Intelligent vehicle body device, keyless entry system and vehicle

Abstract

The utility model relates to the technical field of vehicle control, and discloses a vehicle body intelligent device, a keyless entry system and a vehicle, the vehicle body intelligent device comprises a first processor, a communication change-over switch and at least three first antennas; one end of the communication change-over switch is connected with the first processor, and the other end of the communication change-over switch is connected with at least three first antennas; wherein the first processor is used for determining the position of the intelligent vehicle key based on the signals received by the at least three first antennas, and the positioning complexity and the cost of the vehicle body intelligent device are reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a vehicle body intelligent device, a keyless entry system and a vehicle. Background Art

[0002] With the rapid popularization of smart car technology, electronicization / intelligence has become the development trend of smart cars now and in the future, and the application of Passive Entry Passive Start (PEPS) is becoming more and more widespread. PEPS consists of a smart car key and a body smart device. The smart car key is carried by the vehicle owner or driver, and the body smart device is set on the vehicle. The smart car key and the body smart device communicate through wireless technology. When the vehicle owner carries the authorized smart car key into the PEPS recognition range, the body smart device can enable the vehicle to open the door automatically and release the anti-theft system.

[0003] At present, in order to determine whether the smart car key has entered the preset range, independent ranging is required between multiple auxiliary nodes (each auxiliary node requires an independent signal processing chip and corresponding antenna) set on the car body in the car body intelligent device, and then the main node locates the position of the smart car key.

[0004] The above-mentioned method of locating smart car keys requires multiple signal processing chips on the vehicle body intelligent device to cooperate with each other, and multiple signal processing chips need to communicate and coordinate processing to prevent signals between the antennas of the vehicle body from interfering with each other, which increases the complexity and cost of positioning processing. Utility Model Content

[0005] In view of this, the present application provides a vehicle body intelligent device, a keyless entry system and a vehicle to improve the complexity and high cost of positioning processing during vehicle control.

[0006] In a first aspect, the present application provides a vehicle body intelligent device, the vehicle body intelligent device comprising a first processor, a communication switch and at least three first antennas;

[0007] One end of the communication switch is connected to the first processor, and the other end of the communication switch is connected to at least three first antennas; wherein the first processor is used to determine the location of the smart car key based on signals received by the at least three first antennas.

[0008] The vehicle body intelligent device provided by this application enables the first processor to poll and turn on at least three first antennas by controlling the communication switching switch, so that the first processor can establish connections with the intelligent vehicle key through different first antennas in sequence, thereby obtaining the signals received from the intelligent vehicle key by at least three different first antennas, and determining the position of the intelligent vehicle key based on the signals received by the at least three first antennas. In this application, by setting the communication switching switch, the vehicle body intelligent device can complete the positioning of the intelligent vehicle key on the basis of a single signal processor, without the need for multiple signal processing chips to cooperate with each other, reducing the complexity of positioning and the cost of the vehicle body intelligent device.

[0009] In an alternative embodiment, the communication switching switch is a single-pole multi-throw switch. The single-pole multi-throw switch includes an input terminal, a switch handle, and at least three output terminals. The at least three output terminals correspond to the at least three first antennas one by one; the input terminal is connected to the first processor, the at least three output terminals are connected to the corresponding first antennas, one end of the switch handle is connected to the input terminal, and the other end of the switch handle is connected to the target output terminal, where the target output terminal is the output terminal corresponding to the first target antenna among the at least three output terminals, and the first target antenna is one of the at least three first antennas.

[0010] In this embodiment, only by adjusting the position of the switch handle can the switching of different first antennas be achieved, and the switching of multiple different first antennas can be realized through one switch, and the switching process is relatively stable.

[0011] In an alternative embodiment, the first processor and the communication switching switch are integrated on a processing chip.

[0012] In the embodiment, integrating the first processor and the communication switching switch on the same processing chip can reduce the complexity of the printed circuit board, reduce the wiring difficulty, can also shorten the signal transmission path, reduce the power consumption and delay during the signal transmission process, and improve the stability of the vehicle body intelligent device.

[0013] In an alternative embodiment, the first processor is integrated on a processing chip, and the communication switching switch is arranged outside the processing chip.

[0014] In this embodiment, setting the first processor and the communication switching switch independently can improve the flexibility of setting, and is convenient for replacement and heat dissipation control.

[0015] In an alternative embodiment, the vehicle body intelligent device further includes a controller, and the controller is communicatively connected to the first processor; the first processor is further configured to send a control instruction to the controller, and the controller is configured to control the vehicle to perform a target action based on the control instruction.

[0016] In an alternative embodiment, the first processor and the controller are connected through a controller area network bus.

[0017] In a second aspect, the present application provides a keyless entry system, which includes a smart vehicle key and a vehicle body intelligent device according to the first aspect or any corresponding embodiment thereof; the smart vehicle key includes a second processor and a second antenna, and the first processor and the second processor are communicatively connected through a first target antenna and the second antenna, and the second processor is configured to send a signal to the first processor.

[0018] In an optional embodiment, the smart vehicle key further includes a motion sensor; the motion sensor is connected to the second processor, and the motion sensor is configured to wake up the second processor when detecting user movement.

[0019] In an optional embodiment, the smart vehicle key is integrated on a terminal device.

[0020] In this embodiment, integrating the smart vehicle key on the terminal device can facilitate the vehicle owner or driver to carry the smart vehicle key.

[0021] In a third aspect, the present application provides a vehicle, which includes a vehicle body intelligent device according to the first aspect or any corresponding embodiment thereof, or includes a keyless entry system according to the second aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the related art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 is a schematic structural diagram of a keyless entry system according to an embodiment of the present application;

[0024] Figure 2 is a schematic structural diagram of a vehicle body intelligent device according to an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of a triangulation method according to an embodiment of the present application;

[0026] Figure 4 is a schematic structural diagram of a communication switching switch according to an embodiment of the present application;

[0027] Figure 5 is a schematic structural diagram of another communication switching switch according to an embodiment of the present application;

[0028] Figure 6It is a schematic structural diagram of another vehicle body intelligent device according to an embodiment of the present application;

[0029] Figure 7 It is a schematic structural diagram of another keyless entry system according to an embodiment of the present application;

[0030] Figure 8 It is a schematic flow diagram of the interaction process between the vehicle body intelligent device and the intelligent vehicle key according to an embodiment of the present application.

[0031] Reference numerals: 100, vehicle body intelligent device; 101, main node; 102, accessory node; 103, antenna; 110, first processor; 120, communication switch; 121, input end; 122, switch handle; 123, output end; 124, first switch; 130, first antenna; 140, controller; 200, intelligent vehicle key; 210, second processor; 220, second antenna; 230, motion sensor. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0033] Exemplarily, as Figure 1 shown, the PEPS based on Bluetooth Low Energy (BLE) includes a vehicle body intelligent device 100 and an intelligent vehicle key 200, and the vehicle body intelligent device 100 and the intelligent vehicle key 200 are communicatively connected. The vehicle body intelligent device 100 includes a BLE main node 101, a plurality of BLE accessory nodes 102 and a plurality of antennas 103, and the plurality of antennas 103 and the plurality of BLE accessory nodes 102 are in one-to-one correspondence. Among them, a node may refer to a signal processing chip with communication and ranging functions.

[0034] After the BLE master node 101 detects the intelligent vehicle key 200, it actively wakes up multiple BLE slave nodes 102. Then, the multiple BLE slave nodes 102 interact with the intelligent vehicle key 200 to obtain the Received Signal Strength Indication (RSSI) of the signal sent by the intelligent vehicle key 200, and send the RSSI value to the BLE master node 101. After the BLE master node 101 receives the RSSI values sent by the multiple BLE slave nodes 102, it estimates the position of the intelligent vehicle key based on the RSSI values of different BLE slave nodes 102. When the position of the intelligent vehicle key is within a preset range, the BLE master node 101, in combination with the user's operation, controls the vehicle to perform a target action (such as opening the door, starting the engine, or other operations).

[0035] Specifically, the preset range can be configured by designers according to requirements. For example, the preset range can be a circular area centered on the center of the first signal processing device with a preset length as the radius.

[0036] The above method for positioning the intelligent vehicle key requires multiple signal processing chips on the vehicle body intelligent device to cooperate with each other, and communication and collaborative processing are required between the multiple signal processing chips to prevent signal interference between the vehicle body antennas, increasing the complexity and cost of the positioning process.

[0037] In view of this, the present application provides a vehicle body intelligent device. By setting a communication switching switch, the vehicle body intelligent device can complete the positioning of the intelligent vehicle key based on a single signal processor, without the need for multiple signal processing chips to cooperate with each other, reducing the complexity of the positioning and the cost of the vehicle body intelligent device.

[0038] The vehicle body intelligent device provided by the present application will be described in detail below with reference to the accompanying drawings.

[0039] As Figure 2 shown, the vehicle body intelligent device 100 includes a first processor 110, a communication switching switch 120, and at least three first antennas 130.

[0040] Among them, one end of the communication switching switch 120 is connected to the first processor 110, and the other end of the communication switching switch 120 is connected to at least three first antennas 130. The at least three first antennas 130 can be arranged at different positions on the vehicle body main body. For example, the first antenna 130 can be arranged at positions such as the front headlight, the rear taillight, or the roof. The number of the first antennas can be determined by designers according to actual requirements. For example, the number of the first antennas 130 can be 4, 5, or 6, etc.

[0041] The first processor 110 is used to generate a switching instruction, and the communication switching switch 120 is used to switch the first antenna in the open state to the first target antenna based on the switching instruction, so that the first processor 110 communicates with the intelligent vehicle key through the first target antenna.

[0042] The first target antenna is the first antenna among at least three first antennas 130 that the first processor 110 determines needs to be opened currently, and the switching instruction includes the identifier of the first target antenna. For example, before the communication switching switch 120 receives the switching instruction, the second first antenna is in the open state. After the communication switching switch 120 receives the switching instruction indicating that the sixth first antenna is to be opened, the first target antenna is updated to the sixth first antenna. The communication switching switch 120 closes the second first antenna and opens the sixth first antenna, switching the first antenna in the open state to the sixth first antenna; afterwards, if the communication switching switch 120 receives the switching instruction indicating that the fifth first antenna is to be opened again, the first target antenna is updated to the fifth first antenna. The communication switching switch 120 closes the sixth first antenna and opens the fifth first antenna, switching the first antenna in the open state to the fifth first antenna.

[0043] Exemplarily, the switching instruction can be a pulse signal.

[0044] Specifically, after the first processor 110 and the intelligent vehicle key are communicatively connected, the first processor 110 can interact signals with the intelligent vehicle key through the first target antenna. For example, the first processor 110 sends signals to the intelligent vehicle key and receives signals from the intelligent vehicle key. After the first processor 110 obtains the signals received by at least three different first antennas, it can determine the position of the intelligent vehicle key based on the signals received by the at least three first antennas.

[0045] Among them, determining the position of the intelligent vehicle key based on the signals received by at least three first antennas is a commonly used positioning method in the art. A specific example is used below to briefly describe the method for determining the position of the intelligent vehicle key.

[0046] In one example, to determine the position of the intelligent vehicle key based on the signals received by three first antennas, the first processor 110 is pre-configured with a first correspondence relationship, which is used to reflect the relationship between RSSI and distance and can be determined through testing. After the first processor 110 receives the signals, it can determine the distances between the three first antennas and the intelligent vehicle key 200 respectively based on the RSSI of the signals received by the three first antennas and the first correspondence relationship.

[0047] After determining the distances between the three first antennas and the intelligent vehicle key 200, as Figure 3 shown, A, B, and C represent three first antennas, and R aIndicates the distance between A and the intelligent car key, R b Indicates the distance between B and the intelligent car key, R c Indicates the distance between C and the intelligent car key. Based on the distance between A and the intelligent car key, it can be determined that the intelligent car key is located on the circumference with A as the center and R a as the radius. Based on the distance between B and the intelligent car key, it can be determined that the intelligent car key is located on the circumference with B as the center and R b as the radius. Based on the distance between C and the intelligent car key, it can be determined that the intelligent car key is located on the circumference with C as the center and R c as the radius. At this time, combining the estimation results of A and B, it can be determined that the intelligent car key is located at the intersection of circle A and circle B, that is, at E or F. Then, combining the estimation result of C, it can be determined that the intelligent car key is in an area where the three circles overlap. For example, the position of point D is the position of the intelligent car key.

[0048] Exemplarily, the first processor 110 can be a chip with communication and ranging functions. For example, the first processor 110 can be a microcontroller unit (MCU) or other chips.

[0049] For the vehicle body intelligent device provided in this application, the first processor 110 polls and turns on at least three first antennas by controlling the communication switch 120, so that the first processor 110 establishes connections with the intelligent car key through different first antennas 130 in sequence, thereby obtaining signals received by the at least three different first antennas 130 from the intelligent car key, and determining the position of the intelligent car key based on the signals received by the at least three first antennas. In this application, by setting the communication switch 120, the vehicle body intelligent device can complete the positioning of the intelligent car key on the basis of a single signal processor, without the need for multiple signal processing chips to cooperate with each other, reducing the complexity of positioning and the cost of the vehicle body intelligent device.

[0050] This application does not limit the specific structure of the communication switch 120, as long as it can turn on the first target antenna according to the switching instruction. The following is an example of the specific structure of the communication switch 120.

[0051] In some alternative embodiments, as Figure 4 shown, the communication switch 120 is a single-pole multi-throw switch. The single-pole multi-throw switch includes an input terminal 121, a switch handle 122, and at least three output terminals 123. The at least three output terminals 123 correspond to the at least three first antennas one by one.

[0052] Among them, the input end 121 is connected to the first processor 110, at least three output ends 123 are connected to corresponding first antennas, one end of the switch handle 122 is connected to the input end 121, and the other end of the switch handle 122 is connected to the target output end, where the target output end is the output end corresponding to the first target antenna among the N output ends.

[0053] For example, if the switching instruction of the first processor 110 indicates to turn on the nth first antenna, the first target antenna is the nth first antenna, and the target output end is the output end connected to the nth first antenna among at least three output ends 123. Among them, n is an integer greater than or equal to 1, and the duration for which the nth first antenna is in the on state can be a preset time period, and the preset time period can be determined by the designer. For example, the duration of the preset time period can be 1 ms, 2 ms, or 5 ms, etc. Within the preset time period, the first processor 110 can send a data signal with a duration of the preset time period through the nth first antenna.

[0054] In this embodiment, only by adjusting the position of the switch handle 122 can the switching of different first antennas 130 be realized, and the switching of multiple different first antennas 130 can be achieved through one switch, and the switching process is relatively stable.

[0055] In this embodiment, compared with the mechanism in which all antennas receive the key signal together, the single-pole multi-throw switch has a simple structure and is easy to implement. This not only reduces the complexity of the hardware design, but also reduces the possible fault points, improving the reliability and durability of the system. Since the single-pole multi-throw switch is relatively simple and easy to manufacture, the hardware cost can be effectively reduced. In addition, the use of the single-pole multi-throw switch reduces the length of the circuit connecting the antenna and the first processor, thereby further reducing the cost of the overall device.

[0056] In some other alternative embodiments, as Figure 5 shown, the communication switching switch 120 includes at least three first switches 124, and at least three first switches 124 correspond to at least three first antennas 130 one by one. Among them, one end of at least three first switches 124 is connected to the first processor 110, and the other end of at least three first switches 124 is respectively connected to the corresponding first antenna 130.

[0057] Specifically, the first switch 124 corresponding to the target antenna among at least three first switches 124 is in the conducting state, and the first switches 124 other than the first switch 124 corresponding to the first target antenna among at least three first switches 124 are all in the off state.

[0058] In this embodiment, the switching of multiple different first antennas 130 is realized through multiple first switches 124, and the damaged switch can be replaced separately, with a relatively low cost.

[0059] This application does not limit the specific installation positions of the first processor 110 and the communication switch 120. The first processor 110 and the communication switch 120 can be integrated on the same processing chip, or the first processor 110 and the communication switch 120 can be independently installed. For example, the first processor 110 is integrated on the processing chip, and the communication switch 120 is installed outside the processing chip.

[0060] In the embodiment, integrating the first processor 110 and the communication switch 120 on the same processing chip can reduce the complexity of the printed circuit board (PCB), reduce the wiring difficulty, shorten the signal transmission path, reduce the power consumption and delay during signal transmission, and improve the stability of the vehicle body intelligent device 100. Independently installing the first processor 110 and the communication switch 120 can improve the flexibility of installation and facilitate the replacement and control of heat dissipation.

[0061] Exemplarily, as Figure 6 shown, the vehicle body intelligent device 100 further includes a controller 140, and the controller 140 is communicatively connected to the first processor 110.

[0062] Among them, the first processor 110 is further configured to send a control instruction to the controller 140, and the controller 140 is configured to control the vehicle to perform a target action based on the control instruction.

[0063] Specifically, after determining the position of the intelligent vehicle key, when the position of the intelligent vehicle key is within a preset range, the first processor 110 sends a control instruction to the controller 140, and the controller 140 controls the vehicle to perform a target action based on the control instruction. The control instruction is used to instruct the vehicle to perform a target action.

[0064] Exemplarily, the control instruction can be a pulse signal, and the target action can be actions such as opening the vehicle door, starting the engine, adjusting the seat position, adjusting the rearview mirror position, and playing music.

[0065] Exemplarily, the controller 140 refers to a vehicle controller. For example, the controller 140 can be an electronic control unit (ECU) or a body control module (BCM), etc.

[0066] Exemplarily, the first processor 110 and the controller 140 are connected through a controller area network (CAN) bus.

[0067] Specifically, the CAN bus uses differential signal transmission, has strong anti-interference ability, and the CAN bus supports an error detection mechanism, which can detect and handle transmission errors, improving the accuracy of signal transmission between the first processor 110 and the controller 140.

[0068] This application also provides a keyless entry system. As Figure 7 shown, the keyless entry system includes a smart vehicle key 200 and the vehicle body intelligent device 100 of any of the above embodiments. The smart vehicle key 200 includes a second processor 210 and a second antenna 220. The second processor 210 is connected to the second antenna 220, and communication connection is achieved between the second processor 210 and the first processor 110 through an antenna (the first target antenna and the second antenna 220).

[0069] In some optional embodiments, as Figure 7 shown, the smart vehicle key 200 further includes a motion sensor 230. The motion sensor 230 is connected to the second processor 210, and the motion sensor 230 is used to wake up the second processor 210 when detecting user movement.

[0070] Exemplarily, the smart vehicle key 200 is integrated on a terminal device, facilitating the vehicle owner or driver to carry the smart vehicle key 200. The terminal device can be a smart phone, a smart watch, or other portable devices integrated with a processor and an antenna.

[0071] The following takes an example to illustrate the specific process of the interaction between the vehicle body intelligent device 100 and the smart vehicle key 200 in the keyless entry system to control the vehicle to perform a target action.

[0072] As Figure 8 shown, first, the vehicle body intelligent device 100 determines a second target antenna based on the deployment positions of N first antennas on the vehicle. Then, the vehicle body intelligent device 100 controls the second target antenna to be in an open state, enabling the vehicle body intelligent device 100 to connect to the smart vehicle key 200 through the second target antenna. After that, the vehicle body intelligent device sends a scanning signal to the smart vehicle key at preset time intervals. If the vehicle owner carrying the authorized smart vehicle key 200 moves, the smart vehicle key is woken up, can receive the scanning signal from the vehicle body intelligent device, and send a scanning response signal to the vehicle body intelligent device, establishing a connection between the smart vehicle key and the vehicle body intelligent device, that is, performing step S801, step S802, step S803, and step S804. Among them, N is an integer greater than or equal to 3, and the preset time interval is configured by designers according to experience. For example, the preset time interval can be 1 s, 2 s, or 5 s, etc.

[0073] After that, the intelligent vehicle key sends authentication information to the vehicle body intelligent device. After receiving the authentication information, the vehicle body intelligent device can determine whether the intelligent vehicle key is legal based on the authentication information, that is, execute step S805 and step S806. When the vehicle body intelligent device determines that the intelligent vehicle key is illegal, it re-executes step S803.

[0074] When the vehicle body intelligent device determines that the intelligent vehicle key is legal, it determines M first antennas from N first antennas. Then, the vehicle body intelligent device controls the i-th first target antenna to be in an open state, and sends a first test signal to the intelligent vehicle key through the i-th first target antenna. The intelligent vehicle key receives the first test signal and sends a first test response signal to the vehicle body intelligent device, that is, execute step S807, step S808 and step S809. Wherein, i = M, M is an integer greater than or equal to 3 and less than or equal to N.

[0075] After receiving the first test response signal, the vehicle body intelligent device executes step S810, updates i to i - 1, and then re-executes step S808 until i = 0, that is, until the vehicle body intelligent device receives M first test response signals.

[0076] After the vehicle body intelligent device receives M first test response signals, it determines the position of the intelligent vehicle key based on the M first test response signals, that is, execute step S811. After determining the position of the intelligent vehicle key, the vehicle body intelligent device determines whether the position of the intelligent vehicle key is within a preset range, that is, execute step S812. At the same time, the intelligent vehicle key sends execution information to the first signal processing module, that is, execute step S813.

[0077] After receiving the execution information, if the position of the intelligent vehicle key is within the preset range, the vehicle body intelligent device controls the vehicle to execute the target action according to the execution information, that is, execute step S814; if the position of the intelligent vehicle key is outside the preset range, it re-executes step S807.

[0078] This application also provides a vehicle, which includes the keyless entry system provided in any of the above embodiments.

[0079] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0080] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0081] It should be understood that each part of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following well-known technologies in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application-specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0082] In the description of this specification, the descriptions referring to the terms "this embodiment", "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0083] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0084] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations fall within the scope defined by the present application.

Claims

1. An intelligent vehicle body device, characterized in that, The vehicle body intelligent device includes a first processor, a communication switch, and at least three first antennas; One end of the communication switch is connected to the first processor, and the other end of the communication switch is connected to the at least three first antennas; wherein, the first processor is configured to determine the position of the intelligent vehicle key based on the signals received by the at least three first antennas.

2. The vehicle body intelligent device according to claim 1, wherein The communication switch is a single-pole multi-throw switch, and the single-pole multi-throw switch includes an input terminal, a switch handle, and at least three output terminals, and the at least three output terminals correspond to the at least three first antennas one by one; The input terminal is connected to the first processor, the at least three output terminals are connected to the corresponding first antennas, one end of the switch handle is connected to the input terminal, and the other end of the switch handle is connected to a target output terminal, wherein the target output terminal is the output terminal corresponding to a first target antenna among the at least three output terminals, and the first target antenna is one of the at least three first antennas.

3. The body intelligent device according to claim 1 or 2, characterized in that, The first processor and the communication switch are integrated on a processing chip.

4. The vehicle body intelligent device according to claim 1 or 2, characterized in that, The first processor is integrated on a processing chip, and the communication switch is disposed outside the processing chip.

5. The vehicle body intelligent device according to claim 1 or 2, characterized in that The vehicle body intelligent device further includes a controller, and the controller is communicatively connected to the first processor; The first processor is further configured to send a control instruction to the controller, and the controller is configured to control the vehicle to perform a target action based on the control instruction.

6. The vehicle body intelligent device according to claim 5, characterized in that The first processor and the controller are connected through a controller area network bus.

7. A keyless entry system, characterized in that, The keyless entry system includes an intelligent vehicle key and the vehicle body intelligent device according to any one of claims 1 to 6; The intelligent vehicle key includes a second processor and a second antenna, and the first processor and the second processor are communicatively connected through the first target antenna and the second antenna, and the second processor is configured to send a signal to the first processor.

8. The keyless entry system according to claim 7, wherein The intelligent vehicle key further includes a motion sensor; The motion sensor is connected to the second processor, and the motion sensor is configured to wake up the second processor when detecting that the user moves.

9. The keyless entry system according to claim 7, wherein The intelligent vehicle key is integrated on a terminal device.

10. A vehicle, characterized in that, Comprising: The vehicle body intelligent device according to any one of claims 1 to 6 or the keyless entry system according to any one of claims 7 to 9.

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