Operation authority control method and system based on vehicle door handle fingerprint identification and vehicle

Abstract

The invention discloses an operation authority control method and system based on vehicle door handle fingerprint recognition and a vehicle, and belongs to the technical field of vehicle intelligent control. The method comprises the following steps that when a user uses a vehicle door handle to unlock the vehicle, a vehicle body control unit is activated; the fingerprint of a user is recognized through a vehicle door handle, and fingerprint information is transmitted to the vehicle body control unit; identifying user information corresponding to the fingerprint information through the vehicle body control unit; the vehicle central control unit determines a corresponding authorization level according to the identified corresponding user information; and according to different authorization levels, the vehicle central control unit sends a control command to the corresponding controlled unit. According to the method, the user permission can be determined when the user unlocks the vehicle, and convenience is brought to various vehicle using scenes.

Description

Technical Field

[0001] The present invention relates to the field of vehicle intelligent control technology, and more specifically, to an operation authority control method, system and vehicle based on door handle fingerprint recognition. Background Art

[0002] In today's automotive industry, the mainstream situation is that there is a specific way to distinguish vehicle driving permissions. This distinction is mainly based on the actual usage scenario, which can be divided into the following types:

[0003] The first is the door unlock permission. When the vehicle is in this permission state, only the door can be unlocked, and the power system inside the vehicle is not activated, that is, the vehicle cannot be powered on. This permission setting is more common in many daily scenarios. For example, when the owner just needs to enter the vehicle to take items, but not to drive the vehicle, the door unlock permission is sufficient to meet the needs. It can ensure the basic convenience of the vehicle while avoiding unnecessary power consumption and potential safety risks, and prevent the vehicle from accidentally starting or power failure under unexpected circumstances.

[0004] The second is static operation authority. Under this authority, the occupants can operate the central control screen, whether it is setting the navigation route, viewing vehicle information, or adjusting various vehicle function parameters. At the same time, the audio and video entertainment system can also be used normally, and the high-voltage air conditioner can also be turned on. However, it should be made clear that under static operation authority, the vehicle does not have the authority to drive. Its main function is to provide the occupants with a comfortable and convenient operating experience in a static environment, rather than for mobile driving of the vehicle.

[0005] The third is low-speed dynamic operation authority. This authority allows the vehicle to only drive at low speed and low power. For example, in a vehicle repair shop or in a specific vehicle debugging scenario, maintenance personnel may need to move the vehicle slowly for a short distance in order to better inspect, repair or debug the vehicle.

[0006] Finally, there is full-function permission. When the vehicle is in full-function permission state, it means that it has all the usage permissions. It can operate the central control screen, audio and video entertainment, high-voltage air conditioning, etc. as in static operation permissions, and can also freely control the vehicle to perform various driving operations as in normal driving scenarios. Whether it is normal driving on urban roads, long-distance travel on highways, or flexible response under special road conditions, it can be smoothly achieved. Full-function permission is the most comprehensive permission state of the vehicle during normal use, covering all functional requirements from static comfort experience to dynamic driving control.

[0007] Unfortunately, in the current industry environment, there is no practical and widely used process for how to accurately define these different types of vehicle access rights and how to reasonably distribute them. This situation has, to a certain extent, affected the standardization and efficiency of vehicle access rights management. Summary of the invention

[0008] An object of the present invention is to provide an operation authority control method, system and vehicle based on door handle fingerprint recognition to solve the problem that different types of vehicle usage permissions cannot be accurately defined and permissions cannot be reasonably distributed in the current industry environment.

[0009] According to a first aspect of the present invention, there is provided an operation authority control method based on door handle fingerprint recognition, comprising the following steps:

[0010] When the user unlocks the vehicle using the door handle, the body control unit (BCM) is activated;

[0011] Recognize the user's fingerprint through the door handle and transmit the fingerprint information to the body control unit;

[0012] Identifying user information corresponding to the fingerprint information by the vehicle body control unit;

[0013] activating a vehicle central control unit, wherein the vehicle central control unit determines a corresponding authorization level according to the identified corresponding user information;

[0014] According to different authorization levels, the vehicle central control unit sends control commands to the corresponding controlled units.

[0015] Optionally, the controlled unit includes an energy storage module, a drive module, a high-voltage air conditioner, and an entertainment audio and video module.

[0016] Optionally, a user fingerprint database is stored in the vehicle body control unit, and the corresponding user is identified by comparing the fingerprint information in the user fingerprint database.

[0017] Optionally, before the step of confirming that the user uses the door handle to unlock the vehicle, it also includes: entering the vehicle's authority setting system, pre-associating different fingerprint information with corresponding authority levels, and the preset association information is stored in a specific storage area of ​​the vehicle central control unit.

[0018] Optionally, the vehicle central control unit determines the authorization level corresponding to the user who uses the door handle to unlock the vehicle according to preset association information, and different authorization levels correspond to different combinations of controlled unit operation permissions.

[0019] Optionally, the vehicle central control unit determines the authorization level corresponding to the user who uses the door handle to unlock the vehicle according to the preset association information, including:

[0020] The vehicle owner is set as the highest authority level "Administrator", who has full control over all vehicle functions, including setting vehicle system parameters and modifying other users' permissions;

[0021] Ordinary family members are set to the "ordinary user" permission level, which allows them to perform regular driving operations, use in-car entertainment facilities and basic vehicle settings;

[0022] Maintenance personnel are set to the "maintenance mode" authority level and are only allowed to perform specific operations related to vehicle maintenance and inspection.

[0023] Optionally, if the body control unit fails to recognize the user's fingerprint or recognizes it incorrectly after the user unlocks the vehicle using the door handle, the vehicle remains locked and an alarm device is triggered.

[0024] According to a second aspect of the present invention, there is provided an operation authority control system based on door handle fingerprint recognition, adopting the above-mentioned operation authority control method based on door handle fingerprint recognition, the system includes a body controller and a vehicle central control unit; when a user uses a door handle to unlock the vehicle, the door handle recognizes the user's fingerprint and transmits the user's fingerprint information to the body controller, and the body controller identifies the corresponding user; the vehicle central control unit determines the corresponding authorization level according to the corresponding user, and sends control commands to the corresponding controlled units according to different authorization levels, and the controlled units include an energy storage module, a drive module, a high-voltage air conditioner, and an entertainment audio and video module.

[0025] Optionally, a fingerprint recognition module is integrated on the door handle, and the fingerprint recognition module adopts a capacitive sensor or an optical sensor.

[0026] According to a third aspect of the present invention, a vehicle is provided, comprising the above-mentioned operation authority control system based on door handle fingerprint recognition.

[0027] The method, system and vehicle for controlling operation authority based on door handle fingerprint recognition disclosed in the present invention have the following technical effects:

[0028] The present invention can determine the user's usage authority when the user unlocks the vehicle, which is convenient for various vehicle usage scenarios, such as: door unlocking (not powering on), static operation (including central control screen operation, audio and video entertainment, high-voltage air conditioning, etc.), low-speed dynamic operation (can be driven at low speed, used for maintenance), administrator operation (all functions), etc.

[0029] Through the fingerprint recognition of the door handle and a series of subsequent authority determination and allocation mechanisms, highly accurate and personalized authority management for different users is achieved. Each user corresponds to a specific authorization level based on their preset fingerprint information, which enables the vehicle to accurately open or restrict corresponding functions according to the identity of the user. Low-authority users cannot arbitrarily operate the drive module for high-speed driving or perform dangerous charging and discharging operations on the energy storage module, reducing the possibility of safety accidents such as vehicle loss of control, battery failure, and even fire and explosion caused by misoperation.

[0030] Users no longer need to carry traditional car keys, and can unlock and enter the vehicle simply by fingerprint recognition on the door handle, simplifying the boarding process. Different users can use different functional combinations of the vehicle according to their own authority levels, meeting the diverse needs of users.

[0031] Since the authority system is closely connected with each controlled unit, when a vehicle fails, the source of the fault can be quickly checked based on the information records of authority management. For example, if an abnormality occurs during operation by a low-authority user, the authority information recorded by the vehicle central control unit and the corresponding controlled unit operation records can help maintenance personnel quickly determine whether it is an erroneous operation caused by user authority restrictions or a hardware or software failure of the controlled unit itself, thereby improving the efficiency of troubleshooting.

[0032] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0034] Figure 1 A schematic flow chart of an operation authority control method based on door handle fingerprint recognition provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0035] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0036] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0037] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] The present invention proposes an embodiment of an operation authority control method based on door handle fingerprint recognition. Specifically, Figure 1 As shown, the following steps are included:

[0040] When the user unlocks the vehicle using the door handle, the body control unit is activated;

[0041] Specifically, when the user's hand touches the door handle, the sensing device inside the door handle is immediately triggered. The sensing device can be configured as a capacitive touch sensor. Once the touch is detected, the door handle sends a wake-up signal to the body control unit. After receiving the wake-up signal, the body control unit quickly switches from a low-power standby state to a fully activated state. During the activation process, the body control unit performs self-test operations, including checking whether its own circuit connection is normal, whether the internally stored data is complete, and whether the communication link with other related modules is unobstructed.

[0042] Recognize the user's fingerprint through the door handle and transmit the fingerprint information to the body control unit;

[0043] Specifically, when the body control unit is activated, the fingerprint recognition module of the door handle starts working. When the user places the finger on the fingerprint recognition area of ​​the door handle, the light source inside the fingerprint recognition module illuminates the surface of the finger, and the high-definition camera captures the image of the finger fingerprint. The fingerprint recognition algorithm extracts the feature points in the fingerprint image and converts these feature point information into fingerprint data in the form of digital code, and transmits the fingerprint information to the body control unit through the CAN bus communication network in the car.

[0044] The vehicle body control unit identifies the user information corresponding to the fingerprint information; specifically, the vehicle body control unit stores a user fingerprint database, and identifies the corresponding user by comparing the fingerprint information in the user fingerprint database. If the similarity between the received fingerprint and the fingerprint template of a user in the database in terms of the position, type and relative relationship of the feature points exceeds a preset threshold (such as 90%), the fingerprint is considered to be matched successfully, and the detailed information corresponding to the user is extracted.

[0045] Activate the vehicle central control unit, and the vehicle central control unit determines the corresponding authorization level according to the corresponding user information that has been identified; specifically, when the body control unit successfully identifies the user information, it sends an activation signal and the identified user information to the vehicle central control unit. The vehicle central control unit is activated after receiving the signal, and determines the corresponding authorization level according to the received user information.

[0046] According to different authorization levels, the vehicle central control unit sends control commands to the corresponding controlled units; the controlled units include energy storage modules, drive modules, high-voltage air conditioners, and entertainment audio and video modules.

[0047] In an embodiment of the present invention, before confirming that the user uses the door handle to unlock the vehicle, the method further includes: entering the vehicle's authority setting system, pre-associating different fingerprint information with corresponding authority levels, and storing the pre-associated information in a specific storage area of ​​the vehicle central control unit. The specific storage area uses an AES (Advanced Encryption Standard) algorithm to encrypt the stored fingerprint and authority association information.

[0048] In an embodiment of the present invention, the vehicle central control unit determines the authorization level corresponding to the user who uses the door handle to unlock the vehicle according to the preset association information. Different authorization levels correspond to different combinations of controlled unit operation permissions, including:

[0049] The vehicle owner is set as the highest authority level "Administrator", who has full control over all vehicle functions, including setting vehicle system parameters and modifying other users' permissions;

[0050] Ordinary family members are set to the "ordinary user" permission level, which allows them to perform regular driving operations, use in-car entertainment facilities and basic vehicle settings;

[0051] Maintenance personnel are set to the "maintenance mode" authority level and are only allowed to perform specific operations related to vehicle maintenance and inspection, such as starting the vehicle and moving it at a low speed to check the chassis or engine performance, but restrictions are placed on modifications to the entertainment system and vehicle driving performance parameters.

[0052] According to the different authorization levels determined, the vehicle central control unit begins to send precise control commands to the corresponding controlled units:

[0053] Energy storage module: For users with high authorization levels (such as administrators), the vehicle central control unit allows them to freely view and manage detailed information of the energy storage module, such as battery power, charging status, battery health, etc., and can manually adjust the charging power and discharge limit as needed. For users with low authorization levels (such as ordinary users), they can only see a simple remaining power prompt and cannot manually intervene in the charging and discharging parameters of the energy storage module to prevent battery performance degradation or safety problems due to misoperation.

[0054] Driving module: Users with high authorization levels (such as administrators) can unlock all driving modes of the vehicle, including high-performance sports mode, energy-saving mode, and special road condition modes (such as snow mode, off-road mode, etc.). Users with low authorization levels (such as ordinary users) can only use the default ordinary driving mode, and the maximum speed of the vehicle will be limited to a lower range (such as 80 kilometers per hour), and the acceleration performance will also be weakened to ensure driving safety and reasonable use of the vehicle.

[0055] High-pressure air conditioner: Users with high authorization levels (such as administrators) can make all-round settings for high-pressure air conditioners, such as accurately setting the temperature, adjusting various air outlet modes (such as face, foot, defrost and other combination modes), setting the air speed curve of the air conditioner, and enabling the air purification function. Users with low authorization levels (such as ordinary users) can only make simple temperature adjustments and basic air outlet mode selections (such as only face or foot air outlets) to avoid excessive energy consumption or unnecessary wear and tear on the air conditioning system due to excessive use of the air conditioning function.

[0056] Entertainment audio and video module: Users with high authorization levels (such as administrators) can enjoy all the functions of the entertainment audio and video module, such as switching various audio sources at will (including online music platforms, local music libraries, external music devices connected via Bluetooth, etc.), adjusting complex sound effect settings (such as surround sound, bass enhancement, high-definition clarity and other sound effect modes), playing high-definition videos, and interconnecting multimedia devices (such as mirroring the mobile phone screen to the vehicle's central control screen for operation). Users with low authorization levels (such as ordinary users) can only listen to a few preset radio stations or play some specified music files in the local music library. The sound effect settings are also relatively simple (only basic volume adjustment and several preset sound effect modes), and video playback and multimedia interconnection operations are not possible, so as to ensure that the driver will not be distracted by too many entertainment functions during driving.

[0057] Other related modules: For example, in the vehicle's seat adjustment module, users with high authorization levels (such as administrators) can save and call multiple personalized seat position memories, including the seat's front and rear position, height adjustment, backrest tilt angle, and waist support strength, etc. All-round adjustment functions; users with low authorization levels (such as ordinary users) can only perform simple seat forward and backward movement and backrest angle adjustment. Another example is the vehicle's window control module. Users with high authorization levels (such as administrators) can achieve advanced functions such as one-button lifting and lowering of all windows and remote control of window opening and closing; users with low authorization levels (such as ordinary users) can only perform basic lifting and lowering operations on each window.

[0058] In an embodiment of the present invention, if the body control unit fails to recognize the user's fingerprint or recognizes it incorrectly after the user unlocks the vehicle using the door handle, the vehicle remains locked and the alarm device is triggered. In order to ensure the safety of the vehicle, the vehicle will continue to remain locked. This locked state is to further strengthen the safety protection mechanism of the vehicle. The body control unit will send instructions to each door lock actuator of the vehicle to ensure that all doors, trunk doors, hood locks, etc. are in a firmly locked state to prevent any unauthorized forced opening attempts.

[0059] The present invention also provides an embodiment of an operation authority control system based on door handle fingerprint recognition. The system adopts the above-mentioned operation authority control method based on door handle fingerprint recognition, and includes a body controller and a vehicle central control unit; when the user uses the door handle to unlock the vehicle, the door handle recognizes the user's fingerprint and transmits the user's fingerprint information to the body controller, and the body controller identifies the corresponding user; the vehicle central control unit determines the corresponding authorization level according to the corresponding user, and sends control commands to the corresponding controlled units according to different authorization levels, and the controlled units include energy storage modules, drive modules, high-voltage air conditioners, and entertainment audio and video modules.

[0060] In an embodiment of the present invention, a fingerprint recognition module is integrated on the door handle, and the fingerprint recognition module adopts a capacitive sensor or an optical sensor. The capacitive sensor constructs a fingerprint image by detecting a small change in the capacitance value between the finger and the sensor surface; the optical sensor uses the reflection principle of light to convert the texture information of the fingerprint into an optical image that can be identified.

[0061] It should be noted that the information interaction, execution process and other contents between the above-mentioned components are based on the same concept as the method embodiment of the present application, and are devices corresponding to the above-mentioned operation authority control method based on door handle fingerprint recognition. All implementation methods in the above-mentioned method embodiment are applicable to the embodiments of the device. Its specific functions and technical effects can be found in the method embodiment part, which will not be repeated here.

[0062] The present invention also provides an embodiment of a vehicle, including the above-mentioned operation authority control system based on door handle fingerprint recognition. The coordinated work of the body control unit and the vehicle central control unit ensures that the vehicle will open the corresponding functions according to the user's authorization level only after the fingerprint is accurately identified and matched to the corresponding user. This double verification mechanism (fingerprint recognition and user authority matching) enhances the security of the vehicle and prevents illegal users from gaining control of the vehicle. Different authorization levels are preset according to different users, and the vehicle can provide a personalized functional experience for each user. Users can unlock the vehicle and automatically obtain the corresponding authority through fingerprint recognition of the door handle, without the need for additional operations to start different functional modules, providing a convenient and comfortable use experience.

[0063] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification and drawings, should be within the protection scope of the present invention.

Claims

1. An operation authority control method based on door handle fingerprint recognition, characterized in that: The following steps are involved: When the user unlocks the vehicle using the door handle, the body control unit is activated; Recognize the user's fingerprint through the door handle and transmit the fingerprint information to the body control unit; Identifying user information corresponding to the fingerprint information by the vehicle body control unit; activating a vehicle central control unit, wherein the vehicle central control unit determines a corresponding authorization level according to the identified corresponding user information; According to different authorization levels, the vehicle central control unit sends control commands to the corresponding controlled units.

2. The operation authority control method based on door handle fingerprint recognition according to claim 1 is characterized in that: The controlled units include an energy storage module, a drive module, a high-voltage air conditioner, and an entertainment audio and video module.

3. The operation authority control method based on door handle fingerprint recognition according to claim 1 is characterized in that: The vehicle body control unit stores a user fingerprint database, and the corresponding user is identified by comparing the fingerprint information in the user fingerprint database.

4. The operation authority control method based on door handle fingerprint recognition according to claim 1 is characterized in that: Before confirming that the user uses the door handle to unlock the vehicle, the method also includes: entering the vehicle's authority setting system, pre-associating different fingerprint information with corresponding authority levels, and storing the preset association information in the setting storage area of ​​the vehicle central control unit.

5. The operation authority control method based on door handle fingerprint recognition according to claim 4 is characterized in that: The vehicle central control unit determines the authorization level corresponding to the user who uses the door handle to unlock the vehicle according to the preset association information, and different authorization levels correspond to different combinations of controlled unit operation permissions.

6. The operation authority control method based on door handle fingerprint recognition according to claim 5 is characterized in that: The vehicle central control unit determines the authorization level corresponding to the user who uses the door handle to unlock the vehicle according to the preset association information, including: The vehicle owner is set as the highest authority level "Administrator", who has full control over all vehicle functions, including setting vehicle system parameters and modifying other users' permissions; Ordinary family members are set to the "ordinary user" permission level, which allows them to perform regular driving operations, use in-car entertainment facilities and basic vehicle settings; Maintenance personnel are set to the "maintenance mode" authority level and are only allowed to perform setting operations related to vehicle maintenance and inspection.

7. The operation authority control method based on door handle fingerprint recognition according to claim 1 is characterized in that: If the body control unit fails to recognize the user's fingerprint or recognizes it incorrectly after the user uses the door handle to unlock the vehicle, the vehicle remains locked and the alarm device is triggered.

8. An operation authority control system based on door handle fingerprint recognition, adopting the operation authority control method based on door handle fingerprint recognition according to any one of claims 1 to 7, characterized in that: It includes a body controller and a vehicle central control unit; when the user uses the door handle to unlock the vehicle, the door handle recognizes the user's fingerprint and transmits the user's fingerprint information to the body controller, and the body controller recognizes the corresponding user; the vehicle central control unit determines the corresponding authorization level according to the corresponding user, and sends control commands to the corresponding controlled units according to different authorization levels. The controlled units include energy storage modules, drive modules, high-voltage air conditioners, and entertainment audio and video modules.

9. The operation authority control system based on door handle fingerprint recognition according to claim 8 is characterized in that: The door handle is integrated with a fingerprint recognition module, which uses a capacitive sensor or an optical sensor.

10. A vehicle, characterized in that: It includes the operation authority control system based on door handle fingerprint recognition as described in claim 8 or 9.

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