CN212675563U

CN212675563U - Vehicle identity recognition device based on NFC communication

Info

Publication number: CN212675563U
Application number: CN202021737851.1U
Authority: CN
Inventors: 戴仕勇
Original assignee: Suzhou Xuantu Information Technology Co ltd
Current assignee: Suzhou Xuantu Information Technology Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-03-09
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a vehicle identification device based on NFC communication, including the control module of vehicle, the control system still includes NFC card reader and the NFC terminal of user side, the NFC card reader is connected with the NFC terminal for read the electron key ID in the NFC terminal; the control module is used for unlocking and controlling the vehicle according to the electronic key ID acquired through NFC communication. The invention has the advantages that: the vehicle identity information is recognized in an integrated NFC chip mode, so that unlocking control of the vehicle is safer and more reliable, vehicle identity stealing can be avoided due to better confidentiality of NFC, and the NFC can be adopted to realize short-distance and immediate brushing, so that the unlocking mode is simpler and more convenient; meanwhile, some sound and light prompts during unlocking and locking are added, so that the user experience of unlocking verification can be improved.

Description

Vehicle identity recognition device based on NFC communication

Technical Field

The utility model relates to a vehicle unblock control field, in particular to vehicle identification device based on NFC communication.

Background

The authentication mode of vehicle unblock commonly used among the prior art is for giving the signal through wireless remote control key and carrying out unblock control, and this kind of mode belongs to the wireless remote control mode, and this kind of authentication mode has the security privacy relatively poor on the one hand, and stolen signal information of getting easily, and on the other hand is along with the progress of technique, only adopts traditional wireless remote control mode to carry out the unblock and can not satisfy the requirement of vehicle unblock yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's not enough, provide a vehicle identification device based on NFC communication for realize adopting the NFC communication mode to discern the identity and carry out unblock control.

In order to realize the purpose, the utility model discloses a technical scheme be: a vehicle identity recognition device based on NFC communication comprises a control module of a vehicle, and the control system further comprises an NFC card reader and an NFC terminal of a user side, wherein the NFC card reader is connected with the NFC terminal and used for reading an electronic key ID in the NFC terminal; the control module is used for unlocking and controlling the vehicle according to the electronic key ID acquired through NFC communication.

The control module comprises a main control chip MCU and an alarm sound drive circuit, and the main control chip is connected with the alarm through the alarm sound drive circuit.

The control module further comprises a vehicle light driving circuit, and the main control chip MCU is connected with the vehicle light module through the vehicle light driving circuit.

The control module further comprises an RF433 wireless receiving circuit, and the wireless receiving circuit is connected with the wireless remote controller through a wireless communication network and used for obtaining a remote control signal of the wireless remote controller.

The control module further comprises a door lock vibration detection circuit, the door lock vibration detection circuit is used for carrying out vibration detection on the door lock, and the output end of the door lock vibration detection circuit is connected with the main control chip MCU.

The control module further comprises a CAN communication circuit, and the main control chip is respectively connected with a battery management system BMS and a body controller BCM of the vehicle through the CAN communication circuit.

The main control chip is connected with the one-key starting key and used for controlling the starting and the closing of the vehicle according to an electric signal of the one-key starting key.

The control chip is connected with a motor controller of the vehicle.

And the main control chip MCU of the control module is respectively connected with the vehicle locking detection circuit and the vehicle wheel movement detection circuit.

The NFC card reader comprises an NFC control chip and an NFC radio frequency antenna module, the NFC radio frequency antenna module is used for acquiring NFC terminal data, the output end of the NFC radio frequency antenna module is connected with the NFC control chip, the NFC control chip analyzes the ID of the electronic key, and the output end of the NCF control chip is connected with a main control chip MCU of the main control module.

The utility model has the advantages that: the vehicle identity information is recognized in an integrated NFC chip mode, so that unlocking control of the vehicle is safer and more reliable, vehicle identity stealing can be avoided due to better confidentiality of NFC, and the NFC can be adopted to realize short-distance and immediate brushing, so that the unlocking mode is simpler and more convenient; meanwhile, some sound and light prompts during unlocking and locking are added, so that the user experience of unlocking verification can be improved.

Drawings

The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:

FIG. 1 is a schematic diagram of the system architecture of the present invention.

Detailed Description

The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.

The invention mainly aims at improving the vehicle identity authentication and unlocking mode in the prior art, so that the vehicle identity authentication and unlocking mode is simpler and more reliable. The specific scheme comprises the following steps:

as shown in fig. 1, a vehicle identity recognition device based on NFC communication includes a control module of a vehicle, an NFC card reader, and an NFC terminal at a user end, where the NFC card reader is in communication connection with the NFC terminal and is used to read an electronic key ID in the NFC terminal; the control module is used for verifying the vehicle identity according to the electronic key ID acquired through NFC communication and unlocking the lock control after the verification is passed.

NFC terminal mainly includes the NFC chip to built-in electronic key ID in the chip, the NFC terminal can be various wearing equipment, smart machine or vehicle intelligent key, if with the NFC chip integration in the vehicle key, intelligent bracelet, wrist-watch, just so can read the electronic key ID in the NFC terminal after vehicle key, intelligent bracelet, wrist-watch approach the NFC card reader, then send the key ID to control module and carry out the matching of vehicle key ID, thereby carry out authentication and control unblock whether. Or the smart phone is adopted, the NFC chip in the smart phone is used as the NFC terminal after being written into the electronic key ID, and the electronic key ID is sent and the identity is verified after the NFC chip approaches the NFC card reader.

The NFC card reader is mainly used for reading information in an NFC terminal, and specifically comprises an NFC control chip and an NFC radio frequency antenna module, wherein the NFC radio frequency antenna module is used for acquiring NFC terminal data, an output end of the NFC radio frequency antenna module is connected with the NFC control chip, the NFC control chip analyzes an electronic key ID, an output end of the NCF control chip is connected with a main control chip MCU of a main control module, the output end of the NCF control chip is used for sending the analyzed ID to the main control chip MCU in the control module, and the verification of the ID identity is realized and then unlocking is carried out. The NFC radio frequency antenna is mainly used for receiving and sending data, and the NFC control chip is used as a main functional component of NFC and used for analyzing the data to obtain the ID of the electronic key.

The control module is used as a control core of the system and comprises a main control chip MCU, the main control chip MCU is built by adopting control chips such as a single chip microcomputer and a DSP, and by taking the single chip microcomputer as an example, the design and the most basic control function of a peripheral circuit of the main control chip are completed after a 51-series single chip microcomputer is used for building a single chip microcomputer minimum system. The control module further comprises a vehicle locking module used for locking and unlocking the vehicle. The vehicle locking module can comprise a vehicle door locking module, a vehicle power locking module and the like, the vehicle locking module is an original part of a vehicle, and the control IO pin of the main control chip MCU is connected to the vehicle locking module to realize the vehicle locking module. The master control chip is internally preset with an electronic key ID, after the electronic key ID is received through NFC, the received key ID is compared with the preset ID, when the matching is the same, the identity verification is completed, and the identity verification is passed, otherwise, the identity verification is not passed. And after the verification is passed, the vehicle can be unlocked through the vehicle locking module.

In a preferred embodiment, the control module further comprises an alarm sound driving circuit, and the main control chip is connected with the alarm through the alarm sound driving circuit. The alarm is a buzzer and is used for giving out sound alarm. The alarm sound driving circuit can be a triode driving circuit, and the conduction of a power supply loop of the alarm is controlled by the conduction of the triode or not, so that the control of the alarm is realized. Under the conditions that the NFC verification is not passed, the alarm signal can be sent out through the main control chip to give an alarm, so that phenomena of embezzling the NFC and the like are prevented, and alarm reminding is given.

The main control chip MCU is connected with the vehicle light module through the vehicle light driving circuit, and the vehicle light driving circuit is used for controlling the conduction of the vehicle light module, so as to control whether the vehicle light module is lightened. The vehicle light driving circuit can be driven by a triode, and the conduction of the series connection of the triode and the power supply loop is controlled through a base electrode, so that whether the vehicle light is lightened or not is controlled. When the vehicle passes through NFC to carry out authentication, if ID passes through the verification, main control chip MCU control vehicle locking module unblock while control car light scintillation is luminous to give and remind, convenience of customers learn the signal of vehicle unblock.

In a preferred embodiment, the control module further comprises an RF433 wireless receiving circuit, and the wireless receiving circuit is connected to the wireless remote controller through a wireless communication network, and is configured to obtain a remote control signal from the wireless remote controller. This application increases wireless remote controller and carries out the remote control on the basis that increases NFC, and wireless remote controller can be the intelligent key for carry out locking of vehicle through the key, can regard the intelligent key as the NFC terminal, with integrated NFC chip in the intelligent key, just so can satisfy dual key unblock function or lock the function. Generally, NFC can be directly brushed on a vehicle for unlocking, and the wireless remote control function of an intelligent key can be adopted under special conditions. The wireless remote control function can also be used for positioning the vehicle, and after the unlocking and locking switch of the intelligent key is pressed down, the main control chip receives a wireless key signal and gives information prompt by controlling the alarm and the vehicle light, so that the electric vehicle can be conveniently and timely found.

In a preferred embodiment, the control module further comprises a CAN communication circuit/RS 485 circuit, the master control chip is respectively connected with a battery management system BMS and a body controller BCM of the vehicle through the CAN communication circuit or the RS485 circuit, and is used for respectively carrying out data communication and interaction with the BCM and the BMS, the BMS and the BCM CAN also form a part of the vehicle locking module, and when the ID of the electronic key passes the verification, the master control chip sends a driving instruction to the BMS and the BCM to respectively control the battery to start power supply work and control the electrical appliance of the vehicle to start work. Or some parts of the vehicle, such as lamps and the like, are controlled to work directly through the BCM, and the use of peripheral equipment is reduced.

In a preferred embodiment, the main control chip is connected with the one-key start key, and the main control chip is used for controlling the start and the stop of the vehicle according to an electric signal of the one-key start key. After the vehicle main control chip MCU verifies the electronic key ID, the vehicle is unlocked; the starting control of the vehicle can be realized through the one-key starting key, and after the one-key starting key is pressed down, the main control chip respectively sends a starting signal to vehicle-mounted functional components such as a BMS (battery management system), a BCM (binary coded modulation) and the like, so that the vehicle runs and the one-key starting of the vehicle is completed.

In another preferred embodiment, the control module further comprises a door lock vibration detection circuit and an electric door lock, wherein the door lock vibration detection circuit is used for performing vibration detection on the door lock, and the output end of the door lock vibration detection circuit is connected with the main control chip MCU. The output end of the main control chip MCU is connected with the electronic door lock and used for controlling whether the door lock is unlocked or not. The electronic ID verification is passed, then the door lock is controlled to unlock, and the door lock vibration detection circuit is mainly used for detecting abnormal disturbance door lock under the condition of locking, and can be a vibration sensor or other sensors capable of detecting door lock state, and is mainly used for preventing external force from unlocking door lock under the condition of locking. When the vehicle is locked, the main control chip detects a vibration signal of the vehicle door lock and sends an alarm signal by connecting the alarm with the main control chip.

When the vehicle is an electric vehicle, the power system comprises a motor and a drive thereof, the controller of the power system is a motor controller, in order to realize power control and power unlocking, the control chip is connected with the motor controller of the vehicle, and after the electronic ID verification is passed, the MCU sends a signal to the motor controller to control the starting work of the motor. And further rotates according to the control signal of the controller of the whole vehicle to provide power.

The main control chip MCU is respectively connected with the vehicle locking detection circuit and the vehicle wheel movement detection circuit. The vehicle locking detection circuit is mainly used for detecting a locking signal of a vehicle, and the vehicle wheel movement detection circuit is mainly used for detecting a wheel movement signal of the vehicle, and the two signals are stored in the BCM, so that the two detection circuits CAN be an RS485 communication circuit or a CAN communication circuit. The method and the device mainly aim to enable the MCU to obtain the state data of the vehicle in time, provide data support for locking and unlocking, alarming and the like of the vehicle, and facilitate unlocking control after ID verification and alarming under the condition that the ID is not verified and in a locking state. The power supply of the motor controller is controlled by the BMS, so that the BMS can conveniently control the power supply of the motor power supply.

It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.

Claims

1. The utility model provides a vehicle identification device based on NFC communication, includes the control module of vehicle, its characterized in that: the identification device further comprises an NFC card reader and an NFC terminal of a user side, wherein the NFC card reader is connected with the NFC terminal and used for reading an electronic key ID in the NFC terminal; the control module is used for unlocking and controlling the vehicle according to the electronic key ID acquired by NFC communication;

2. The NFC communication-based vehicle identification device according to claim 1, wherein: the control module comprises a main control chip MCU and an alarm sound drive circuit, and the main control chip is connected with the alarm through the alarm sound drive circuit.

3. An NFC communication-based vehicle identification device according to claim 2, wherein: the control module further comprises a vehicle light driving circuit, and the main control chip MCU is connected with the vehicle light module through the vehicle light driving circuit.

4. A vehicle identification device based on NFC communication according to claim 1 or 2, wherein: the control module further comprises a door lock vibration detection circuit, the door lock vibration detection circuit is used for carrying out vibration detection on the door lock, and the output end of the door lock vibration detection circuit is connected with the main control chip MCU.

5. An NFC communication-based vehicle identification device according to claim 2, wherein: the control module further comprises a CAN communication circuit, and the main control chip MCU is respectively connected with a battery management system BMS and a body controller BCM of the vehicle through the CAN communication circuit.

6. An NFC-communication-based vehicle identification device according to claim 5 wherein: the main control chip MCU is connected with the one-key starting key and used for controlling the starting and the closing of the vehicle according to the electric signal of the one-key starting key.

7. An NFC communication-based vehicle identification device according to claim 2, wherein: and the main control chip MCU is connected with a motor controller of the vehicle.

8. A vehicle identification device based on NFC communication according to claim 1 or 2, wherein: and the main control chip MCU of the control module is respectively connected with the vehicle locking detection circuit and the vehicle wheel movement detection circuit.

9. A vehicle identification device based on NFC communication according to claim 1 or 2, wherein: the NFC card reader comprises an NFC control chip and an NFC radio frequency antenna module, the NFC radio frequency antenna module is used for acquiring NFC terminal data, the output end of the NFC radio frequency antenna module is connected with the NFC control chip, the NFC control chip analyzes the ID of the electronic key, and the output end of the NFC control chip is connected with a main control chip MCU of a main control module.