Automobile NFC key pairing system and pairing method thereof

Abstract

The present invention discloses an automobile NFC key pairing system and a pairing method thereof. The system includes an electric inspection device, a production line key system, a production line NFC card, a vehicle-side NFC module and an NFC key. The electric inspection device is used to write the vehicle VIN code into the vehicle-side NFC module and synchronize the vehicle VIN code to the production line key system; the production line key system is used to randomly generate an NFC key, and write the randomly generated NFC key and the received vehicle VIN code into the NFC key, and import the randomly generated NFC key into the production line NFC card; the production line NFC card is used to write the received NFC key into the vehicle-side NFC module; the vehicle-side NFC module is used to compare the received NFC key and the vehicle VIN code with the NFC key and the vehicle VIN code in the NFC key when the NFC key is connected to the signal, so as to complete the pairing. The NFC key of the present invention can complete the pairing and updating without the need for a network or a cipher machine, and has low cost, improves the car owner's car use experience, and has good economic and practical value.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile communication, and in particular to an automobile NFC key pairing system and a pairing method thereof. Background Art

[0002] Digital vehicle keys are becoming more and more popular, and the hassle of carrying car keys is slowly being complained by car owners. Therefore, more and more users hope to have simple smart keys that are not only easy to carry, but also have a sense of technology or are personalized. Therefore, a variety of smart digital keys have appeared on the market, such as Bluetooth keys, NFC keys, fingerprint keys, face recognition keys, mobile app vehicle control, etc. The secret key generation of these digital keys has a common feature, that is, the enterprise platform and the vehicle transmit the secret key through the network connection to achieve the generation and update of the secret key. When writing the key to the NFC module on the vehicle, a cryptographic machine is used to write the secret key offline. The cost of the cryptographic machine is high. If the vehicle is in a place without network signal, the key pairing cannot be completed. Summary of the invention

[0003] The object of the present invention is to provide an automobile NFC key pairing system and a pairing method thereof to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: an automobile NFC key pairing system, the system comprising an electrical inspection device, a production line key system, a production line NFC card, a vehicle-side NFC module and an NFC key,

[0005] The electrical inspection equipment is used to write the vehicle VIN code into the vehicle-side NFC module and synchronize the vehicle VIN code to the production line key system;

[0006] The production line key system is used to randomly generate an NFC key, write the randomly generated NFC key and the received vehicle VIN code into the NFC key, and import the randomly generated NFC key into the production line NFC card;

[0007] The production line NFC card is used to write the received NFC key into the vehicle-side NFC module;

[0008] The vehicle-side NFC module is used to compare the received NFC key and vehicle VIN code with the NFC key and vehicle VIN code in the NFC key to complete pairing when the NFC key is connected to it by signal.

[0009] Furthermore, the production line key system includes a key system and an NFC card reader, the NFC card reader is used to identify the NFC key and the production line NFC card, the key system is used to randomly generate an NFC key, write the randomly generated NFC key and the received vehicle VIN code into the NFC key, and import the randomly generated NFC key into the production line NFC card.

[0010] Furthermore, the system also includes an update platform, and the production line key system is also used to upload the randomly generated NFC key and the received vehicle VIN code to the update platform. The update platform is used to write the received NFC key and vehicle VIN code into a blank NFC key, and import the received NFC key into a blank production line NFC card to complete the update of the NFC key.

[0011] Furthermore, the update platform includes a cloud server and a maintenance platform. The cloud server is used to store the received NFC key and vehicle VIN code uploaded by the production line key system, and send the NFC key and vehicle VIN code to the maintenance platform. The maintenance platform is used to write the received NFC key and vehicle VIN code into a blank NFC key, and import the received NFC key into a blank production line NFC card.

[0012] A method for pairing an automobile NFC key, the method comprising:

[0013] The electrical inspection equipment writes the vehicle VIN code into the vehicle-side NFC module and synchronizes the vehicle VIN code to the production line key system;

[0014] The production line key system randomly generates an NFC key, writes the randomly generated NFC key and the received vehicle VIN code into the NFC key, and imports the randomly generated NFC key into the production line NFC card;

[0015] The production line NFC card writes the received NFC key into the vehicle-side NFC module;

[0016] When the NFC key is connected to the vehicle-side NFC module, it will compare the received NFC key and vehicle VIN code with the NFC key and vehicle VIN code in the NFC key to complete the pairing.

[0017] Furthermore, the method also includes: the production line key system uploads the randomly generated NFC key and the received vehicle VIN code to the update platform; after the NFC key is lost, the update platform writes the received NFC key and the vehicle VIN code into a blank NFC key, imports the received NFC key into a blank production line NFC card, and the production line NFC card writes the received NFC key into the vehicle-side NFC module to complete the update of the NFC key.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention writes the vehicle VIN code into the vehicle-side NFC module through the electrical inspection equipment and synchronizes it to the production line key system. The production line key system writes the generated key and the vehicle VIN code into the NFC key. The production line NFC card is used as the medium to import the NFC key generated by the production line key system into the NFC module, so that the NFC key does not require a network or a cipher machine to complete pairing and updating, and the cost is low, which improves the car owner's car usage experience and has good economic and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural block diagram of a car NFC key pairing system according to a specific embodiment of the present invention;

[0020] Figure 2 This is a flow chart of a method for pairing an NFC key for an automobile according to a specific embodiment of the present invention;

[0021] Figure 3 This is a flowchart of the first embodiment of the present invention for pairing an NFC key for a car;

[0022] Figure 4 This is a structural block diagram of a car NFC key pairing system according to a second specific embodiment of the present invention;

[0023] Figure 5 This is a flow chart of a method for pairing an NFC key for an automobile according to a second specific embodiment of the present invention;

[0024] Figure 6 This is a flowchart of automobile NFC key pairing and updating according to the second specific embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Specific embodiment one:

[0027] like Figure 1As shown, this embodiment provides an automobile NFC key pairing system, the system includes an electric inspection device 1, a production line key system 2, a production line NFC card 3, a vehicle-side NFC module 4 and an NFC key 5, wherein the vehicle-side NFC module 4 can be an NFC card reader deployed on the vehicle, which can identify a device or card with an NFC function, and has no key in the initial state, and cannot communicate with other control units of the vehicle body and control the door locks, and the NFC key 5 can be a device or card with an NFC function, and has a blank card in the initial state, has no key information, and cannot control the vehicle;

[0028] The electric inspection device 1 has the function of configuring vehicle offline inspection, and also has the function of reading or writing the vehicle VIN code, which is used to write the vehicle VIN code into the vehicle-side NFC module 4 and synchronize the vehicle VIN code to the production line key system 2;

[0029] The production line key system 2 includes a key system and an NFC card reader. The key system is installed on a terminal device such as a computer. The NFC card reader is connected to a terminal device such as a computer. The key system identifies the NFC key 5 and the production line NFC card through the NFC card reader to randomly generate an NFC key, write the randomly generated NFC key and the received vehicle VIN code into the NFC key 5, and import the randomly generated NFC key into the production line NFC card 3.

[0030] The production line NFC card has a key information transmission function, which is used to write the received NFC key into the vehicle-side NFC module 4;

[0031] The vehicle-side NFC module 4 is used to compare the received NFC key and vehicle VIN code with the NFC key and vehicle VIN code in the NFC key to complete pairing when the NFC key 5 is connected to it by signal. After the pairing is completed, the NFC key 5 can control the door locks of the matching vehicle to realize the door locking and unlocking functions.

[0032] like Figure 2 As shown, this embodiment also provides a method for pairing a car NFC key, the method comprising the following steps:

[0033] S101: The electrical inspection equipment writes the vehicle VIN code into the vehicle-side NFC module and synchronizes the vehicle VIN code to the production line key system;

[0034] S102: The production line key system randomly generates an NFC key, writes the randomly generated NFC key and the received vehicle VIN code into the NFC key, and imports the randomly generated NFC key into the production line NFC card;

[0035] S103: The production line NFC card writes the received NFC key into the vehicle-side NFC module;

[0036] S104: When the NFC key is connected to the vehicle-side NFC module, the vehicle-side NFC module compares the received NFC key and vehicle VIN code with the NFC key and vehicle VIN code in the NFC key to complete pairing.

[0037] Specifically, Figure 3 As shown, after the newly produced vehicle arrives at the electrical inspection station of the electrical inspection equipment 1, the vehicle VIN code is written into the vehicle-side NFC module 4 through the electrical inspection equipment 1, and the vehicle VIN code is synchronized to the production line key system 1. The key system randomly generates an NFC key, identifies the NFC key 5 and the production line NFC card 3 through the NFC card reader, writes the randomly generated NFC key and the received vehicle VIN code into the NFC key 5, imports the randomly generated NFC key into the production line NFC card 3, and uploads it at the same time. The production line NFC card 3 writes the received NFC key into the vehicle-side NFC module 4, and the handheld NFC key 5 touches the vehicle-side NFC module 4 to establish a signal connection until the car body door makes a locking sound, indicating that the car-side NFC module 4 secret key writing is completed, and the NFC key and vehicle VIN code are compared with the NFC key and vehicle VIN code in the NFC key 5. The NFC key 5 performs unlocking verification on the vehicle, proving that the NFC key 5 secret key writing is completed, and paired with the vehicle-side NFC module 4. After pairing is completed, the NFC key 5 can control the door lock of the matching vehicle to realize the door locking and unlocking functions. Specific embodiment 2:

[0039] like Figure 4As shown, the present embodiment provides an automobile NFC key pairing system, which has the same electrical inspection equipment 1, production line key system 2, production line NFC card 3, vehicle-side NFC module 4 and NFC key 5 as the specific embodiment 1. The difference from the specific embodiment 1 is that the system also includes an update platform, and the production line key system 2 is also used to upload the randomly generated NFC key and the received vehicle VIN code to the update platform, and the update platform is used to write the received NFC key and the vehicle VIN code into the blank NFC key 5, and import the received NFC key into the blank production line NFC card 3 to complete the update of the NFC key. In the present embodiment, the update platform includes a cloud server 61 and a maintenance platform 62. The maintenance platform 62 is a 4S shop maintenance platform, and the cloud server 61 is used to store production The received NFC key and vehicle VIN code uploaded by the online key system 2 are sent to the maintenance platform 62. The maintenance platform 62 is used to write the received NFC key and vehicle VIN code into the blank NFC key 5, and import the received NFC key into the blank production line NFC card 3. The production line NFC card 3 writes the received NFC key into the vehicle-side NFC module 4, and updates the key in the vehicle-side NFC module 4. When the new NFC key 5 is connected to the vehicle-side NFC module 4 by signal, the received NFC key and vehicle VIN code are compared with the NFC key and vehicle VIN code in the NFC key to complete the update. After the update, the new NFC key 5 can control the door locks of the matching vehicle to realize the door locking and unlocking functions.

[0040] like Figure 5 As shown, this embodiment provides a method for pairing a car NFC key, the method comprising the following steps:

[0041] S201: The electrical inspection equipment writes the vehicle VIN code into the vehicle-side NFC module and synchronizes the vehicle VIN code to the production line key system;

[0042] S202: The production line key system randomly generates an NFC key, writes the randomly generated NFC key and the received vehicle VIN code into the NFC key, and imports the randomly generated NFC key into the production line NFC card;

[0043] S203: The production line NFC card writes the received NFC key into the vehicle-side NFC module;

[0044] S204: When the NFC key is connected to the vehicle-side NFC module, the vehicle-side NFC module compares the received NFC key and the vehicle VIN code with the NFC key and the vehicle VIN code in the NFC key to complete pairing;

[0045] S205: The production line key system uploads the randomly generated NFC key and the received vehicle VIN code to the update platform. After the NFC key is lost, the update platform writes the received NFC key and vehicle VIN code into a blank NFC key, imports the received NFC key into a blank production line NFC card, and the production line NFC card writes the received NFC key into the vehicle-side NFC module to complete the update of the NFC key.

[0046] Specifically, Figure 6 As shown, after the newly produced vehicle arrives at the electrical inspection station of the electrical inspection equipment 1, the vehicle VIN code is written into the vehicle-side NFC module 4 through the electrical inspection equipment 1, and the vehicle VIN code is synchronized to the production line key system 1, the key system randomly generates an NFC key, identifies the NFC key 5 and the production line NFC card 3 through the NFC card reader, writes the randomly generated NFC key and the received vehicle VIN code into the NFC key 5, imports the randomly generated NFC key into the production line NFC card 3, and uploads the randomly generated NFC key and the received vehicle VIN code to the cloud server 61 at the same time, the cloud server 61 synchronizes the received NFC key and the vehicle VIN code to the maintenance platform 62, the production line NFC card 3 writes the received NFC key into the vehicle-side NFC module 4, holds the NFC key 5 and touches the vehicle-side NFC module 4 to establish a signal connection, until the car body door makes a locking sound, indicating that the car-side NFC module 4 secret key writing is completed, and the NFC key and vehicle VIN code are compared with the NFC key and vehicle VIN code in the NFC key 5 After comparison, the NFC key 5 performs unlocking verification on the vehicle, proving that the secret key writing of the NFC key 5 is completed and paired with the vehicle-side NFC module 4. After the pairing is completed, the NFC key 5 can control the door lock of the matching vehicle to realize the door locking and unlocking functions. When the NFC key 5 is lost, the maintenance personnel only needs to write the NFC key and vehicle VIN code received by the maintenance platform 62 into the blank NFC key 5, import the received NFC key into the blank production line NFC card 3, and write the received NFC key by the production line NFC card 3 into the vehicle-side NFC module 4 to update the key in the vehicle-side NFC module 4. When the new NFC key 5 is connected to the vehicle-side NFC module 4 by signal, the received NFC key and vehicle VIN code are compared with the NFC key and vehicle VIN code in the NFC key to complete the update. After the update, the new NFC key 5 can control the door lock of the matching vehicle to realize the door locking and unlocking functions. At the same time, the maintenance platform 62 can abolish the lost or stolen old NFC key according to customer needs.

[0047] The present invention writes the vehicle VIN code into the vehicle-side NFC module through an electrical inspection device and synchronizes it to the production line key system. The production line key system writes the generated key and the vehicle VIN code into the NFC key. The production line NFC card is used as a medium to import the NFC key generated by the production line key system into the NFC module, so that the NFC key does not require a network or a cipher machine to complete pairing and updating, and the cost is low, which improves the car owner's car usage experience and has good economic and practical value.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A car NFC key pairing system, characterized in that: The system includes electrical inspection equipment, production line key system, production line NFC card, vehicle-side NFC module, NFC key and update platform. The electrical inspection equipment is used to write the vehicle VIN code into the vehicle-side NFC module and synchronize the vehicle VIN code to the production line key system; The production line key system is used to randomly generate an NFC key, write the randomly generated NFC key and the received vehicle VIN code into the NFC key, upload it to the update platform, and import the randomly generated NFC key into the production line NFC card; The production line NFC card is used to write the received NFC key into the vehicle-side NFC module; The vehicle-side NFC module is used to compare the received NFC key and vehicle VIN code with the NFC key and vehicle VIN code in the NFC key to complete pairing when the NFC key is connected to the vehicle-side NFC module. The update platform is used to write the received NFC key and vehicle VIN code into a blank NFC key, import the received NFC key into a blank production line NFC card, and complete the update of the NFC key.

2. The automotive NFC key pairing system according to claim 1, characterized in that: The production line key system includes a key system and an NFC card reader. The NFC card reader is used to identify NFC keys and production line NFC cards. The key system is used to randomly generate an NFC key, write the randomly generated NFC key and the received vehicle VIN code into the NFC key, and import the randomly generated NFC key into the production line NFC card.

3. The automotive NFC key pairing system according to claim 1, characterized in that: The update platform includes a cloud server and a maintenance platform. The cloud server is used to store the received NFC key and vehicle VIN code uploaded by the production line key system, and send the NFC key and vehicle VIN code to the maintenance platform. The maintenance platform is used to write the received NFC key and vehicle VIN code into a blank NFC key, and import the received NFC key into a blank production line NFC card.

4. A method for pairing a car NFC key, characterized in that: The method comprises: The electrical inspection equipment writes the vehicle VIN code into the vehicle-side NFC module and synchronizes the vehicle VIN code to the production line key system; The production line key system randomly generates an NFC key, writes the randomly generated NFC key and the received vehicle VIN code into the NFC key, and uploads it to the update platform, importing the randomly generated NFC key into the production line NFC card; The production line NFC card writes the received NFC key into the vehicle-side NFC module; When the NFC key is connected to the vehicle-side NFC module, the vehicle-side NFC module will compare the received NFC key and vehicle VIN code with the NFC key and vehicle VIN code in the NFC key to complete the pairing; After the NFC key is lost, the update platform will write the received NFC key and vehicle VIN code into a blank NFC key, import the received NFC key into a blank production line NFC card, and the production line NFC card will write the received NFC key into the vehicle-side NFC module to complete the update of the NFC key.

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