Intelligent vehicle lamp data exchange system based on NFC technology

Abstract

The utility model provides an intelligent car lamp data exchange system based on NFC technology, which comprises a car lamp module for controlling the action of a car lamp, the car lamp module comprises a processor, the processor is respectively connected with a data storage module, a first NFC chip and an LED driving chip, the first NFC chip is connected with an antenna, and the LED driving chip is connected with the data storage module. The NFC chip is in data communication with a second NFC chip in the external equipment through the antenna, and the processor receives data of the external equipment and stores the data into the data storage module. According to the utility model, the animation data in the vehicle lamp can be simply and rapidly updated, and mutual transmission of the animation data between vehicles is also facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle light control, and in particular to an intelligent vehicle light data exchange system based on NFC technology. Background Art

[0002] As cars become more and more popular, the types and functions of car lights are becoming more and more diverse. In order to increase car sales, smart car lights that can display animations have emerged. When smart car lights are used, they can usually only display one animation repeatedly. If you want to display other animations, you need to load new animation data.

[0003] Usually when loading headlight data, the headlight module is connected to the vehicle network through a bus, which is relatively closed. New animation data can only be loaded through the vehicle computer upgrade data. The operation is complicated, and animation data cannot be transmitted between vehicles. Utility Model Content

[0004] In view of this, the problem to be solved by the utility model is to provide an intelligent vehicle light data exchange system based on NFC technology, which can simply and quickly update the animation data in the vehicle light and facilitate the mutual transmission of animation data between vehicles.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] An intelligent car light data exchange system based on NFC technology includes a car light module for controlling the operation of the car light, the car light module includes a processor, the processor is respectively connected to a data storage module, a first NFC chip and an LED driving chip, the first NFC chip is connected to an antenna so that the NFC chip can communicate data with a second NFC chip in an external device through the antenna, and the processor receives data from the external device and stores it in the data storage module.

[0007] Furthermore, the vehicle light module is connected to the vehicle computer via a CAN bus for transmitting control instructions or updating animation data.

[0008] Furthermore, the LED driving chip is connected to a vehicle light group, and the vehicle light group includes a plurality of LEDs.

[0009] Furthermore, the first NFC chip communicates data with the processor via a SPI bus.

[0010] Furthermore, the processor communicates data with the LED driver chip via a UART bus.

[0011] Furthermore, the model of the first NFC chip or the second NFC chip is ST25R3920B.

[0012] Furthermore, the vehicle light module includes a power supply module for providing electrical energy.

[0013] The advantages and positive effects of the utility model are:

[0014] By setting up a first NFC chip and an antenna, the antenna communicates data with the processor through the first NFC chip, the mobile device is directly connected to the processor through NFC and transmits the animation data to the processor, and the processor stores the animation data in the data storage module in an overwritten form, so as to simply and quickly update the animation data in the car light.

[0015] The mobile device can be a mobile phone or other vehicle that also has an NFC chip and antenna, which facilitates the transmission of animation data between vehicles and mobile phones, and between vehicles, and improves the social attributes of the vehicle. Since the mobile phone traffic fee is lower than the vehicle computer traffic, the cost of updating the car light animation can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is an overall system diagram of an intelligent vehicle light data exchange system based on NFC technology in the utility model;

[0018] Figure 2 This is a partial system diagram of a headlight module in an intelligent headlight data exchange system based on NFC technology of the utility model. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0021] The utility model provides an intelligent vehicle light data exchange system based on NFC technology, such as Figure 1 to Figure 2As shown, the vehicle computer is installed in the vehicle, and the vehicle computer can be used for navigation, listening to the radio or playing music. The vehicle computer is connected to a touch screen or buttons, and the user controls the operation of the vehicle computer or adjusts the relevant functions of the vehicle through the touch screen or buttons.

[0022] The car computer communicates with the light module through the CAN bus to control the operation of the light module. The output end of the light module is connected to the light group, which is composed of several LEDs. The light module controls the brightness of different LEDs in the light group to present animation effects.

[0023] The headlight module includes a processor, which is connected to the headlight group through an LED driver chip, and the processor communicates with a data storage module for storing animation data, and controls the action of the headlight group according to the animation data recorded in the data storage module to complete the animation display. An embodiment of the present application is that the processor communicates with the LED driver chip through a UART bus, and the UART bus belongs to serial and asynchronous communication.

[0024] The headlight module includes a first NFC chip, the processor communicates data with the first NFC chip through the SPI bus, the first NFC chip communicates data with an external device through an antenna, and the external device includes a second NFC chip and an antenna, so as to realize wireless data interaction. The SPI bus is a high-speed, full-duplex, synchronous communication bus, which can realize the rapid update of animation data.

[0025] When the processor sends data, the first NFC chip converts the received SPI signal into a wireless signal and sends it through the antenna; when the processor receives data, the first NFC chip converts the received wireless signal into an SPI signal and transmits it to the processor for integrity verification. After the verification passes, it is stored in the data storage module in an overwritten form to complete the update of the animation data. An embodiment of the present application is that the model of the first NFC chip or the second NFC chip is ST25R3920B.

[0026] The vehicle light module comprises a power supply module for providing electric energy to the first NFC chip, the processor, the LED driving chip and the data storage module respectively.

[0027] The external device can be a mobile phone. NFC, as a near-field communication technology, has been maturely applied on mobile phones. Currently, almost all smart phones on the market have NFC functions, and mobile phones can be used to exchange animation data with car lights. In addition, the car computer will consume a certain amount of traffic, and the car computer traffic is more expensive than the mobile phone traffic. Upgrading the data through the mobile phone can save the user's traffic fee.

[0028] External devices can be other vehicles, and can interact between vehicles, which improves the social attributes of smart headlights and avoids the disadvantages of the traditional architecture that the CAN network is a wired data exchange and can only be used within the scope of one's own vehicle. In addition, the NFC protocol has inherent security compared to the CAN protocol. Compared with CAN, NFC is less likely to be cracked.

[0029] The working principle and working process of the utility model are as follows:

[0030] First, the external device obtains the animation data, turns on the NFC function and selects the corresponding NFC card information.

[0031] Second, the external device is close to the vehicle's headlight NFC antenna. The external device and the vehicle recognize the corresponding NFC signal and pair up. After the authority authentication is passed, the animation data can be transmitted.

[0032] Third, after the data transmission is completed, the external device prompts the user that the data transmission is completed and disconnects.

[0033] The above embodiments of the utility model are described in detail, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the utility model should still fall within the scope of this patent.

Claims

1. An intelligent vehicle light data exchange system based on NFC technology, characterized in that: The invention comprises a headlight module for controlling the operation of the headlight, wherein the headlight module comprises a processor, wherein the processor is respectively connected to a data storage module, a first NFC chip and an LED driving chip, wherein the first NFC chip is connected to an antenna so that the NFC chip can communicate data with a second NFC chip in an external device through the antenna, and the processor receives data from the external device and stores the data in the data storage module.

2. According to the NFC technology-based smart car light data exchange system of claim 1, it is characterized in that: The vehicle light module is connected to the vehicle computer via the CAN bus for transmitting control instructions or updating animation data.

3. The intelligent vehicle light data exchange system based on NFC technology according to claim 1, characterized in that: The LED driving chip is connected to a vehicle light group, and the vehicle light group includes a plurality of LEDs.

4. The intelligent vehicle light data exchange system based on NFC technology according to claim 1, characterized in that: The first NFC chip communicates data with the processor via the SPI bus.

5. The intelligent vehicle light data exchange system based on NFC technology according to claim 1, characterized in that: The processor communicates data with the LED driver chip via the UART bus.

6. The intelligent vehicle light data exchange system based on NFC technology according to claim 1, characterized in that: The model of the first NFC chip or the second NFC chip is ST25R3920B.

7. The intelligent vehicle light data exchange system based on NFC technology according to claim 1, characterized in that: The vehicle light module includes a power supply module for providing electrical energy.

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