CN110920531B - Electronic license plate adopting radio frequency identification technology - Google Patents
Electronic license plate adopting radio frequency identification technology Download PDFInfo
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- CN110920531B CN110920531B CN201911003245.9A CN201911003245A CN110920531B CN 110920531 B CN110920531 B CN 110920531B CN 201911003245 A CN201911003245 A CN 201911003245A CN 110920531 B CN110920531 B CN 110920531B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/005—Manufacturers' emblems, name plates, bonnet ornaments, mascots or the like; Mounting means therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
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- General Physics & Mathematics (AREA)
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- Computer Networks & Wireless Communication (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
Abstract
The invention provides an electronic license plate based on a radio frequency identification technology, which is different from the prior art. The electronic license plate realized by the technical scheme of the invention can automatically switch various modes to provide vehicle information to the outside. The electronic license plate is characterized by comprising a dual-mode Bluetooth communication module and a transcoding module, and when the RFID communication function of the electronic license plate fails, the dual-mode Bluetooth communication module and/or the transcoding module can be automatically switched to a Bluetooth communication mode and/or a transcoding module mode, so that the instruction interaction function specific to dual-mode Bluetooth is utilized to perform instruction communication and data interaction with the outside, and/or the transcoding module is utilized to read the parameter information of the electronic license plate, convert the parameter information into a graphic code in a graphic code display area of the transcoding module, and read by an external identification device of the vehicle. The invention also provides a recognition device matched with the electronic license plate, and the recognition device comprises a radio frequency recognition reader-writer, a Bluetooth communication assembly and at least one display assembly.
Description
Technical Field
The invention belongs to the field of vehicle management, and particularly relates to an electronic license plate adopting a radio frequency identification technology.
Background
The radio frequency identification technology, called RIFD for short, can automatically identify one or more target objects which are static or move at high speed by transmitting and receiving radio frequency signals, can obtain necessary stored information through the identification process without manual intervention, and has higher anti-malignant capability. The RIFD system includes an electronic tag attached to an identification object, a reader/writer, and a computer communication network. The electronic tag with the wireless transceiving module and the reader-writer perform data communication in a wireless mode. The concept of electronic license plates appears by combining the RFID technology with license plate management.
The electronic license plate has good application and development prospects as a novel efficient and convenient intelligent road traffic management tool. The application of the electronic license plate technology can solve the problems of anti-counterfeiting and identity recognition of the vehicle identity from the source, and realize the seamless connection between the traffic management system and all vehicles; the method can ensure real-time and reliable acquisition of road traffic information and realize organic integration of vehicle identity management and road information management.
For example, the electronic license plate disclosed in CN201342998Y can know the state information of the vehicle at any time, and when a special condition occurs, the electronic license plate can automatically send information requirement help to the information center, thereby ensuring the safety of the vehicle and the personnel. On the other hand, the vehicle information is convenient to verify, the vehicle is convenient to manage and monitor, the management automation is realized, the monitoring efficiency is improved, and the limited traffic facility resources are more effectively utilized; CN101799984A provides a system and a method for automatically checking an electronic license plate and an actual license plate, which combines an actual license plate recognition technology and an electronic license plate technology to realize checking of vehicle identity, accurately identify authenticity of the actual license plate, facilitate vehicle management, and solve various problems that the traditional method cannot be used to quickly and accurately check vehicle identity in the existing vehicle management.
However, the inventor finds that the electronic license plate mentioned in the above technical solution only stores the related information of the traditional physical license plate and the vehicle in an electronic manner, which is equivalent to the electronic physical license plate and the driving license plate, and only has a single information reading function in the form of RFID, and once the RFID communication function fails, the electronic license plate cannot be used, which brings inconvenience to the user.
Disclosure of Invention
The present invention is directed to a corresponding and effective solution for solving the above technical problems.
The present invention provides a new and innovative solution to the above technical problems, namely, an electronic license plate based on radio frequency identification technology different from the prior art.
The electronic license plate realized by the technical scheme of the invention can automatically switch states among various modes and provide vehicle information to the outside. The electronic license plate is characterized by comprising a dual-mode Bluetooth communication module and a transcoding module, and when the RFID communication function of the electronic license plate fails, the dual-mode Bluetooth communication module and/or the transcoding module can be automatically switched to a Bluetooth communication mode and/or a transcoding module mode, so that the instruction interaction function specific to dual-mode Bluetooth is utilized to perform instruction communication and data interaction with the outside, and/or the transcoding module is utilized to read the parameter information of the electronic license plate, convert the parameter information into a graphic code in a graphic code display area of the transcoding module, and read by an external identification device of the vehicle. The invention also provides a recognition device matched with the electronic license plate, and the recognition device comprises a radio frequency recognition reader-writer, a Bluetooth communication assembly and at least one display assembly.
Specifically, the technical scheme of the invention comprises two aspects:
in a first aspect, an electronic license plate adopting a radio frequency identification technology is provided, wherein a memory chip is arranged in the electronic license plate, and parameter information of a vehicle is stored in the memory chip and at least comprises a registered license plate number of the vehicle;
the electronic license plate further includes:
the radio frequency identification data chip is in communication connection with the storage chip, so that data stored by the storage chip can be interacted with the outside through a radio frequency technology;
as a first innovation point of the invention, the electronic license plate is configured with a radio frequency state feedback component, and the radio frequency state feedback component detects a communication connection state of the radio frequency identification data chip and the storage chip, and/or a data transmission feedback state of the radio frequency identification data chip;
the communication connection state refers to whether the radio frequency identification data chip and the storage chip can establish normal data communication, whether the radio frequency identification data chip can normally read the data content of the storage chip, and the like;
as a second innovation point of the invention, the electronic license plate further comprises a dual-mode bluetooth communication component, and based on a detection result of the radio frequency state feedback component, the dual-mode bluetooth communication component opens or closes a communication state with the storage chip;
as a third innovation point of the invention, the electronic license plate further comprises at least one transcoding component of a graphic code display area, when the detection result of the radio frequency state feedback component is abnormal, the transcoding component is communicated with a storage chip and acquires the parameter information of the vehicle, converts the parameter information into a graphic code form, and displays the graphic code form in the graphic code display area;
wherein, the detection result of the radio frequency state feedback component is abnormal, which includes one or the combination of the following conditions:
(1) the radio frequency identification data chip and the storage chip can not establish data communication;
(2) the radio frequency identification data chip cannot convert the vehicle information stored by the storage chip into a radio frequency signal;
(3) the radio frequency signals transmitted by the radio frequency identification data chip cannot be received by the identification device of the electronic license plate.
Specifically, the dual-mode bluetooth communication module, based on the detection result of the radio frequency state feedback module, opens or closes the communication state with the memory chip, including: and if the detection result of the radio frequency state feedback assembly is abnormal, starting the communication state of the dual-mode Bluetooth communication assembly and the storage chip.
In the technical scheme of the invention, the dual-mode Bluetooth communication assembly is in a dormant state under a normal condition and does not need to communicate with the outside.
Moreover, a classic Bluetooth module and a BLE Bluetooth module are arranged in the dual-mode Bluetooth communication assembly.
As a further preferred option, the electronic license plate further comprises a wireless signal receiver for receiving a feedback signal of a specific frequency sent by the recognition device of the electronic license plate; the wireless signal receiver is communicatively coupled to the transcoding component.
In a second aspect, the invention further provides a recognition device used in cooperation with the electronic license plate, wherein the recognition device comprises a radio frequency recognition reader-writer, a bluetooth communication assembly and at least one display assembly.
When the radio frequency identification reader-writer is used cooperatively, the radio frequency identification reader-writer is used for receiving the radio frequency signal transmitted by the radio frequency identification data chip and displaying vehicle parameter information corresponding to the radio frequency signal on the display component;
the display component is used for judging whether parameter information is received within preset time; if the parameter information is not received, activating the Bluetooth communication assembly;
the Bluetooth communication assembly sends a communication state feedback signal to the electronic license plate, the electronic license plate activates the dual-mode Bluetooth communication assembly of the electronic license plate, and the communication state of the dual-mode Bluetooth communication assembly and the storage chip is started.
As a further innovation, the identification device further comprises an antenna assembly, when the display assembly and the bluetooth communication assembly do not respond when time is out, the antenna assembly sends a feedback signal with a specific frequency to the electronic license plate, and the electronic license plate activates the transcoding assembly, so that the transcoding assembly communicates with a storage chip, obtains parameter information of the vehicle, converts the parameter information into a graphic code form, and displays the graphic code in the graphic code display area.
In cooperation with this, the recognition device further comprises a code scanning recognition component for recognizing the graphic code displayed by the electronic license plate in the graphic code display area.
Further advantages of the present invention will be further apparent from the detailed description of the preferred embodiments in conjunction with the drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a structural diagram of an appearance of an electronic license plate according to the present application;
FIG. 2 is an internal circuit diagram of an electronic license plate according to the present application;
FIG. 3 is a schematic view of an electronic license plate recognition device according to the present application;
FIG. 4 is a flowchart of a method for using an electronic license plate according to the present application.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
It is first noted that the illustrations depicted in fig. 1-3 are schematic representations only, and that some of the dimensions are not necessarily drawn to scale relative to actual dimensions. Some of the dimensional details (e.g., vehicle size, position and orientation of the identification device) are enlarged, reduced or skewed as necessary for illustration, but will be understood by those skilled in the art in light of the overall written description of this application.
Fig. 1 is a schematic example of an appearance structure diagram of the electronic license plate according to the present invention.
In fig. 1, the electronic license plate includes a radio frequency identification data chip, a dual-mode bluetooth communication component, a transcoding component (a circular area in the figure), and a storage chip.
Wherein, constitute by classic bluetooth module and BLE bluetooth module bimodulus bluetooth communication subassembly.
It is worth pointing out that classic bluetooth can only do data transmission, can not do the instruction interaction with software, and bluetooth module adopts the bimodulus bluetooth, embeds classic bluetooth module and BLE bluetooth module respectively, on the basis of most classic bluetooth, has added BLE bluetooth, sends operating instruction, carries out data transmission by classic bluetooth.
The dual-mode Bluetooth design effectively solves the problem of technical limitation on popularization and development of the near field wireless communication application based on the low power consumption Bluetooth technology because the basic code rate Bluetooth equipment cannot communicate with the low power consumption Bluetooth equipment.
On the basis of fig. 1, further referring to fig. 2, it is a circuit diagram of the internal circuit of the electronic license plate.
Specifically, four radio frequency identification data chips distributed at four corners of the electronic license plate are in communication connection with the storage chip;
the radio frequency state feedback assembly detects the communication connection state of the radio frequency identification data chip and the storage chip; the data transmission feedback state of the radio frequency identification data chip can be detected;
the dual-mode Bluetooth communication component is used for starting or closing the communication state with the storage chip based on the detection result of the radio frequency state feedback component;
the transcoding component comprises at least one graphic code display area, and when the detection result of the radio frequency state feedback component is abnormal, the transcoding component is communicated with the storage chip and acquires the parameter information of the vehicle, converts the parameter information into a graphic code form, and displays the graphic code form in the graphic code display area.
In one embodiment, if it is detected that the radio frequency identification data chip fails to establish data communication with the memory chip, the dual mode bluetooth communication component opens a communication state with the memory chip.
Specifically, the radio frequency state feedback component sends the detected abnormal state signal to the BLE bluetooth module, and the BLE bluetooth module sends an operation instruction, so that the classic bluetooth acquires data information of the memory chip;
in another embodiment, if it is detected that the radio frequency identification data chip fails to convert the vehicle information stored in the storage chip into a radio frequency signal, activating a communication state between the transcoding component and the storage chip, acquiring parameter information of the vehicle, converting the parameter information into a graphic code form, and displaying the graphic code form in a graphic code display area;
at the moment, the vehicle driver holds the electronic license plate to slowly pass through the vicinity of the recognition device of the electronic license plate.
In other embodiments, if the radio frequency signal transmitted by the radio frequency identification data chip is not received by the identification device of the electronic license plate, the communication states of the dual-mode bluetooth communication component, the transcoding component and the storage chip can be simultaneously activated and executed.
In order to cooperate with the identification device, the electronic license plate further comprises a wireless signal receiver which is in communication connection with the transcoding component and is used for receiving a feedback signal with a specific frequency, which is sent by the identification device of the electronic license plate.
Referring next to fig. 3, a schematic diagram of an embodiment of a recognition device for use with an electronic license plate of the present invention is shown.
The identification device comprises a radio frequency identification reader-writer, a Bluetooth communication assembly and at least one display assembly, wherein the radio frequency identification reader-writer is used for receiving radio frequency signals transmitted by the radio frequency identification data chip and displaying vehicle parameter information corresponding to the radio frequency signals on the display assembly;
the display component is used for judging whether parameter information is received within preset time; if the parameter information is not received, activating the Bluetooth communication assembly;
the Bluetooth communication assembly sends a communication state feedback signal to the electronic license plate, the electronic license plate activates the dual-mode Bluetooth communication assembly of the electronic license plate, and the communication state of the dual-mode Bluetooth communication assembly and the storage chip is started.
At the moment, the electronic license plate and the recognition device do not perform data communication in an RFID mode any more, but start Bluetooth communication.
In this embodiment, the identification apparatus further includes an antenna assembly, when both the display assembly and the bluetooth communication assembly do not respond when time is out, the antenna assembly sends a feedback signal of a specific frequency to the electronic license plate, and the electronic license plate activates the transcoding assembly, so that the transcoding assembly communicates with a storage chip and obtains parameter information of the vehicle, converts the parameter information into a graphic code form, and displays the graphic code in the graphic code display area.
As a more preferable embodiment, the timing of the graphic code displayed in the graphic code display area is changed.
Of course, in another embodiment, when the display module does not receive the parameter information within the predetermined time, the antenna module sends a feedback signal with a specific frequency to the electronic license plate, and the electronic license plate activates the transcoding module, so that the transcoding module communicates with the storage chip and obtains the parameter information of the vehicle, and converts the parameter information into a graphic code form to be displayed in the graphic code display area.
Therefore, the recognition device further comprises a code scanning recognition component for recognizing the graphic code displayed by the electronic license plate in the graphic code display area.
At this moment, when the vehicle approaches the recognition device, a vehicle owner can approach the electronic license plate to the code scanning recognition component of the recognition device based on the prompt of the electronic license plate, such as whether a graphic code form appears or not, so that vehicle recognition is completed, and the problems that the vehicle cannot recognize, cannot pay, cannot communicate and the like when an RFID communication mode fails or even when a Bluetooth communication mode fails are avoided.
Fig. 4 is a simple flowchart of the actual usage method of the electronic license plate.
In fig. 4, the electronic license plate and the recognition device communicate with each other preferentially in an RFID manner; if the RFID mode has a fault, starting a Bluetooth communication mode; if the Bluetooth communication mode also has a response time-out phenomenon, the antenna assembly is activated to send out a feedback signal of a specific frequency, and the transcoding assembly is started.
In this embodiment, the code scanning identification component includes at least two image capturing lenses. And the two graphic shooting lenses respectively recognize the graphic code display areas of the electronic license plate in sequence according to the distance change of the electronic license plate from the recognition device. This configuration is because the parameters of the two image capturing lenses described in this embodiment, such as pixels, focal lengths, capturing distances, etc., are different, and can adapt to the changes of different environments.
In addition, the electronic license plate can be placed in a range which can be reached by a vehicle owner, and is charged through a data interface of an external wiring without being fixedly installed at a certain specific position.
It should be particularly noted that the electronic license plate described in this embodiment uses an active high-frequency radio frequency card, and the RFID read-write distance is long, so that the sequence of the above manner is determined based on the characteristics of the active high-frequency radio frequency card, the bluetooth transmission, and the code scanning identification distance. After the vehicle approaches the identification device to reach a certain range, starting RFID communication detection; if the communication is not correctly carried out, the communication mode is changed into other two modes along with the further approaching of the distance.
Therefore, the electronic license plate of the embodiment is also provided with a power supply assembly, and the power supply assembly is provided with a detachable vehicle-mounted charging interface and used for supplying power to or charging the power supply assembly of the electronic license plate, so that energy is supplied to the active high-frequency radio frequency card and other assemblies, and long-distance reading and writing are realized. The electronic license plate can be realized through a programmable logic controller, so that various functional instructions can be automatically executed.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
Claims (9)
1. An electronic license plate adopting a radio frequency identification technology is provided with a memory chip in the electronic license plate, wherein the memory chip stores parameter information of a vehicle, and the parameter information at least comprises a registered license plate number of the vehicle;
the method is characterized in that:
the electronic license plate further includes:
the radio frequency identification data chip is in communication connection with the storage chip;
the radio frequency state feedback component detects the communication connection state of the radio frequency identification data chip and the storage chip and/or the data transmission feedback state of the radio frequency identification data chip; the dual-mode Bluetooth communication component is used for starting or closing the communication state with the storage chip based on the detection result of the radio frequency state feedback component;
the transcoding component comprises at least one graphic code display area, and when the detection result of the radio frequency state feedback component is abnormal, the transcoding component is communicated with a storage chip and acquires the parameter information of the vehicle, converts the parameter information into a graphic code form and displays the graphic code form in the graphic code display area;
wherein, the detection result of the radio frequency state feedback component is abnormal, which includes one or the combination of the following conditions: the radio frequency identification data chip and the storage chip can not establish data communication;
the radio frequency identification data chip cannot convert the vehicle information stored by the storage chip into a radio frequency signal; the radio frequency signals transmitted by the radio frequency identification data chip cannot be received by the identification device of the electronic license plate.
2. The electronic license plate of claim 1, wherein if the detection result of the radio frequency state feedback component is abnormal, the communication state of the dual-mode Bluetooth communication component and the storage chip is started.
3. The electronic license plate of claim 1, wherein the radio frequency identification data chip is an active high frequency radio frequency card.
4. The electronic license plate of claim 1, wherein the dual-mode bluetooth communication assembly has a classic bluetooth module and a BLE bluetooth module built therein.
5. The electronic license plate of claim 1, further comprising a wireless signal receiver for receiving a feedback signal of a specific frequency from the identification device of the electronic license plate.
6. The electronic license plate of claim 5, the wireless signal receiver communicatively coupled to the transcoding component.
7. An identification device of an electronic license plate according to any one of claims 1-4, said identification device comprising a radio frequency identification reader, a Bluetooth communication module and at least one display module, characterized in that:
the radio frequency identification reader-writer is used for receiving the radio frequency signals transmitted by the radio frequency identification data chip and displaying vehicle parameter information corresponding to the radio frequency signals on the display component;
the display component is used for judging whether parameter information is received within preset time; if the parameter information is not received, activating the Bluetooth communication assembly;
the Bluetooth communication assembly sends a communication state feedback signal to the electronic license plate, the electronic license plate activates the dual-mode Bluetooth communication assembly of the electronic license plate, and the communication state of the dual-mode Bluetooth communication assembly and the storage chip is started.
8. The identification device of claim 7, further comprising an antenna component, when the display component and the Bluetooth communication component do not respond after time-out, the antenna component sends a feedback signal with a specific frequency to the electronic license plate, and the electronic license plate activates the transcoding component, so that the transcoding component communicates with a storage chip and obtains parameter information of the vehicle, converts the parameter information into a graphic code form, and displays the graphic code form in the graphic code display area.
9. The identification device of claim 7, further comprising a code scanning identification component for identifying the graphic code displayed on the electronic license plate in the graphic code display area.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911003245.9A CN110920531B (en) | 2019-10-18 | 2019-10-18 | Electronic license plate adopting radio frequency identification technology |
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| CN201911003245.9A CN110920531B (en) | 2019-10-18 | 2019-10-18 | Electronic license plate adopting radio frequency identification technology |
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| CN110920531A CN110920531A (en) | 2020-03-27 |
| CN110920531B true CN110920531B (en) | 2021-03-30 |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1216332C (en) * | 2003-01-24 | 2005-08-24 | 东南大学 | Wireless intelligent electronic vehicle license plate system |
| CN201062024Y (en) * | 2007-02-16 | 2008-05-21 | 上海永久股份有限公司 | RF recognition electronic license plate for transportation vehicles |
| KR20100068527A (en) * | 2008-12-15 | 2010-06-24 | 곽태진 | Lincence plate tracking car via rfid and gps |
| CN102152764B (en) * | 2011-04-08 | 2012-08-22 | 江苏怡和科技股份有限公司 | Visual electronic license plate system |
| GB201107559D0 (en) * | 2011-05-06 | 2011-06-22 | Harkes Erik | EC-tag |
| US9852636B2 (en) * | 2012-05-18 | 2017-12-26 | International Business Machines Corproation | Traffic event data source identification, data collection and data storage |
| US20150221140A1 (en) * | 2014-02-04 | 2015-08-06 | Gilbert Eid | Parking and tollgate payment processing based on vehicle remote identification |
| CN104527567B (en) * | 2014-12-12 | 2017-03-22 | 深圳楼兰辉煌科技有限公司 | Automobile intelligent key system and using method thereof on basis of bluetooth low energy (BLE) |
| GB2544060A (en) * | 2015-11-03 | 2017-05-10 | Ersal Mehmet Ahmet | Vehicle authentication system |
| CN106864391A (en) * | 2016-12-30 | 2017-06-20 | 浩宇天地（天津）科技有限公司 | A kind of vehicle identification system based on REID |
| CN107909378B (en) * | 2017-12-07 | 2022-01-11 | 泰康保险集团股份有限公司 | Vehicle information auditing method and device, storage medium and electronic equipment |
| CN208240198U (en) * | 2018-05-11 | 2018-12-14 | 西安艾润物联网技术服务有限责任公司 | Car license recognition equipment |
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