Vehicle open / close lock control system, control method, and related device

Abstract

The application discloses a vehicle opening and closing lock control system, a control method and related equipment, and relates to the technical field of vehicle control systems. The system comprises a vehicle body controller arranged on a vehicle body; a radar anchor point group arranged on the vehicle body and used for communicating with an unlocking device to verify the authorization state of the unlocking device; a radar detection device arranged inside an opening and closing component of the vehicle, in communication connection with the vehicle body controller, used for emitting radar pulse signals and receiving reflected echo signals within a preset working range, to identify a triggering action of a target object outside the opening and closing component, and generate and send an unlocking triggering signal to the vehicle body controller when an effective triggering action is identified; and the vehicle body controller is used for receiving the unlocking triggering signal, verifying the authorization state of the unlocking device based on the radar anchor point group in response to the unlocking triggering signal, and controlling the opening and closing component to perform an unlocking action after verification.

Description

Technical Field

[0001] This application belongs to the field of vehicle control technology, specifically relating to a vehicle locking and unlocking control system, a vehicle locking and unlocking control method, and related equipment. Background Technology

[0002] Keyless entry systems are now standard on vehicles, primarily implemented through two methods: contactless sensor-based unlocking and door handle-based capacitive sensor-based unlocking. While the contactless sensor solution automatically unlocks the door when the key approaches, its positioning accuracy is insufficient in practice, resulting in unstable unlocking distances. This often leads to issues such as the door not locking when the key is far from the vehicle and slow unlocking response when the key is close, and also poses certain security risks.

[0003] Traditional capacitive sensing solutions require exposed sensor contacts on the door handle surface. This design increases the difficulty of door handle design and manufacturing, and the exposed contacts are susceptible to environmental factors such as rain, temperature and humidity changes, leading to false triggering or sensor failure. Furthermore, the exposed contact structure limits the waterproof and dustproof rating of the door handle. Therefore, a vehicle unlocking and locking control system is urgently needed to solve these problems. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a vehicle unlocking and locking control system that can solve the problems of insufficient locking accuracy, unstable triggering distance, easy failure when locking at a distance, slow unlocking response and security risks of contactless unlocking and locking, as well as the problems of capacitive induction unlocking and locking which require exposed contacts, have complex manufacturing processes, are susceptible to environmental interference leading to false triggering or induction failure, and have limited waterproof and dustproof protection levels.

[0005] To achieve the above objectives, a first aspect of the present invention provides a vehicle unlocking and closing control system, comprising: a vehicle body controller disposed on the vehicle body; a radar anchor point group disposed on the vehicle body for communicating with an unlocking device to verify the authorization status of the unlocking device; a radar detection device disposed inside the vehicle's unlocking components and communicatively connected to the vehicle body controller for emitting radar pulse signals and receiving reflected echo signals within a preset working range to identify triggering actions of target objects outside the unlocking components, and generating and sending an unlocking trigger signal to the vehicle body controller when a valid triggering action is identified; the vehicle body controller receives the unlocking trigger signal and, in response to the unlocking trigger signal, verifies the authorization status of the unlocking device based on the radar anchor point group, and controls the unlocking components to perform an unlocking action after successful verification.

[0006] In some embodiments, the triggering action includes the approaching action and / or grasping action of the target object.

[0007] In some embodiments, the radar detection device is integrated inside the housing of the opening and closing component. The radar pulse signal emitted by the antenna of the radar detection device is radiated outward through the housing of the opening and closing component, and the reflected echo signal is received by the antenna through the housing of the opening and closing component.

[0008] In some embodiments, the radar detection device includes a radar chip, a radar antenna, a radar controller, and a communication interface; the radar chip transmits radar pulse signals through the radar antenna and receives reflected echo signals reflected by the target object; the radar controller processes the received reflected echo signals to identify trigger actions and communicates with the vehicle body controller through the communication interface.

[0009] In some embodiments, the radar detection device shares a radar chip and communication interface with the vehicle's digital unlocking system. The radar detection device has a radar detection working mode and a ranging communication working mode, and is configured to switch between the radar detection working mode and the ranging communication working mode.

[0010] In some embodiments, the opening and closing component is a door handle of the vehicle, and the radar detection device is located inside the left front door handle and / or the right front door handle of the vehicle.

[0011] According to an embodiment of the present invention, a vehicle unlocking and locking control system includes: a vehicle body controller disposed on the vehicle body; a radar anchor point group disposed on the vehicle body for communicating with an unlocking device to verify the authorization status of the unlocking device; a radar detection device disposed inside the vehicle's unlocking component and communicatively connected to the vehicle body controller for emitting radar pulse signals and receiving reflected echo signals within a preset working range to identify triggering actions of target objects outside the unlocking component, and generating and sending an unlocking trigger signal to the vehicle body controller when a valid triggering action is identified; the vehicle body controller receives the unlocking trigger signal and, in response to the unlocking trigger signal, verifies the authorization status of the unlocking device based on the radar anchor point group, and controls the unlocking component to perform an unlocking action after successful verification. Therefore, this application can solve the problems of insufficient locking accuracy, unstable trigger distance, easy failure when the door is far from the lock, slow unlocking response and security risks of contactless unlocking and locking, as well as the problems of capacitive induction unlocking and locking which require exposed contacts, have complex manufacturing process, are susceptible to environmental interference leading to false triggering or induction failure, and have limited waterproof and dustproof protection level. The radar module is built into the door handle shell and is not affected by external environmental factors such as rain, temperature and humidity. It can accurately distinguish between the user's actual grip operation and unintentional behavior such as passing by or unintentional touch, so as to achieve stable and reliable contactless door handle unlocking and locking detection, thereby improving the overall user experience and protection performance of the vehicle keyless entry system.

[0012] To achieve the above objectives, a second aspect of the present invention provides a vehicle unlocking and closing control method, applied to the aforementioned vehicle unlocking and closing control system. The method includes: transmitting a radar pulse signal and receiving a reflected echo signal through a radar detection device built into the vehicle unlocking and closing component to detect the triggering action of a target object outside the unlocking and closing component; determining whether the triggering action of the target object conforms to a preset unlocking intention based on the reflected echo signal; if the triggering action of the target object conforms to the preset unlocking intention, generating and sending an unlocking trigger signal to the vehicle controller; if it does not conform, not generating an unlocking trigger signal; and responding to the unlocking trigger signal, the vehicle controller verifies the authorization status of the unlocking device through a radar anchor point group and controls the unlocking and closing component to perform an unlocking action according to the verification result.

[0013] In some embodiments, determining whether the triggering action of the target object conforms to a preset unlocking intention based on the reflected echo signal includes: when the radar detection device is in an idle state where no target object is detected, acquiring a first echo signal and storing it as an environmental background feature; in response to the radar detection device detecting the target object, acquiring a second echo signal; filtering the environmental background features in the second echo signal to obtain target echo features; and comparing the target echo features with the features of the preset unlocking intention to determine whether the triggering action of the target object conforms to the preset unlocking intention.

[0014] In some embodiments, the method further includes: calculating the real-time distance between the target object and the vehicle opening / closing component using reflected echo signals; in response to the real-time distance being less than or equal to a preset proximity threshold, initiating continuous monitoring of the target object's actions; determining, based on the results of continuous monitoring, whether the dwell time and / or distance change of the target object outside the opening / closing component meet preset triggering conditions; and in response to the dwell time and / or distance change of the target object outside the opening / closing component meeting preset triggering conditions, determining that the target object's triggering action conforms to a preset unlocking intent.

[0015] In some embodiments, the triggering conditions include a duration exceeding a first time threshold for which the real-time distance is continuously less than or equal to the proximity threshold, and a change in the real-time distance within a second time threshold that is less than a preset fluctuation range.

[0016] In some embodiments, in response to an unlock trigger signal, the vehicle controller verifies the authorization status of the unlocking device through a radar anchor group, and controls the opening and closing components to perform an unlocking action based on the verification result. This includes: after receiving the unlock trigger signal, the vehicle controller activates the radar anchor group on the vehicle to communicate and measure distances with the unlocking device to obtain real-time location information of the unlocking device; determines whether the unlocking device is located within a preset authorized area based on the real-time location information; and confirms that the authorization status of the unlocking device is valid in response to the unlocking device being located within the preset authorized area.

[0017] In some embodiments, after generating and sending an unlock trigger signal to the vehicle controller, the method further includes: switching the operating mode of the radar detection device from radar detection mode to ranging communication mode, so that the radar detection device cooperates with the radar anchor point group to perform communication ranging on the unlocking device; and switching the radar detection device back to radar detection mode in response to obtaining the real-time location information of the unlocking device.

[0018] According to an embodiment of the present invention, a vehicle unlocking and locking control method is applied to a vehicle unlocking and locking control system as described above. The method includes: transmitting a radar pulse signal and receiving a reflected echo signal through a radar detection device built into the vehicle unlocking and locking component to detect the triggering action of a target object outside the unlocking and locking component; determining whether the triggering action of the target object conforms to a preset unlocking intention based on the reflected echo signal; if the triggering action of the target object conforms to the preset unlocking intention, generating and sending an unlocking trigger signal to the vehicle controller; if it does not conform, not generating an unlocking trigger signal; and the vehicle controller responds to the unlocking trigger signal by verifying the authorization status of the unlocking device through a radar anchor point group, and controlling the unlocking and locking component to perform an unlocking action according to the verification result. Therefore, this application can solve the problems of insufficient locking accuracy, unstable trigger distance, easy failure when the door is far from the lock, slow unlocking response and security risks of contactless unlocking and locking, as well as the problems of capacitive induction unlocking and locking which require exposed contacts, have complex manufacturing process, are susceptible to environmental interference leading to false triggering or induction failure, and have limited waterproof and dustproof protection level. The radar module is built into the door handle shell and is not affected by external environmental factors such as rain, temperature and humidity. It can accurately distinguish between the user's actual grip operation and unintentional behavior such as passing by or unintentional touch, so as to achieve stable and reliable contactless door handle unlocking and locking detection, thereby improving the overall user experience and protection performance of the vehicle keyless entry system.

[0019] To achieve the above objectives, a third aspect of the present invention provides an electronic device, comprising: a processor and a memory, wherein the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement the steps of the vehicle unlocking and locking control method as described in any of the foregoing.

[0020] To achieve the above objectives, a fourth aspect of the present invention provides a computer-readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the vehicle unlocking and locking control method as described in any of the preceding claims.

[0021] To achieve the above objectives, a fifth aspect of the present invention provides a vehicle including a vehicle unlocking and locking control system as described in any of the preceding claims, the vehicle unlocking and locking control system being used to execute the steps of the vehicle unlocking and locking control method as described in any of the preceding claims.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 A schematic diagram of the appearance of a traditional capacitive door handle; Figure 2 A schematic diagram of the internal structure of a traditional capacitive door handle; Figure 3 This is a schematic diagram of the appearance of a door handle in a vehicle unlocking and locking control system according to an embodiment of this application; Figure 4 This is a schematic diagram of the internal structure of a door handle in a vehicle unlocking and locking control system according to an embodiment of this application; Figure 5 This is a schematic diagram of the overall architecture of a vehicle unlocking and locking control system according to an embodiment of this application; Figure 6 This is a schematic diagram of a radar detection device for a vehicle unlocking and locking control system according to an embodiment of this application; Figure 7 This is a flowchart illustrating a vehicle unlocking and locking control method according to an embodiment of this application; Figure 8 This is a schematic diagram illustrating an application scenario of an embodiment of this application; Figure 9 This is a schematic diagram of the three stages of grip action recognition in an embodiment of this application; Figure 10 This is a flowchart illustrating the radar detection and unlocking process of a vehicle unlocking and locking control method according to an embodiment of this application. Figure 11 This is a comparison diagram between the embodiments of this application and the traditional capacitive sensing scheme; Figure 12 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0024] Reference numerals: 1. Body controller; 2. Radar anchor point group; 3. Unlocking device; 4. Radar detection device; 41. Radar chip; 42. Radar antenna; 43. Radar controller; 44. Communication interface; 1210. Processor; 1220. Memory; 1230. Input / output interface; 1240. Communication interface; 1250. Bus. Detailed Implementation

[0025] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0026] It should be understood that the steps described in the method embodiments of this application may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this application is not limited in this respect.

[0027] As described in the background section, keyless entry systems have become a standard feature in vehicles, primarily implemented through two methods: contactless sensor-based unlocking and door handle contact capacitive sensor-based unlocking. The contactless sensor solution achieves automatic triggering through continuous communication between the key and the vehicle; however, in practical applications, its positioning accuracy is insufficient, and the unlocking trigger distance is unstable, often resulting in issues such as the door not locking when far from the vehicle and slow unlocking response when close. The capacitive sensor-based unlocking solution requires exposed metal sensor contacts on the door handle surface, such as... Figure 1 The image shows a schematic diagram of a traditional capacitive touchscreen door handle. The sensor contacts are directly exposed on the outer surface of the handle. It identifies the user's intention based on changes in capacitance caused by human contact, triggering the vehicle's unlocking or locking action. Figure 2 The diagram shows the internal structure of a traditional capacitive sensor door handle. The internal sensing components need to be installed in conjunction with the exposed contacts to complete the corresponding layout. This makes it highly susceptible to rain, temperature and humidity changes, and surface stains, which can lead to false triggering or sensor failure, affecting the stability of the user experience.

[0028] To address the shortcomings of the aforementioned solutions, the vehicle unlocking and locking control system of this invention, through its built-in radar detection device, action intent recognition, and hardware reuse design, can solve problems such as insufficient locking accuracy, unstable triggering distance, easy failure when far from the lock, slow unlocking response and security risks associated with contactless unlocking and locking systems. It also addresses issues with capacitive sensing locks, such as the need for exposed contacts, complex manufacturing processes, susceptibility to environmental interference leading to false triggering or sensing failure, and limited waterproof and dustproof protection levels. Figure 3 The image shown is a schematic diagram of the door handle of a vehicle unlocking and locking control system according to an embodiment of this application. The handle surface has no exposed sensor contacts; the radar detection device is located inside the door handle housing. Figure 4The diagram shown is a schematic of the internal structure of a door handle in a vehicle unlocking and locking control system according to an embodiment of this application. The radar module is built into the handle cavity and is not affected by external environmental factors such as rain, temperature and humidity. It can accurately distinguish between the user's actual grip operation and non-intentional behavior such as passing by or unintentional touching, so as to realize stable and reliable non-contact door handle unlocking and locking detection, and improve the overall user experience and protection performance of the vehicle keyless entry system.

[0029] The following is for reference. Figures 5-6 This application describes a vehicle locking and unlocking control system provided in an embodiment.

[0030] like Figure 5 The diagram shown is a schematic representation of the overall architecture of a vehicle unlocking and locking control system according to an embodiment of this application. The vehicle unlocking and locking control system includes: a vehicle body controller 1, mounted on the vehicle body; a radar anchor point group 2, mounted on the vehicle body, used to communicate with an unlocking device 3 to verify the authorization status of the unlocking device 3; and a radar detection device 4, mounted inside the vehicle's unlocking and locking components, communicatively connected to the vehicle body controller 1, used to emit radar pulse signals and receive reflected echo signals within a preset working range to identify the triggering action of a target object outside the unlocking and locking components, and to generate and send an unlocking trigger signal to the vehicle body controller 1 when a valid triggering action is identified; the vehicle body controller 1 receives the unlocking trigger signal and, in response to the unlocking trigger signal, verifies the authorization status of the unlocking device 3 based on the radar anchor point group 2, and controls the unlocking and locking components to perform the unlocking action after successful verification.

[0031] Specifically, the vehicle body controller 1 is installed inside the vehicle body, transmits data with various functional modules via the vehicle communication bus, completes the logic judgment for locking and unlocking, and issues corresponding control commands. The radar anchor point group 2 contains multiple dispersed anchor point nodes, installed at different locations on the vehicle body. It can establish two-way communication with the user-carried unlocking device 3 and complete distance measurement. Through multi-point positioning, it obtains the real-time spatial position of the unlocking device 3, determines whether the unlocking device 3 is within the preset authorized area, and completes the authorization status verification. The radar detection device 4 is built into the housing of the vehicle's opening and closing components. It uses ultra-wideband radar technology to emit pulse signals and simultaneously receives echo signals reflected from targets. The signal can penetrate the non-metallic shell of the opening and closing components, eliminating the need for exposed sensing structures on the component surface. The radar detection device 4 can monitor the distance of the target object outside the opening and closing component in real time and identify the corresponding action characteristics. When it is determined that the triggering action of the target is consistent with the preset unlocking intention, an unlocking trigger signal is generated and sent to the body controller 1. After receiving the unlocking trigger signal sent by the radar detection device 4, the body controller 1 verifies the authorization status of the unlocking device 3 through the radar anchor point group 2. After the verification is passed, the control command is output to the door actuator to drive the opening and closing component to complete the unlocking or locking action.

[0032] As an optional embodiment, the triggering action includes the approaching action and / or grasping action of the target object.

[0033] Specifically, the approach action refers to the action of a target object moving from the outside of the opening and closing component towards the surface of the component and entering the radar's preset detection range. At the same time, the system initially detects the approaching state of the object. The gripping action refers to the action of the target object staying within the set distance range and maintaining a stable posture after approaching. This is used to confirm that the target object has a clear intention to unlock or close, and can filter out unintentional behaviors such as passing by or briefly approaching, reducing false triggering.

[0034] As an optional embodiment, the radar detection device 4 is integrated inside the housing of the opening and closing component. The radar pulse signal emitted by the antenna of the radar detection device 4 is radiated outward through the housing of the opening and closing component, and the reflected echo signal is received by the antenna through the housing of the opening and closing component.

[0035] Specifically, the ultra-wideband signal of the radar detection device 4's antenna can penetrate non-metallic materials, enabling it to directly transmit radar pulse signals through the housing of the opening and closing component, while simultaneously receiving reflected echo signals from external targets. This built-in integration eliminates the need for mounting holes, exposed contacts, or exposed wires on the outer surface of the opening and closing component, achieving a higher level of waterproof and dustproof sealing design.

[0036] As an optional embodiment, the radar detection device 4 includes a radar chip 41, a radar antenna 42, a radar controller 43, and a communication interface 44; the radar chip 41 transmits radar pulse signals through the radar antenna 42 and receives reflected echo signals reflected by the target object; the radar controller 43 processes the received reflected echo signals to identify trigger actions and communicates with the vehicle body controller 1 through the communication interface 44.

[0037] Specifically, such as Figure 6 The diagram shows a radar detection device for a vehicle unlocking and locking control system according to an embodiment of this application. The radar chip 41 generates an ultra-wideband radar pulse signal, which is transmitted to the outside of the unlocking and locking component through the radar antenna 42. The echo signal generated by the reflection of the external target object is also received by the radar antenna 42 and transmitted back to the radar chip 41, completing the initial acquisition of the echo signal. The radar controller 43 is connected to the radar chip 41 and performs filtering, feature extraction, and other processing on the received echo signal. The extracted signal features are compared with preset action feature parameters to identify the trigger action of the target object and determine whether it conforms to the unlocking and locking operation intention. The communication interface 44 is connected between the radar controller 43 and the body controller 1. It can send the unlocking and locking trigger signal generated by the radar controller 43 to the body controller 1, and can also receive relevant control commands issued by the body controller 1.

[0038] As an optional embodiment, the radar detection device 4 shares the radar chip 41 and communication interface 44 with the vehicle's digital unlocking system. The radar detection device 4 has a radar detection working mode and a ranging communication working mode, and is configured to switch between the radar detection working mode and the ranging communication working mode.

[0039] Specifically, when the radar detection device 4 is in radar detection mode, the radar chip 41 transmits and receives reflected pulse signals through the radar antenna 42 to detect the target object outside the opening and closing component and identify the corresponding trigger action. When a valid trigger action is identified, the radar detection device 4 switches to ranging and communication mode. The radar chip 41 establishes two-way communication with the unlocking device 3 through the communication interface 44 and completes ranging to verify the authorization status of the unlocking device 3. After the authorization verification is completed, the device can switch back to radar detection mode and continue to perform normal target detection.

[0040] As an optional embodiment, the opening and closing component is the vehicle's door handle, and the radar detection device 4 is located inside the vehicle's left front door handle and / or right front door handle.

[0041] Specifically, in practical applications, depending on the vehicle configuration, the radar detection device 4 can be installed inside the front door handles on both the left and right sides, or it can be installed inside only one front door handle. The front door handle is the main operating part when the target opens the door. By setting the radar detection device 4 inside the handle's internal cavity, its detection range can completely cover the normal operating area where the user reaches near and grasps the handle.

[0042] The vehicle unlocking and locking control system provided in the embodiments of this application includes: a vehicle body controller, disposed on the vehicle body; a radar anchor point group, disposed on the vehicle body, used to communicate with an unlocking device to verify the authorization status of the unlocking device; a radar detection device, built into the vehicle's unlocking component, communicatively connected to the vehicle body controller, used to emit radar pulse signals and receive reflected echo signals within a preset working range to detect the triggering action of a target object outside the unlocking component, and generate and send an unlocking trigger signal to the vehicle body controller when a valid triggering action is identified; the vehicle body controller is used to receive the unlocking trigger signal and, in response to the unlocking trigger signal, verify the authorization status of the unlocking device based on the radar anchor point group, and control the unlocking component to perform the unlocking action after the verification is passed. Therefore, this application can solve the problems of insufficient locking accuracy, unstable trigger distance, easy failure when the door is far from the lock, slow unlocking response and security risks of contactless unlocking and locking, as well as the problems of capacitive induction unlocking and locking which require exposed contacts, have complex manufacturing process, are susceptible to environmental interference leading to false triggering or induction failure, and have limited waterproof and dustproof protection level. The radar module is built into the door handle shell and is not affected by external environmental factors such as rain, temperature and humidity. It can accurately distinguish between the user's actual grip operation and unintentional behavior such as passing by or unintentional touch, so as to achieve stable and reliable contactless door handle unlocking and locking detection, thereby improving the overall user experience and protection performance of the vehicle keyless entry system.

[0043] refer to Figure 7 This is a flowchart illustrating a vehicle unlocking and locking control method according to an embodiment of this application.

[0044] Step S701: A radar pulse signal is emitted and a reflected echo signal is received by a radar detection device built into the vehicle opening and closing component to detect the triggering action of the target object outside the opening and closing component.

[0045] Specifically, the radar detection device continuously emits pulse signals outward according to a preset cycle. The signals can directly penetrate the non-metallic shell of the opening and closing component and cover the outer detection area. When a target object enters the detection area, the pulse signal is reflected after contacting the target, and the corresponding echo signal is received by the radar detection device to detect the triggering action of the target object outside the opening and closing component.

[0046] Step S702: Determine whether the triggering action of the target object conforms to the preset unlocking intention based on the reflected echo signal.

[0047] As an optional embodiment, determining whether the triggering action of the target object conforms to the preset unlocking intention based on the reflected echo signal includes: when the radar detection device is in an idle state where no target object is detected, acquiring a first echo signal and storing it as an environmental background feature; in response to the radar detection device detecting the target object, acquiring a second echo signal; filtering the environmental background features in the second echo signal to obtain the target echo feature; and comparing the target echo feature with the features of the preset unlocking intention to determine whether the triggering action of the target object conforms to the preset unlocking intention.

[0048] Specifically, when the radar detection device is in an idle state without detecting a target object, it collects the first echo signal of the current scene and stores it as environmental background features. When the radar detection device detects a target object entering the detection range, it collects the second echo signal in real time. The system filters out the stored environmental background features from the second echo signal, eliminates signal interference caused by fixed environmental clutter and static obstacles, and extracts the target echo features that correspond only to the target object. The extracted target echo features are compared with the unlocking intent features pre-calibrated by the system. Based on the comparison results, it is determined whether the triggering action of the current target object conforms to the preset unlocking intent. When all features meet the judgment requirements, the current triggering action is determined to conform to the preset unlocking intent. If the features do not match, it is determined to be an invalid operation.

[0049] In step S703, if the triggering action of the target object is determined to be consistent with the preset unlocking intention, an unlocking trigger signal is generated and sent to the vehicle controller; if it is determined not to be consistent, no unlocking trigger signal is generated.

[0050] Specifically, when the system determines that the triggering action of the target object conforms to the preset unlocking intention, the radar controller generates a corresponding unlocking trigger signal and sends the signal to the body controller through the communication interface, indicating that a valid operation with the intention to unlock has been detected on the outside of the opening and closing component.

[0051] In step S704, the vehicle controller responds to the unlock trigger signal, verifies the authorization status of the unlocking device through the radar anchor point group, and controls the opening and closing components to perform the unlocking action based on the verification result.

[0052] Specifically, the radar anchor point group and the unlocking device communicate and measure distances to obtain the actual location of the unlocking device. The body controller determines whether the unlocking device is within a pre-defined authorized area, thus determining the authorization status of the unlocking device. If the verification result indicates valid authorization, the body controller issues a control command to control the opening and closing components to complete the unlocking action; if the unlocking device is not within the authorized range, the body controller ignores the trigger signal and will not perform the unlocking operation.

[0053] like Figure 8The diagram illustrates an application scenario of this application. When a target person approaches a vehicle with a car key, they reach out and grasp the door handle of the left or right front door. The radar detection device inside the door handle first detects the proximity of the hand. When the distance between the hand and the handle surface is less than or equal to a preset proximity threshold, it confirms that the user has a preliminary intention to approach. Then, it further detects the characteristics of the grasping action to determine whether the user has completed a stable grasping operation. After confirming that the grasping intention is valid, the system transmits a trigger signal to the body control module (CEM). The body control module verifies the authorization status of the car key. After the verification is successful, the body control module outputs a control command to unlock the car door, completing the entire keyless entry operation.

[0054] It should be noted that the proximity threshold is a distance threshold used by radar detection devices to distinguish between a real user's hand approaching the door handle and irrelevant interference signals, and to identify the user's initial intention to approach.

[0055] As an optional embodiment, the method further includes: calculating the real-time distance between the target object and the vehicle opening / closing component using the reflected echo signal; in response to the real-time distance being less than or equal to a preset proximity threshold, initiating continuous monitoring of the target object's actions; determining, based on the results of the continuous monitoring, whether the dwell time and / or distance change of the target object outside the opening / closing component meets a preset triggering condition; and in response to the target object's dwell time and / or distance change meeting the preset triggering condition, determining that the target object's triggering action conforms to a preset unlocking intent.

[0056] Specifically, such as Figure 9 The diagram shows a three-stage grasping action recognition embodiment of this application. When the target object is far from the opening and closing component and the distance is greater than the preset proximity threshold (e.g., d≥5cm, which can be set according to actual conditions), the radar detection device is in a low-power monitoring state, only transmitting radar pulse signals in the basic cycle to maintain environmental perception. As the target object continues to approach the opening and closing component, when the real-time distance is less than or equal to the preset proximity threshold, the system automatically switches to the detection state, increases the acquisition frequency of the echo signal, and continuously tracks and monitors the position change of the target. After the target completes the grasping action, the system combines the fact that the distance between the target and the opening and closing component remains within the preset proximity threshold, the dwell time within this range is greater than the preset dwell time, and the distance change amplitude remains stable. When all the features meet the preset triggering conditions, it can be determined that the triggering action of the target object conforms to the preset unlocking intention, and the system enters the unlocking and locking triggering state.

[0057] As an optional embodiment, the triggering conditions include the duration for which the real-time distance is continuously less than or equal to the proximity threshold exceeds a first time threshold, and the change in the real-time distance within a second time threshold is less than a preset fluctuation range.

[0058] Specifically, when the real-time distance of the target object remains less than or equal to the approach threshold for a duration exceeding a preset first time threshold, it confirms that the target has remained within the detection range for a sufficient period of time, filtering out invalid scenarios such as pedestrians quickly passing by or objects briefly brushing past. When the change in the target's real-time distance within a second time threshold is less than a preset fluctuation range, it verifies that the target is in a relatively stable state, corresponding to the action characteristics of holding the handle, eliminating unintentional actions such as hand shaking and repeated changes in distance, and reducing the probability of false triggering caused by external interference.

[0059] like Figure 10 The diagram shows a radar detection and unlocking / locking flowchart of a vehicle unlocking / locking control method according to an embodiment of this application. When an object is detected within range, the system first calculates the real-time distance between the target and the surface of the opening / closing component based on the reflected echo signal, and determines whether the distance is less than or equal to a preset proximity threshold. If the target distance is greater than the preset proximity threshold, it indicates that the target object has not entered the effective operating area, and the system returns to the periodic detection state to continue basic monitoring. If the target distance is less than or equal to the preset proximity threshold, the system further collects and identifies the target's gripping action characteristics. After completing the action characteristic analysis, the system determines whether the current target action conforms to the preset gripping intention. If the identification result does not meet the judgment condition of gripping intention, the system returns to the state of periodically transmitting detection signals. If the target action is determined to conform to the gripping intention, the unlocking / locking process is triggered. The system verifies the authorization status of the digital key through the radar anchor point group. If the verification result is that the authorization is invalid, the system terminates the current triggering process and returns to the initial periodic detection state. If the authorization is confirmed to be valid, a control command is output to execute the door unlocking / locking action.

[0060] As an optional embodiment, the vehicle controller, in response to the unlock trigger signal, verifies the authorization status of the unlocking device through the radar anchor point group, and controls the opening and closing components to perform the unlocking action according to the verification result. This includes: after receiving the unlock trigger signal, the vehicle controller activates the radar anchor point group on the vehicle to communicate and measure distance with the unlocking device to obtain the real-time location information of the unlocking device; determines whether the unlocking device is located within a preset authorized area based on the real-time location information; and confirms that the authorization status of the unlocking device is valid in response to the unlocking device being located within the preset authorized area.

[0061] Specifically, after receiving the unlock trigger signal, the body controller activates the radar anchor point group deployed on the vehicle, enabling each anchor point node to establish two-way communication with the unlocking device and perform ranging calculations to obtain the real-time position information of the unlocking device relative to the vehicle. The body controller compares the obtained real-time position information with a preset authorized area range to determine whether the unlocking device is within the authorized area. When it is determined that the unlocking device is within the preset authorized area, the body controller confirms that the authorization status of the unlocking device is valid, outputs control commands, and controls the opening and closing components to perform the corresponding unlocking action.

[0062] As an optional embodiment, after generating and sending the unlock trigger signal to the vehicle controller, the method further includes: switching the operating mode of the radar detection device from radar detection mode to ranging communication mode, so that the radar detection device cooperates with the radar anchor point group to perform communication ranging on the unlocking device; and switching the radar detection device back to radar detection mode in response to obtaining the real-time location information of the unlocking device.

[0063] Specifically, after generating and sending the unlock trigger signal to the vehicle controller, the radar detection device switches its working mode from radar detection mode to ranging communication mode. It works with the radar anchor point group on the vehicle to communicate and measure distance with the unlocking device to obtain the real-time location information of the unlocking device. Once the system obtains the real-time location information of the unlocking device and completes the authorization status determination, the radar detection device automatically switches back to radar detection mode and continues to perform target detection and motion recognition work on the outside of the opening and closing components.

[0064] like Figure 11 The diagram shows a comparison between the embodiment of this application and a traditional capacitive sensing solution. Traditional capacitive sensing solutions achieve detection through exposed metal contacts, requiring an exposed sensing area on the outer shell of the opening / closing component. This makes it highly susceptible to false triggering when conductive media such as rain or condensation come into contact with the contacts. Furthermore, the exposed contact structure limits the overall protection level of the opening / closing component. This solution places the radar detection device inside the outer shell of the opening / closing component. Based on the characteristic that radar signals can penetrate non-metallic shell materials, target detection is achieved without any exposed sensing contacts. It is unaffected by external environmental interference such as rain, exhibiting good environmental stability. Simultaneously, radar detection allows for the setting of accurate distance thresholds, and combined with grip action feature recognition, it can filter out unintentional operations, reducing the probability of false triggering. The fully enclosed internal structure also allows the opening / closing component to achieve a higher level of protection.

[0065] According to the vehicle unlocking and locking control method provided in the embodiments of this application, applied to the vehicle unlocking and locking control system as described above, the method includes: transmitting a radar pulse signal and receiving a reflected echo signal through a radar detection device built into the vehicle unlocking and locking component to detect the triggering action of a target object outside the unlocking and locking component; determining whether the triggering action of the target object conforms to a preset unlocking intention based on the reflected echo signal; if it is determined that the triggering action of the target object conforms to the preset unlocking intention, generating and sending an unlocking trigger signal to the vehicle controller; if it is determined that it does not conform, not generating an unlocking trigger signal; the vehicle controller responds to the unlocking trigger signal, verifies the authorization status of the unlocking device through a radar anchor point group, and controls the unlocking and locking component to perform an unlocking action according to the verification result. Therefore, this application can solve the problems of insufficient locking accuracy, unstable trigger distance, easy failure when the door is far from the lock, slow unlocking response and security risks of contactless unlocking and locking, as well as the problems of capacitive induction unlocking and locking which require exposed contacts, have complex manufacturing process, are susceptible to environmental interference leading to false triggering or induction failure, and have limited waterproof and dustproof protection level. The radar module is built into the door handle shell and is not affected by external environmental factors such as rain, temperature and humidity. It can accurately distinguish between the user's actual grip operation and unintentional behavior such as passing by or unintentional touch, so as to achieve stable and reliable contactless door handle unlocking and locking detection, thereby improving the overall user experience and protection performance of the vehicle keyless entry system.

[0066] It should be noted that the method of this embodiment can be executed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario, where multiple devices cooperate to complete the task. In such a distributed scenario, one of these devices may execute only one or more steps of the method of this embodiment, and the multiple devices will interact with each other to complete the above method.

[0067] It should be noted that the above description describes some embodiments of the present invention. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims may be performed in a different order than that shown in the above embodiments and still achieve the desired results. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0068] refer to Figure 12The diagram below is a block diagram of an electronic device according to some embodiments of the present invention. It illustrates a more specific hardware structure of an electronic device provided in this application embodiment. The device may include: a processor 1210, a memory 1220, an input / output interface 1230, a communication interface 1240, and a bus 1250. The processor 1210, memory 1220, input / output interface 1230, and communication interface 1240 are internally connected to each other via the bus 1250.

[0069] The processor 1210 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0070] The memory 1220 can be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1220 can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program code is stored in the memory 1220 and is called and executed by the processor 1210.

[0071] Input / output interface 1230 is used to connect input / output modules to realize information input and output. Input / output modules can be configured as components in the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Input devices may include keyboards, mice, touch screens, microphones, various sensors, etc., and output devices may include displays, speakers, vibrators, indicator lights, etc.

[0072] The communication interface 1240 is used to connect a communication module (not shown in the figure) to enable communication between this device and other devices. The communication module can communicate via wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0073] Bus 1250 includes a pathway for transmitting information between various components of the device, such as processor 1210, memory 1220, input / output interface 1230, and communication interface 1240.

[0074] It should be noted that although the above-described device only shows the processor 1210, memory 1220, input / output interface 1230, communication interface 1240, and bus 1250, in specific implementations, the device may also include other components necessary for normal operation. Furthermore, those skilled in the art will understand that the above-described device may only include the components necessary for implementing the embodiments of this specification, and not necessarily all the components shown in the figures.

[0075] The electronic devices described above are used to implement the corresponding vehicle unlocking and locking control methods in any of the foregoing embodiments, and have the beneficial effects of the corresponding vehicle unlocking and locking control method embodiments, which will not be repeated here.

[0076] Based on the same concept, corresponding to the vehicle unlocking and locking control method provided in any of the above embodiments, this application also provides a computer-readable storage medium storing a program or instructions, which, when executed by a processor, implements the vehicle unlocking and locking control method as described in the second aspect.

[0077] The aforementioned computer-readable storage medium can be any available medium or data storage device that a computer can access, including but not limited to magnetic storage (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MOs), etc.), optical storage (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND flash), solid-state drives (SSDs)).

[0078] The computer instructions stored in the storage medium of the above embodiments are used to cause the computer to execute the corresponding vehicle unlocking and locking control method in any of the foregoing embodiments, and have the beneficial effects of the corresponding vehicle unlocking and locking control method embodiments, which will not be repeated here.

[0079] The vehicle in the above embodiments includes a vehicle unlocking and locking control system as described in any of the foregoing claims. The vehicle unlocking and locking control system is used to execute the steps of the vehicle unlocking and locking control method as described in any of the foregoing claims, and has the beneficial effects of the corresponding vehicle unlocking and locking control method embodiments, which will not be repeated here.

[0080] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0081] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0082] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A vehicle unlocking and locking control system, characterized in that, include: The vehicle body controller (1) is installed on the vehicle body; Radar anchor point group (2) is set on the vehicle body and is used to communicate with the unlocking device to verify the authorization status of the unlocking device (3); The radar detection device (4) is installed inside the opening and closing component of the vehicle and is connected in communication with the body controller (1). It is used to transmit radar pulse signals and receive reflected echo signals within a preset working range to identify the triggering action of the target object outside the opening and closing component, and generate and send an unlocking trigger signal to the body controller (1) when a valid triggering action is identified. The body controller (1) is used to receive the unlock trigger signal and, in response to the unlock trigger signal, verify the authorization status of the unlocking device (3) based on the radar anchor group (2), and control the opening and closing components to perform the unlocking action after the verification is passed.

2. The vehicle unlocking and locking control system according to claim 1, characterized in that, The triggering action includes the approaching action and / or grasping action of the target object.

3. The vehicle unlocking and locking control system according to claim 1, characterized in that, The radar detection device (4) is integrated inside the housing of the opening and closing component. The radar pulse signal emitted by the antenna of the radar detection device (4) is radiated outward through the housing of the opening and closing component, and the reflected echo signal is received by the antenna through the housing of the opening and closing component.

4. The vehicle unlocking and locking control system according to claim 1, characterized in that, The radar detection device (4) includes a radar chip (41), a radar antenna (42), a radar controller (43), and a communication interface (44). The radar chip (41) transmits the radar pulse signal through the radar antenna (42) and receives the reflected echo signal reflected by the target object; The radar controller (43) is used to process the received reflected echo signal to identify the trigger action and communicate with the body controller (1) through the communication interface (44).

5. The vehicle unlocking and locking control system according to claim 4, characterized in that, The radar detection device (4) shares the radar chip (41) and the communication interface (44) with the vehicle's digital unlocking system. The radar detection device (4) has a radar detection working mode and a ranging communication working mode, and is configured to switch between the radar detection working mode and the ranging communication working mode.

6. The vehicle unlocking and locking control system according to claim 1, characterized in that, The opening and closing component is the door handle of the vehicle, and the radar detection device (4) is located inside the left front door handle and / or the right front door handle of the vehicle.

7. A vehicle unlocking / locking control method, characterized in that, The method, applied to the vehicle unlocking and locking control system as described in claims 1 to 6, comprises: The triggering action of the target object outside the opening and closing component is detected by transmitting radar pulse signals and receiving reflected echo signals through a radar detection device built into the vehicle opening and closing component. Based on the reflected echo signal, determine whether the triggering action of the target object conforms to the preset unlocking intention; If the triggering action of the target object is determined to be consistent with the preset unlocking intention, an unlocking trigger signal is generated and sent to the vehicle controller; if it is determined not to be consistent, the unlocking trigger signal is not generated. In response to the unlock trigger signal, the vehicle controller verifies the authorization status of the unlocking device through the radar anchor point group, and controls the opening and closing components to perform the unlocking action based on the verification result.

8. The vehicle unlocking and locking control method according to claim 7, characterized in that, The step of determining whether the triggering action of the target object conforms to the preset unlocking intention based on the reflected echo signal includes: When the radar detection device is in an idle state where no target object is detected, the first echo signal is acquired and stored as environmental background features; In response to the radar detection device detecting the target object, a second echo signal is acquired; The environmental background features in the second echo signal are filtered out to obtain the target echo features; The target echo characteristics are compared with the characteristics of the preset unlocking intention to determine whether the triggering action of the target object conforms to the preset unlocking intention.

9. The vehicle unlocking and locking control method according to claim 7, characterized in that, The method further includes: The real-time distance between the target object and the vehicle opening / closing component is calculated using the reflected echo signal. In response to the real-time distance being less than or equal to a preset proximity threshold, continuous monitoring of the target object's actions is initiated. Based on the results of the continuous monitoring, it is determined whether the dwell time and / or distance change of the target object outside the opening and closing component meet the preset triggering conditions; In response to the target object's dwell time and / or distance change on the outside of the opening and closing component satisfying a preset triggering condition, it is determined that the triggering action of the target object conforms to a preset unlocking intention.

10. The vehicle unlocking and locking control method according to claim 9, characterized in that, The triggering conditions include the duration for which the real-time distance is continuously less than or equal to the proximity threshold exceeding a first time threshold, and the magnitude of the change in the real-time distance within a second time threshold being less than a preset fluctuation range.

11. The vehicle unlocking and locking control method according to claim 7, characterized in that, The vehicle controller, in response to the unlock trigger signal, verifies the authorization status of the unlocking device through the radar anchor point group, and controls the opening and closing components to perform an unlocking action based on the verification result, including: After receiving the unlocking trigger signal, the vehicle controller activates the radar anchor point group on the vehicle to communicate and measure distance with the unlocking device in order to obtain the real-time location information of the unlocking device. The system determines whether the unlocking device is located within a preset authorized area based on the real-time location information. In response to the fact that the unlocking device is located within a preset authorized area, the authorization status of the unlocking device is confirmed to be valid.

12. The vehicle unlocking and locking control method according to claim 7, characterized in that, After generating and sending the unlock trigger signal to the vehicle controller, the method further includes: The working mode of the radar detection device is switched from radar detection mode to ranging communication mode, so that the radar detection device can cooperate with the radar anchor point group to perform communication ranging on the unlocking device. In response to obtaining the real-time location information of the unlocking device, the radar detection device is switched back to the radar detection mode.

13. An electronic device, characterized in that, include: A processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the vehicle unlocking / locking control method as described in any one of claims 7 to 12.

14. A computer-readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the vehicle unlocking and locking control method as described in any one of claims 7 to 12.

15. A vehicle, characterized in that, The system includes a vehicle unlocking and locking control system as described in any one of claims 1 to 6, wherein the vehicle unlocking and locking control system is used to perform the steps of the vehicle unlocking and locking control method as described in any one of claims 7 to 12.

Images