CN112614251A - Digital vehicle key starting and sharing system and method - Google Patents
Digital vehicle key starting and sharing system and method Download PDFInfo
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- CN112614251A CN112614251A CN202011351516.2A CN202011351516A CN112614251A CN 112614251 A CN112614251 A CN 112614251A CN 202011351516 A CN202011351516 A CN 202011351516A CN 112614251 A CN112614251 A CN 112614251A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00896—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys specially adapted for particular uses
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- Lock And Its Accessories (AREA)
Abstract
The invention discloses a digital vehicle key starting and sharing system and a method, wherein the system comprises: the digital car key issuing management system is used for managing at least one car and a digital car key matched with the car and having an NFC function, one car and the digital car key correspond to one user, wherein the digital car key issuing management system stores relevant information of all the users, the digital car key stores relevant information of the corresponding user written by the digital car key issuing management system, and the relevant information comprises: user information, vehicle information, and vehicle key information. The invention integrates the vehicle key function into the terminal equipment with the NFC function, and is not influenced by a battery. The vehicle owner can normally use the vehicle through the NFC mobile phone, thereby reducing the number of articles carried out, reducing the influence frequency of the battery and reducing the potential safety hazard. Meanwhile, the vehicle owner can authorize the mobile terminal of the friend to use the vehicle through the mobile equipment, and the vehicle sharing is facilitated.
Description
Technical Field
The invention relates to the fields of automobile application, mobile communication and information security, in particular to a digital automobile key starting and sharing system and method.
Background
The car keys currently on the market are mechanical keys, remote control keys and induction keys 3 in large category.
The early automobile key is a mechanical key, is essentially a metal plate, is opened by turning the key, is ignited by turning the key, has the same function as the key on a common door lock, and does not have any scientific and technological elements. This key just easily duplicates, and the security is lower, can not find the lockhole easily under the dim condition of light, has certain inconvenience in the use, only exists in some low-end motorcycle types at present.
Remote keys were later developed that incorporated keys with mechanical keys that were folded for aesthetic purposes. The automobile door can be opened or closed by pressing a key button in a communication range, the automobile window can be lifted, the key of part of the automobile can realize trunk opening and remote engine starting, the typical communication distance of the key is 10-100 meters, and most automobile drivers still need to twist the key to realize the engine starting function after getting on the automobile. The key has the greatest advantages that the key is not limited by light rays, does not need to find a lock hole, can be unlocked and locked conveniently in a long distance, and is the current mainstream car key type. The remote control key needs to be supported by a battery and depends on UHF communication (315MHz or 433MHz), the remote control key initiates the UHF communication after a button is pressed down, an automobile antenna receives a microwave signal, and an actuator of a system executes an opening/closing function after a signal code is identified by an on-board controller. The key is limited by the volume of the key, the key is limited, the key function is limited, and the function emphasis points of manufacturers are also different.
Due to the long transmission distance, the remote control key has the safety problem that the vehicle cannot locate the position of the key, cannot judge whether the microwave signal is directly sent out by the vehicle key or not and has the possibility of being attacked by a relay. The relay equipment can receive the key microwave data and forwards the key microwave data out in an original mode, so that the signal transmission distance is enlarged, the relay equipment only collects signals sent by the vehicle key in the process, the signal content is not changed, and the signal command can still be normally executed after the vehicle receives the information without decrypting and destroying the communication protocol. By utilizing the characteristic, a thief can trigger a key to send a signal to open a vehicle door or even start an engine at a remote place by illegally installing relay equipment.
And a sensing key appears later, and the key is generally arranged on a high-end vehicle type and matched with a keyless entry system of a vehicle, so that the vehicle can be unlocked and started by one key without picking out the key. The induction key mainly adopts RFID technology (from 120KHz to 135KHz), when the vehicle is in a locked state, the induction key periodically sends out a detection signal, when the induction key appears in a signal range (1-2 meters in an active mode), a response is given, matching is completed, and the vehicle state is automatically changed from locking to unlocking. The key is not taken out frequently, accidents that the user does not know where the key is put or the key is lost occasionally occur, and once the power of the key goes wrong, the keyless entry function cannot be used normally.
The above three keys are required to be carried about in the use process of the vehicle, the remote control key has certain safety defects, the remote control key or the induction key is supported by a battery, and the function is influenced when the electric quantity is insufficient. In addition, if the owner wants to lend the vehicle to a friend for use, the owner must hand the vehicle key into the hands of the friend, and the owner cannot normally use the vehicle without the key, so that the use is not convenient enough. Therefore, there is a need for a digital car key capable of being shared, which solves the above technical problems, realizes convenient travel, reduces interference of external factors, and improves product stability.
Disclosure of Invention
In view of the defects in the prior art, an object of the present invention is to provide a digital car key starting and sharing system and method, which integrate the car key function into a terminal device (such as an NFC mobile phone) with an NFC function by using a wireless communication technology and a security chip technology, and are not affected by a battery. The vehicle owner can normally use the vehicle through the NFC mobile phone, thereby reducing the number of articles carried out, reducing the influence frequency of the battery and reducing the potential safety hazard. Meanwhile, the vehicle owner can authorize the mobile terminal of the friend to use the vehicle through the mobile equipment, and the vehicle sharing is facilitated.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a digital car key start and share system, comprising: the digital car key issuing management system is used for managing at least one car and a digital car key matched with the car, and one car and the digital car key thereof correspond to one user; the digital car key is a terminal which has an NFC function and is provided with an application program provided by a car manufacturer, and the digital car key interacts with the digital car key issuing management system through the application program;
a first NFC card reader is installed in a door handle of each vehicle, a second NFC card reader is installed in a center console, wherein the first NFC card reader and the second NFC card reader are both connected with a vehicle-mounted control unit of the vehicle, are both bound with corresponding digital vehicle keys, are both in time synchronization with the digital vehicle key issuing management system, and store related information of corresponding users written by the digital vehicle key issuing management system; wherein the related information comprises: user information, vehicle information, and vehicle key information;
the first NFC card reader is used for reading and verifying relevant information in the bound digital car key in the induction range, and after the verification is passed, the car door is controlled to be opened and closed through the vehicle-mounted control unit;
and the second NFC card reader is used for reading and verifying the related information in the bound digital car key in the induction range based on the key searching command sent by the vehicle-mounted control unit, and controlling the engine to start through the vehicle-mounted control unit after the verification is passed.
Further, in the above digital vehicle key starting and sharing system, the related information further includes key information, and the key information is calculated from the user information and the vehicle information.
Further, according to the digital car key starting and sharing system, the first NFC card reader is composed of a first MCU unit, a first SE unit, and a first NFC unit, and both the first SE unit and the first NFC unit are connected to the first MCU unit; the first NFC reader is specifically configured to:
the first NFC unit is used for reading relevant information in a bound digital vehicle key in a sensing range and transmitting the relevant information to the first MCU unit, the first SE unit is used for verifying the relevant information in the bound digital vehicle key in the sensing range, after the verification is passed, an unlocking/locking instruction is sent to the vehicle-mounted control unit through the first MCU unit, the vehicle-mounted control unit controls the vehicle door to be opened and closed based on the unlocking/locking instruction, and the relevant information comprises: user information, vehicle information, and vehicle key information.
Further, according to the digital car key starting and sharing system, the second NFC card reader is composed of a second MCU unit, a second SE unit, and a second NFC unit, and both the second SE unit and the second NFC unit are connected to the second MCU unit; the second NFC reader is specifically configured to:
based on a key searching instruction sent by the vehicle-mounted control unit, the second MCU unit controls the second NFC unit to read relevant information in the bound digital vehicle key in the sensing range, the second SE unit verifies the relevant information in the bound digital vehicle key in the sensing range, after the verification is passed, the second MCU unit sends key state information to the vehicle-mounted control unit, the vehicle-mounted control unit controls an engine to start based on the key state information, and the relevant information comprises: user information, vehicle information, and vehicle key information.
Further, the digital car key starting and sharing system as described above, said system further configured to:
the user sends application information to the digital car key issuing management system through the application program, wherein the application information comprises but is not limited to authority and effective time;
the digital car key issuing management system generates a temporary authentication code based on the application information and the related information retained by the user, and returns the temporary authentication code to the user;
the user sends the temporary authentication code to a non-user terminal, wherein the non-user terminal has an NFC function and is provided with an application program provided by the automobile factory;
the non-user inputs the temporary authentication code into an application program installed on a terminal of the non-user, the non-user interacts with the digital car key issuing management system through the application program installed on the terminal of the non-user, and after the interaction is completed, the terminal of the non-user can be used as a temporary digital car key of the car of the user to use the car of the user;
and before the non-user uses the vehicle of the user through the temporary digital vehicle key, a first NFC reader and a second NFC reader in the vehicle of the user verify the validation time, and the temporary digital vehicle key is allowed to use the vehicle of the user only after verification is passed.
A digital vehicle key starting and sharing method comprises the following steps:
s100, writing relevant information of a user into a digital car key of the user and a first NFC card reader and a second NFC card reader in a vehicle of the user through a digital car key issuing management system of a car factory, wherein the relevant information comprises: the first NFC card reader is located in a door handle of the vehicle, the second NFC card reader is located in a center console of the vehicle, the first NFC card reader and the second NFC card reader are both bound with the digital vehicle key, are both in time synchronization with the digital vehicle key issuing management system and are both connected with a vehicle-mounted control unit in the vehicle; the digital car key is a terminal which has an NFC function and is provided with an application program provided by a car manufacturer, and the digital car key interacts with the digital car key issuing management system through the application program;
s200, reading and verifying relevant information in the digital car key in the induction range through the first NFC card reader, and controlling the car door to open and close through the vehicle-mounted control unit after the verification is passed;
s300, reading and verifying relevant information in the digital car key in the induction range through the second NFC card reader based on a key searching command sent by the vehicle-mounted control unit, and controlling the engine to start through the vehicle-mounted control unit after the verification is passed.
Further, according to the digital car key starting and sharing method, the related information further includes key information, and the key information is calculated from the user information and the car information.
Further, according to the digital car key starting and sharing method, the first NFC card reader is composed of a first MCU unit, a first SE unit, and a first NFC unit, and both the first SE unit and the first NFC unit are connected to the first MCU unit;
s200 comprises the following steps:
reading relevant information in the digital car key in an induction range through the first NFC unit and transmitting the relevant information to the first MCU unit, verifying the relevant information in the digital car key through the first SE unit, and sending an unlocking/locking instruction to the vehicle-mounted control unit through the first MCU unit after the verification is passed, wherein the vehicle-mounted control unit controls the car door to be opened and closed based on the unlocking/locking instruction, and the relevant information comprises: user information, vehicle information, and vehicle key information.
Further, according to the digital car key starting and sharing method, the second NFC card reader is composed of a second MCU unit, a second SE unit, and a second NFC unit, and both the second SE unit and the second NFC unit are connected to the second MCU unit;
s200 comprises the following steps:
based on a key searching instruction sent by the vehicle-mounted control unit, the second MCU unit controls the second NFC unit to read relevant information in the digital vehicle key in an induction range, the second SE unit verifies the relevant information in the digital vehicle key, after the verification is passed, the second MCU unit sends key state information to the vehicle-mounted control unit, the vehicle-mounted control unit controls an engine to start based on the key state information, and the relevant information comprises: user information, vehicle information, and vehicle key information.
Further, the digital car key starting and sharing method as described above further includes:
s400, the user sends application information to the digital car key issuing management system through the application program, wherein the application information comprises but is not limited to authority and effective time;
s500, the digital vehicle key issuing management system generates a temporary authentication code based on the application information and the related information retained by the user, and returns the temporary authentication code to the user;
s600, the user sends the temporary authentication code to a non-user terminal, wherein the non-user terminal has an NFC function and is provided with an application program provided by the automobile factory;
s700, the non-user inputs the temporary authentication code into an application program installed on a terminal of the non-user, the non-user interacts with the digital car key issuing management system through the application program installed on the terminal of the non-user, and after the interaction is completed, the terminal of the non-user can be used as a temporary digital car key of the vehicle of the user to use the vehicle of the user;
s800, before the non-user uses the vehicle of the user through the temporary digital car key, a first NFC card reader and a second NFC card reader in the vehicle of the user verify the effective time, and the temporary digital car key is allowed to use the vehicle of the user only after the verification is passed.
The invention has the beneficial effects that: in the invention, a digital car key used by a user is issued when a vehicle passes a client through a digital car key issuing management system, vehicle information, user information and key information are written into 2 NFC card readers built in the vehicle, and key information is encrypted and stored locally. After the NFC card reader reads the digital car key, a series of verifications are carried out, and after the verification is passed, the car door can be opened and the engine can be started. The user registers the account in digital car key issuing management system, through terminal application to digital car key issuing management system application interim authentication code, the system generates interim authentication code according to the information that the customer stayed, this authentication code can share for friend's use, friend uses the terminal that has the NFC function, the application that the installation car factory provided, input interim authentication code, generate interim digital car key, friend can open the door and start the engine through interim digital car key promptly.
Drawings
Fig. 1 is a schematic structural diagram of a digital car key starting and sharing system according to an embodiment of the present invention;
fig. 2 is a schematic view of a digital car key start-up and sharing system according to an embodiment of the present invention;
FIG. 3 is a sharing diagram of a digital vehicle key start and sharing system according to an embodiment of the present invention;
FIG. 4 is a flow chart illustrating a digital car key start method according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a digital car key sharing method according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1, an embodiment of the present invention provides a digital car key starting and sharing system, including: the digital car key issuing management system 100 is used for managing at least one car 200 and a digital car key 300 which is matched with the car 200 and has an NFC function, one car 200 and the digital car key 300 correspond to one user, wherein the digital car key issuing management system 100 stores relevant information of all users, the digital car key 300 stores relevant information of the corresponding user written by the digital car key issuing management system 100, the digital car key 300 is a terminal which has the NFC function and is provided with an application program provided by a car manufacturer, and the digital car key 300 interacts with the digital car key issuing management system 100 through the application program. A first NFC card reader is installed in a door handle of each vehicle 200, and a second NFC card reader is installed in a center console, wherein the first NFC card reader and the second NFC card reader are both connected to a vehicle-mounted control unit in the vehicle, are both bound to corresponding digital vehicle keys 300, are both time-synchronized with the digital vehicle key issuance management system 100, and store relevant information of corresponding users. And the first NFC card reader is used for reading and verifying the related information in the bound digital car key 300 in the sensing range, and after the verification is passed, the opening and closing of the door of the vehicle 200 is controlled by the vehicle-mounted control unit. And the second NFC card reader is used for reading and verifying the related information in the bound digital car key 300 in the sensing range based on the key searching command sent by the vehicle-mounted control unit, and controlling the engine of the vehicle 200 to start through the vehicle-mounted control unit after the verification is passed. The related information includes: user information, vehicle information, and vehicle key information. The user information refers to user identity information such as a name, an identification number and the like, the vehicle information refers to vehicle-related information such as a vehicle unique identification code, an engine number and the like, and the vehicle key information includes a vehicle key ID and the like.
In this embodiment, as shown in fig. 2, the first NFC card reader is composed of a first MCU unit, a first SE unit, and a first NFC unit, and both the first SE unit and the first NFC unit are connected to the first MCU unit. The second NFC card reader is composed of a second MCU unit, a second SE unit and a second NFC unit, and the second SE unit and the second NFC unit are connected with the second MCU unit. The first MCU unit and the second MCU unit are both connected with a vehicle-mounted control unit (BCM).
In order to enable the user to use the digital car key 300 normally, after the user purchases a car, the user needs to register, issue the digital car key, and issue the NFC card reader. User registration: the user becomes a customer of the car factory by a car purchasing mode, and the customer establishes a registered account in the digital car key issuing management system 100 of the car factory and retains user information and vehicle information. The digital car key issuance management system 100 generates and retains key information used by a user from user information, vehicle information, and a root key of the user by using an encryption device. The digital car key 300 issues: the vehicle manufacturer writes the relevant information of the user and a series of certificates into the digital vehicle key 300 of the user through the digital vehicle key issuance management system 100. Issuing by the NFC card reader: the vehicle factory writes the relevant information of the user into the first NFC card reader and the second NFC card reader of the vehicle 200 purchased by the user through the digital vehicle key issuing management system 100, and binds the digital vehicle key 300 of the user in the two card readers. Meanwhile, the time information is written into the real-time clock module of the MCU in the card reader together, so that the card reader and the server corresponding to the digital car key issuing management system 100 establish a time synchronization relationship.
The door handle of the vehicle 200 is in a low power consumption state at ordinary times, the field intensity is closed, a user approaches the vehicle 200 to enable the digital vehicle key 300 to be close to the door handle of the vehicle 200, a first NFC card reader positioned in the door handle senses that the digital key 300 enters the field and finishes the low power consumption state, the field intensity is opened, vehicle information in the digital vehicle key 300 bound in the sensing range is read through an internal first NFC unit and transmitted to a first MCU unit, the vehicle information in the digital vehicle key 300 bound in the sensing range is verified through a first SE unit, after the verification is passed, an unlocking/locking instruction is sent to a vehicle-mounted control unit through the first MCU unit, and the vehicle-mounted control unit controls the opening and closing of the door of the vehicle 200 based on the unlocking/locking instruction. After a user gets on the vehicle, the digital vehicle key 300 is placed on a center console of the vehicle 200, the vehicle-mounted control unit sends a key searching command to the second NFC card reader through the bus after pressing the start button, the second NFC card reader controls the second NFC unit to read user information in the bound digital vehicle key 300 in the sensing range based on the key searching command sent by the vehicle-mounted control unit, the second MCU unit verifies the user information in the bound digital vehicle key 300 in the sensing range, after the verification is passed, key state information is sent to the vehicle-mounted control unit through the second MCU unit, and the vehicle-mounted control unit controls the engine of the vehicle 200 to start based on the key state information. The verification and authentication process of the digital car key comprises the processes of data decryption, certificate verification and the like.
In this embodiment, the digital car key issuance management system 100 operated by the car manufacturer can perform issuing, updating and logout operations on the car owner's digital car key 300, and the car owner can also register in the system and enjoy other services, such as digital car key sharing. In order to realize the sharing of the digital car key, the friends of the car owner are required to have the NFC mobile phone terminals with the same technical parameters, and the NFC mobile phones of the car owner and the friends are all provided with the application program provided by the car manufacturer, and interact with the digital car key issuing management system 100 through the application program. As shown in fig. 3, the vehicle owner sends application information to the digital vehicle key issuing management system 100 through an application program on the terminal, where the application information includes, but is not limited to, authority and validation time, and may also set other functions besides the authority and validation time, and the digital vehicle key issuing management system 100 generates a temporary authentication code according to the application information and related information retained by the vehicle owner, and returns the temporary authentication code to the vehicle owner. The automobile owner transmits the received temporary authentication code to friends, the friends input the temporary authentication code in an application program of a mobile phone application end, interaction is carried out between the application program and the digital automobile key issuing management system 100, after interaction is successful, the NFC mobile phones of the friends have the function of the digital automobile key 300, and the automobile door of the automobile owner can be opened and the engine can be started. Before the vehicle is used, the NFC card reader of the vehicle can verify the validation time in the temporary digital vehicle key of the friend, the vehicle can be used formally only after the verification is passed, if the validation time is exceeded, the vehicle cannot be used, and the NFC mobile phone of the friend cannot use the vehicle.
As shown in fig. 4, an embodiment of the present invention provides a digital car key starting method, including:
in order to enable the digital car key of the user to be used normally, after the user purchases the car, the user registration, the digital car key issuance, and the NFC card reader issuance need to be performed first.
S101, writing relevant information of a user into a digital car key of the user and a first NFC card reader and a second NFC card reader in a vehicle of the user through a digital car key issuing management system of a car factory, wherein the relevant information comprises: user information, vehicle information, and vehicle key information.
The first NFC card reader and the second NFC card reader are both bound with a digital car key, are both in time synchronization with a digital car key issuing management system and are both connected with a vehicle-mounted control unit in the vehicle; the digital car key is a terminal which has an NFC function and is provided with an application program provided by a car manufacturer, and the digital car key interacts with the digital car key issuing management system through the application program. The digital car key issuing management system is used for managing at least one car and a digital car key matched with the car and having an NFC function, and one car and the digital car key thereof correspond to one user. The related information further includes key information calculated from the user information and the vehicle information.
After the module is issued, a user can normally use the digital car key, a first NFC card reader is installed in a door handle of the vehicle, the door handle is in a low power consumption state at ordinary times, the field intensity is closed, when the user approaches the vehicle and presses the digital car key close to the door handle of the vehicle, the first NFC card reader located in the door handle induces the digital car key to enter the vehicle, the low power consumption state is ended, and the field intensity is opened.
And S102, reading and verifying relevant information in the digital car key in the induction range through the first NFC card reader, and controlling the car door to open and close through the vehicle-mounted control unit after the verification is passed.
Preferably, the first NFC card reader may be composed of a first MCU unit, a first SE unit, and a first NFC unit, and both the first SE unit and the first NFC unit are connected to the first MCU unit.
S102 includes:
s102a, reading relevant information in the digital car key in the sensing range through the first NFC unit and transmitting the relevant information to the first MCU unit, verifying the relevant information in the digital car key through the first SE unit, sending an unlocking/locking instruction to the vehicle-mounted control unit through the first MCU unit after the verification is passed, and controlling the car door to be opened and closed through the vehicle-mounted control unit based on the unlocking/locking instruction. The related information includes: user information, vehicle information, and vehicle key information.
After a user opens a car door and enters the car, the digital car key is placed on a central console of the car, and a key searching instruction is sent to a second NFC card reader in the central console through a bus by a vehicle-mounted control unit after a start button is pressed.
S103, reading and verifying relevant information in the digital car key in the induction range through a second NFC card reader based on a key searching command sent by the vehicle-mounted control unit, and controlling the engine to start through the vehicle-mounted control unit after the verification is passed.
Preferably, the second NFC card reader is composed of a second MCU unit, a second SE unit, and a second NFC unit, and both the second SE unit and the second NFC unit are connected to the second MCU unit.
S103 includes:
s103a, based on the key searching instruction sent by the vehicle-mounted control unit, the second MCU unit controls the second NFC unit to read the related information in the digital vehicle key in the sensing range, the second SE unit verifies the related information in the digital vehicle key, after the verification is passed, the second MCU unit sends key state information to the vehicle-mounted control unit, and the vehicle-mounted control unit controls the engine to start based on the key state information. The related information includes: user information, vehicle information, and vehicle key information.
As shown in fig. 5, the present invention further provides a method for sharing a digital car key, including:
in order to enable the digital car key of the user to be used normally, after the user purchases the car, the user registration, the digital car key issuance, and the NFC card reader issuance need to be performed first. After the digital car key is issued, the digital car key of the user can be normally used.
S201, writing relevant information of a user into a digital car key of the user and a first NFC card reader and a second NFC card reader in a vehicle of the user through a digital car key issuing management system of a car factory, wherein the relevant information comprises: user information, vehicle information, and vehicle key information.
In order to realize the sharing of the digital car key, the friends of the user are required to have the NFC mobile phone terminals with the same technical parameters, and the NFC mobile phones of the user and the friends are provided with application programs provided by car manufacturers, and interact with the digital car key issuing management system through the application programs. The application program installed on the user terminal comprises a vehicle key sharing menu, the user generates application information after selecting the right and the valid time period and sends the application information to the digital vehicle key issuing management system, and the digital vehicle key issuing management system can generate a temporary authentication code and return the temporary authentication code to the user after receiving the application information.
S202, the user sends application information to the digital car key issuing management system through the application program, wherein the application information comprises authority and effective time.
S203, the digital vehicle key issuing management system generates a temporary authentication code based on the application information and the related information retained by the user, and returns the temporary authentication code to the user.
The digital car key issuing management system generates a temporary authentication code based on application information sent by a user and related information retained by the user, and returns the temporary authentication code to the user. At this time, the user can let his friend use his vehicle based on the provisional authentication code.
And S204, the user sends the temporary authentication code to the terminal of the friend.
The terminal of the friend has an NFC function and is provided with an application program provided by a car factory.
S205, the friend inputs the temporary authentication code into the application program installed on the terminal of the friend, the application program installed on the terminal of the friend interacts with the digital car key issuing management system, and after the interaction is completed, the terminal of the friend can be used as the temporary digital car key of the car of the user to use the car of the user.
And if the temporary authentication code is consistent with the temporary authentication code which is sent to the user before, the verification is passed, and the relevant information and the validation time of the user are sent to the terminal of the friend, so that the terminal of the friend can be used as the temporary digital car key of the vehicle of the user to use the vehicle of the user. The related information includes: user information, vehicle information, and vehicle key information.
Before the friend uses the user's vehicle through the temporary digital vehicle key, the first NFC card reader and the second NFC card reader in the user's vehicle verify the validity time, and the temporary digital vehicle key is allowed to use the user's vehicle only after the verification passes. The friends of the user can open the vehicle door of the user vehicle and start the engine within the effective time through the temporary digital vehicle key, and the vehicle cannot be used after the effective time.
After a friend of a user obtains a temporary digital car key, a door handle of a car is provided with a first NFC card reader which is in a low power consumption state at ordinary times, the field intensity is closed, when the friend approaches the car and presses the temporary digital car key close to the door handle of the car, the first NFC card reader in the door handle induces the temporary digital car key to enter the field, the low power consumption state is ended, and the field intensity is opened.
S206, reading and verifying relevant information and effective time in the temporary digital car key in the induction range through the first NFC card reader, and controlling the car door to open and close through the vehicle-mounted control unit after the verification is passed.
After a friend opens a car door and enters a car, the temporary digital car key is placed on a central console of the car, and a key searching instruction is sent to a second NFC card reader in the central console through a bus by a vehicle-mounted control unit after a start button is pressed.
And S207, reading and verifying relevant information and effective time in the temporary digital car key in the induction range through a second NFC card reader based on a key searching command sent by the vehicle-mounted control unit, and controlling the engine to start through the vehicle-mounted control unit after the verification is passed.
The shared automobile key provided by the invention can reduce the number of carried articles, is convenient to go out, reduces the interference of external factors, improves the stability of products and is convenient to live.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (10)
1. A digital car key start and share system, comprising: the digital car key issuing management system is used for managing at least one car and a digital car key matched with the car, and one car and the digital car key thereof correspond to one user; the digital car key is a terminal which has an NFC function and is provided with an application program provided by a car manufacturer, and the digital car key interacts with the digital car key issuing management system through the application program;
a first NFC card reader is installed in a door handle of each vehicle, a second NFC card reader is installed in a center console, wherein the first NFC card reader and the second NFC card reader are both connected with a vehicle-mounted control unit of the vehicle, are both bound with corresponding digital vehicle keys, are both in time synchronization with the digital vehicle key issuing management system, and store related information of corresponding users written by the digital vehicle key issuing management system; wherein the related information comprises: user information, vehicle information, and vehicle key information;
the first NFC card reader is used for reading and verifying relevant information in the bound digital car key in the induction range, and after the verification is passed, the car door is controlled to be opened and closed through the vehicle-mounted control unit;
and the second NFC card reader is used for reading and verifying the related information in the bound digital car key in the induction range based on the key searching command sent by the vehicle-mounted control unit, and controlling the engine to start through the vehicle-mounted control unit after the verification is passed.
2. The digital vehicle key startup and sharing system of claim 1, wherein the related information further comprises key information, the key information being calculated from the user information and the vehicle information.
3. The digital vehicle key starting and sharing system according to claim 1, wherein the first NFC card reader is composed of a first MCU unit, a first SE unit, and a first NFC unit, both the first SE unit and the first NFC unit being connected to the first MCU unit; the first NFC reader is specifically configured to:
the first NFC unit is used for reading relevant information in a bound digital vehicle key in a sensing range and transmitting the relevant information to the first MCU unit, the first SE unit is used for verifying the relevant information in the bound digital vehicle key in the sensing range, after the verification is passed, an unlocking/locking instruction is sent to the vehicle-mounted control unit through the first MCU unit, the vehicle-mounted control unit controls the vehicle door to be opened and closed based on the unlocking/locking instruction, and the relevant information comprises: user information, vehicle information, and vehicle key information.
4. The digital vehicle key starting and sharing system according to claim 1, wherein the second NFC card reader is composed of a second MCU unit, a second SE unit, and a second NFC unit, and both the second SE unit and the second NFC unit are connected to the second MCU unit; the second NFC reader is specifically configured to:
based on a key searching instruction sent by the vehicle-mounted control unit, the second MCU unit controls the second NFC unit to read relevant information in the bound digital vehicle key in the sensing range, the second SE unit verifies the relevant information in the bound digital vehicle key in the sensing range, after the verification is passed, the second MCU unit sends key state information to the vehicle-mounted control unit, the vehicle-mounted control unit controls an engine to start based on the key state information, and the relevant information comprises: user information, vehicle information, and vehicle key information.
5. The digital vehicle key startup and sharing system of claims 1-4 wherein the system is further configured to:
the user sends application information to the digital car key issuing management system through the application program, wherein the application information comprises but is not limited to authority and effective time;
the digital car key issuing management system generates a temporary authentication code based on the application information and the related information retained by the user, and returns the temporary authentication code to the user;
the user sends the temporary authentication code to a non-user terminal, wherein the non-user terminal has an NFC function and is provided with an application program provided by the automobile factory;
the non-user inputs the temporary authentication code into an application program installed on a terminal of the non-user, the non-user interacts with the digital car key issuing management system through the application program installed on the terminal of the non-user, and after the interaction is completed, the terminal of the non-user can be used as a temporary digital car key of the car of the user to use the car of the user;
and before the non-user uses the vehicle of the user through the temporary digital vehicle key, a first NFC reader and a second NFC reader in the vehicle of the user verify the validation time, and the temporary digital vehicle key is allowed to use the vehicle of the user only after verification is passed.
6. A digital car key starting and sharing method is characterized by comprising the following steps:
s100, writing relevant information of a user into a digital car key of the user and a first NFC card reader and a second NFC card reader in a vehicle of the user through a digital car key issuing management system of a car factory, wherein the relevant information comprises: the first NFC card reader is located in a door handle of the vehicle, the second NFC card reader is located in a center console of the vehicle, the first NFC card reader and the second NFC card reader are both bound with the digital vehicle key, are both in time synchronization with the digital vehicle key issuing management system and are both connected with a vehicle-mounted control unit in the vehicle; the digital car key is a terminal which has an NFC function and is provided with an application program provided by a car manufacturer, and the digital car key interacts with the digital car key issuing management system through the application program;
s200, reading and verifying relevant information in the digital car key in the induction range through the first NFC card reader, and controlling the car door to open and close through the vehicle-mounted control unit after the verification is passed;
s300, reading and verifying relevant information in the digital car key in the induction range through the second NFC card reader based on a key searching command sent by the vehicle-mounted control unit, and controlling the engine to start through the vehicle-mounted control unit after the verification is passed.
7. The digital vehicle key startup and sharing method according to claim 6, wherein the related information further includes key information, the key information being calculated from the user information and the vehicle information.
8. The digital vehicle key starting and sharing method according to claim 6, wherein the first NFC card reader is composed of a first MCU unit, a first SE unit and a first NFC unit, and both the first SE unit and the first NFC unit are connected with the first MCU unit;
s200 comprises the following steps:
reading relevant information in the digital car key in an induction range through the first NFC unit and transmitting the relevant information to the first MCU unit, verifying the relevant information in the digital car key through the first SE unit, and sending an unlocking/locking instruction to the vehicle-mounted control unit through the first MCU unit after the verification is passed, wherein the vehicle-mounted control unit controls the car door to be opened and closed based on the unlocking/locking instruction, and the relevant information comprises: user information, vehicle information, and vehicle key information.
9. The digital vehicle key starting and sharing method according to claim 6, wherein the second NFC card reader is composed of a second MCU unit, a second SE unit and a second NFC unit, and both the second SE unit and the second NFC unit are connected with the second MCU unit;
s200 comprises the following steps:
based on a key searching instruction sent by the vehicle-mounted control unit, the second MCU unit controls the second NFC unit to read relevant information in the digital vehicle key in an induction range, the second SE unit verifies the relevant information in the digital vehicle key, after the verification is passed, the second MCU unit sends key state information to the vehicle-mounted control unit, the vehicle-mounted control unit controls an engine to start based on the key state information, and the relevant information comprises: user information, vehicle information, and vehicle key information.
10. The digital vehicle key starting and sharing method according to any one of claims 6 to 9, wherein the method further comprises:
s400, the user sends application information to the digital car key issuing management system through the application program, wherein the application information comprises but is not limited to authority and effective time;
s500, the digital vehicle key issuing management system generates a temporary authentication code based on the application information and the related information retained by the user, and returns the temporary authentication code to the user;
s600, the user sends the temporary authentication code to a non-user terminal, wherein the non-user terminal has an NFC function and is provided with an application program provided by the automobile factory;
s700, the non-user inputs the temporary authentication code into an application program installed on a terminal of the non-user, the non-user interacts with the digital car key issuing management system through the application program installed on the terminal of the non-user, and after the interaction is completed, the terminal of the non-user can be used as a temporary digital car key of the vehicle of the user to use the vehicle of the user;
s800, before the non-user uses the vehicle of the user through the temporary digital car key, a first NFC card reader and a second NFC card reader in the vehicle of the user verify the effective time, and the temporary digital car key is allowed to use the vehicle of the user only after the verification is passed.
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