CN117376865A - Electronic license plate based on CAT1 and Beidou positioning and system thereof - Google Patents

Electronic license plate based on CAT1 and Beidou positioning and system thereof Download PDF

Info

Publication number
CN117376865A
CN117376865A CN202311251485.7A CN202311251485A CN117376865A CN 117376865 A CN117376865 A CN 117376865A CN 202311251485 A CN202311251485 A CN 202311251485A CN 117376865 A CN117376865 A CN 117376865A
Authority
CN
China
Prior art keywords
license plate
vehicle
electronic license
information
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311251485.7A
Other languages
Chinese (zh)
Inventor
孔庆丰
孔繁松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Fengliyuan Energy Saving Technology Co ltd
Original Assignee
Shenzhen Fengliyuan Energy Saving Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Fengliyuan Energy Saving Technology Co ltd filed Critical Shenzhen Fengliyuan Energy Saving Technology Co ltd
Priority to CN202311251485.7A priority Critical patent/CN117376865A/en
Publication of CN117376865A publication Critical patent/CN117376865A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42—Determining position
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C1/00—Measuring angles
    • G01C1/02—Theodolites
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
    • G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
    • G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
    • G01C21/165—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation combined with non-inertial navigation instruments
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/02—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/03—Protecting confidentiality, e.g. by encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H04W12/068—Authentication using credential vaults, e.g. password manager applications or one time password [OTP] applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Automation & Control Theory (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The invention discloses an electronic license plate based on CAT1 and Beidou positioning and a system thereof, comprising: the real-time communication module is used for providing data connection service between the electronic license plate and the cloud server through the 4G CAT1; the data transmission module acquires vehicle data, transmits the vehicle data to the display screen for display, initializes the electronic license plate, records the running state of the vehicle in the running process of the vehicle, and displays the running state of the vehicle in the display screen of the electronic license plate; and the vehicle positioning module is used for acquiring the position information and the vehicle speed information of the vehicle in real time by using Beidou GPS satellite positioning, acquiring the longitude and latitude information of the vehicle and accurately calculating the position of the vehicle through coordinate rotation. The invention has the advantages of low cost, rapid and accurate acquisition of the positioning information and the speed information of the vehicle, and can replace and assist the traditional entity license plate and be applied to ETC charging, parking charging, illegal parking management, overspeed monitoring of the vehicle and other scenes.

Description

Electronic license plate based on CAT1 and Beidou positioning and system thereof
Technical Field
The invention relates to an electronic positioning technology, in particular to an electronic license plate based on CAT1 and Beidou positioning and a system thereof.
Background
The 4G CAT1 is a standard for user terminal category under the 4G communication LTE network. There are intelligent vehicles using bluetooth technology, as well as NBIOT or 2G/3G wireless modules, but the signals are not stable due to network coverage in cities. And the Bluetooth technology is used for realizing authorization by means of the mobile terminal, the mobile terminal is not monitored in the hand of a user, software can be possibly deciphered, and the safety problem is seriously threatened.
The Beidou GPS is a satellite navigation system and can provide continuous navigation information for vehicle owners. However, when a single GPS receiver works in a tunnel, forest, or the like with shielding or serious electromagnetic interference, it cannot receive the navigation signal transmitted from the satellite, and navigation positioning cannot be performed. And cannot be self-tested in the event of a failure.
The utility model provides a patent of CN201821931848.6 discloses a take GPS vehicle positioning card of low-power consumption communication module, including shell and circuit subassembly, circuit subassembly includes power module, GPS module, control chip, acceleration sensor, LED lamp, remote communication module and near-distance communication module, power module includes voltage stabilizing module and charging module, voltage stabilizing module output power supply, control chip connects charging module, GPS module, acceleration sensor, LED lamp, remote communication module and near-distance communication module. However, the GPS vehicle locator card cannot more accurately acquire the vehicle position and cannot encrypt the owner information and the vehicle information.
Therefore, an electronic license plate based on CAT1 and Beidou positioning and a system thereof are needed to solve the above problems.
Disclosure of Invention
The invention provides an electronic license plate based on CAT1 and Beidou positioning and a system thereof, which aim to solve the problems in the prior art.
Electronic license plate system based on CAT1 and big dipper location includes:
the real-time communication module is used for providing data connection service between the electronic license plate and the cloud server through the 4G CAT1;
the data transmission module is used for acquiring vehicle data, transmitting the vehicle data to the display screen for display, initializing the electronic license plate, recording the running state of the vehicle in the running process of the vehicle, and displaying the running state of the vehicle in the display screen of the electronic license plate;
the vehicle positioning module is used for acquiring the position information and the vehicle speed information of the vehicle in real time by using Beidou GPS satellite positioning, acquiring the longitude and latitude information of the vehicle and accurately calculating the position of the vehicle through coordinate rotation;
the power supply module is used for acquiring a power supply to charge the electronic license plate and realizing low-power-consumption operation of the electronic license plate.
Preferably, the real-time communication module includes:
the electronic configuration unit is used for configuring the connection service of the electronic license plate through an administrator of the electronic license plate system; the configuration content comprises an IP address, a port and a communication key which are connected with the cloud server, and an upgrading function of the electronic license plate system is set;
the service authorization unit is used for acquiring the authorization of the vehicle position and the vehicle owner information, an administrator authorizes the positioning function and the installation task of the electronic license plate through the management function of the cloud server, and an operator of the electronic license plate holds the authorization positioning function of the electronic license plate and the registration function of the identity of the authorized vehicle owner;
the event uploading unit is used for automatically uploading the positioning function and the installation task of the electronic license plate to the cloud server, and an administrator manages the function of the electronic license plate system through inquiring the event and establishes the inquiring event and the authorizing process on the 4G CAT1 wireless communication technology.
Preferably, the data transmitting module includes:
the communication initialization unit is used for initializing registration information and running state of the electronic license plate, wherein the registration information comprises registration and registration of owner information and the type of the electronic license plate, and the running state comprises positioning instruction, communication instruction and license plate reading state instruction of the electronic license plate;
the electronic display unit is used for displaying information in the electronic license plate by using the OLED screen, and the display content comprises the electric quantity of the electronic license plate, the current time, the task inquiry, the task execution, the charging and the communication state;
the instruction issuing unit is used for an owner to issue an instruction in the electronic license plate, wireless communication between the electronic license plate and the cloud server is established by using the Bluetooth module, a user establishes connection with the electronic license plate through an NFC function in the mobile terminal, and information in the electronic license plate is acquired through the mobile terminal.
Preferably, the instruction issue unit includes:
the system comprises an Internet of things management subunit, a task management subunit and a task management subunit, wherein the Internet of things management subunit is used for managing task functions of the electronic license plate, and the task functions comprise authority management of an owner, task issuing and event uploading;
the information reading subunit is used for reading the owner information and the electronic license plate information by using NFC;
the system control subunit is used for realizing low-power-consumption operation of the electronic license plate and comprises the on-off of the electronic license plate and the charging management of a power supply; in the flameout process of the vehicle, the electronic license plate is in a dormant state, and meanwhile, the cloud server detects the battery voltage of the electronic license plate and manages the charging chip.
Preferably, the vehicle positioning module includes:
the satellite monitoring unit is used for monitoring the ground vehicle by using a GPS, and the monitoring system comprises a main control station, a monitoring station and an injection station; the monitoring station is used for monitoring the state information of the acquired space satellite and sending the state information to the main control station; the main control station generates satellite signals according to the state information and sends the satellite signals to the injection station, the injection station calculates navigation parameters in the satellite signals, and finally the navigation parameters are sent to a GPS receiver of the space satellite;
the coordinate acquisition unit is used for calculating and obtaining the coordinate position of the GPS receiver, acquiring satellite signals and navigation parameters of the space satellite as satellite information by the electronic license plate, and calculating the coordinate position of the GPS receiver by constructing an equation set;
the coordinate conversion unit is used for determining the specific position of the vehicle, acquiring the coordinate position containing longitude and latitude data in the GPS receiver to determine the position of the electronic license plate, and obtaining the accurate vehicle position in a coordinate conversion mode.
Preferably, the coordinate conversion unit includes:
the coordinate axis establishing subunit is used for establishing a coordinate system at a vehicle starting point, taking the center of the vehicle as a coordinate origin, taking the right side of the vehicle as an X axis, taking the running direction of the vehicle as a Y axis, and taking the vehicle deflection angle between the running direction of the vehicle and the X axis as theta; defining a state vector of the vehicle during running to include an X-axis component, a Y-axis component, a vehicle speed and a vehicle deflection angle theta;
the data processing subunit is used for acquiring the state vector for preprocessing, calculating a first state vector of the vehicle at the current moment, predicting a second state vector of the vehicle at the next moment when the vehicle is running, calculating the state vector covariance of the first state vector and the second state vector, carrying out weighting operation, outputting a covariance matrix of the state vector covariance, and outputting position information in the covariance matrix.
Preferably, the data processing subunit further comprises, after:
the data conversion subunit is used for converting longitude and latitude data in the position information, inputting the longitude and latitude data into the MCU main control chip, performing Gaussian projection coordinate conversion on the longitude and latitude data, converting the longitude and latitude into a Gaussian plane rectangular coordinate system and then calculating; the rectangular Gaussian plane coordinate system takes the intersection point of the central meridian and the equator as the origin of coordinates, the projection of the central meridian is taken as the ordinate axis, the projection of the equator is taken as the abscissa axis,
the data accurate subunit is used for accurately acquiring longitude and latitude data, performing gain on the longitude and latitude data through a Kalman filtering algorithm after the vehicle is in a transformed position, obtaining a covariance matrix of Gaussian noise, representing measurement errors of GSP positioning, and finally obtaining the accurate longitude and latitude position through calculating a state vector covariance matrix of an updating part of the vehicle transformed position.
Preferably, the electronic configuration unit includes:
the session anonymizing subunit is used for establishing anonymization communication between the electronic license plate and the cloud server, constructing a first control logic, and anonymizing a session between the electronic license plate and the cloud server within a preset time, wherein the session content comprises a vehicle positioning request and a vehicle speed request;
the encryption transmission subunit is used for carrying out encryption transmission on the vehicle and owner information, constructing a second control logic, generating a unique session identifier through anonymization processing, wherein the session identifier comprises a key pair, and the key pair stores vehicle parameters; encrypting the key pair by the electronic license plate to generate an encryption key, and obtaining information of the key pair by the cloud server through verifying the identity of the encryption key and decrypting to generate a decryption key;
and the condition judging subunit is used for judging whether the second control logic has the execution condition or not by the first control logic.
Preferably, the electronic license plate system based on CAT1 and Beidou positioning further comprises:
the error analysis module is used for detecting measurement errors of positioning the electronic license plate, wherein the measurement errors comprise GPS positioning errors, propagation path errors and receiver equipment errors;
the fault detection module is used for automatically checking fault problems in the electronic license plate, acquiring measurement errors, constructing an error characteristic model, setting the weight of GPS positioning parameters by using a weight estimation strategy, resolving by a least square method, comparing a resolving result with the error characteristic model, and detecting the faults of the electronic license plate;
the problem self-repairing module is used for automatically repairing the fault of the detected electronic license plate, carrying out global inspection on the fault by presetting false alarm probability, and repairing the identified error by using a weight correction mode.
Preferably, electronic license plate based on 4G CAT1 and big dipper GPS location includes:
providing data connection service of the electronic license plate and a cloud server through the 4G CAT1;
acquiring vehicle data, sending the vehicle data to a display screen for display, initializing an electronic license plate, recording the running state of the vehicle in the running process of the vehicle, and displaying the running state of the vehicle in the display screen of the electronic license plate;
the method comprises the steps of acquiring position information and vehicle speed information of a vehicle in real time by using Beidou GPS satellite positioning, acquiring longitude and latitude information of the vehicle, and accurately calculating the position of the vehicle through coordinate rotation;
and acquiring a power supply to charge the electronic license plate, and realizing low-power-consumption operation of the electronic license plate.
Compared with the prior art, the invention has the following advantages: the invention provides an electronic license plate based on CAT1 and Beidou positioning and a system thereof, which are characterized by low cost and good reliability, and can meet the requirements of the existing traffic system on vehicle information, positioning information and speed supervision.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a block diagram of an electronic license plate system based on CAT1 and Beidou positioning in an embodiment of the invention;
FIG. 2 is a block diagram of a unit for determining a specific position of a vehicle by an electronic license plate through GPS in an embodiment of the invention;
fig. 3 is a block diagram of an electronic license plate based on CAT1 and beidou positioning in an embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Referring to fig. 1, an embodiment of the present invention provides an electronic license plate system based on CAT1 and beidou positioning, including:
the real-time communication module is used for providing data connection service between the electronic license plate and the cloud server through the 4G CAT1;
the data transmission module is used for acquiring vehicle data, transmitting the vehicle data to the display screen for display, initializing the electronic license plate, recording the running state of the vehicle in the running process of the vehicle, and displaying the running state of the vehicle in the display screen of the electronic license plate;
the vehicle positioning module is used for acquiring the position information and the vehicle speed information of the vehicle in real time by using Beidou GPS satellite positioning, acquiring the longitude and latitude information of the vehicle and accurately calculating the position of the vehicle through coordinate rotation;
the power supply module is used for acquiring a power supply to charge the electronic license plate and realizing low-power-consumption operation of the electronic license plate.
In another embodiment, the real-time communication module comprises:
the electronic configuration unit is used for configuring the connection service of the electronic license plate through an administrator of the electronic license plate system; the configuration content comprises an IP address, a port and a communication key which are connected with the cloud server, and an upgrading function of the electronic license plate system is set;
the service authorization unit is used for acquiring the authorization of the vehicle position and the vehicle owner information, an administrator authorizes the positioning function and the installation task of the electronic license plate through the management function of the cloud server, and an operator of the electronic license plate holds the authorization positioning function of the electronic license plate and the registration function of the identity of the authorized vehicle owner;
the event uploading unit is used for automatically uploading the positioning function and the installation task of the electronic license plate to the cloud server, and an administrator manages the function of the electronic license plate system through inquiring the event and establishes the inquiring event and the authorizing process on the 4G CAT1 wireless communication technology.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that before the electronic license plate is used, the electronic license plate needs to be configured first, and an administrator of the electronic license plate system sets an IP address, a port, a communication key and a system upgrading function for connecting the electronic license plate with a cloud server. The manager continuously authorizes the positioning function or the installation task of the electronic license plate through the management system of the cloud server, the operator of the electronic license plate holds the authorization positioning function of the electronic license plate and the registration function and the positioning task of the NFC authorized vehicle owner identity, the electronic license plate automatically positions or uploads the installation task to the cloud server, the manager inquires about an event through the management system, and the whole authorization process and the event report are established on the wireless communication technology of the 4G CAT 1.
In another embodiment, the data transmission module includes:
the communication initialization unit is used for initializing registration information and running state of the electronic license plate, wherein the registration information comprises registration and registration of owner information and the type of the electronic license plate, and the running state comprises positioning instruction, communication instruction and license plate reading state instruction of the electronic license plate;
the electronic display unit is used for displaying information in the electronic license plate by using the OLED screen, and the display content comprises the electric quantity of the electronic license plate, the current time, the task inquiry, the task execution, the charging and the communication state;
the instruction issuing unit is used for an owner to issue an instruction in the electronic license plate, wireless communication between the electronic license plate and the cloud server is established by using the Bluetooth module, a user establishes connection with the electronic license plate through an NFC function in the mobile terminal, and information in the electronic license plate is acquired through the mobile terminal.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the electronic license plate comprises an acousto-optic display screen and a prompt of the display screen, wherein the display screen is displayed in a menu mode by using an OLED screen, a 4G CAT1 module is arranged in the display screen in an operating mode through four keys, the 4G CAT1 electronic license plate is provided with a function of supplying power to an internal power supply and communicating, and after the right is obtained successfully, the electronic license plate is in charge of carrying out wireless network communication with an electronic license plate system and is used for obtaining NFC. The 4G CAT1 electronic license plate comprises a chip, a circuit, a charging communication circuit, a wireless communication circuit, a power supply circuit, a Bluetooth communication circuit, an NFC power supply circuit, a display driving circuit, a display screen, a voltage stabilizing circuit, a rechargeable battery and a main chip circuit.
Firstly, establishing wireless communication between an electronic license plate and a cloud server by using a Bluetooth module, sending a positioning instruction and a data receiving instruction to the electronic license plate by the cloud server, reading the running state of the electronic license plate at the moment, initializing the electronic license plate and registering owner information.
And displaying the electric quantity and the current time of the electronic license plate, inquiring the positioning information of the electronic license plate and executing instructions in an OLED display screen of the electronic license plate, and inquiring the charging and internet surfing states.
The beneficial effects of the technical scheme are as follows: by adopting the scheme provided by the embodiment, the wireless communication mode of the 4G CAT1 is used, and the wireless communication system has the characteristics of medium speed, low delay, wide coverage, low power consumption, compact package, lower cost and mobile communication.
In another embodiment, the instruction issue unit includes:
the system comprises an Internet of things management subunit, a task management subunit and a task management subunit, wherein the Internet of things management subunit is used for managing task functions of the electronic license plate, and the task functions comprise authority management of an owner, task issuing and event uploading;
the information reading subunit is used for reading the owner information and the electronic license plate information by using NFC;
the system control subunit is used for realizing low-power-consumption operation of the electronic license plate and comprises the on-off of the electronic license plate and the charging management of a power supply; in the flameout process of the vehicle, the electronic license plate is in a dormant state, and meanwhile, the cloud server detects the battery voltage of the electronic license plate and manages the charging chip.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that the 4G CAT1 is directly connected with a cloud server, an administrator firstly authenticates an electronic license plate, a task is issued and an event is uploaded, NFC realizes reading and communication acquisition of user information, the electronic license plate is in a low-power running state in the whole process, and achieves the lowest power consumption when the license plate is dormant through startup and shutdown, and only consumption of current of less than 1 microampere, battery voltage detection, charging chip management and the like are achieved.
The beneficial effects of the technical scheme are as follows: by adopting the scheme provided by the embodiment, the electronic license plate is directly connected with the cloud server through the 4G CAT1 wireless communication technology, the information such as installation, positioning tasks and the like is acquired by authentication to realize, install and position, and the event is uploaded to the cloud server without the assistance of other intelligent terminals such as mobile phones; meanwhile, the vehicle management system can uniformly manage vehicles, so that the vehicle management is simpler, safer and more accurate.
Referring to fig. 2, in another embodiment, the vehicle positioning module includes:
the satellite monitoring unit is used for monitoring the ground vehicle by using the GPS, and the monitoring comprises a main control station, a monitoring station and an injection station; the monitoring station is used for monitoring the state information of the acquired space satellite and sending the state information to the main control station; the main control station generates satellite signals according to the state information and sends the satellite signals to the injection station, the injection station calculates navigation parameters in the satellite signals, and finally the navigation parameters are sent to a GPS receiver of the space satellite;
the coordinate acquisition unit is used for calculating and obtaining the coordinate position of the GPS receiver, acquiring satellite signals and navigation parameters of the space satellite as satellite information by the electronic license plate, and calculating the coordinate position of the GPS receiver by constructing an equation set;
the coordinate conversion unit is used for determining the specific position of the vehicle, acquiring the coordinate position containing longitude and latitude data in the GPS receiver to determine the position of the electronic license plate, and obtaining the accurate vehicle position in a coordinate conversion mode.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that GPS navigation is adopted to carry out mobile positioning on the vehicle, and calibration is carried out through a data interaction mode with inertial navigation, so that more accurate position coordinates are obtained. The use of GPS navigation positioning enables the positioning, pacing and timing services of a target vehicle worldwide. The GPS consists of a ground monitoring part, a space part and an electronic license plate part. The GPS ground monitoring part consists of 1 main control station, 5 monitoring stations and 3 injection stations. The monitoring station is mainly responsible for monitoring the space satellite, comprising navigation information sent by the satellite and the state of the satellite, collecting the atmospheric information of the signal in the propagation process, and finally packaging all the collected information and sending the information to the main control station. The main control station is mainly responsible for receiving and transmitting satellite signals, analyzing the satellite signals, calculating various navigation parameters and feeding back to the space satellites. The main control station can also send control instructions to the space satellite to realize the calling control of the satellite, and the injection station is mainly responsible for feeding back the navigation parameters calculated by the main control station to the space satellite. And the navigation parameters calculated by the master control station are sent to the space satellite.
The GPS space part is used as a core of satellite navigation and is mainly responsible for transmitting navigation messages, and is assembled by a plurality of satellites, wherein 21 normally serving satellites run on 6 orbit planes with angles of sixty degrees, 3 fault standby satellites work on 3 different orbits, and the satellites can be replaced in a short time when faults occur, so that the working stability of the GPS is ensured. And there are at least four satellite signals acceptable to the operator portion located at the ground.
The main functions of the electronic license plate are signal receiving and navigation resolving, the whole final purpose of the GPS is to serve for users to receive data, and the GPS can track satellites and measure GPS signals besides receiving signals. And selecting satellites with different accuracies for receiving according to the demands of operators.
After the electronic license plate receives more than three satellite signals, the distance from the satellite to the GPS receiver is calculated through preset space satellite information, and the coordinate position of the GPS receiver is obtained through a mode of constructing an equation set. The specific position of the vehicle is determined through the coordinates, after a coordinate system is established, the coordinates are rotated, so that the positions of the vehicle in different coordinate systems are converted into the same coordinate system in the running process, the coordinate position of the vehicle is determined, and longitude and latitude data of the vehicle are obtained.
The beneficial effects of the technical scheme are as follows: by adopting the scheme provided by the embodiment, the more accurate vehicle position can be obtained more accurately by using satellite positioning and constructing a coordinate system.
In another embodiment, the coordinate conversion unit includes:
the coordinate axis establishing subunit is used for establishing a coordinate system at a vehicle starting point, taking the center of the vehicle as a coordinate origin, taking the right side of the vehicle as an X axis, taking the running direction of the vehicle as a Y axis, and taking the vehicle deflection angle between the running direction of the vehicle and the X axis as theta; defining a state vector of the vehicle during running to include an X-axis component, a Y-axis component, a vehicle speed and a vehicle deflection angle theta;
the data processing subunit is used for acquiring the state vector for preprocessing, calculating a first state vector of the vehicle at the current moment, predicting a second state vector of the vehicle at the next moment when the vehicle is running, calculating the state vector covariance of the first state vector and the second state vector, carrying out weighting operation, outputting a covariance matrix of the state vector covariance, and outputting position information in the covariance matrix.
In another embodiment, after the data processing subunit, the method further comprises:
the data conversion subunit is used for converting longitude and latitude data in the position information, inputting the longitude and latitude data into the MCU main control chip, performing Gaussian projection coordinate conversion on the longitude and latitude data, converting the longitude and latitude into a Gaussian plane rectangular coordinate system and then calculating; the rectangular Gaussian plane coordinate system takes the intersection point of the central meridian and the equator as the origin of coordinates, the projection of the central meridian is taken as the ordinate axis, the projection of the equator is taken as the abscissa axis,
the data accurate subunit is used for accurately acquiring longitude and latitude data, performing gain on the longitude and latitude data through a Kalman filtering algorithm after the vehicle is in a transformed position, obtaining a covariance matrix of Gaussian noise, representing measurement errors of GSP positioning, and finally obtaining the accurate longitude and latitude position through calculating a state vector covariance matrix of an updating part of the vehicle transformed position.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that a Kalman filtering algorithm is used for accurately positioning the running state of the vehicle. Preprocessing the longitude and latitude data, and carrying out weighting operation on the processed longitude and latitude data and the predicted value of the vehicle position to obtain fused data. Setting a state vector of a satellite, establishing a vector matrix, and initializing the vector matrix. A coordinate system is established at a starting point of the vehicle, the center of the vehicle is taken as a coordinate origin, the right side of the vehicle body is taken as an X axis, the front of the vehicle head is taken as a Y axis, and theta is the running direction of the vehicle and the included angle between the vehicle and the X axis under the coordinate system, so that the state vector of the vehicle can be obtained and comprises an X axis component, a Y axis component, the vehicle speed and a vehicle deflection angle theta after the vehicle is driven out. Acquiring longitude and latitude data of the vehicle, predicting a state vector and a state vector covariance of the vehicle at the next moment, carrying out weighting operation, outputting a state vector and a state vector covariance matrix, and outputting position information in the fused state vector to obtain an accurate longitude and latitude position.
The acquired longitude and latitude data are input into an MCU main control chip through a serial port, gaussian projection coordinate transformation is carried out on the longitude and latitude data, and the longitude and latitude are calculated after being converted into Gaussian plane rectangular coordinates. The coordinate system takes the intersection point of the central meridian and the equator as the origin of coordinates, the projection of the central meridian is taken as the ordinate axis, the projection of the equator is taken as the abscissa axis, after the vehicle is in a transformed position, gain is carried out through a Kalman filtering algorithm, a covariance matrix of Gaussian noise is obtained, the measurement error of GSP positioning is represented, and the accurate longitude and latitude position is finally obtained through calculating the state vector covariance matrix of an updated part.
The beneficial effects of the technical scheme are as follows: by adopting the scheme provided by the embodiment, the longitude and latitude data are correspondingly processed by using a Kalman filtering algorithm, and accurate longitude and latitude data are obtained through coordinate transformation, so that the specific position of the vehicle is finally obtained.
In another embodiment, the electronic configuration unit comprises:
the session anonymizing subunit is used for establishing anonymization communication between the electronic license plate and the cloud server, constructing a first control logic, and anonymizing a session between the electronic license plate and the cloud server within a preset time, wherein the session content comprises a vehicle positioning request and a vehicle speed request;
the encryption transmission subunit is used for carrying out encryption transmission on the vehicle and owner information, constructing a second control logic, generating a unique session identifier through anonymization processing, wherein the session identifier comprises a key pair, and the key pair stores vehicle parameters; the electronic license plate encrypts the key pair to generate an encryption key, and the cloud server verifies the identity of the encryption key and decrypts the encryption key to generate a decryption key to acquire information in the key pair.
And the condition judging subunit is used for judging whether the second control logic has the execution condition or not by the first control logic.
The working principle of the technical scheme is as follows: the scheme adopted by the embodiment is that communication connection between the electronic license plate and the cloud server is established, and control logic is established for encrypting and transmitting registration information of an owner and vehicle positioning information. And constructing a first control logic for anonymizing a session between the electronic license plate and the cloud server in a time unit, wherein the session content comprises a vehicle acquisition positioning request and a vehicle speed acquisition request. After the second control logic is established, a unique session identifier is generated, wherein the session identifier comprises a key pair, and various parameters related to vehicle information in the key pair, such as a starting position, an ending position and a current vehicle speed of the vehicle. The electronic license plate system sends the encryption key to the cloud management system, the cloud management system verifies the identity of the encryption key, and after verification is successful, the decryption key is generated for decryption.
The first control logic judges whether the second control logic has an execution condition or not, and determines the execution time of the second control logic.
The beneficial effects of the technical scheme are as follows: by adopting the south of the party provided by the embodiment, the control logic is arranged, the vehicle owner information is encrypted, and the uploading and the transmission of the vehicle information are encrypted, so that the data security is ensured, and the experience of the vehicle owner is improved.
In another embodiment, the electronic license plate system based on CAT1 and beidou positioning further comprises:
the error analysis module is used for detecting measurement errors of positioning the electronic license plate, wherein the measurement errors comprise GPS positioning errors, propagation path errors and receiver equipment errors;
the fault detection module is used for automatically checking fault problems in the electronic license plate, acquiring measurement errors, constructing an error characteristic model, setting the weight of GPS positioning parameters by using a weight estimation strategy, resolving by a least square method, comparing a resolving result with the error characteristic model, and detecting the faults of the electronic license plate;
the problem self-repairing module is used for automatically repairing the fault of the detected electronic license plate, carrying out global inspection on the fault by presetting false alarm probability, and repairing the identified error by using a weight correction mode.
The beneficial effects of the technical scheme are as follows: by adopting the scheme provided by the embodiment, the error of GPS positioning of the vehicle is accurately controlled and corrected by analyzing the measurement error, so that the accuracy of accurate positioning of the electronic ticket is improved.
In another embodiment, the electronic license plate system simultaneously implements the ETC settlement function of the vehicle, including:
the short-range communication module is used for establishing communication connection between the electronic license plate and the ETC charging channel, installing an induction card in the electronic license plate and carrying out short-range communication with a microwave antenna in the ETC channel through the induction card;
the settlement matching module is used for carrying out matched settlement on the cost of the target vehicle, establishing an ECT settlement platform in the electronic license plate system, determining an electronic bank account bound with the target vehicle by acquiring model information corresponding to the target vehicle, calculating the running cost of the target vehicle and automatically completing fee deduction;
the settlement broadcasting module is used for broadcasting and warning the settlement information of the target vehicle, setting a first signal to judge whether the induction card and the ETC channel establish communication, if so, sending the first signal to the electronic license plate system, setting a second signal to judge whether the target vehicle finishes the settlement of the cost, and if so, sending the second signal to the electronic license plate system; the electronic license plate system is connected with the microwave antenna in the ECT channel and controls the opening and closing of the gate in the ETC channel; and the electronic license plate system targets broadcast the charging progress in real time in the target vehicle according to the received first signal and the second signal.
Referring to fig. 3, in another embodiment, an electronic license plate based on CAT1 and beidou positioning includes:
providing data connection service of the electronic license plate and a cloud server through the 4G CAT1;
acquiring vehicle data, sending the vehicle data to a display screen for display, initializing an electronic license plate, recording the running state of the vehicle in the running process of the vehicle, and displaying the running state of the vehicle in the display screen of the electronic license plate;
the method comprises the steps of acquiring position information and vehicle speed information of a vehicle in real time by using Beidou GPS satellite positioning, acquiring longitude and latitude information of the vehicle, and accurately calculating the position of the vehicle through coordinate rotation;
and acquiring a power supply to charge the electronic license plate, and realizing low-power-consumption operation of the electronic license plate.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. Electronic license plate system based on CAT1 and big dipper location, its characterized in that includes:
the real-time communication module is used for providing data connection service between the electronic license plate and the cloud server through the 4G CAT1;
the data transmission module is used for acquiring vehicle data, transmitting the vehicle data to the display screen for display, initializing the electronic license plate, recording the running state of the vehicle in the running process of the vehicle, and displaying the running state of the vehicle in the display screen of the electronic license plate;
the vehicle positioning module is used for acquiring the position information and the vehicle speed information of the vehicle in real time by using Beidou GPS satellite positioning, acquiring the longitude and latitude information of the vehicle and accurately calculating the position of the vehicle through coordinate rotation;
the power supply module is used for acquiring a power supply to charge the electronic license plate and realizing low-power-consumption operation of the electronic license plate.
2. The electronic license plate system based on CAT1 and beidou positioning according to claim 1, wherein the real-time communication module comprises:
the electronic configuration unit is used for configuring the connection service of the electronic license plate through an administrator of the electronic license plate system; the configuration content comprises an IP address, a port and a communication key which are connected with the cloud server, and an upgrading function of the electronic license plate system is set;
the service authorization unit is used for acquiring the authorization of the vehicle position and the vehicle owner information, an administrator authorizes the positioning function and the installation task of the electronic license plate through the management function of the cloud server, and an operator of the electronic license plate holds the authorization positioning function of the electronic license plate and the registration function of the identity of the authorized vehicle owner;
the event uploading unit is used for automatically uploading the positioning function and the installation task of the electronic license plate to the cloud server, and an administrator manages the function of the electronic license plate system through inquiring the event and establishes the inquiring event and the authorizing process on the 4G CAT1 wireless communication technology.
3. The electronic license plate system based on CAT1 and beidou positioning according to claim 1, wherein the data transmitting module comprises:
the communication initialization unit is used for initializing registration information and running state of the electronic license plate, wherein the registration information comprises registration and registration of owner information and the type of the electronic license plate, and the running state comprises positioning instruction, communication instruction and license plate reading state instruction of the electronic license plate;
the electronic display unit is used for displaying information in the electronic license plate by using the OLED screen, and the display content comprises the electric quantity of the electronic license plate, the current time, the task inquiry, the task execution, the charging and the communication state;
the instruction issuing unit is used for an owner to issue an instruction in the electronic license plate, wireless communication between the electronic license plate and the cloud server is established by using the Bluetooth module, a user establishes connection with the electronic license plate through an NFC function in the mobile terminal, and information in the electronic license plate is acquired through the mobile terminal.
4. The electronic license plate system based on CAT1 and beidou positioning according to claim 3, wherein the instruction issuing unit comprises:
the system comprises an Internet of things management subunit, a task management subunit and a task management subunit, wherein the Internet of things management subunit is used for managing task functions of the electronic license plate, and the task functions comprise authority management of an owner, task issuing and event uploading;
the information reading subunit is used for reading the owner information and the electronic license plate information by using NFC;
the system control subunit is used for realizing low-power-consumption operation of the electronic license plate and comprises the on-off of the electronic license plate and the charging management of a power supply; in the flameout process of the vehicle, the electronic license plate is in a dormant state, and meanwhile, the cloud server detects the battery voltage of the electronic license plate and manages the charging chip.
5. The electronic license plate system based on CAT1 and beidou positioning of claim 1, wherein the vehicle positioning module comprises:
the satellite monitoring unit is used for monitoring the ground vehicle by using a GPS, and the monitoring system comprises a main control station, a monitoring station and an injection station; the monitoring station is used for monitoring the state information of the acquired space satellite and sending the state information to the main control station; the main control station generates satellite signals according to the state information and sends the satellite signals to the injection station, the injection station calculates navigation parameters in the satellite signals, and finally the navigation parameters are sent to a GPS receiver of the space satellite;
the coordinate acquisition unit is used for calculating and obtaining the coordinate position of the GPS receiver, acquiring satellite signals and navigation parameters of the space satellite as satellite information by the electronic license plate, and calculating the coordinate position of the GPS receiver by constructing an equation set;
the coordinate conversion unit is used for determining the specific position of the vehicle, acquiring the coordinate position containing longitude and latitude data in the GPS receiver to determine the position of the electronic license plate, and obtaining the accurate vehicle position in a coordinate conversion mode.
6. The electronic license plate system based on CAT1 and beidou positioning according to claim 5, wherein the coordinate conversion unit comprises:
the coordinate axis establishing subunit is used for establishing a coordinate system at a vehicle starting point, taking the center of the vehicle as a coordinate origin, taking the right side of the vehicle as an X axis, taking the running direction of the vehicle as a Y axis, and taking the vehicle deflection angle between the running direction of the vehicle and the X axis as theta; defining a state vector of the vehicle during running to include an X-axis component, a Y-axis component, a vehicle speed and a vehicle deflection angle theta;
the data processing subunit is used for acquiring the state vector for preprocessing, calculating a first state vector of the vehicle at the current moment, predicting a second state vector of the vehicle at the next moment when the vehicle is running, calculating the state vector covariance of the first state vector and the second state vector, carrying out weighting operation, outputting a covariance matrix of the state vector covariance, and outputting position information in the covariance matrix.
7. The electronic license plate system based on CAT1 and beidou positioning of claim 6, wherein after the data processing subunit, further comprises:
the data conversion subunit is used for converting longitude and latitude data in the position information, inputting the longitude and latitude data into the MCU main control chip, performing Gaussian projection coordinate conversion on the longitude and latitude data, converting the longitude and latitude into a Gaussian plane rectangular coordinate system and then calculating; the rectangular Gaussian plane coordinate system takes the intersection point of the central meridian and the equator as the origin of coordinates, the projection of the central meridian is taken as the ordinate axis, the projection of the equator is taken as the abscissa axis,
the data accurate subunit is used for accurately acquiring longitude and latitude data, performing gain on the longitude and latitude data through a Kalman filtering algorithm after the vehicle is in a transformed position, obtaining a covariance matrix of Gaussian noise, representing measurement errors of GSP positioning, and finally obtaining the accurate longitude and latitude position through calculating a state vector covariance matrix of an updating part of the vehicle transformed position.
8. The electronic license plate system based on CAT1 and beidou positioning according to claim 2, wherein the electronic configuration unit comprises:
the session anonymizing subunit is used for establishing anonymization communication between the electronic license plate and the cloud server, constructing a first control logic, and anonymizing a session between the electronic license plate and the cloud server within a preset time, wherein the session content comprises a vehicle positioning request and a vehicle speed request;
the encryption transmission subunit is used for carrying out encryption transmission on the vehicle and owner information, constructing a second control logic, generating a unique session identifier through anonymization processing, wherein the session identifier comprises a key pair, and the key pair stores vehicle parameters; encrypting the key pair by the electronic license plate to generate an encryption key, and obtaining information of the key pair by the cloud server through verifying the identity of the encryption key and decrypting to generate a decryption key;
and the condition judging subunit is used for judging whether the second control logic has the execution condition or not by the first control logic.
9. The CAT1 and beidou positioning based electronic license plate system of claim 1, further comprising:
the error analysis module is used for detecting measurement errors of positioning the electronic license plate, wherein the measurement errors comprise GPS positioning errors, propagation path errors and receiver equipment errors;
the fault detection module is used for automatically checking fault problems in the electronic license plate, acquiring measurement errors, constructing an error characteristic model, setting the weight of GPS positioning parameters by using a weight estimation strategy, resolving by a least square method, comparing a resolving result with the error characteristic model, and detecting the faults of the electronic license plate;
the problem self-repairing module is used for automatically repairing the fault of the detected electronic license plate, carrying out global inspection on the fault by presetting false alarm probability, and repairing the identified error by using a weight correction mode.
10. Electronic license plate based on CAT1 and big dipper location, its characterized in that includes:
providing data connection service of the electronic license plate and a cloud server through the 4G CAT1;
acquiring vehicle data, sending the vehicle data to a display screen for display, initializing an electronic license plate, recording the running state of the vehicle in the running process of the vehicle, and displaying the running state of the vehicle in the display screen of the electronic license plate;
the method comprises the steps of acquiring position information and vehicle speed information of a vehicle in real time by using Beidou GPS satellite positioning, acquiring longitude and latitude information of the vehicle, and accurately calculating the position of the vehicle through coordinate rotation;
and acquiring a power supply to charge the electronic license plate, and realizing low-power-consumption operation of the electronic license plate.
CN202311251485.7A 2023-09-26 2023-09-26 Electronic license plate based on CAT1 and Beidou positioning and system thereof Pending CN117376865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311251485.7A CN117376865A (en) 2023-09-26 2023-09-26 Electronic license plate based on CAT1 and Beidou positioning and system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311251485.7A CN117376865A (en) 2023-09-26 2023-09-26 Electronic license plate based on CAT1 and Beidou positioning and system thereof

Publications (1)

Publication Number Publication Date
CN117376865A true CN117376865A (en) 2024-01-09

Family

ID=89401324

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311251485.7A Pending CN117376865A (en) 2023-09-26 2023-09-26 Electronic license plate based on CAT1 and Beidou positioning and system thereof

Country Status (1)

Country Link
CN (1) CN117376865A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003198569A (en) * 2001-10-17 2003-07-11 Denso Corp Electronic number plate, information system for vehicle and information system
CN104590330A (en) * 2014-12-31 2015-05-06 河南辉煌科技股份有限公司 Wireless shunting locomotive signal and monitoring system and method based on Beidou satellite navigation
CN108312984A (en) * 2017-12-28 2018-07-24 浙江中新长清信息科技有限公司 Electronic license, platform based on eMTC and system
CN213342695U (en) * 2020-12-02 2021-06-01 重庆盘古美天物联网科技有限公司 Electronic license plate device based on Beidou positioning technology
CN116576877A (en) * 2023-06-19 2023-08-11 淮阴工学院 Positioning and path tracking method for outdoor unmanned cleaning vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003198569A (en) * 2001-10-17 2003-07-11 Denso Corp Electronic number plate, information system for vehicle and information system
CN104590330A (en) * 2014-12-31 2015-05-06 河南辉煌科技股份有限公司 Wireless shunting locomotive signal and monitoring system and method based on Beidou satellite navigation
CN108312984A (en) * 2017-12-28 2018-07-24 浙江中新长清信息科技有限公司 Electronic license, platform based on eMTC and system
CN213342695U (en) * 2020-12-02 2021-06-01 重庆盘古美天物联网科技有限公司 Electronic license plate device based on Beidou positioning technology
CN116576877A (en) * 2023-06-19 2023-08-11 淮阴工学院 Positioning and path tracking method for outdoor unmanned cleaning vehicle

Similar Documents

Publication Publication Date Title
CN108701377B (en) Vehicle parking and mass transit beacon system
CN109743679B (en) Differential positioning system for satellite navigation and implementation method thereof
CN109064735B (en) Hybrid electronic fence-based bicycle returning method
KR101041157B1 (en) Apparatus and method for sharing assistance data between a-gps teminal and gps teminal
US20160370470A1 (en) On-board unit and spoofing detecting method
US9413537B2 (en) Information update system and method, vehicle, charger and server apparatus
US11095660B2 (en) Blockchain enabled encryption
CN108510357B (en) Improved control method and device for shared bicycle intelligent lock framework
Wei et al. A cost-effective decentralized vehicle remote positioning and tracking system using BeiDou Navigation Satellite System and Mobile Network
AU2008201208B2 (en) Method for implementing home zone application in mobile communication networks
WO2015118817A1 (en) Navigation message authentication system, reception terminal, and authentication processing device
CN117376865A (en) Electronic license plate based on CAT1 and Beidou positioning and system thereof
US20180261018A1 (en) Motorway toll system and method for granting access of a user vehicle to a motorway
CN110782693B (en) Positioning method, device and equipment
WO2023200939A1 (en) System and method for high accuracy location determination and energy dispensing
CN110632631A (en) Special vehicle-mounted GNSS signal compensation device, positioning system and method
US11080509B2 (en) Systems and methods for onboard fraud detection in a transportation service
CN110691320B (en) Positioning data processing method, mobile terminal and positioning system
KR102411530B1 (en) Method and apparatus to generate gnss jamming signal data in car
US8868742B2 (en) Method for communication between a terminal and a server
CN112333703B (en) ETC-based platform operation vehicle security authentication system and method
KR20150113521A (en) System and method for user authentication using location information at mobile PaaS cloud system
CN210670575U (en) ADS-B anti-interference anti-cheating multi-station system
WO2022059257A1 (en) Information processing method, information processing device, and information processing program
CN216061820U (en) Safety encrypted fire hydrant system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination