence, such as video, image, OBU log, and audit record. In the existing inspection system, the inspection of the traveling vehicles on the road mainly through the mobile vehicle inspection system is a necessary link in the inspection work. How to accurately determine whether the vehicle is illegal and form law enforcement evidence is the most important in the inspection system. Technical problem.

The Chinese patent application with the application number 201410039721.3 application date 2014.01.28 discloses a method for realizing the radio frequency identification and license plate recognition comparison, which includes the following two cases: if the reader/writer first recognizes the electronic tag, the license plate information in the tag is resident. For a period of time t1, during the time period t1, the electronic identification license plate number is continuously compared with all the license plate numbers recognized by the capture camera. If the traffic camera first captures the vehicle image and recognizes the license plate information, the camera is recognized by the camera. The number resides for a period of time t2. During the time period t2, the license plate number is continuously compared with all the electronic identification information recognized by the reader/writer: if the matching is successful before the end of any time period t1 or t2, the comparison is ended. The dwell time t1 and t2 are terminated, and the comparison result is output: if the matching is not successful at any time period of t1 or t2, the comparison is ended, and other comparison results are output. The problems with this technical solution are:

The program can only check whether the license plate is normal, that is, it can only check whether the vehicle has a deck illegality;

The solution cannot avoid a large amount of repeated license plate information data by requiring the electronic tag to be silent, and can only use the filtering means or the RFID reader and the background to stop the reading process of the tag that has acquired the license plate information, and increase the reading process. The complexity of background processing;

The electronic label of the program does not have the ability to charge for congestion;

The electronic label of the program does not have self-inspection capabilities;

The program does not have the ability to acquire and retain evidence of law enforcement video images;

The radio frequency identification distance in the scheme far exceeds the ANPR identification distance, which leads to the premature comparison of the radio frequency identification of the license plate in the background, and there is waste of running resources in the background;

The program does not have a secondary audit capability.

Summary of the invention

In view of the deficiencies in the prior art, an object of the present invention is to provide a method and system for inspecting a traveling vehicle, performing license plate recognition on the dynamic vehicle traveling on the road and collecting vehicle information in the vehicle OBU, and collecting license plate information and The vehicle information is matched and detected, and the inspection work of the vehicle is realized.

In order to achieve the above object, the technical solution adopted by the present invention is: a method for inspecting a traveling vehicle, comprising the following steps:

(1) identifying the first license plate number of the vehicle by the ANPR camera, and storing it in the first information pool, and storing the time TP in the first information pool;

(2) reading the second license plate number recorded in the vehicle information in the vehicle OBU by the DSRC device, and storing it in the second information pool, and storing the TM in the second information pool for a period of time;

(3) performing matching detection on the first license plate number and the second license plate number, and if the matching is successful, marking is performed;

(4) Perform an audit operation on the vehicle information marked as successful.

Further, the matching detection in the step (3) includes:

First matching: matching the first license plate number in the second information pool, that is, scanning the second license plate in the vehicle information acquired in the range of time TP in the second information pool Whether the number can correspond to the first license plate number; if the match is successful, the first license plate number and the vehicle information including the second license plate number are marked, and the matching includes the second license plate The vehicle information of the number is transferred to the auditing operation; if the matching is unsuccessful and the storage length of the first license plate number exceeds TP, a suspected no OBU record is generated, and the a license plate number is deleted from the first information pool;

a second matching: matching the second license plate number in the first information pool, that is, scanning in the first information pool whether the first license plate number acquired in the range of time TM can be the same as the second The license plate number corresponds; if the matching is successful, the first license plate number and the vehicle information including the second license plate number are marked, and the successfully matched vehicle information including the second license plate number is transferred to the inspection Operating; if the matching is unsuccessful and the storage time of the vehicle information including the second license plate number exceeds TM, generating a suspected licenseless number record and the said vehicle information including the second license plate number is The second information pool is deleted.

Further, the TP and TM time ranges from 5 to 10 minutes.

Further, the checking operation in the step (4) refers to checking whether the vehicle information marked as a matching success contains an illegal record, and if the audit has no illegal record, generating a legal inspection record; if there is an illegal record, generating a Expiring the audit record; finally deleting the first license plate number marked as successful in the first information pool, and deleting the second license plate number marked as successful in the second information pool The vehicle information.

Further, a panoramic camera is used to record a moving image of the audited vehicle from the start to the end of the audit.

Further, the suspected no OBU record and the suspected no license plate number record are checked by the background service system data, and according to the surveillance video of the panoramic camera, a second audit is performed to determine whether there is indeed no OBU or no license plate number. Happening.

Further, in the step (1), after the first license plate number is acquired, before being stored in the first information pool, the method further includes the following steps:

1) The first license plate number is first stored in the third information pool, and the third information pool is used for recording and updating all the first license plate numbers obtained within a predetermined time range from the current time; the specified time is 5 minutes;

2) Scanning in the first information pool to confirm whether the first license plate number recorded in the third information pool is Already exist, if present, the first license plate number is no longer added to the first information pool from the third information pool, and if not, the first license plate number is stored from the third information pool to the first Information pool.

Further, the OBU in which the vehicle information is acquired is required to remain in a silent state for a predetermined period of time, and the same vehicle information is no longer transmitted to the DSRC device, and the predetermined time is 5-10 minutes.

Further, the panoramic camera, the ANPR camera, and the DSRC device are disposed on the inspection vehicle, and the inspection vehicle remains stationary during the inspection process or travels in the same direction as the audited vehicle at a speed lower than the traveling speed of the audited vehicle.

A system for inspecting a traveling vehicle, comprising: a license plate recognition device for identifying a first license plate number of the vehicle suspension; and a vehicle information acquisition device for acquiring a second license plate number recorded in the vehicle information in the OBU, wherein:

The license plate recognition device is an ANPR camera, and the vehicle information acquisition device is a DSRC device;

The system also includes:

The storage module includes: a first information pool connected to the license plate recognition device, configured to store the first license plate number recognized by the license plate recognition device, and set a storage time to be TP; a second information pool connected to the device, configured to store the vehicle information including the second license plate number acquired by the vehicle information acquiring device, and set the storage time to be TM;

a matching detection module connected to the storage module, configured to perform matching detection on the first license plate number and the second license plate number;

An auditing module connected to the matching detection module is configured to perform an auditing operation on the vehicle information marked as successful.

Further, the system further includes a parameter loading module for loading preset parameters to the license plate recognition device;

The matching detection module includes:

a first matching unit, configured to perform a first matching, where the first matching means: the first The license plate number is matched in the second information pool, that is, whether the second license plate number in the vehicle information acquired in the range of time TP is scanned in the second information pool can be the same as the first The license plate number corresponds; if the matching is successful, the first license plate number and the vehicle information including the second license plate number are marked, and the successfully matched vehicle information including the second license plate number is transferred to the inspection Operation; if the matching is unsuccessful and the storage time of the first license plate number exceeds TP, generating a suspected no OBU record and deleting the first license plate number from the first information pool;

a second matching unit, configured to perform a second matching, where the second matching means: matching the second license plate number in the first information pool, that is, scanning in the first information pool within the range of time TM Whether the obtained first license plate number can correspond to the second license plate number; if the matching is successful, the first license plate number and the vehicle information including the second license plate number are marked, and the matching is successful. The vehicle information including the second license plate number is transferred to an auditing operation; if the matching is unsuccessful and the storage time of the vehicle information including the second license plate number exceeds TM, a suspected licenseless number record is generated, And deleting the vehicle information including the second license plate number from the second information pool;

a marking unit, configured to mark that the first license plate number is successfully matched when the first matching is successful or the second matching is successful, and the vehicle information that is marked to include the second license plate number is successfully matched.

Further, the system is further provided with a panoramic camera for recording a moving image video of an auditing process from the beginning of the audit to the end of the entire period to form an image and video law enforcement evidence.

Further, the storage module further includes an image storage unit, configured to store a dynamic image of the audited vehicle recorded by the panoramic camera from the beginning of the inspection to the end of the entire time period.

Further, the system further includes a secondary auditing module, configured to perform the second audit on the suspected no OBU record and the suspected no license plate number record, through the data query of the background service system, and according to the surveillance video of the panoramic camera. , to determine whether there is indeed no OBU situation or no license plate number.

Further, in the storage module, a third information pool is further disposed between the ANPR camera and the first information pool, and the third information pool is used for recording and updating within a predetermined time range from the current time. All the first license plate numbers; the specified time is 5 minutes.

The invention has the effect that the method and the system of the invention can carry out license plate recognition and vehicle information collection for the dynamic vehicle traveling on the road, and perform matching detection on the license plate information and the vehicle information, and complete the traffic inspection work.

DRAWINGS

Figure 1 is a flow chart of the method of the present invention;

2 is a flowchart showing the operation of a third information pool in a specific embodiment of the present invention;

Figure 3 is a block diagram of the system in accordance with an embodiment of the present invention.

detailed description

The invention is further described below in conjunction with the drawings and specific embodiments.

As shown in FIG. 1, a method for inspecting a traveling vehicle includes the following steps:

S1, the first license plate number of the vehicle is identified by the ANPR camera, and stored in the first information pool, and stored in the first information pool for a period of time TP;

S2, the second license plate number recorded in the vehicle information in the vehicle OBU is read by the DSRC device, and stored in the second information pool, and stored in the second information pool for a period of time TM;

S3, performing matching detection on the first license plate number and the second license plate number, and if the matching is successful, marking is performed;

S4, performing an audit operation on the vehicle information marked as successful.

In the present embodiment, an inspection system equipped with a panoramic camera, an ANPR camera, and a DSRC device is installed in the mobile inspection vehicle, and can perform real-time inspection of the passing vehicles traveling on the road. In actual work, the inspection vehicle is first parked at the designated inspection position according to the requirements, or in the same direction as the vehicle being inspected at a speed lower than the speed of the surrounding audited vehicle, and the inspection system on the inspection vehicle is logged in. After checking the back-end service system, after obtaining the authorization, the audit work can be carried out. At this time, according to the inspection system's own time parameters and lighting conditions, load the ANPR camera. Preset parameters to suit the lighting conditions at the time of the day. Camera parameters preset according to lighting conditions include: exposure duration, shutter time, aperture, and so on.

The ANPR camera utilizes ANPR technology (Automatic Number Plate Recognition) for identifying the first license plate number of the vehicle, and the first license plate number is the license plate number of the vehicle suspension.

The panoramic camera (and / or ANPR camera) can record the video of all the audited vehicles during the inspection work, and provide the image information of the second review for the inspection work.

Dedicated Short Range Communication (DSRC), a dedicated short-range communication technology, is an efficient wireless communication technology that enables the identification and two-way communication of moving targets under high-speed motion in a small area (usually tens of meters). The technology can realize real-time, accurate and reliable two-way transmission of images, voices and data in a small range, and interact with the on-board unit (OBU, On Board Unit) to realize functions such as vehicle identification and electronic deduction.

The onboard unit OBU is an in-vehicle positioning terminal with functions such as secure vehicle information storage, self-inspection and DSRC communication.

In this embodiment, the first license plate number of the vehicle is identified by the ANPR camera and stored in the first information pool, and the storage time is set to TP. The first information pool is used to store the first license plate number and the corresponding vehicle video image. Reading the vehicle information of the vehicle OBU through the DSRC device, and storing the information in the second information pool, setting the storage time to TM, the OBU as the vehicle-mounted unit for recording the vehicle information, the vehicle information including the second license plate number, It is the license plate number, as well as the model, appearance size, color, brand, owner information, OBU status information, self-inspection record information, and other related vehicle information. The second information pool is used to store the vehicle information.

After obtaining the first license plate number and the vehicle information including the second license plate number, the matching measurement is first performed, that is, whether the first license plate number and the vehicle information including the second license plate number belong to the same vehicle. This is done by two alternate matching operations:

First matching: matching the first license plate number in the second information pool, that is, scanning in the second information pool whether the second license plate number in the vehicle information acquired in the range of time TP can be the same as the first license plate number Correspondingly, the set time range is 5-10 minutes, but it is not limited to this time range, and can be flexibly adjusted according to actual conditions; if the matching is successful, the first license plate number and the vehicle information including the second license plate number are performed by the marking unit. Mark and match the successful inclusion of the second license plate number The vehicle information is subjected to an auditing operation; if the matching is unsuccessful and the storage time of the first license plate number exceeds TP, a suspected no OBU record is generated, and the first license plate number is deleted from the first information pool;

Second matching: matching the second license plate number in the first information pool, that is, scanning in the first information pool whether the first license plate number acquired within the set time range before and after the time TM can be the same as the second license plate number Correspondingly, the set time range is 5-10 minutes, but it is not limited to this time range, and can be flexibly adjusted according to actual conditions; if the matching is successful, the first license plate number and the vehicle information including the second license plate number are performed by the marking unit. Marking, and performing a checking operation on the successfully matched vehicle information including the second license plate number; if the matching is unsuccessful and the storage time of the vehicle information including the second license plate number exceeds TM, a suspected licenseless license record is generated, The vehicle information including the second license plate number is deleted from the second information pool.

The inspection operation refers to checking whether the illegally recorded vehicle information is marked as a match, and if the audit has no illegal record, a legal inspection record is generated; if there is an illegal record, an illegal inspection record is generated; finally, at the first The first license plate number marked as a match is deleted in the information pool, and the vehicle information including the second license plate number marked as successful is deleted in the second information pool.

The panoramic camera (and/or ANPR camera) records the dynamic video image of the audited vehicle throughout the time period from the start of the audit to the end.

The auditor can later search through the video to find out whether the suspected licenseless number record is accurate, and perform auxiliary inspection on other problem situations. The suspected OBU-free record and the suspected no-car license number record are subject to secondary review; the audit system can also be combined. Real-time data query to the background service system to determine whether the vehicle does not have an OBU or no license plate.

In the process of recognizing the first license plate number of the vehicle, the ANPR camera may directly delete the first license plate number whose recognition result does not meet the requirement, if the identified result obviously does not meet the naming specification (missing number or garbled number, etc.) ).

In addition, in order to ensure that only the license plate number in the first information pool (the preferred time range is 5 minutes) is saved in the first information pool and is not repeated, the amount of information accumulated in the first information pool in a short time is prevented from being excessively large, as shown in FIG. 2 Show that the following steps are taken before the first license plate number is stored in the first information pool:

1) The first license plate number recognized by the ANPR camera is first stored in the third information pool, and if the first license plate number already exists in the third information pool, the coverage is updated to update the acquisition time. The three information pool is used for recording and updating all the first license plate numbers obtained within a predetermined time range from the current time (preferably, the time range is 5 minutes);

2) scanning in the first information pool to confirm whether the first license plate number recorded by the third information pool already exists, and if present, the first license plate number is no longer added from the third information pool to the first information In the pool, if not, the first license plate number is stored in the first information pool.

In order to ensure that only the vehicle information in the second information pool is saved for the most recent period of time (preferably the time range is 5 minutes) and is not repeated, to avoid excessive amount of information accumulated in the second information pool in a short time, the following steps are taken: The OBU obtained by the vehicle information is required to remain silent for a specified period of time (preferred time range is 5-10 minutes), that is, the OBU no longer responds to the auditing system's auditing command during the silent period, that is, during the silent period. The same said vehicle information is no longer sent to the DSRC device of the auditing system.

As shown in FIG. 3, a specific embodiment of the present invention further provides a system for auditing a traveling vehicle, including: a panoramic camera 400, an ANPR camera 200, and a DSRC device 300; the ANPR camera 200 is used to identify a first license plate number of the vehicle. The first license plate number is a license plate number of the vehicle suspension; the DSRC device 300 is a dedicated short-range communication device for interacting with the OBU, and the OBU is an on-board unit for recording vehicle information, The vehicle information includes a second license plate number, and the second license plate number is a license plate number;

The parameter loading module 100 is further configured to load preset parameters for the ANPR camera, including: exposure duration, shutter time, aperture, and the like;

The storage module 500 includes:

a first information pool 501 connected to the ANPR camera 200 for storing the first license plate number by the ANPR camera, and setting a save time to TP;

a second information pool 502 connected to the DSRC device 300 for storing the vehicle information including the second license plate number acquired by the DSRC device, and setting the storage time to be TM;

The matching detection module 600 connected to the storage module 500 is configured to perform matching detection on the first license plate number and the second license plate number;

The auditing module 700 connected to the matching detection module 600 is configured to perform an auditing operation on the vehicle information marked as successful.

In this embodiment, the matching detection module 600 includes:

a first matching unit 601, configured to perform a first matching, where the first matching means: matching the first license plate number in the second information pool, that is, scanning in the second information pool Whether the second license plate number in the acquired vehicle information can correspond to the first license plate number within the range of time TP (preferably time range is 5-10 minutes); if the matching is successful, the pair of marking units is The first license plate number and the vehicle information including the second license plate number are marked, and the successfully matched vehicle information including the second license plate number is transferred to the inspection operation; if the matching is unsuccessful and the first license plate number is If the storage duration exceeds TP, a suspected OBU-free record is generated and the first license plate number is deleted from the first information pool;

The second matching unit 602 is configured to perform a second matching, where the second matching means: matching the second license plate number in the first information pool, that is, scanning in the first information pool before and after the time TM Whether the first license plate number obtained within a set time range (preferably a time range is 5-10 minutes) can correspond to the second license plate number; if the matching is successful, the first license plate number is Marking the vehicle information including the second license plate number, and transferring the successfully matched vehicle information including the second license plate number to an auditing operation; if the matching is unsuccessful and including the vehicle information of the second license plate number If the storage duration exceeds TM, a suspected licenseless record is generated, and the vehicle information including the second license plate number is deleted from the second information pool;

The marking unit 603 is configured to mark that the first license plate number is successfully matched when the first matching is successful and the second matching is successful, and the vehicle information that is marked to include the second license plate number is successfully matched. .

The storage module 500 further includes an image storage unit 503 for storing a dynamic video image of the audited vehicle recorded by the panoramic camera 400 (and/or the ANPR camera 200) from the beginning of the audit to the end of the entire time period.

The system of the present invention further includes a secondary auditing module 800 for performing the data query of the suspected no OBU record and the suspected no license plate number, through the data query of the background service system, and according to the surveillance video of the panoramic camera. A second review to determine whether there is indeed no OBU or no license plate number.

In the storage module 500, the ANPR camera 200 and the first information pool intermediate 501 are further provided with a third information pool 504, which is used for recording and updating the current time interval. All the first license plate numbers obtained within the specified time range, the specified time is 5-10 minutes.

In addition, the system components provided by the specific embodiments of the present invention include, but are not limited to, a host module, a communication module (including wired communication and wireless, mobile communication).

For example, a successful matching process assumes that a vehicle carrying the OBU with the license plate number "12345", when passing through the inspection area, the ANPR camera recognizes the license plate number and stores the license plate number "12345" in the third information pool; Then, the first information pool is scanned to confirm that the license plate number "12345" is stored in the first information pool when the same license plate number is not present; and the DSRC device interacts with the OBU, and the OBU sends the vehicle information to the DSRC. The vehicle information includes a vehicle license plate number "12345" and a vehicle type, an appearance size, a color, a brand, a vehicle owner information, an OBU status information, a self-inspection record information, an illegal record, and other related vehicle information, etc., and the vehicle information is Save to the second information pool.

First, the license plate number "12345" in the first information pool is scanned in the second information pool to confirm whether there is vehicle information including the license plate number "12345" in the second information pool, and the scan result is present. Therefore, the matching is considered successful, and the "12345" license plate number in the first information pool and the vehicle information submission flag unit containing the "12345" license plate number in the second information pool are submitted to the marking unit for matching success flag, and then to the second information pool. The vehicle information marked with the matching license number is “12345” is checked to confirm whether there is illegal record in the vehicle information. If there is illegal record, an illegal inspection record is generated; if the inspection has no illegal record, a legal inspection record is generated. . Finally, the "12345" license plate number in the first information pool is deleted, and the vehicle information in the second information pool containing the license plate number "12345" is deleted. The inspection of a vehicle loaded with OBU was completed.

The method and system of the present invention are not limited to the embodiments described in the specific embodiments, and those skilled in the art can obtain other embodiments according to the technical solutions of the present invention, which also belong to the technical innovation scope of the present invention.

Claims

A method of auditing a traveling vehicle, comprising the steps of:

(1) identifying the first license plate number of the vehicle by the ANPR camera, and storing it in the first information pool, and storing the time TP in the first information pool;

(2) reading the second license plate number recorded in the vehicle information in the vehicle OBU by the DSRC device, and storing it in the second information pool, and storing the TM in the second information pool for a period of time;

(3) performing matching detection on the first license plate number and the second license plate number, and if the matching is successful, marking is performed;

(4) Perform an audit operation on the vehicle information marked as successful.
The method of claim 1 wherein the matching detection in step (3) comprises:

First matching: matching the first license plate number in the second information pool, that is, scanning the second license plate in the vehicle information acquired in the range of time TP in the second information pool Whether the number can correspond to the first license plate number; if the match is successful, the first license plate number and the vehicle information including the second license plate number are marked, and the matching includes the second license plate The vehicle information of the number is transferred to the auditing operation; if the matching is unsuccessful and the storage length of the first license plate number exceeds TP, a suspected no OBU record is generated, and the first license plate number is generated from the first information Deleted in the pool;

a second matching: matching the second license plate number in the first information pool, that is, scanning in the first information pool whether the first license plate number acquired in the range of time TM can be the same as the second The license plate number corresponds; if the matching is successful, the first license plate number and the vehicle information including the second license plate number are marked, and the successfully matched vehicle information including the second license plate number is transferred to the inspection Operating; if the matching is unsuccessful and the storage time of the vehicle information including the second license plate number exceeds TM, generating a suspected licenseless number record and the said vehicle information including the second license plate number is The second information pool is deleted.
The method of claim 2 wherein said TP and TM time ranges from 5 to 10 minutes.
The method according to claim 2 or 3, wherein the checking operation in the step (4) is to check whether the illegal information is included in the vehicle information marked as being successfully matched, and if the audit has no illegal record, it is generated. a legal audit record; if there is an illegal record, generating an illegal audit record; finally deleting the first license plate number marked as successful in the first information pool, and deleting the first license plate in the second information pool The vehicle information including the second license plate number marked as successful is matched.
The method of claim 1 wherein the panoramic camera is used to record a dynamic image of the audited vehicle from the beginning of the audit to the end of the entire time period.
The method of claim 2, wherein the suspected OBU-free record and the suspected car-free license number record are queried through a data query of the background service system, and a second review is performed according to the surveillance video of the panoramic camera. Determine if there is no OBU or no license plate number.
The method according to claim 1 or 2, wherein in the step (1), after the first license plate number is acquired, before being stored in the first information pool, the method further comprises the following steps:

1) The first license plate number is first stored in the third information pool, and the third information pool is used for recording and updating all the first license plate numbers obtained within a predetermined time range from the current time; the specified time is 5 minutes;

2) Scanning in the first information pool to confirm whether the first license plate number recorded in the third information pool already exists, and if present, the first license plate number is no longer added from the third information pool to the first information pool. If not, the first license plate number is stored from the third information pool into the first information pool.
The method according to claim 1 or 2, wherein the OBU obtained by the vehicle information is required to remain in a silent state for a predetermined period of time, and the same said vehicle information is no longer transmitted to the DSRC device. The time is 5-10 minutes.
The method according to claim 5, wherein said panoramic camera, ANPR camera, and DSRC device are disposed on an inspection vehicle, and said inspection vehicle remains stationary or at a speed lower than a speed of the inspected vehicle during the inspection process. Drive in the same direction as the vehicle being audited.
A system for inspecting a traveling vehicle, comprising: a license plate recognition device for identifying a first license plate number of the vehicle suspension; and a vehicle information acquisition device for acquiring a second license plate number recorded in the vehicle information in the OBU, wherein:

The license plate recognition device is an ANPR camera, and the vehicle information acquisition device is a DSRC device;

The system also includes:

The storage module includes: a first information pool connected to the license plate recognition device, configured to store the first license plate number recognized by the license plate recognition device, and set a storage time to be TP; a second information pool connected to the device, configured to store the vehicle information including the second license plate number acquired by the vehicle information acquiring device, and set the storage time to be TM;

a matching detection module connected to the storage module, configured to perform matching detection on the first license plate number and the second license plate number;

An auditing module connected to the matching detection module is configured to perform an auditing operation on the vehicle information marked as successful.
The system of claim 10, wherein the system further comprises a parameter loading module for loading preset parameters to the license plate recognition device;

The matching detection module includes:

a first matching unit, configured to perform a first matching, where the first matching means: matching the first license plate number in the second information pool, that is, scanning in the second information pool in time Whether the second license plate number in the acquired vehicle information in the range of the TP can correspond to the first license plate number; if the matching is successful, the first license plate number and the second license plate number are included The vehicle information is marked, and the successfully matched vehicle information including the second license plate number is transferred to the inspection operation; if the matching is unsuccessful and the storage time of the first license plate number exceeds TP, a suspected OBU is generated Recording and deleting the first license plate number from the first information pool;

a second matching unit, configured to perform a second matching, where the second matching means: the second The license plate number is matched in the first information pool, that is, whether the first license plate number acquired in the range of time TM can be scanned in the first information pool can correspond to the second license plate number; if the matching is successful Marking the first license plate number and the vehicle information including the second license plate number, and transferring the vehicle information including the second license plate number that is successfully matched to an inspection operation; if the matching is unsuccessful and includes If the storage time of the vehicle information of the second license plate number exceeds TM, a suspected licenseless number record is generated, and the vehicle information including the second license plate number is deleted from the second information pool;

a marking unit, configured to mark that the first license plate number is successfully matched when the first matching is successful or the second matching is successful, and the vehicle information that is marked to include the second license plate number is successfully matched.
The system of claim 11 wherein the system is further provided with a panoramic camera for recording dynamic image video of the auditing process from the beginning of the audit to the end of the auditing process to form an image and video enforcement evidence.
A system according to claim 12, wherein said storage module further comprises an image storage unit for storing a dynamic image of the audited vehicle recorded by said panoramic camera from the beginning of the inspection to the end of the entire time period.
The system of claim 13 further comprising: a secondary auditing module for querying said suspected no OBU record and said suspected no license plate number, querying data through a background service system, and according to a panoramic camera The surveillance video is subject to a second review to determine if there is indeed no OBU or no license plate number.
The system according to claim 10 or 11, wherein in the storage module, a third information pool is further disposed between the ANPR camera and the first information pool, and the third information pool is used. All first license plate numbers obtained within a predetermined time range from the current time are recorded and updated; the specified time is 5 minutes.