A control region acquisition method, device, apparatus and readable storage medium

Abstract

The application discloses a control area acquisition method and device, equipment and a readable storage medium, which can be applied to the field of signal processing. A digital key controller acquires the communication state of a digital key antenna. If the communication state of at least one digital key antenna is in an abnormal state, a new control area of a control object is acquired. Since the new control area of the control object overlaps with the original control area of the control object, and the new control area of the control object is larger than the original control area of the control object, the application enlarges the control area of the control object when the communication state of at least one digital key antenna is in an abnormal state, so as to improve the control accuracy of the control object and improve the user experience.

Description

Technical Field

[0001] This application relates to the field of data processing technology, and in particular to a method, apparatus, device and readable storage medium for acquiring a control area. Background Technology

[0002] In a vehicle's electronic control system, the digital key controller receives digital signals used to locate the digital key via a digital key antenna. Based on these signals, it identifies the key's location and controls the object when the key enters its controlled area. For example, many vehicles are equipped with Bluetooth keys based on Bluetooth communication and smart devices. After successful activation, smart devices can be used to lock and unlock the vehicle's doors. To improve user experience, the digital key controller uses the Bluetooth digital antenna to locate the smart device and then uses this location to achieve precise control over the door locking and unlocking. Figure 1 This is a schematic diagram illustrating the division of the control area of ​​a car door, such as... Figure 1 As shown, the area surrounding the vehicle is finely divided into Zone 1, Zone 2, and Zone 3. When the location of the smart device, based on Bluetooth signal positioning, is in Zone 1, the driver's side door can be locked or unlocked. However, under adverse conditions, the digital key antenna's signal transmission and reception may be unstable, resulting in low accuracy in the smart device's location recognition. In this case, precise control of the door's locking and unlocking cannot be achieved based on the smart device's location, leading to a poor user experience.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] This application provides a method, apparatus, device, and readable storage medium for obtaining a control area, as follows:

[0005] A control area acquisition method, applied to a digital key controller, the control area acquisition method comprising:

[0006] Obtain the communication status of the digital key antenna;

[0007] If at least one of the digital key antennas is in an abnormal communication state, a new control area of ​​the controlled object is obtained. The new control area of ​​the controlled object overlaps with the original control area of ​​the controlled object, and the new control area of ​​the controlled object is larger than the original control area of ​​the controlled object.

[0008] Optionally, the communication status of the digital key antenna is obtained, including:

[0009] Acquire the digital pairing signal transmitted by the digital key antenna, and determine whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal;

[0010] The controller local area network (CAN) communication signal transmitted by the digital key antenna is obtained, and the CAN communication signal is used to determine whether the CAN communication of the digital key antenna is in a CAN communication failure state.

[0011] If the digital key antenna satisfies at least one of the following conditions: it is in a CAN communication failure state or a Bluetooth communication failure state, then the communication state of the digital key antenna is determined to be abnormal.

[0012] Optionally, determining whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal includes:

[0013] If no digital pairing signal is received from any of the digital key antennas within a preset first time period, or if the received Bluetooth pairing signal from the digital key antenna does not meet the preset first pairing condition, the digital key antenna is determined to be in a Bluetooth communication failure state.

[0014] Optionally, determining whether the CAN communication of the digital key antenna is in a CAN communication failure state based on the CAN communication signal includes:

[0015] If no CAN communication signal is received from the digital key antenna within the preset second time period, or if the received CAN communication signal from the digital key antenna does not meet the preset second pairing condition, the digital key antenna is determined to be in a CAN communication failure state.

[0016] Optionally, the method for obtaining the control region also includes:

[0017] The position of the digital key is determined based on the digital signals transmitted by each of the digital key antennas;

[0018] The control object corresponding to the new control area to which the location of the digital key belongs is taken as the target control object;

[0019] Issue control commands to the target controlled object.

[0020] Optionally, obtaining a new control region for the controlled object includes:

[0021] Obtain the target original control region set of the controlled object, wherein the target original control region set includes at least one set of target original control regions, and the target original control regions include multiple original control regions;

[0022] For the target original control region, construct a connected region covering each original control region within the target original control region;

[0023] Based on the connected regions corresponding to the original control region of the target, a new control region of the controlled object is obtained.

[0024] Optionally, obtaining a new control region for the controlled object includes:

[0025] Obtain a set of control regions, which includes all original control regions of all controlled objects;

[0026] Construct a connected region covering each original control region in the set of control regions;

[0027] Based on the connected regions corresponding to the set of control regions, a new control region of the controlled object is obtained.

[0028] A control area acquisition device, comprising:

[0029] The status detection unit is used to obtain the communication status of the digital key antenna;

[0030] The control area update unit is used to obtain a new control area of ​​the controlled object if the communication status of at least one of the digital key antennas is in an abnormal state. The new control area of ​​the controlled object overlaps with the original control area of ​​the controlled object, and the new control area of ​​the controlled object is larger than the original control area of ​​the controlled object.

[0031] A control area acquisition device includes: a memory and a processor;

[0032] The memory is used to store programs;

[0033] The processor is used to execute the program to implement the various steps of the control area acquisition method.

[0034] A readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of a control region acquisition method.

[0035] As can be seen from the above technical solutions, the control area acquisition method, apparatus, device, and readable storage medium provided in this application can be applied to the field of signal processing. The digital key controller acquires the communication status of the digital key antenna. If at least one digital key antenna is in an abnormal communication state, a new control area for the controlled object is acquired. Since the new control area of ​​the controlled object overlaps with the original control area of ​​the controlled object, and the new control area is larger than the original control area, this application expands the control area of ​​the controlled object when at least one digital key antenna is in an abnormal communication state, thereby improving the accuracy of control over the controlled object and enhancing the user experience. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A schematic diagram illustrating the original control area division of a vehicle door, provided for an embodiment of this application;

[0038] Figure 2 A flowchart illustrating a method for obtaining a control region provided in an embodiment of this application;

[0039] Figure 3 This is a schematic diagram of a control area acquisition system provided in an embodiment of this application;

[0040] Figure 4a A flowchart illustrating a specific implementation of a control region acquisition method provided in this application embodiment;

[0041] Figure 4b A schematic diagram illustrating a region re-division result provided in an embodiment of this application;

[0042] Figure 5 A flowchart illustrating a specific implementation of another control region acquisition method provided in this application embodiment;

[0043] Figure 6 A schematic diagram illustrating a region re-division result provided in an embodiment of this application;

[0044] Figure 7 This is a schematic diagram of the structure of a control area acquisition device provided in an embodiment of this application;

[0045] Figure 8 This is a schematic diagram of a control area acquisition device provided in an embodiment of this application. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] This application provides a control area acquisition method applicable to, but not limited to, a digital key controller in a control system. The control system includes multiple digital key antennas, digital keys, and a digital key controller distributed at preset locations. The digital key includes, but is not limited to, virtual keys implemented using digital communication technologies such as Bluetooth, Wi-Fi, and Ultra Wideband (UWB). The controlled objects include, but are not limited to, pre-configured objects, such as car doors, seats, and pedals. Controls corresponding to various controlled objects are pre-configured; for example, controls for car doors include locking / unlocking control, controls for seats include position adjustment control, and controls for pedals include retraction / extension control.

[0048] In the prior art, the digital key controller receives the digital positioning signal emitted by the digital key through the digital key antenna and locates the digital key based on the digital positioning signal. When the digital key enters the control area of ​​the controlled object, it triggers the control of the controlled object. In this application, the digital key controller optimizes the control area of ​​the controlled object to achieve optimized control of the controlled object in the event of digital key antenna malfunction, thereby improving the user experience. Figure 2 This is a flowchart illustrating a method for obtaining a control region provided in an embodiment of this application, as shown below. Figure 2 As shown, this method includes:

[0049] S201. Obtain the communication status of the digital key antenna.

[0050] In this embodiment, the communication status of the digital key antenna is used to indicate whether the communication connection between the digital key antenna and the digital key controller is normal. Optionally, the digital key controller acquires the communication status of the digital key antenna according to a detection cycle, or the digital key controller acquires the communication status of the digital key antenna when it detects that the digital key is close to any controlled object, wherein "the digital key is close to any controlled object" means that at least one digital signal emitted by the digital key is detected through the digital key antenna.

[0051] In one optional embodiment, the method for obtaining the communication status of the digital key antenna includes:

[0052] The system acquires the digital pairing signal transmitted by the digital key antenna. Based on the digital pairing signal, it determines whether the digital communication of the digital key antenna is in a digital communication failure state. It also acquires the CAN communication signal transmitted by the digital key antenna. Based on the CAN communication signal, it determines whether the CAN communication of the digital key antenna is in a CAN communication failure state. If the digital key antenna meets at least one of the following conditions: it is in a CAN communication failure state or a Bluetooth communication failure state, then the communication state of the digital key antenna is determined to be abnormal.

[0053] S202. If at least one digital key antenna is in an abnormal communication state, obtain the new control area of ​​the controlled object.

[0054] In this embodiment, the new control region of the controlled object overlaps with the original control region of the controlled object, and the new control region of the controlled object is larger than the original control region of the controlled object.

[0055] As can be seen from the above technical solutions, the control area acquisition method provided in this application involves a digital key controller acquiring the communication status of a digital key antenna. If at least one digital key antenna is in an abnormal communication state, a new control area for the controlled object is acquired. Since the new control area overlaps with the original control area and is larger than the original control area, this application expands the control area of ​​the controlled object when at least one digital key antenna is in an abnormal communication state, thereby improving the accuracy of control and enhancing the user experience.

[0056] One possible application scenario for the control region acquisition method provided in this application embodiment is as follows:

[0057] The digital key controller is a Bluetooth key controller, the digital key is a Bluetooth key, the digital key antenna is a Bluetooth antenna, and the controlled object is a vehicle door. In this application scenario, the Bluetooth key controller receives the Bluetooth signal sent by the Bluetooth key and, based on the Bluetooth signal, identifies the location of the Bluetooth key. Based on the location of the Bluetooth key, it determines the control area where the Bluetooth key is located, thereby achieving lock / unlock control of the corresponding vehicle door within the control area. The control area is one of multiple original control areas. Existing technologies pre-configure original control areas for each vehicle door to achieve fine-grained division of the vehicle's surrounding area, thus enabling targeted lock / unlock control.

[0058] Still with Figure 1 Taking the original control area of ​​the shown car door as an example, the original control area of ​​the driver's side door includes area 1 and area 2, the original control area of ​​the passenger side door includes area 2, and the original control area of ​​the tailgate includes area 3. The Bluetooth key controller uses multiple Bluetooth antennas (configured in preset positions on the vehicle). Figure 1(Not shown) Receives multiple Bluetooth signals from the Bluetooth key. Based on these signals, when the Bluetooth key is determined to be in area 1, the system controls the locking and unlocking of the two driver's side doors. When the Bluetooth key is determined to be in area 2, the system controls the locking and unlocking of the four doors on both sides of the vehicle. When the Bluetooth key is determined to be in area 3, the system controls the locking and unlocking of the tailgate. In this embodiment, locking and unlocking control refers to entering a triggerable locking / unlocking state or entering an unlocked state. Optionally, in the triggerable locking / unlocking state, sensors located at the doors send collected door opening signals (e.g., pressure signals or image signals) to the Bluetooth key controller. When the door is in the triggerable locking / unlocking state, the Bluetooth key controller sends an unlock command to the door lock controller, causing the door lock controller to unlock the door based on the unlock command. Alternatively, in the unlocked state, the door is already unlocked and can be opened directly.

[0059] In some extreme conditions (e.g., surrounded by numerous metal buildings, or in densely packed parking lots), the Bluetooth signal's positioning capability has inherent limitations, leading to inaccurate positioning of the Bluetooth key by the Bluetooth key controller. In such cases, it becomes impossible to control the door's locking and unlocking based on the original control area division, resulting in a poor user experience. For example, due to a weak Bluetooth signal, the actual location of the Bluetooth key might be in area 2, but the Bluetooth key controller's positioning result indicates the key's location is in area 3. In this situation, it's impossible to control the driver's side door's locking and unlocking based on the Bluetooth key.

[0060] Typically, inaccurate positioning of the Bluetooth key by the Bluetooth key controller is caused by abnormal Bluetooth signal transmission and reception by the Bluetooth antenna. For example, at least one Bluetooth antenna may be in a malfunctioning state. In this state, the Bluetooth antenna cannot receive the Bluetooth signal emitted by the Bluetooth key, or it cannot send the received Bluetooth signal to the digital key controller. Therefore, the control area acquisition method provided in this application activates a redundancy mode when at least one antenna is in a malfunctioning state, using a new control area to control the vehicle door. Since the precision of the new control area is lower than that of the initial control area, the control area acquisition method is optimized, improving the user experience.

[0061] The control region acquisition method provided in this application embodiment is applicable to, but not limited to, [the following]. Figure 3 The door control system shown is as follows: Figure 3 As shown, the door control system includes a multimedia host, a Bluetooth key controller, a Bluetooth antenna, and a Bluetooth key. The Bluetooth key and the Bluetooth antenna are pre-configured for Bluetooth communication, and the Bluetooth key controller and the Bluetooth antenna are pre-configured for both Bluetooth and CAN communication.

[0062] In this embodiment, the Bluetooth key controller is configured in the vehicle control system and is arranged on the central axis inside the vehicle (below the sub-dashboard). The Bluetooth antenna is configured in a preset position in the vehicle. For example, the number of Bluetooth antennas is N=4, and they are respectively configured on the front and rear bumpers. The Bluetooth key is a Bluetooth module configured in a smart mobile device (such as a smartphone, smartwatch, or smart bracelet). It should be noted that the secure communication between the Bluetooth key, Bluetooth antenna, and Bluetooth key controller is pre-built through the smart mobile device. That is, the Bluetooth key is pre-activated. The specific method for activating the Bluetooth key can be found in the prior art.

[0063] Figure 4a The specific implementation flow of a control region acquisition method provided in the embodiments of this application is as follows: Figure 4a As shown, this method is applied to a Bluetooth key controller, including:

[0064] S401. Obtain the Bluetooth pairing signal sent by the Bluetooth antenna, and determine whether the Bluetooth communication of the Bluetooth antenna is in a Bluetooth communication failure state based on the Bluetooth pairing signal.

[0065] In this embodiment, the Bluetooth key controller and each Bluetooth antenna are pre-configured to establish Bluetooth and CAN communication, enabling pairing between the Bluetooth key controller and the Bluetooth antenna. After successful pairing, the Bluetooth antenna periodically sends Bluetooth pairing signals and CAN communication signals. The specific content and pairing conditions of the Bluetooth pairing signals and CAN communication signals can be pre-configured for pairing verification.

[0066] For any Bluetooth antenna, if no Bluetooth pairing signal is received from the Bluetooth antenna within a preset first time period, or if the received Bluetooth pairing signal does not meet the preset first pairing condition, the Bluetooth antenna is determined to be in a Bluetooth communication failure state. Here, the first time period refers to the time period corresponding to the Bluetooth pairing signal transmission cycle. The first pairing condition refers to the pairing conditions of the Bluetooth pairing signal, for example, including a pre-agreed verification field.

[0067] S402. Obtain the CAN communication signal sent by the Bluetooth antenna, and determine whether the CAN communication of the Bluetooth antenna is in a CAN communication failure state based on the CAN communication signal.

[0068] For any Bluetooth antenna, if no CAN communication signal is received from the Bluetooth antenna within a preset second time period, or if the received CAN communication signal does not meet the preset second pairing conditions, the Bluetooth antenna is determined to be in a CAN communication failure state. Here, the second time period refers to the time period corresponding to the CAN communication signal transmission cycle. The second pairing conditions refer to the pairing conditions of the CAN communication signals, for example, including a pre-agreed verification field.

[0069] S403. If the Bluetooth antenna satisfies at least one of the following conditions: it is in a CAN communication failure state or a Bluetooth communication failure state, then the communication state of the Bluetooth antenna is determined to be abnormal.

[0070] S404. If at least one Bluetooth antenna is in an abnormal communication state, obtain the new control area of ​​the door.

[0071] In this embodiment, the new control area of ​​the door overlaps with the original control area of ​​the door, and the new control area of ​​the door is larger than the original control area of ​​the door.

[0072] Specifically, if the Bluetooth key is in a pairing error state, the Bluetooth key controller will activate redundancy mode. In redundancy mode, the control areas of each door are optimized based on the original area division results, resulting in a re-divided area. The original area division results include the original control areas of each door, and the re-divided area results include the new control areas of each door. For example... Figure 4b An example diagram illustrating the result of region re-division is provided. Region 4 represents the new control area for each door. That is, the new control area overlaps with regions 1, 2, and 3, respectively, and the area of ​​the new control area is larger than regions 1, 2, and 3. For the driver's side door, the original control area includes regions 1 and 2, and the new control area includes region 4. Clearly, the new control area for the driver's side door overlaps with regions 1 and 2 and is larger than regions 2 and 3.

[0073] It should be noted that there are multiple methods to obtain the new control area of ​​any door, and one of the available methods includes:

[0074] A1. Obtain the target original control area set of the car door.

[0075] In this embodiment, the target original control area set includes at least one set of target original control areas, and the target original control area includes multiple original control areas. For example, the original control area of ​​the first door includes a first area, a second area, a third area, and a fourth area. The first area and the second area are adjacent, and the third area and the fourth area are adjacent. The original control area of ​​the first door is divided into two sets of target original control areas. The first set of target original control areas includes the first area and the second area, and the second set of target original control areas includes the third area and the fourth area.

[0076] A2. For the target original control region, construct a connected region that covers each original control region within the target original control region.

[0077] For example, for the first set of target original control areas, a first connected region covering the first and second areas is constructed. For the second set of target original control areas, a second connected region covering the third and fourth areas is constructed. It should be noted that there are various specific methods for constructing a connected region covering multiple areas. For example, a circular connected region can be constructed with the farthest distance between multiple areas and the first door as the radius and the first door as the center point.

[0078] A3. Based on the connected regions corresponding to the original target control region, obtain a new control region for the door.

[0079] In this embodiment, for multiple sets of target original control regions, after obtaining the connected regions corresponding to each target original control region, each connected region is used as the new control region of the door.

[0080] For example, the new control area of ​​the first door includes a first connected area and a second connected area.

[0081] It should be noted that after obtaining the new control area for each door, the area re-division result is obtained. The area re-division result includes each door and its corresponding new control area. The area re-division result serves as the basis for controlling the door next time. That is, the door is controlled based on the new control area corresponding to each door in the area re-division result.

[0082] As can be seen from the above technical solutions, the control area acquisition method provided in this application embodiment allows the Bluetooth key controller to monitor the status of the Bluetooth antenna based on CAN communication and Bluetooth communication. When at least one Bluetooth antenna is in an abnormal state, a new control area for each door is acquired. Since the new control area is larger than the original control area and overlaps with the original control area, the control area of ​​the door is re-divided when the communication status of the Bluetooth antenna is abnormal. By reducing the fineness of the area division, the accuracy of the Bluetooth key controller in controlling the door locking and unlocking is improved, thereby improving the user experience.

[0083] Furthermore, based on the Bluetooth pairing signals and CAN communication signals transmitted by each Bluetooth antenna, it is determined whether each Bluetooth antenna is in an abnormal state, improving the accuracy of the judgment result on whether the communication status is abnormal, and further improving the reliability of door control. Specifically, the condition for enabling the redundancy mode is that the Bluetooth key controller determines, based on a combination of CAN and Bluetooth communication, that the connection pairing status of any Bluetooth antenna and Bluetooth key is invalid, that is, the Bluetooth antenna and Bluetooth key are in an abnormal pairing state. This avoids the occasional instability of CAN and Bluetooth communication and reduces the probability of mistakenly entering the redundancy mode.

[0084] It should be noted that the above embodiments are merely optional specific embodiments of a control region acquisition method provided in this application.

[0085] For example, S401 to S403 are optional methods for obtaining the communication status of a Bluetooth antenna. In another optional embodiment, the communication status can be detected based on the pairing signal between any one or more Bluetooth antennas and the Bluetooth key controller.

[0086] For example, in another optional embodiment, A1 to A3 can be implemented by the multimedia host. That is, when the Bluetooth key controller is in an abnormal state, it enters a redundancy mode and sends a redundancy mode activation command to the multimedia host. The multimedia host then executes A1 to A3 and feeds back the new control areas for each door to the Bluetooth key controller. Alternatively, the multimedia host pre-configures the new control areas for each door. When it receives the redundancy mode activation command from the Bluetooth key controller, it feeds back the pre-stored new control areas for each door to the Bluetooth key controller.

[0087] Figure 5 The specific implementation process of a control area acquisition method provided in this application embodiment in a door control scenario is as follows: Figure 5 As shown, this method includes:

[0088] S501 receives Bluetooth signals sent by the Bluetooth key through each Bluetooth antenna.

[0089] S502: Based on the signal parameters of each Bluetooth signal and the preset positioning algorithm, the location of the Bluetooth key is calculated.

[0090] In this embodiment, the signal parameters include signal strength, and the positioning algorithm includes a trigonometric function positioning algorithm. For specific positioning methods of Bluetooth keys, please refer to the prior art. This embodiment will not elaborate on these methods here.

[0091] S503: Obtain the Bluetooth pairing signal sent by the Bluetooth antenna, and determine whether the Bluetooth communication of the Bluetooth antenna is in a Bluetooth communication failure state based on the Bluetooth pairing signal.

[0092] S504. Obtain the CAN communication signal sent by the Bluetooth antenna, and determine whether the CAN communication of the Bluetooth antenna is in a CAN communication failure state based on the CAN communication signal.

[0093] S505. If the Bluetooth antenna meets at least one of the following conditions: it is in a CAN communication failure state or a Bluetooth communication failure state, then the communication state of the Bluetooth antenna is determined to be abnormal.

[0094] It should be noted that the specific implementation methods of S503 to S505 can be found in the above embodiments, and will not be repeated in this embodiment.

[0095] S506. If the communication status is abnormal and there is no Bluetooth antenna, obtain the original area division result.

[0096] It should be noted that the control area for the car door is the area near the door in this scenario. In other words, it can be assumed that when the Bluetooth key is in this area, the keyless unlocking permission for the car door can be opened.

[0097] In this embodiment, when no Bluetooth antenna is in an abnormal state, the communication status between the Bluetooth antenna and the Bluetooth key controller is confirmed to be normal, and the original region division result pre-configured for the normal state is obtained. Optionally, the original region division result is obtained from the multimedia host.

[0098] S507: Select the door corresponding to the original control area where the Bluetooth key is located as the target door.

[0099] S508. If at least one Bluetooth antenna is in an abnormal communication state, obtain the new control area for each door.

[0100] It should be noted that an optional method for obtaining the new control area of ​​each door can be found in A1 to A3 of the above embodiments.

[0101] Alternatively, another method for obtaining the new control area for each door includes:

[0102] B1. Obtain the control region set, which includes all original control regions of all controlled objects. That is, all original control regions in the original region partitioning result.

[0103] B2. Construct the connected regions of each original control region in the set of covered control regions.

[0104] In this embodiment, the method for constructing the connected region of each original control region in the control region set includes obtaining the farthest distance between each original control region and the vehicle center, and constructing a circular connected region with the farthest distance as the radius and the vehicle center as the center. This circular connected region satisfies the requirement of covering each original control region in the control region set.

[0105] B3. Based on the connected regions corresponding to the control region set, obtain a new control region for the control object.

[0106] Specifically, the connected regions corresponding to the control region set are used as the new control region for each door. That is, in the region repartition result, each door corresponds to the same new control region.

[0107] Figure 6 An example is shown in the diagram of the region re-partitioning result, such as... Figure 6As shown, the original control area includes region 1, region 2, and region 3. The farthest point of region 1 from the vehicle center point O is A, and the distance from A to OA is d1. The farthest point of region 2 from the vehicle center point O is B, and the distance from OB to OB is d2. The farthest point of region 3 from the vehicle center point O is C, and the distance from OC to OC is d3, where d1 = d2 > d3. Therefore, d1 is the farthest distance between the original control area and the vehicle center point. Using the farthest distance as the radius and the vehicle center point as the circumference, a circular connected region is constructed. Optionally, this circular connected region can be used as the new control area for each door, or the region obtained after removing the vehicle interior area from the circular connected region can be used as the new control area for each door.

[0108] like Figure 6 As shown, the circular connected region is centered at the vehicle's center point O and has a radius of d1. The expanded region includes region 1, region 2, region 3, and the shaded region.

[0109] S509: Select the door corresponding to the new control area where the Bluetooth key is located as the target door.

[0110] Continuing from the previous example, the new control area for each door is a circular connected area. If the location of the Bluetooth key is within a circular connected area, then each door will be considered as the target door.

[0111] S510: Issue a door control command to the target door to cause the target door to enter a triggerable unlocking / locking state.

[0112] S511. Receive the unlock signal of the door to be unlocked and determine whether the door to be unlocked is in a triggerable unlocking / locking state.

[0113] S512, If so, issue an unlock command for the door to be unlocked.

[0114] As can be seen from the above technical solution, the Bluetooth antenna pairing status is monitored by the Bluetooth key master controller, and the switching between redundant mode and normal mode is realized, thereby ensuring the reliability of Bluetooth key locking and unlocking in special interference scenarios (such as non-open areas in parking lots).

[0115] Specifically, when the Bluetooth antennas are all in normal communication mode, the target door is determined based on the location of the Bluetooth key and the original control area of ​​each door, and a door control command is issued to the target door so that the target door enters a triggerable unlocking / locking state. Because the pre-configured original control area of ​​each door has a high degree of precision, fine-grained control of door unlocking / locking is achieved under normal conditions, ensuring the convenience and security of door unlocking / locking control.

[0116] If at least one Bluetooth antenna is in an abnormal state, the system acquires the area re-division results, determines the new control area to which the Bluetooth key belongs and the target door, and issues a door control command to the target door to enable it to enter a triggerable unlocking / locking state. Thus, even when the Bluetooth antenna communication is abnormal, the system can control the door's unlocking / locking based on the Bluetooth key's location and the new control area of ​​the door, improving the flexibility and accuracy of the digital key controller's door unlocking / locking control, thereby enhancing the user experience.

[0117] Furthermore, based on the Bluetooth pairing signals and CAN communication signals sent by each Bluetooth antenna, it is determined whether the communication status of each Bluetooth antenna is in an abnormal state, improving the accuracy of the judgment result of the communication status, further improving the reliability of the door control, and reducing the safety risks of the door control in the redundant mode.

[0118] Figure 7 This paper shows a schematic diagram of the structure of a control area acquisition device provided in an embodiment of this application, as shown below. Figure 7 As shown, the device may include:

[0119] The status detection unit 701 is used to acquire the communication status of the digital key antenna;

[0120] The control area update unit 702 is used to obtain a new control area of ​​the controlled object if the communication status of at least one of the digital key antennas is in an abnormal state. The new control area of ​​the controlled object overlaps with the original control area of ​​the controlled object, and the new control area of ​​the controlled object is larger than the original control area of ​​the controlled object.

[0121] Optionally, when the status detection unit is used to obtain the communication status of the digital key antenna, it is specifically used for:

[0122] The system acquires the digital pairing signal transmitted by the digital key antenna and determines whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal; it acquires the Controller Area Network (CAN) communication signal transmitted by the digital key antenna and determines whether the CAN communication of the digital key antenna is in a CAN communication failure state based on the CAN communication signal; if the digital key antenna satisfies at least one of being in a CAN communication failure state or a Bluetooth communication failure state, then it is determined that the communication state of the digital key antenna is in an abnormal state.

[0123] Optionally, when the status detection unit determines whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal, it specifically performs the following:

[0124] If no digital pairing signal is received from any of the digital key antennas within a preset first time period, or if the received Bluetooth pairing signal from the digital key antenna does not meet the preset first pairing condition, the digital key antenna is determined to be in a Bluetooth communication failure state.

[0125] Optionally, when the status detection unit determines whether the CAN communication of the digital key antenna is in a CAN communication failure state based on the CAN communication signal, it specifically performs the following:

[0126] If no CAN communication signal is received from the digital key antenna within the preset second time period, or if the received CAN communication signal from the digital key antenna does not meet the preset second pairing condition, the digital key antenna is determined to be in a CAN communication failure state.

[0127] Optionally, the control area acquisition device further includes: a control unit for determining the location of a digital key based on the digital signals transmitted by each of the digital key antennas; designating the control object corresponding to the new control area to which the location of the digital key belongs as a target control object; and issuing a control command to the target control object.

[0128] Optionally, when the control region update unit is used to obtain a new control region for a controlled object, it is specifically used for:

[0129] Obtain the target original control region set of the controlled object, the target original control region set including at least one set of target original control regions, the target original control regions including multiple original control regions; for the target original control regions, construct a connected region covering each original control region in the target original control regions; based on the connected region corresponding to the target original control regions, obtain a new control region of the controlled object.

[0130] Optionally, when the control region update unit is used to obtain a new control region for a controlled object, it is specifically used for:

[0131] Obtain a set of control regions, which includes all original control regions of all controlled objects; construct a connected region covering each original control region in the set of control regions; and obtain a new control region for the controlled object based on the connected region corresponding to the set of control regions.

[0132] This application also provides a control area acquisition device. Figure 8 A schematic diagram of the control area acquisition device is shown. The device may include: at least one processor 801, at least one communication interface 802, at least one memory 803, and at least one communication bus 804.

[0133] In this embodiment, the number of processor 801, communication interface 802, memory 803, and communication bus 804 is at least one, and processor 801, communication interface 802, and memory 803 communicate with each other through communication bus 804.

[0134] The processor 801 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present invention.

[0135] The memory 803 may include high-speed RAM, or it may also include non-volatile memory, such as at least one disk storage device;

[0136] The memory stores a program, and the processor can execute the program stored in the memory to implement the various steps of the control area acquisition method provided in this application embodiment. The control area acquisition method is applied to a digital key controller, as follows:

[0137] Obtain the communication status of the digital key antenna; if at least one of the digital key antennas is in an abnormal communication state, obtain the new control area of ​​the controlled object, wherein the new control area of ​​the controlled object overlaps with the original control area of ​​the controlled object, and the new control area of ​​the controlled object is larger than the original control area of ​​the controlled object.

[0138] Optionally, obtaining the communication status of the digital key antenna includes: obtaining a digital pairing signal transmitted by the digital key antenna, and determining whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal; obtaining a Controller Area Network (CAN) communication signal transmitted by the digital key antenna, and determining whether the CAN communication of the digital key antenna is in a CAN communication failure state based on the CAN communication signal; if the digital key antenna satisfies at least one of being in a CAN communication failure state or a Bluetooth communication failure state, then the communication status of the digital key antenna is determined to be in an abnormal state.

[0139] Optionally, determining whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal includes:

[0140] If no digital pairing signal is received from any of the digital key antennas within a preset first time period, or if the received Bluetooth pairing signal from the digital key antenna does not meet the preset first pairing condition, the digital key antenna is determined to be in a Bluetooth communication failure state.

[0141] Optionally, determining whether the CAN communication of the digital key antenna is in a CAN communication failure state based on the CAN communication signal includes:

[0142] If no CAN communication signal is received from the digital key antenna within the preset second time period, or if the received CAN communication signal from the digital key antenna does not meet the preset second pairing condition, the digital key antenna is determined to be in a CAN communication failure state.

[0143] Optionally, the method for obtaining the control region also includes:

[0144] The location of the digital key is determined based on the digital signals transmitted by each of the digital key antennas; the control object corresponding to the new control area to which the location of the digital key belongs is taken as the target control object; and control commands are issued to the target control object.

[0145] Optionally, obtaining a new control region for the controlled object includes:

[0146] Obtain the target original control region set of the controlled object, the target original control region set including at least one set of target original control regions, the target original control regions including multiple original control regions; for the target original control regions, construct a connected region covering each original control region in the target original control regions; based on the connected region corresponding to the target original control regions, obtain a new control region of the controlled object.

[0147] Optionally, obtaining a new control region for the controlled object includes:

[0148] Obtain a set of control regions, which includes all original control regions of all controlled objects; construct a connected region covering each original control region in the set of control regions; and obtain a new control region for the controlled object based on the connected region corresponding to the set of control regions.

[0149] This application embodiment also provides a readable storage medium that can store a computer program suitable for processor execution. When the computer program is executed by the processor, it implements the various steps of a control region acquisition method provided in this application embodiment. The control region acquisition method is applied to a digital key controller, as follows:

[0150] Obtain the communication status of the digital key antenna; if at least one of the digital key antennas is in an abnormal communication state, obtain the new control area of ​​the controlled object, wherein the new control area of ​​the controlled object overlaps with the original control area of ​​the controlled object, and the new control area of ​​the controlled object is larger than the original control area of ​​the controlled object.

[0151] Optionally, obtaining the communication status of the digital key antenna includes: obtaining a digital pairing signal transmitted by the digital key antenna, and determining whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal; obtaining a Controller Area Network (CAN) communication signal transmitted by the digital key antenna, and determining whether the CAN communication of the digital key antenna is in a CAN communication failure state based on the CAN communication signal; if the digital key antenna satisfies at least one of being in a CAN communication failure state or a Bluetooth communication failure state, then the communication status of the digital key antenna is determined to be in an abnormal state.

[0152] Optionally, determining whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal includes:

[0153] If no digital pairing signal is received from any of the digital key antennas within a preset first time period, or if the received Bluetooth pairing signal from the digital key antenna does not meet the preset first pairing condition, the digital key antenna is determined to be in a Bluetooth communication failure state.

[0154] Optionally, determining whether the CAN communication of the digital key antenna is in a CAN communication failure state based on the CAN communication signal includes:

[0155] If no CAN communication signal is received from the digital key antenna within the preset second time period, or if the received CAN communication signal from the digital key antenna does not meet the preset second pairing condition, the digital key antenna is determined to be in a CAN communication failure state.

[0156] Optionally, the method for obtaining the control region also includes:

[0157] The location of the digital key is determined based on the digital signals transmitted by each of the digital key antennas; the control object corresponding to the new control area to which the location of the digital key belongs is taken as the target control object; and control commands are issued to the target control object.

[0158] Optionally, obtaining a new control region for the controlled object includes:

[0159] Obtain the target original control region set of the controlled object, the target original control region set including at least one set of target original control regions, the target original control regions including multiple original control regions; for the target original control regions, construct a connected region covering each original control region in the target original control regions; based on the connected region corresponding to the target original control regions, obtain a new control region of the controlled object.

[0160] Optionally, obtaining a new control region for the controlled object includes:

[0161] Obtain a set of control regions, which includes all original control regions of all controlled objects; construct a connected region covering each original control region in the set of control regions; and obtain a new control region for the controlled object based on the connected region corresponding to the set of control regions.

[0162] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 said element.

[0163] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0164] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for obtaining a control region, characterized in that, Applied to digital key controllers, the method for obtaining the control area includes: Obtain the communication status of the digital key antenna; If at least one of the digital key antennas is in an abnormal communication state, a new control area of ​​the controlled object is obtained. The new control area of ​​the controlled object overlaps with the original control area of ​​the controlled object, and the new control area of ​​the controlled object is larger than the original control area of ​​the controlled object. The acquisition of the new control area of ​​the controlled object includes: Obtain the target original control region set of the controlled object, the target original control region set includes at least one set of target original control regions, and the target original control regions include multiple original control regions; for each target original control region, construct a connected region covering each original control region in the target original control region; based on the connected region corresponding to the target original control region, obtain a new control region of the controlled object; Alternatively, obtain a set of control regions, which includes all original control regions of all controlled objects; construct a connected region covering each original control region in the set of control regions; and obtain a new control region of the controlled object based on the connected region corresponding to the set of control regions.

2. The control region acquisition method according to claim 1, characterized in that, The acquisition of the communication status of the digital key antenna includes: Acquire the digital pairing signal transmitted by the digital key antenna, and determine whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal; The controller local area network (CAN) communication signal transmitted by the digital key antenna is obtained, and the CAN communication signal is used to determine whether the CAN communication of the digital key antenna is in a CAN communication failure state. If the digital key antenna satisfies at least one of the following conditions: it is in a CAN communication failure state or a Bluetooth communication failure state, then the communication state of the digital key antenna is determined to be abnormal.

3. The control region acquisition method according to claim 2, characterized in that, The step of determining whether the digital communication of the digital key antenna is in a digital communication failure state based on the digital pairing signal includes: If no digital pairing signal is received from any of the digital key antennas within a preset first time period, or if the received Bluetooth pairing signal from the digital key antenna does not meet the preset first pairing condition, the digital key antenna is determined to be in a Bluetooth communication failure state.

4. The control region acquisition method according to claim 2, characterized in that, The step of determining whether the CAN communication of the digital key antenna is in a CAN communication failure state based on the CAN communication signal includes: If no CAN communication signal is received from the digital key antenna within the preset second time period, or if the received CAN communication signal from the digital key antenna does not meet the preset second pairing condition, the digital key antenna is determined to be in a CAN communication failure state.

5. The control region acquisition method according to claim 1, characterized in that, The method for obtaining the control region further includes: The position of the digital key is determined based on the digital signals transmitted by each of the digital key antennas; The control object corresponding to the new control area to which the location of the digital key belongs is taken as the target control object; Issue control commands to the target controlled object.

6. A control area acquisition device, characterized in that, include: The status detection unit is used to obtain the communication status of the digital key antenna; A control area update unit is used to obtain a new control area of ​​the controlled object if the communication status of at least one of the digital key antennas is in an abnormal state. The new control area of ​​the controlled object overlaps with the original control area of ​​the controlled object, and the new control area of ​​the controlled object is larger than the original control area of ​​the controlled object. Specifically, when the control region update unit obtains a new control region for a controlled object, it is used for: Obtain the target original control region set of the controlled object, the target original control region set includes at least one set of target original control regions, and the target original control regions include multiple original control regions; for each target original control region, construct a connected region covering each original control region in the target original control region; based on the connected region corresponding to the target original control region, obtain a new control region of the controlled object; Alternatively, obtain a set of control regions, which includes all original control regions of all controlled objects; construct a connected region covering each original control region in the set of control regions; and obtain a new control region of the controlled object based on the connected region corresponding to the set of control regions.

7. A control area acquisition device, characterized in that, include: Memory and processor; The memory is used to store programs; The processor is used to execute the program to implement each step of the control area acquisition method as described in any one of claims 1 to 5.

8. A readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements each step of the control region acquisition method as described in any one of claims 1 to 5.

Images