CN113709212A - Vehicle fake plate detection system and method based on Internet of vehicles - Google Patents

Vehicle fake plate detection system and method based on Internet of vehicles Download PDF

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Publication number
CN113709212A
CN113709212A CN202110875514.1A CN202110875514A CN113709212A CN 113709212 A CN113709212 A CN 113709212A CN 202110875514 A CN202110875514 A CN 202110875514A CN 113709212 A CN113709212 A CN 113709212A
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vehicle
cloud
module
license plate
digital watermark
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CN113709212B (en
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李平
李鑫
周吉祥
廖正赟
彭金辉
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Zhengzhou Xinda Jiean Information Technology Co Ltd
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Zhengzhou Xinda Jiean Information Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/16—Program or content traceability, e.g. by watermarking
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • 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
    • G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0894—Escrow, recovery or storing of secret information, e.g. secret key escrow or cryptographic key storage
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3263—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving certificates, e.g. public key certificate [PKC] or attribute certificate [AC]; Public key infrastructure [PKI] arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • 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

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Abstract

The invention provides a vehicle fake license plate detection system and method based on the Internet of vehicles. The system comprises: the system comprises a cloud traffic management server, at least one acquisition end and at least one vehicle end; the cloud traffic management server comprises a cloud digital watermark generating module; the acquisition end comprises a camera module, an acquisition end short-distance direct communication module, an acquisition end digital watermark identification module and an acquisition end processing module; the vehicle end comprises a vehicle end short-distance direct communication module; the cloud digital watermark generating module is used for generating a digital watermark and embedding the digital watermark into the common vehicle license plate image to form a safe vehicle license plate image; the acquisition end digital watermark identification module is used for identifying and/or extracting the digital watermark embedded in the vehicle license plate image; the acquisition end processing module is used for collecting the vehicle number plate image and the vehicle identification code, and verifying whether the vehicle number plate is a legal safe vehicle number plate or not and whether the vehicle number plate is a fake plate or not based on the digital watermark, the vehicle number plate image and the vehicle identification code.

Description

Vehicle fake plate detection system and method based on Internet of vehicles
Technical Field
The invention relates to the technical field of license plate recognition and vehicle networking, in particular to a vehicle fake plate detection system and method based on the vehicle networking.
Background
Fake-licensed vehicles generally refer to motor vehicles that use counterfeit, altered vehicle numbers, use the numbers of other vehicles, or use deception and bribing means to obtain the vehicle numbers. The fake-license behavior disturbs the public safety management and control of public security authorities, the national economic order, the transportation market operational order, the manufacturing of social instability factors and the serious infringement of the legal interests of original legal vehicle owners, and the harm is not a little worth.
The existing anti-fake license plate technical scheme mainly comprises a scheme of adding a visible light or a recognizable anti-fake film and anti-fake patterns under a special illumination condition on a license plate entity, a scheme of adding additional information such as two-dimensional codes, three-dimensional codes and the like on an additional area on the license plate, a scheme of calculating and comparing the speed and/or time according to the information of the same license plate collected at different empty positions and the like.
However, the existing scheme does not apply the digital watermarking technology to the vehicle number plate to detect the vehicle fake plate. How to realize the detection of the vehicle fake plate by combining the digital watermarking technology under the background of the great development of the current Internet of vehicles technology is an urgent problem to be solved.
Disclosure of Invention
Under the background of the great development of the current Internet of vehicles technology, in order to realize the detection of the vehicle fake license plate by combining the digital watermarking technology, the invention provides a vehicle fake license plate detection system and method based on the Internet of vehicles.
In one aspect, the present invention provides a vehicle fake plate detection system based on the internet of vehicles, including: the system comprises a cloud traffic management server, at least one acquisition end and at least one vehicle end; the cloud traffic management server comprises a cloud digital watermark generating module; the acquisition end comprises a camera module, an acquisition end short-distance direct communication module, an acquisition end digital watermark identification module and an acquisition end processing module; the vehicle end comprises a vehicle end short-distance direct communication module; the acquisition end is in communication connection with the vehicle end through the acquisition end short-distance direct communication module and the vehicle end short-distance direct communication module;
the cloud digital watermark generating module is used for generating a digital watermark and embedding the digital watermark into a common vehicle license plate image to form a safe vehicle license plate image; the digital watermark comprises a first cloud digital abstract of a common vehicle license plate image, a vehicle identification code corresponding to the vehicle license plate when the vehicle license plate is registered in a vehicle management department, and a first cloud digital signature of the first cloud digital abstract and the vehicle identification code;
the camera module is used for shooting the vehicle number plate at the vehicle end in real time to obtain a vehicle number plate image;
the digital watermark identification module at the acquisition end is used for identifying and/or extracting the digital watermark embedded in the vehicle license plate image;
the acquisition end processing module is used for collecting the vehicle number plate image of the vehicle end acquired by the camera module and the vehicle identification code of the vehicle end acquired by the acquisition end short-distance direct communication module; the license plate verification system is used for verifying whether the license plate is a legal safe license plate or not and whether the license plate is a fake license plate or not based on the digital watermark, the image of the license plate and the vehicle identification code, and specifically comprises the following steps:
calling the acquisition terminal digital watermark identification module to attempt to identify the digital watermark contained in the vehicle license plate image acquired by the camera module; if the digital watermark identification fails, judging that the vehicle license plate corresponding to the vehicle license plate image is an illegal safe vehicle license plate, and then generating a vehicle license plate digital watermark identification failure message; if the digital watermark is successfully identified, calling the acquisition end digital watermark identification module to extract digital watermark information contained in the vehicle license plate image, and acquiring a first cloud digital abstract, the vehicle identification code and a first cloud digital signature; then, checking the first cloud digital signature according to the first cloud digital abstract and the vehicle identification code; if the signature verification fails, judging that the vehicle number plate corresponding to the vehicle number plate image is an illegal safe vehicle number plate, and generating a first cloud digital signature verification failure message; if the verification is successful, the vehicle number plate image is judged to be a complete and non-tampered vehicle number plate and is a legal and safe vehicle number plate issued by the cloud traffic management server; then comparing the vehicle identification code extracted from the digital watermark with the vehicle identification code acquired by the acquisition end short-distance direct communication module, and if the comparison is the same, generating a message that the vehicle number plate identification verification is successful and the plate is not fake; if the comparison is different, the vehicle number plate is generated as a fake plate message.
Further, the cloud traffic management server further comprises a cloud security module, the acquisition end further comprises an acquisition end security module, and the vehicle end further comprises a vehicle end security module;
the cloud end safety module, the acquisition end safety module and the vehicle end safety module are respectively used for providing a password service function and a safety storage function for the cloud end traffic management server, the acquisition end and the vehicle end;
the vehicle end is characterized in that the vehicle identification code of the vehicle end is arranged in the safe storage area of the vehicle end safety module before the vehicle leaves a factory by a vehicle production party, the vehicle identification code is arranged in the safe storage area of the vehicle end safety module, and only a read-only function is provided, so that the vehicle identification code arranged in the safe storage area of the vehicle end safety module cannot be changed by a vehicle using party.
Further, the cloud traffic management server further comprises a digital certificate module;
the digital certificate module is used for generating and storing public key certificates for the cloud traffic management server and the acquisition end respectively; the digital certificate module writes the public key certificate of the acquisition end and the public key certificate of the cloud traffic management server into the acquisition end safety module in an off-line or on-line mode; the cloud traffic management server and the acquisition end respectively store private keys corresponding to public keys in corresponding public key certificates; the private key of the cloud traffic management server is stored in the digital certificate module or the safe storage area of the cloud safety module; and the private key of the acquisition end is stored in the safe storage area of the acquisition end safety module.
Further, the digital certificate module is also used for generating and storing a public key certificate for the vehicle end; the digital certificate module writes the public key certificate of the vehicle end and the public key certificate of the cloud traffic management server into the vehicle end safety module in an off-line or on-line mode; the vehicle end stores a private key corresponding to a public key in a corresponding public key certificate; and the private key of the vehicle end is stored in the safe storage area of the vehicle end safety module.
Furthermore, the cloud security module, the collection end security module and the vehicle end security module are all security intelligent chips.
Further, the commercial cryptographic algorithm supported by the secure intelligent chip comprises one or more of SM1, SM2, SM3, SM4 and SM9, and the supported international common cryptographic algorithm comprises one or more of 3DES, AES, RSA, SHA-1 and SHA-256.
Further, the secure intelligent chip supports storing digital certificates; the safety intelligent chip provides a safety storage area and supports the safety storage of important information; the secure smart chip supports generation of random numbers.
Further, the digital certificate module also maintains a certificate revocation list and provides a certificate revocation list query function.
Furthermore, the acquisition end also comprises an acquisition end positioning module;
the acquisition end positioning module is used for acquiring the position information of the acquisition end;
correspondingly, the collecting end processing module is further configured to collect the position information of the collecting end obtained from the collecting end positioning module and the time information of the collecting end when the collecting end collects the vehicle number plate image, the vehicle identification code and the position information of the collecting end, and send the vehicle number plate image, the vehicle identification code, the position information of the collecting end and the time information to the cloud traffic management server;
correspondingly, the cloud traffic management server is further used for carrying out vehicle positioning, vehicle tracking and/or vehicle management according to the vehicle number plate image, the vehicle identification code, the position information of the acquisition end and the time information.
Further, the acquisition-end short-distance direct communication module and the vehicle-end short-distance direct communication module are both C-V2X PC5 short-distance direct communication modules.
Further, when a plurality of collecting terminals are provided, the cloud traffic control server comprehensively calculates the position of the vehicle represented by the vehicle terminal at the corresponding moment according to the vehicle number plate image, the vehicle identification code, the position information of the collecting terminal and the time information of the certain vehicle terminal reported by different collecting terminals;
when the distance value between two acquisition ends in different geographic positions exceeds the product of the difference value of the time of the vehicle end before and after the two acquisition ends and the maximum driving speed of the vehicle end allowed by a vehicle management department on a corresponding driving road section, the cloud traffic management server judges that the corresponding vehicle number plate is fake or the corresponding vehicle end vehicle speed is violated, and then informs the traffic management department of further verification and/or processing.
The camera module comprises a first camera, a second camera, a third camera, a vehicle number plate identification module, a vehicle number plate synthesis module, a light sensing module and a light supplementing module;
the first camera is used for collecting real-time video information of the vehicle end and has an infrared camera shooting function;
the second camera is a long-focus camera and is used for photographing the vehicle number plate at the vehicle end;
the third camera is a wide-angle camera and is used for photographing the vehicle number plate at the vehicle end;
the vehicle license plate recognition module is used for recognizing the video information collected by the first camera in real time, and calling the second camera and the third camera to photograph the vehicle license plate if a vehicle license plate image is recognized in the video information;
the vehicle license plate synthesizing module is used for calculating and synthesizing the vehicle license plate images shot by the second camera and the third camera respectively to obtain clear and high-quality vehicle license plate images;
the light sensing module is used for sensing whether the intensity of light is proper or not when the second camera and the third camera take a picture, and then calling the light supplementing module to supplement light according to the requirement;
and the light supplementing module is used for supplementing light when the second camera and the third camera take photos.
On the other hand, the invention provides a vehicle fake plate detection method based on the Internet of vehicles, which comprises the following steps:
step 1: the method comprises the steps that a collecting end collects vehicle number plate images of a vehicle end in real time and obtains a vehicle identification code of the vehicle end;
step 2: the acquisition end requests a digital watermark key from the cloud traffic management server; after receiving the request, the cloud traffic management server encrypts the digital watermark key by using a private key of the cloud traffic management server and sends the encrypted digital watermark key to the acquisition end; the acquisition end decrypts by adopting a public key of the cloud traffic management server to obtain the digital watermark key;
and step 3: the acquisition end uses the digital watermark key to try to identify the digital watermark contained in the vehicle license plate image: if the digital watermark identification fails, judging that the vehicle license plate corresponding to the vehicle license plate image is an illegal safe vehicle license plate, and generating a vehicle license plate digital watermark identification failure message; if the digital watermark is successfully identified, extracting the digital watermark contained in the vehicle license plate image, and obtaining a first cloud digital abstract, a vehicle identification code and a first cloud digital signature from the digital watermark;
and 4, step 4: the acquisition end checks and signs the first cloud digital signature acquired from the digital watermark according to the first cloud digital abstract and the vehicle identification code acquired from the digital watermark: if the signature verification fails, judging that the vehicle number plate corresponding to the vehicle number plate image is an illegal safe vehicle number plate, and generating a first cloud digital signature verification failure message; if the verification is successful, the vehicle number plate image is judged to be a complete and non-tampered vehicle number plate and is a legal and safe vehicle number plate issued by the cloud traffic management server;
and 5: the acquisition end compares the vehicle identification code obtained from the digital watermark with the vehicle identification code obtained in the step 1: if the comparison is the same, generating a message that the vehicle number plate identification verification is successful and the plate is not fake; if the comparison is different, the vehicle number plate is generated as a fake plate message.
Further, after the acquisition end generates the vehicle license plate digital watermark identification failure message or the first cloud digital signature verification failure message, the acquisition end informs a vehicle management department of checking whether the integrity of the vehicle license plate at the vehicle end is damaged, whether the vehicle license plate is falsified, falsified and imitated or whether the vehicle license plate is a safe vehicle license plate issued by the vehicle management department;
after the acquisition end generates a message that the vehicle license plate is a fake license plate, the acquisition end informs a vehicle management department or acquisition end equipment to check and process a corresponding vehicle end; the acquisition terminal device comprises but is not limited to a high-speed bayonet device and/or an intelligent robot with a traffic management function and the like.
Further, the collection end further sends the vehicle number plate image, the vehicle identification code and the corresponding vehicle number plate digital watermark identification failure message, the first cloud digital signature verification failure message or the vehicle number plate which is generated by the collection end as a fake plate message to the cloud traffic management server, so that the cloud traffic management server can comprehensively record, count and/or analyze and judge the conditions of the corresponding vehicle end and the corresponding vehicle number plate and inform a traffic management department of taking corresponding measures.
Further, the method further comprises: before the acquisition end sends the vehicle number plate image, the vehicle identification code and a corresponding acquisition end returned cloud end message to the cloud end traffic management server, signing the vehicle number plate image, the vehicle identification code and the corresponding acquisition end returned cloud end message to obtain a first acquisition end digital signature; then, the vehicle number plate image, the vehicle identification code and a corresponding acquisition end return cloud end message and the first acquisition end digital signature are sent to the cloud end traffic management server;
the cloud traffic management server checks the first acquisition end digital signature based on the received vehicle license plate image, the vehicle identification code and the corresponding acquisition end returned cloud information: if the signature verification fails, the cloud traffic management server returns a first acquisition end digital signature verification failure message to the acquisition end; if the verification is successful, the vehicle license plate image sent by the acquisition end, the vehicle identification code and the corresponding cloud end returned message returned by the acquisition end are judged to be complete and not to be tampered, and the identity of the acquisition end is real.
The vehicle license plate digital watermark identification failure message, the first cloud digital signature verification failure message and the vehicle license plate fake license plate message generated by the acquisition end are collectively called an acquisition end return cloud end message.
Further, before vehicle fake-license detection is carried out on the safety vehicle license plate, the method further comprises the following steps: generating a safe vehicle number plate and installing the safe vehicle number plate at the vehicle end;
wherein, the process of generating the safe vehicle license plate includes:
step A1: the cloud traffic management server generates a common vehicle license plate image according to the vehicle identification code; generating a first cloud digital abstract based on the common vehicle license plate image, and generating a first cloud digital signature based on the first cloud digital abstract and the vehicle identification code; the cloud traffic management server generates a digital watermark key; the digital watermark key is used as a parameter when the digital watermark is inserted and extracted;
step A2: the cloud traffic management server takes the first cloud digital abstract, the vehicle identification code and the first cloud digital signature as parameters to generate a digital watermark, and then the digital watermark is embedded into a common vehicle license plate image in combination with the digital watermark key to generate the safe vehicle license plate image;
step A3: and generating a safe vehicle number plate according to the safe vehicle number plate image.
The invention has the beneficial effects that:
firstly, digital watermark information is embedded into a vehicle number plate image so as to generate a safe vehicle number plate, wherein the digital watermark information comprises abstract information of a common vehicle number plate image, a vehicle identification code corresponding to the vehicle number plate when the vehicle number plate is registered in a vehicle management department and signature information obtained after the cloud traffic management server carries out digital signature on the digital abstract and the vehicle identification code. Through the verification of the abstract information of the vehicle license plate image and the signature information of the vehicle identification code, whether the image content of the safe vehicle license plate is complete or not and whether the image content is tampered or not can be determined, and whether the image content is signed by the cloud traffic management server or not can be confirmed. The problem of harm of fake plate and the like caused by illegal altering, tampering and/or copying of the vehicle license plate image is solved from the source, because once the safe vehicle license plate image is illegally altered, tampered and/or copied, the illegal operations can be verified;
secondly, the vehicle identification code information contained in the digital watermark is compared with the vehicle identification code information which is arranged in a factory and can only be read by a vehicle user when the vehicle leaves the factory, so that whether the vehicle license plate is a fake plate vehicle or not can be determined;
thirdly, when the verification result of the vehicle license plate identification verification or the comparison result of the vehicle identification code information is in a problem, a vehicle management department can be timely informed to check whether the integrity of the safe vehicle license plate is damaged, tampered, forged or not and/or check the fake license plate behavior of the vehicle license plate;
fourthly, when the acquisition end and the cloud traffic management server communicate with each other, the communication information of the two parties is signed and verified, so that the integrity of the information and the authenticity of the identity of the sender in the communication process of the two parties are ensured.
Drawings
Fig. 1 is a schematic structural diagram of a vehicle fake-license detecting system based on the internet of vehicles according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a process for generating a safe vehicle license plate according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a digital watermark extraction process provided by an embodiment of the present invention;
fig. 4 is a second schematic diagram of an architecture of a vehicle fake-license detecting system based on the internet of vehicles according to the embodiment of the present invention;
fig. 5 is a third schematic view of an architecture of a vehicle fake-license detecting system based on the internet of vehicles according to the embodiment of the present invention;
fig. 6 is a fourth schematic view of an architecture of a vehicle fake-license detecting system based on the internet of vehicles according to an embodiment of the present invention;
fig. 7 is a fifth schematic view of an architecture of a vehicle fake-license detecting system based on the internet of vehicles according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, an embodiment of the present invention provides a vehicle fake plate detection system based on an internet of vehicles, including a cloud traffic management server, at least one collection terminal, and at least one vehicle terminal; the cloud traffic management server comprises a cloud digital watermark generating module; the acquisition end comprises a camera module, an acquisition end short-distance direct communication module, an acquisition end digital watermark identification module and an acquisition end processing module; the vehicle end comprises a vehicle end short-distance direct communication module; the acquisition end is in communication connection with the vehicle end through the acquisition end short-distance direct communication module and the vehicle end short-distance direct communication module; the cloud traffic management server is in communication connection with the acquisition end;
the cloud digital watermark generating module is used for generating a digital watermark and embedding the digital watermark into a common vehicle license plate image to form a safe vehicle license plate image, as shown in fig. 2; the digital watermark comprises a first cloud digital abstract of a common vehicle license plate image, a vehicle identification code corresponding to the vehicle license plate when the vehicle license plate is registered in a vehicle management department, and a first cloud digital signature of the first cloud digital abstract and the vehicle identification code;
the camera module is used for shooting the vehicle number plate at the vehicle end in real time to obtain a vehicle number plate image;
the digital watermark identification module at the acquisition end is used for identifying and/or extracting the digital watermark embedded in the vehicle license plate image; as shown in fig. 3.
The acquisition end processing module is used for collecting the vehicle number plate image of the vehicle end acquired by the camera module and the vehicle identification code of the vehicle end acquired by the acquisition end short-distance direct communication module; the license plate verification system is used for verifying whether the license plate is a legal safe license plate or not and whether the license plate is a fake license plate or not based on the digital watermark, the image of the license plate and the vehicle identification code, and specifically comprises the following steps:
calling the acquisition terminal digital watermark identification module to attempt to identify the digital watermark contained in the vehicle license plate image acquired by the camera module; if the digital watermark identification fails, judging that the vehicle license plate corresponding to the vehicle license plate image is an illegal safe vehicle license plate, and then generating a vehicle license plate digital watermark identification failure message; if the digital watermark is successfully identified, calling the acquisition end digital watermark identification module to extract digital watermark information contained in the vehicle license plate image, and acquiring a first cloud digital abstract, the vehicle identification code and a first cloud digital signature; then, checking the first cloud digital signature according to the first cloud digital abstract and the vehicle identification code; if the signature verification fails, judging that the vehicle number plate corresponding to the vehicle number plate image is an illegal safe vehicle number plate, and generating a first cloud digital signature verification failure message; if the verification is successful, the vehicle number plate image is judged to be a complete and non-tampered vehicle number plate and is a legal and safe vehicle number plate issued by the cloud traffic management server; then comparing the vehicle identification code extracted from the digital watermark with the vehicle identification code acquired by the acquisition end short-distance direct communication module, and if the comparison is the same, generating a message that the vehicle number plate identification verification is successful and the plate is not fake; if the comparison is different, the vehicle number plate is generated as a fake plate message.
Specifically, the vehicle management department refers to a public security traffic management department, and a specific responsible department is subject to the provision of corresponding laws and regulations;
the vehicle license plate is commonly called as a license plate and a license plate, is a plate material respectively hung in front of and behind the vehicle, is usually made of aluminum, iron sheet, plastic or paper, and is marked with the registration number, registration area or other related information of the vehicle;
the Vehicle Identification Number (or called frame Number, or VIN for short) is a group consisting of a plurality of letters and/or numbers, is used for a group of unique numbers on the automobile, and can identify the manufacturer, the engine, the chassis serial Number and other performance data of the automobile;
and the vehicle management department stores the vehicle number plate and the vehicle identification code corresponding to the vehicle number plate when the vehicle number plate is registered in the vehicle management department in the cloud traffic management server for later use.
As an implementation manner, the camera module specifically includes a first camera, a second camera, a third camera, a vehicle number plate recognition module, a vehicle number plate synthesis module, a light sensing module and a light supplementing module; the first camera is used for collecting real-time video information of the vehicle end and has an infrared camera shooting function; the second camera is a long-focus camera and is used for photographing the vehicle number plate at the vehicle end; the third camera is a wide-angle camera and is used for photographing the vehicle number plate at the vehicle end; the vehicle license plate recognition module recognizes the video information collected by the first camera in real time, and if the image information of the vehicle license plate is recognized in the video information, the second camera and the third camera are called to photograph the safe vehicle license plate; the second camera and the third camera can dynamically change shooting angles under the dispatching of the vehicle license plate identification module to aim at the vehicle end, and then can automatically adjust focal lengths to provide better shooting quality; the vehicle license plate synthesizing module is used for calculating and synthesizing the vehicle license plate images shot by the second camera and the third camera respectively to obtain clear and high-quality vehicle license plate images; the light sensing module is used for sensing whether the intensity of light is proper or not when the second camera and the third camera take a picture, and calling the light supplementing module to supplement light according to the requirement; and the light supplementing module is used for supplementing light when the second camera and the third camera take photos.
In practical application, the first camera adopts an ultra-high-definition camera or a full-high-definition camera, has a resolution of 1080P (1920 x 1080) or more, is mainly used for shooting a video in a driving process, and is provided for a vehicle license plate identification module to identify a vehicle license plate; the first camera can also adopt a binocular camera; the second camera and the third camera adopt ultra-high resolution lenses (such as 4500 ten thousand pixels and more) and are used for shooting pictures of the vehicle license plate and generating image information of the vehicle license plate.
As an implementation manner, the acquisition-side short-distance direct communication module and the vehicle-side short-distance direct communication module are both C-V2X PC5 short-distance direct communication modules, and the acquisition-side short-distance direct communication module and the vehicle-side short-distance direct communication module are in communication connection within the communication range of the C-V2X PC5 short-distance direct communication interface. C in the C-V2X refers to Cellular (Cellular), the C-V2X is a vehicle wireless communication technology formed by evolution of Cellular communication technologies such as 3G/4G/5G, and the like, and comprises two communication interfaces: one is a short-distance direct communication interface (PC 5) between vehicles, people and roads, and the other is a communication interface (Uu) between a terminal and a base station, which can realize reliable communication in a long distance and a wider range. C-V2X is a communication technology based on the 3GPP Global unified Standard, including LTE-V2X and 5G-V2X, and from the technical evolution perspective, LTE-V2X supports a smooth evolution to 5G-V2X.
Example 2
On the basis of the above embodiment, as shown in fig. 4, the difference between the embodiment of the present invention and embodiment 1 is that in the embodiment of the present invention, the cloud traffic management server further includes a cloud security module, the acquisition end further includes an acquisition end security module, and the vehicle end further includes a vehicle end security module;
the cloud end safety module, the acquisition end safety module and the vehicle end safety module are respectively used for providing a password service function and a safety storage function for the cloud end traffic management server, the acquisition end and the vehicle end;
the vehicle end is characterized in that the vehicle identification code of the vehicle end is arranged in the safe storage area of the vehicle end safety module before the vehicle leaves a factory by a vehicle production party, the vehicle identification code is arranged in the safe storage area of the vehicle end safety module, and only a read-only function is provided, so that the vehicle identification code arranged in the safe storage area of the vehicle end safety module cannot be changed by a vehicle using party. The acquisition end acquires the vehicle identification code from the vehicle end through communication between the acquisition end short-distance direct communication module and the vehicle end short-distance direct communication module.
Specifically, a safe storage area is respectively arranged in the cloud end safety module, the acquisition end safety module and the vehicle end safety module; the secure storage area may be used to store digital certificates, private keys, and other important information and data; the cryptographic service functions include, but are not limited to, generating random numbers, digital signature operations, digital signature verification operations, encryption and decryption operations, generating session keys, and generating digital digests.
As an implementation manner, the cloud security module, the acquisition end security module and the vehicle end security module are all security intelligent chips, and commercial cryptographic algorithms supported by the security intelligent chips include but are not limited to one or more of SM1, SM2, SM3, SM4 and SM9, and international common cryptographic algorithms supported by the security intelligent chips include but are not limited to one or more of 3DES, AES, RSA, SHA-1 and SHA-256; the secure intelligent chip supports storing a digital certificate; the safety intelligent chip provides a safety storage area and supports the safety storage of important information; the safety intelligent chip supports generation of random numbers; the digital certificate module also maintains a certificate revocation list and provides a certificate revocation list query function.
Example 3
On the basis of the foregoing embodiment 2, as shown in fig. 5, in an embodiment of the present invention, the cloud traffic management server further includes a digital certificate module; the digital certificate module is used for generating and storing public key certificates for the cloud traffic management server and the acquisition end respectively; the digital certificate module writes the public key certificate of the acquisition end and the public key certificate of the cloud traffic management server into the acquisition end safety module in an off-line or on-line mode; the cloud traffic management server and the acquisition end respectively store private keys corresponding to public keys in corresponding public key certificates; the private key of the cloud traffic management server is stored in the digital certificate module or the safe storage area of the cloud safety module; and the private key of the acquisition end is stored in the safe storage area of the acquisition end safety module.
Further, the digital certificate module is also used for generating and storing a public key certificate for the vehicle end; the digital certificate module writes the public key certificate of the vehicle end and the public key certificate of the cloud traffic management server into the vehicle end safety module in an off-line or on-line mode; the vehicle end stores a private key corresponding to a public key in a corresponding public key certificate; the private key of the vehicle end is stored in the safe storage area of the vehicle end safety module; this can make the car end also possess the ability of carrying out safe encryption communication with the high in the clouds traffic management server.
Example 4
On the basis of the above embodiments, as shown in fig. 6, in the embodiment of the present invention, the acquisition end further includes an acquisition end positioning module; the acquisition end positioning module is used for acquiring the position information of the acquisition end;
correspondingly, the collecting end processing module is used for collecting the vehicle number plate information of the vehicle end collected by the camera module and the vehicle identification code information of the vehicle end collected by the collecting end short-distance direct communication module, collecting the position information of the collecting end obtained by the collecting end positioning module and the time information of the collecting end when collecting the vehicle number plate image, the vehicle identification code and the position information of the collecting end, and sending the vehicle number plate image, the vehicle identification code, the position information of the collecting end and the time information to the cloud traffic management server;
correspondingly, the cloud traffic management server is further used for carrying out vehicle positioning, vehicle tracking and/or vehicle management according to the vehicle number plate image, the vehicle identification code, the position information of the acquisition end and the time information.
Specifically, the cloud traffic management server depicts the position, the historical driving track and the like of the vehicle represented by the currently shot vehicle end at the corresponding time according to the vehicle number plate image, the vehicle identification code, the position information of the acquisition end and the time information, so that the functions of vehicle positioning, vehicle tracking, vehicle management and the like are realized.
As an implementation manner, when a plurality of collecting terminals are provided, the cloud traffic management server comprehensively calculates the position of the vehicle represented by the vehicle terminal at the corresponding moment according to the vehicle number plate image, the vehicle identification code, the position information of the collecting terminal and the time information of the certain vehicle terminal reported by different collecting terminals;
when the distance value between two acquisition ends in different geographic positions exceeds the product of the difference value of the time of the vehicle end before and after the two acquisition ends and the maximum driving speed of the vehicle end allowed by a vehicle management department on a corresponding driving road section, the cloud traffic management server judges that the corresponding vehicle number plate is fake or the corresponding vehicle end vehicle speed is violated, and then informs the traffic management department of further verification and/or processing.
In the above embodiments, the installation mode of the collecting end includes a fixed mode and a movable mode; wherein the fixed type is that the acquisition end is installed at a fixed position, and the fixed position includes but is not limited to a traffic gate, a toll station and a road side; the mobile mode refers to that the acquisition end is arranged on the mobile equipment; the mobile device includes but is not limited to a smart phone and a special mobile terminal.
Further, when the collection end is movable, the camera module of the collection end is used for directly collecting and/or identifying the vehicle identification code printed and/or engraved at each place on the vehicle body of the vehicle end besides the vehicle number plate image of the vehicle end. For example, the camera module is directly used for shooting and identifying the vehicle identification code mark below the front windshield of the vehicle end or at the position of a vehicle body girder and the like to obtain the vehicle identification code of the vehicle end.
Further, as shown in fig. 7, when the collection end is mobile, the collection end further includes a collection end wireless communication module, and the collection end is in communication connection with the cloud traffic management server through a mobile communication network in a wireless communication manner, where the mobile communication network includes, but is not limited to, a 5G and/or 6G network.
In addition, the cloud traffic management server further comprises a vehicle number plate storage module; and the vehicle license plate storage module is used for storing the safe vehicle license plate image generated by the cloud digital watermark generation module for the cloud traffic management server to search.
The cloud traffic management server can also comprise a cloud digital watermark identification and verification module; and the cloud digital watermark identification and verification module is used for identifying, extracting and/or verifying the digital watermark embedded in the safe vehicle license plate.
It can be understood that in each embodiment of the invention, the vehicle number plate is divided into a common vehicle number plate and a safe vehicle number plate; the common vehicle number plate comprises one or more of a large-scale vehicle number plate, a trailer number plate, a small-scale vehicle number plate, an embassy vehicle number plate, a guinance vehicle number plate, a hong and ao inbound and outbound vehicle number plate, a coach vehicle number plate, a police vehicle number plate, a common motorcycle number plate, a light motorcycle number plate, an embassy motorcycle number plate, a guinance motorcycle number plate, a coach motorcycle number plate, a police motorcycle number plate, a low-speed vehicle number plate, a temporary driving number plate and an agricultural vehicle number plate; the safe vehicle license plate is a vehicle license plate generated after the digital watermark is embedded in a common vehicle license plate.
Example 5
The embodiment of the invention provides a vehicle fake plate detection method based on a vehicle networking, which comprises the following steps:
s101: the method comprises the steps that a collecting end collects vehicle number plate images of a vehicle end in real time and obtains a vehicle identification code of the vehicle end;
specifically, after the distance between the vehicle end and the acquisition end enters the camera shooting range of the camera module, the acquisition end shoots the vehicle number plate of the vehicle end in real time through the camera module to obtain a vehicle number plate image; the acquisition end obtains a vehicle identification code from the vehicle end through the acquisition end short-distance direct communication module;
s102: the acquisition end requests a digital watermark key from the cloud traffic management server; after receiving the request, the cloud traffic management server encrypts the digital watermark key by using a private key of the cloud traffic management server and sends the encrypted digital watermark key to the acquisition end; the acquisition end decrypts by adopting a public key of the cloud traffic management server to obtain the digital watermark key;
s103: the acquisition end uses the digital watermark key to try to identify the digital watermark contained in the vehicle license plate image: if the digital watermark identification fails, judging that the vehicle license plate corresponding to the vehicle license plate image is an illegal safe vehicle license plate, and generating a vehicle license plate digital watermark identification failure message; if the digital watermark is successfully identified, extracting the digital watermark contained in the vehicle license plate image, and obtaining a first cloud digital abstract, a vehicle identification code and a first cloud digital signature from the digital watermark;
specifically, if the digital watermark information is failed to be identified, it indicates that the digital watermark information is not contained in the vehicle license plate image or the digital watermark information is damaged and cannot be identified.
S104: the acquisition end checks and signs the first cloud digital signature acquired from the digital watermark according to the first cloud digital abstract and the vehicle identification code acquired from the digital watermark: if the signature verification fails, judging that the vehicle number plate corresponding to the vehicle number plate image is an illegal safe vehicle number plate, and generating a first cloud digital signature verification failure message; if the verification is successful, the vehicle number plate image is judged to be a complete and non-tampered vehicle number plate and is a legal and safe vehicle number plate issued by the cloud traffic management server;
s105: the acquisition end compares the vehicle identification code obtained from the digital watermark with the vehicle identification code obtained in the step 1: if the comparison is the same, generating a message that the vehicle number plate identification verification is successful and the plate is not fake; if the comparison is different, the vehicle number plate is generated as a fake plate message.
As an implementation manner, after the collecting end generates the vehicle license plate digital watermark identification failure message or the first cloud-end digital signature verification failure message, the collecting end informs a vehicle management department to check whether the integrity of the vehicle license plate at the vehicle end is damaged, whether the vehicle license plate is falsified and copied or whether the vehicle license plate is a safe vehicle license plate issued by the vehicle management department;
after the acquisition end generates a message that the vehicle license plate is a fake license plate, the acquisition end informs a vehicle management department or acquisition end equipment to check and process a corresponding vehicle end; the acquisition terminal device comprises but is not limited to a high-speed bayonet device and/or an intelligent robot with a traffic management function and the like.
As an implementation manner, the collecting end further sends the vehicle number plate image, the vehicle identification code, and a corresponding vehicle number plate digital watermark identification failure message, a first cloud digital signature verification failure message, or a vehicle number plate fake plate message generated by the collecting end to the cloud traffic management server, so that the cloud traffic management server comprehensively records, counts, and/or analyzes and judges the conditions of the corresponding vehicle end and vehicle number plate, and notifies a traffic management department to take corresponding measures. The corresponding measures include but are not limited to detaining illegal fake-licensed vehicles, attacking illegal persons who have made fake-licensed cards and false license plate numbers, and the like.
As an implementation manner, before the collecting end sends the vehicle number plate image, the vehicle identification code and the corresponding collecting end return cloud end message to the cloud end traffic management server, signing is carried out on the vehicle number plate image, the vehicle identification code and the corresponding collecting end return cloud end message to obtain a first collecting end digital signature; then, the vehicle number plate image, the vehicle identification code and a corresponding acquisition end return cloud end message and the first acquisition end digital signature are sent to the cloud end traffic management server;
the cloud traffic management server checks the first acquisition end digital signature based on the received vehicle license plate image, the vehicle identification code and the corresponding acquisition end returned cloud information: if the signature verification fails, the cloud traffic management server returns a first acquisition end digital signature verification failure message to the acquisition end; if the verification is successful, the vehicle license plate image sent by the acquisition end, the vehicle identification code and the corresponding cloud end returned message returned by the acquisition end are judged to be complete and not to be tampered, and the identity of the acquisition end is real.
The vehicle license plate digital watermark identification failure message, the first cloud digital signature verification failure message and the vehicle license plate fake license plate message generated by the acquisition end are collectively called an acquisition end return cloud end message.
As an implementation manner, before the vehicle fake-license plate detection is performed based on the safe vehicle number plate, the safe vehicle number plate is generated and installed at the vehicle end; before installing a safe vehicle number plate at a vehicle end, submitting vehicle information of the vehicle end to a vehicle management department and registering; the vehicle information includes, but is not limited to, a vehicle identification code; the specific steps for generating the safe vehicle license plate are as follows:
step A1, planning and designing the image pattern of the common vehicle license plate in advance by a vehicle management department; the vehicle user submits the vehicle information of the vehicle end to be branded to a vehicle management department, selects the specific number of the vehicle license plate and registers; the vehicle information includes a vehicle identification code; the vehicle management department refers to a public security traffic management department, and a specific responsible department takes the provisions of corresponding laws and regulations as the standard;
step A2, the cloud traffic control server generates a common vehicle license plate image according to the information; then, generating a first cloud digital abstract based on the common vehicle license plate image, and then generating a first cloud digital signature based on the first cloud digital abstract and vehicle identification code information corresponding to the vehicle license plate when the vehicle license plate is registered in a vehicle management department; the cloud traffic management server generates a digital watermark key; the digital watermark key is used as a parameter when the digital watermark is inserted and extracted;
step A3, the cloud traffic management server takes the first cloud digital abstract, the vehicle identification code and the first cloud digital signature as parameters to generate a digital watermark, and then combines the digital watermark key to embed the digital watermark into a common vehicle license plate image to generate the safe vehicle license plate image;
step A4, generating a safe vehicle number plate from the safe vehicle number plate image according to the printing and manufacturing specifications of the vehicle number plate by a vehicle management department; then, a safety vehicle number plate is installed on the vehicle end.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. Vehicle fake license plate detecting system based on internet of vehicles, its characterized in that includes: the system comprises a cloud traffic management server, at least one acquisition end and at least one vehicle end; the cloud traffic management server comprises a cloud digital watermark generating module; the acquisition end comprises a camera module, an acquisition end short-distance direct communication module, an acquisition end digital watermark identification module and an acquisition end processing module; the vehicle end comprises a vehicle end short-distance direct communication module; the acquisition end is in communication connection with the vehicle end through the acquisition end short-distance direct communication module and the vehicle end short-distance direct communication module;
the cloud digital watermark generating module is used for generating a digital watermark and embedding the digital watermark into a common vehicle license plate image to form a safe vehicle license plate image; the digital watermark comprises a first cloud digital abstract of a common vehicle license plate image, a vehicle identification code corresponding to the vehicle license plate when the vehicle license plate is registered in a vehicle management department, and a first cloud digital signature of the first cloud digital abstract and the vehicle identification code;
the camera module is used for shooting the vehicle number plate at the vehicle end in real time to obtain a vehicle number plate image;
the digital watermark identification module at the acquisition end is used for identifying and/or extracting the digital watermark embedded in the vehicle license plate image;
the acquisition end processing module is used for collecting the vehicle number plate image of the vehicle end acquired by the camera module and the vehicle identification code of the vehicle end acquired by the acquisition end short-distance direct communication module; the license plate verification system is used for verifying whether the license plate is a legal safe license plate or not and whether the license plate is a fake license plate or not based on the digital watermark, the image of the license plate and the vehicle identification code, and specifically comprises the following steps:
calling the acquisition terminal digital watermark identification module to attempt to identify the digital watermark contained in the vehicle license plate image acquired by the camera module; if the digital watermark identification fails, judging that the vehicle license plate corresponding to the vehicle license plate image is an illegal safe vehicle license plate, and then generating a vehicle license plate digital watermark identification failure message; if the digital watermark is successfully identified, calling the acquisition end digital watermark identification module to extract digital watermark information contained in the vehicle license plate image, and acquiring a first cloud digital abstract, the vehicle identification code and a first cloud digital signature; then, checking the first cloud digital signature according to the first cloud digital abstract and the vehicle identification code; if the signature verification fails, judging that the vehicle number plate corresponding to the vehicle number plate image is an illegal safe vehicle number plate, and generating a first cloud digital signature verification failure message; if the verification is successful, the vehicle number plate image is judged to be a complete and non-tampered vehicle number plate and is a legal and safe vehicle number plate issued by the cloud traffic management server; then comparing the vehicle identification code extracted from the digital watermark with the vehicle identification code acquired by the acquisition end short-distance direct communication module, and if the comparison is the same, generating a message that the vehicle number plate identification verification is successful and the plate is not fake; if the comparison is different, the vehicle number plate is generated as a fake plate message.
2. The vehicle fake plate detection system based on the internet of vehicles according to claim 1, wherein the cloud traffic management server further comprises a cloud security module, the acquisition end further comprises an acquisition end security module, and the vehicle end further comprises a vehicle end security module;
the cloud end safety module, the acquisition end safety module and the vehicle end safety module are respectively used for providing a password service function and a safety storage function for the cloud end traffic management server, the acquisition end and the vehicle end;
the vehicle end is characterized in that the vehicle identification code of the vehicle end is arranged in the safe storage area of the vehicle end safety module before the vehicle leaves a factory by a vehicle production party, the vehicle identification code is arranged in the safe storage area of the vehicle end safety module, and only a read-only function is provided, so that the vehicle identification code arranged in the safe storage area of the vehicle end safety module cannot be changed by a vehicle using party.
3. The internet-of-vehicles based vehicle fake plate detection system of claim 2, wherein the cloud traffic management server further comprises a digital certificate module;
the digital certificate module is used for generating and storing public key certificates for the cloud traffic management server and the acquisition end respectively; the digital certificate module writes the public key certificate of the acquisition end and the public key certificate of the cloud traffic management server into the acquisition end safety module in an off-line or on-line mode; the cloud traffic management server and the acquisition end respectively store private keys corresponding to public keys in corresponding public key certificates; the private key of the cloud traffic management server is stored in the digital certificate module or the safe storage area of the cloud safety module; and the private key of the acquisition end is stored in the safe storage area of the acquisition end safety module.
4. The vehicle fake-license detection system based on the internet of vehicles as claimed in claim 3, wherein the digital certificate module is further configured to generate and store a public key certificate for the vehicle end; the digital certificate module writes the public key certificate of the vehicle end and the public key certificate of the cloud traffic management server into the vehicle end safety module in an off-line or on-line mode; the vehicle end stores a private key corresponding to a public key in a corresponding public key certificate; and the private key of the vehicle end is stored in the safe storage area of the vehicle end safety module.
5. The internet-of-vehicles based vehicle fake plate detection system of claim 2, wherein the collection end further comprises a collection end positioning module;
the acquisition end positioning module is used for acquiring the position information of the acquisition end;
correspondingly, the collecting end processing module is further configured to collect the position information of the collecting end obtained from the collecting end positioning module and the time information of the collecting end when the collecting end collects the vehicle number plate image, the vehicle identification code and the position information of the collecting end, and send the vehicle number plate image, the vehicle identification code, the position information of the collecting end and the time information to the cloud traffic management server;
correspondingly, the cloud traffic management server is further used for carrying out vehicle positioning, vehicle tracking and/or vehicle management according to the vehicle number plate image, the vehicle identification code, the position information of the acquisition end and the time information.
6. The Internet of vehicles based vehicle fake-license detection system of claim 5,
when a plurality of collecting terminals are available, the cloud traffic management server comprehensively calculates the position of the vehicle represented by the vehicle terminal at the corresponding moment according to the vehicle number plate image, the vehicle identification code, the position information and the time information of the collecting terminal of the certain vehicle terminal reported by different collecting terminals;
when the distance value between two acquisition ends in different geographic positions exceeds the product of the difference value of the time of the vehicle end before and after the two acquisition ends and the maximum driving speed of the vehicle end allowed by a vehicle management department on a corresponding driving road section, the cloud traffic management server judges that the corresponding vehicle number plate is fake or the corresponding vehicle end vehicle speed is violated, and then informs the traffic management department of further verification and/or processing.
7. The internet-of-vehicles-based vehicle fake plate detection system of claim 1, wherein the camera module comprises a first camera, a second camera, a third camera, a vehicle number plate identification module, a vehicle number plate synthesis module, a light sensing module and a light supplementing module;
the first camera is used for collecting real-time video information of the vehicle end and has an infrared camera shooting function;
the second camera is a long-focus camera and is used for photographing the vehicle number plate at the vehicle end;
the third camera is a wide-angle camera and is used for photographing the vehicle number plate at the vehicle end;
the vehicle license plate recognition module is used for recognizing the video information collected by the first camera in real time, and calling the second camera and the third camera to photograph the vehicle license plate if a vehicle license plate image is recognized in the video information;
the vehicle license plate synthesizing module is used for calculating and synthesizing the vehicle license plate images shot by the second camera and the third camera respectively to obtain clear and high-quality vehicle license plate images;
the light sensing module is used for sensing whether the intensity of light is proper or not when the second camera and the third camera take a picture, and then calling the light supplementing module to supplement light according to the requirement;
and the light supplementing module is used for supplementing light when the second camera and the third camera take photos.
8. Vehicle fake license plate detection method based on Internet of vehicles is characterized by comprising the following steps:
step 1: the method comprises the steps that a collecting end collects vehicle number plate images of a vehicle end in real time and obtains a vehicle identification code of the vehicle end;
step 2: the acquisition end requests a digital watermark key from the cloud traffic management server; after receiving the request, the cloud traffic management server encrypts the digital watermark key by using a private key of the cloud traffic management server and sends the encrypted digital watermark key to the acquisition end; the acquisition end decrypts by adopting a public key of the cloud traffic management server to obtain the digital watermark key;
and step 3: the acquisition end uses the digital watermark key to try to identify the digital watermark contained in the vehicle license plate image: if the digital watermark identification fails, judging that the vehicle license plate corresponding to the vehicle license plate image is an illegal safe vehicle license plate, and generating a vehicle license plate digital watermark identification failure message; if the digital watermark is successfully identified, extracting the digital watermark contained in the vehicle license plate image, and obtaining a first cloud digital abstract, a vehicle identification code and a first cloud digital signature from the digital watermark;
and 4, step 4: the acquisition end checks and signs the first cloud digital signature acquired from the digital watermark according to the first cloud digital abstract and the vehicle identification code acquired from the digital watermark: if the signature verification fails, judging that the vehicle number plate corresponding to the vehicle number plate image is an illegal safe vehicle number plate, and generating a first cloud digital signature verification failure message; if the verification is successful, the vehicle number plate image is judged to be a complete and non-tampered vehicle number plate and is a legal and safe vehicle number plate issued by the cloud traffic management server;
and 5: the acquisition end compares the vehicle identification code obtained from the digital watermark with the vehicle identification code obtained in the step 1: if the comparison is the same, generating a message that the vehicle number plate identification verification is successful and the plate is not fake; if the comparison is different, the vehicle number plate is generated as a fake plate message.
9. The vehicle fake plate detection method based on the internet of vehicles according to claim 8, wherein the collection terminal further sends the vehicle number plate image, the vehicle identification code, and the corresponding vehicle number plate digital watermark identification failure message, the first cloud-side digital signature verification failure message or the vehicle number plate information as fake plate generated by the collection terminal to the cloud-side traffic management server, so that the cloud-side traffic management server comprehensively records, counts and/or analyzes conditions of the corresponding vehicle terminal and the corresponding vehicle number plate, and notifies a traffic management department to take corresponding measures.
10. The internet-of-vehicles based vehicle fake plate detection method of claim 9, further comprising: before the acquisition end sends the vehicle number plate image, the vehicle identification code and a corresponding acquisition end returned cloud end message to the cloud end traffic management server, signing the vehicle number plate image, the vehicle identification code and the corresponding acquisition end returned cloud end message to obtain a first acquisition end digital signature; then, the vehicle number plate image, the vehicle identification code and a corresponding acquisition end return cloud end message and the first acquisition end digital signature are sent to the cloud end traffic management server;
the cloud traffic management server checks the first acquisition end digital signature based on the received vehicle license plate image, the vehicle identification code and the corresponding acquisition end returned cloud information: if the signature verification fails, the cloud traffic management server returns a first acquisition end digital signature verification failure message to the acquisition end; if the verification is successful, the vehicle license plate image sent by the acquisition end, the vehicle identification code and the corresponding cloud end returned by the acquisition end are judged to be complete and not to be tampered, and the identity of the acquisition end is real;
the vehicle license plate digital watermark identification failure message, the first cloud digital signature verification failure message and the vehicle license plate fake license plate message generated by the acquisition end are collectively called an acquisition end return cloud end message.
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