System, method and medium for realizing car nfc digital key, car nfc digital key

Abstract

The invention provides an automobile NFC digital key realization system, comprising: digital key: using the digital key to communicate with the NFC card reader module, and transmitting data to the NFC card reader module; NFC card reader module: receiving the digital key transmission The data is authenticated to verify whether the digital key has the authority to control the vehicle; keyless entry and start module: the keyless entry and start module receives the authentication result of the NFC card reader module through the CAN bus to decide whether to perform start control; the car body Control module: the vehicle body control module receives the NFC card reader module execution instructions through the CAN bus. The invention realizes the reduction of production cost and improves the authentication speed when the user swipes the card outside the vehicle.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular, to a vehicle NFC digital key realization system, method and medium, and a vehicle NFC digital key. Background technique [0002] Car NFC digital key is a near-field communication technology based on NFC. Users use the NFC function of mobile phones or NFC cards to control the car. Car NFC digital keys generally include the main functions of using mobile phone NFC or NFC cards to lock and unlock the vehicle, and one-key start control of the vehicle. [0003] Deploy two NFC card reader modules on the car, one is deployed outside the car, such as the exterior rearview mirror, for user access, and the other is deployed inside the car, such as the center console, for one-key start function. Both inside and outside the car communicate with the NFC card reader module. The user uses the mobile phone or card to swipe the card outside the car. After the card reader ou...

AI Technical Summary

Problems solved by technology

The shortcomings of the aforementioned prior art are: first, the vehicle needs to deploy two NFC card reader modules inside and outside the vehicle, which will cause high costs; When swiping the card, the card reader outside the car needs to transmit the mobile phone or card data to the card reader inside the car through the CAN bus for authentication. Due to the low data transmission efficiency of the CAN bus, this will slow down the authentication speed when the user swipes the card outside the car.

Although this prior art has improved the success rate of NFC digital key remote unlocking and the business success rate of car owners using NFC digital key, it still has the disadvantages of the above prior art, such as requiring two NFC card readers, cost High; and the data transmission efficiency of the CAN bus is low, which will lead to slow authentication when the user swipes the card outside the car

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