CN115798067A - Electronic license plate recognition system based on high-power RSU and recognition method thereof - Google Patents
Electronic license plate recognition system based on high-power RSU and recognition method thereof Download PDFInfo
- Publication number
- CN115798067A CN115798067A CN202211439332.0A CN202211439332A CN115798067A CN 115798067 A CN115798067 A CN 115798067A CN 202211439332 A CN202211439332 A CN 202211439332A CN 115798067 A CN115798067 A CN 115798067A
- Authority
- CN
- China
- Prior art keywords
- license plate
- vehicle
- information
- unit
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000010365 information processing Effects 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 101001093748 Homo sapiens Phosphatidylinositol N-acetylglucosaminyltransferase subunit P Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Traffic Control Systems (AREA)
Abstract
The invention discloses an electronic license plate recognition system based on a high-power RSU and a recognition method thereof, which relate to the technical field of RSU electronic license plates and comprise a license plate recognition system, wherein the license plate recognition system comprises an RSU antenna transceiving unit, a radar unit, an image acquisition unit, an image recognition unit and an information processing unit; the RSU antenna transceiving unit is used for establishing a communication link with the on-board unit OBU, detecting vehicle OBU information and calibrating vehicle image coordinates; the radar unit is used for detecting the multi-target vehicles and calibrating the image coordinates of the vehicles; the image acquisition unit is used for acquiring a single-frame snapshot image containing a vehicle; the license plate recognition system forms a license plate queue with the license plate information recognized by the license plate recognition camera according to the recognition sequence, and the license plate recognition system can well solve the problems of ETC adjacent lane interference and vehicle following interference by reading the license plate information from the OBU (on-board unit) of the vehicle to be recognized.
Description
Technical Field
The invention relates to the technical field of RSU (remote license Unit) electronic license plates, in particular to an electronic license plate recognition system based on a high-power RSU and a recognition method thereof.
Background
The RSU is a roadside unit device, is usually installed in the both sides on road in the ETC system, adopts DSRC technique can carry out the communication with on-board unit OBU to mutual transmission information, and then can realize vehicle identification's effect, in highway, parking lot management, installs the RSU at the roadside, thereby can establish unmanned on duty's quick special lane, thereby replace the manual work, and then raise the efficiency.
Through the retrieval, chinese patent grant number is CN 108550196A's patent discloses a passenger train ETC lane system, this patent is through optimizing and standardizing ETC lane overall arrangement and structure, the traffic efficiency in ETC special lane has been improved greatly, and reduced the transaction failure rate of deducting fees, nevertheless can not avoid the adjacent car interference at the in-process of using, and then lead to reducing the accuracy of discernment easily, the device is not in proper order to the discernment of vehicle simultaneously, and then lead to the phenomenon of following the car and can not effectively solve, and then reduced the accuracy of discernment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the electronic license plate recognition system based on the high-power RSU, on one hand, the accuracy of license plate recognition is improved, the license plate recognition system forms a license plate queue by the license plate information recognized by the license plate recognition camera according to the recognition sequence, the license plate recognition system reads the license plate information from the OBU on the vehicle to be recognized and matches the license plate information recognized in advance by the license plate recognition camera in the license plate queue, the problems of adjacent lane interference and following interference of ETC can be well solved, and the problems provided in the background technology are solved.
In order to realize the purpose, the invention is realized by the following technical scheme: the electronic license plate recognition system based on the high-power RSU comprises an electronic license plate recognition system, wherein the license plate recognition system comprises an RSU antenna transceiving unit, a radar unit, an image acquisition unit, an image recognition unit and an information processing unit;
the RSU antenna transceiving unit is used for establishing a communication link with the OBU, detecting the OBU information of the vehicle and calibrating the image coordinates of the vehicle;
the radar unit is used for detecting a multi-target vehicle and calibrating the image coordinates of the vehicle;
the image acquisition unit is used for acquiring a single-frame snapshot image containing a vehicle;
the image identification unit is used for detecting and identifying the vehicle by using the vehicle image coordinates detected by the RSU antenna transceiving unit or the vehicle image coordinates detected by the radar unit to obtain a vehicle identification result;
and the information processing unit is used for matching the RSU antenna transceiving unit with the vehicle image coordinates of the radar unit.
Preferably, the high-power RSU-based electronic license plate recognition system according to claim 1, wherein: and the on-board unit OBU comprises a license plate number, a license plate color, a vehicle type and a vehicle model.
Preferably, the image identification unit and the image acquisition unit are separately installed, the image acquisition unit and the image identification unit are connected in a wireless or wired mode, and the RSU antenna transceiving unit works in a single-antenna normally-open mode.
Preferably, the validity period of the license plate information of the lane identified by the image acquisition unit in the license plate queue is 1 hour, and the license plate information exceeding the validity period is covered.
Preferably, the image acquisition unit is installed on one side or two sides of a lane, the angle of the image acquisition unit on the lane is not limited by the installation position of the license plate recognition system, and the image acquisition unit is installed in front of the vehicle coming direction of the license plate recognition system.
Preferably, the identification method of the electronic license plate identification system based on the high-power RSU comprises the following identification steps:
the method comprises the following steps: capturing a single-frame image of the vehicle through an image acquisition unit, and detecting and identifying the vehicle through an image identification unit to obtain a vehicle identification result;
step two: the license plate recognition system puts the information of the license plate of the vehicle lane recognized by the image acquisition unit into a license plate queue according to the recognition sequence;
step three: the license plate recognition system reads license plate information in an OBU (on-board unit) of a vehicle to be recognized;
step four: comparing the vehicle identification result with the vehicle OBU information, outputting the vehicle OBU information in a consistent manner, determining that the license plate information in the OBU of the vehicle to be identified read by the license plate identification system is the vehicle information of the lane, and outputting an image vehicle identification result, the vehicle OBU information and an inconsistent alarm in an inconsistent manner; in the information processing unit, if the RSU antenna transceiving unit does not detect the vehicle OBU information and the radar unit detects the vehicle and marks the vehicle image coordinates, the vehicle can be determined as an ETC adjacent lane interference vehicle, ETC transaction is terminated, and if the matching is inconsistent, the information processing unit triggers the image acquisition unit to capture images; the information processing unit triggers the image acquisition unit to capture the image;
step five: the license plate information in the OBU of the vehicle to be recognized, which is read by the license plate recognition system, is matched with the license plate information in the license plate queue through the information processing unit, the transaction is carried out when the same data exist in the database, and meanwhile, whether the license plate information in the OBU of the vehicle to be recognized, which is read by the license plate recognition system, is the earliest recognized license plate information in the license plate queue is judged, if the license plate information is the earliest recognized license plate information in the license plate queue, the ETC transaction is completed, and the vehicle information is covered from the database; if the license plate information is not the earliest recognized license plate information in the license plate queue, the ETC vehicle following interference can be determined, and the ETC transaction is terminated.
Preferably, the vehicle identification result in the fourth step comprises a vehicle snapshot picture, a license plate number, a license plate color, a vehicle money and a vehicle type.
The invention provides an electronic license plate recognition system based on a high-power RSU and a recognition method thereof. The method has the following beneficial effects:
compared with the prior art, the license plate recognition cameras of the split RSU are arranged on one side or two sides of the lane entrance, so that on one hand, the accuracy of license plate recognition is improved, the license plate recognition system forms a license plate queue with the license plate information recognized by the license plate recognition cameras according to the recognition sequence, the license plate recognition system reads the license plate information from the OBU on the vehicle to be recognized and matches the license plate information recognized in advance by the license plate recognition cameras in the license plate queue, and the problems of adjacent lane interference and following interference of ETC can be well solved.
Drawings
FIG. 1 is a schematic diagram of the identification step of the present invention;
FIG. 2 is a block diagram of the system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a technical solution: the electronic license plate recognition system based on the high-power RSU and the recognition method thereof comprise an electronic license plate recognition system, wherein the license plate recognition system comprises an RSU antenna transceiving unit, a radar unit, an image acquisition unit, an image recognition unit and an information processing unit;
the RSU antenna transceiving unit is used for establishing a communication link with the OBU, detecting the OBU information of the vehicle and calibrating the image coordinates of the vehicle;
the radar unit is used for detecting the multi-target vehicles and calibrating the image coordinates of the vehicles;
the image acquisition unit is used for acquiring a single-frame snapshot image containing a vehicle;
the image identification unit is used for detecting and identifying the vehicle by using the vehicle image coordinates detected by the RSU antenna transceiving unit or the vehicle image coordinates detected by the radar unit to obtain a vehicle identification result;
and the information processing unit is used for matching the RSU antenna transceiving unit with the vehicle image coordinates of the radar unit.
In this embodiment, when a vehicle enters an ETC lane, the image acquisition unit is installed at one side of an entrance of the lane, the image acquisition unit first identifies license plate information of the vehicle in the lane and sends the license plate information to the license plate recognition system, the license plate recognition system places the license plate information of the vehicle in the lane identified by the image acquisition unit into a license plate queue according to a recognition sequence, and the license plate recognition system places the license plate information of the vehicle in the lane identified by the image acquisition unit into the license plate queue according to the recognition sequence and maintains time validity of the license plates in the queue.
Preferably, the OBU comprises a license plate number, a license plate color, a vehicle type and a vehicle type.
In this embodiment, when the license plate exceeds the valid time, the license plate information is overwritten and deleted from the database, the valid time of the license plate in the queue is generally set to be less than 1 hour, and if the license plate information exceeds the hour in the license plate queue, the license plate information is deleted from the queue.
Preferably, the image identification unit and the image acquisition unit are separately installed, the image acquisition unit and the image identification unit are connected in a wireless or wired mode, and the RSU antenna transceiving unit works in a single-antenna normally-open mode.
Preferably, the validity period of the license plate information of the vehicle lane identified by the image acquisition unit in the license plate queue is 1 hour, and the license plate information exceeding the validity period is covered.
Preferably, the image acquisition unit is installed on one side or two sides of a lane, the angle of the image acquisition unit on the lane is not limited by the installation position of the license plate recognition system, and the image acquisition unit is installed in front of the vehicle coming direction of the license plate recognition system.
In the embodiment, the license plate information of the OBU read by the license plate recognition system is matched with the license plate information in the license plate queue, and the vehicle is determined to be a vehicle in the lane, so that ETC transaction is realized, and the adjacent vehicle interference can be prevented; and the license plate recognition system reads the license plate information in the OBU of the vehicle to be recognized.
The invention discloses an identification method of an electronic license plate identification system based on a high-power RSU, which comprises the following steps:
the method comprises the following steps: capturing a single-frame image of the vehicle through an image acquisition unit, and detecting and identifying the vehicle through an image identification unit on the single-frame captured image to obtain a vehicle identification result;
step two: the license plate recognition system puts the information of the license plate of the vehicle lane recognized by the image acquisition unit into a license plate queue according to the recognition sequence;
step three: the license plate recognition system reads license plate information in an OBU (on-board unit) of a vehicle to be recognized;
step four: comparing the vehicle identification result with the vehicle OBU information, outputting the vehicle OBU information in a consistent manner, determining that the license plate information in the OBU of the vehicle to be identified read by the license plate identification system is the vehicle information of the lane, and outputting an image vehicle identification result, the vehicle OBU information and an inconsistent alarm in an inconsistent manner; in the information processing unit, if the RSU antenna transceiving unit does not detect the vehicle OBU information and the radar unit detects the vehicle and marks the vehicle image coordinates, the vehicle can be determined as an ETC adjacent lane interference vehicle, ETC transaction is terminated, and if the matching is inconsistent, the information processing unit triggers the image acquisition unit to capture images; the information processing unit triggers the image acquisition unit to capture the image;
step five: the method comprises the steps that license plate information in an OBU (on-board unit) of a vehicle to be recognized, which is read by a license plate recognition system, is matched with license plate information in a license plate queue through an information processing unit, when the same data exist in a database, transaction is carried out, and whether the license plate information in the OBU of the vehicle to be recognized, which is read by the license plate recognition system, is the earliest recognized license plate information in the license plate queue is judged; if the license plate information is not the earliest recognized license plate information in the license plate queue, the ETC vehicle following interference can be determined, and the ETC transaction is terminated.
Preferably, the vehicle identification result in the fourth step comprises a vehicle snapshot picture, a license plate number, a license plate color, a vehicle money and a vehicle type.
It should be noted that in the identification method, the information processing unit is used for matching license plate information in a license plate queue, when the same data exist in the database, transaction is carried out, whether license plate information in an OBU (on-board unit) of a vehicle to be identified, which is read by a license plate identification system, is the earliest identified license plate information in the license plate queue is judged, if the license plate information is the earliest identified license plate information in the license plate queue, ETC (electronic toll Collection) transaction is completed, and the vehicle information is covered from the database; if the license plate information is not the earliest recognized license plate information in the license plate queue, the ETC vehicle following interference can be determined, and the ETC transaction is terminated.
Referring to fig. 1, in the present embodiment, the electronic license plate recognition system based on high-power RSU of the present invention is as follows: when a vehicle enters an ETC lane, an image acquisition unit is installed on one side of a lane entrance, the image acquisition unit firstly identifies license plate information of the vehicle in the lane and sends the license plate information to a license plate recognition system, the license plate recognition system places the license plate information of the vehicle in the lane identified by the image acquisition unit into a license plate queue according to a recognition sequence, the license plate recognition system places the license plate information of the vehicle in the lane identified by the image acquisition unit into the license plate queue according to the recognition sequence and maintains the time validity of the license plates in the queue, when the license plates exceed the valid time, the license plate information is deleted from a database in a covering manner, the valid time of the license plates in the queue is generally set to be less than 1 hour, and if the license plate information exceeds the time in the license plate queue, the license plate information is deleted from the queue; if the license plate information of the OBU read by the license plate recognition system is matched with the license plate information in the license plate queue, the vehicle is determined as the vehicle in the lane, so that ETC transaction is realized, and the adjacent vehicle interference can be prevented; the license plate information in the OBU of the vehicle to be recognized, which is read by the license plate recognition system, is matched with the license plate information in the license plate queue through the information processing unit, the transaction is carried out when the same data exist in the database, whether the license plate information in the OBU of the vehicle to be recognized, which is read by the license plate recognition system, is the earliest recognized license plate information in the license plate queue is judged, if the license plate information is the earliest recognized license plate information in the license plate queue, the ETC transaction is completed, and the vehicle information is covered from the database; if the license plate information is not the earliest recognized license plate information in the license plate queue, the ETC vehicle following interference can be determined, and the ETC transaction is terminated.
While there have been shown and described what are at present considered to be the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. Electronic license plate recognition system based on high-power RSU, including license plate recognition system, license plate recognition system includes RSU antenna transceiver unit, radar unit, image acquisition unit, image recognition unit and information processing unit, its characterized in that:
the RSU antenna transceiving unit is used for establishing a communication link with the OBU, detecting the OBU information of the vehicle and calibrating the image coordinates of the vehicle;
the radar unit is used for detecting the multi-target vehicles and calibrating the image coordinates of the vehicles;
the image acquisition unit is used for acquiring a single-frame snapshot image containing a vehicle;
the image identification unit is used for detecting and identifying the vehicle by using the vehicle image coordinates detected by the RSU antenna transceiving unit or the vehicle image coordinates detected by the radar unit to obtain a vehicle identification result;
and the information processing unit is used for matching the RSU antenna transceiving unit with the vehicle image coordinates of the radar unit.
2. The high-power RSU-based electronic license plate recognition system of claim 1, wherein: and the OBU comprises a license plate number, a license plate color, a vehicle money and a vehicle type.
3. The high-power RSU-based electronic license plate recognition system of claim 1, wherein: the image identification unit and the image acquisition unit are installed separately, the image acquisition unit and the image identification unit are connected in a wireless or wired mode, and the RSU antenna transceiving unit works in a single-antenna normally open mode.
4. The high-power RSU-based electronic license plate recognition system of claim 1, wherein: the validity period of the license plate information of the lane identified by the image acquisition unit in the license plate queue is 1 hour, and the license plate information exceeding the validity period is covered.
5. The high-power RSU-based electronic license plate recognition system of claim 1, wherein: the vehicle license plate recognition system is characterized in that the image acquisition units are installed on one side or two sides of a lane, the angle of each image acquisition unit on the lane is not limited by the installation position of the vehicle license plate recognition system, and the image acquisition units are installed in front of the vehicle coming direction of the vehicle license plate recognition system.
6. The identification method of the high-power RSU-based electronic license plate identification system of claim 1, comprising the following method steps:
the method comprises the following steps: capturing a single-frame image of the vehicle through an image acquisition unit, and detecting and identifying the vehicle through an image identification unit on the single-frame captured image to obtain a vehicle identification result;
step two: the license plate recognition system puts the information of the license plate of the vehicle lane recognized by the image acquisition unit into a license plate queue according to the recognition sequence;
step three: the license plate recognition system reads license plate information in an OBU (on-board unit) of a vehicle to be recognized;
step four: comparing the vehicle identification result with vehicle OBU information, outputting the vehicle OBU information if the information is consistent, determining that the license plate information in the OBU of the vehicle to be identified, which is read by a license plate identification system, is the vehicle information of the current lane, and outputting an image vehicle identification result, the vehicle OBU information and an inconsistent alarm if the information is inconsistent; in the information processing unit, if the RSU antenna transceiving unit does not detect the vehicle OBU information and the radar unit detects the vehicle and marks the vehicle image coordinates, the vehicle can be determined as an ETC adjacent-lane interference vehicle, ETC transaction is stopped, and if the matching is inconsistent, the information processing unit triggers the image acquisition unit to snapshot images; the information processing unit triggers the image acquisition unit to capture the image;
step five: the license plate information in the OBU of the vehicle to be recognized, which is read by the license plate recognition system, is matched with the license plate information in the license plate queue through the information processing unit, the transaction is carried out when the same data exist in the database, and meanwhile, whether the license plate information in the OBU of the vehicle to be recognized, which is read by the license plate recognition system, is the earliest recognized license plate information in the license plate queue is judged, if the license plate information is the earliest recognized license plate information in the license plate queue, the ETC transaction is completed, and the vehicle information is covered from the database; if the license plate information is not the earliest recognized license plate information in the license plate queue, the ETC vehicle following interference can be determined, and the ETC transaction is terminated.
7. The identification method of the electronic license plate identification system based on the high-power RSU of claim 6, wherein: and the vehicle identification result in the fourth step comprises a vehicle snapshot picture, a license plate number, a license plate color, a vehicle money and a vehicle type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211439332.0A CN115798067A (en) | 2022-11-17 | 2022-11-17 | Electronic license plate recognition system based on high-power RSU and recognition method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211439332.0A CN115798067A (en) | 2022-11-17 | 2022-11-17 | Electronic license plate recognition system based on high-power RSU and recognition method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115798067A true CN115798067A (en) | 2023-03-14 |
Family
ID=85438444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211439332.0A Pending CN115798067A (en) | 2022-11-17 | 2022-11-17 | Electronic license plate recognition system based on high-power RSU and recognition method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115798067A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115966034A (en) * | 2023-03-16 | 2023-04-14 | 山东通维信息工程有限公司 | Highway equipment state data processing terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190065860A1 (en) * | 2017-08-25 | 2019-02-28 | Kapsch Trafficcom Ag | Method for surveilling a tolling system |
| CN110189424A (en) * | 2019-05-27 | 2019-08-30 | 武汉万集信息技术有限公司 | Multilane free-flow vehicle detection method and system based on multiple target radar |
| CN110349281A (en) * | 2019-06-19 | 2019-10-18 | 阿里巴巴集团控股有限公司 | A kind of charging method, apparatus and system |
| CN111260812A (en) * | 2020-03-11 | 2020-06-09 | 广西信路威科技发展有限公司 | Vehicle detection device and method based on RSU antenna, radar and image recognition |
| CN112037350A (en) * | 2020-09-08 | 2020-12-04 | 广州市埃特斯通讯设备有限公司 | License plate identification method based on split RSU |
-
2022
- 2022-11-17 CN CN202211439332.0A patent/CN115798067A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190065860A1 (en) * | 2017-08-25 | 2019-02-28 | Kapsch Trafficcom Ag | Method for surveilling a tolling system |
| CN110189424A (en) * | 2019-05-27 | 2019-08-30 | 武汉万集信息技术有限公司 | Multilane free-flow vehicle detection method and system based on multiple target radar |
| CN110349281A (en) * | 2019-06-19 | 2019-10-18 | 阿里巴巴集团控股有限公司 | A kind of charging method, apparatus and system |
| CN111260812A (en) * | 2020-03-11 | 2020-06-09 | 广西信路威科技发展有限公司 | Vehicle detection device and method based on RSU antenna, radar and image recognition |
| CN112037350A (en) * | 2020-09-08 | 2020-12-04 | 广州市埃特斯通讯设备有限公司 | License plate identification method based on split RSU |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115966034A (en) * | 2023-03-16 | 2023-04-14 | 山东通维信息工程有限公司 | Highway equipment state data processing terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5554984A (en) | Electronic traffic tariff reception system and vehicle identification apparatus | |
| EP1975884B1 (en) | Mobile object charging system and mobile object charging method by mobile object charging system | |
| US6747687B1 (en) | System for recognizing the same vehicle at different times and places | |
| KR101280874B1 (en) | Matching system of violated vehicle for hi-pass road | |
| KR101756849B1 (en) | Parking control and management system for on-street parking lot | |
| CN111932693A (en) | Management system for urban roadside parking lot | |
| CN104574540A (en) | Electronic toll collection system and method | |
| US20080062009A1 (en) | Method and system to improve traffic flow | |
| CN112738769A (en) | Method and system for preventing ETC lane following interference based on V2X | |
| CN108765975B (en) | Roadside vertical parking lot management system and method | |
| CN108986242A (en) | A kind of secondary Vehicle License Plate Recognition System and method for the not parking mobile payment lane of highway | |
| JP2808513B2 (en) | Electronic toll collection system | |
| KR20140027661A (en) | Ticketless toll gate system using plural camera | |
| CN115798067A (en) | Electronic license plate recognition system based on high-power RSU and recognition method thereof | |
| CN114999170A (en) | Intelligent analysis visualization system based on highway vehicle path data | |
| CN113256828B (en) | Road side unit synchronization system and synchronization method | |
| KR100382460B1 (en) | A fare collection a means | |
| JP2739021B2 (en) | Vehicle identification device | |
| CN108805994B (en) | Timing parking system and method | |
| JPH08315196A (en) | Method and system for specifying vehicle | |
| CN114038076B (en) | ETC misreading prevention method and device, vehicle-mounted OBU and readable storage medium | |
| CN112734960B (en) | Roadside unit, method and computer readable storage medium for ETC system | |
| JPH11306484A (en) | Management system by individual car types in unmanned parking lot | |
| JP3562417B2 (en) | Automatic toll collection system | |
| CN105336181B (en) | A kind of dynamic inspection coalignment, System and method for based on speed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |