Antenna position calibration device, method and vehicle

Abstract

The present disclosure relates to an antenna position calibration device, method and vehicle, and relates to the technical field of antenna calibration. The device comprises: a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected to the plurality of antennas through the power supply control circuit; the main controller is used to determine whether there are antennas with uncalibrated positions among the plurality of antennas, and when it is determined that there are antennas with uncalibrated positions among the plurality of antennas, the main controller controls the power supply control circuit to disconnect the connection with a designated antenna among the plurality of antennas, calibrates the position of a target antenna, wherein the target antenna is the designated antenna, or an antenna among the plurality of antennas that is in a powered state after the power supply control circuit is disconnected from the designated antenna, obtains the distance between the target antenna and other antennas according to the position of the target antenna, and calibrates the positions of other antennas according to the distance, wherein the other antennas are antennas other than the target antenna among the plurality of antennas.

Description

Technical Field

[0001] The present disclosure relates to the technical field of antenna calibration, and in particular, to an antenna position calibration device, method and vehicle. Background Art

[0002] With the continuous development of vehicle technology, antennas are widely used in vehicles. Antennas are used to receive signals sent by smart devices connected to the vehicle, and calculate the distance between the smart device and the vehicle based on the time difference of the received signal to control the vehicle.

[0003] When a vehicle leaves the factory, the position of the antenna on the vehicle needs to be calibrated in a specific calibration area. A positioning base station is set in the specific calibration area, and the position of all antennas on the vehicle is calibrated by the positioning base station. This antenna calibration method needs to be carried out in a specific calibration area, which is very easy to be restricted by the location, making the entire antenna calibration process very inconvenient and also causing the entire vehicle production line to be too long. Summary of the invention

[0004] In order to solve the above problems, the present disclosure provides an antenna position calibration device, method and vehicle.

[0005] In a first aspect, the present disclosure provides an antenna position calibration device, the device comprising: a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, the main controller being connected to the plurality of antennas through the power supply control circuit, the main controller being connected to the plurality of antennas; the main controller being used to determine whether there are antennas with uncalibrated positions among the plurality of antennas, and when it is determined that there are antennas with uncalibrated positions among the plurality of antennas, calibrating the position of a target antenna by controlling the power supply control circuit to disconnect from a designated antenna among the plurality of antennas, the target antenna being the designated antenna, or an antenna among the plurality of antennas that is in a powered state after the power supply control circuit is disconnected from the designated antenna; and obtaining the distance between the target antenna and other antennas according to the position of the target antenna, and calibrating the positions of the other antennas according to the distance, the other antennas being antennas among the plurality of antennas except the target antenna.

[0006] Optionally, the main controller is used to obtain calibration status signals of the multiple antennas, the calibration status signals are used to indicate whether the antennas have been calibrated, and determine whether there are antennas with uncalibrated positions among the multiple antennas based on the calibration status signals.

[0007] Optionally, the target antenna is an antenna among the multiple antennas that is in a powered state after the power supply control circuit is disconnected from the designated antenna, and the power supply control circuit includes a power saving controller and a normally closed power supply, the power saving controller is respectively connected to the main controller and the other antennas, and the normally closed power supply is connected to the target antenna; the main controller is used to control the power saving controller to disconnect from the designated antenna to determine the target antenna that is in a powered state and calibrate the position of the target antenna.

[0008] Optionally, the target antenna is the designated antenna, the power supply control circuit includes a normally closed power supply, the normally closed power supply is connected to the other antennas, and the main controller is connected to the target antenna; the main controller is used to disconnect from the target antenna to determine that the other antennas are in a powered state, calibrate a pending position for the other antennas, close the connection with the target antenna, and calibrate the position of the target antenna according to the pending position.

[0009] Optionally, the main controller is used to calibrate the positions of the other antennas in order from near to far.

[0010] Optionally, the device also includes a prompt device, which is connected to the main controller; the main controller is also used to re-determine whether there are antennas with uncalibrated positions among the multiple antennas after completing the position calibration of the other antennas, and when it is determined that there are antennas with uncalibrated positions among the multiple antennas, control the prompt device to issue a prompt message, and the prompt message is used to prompt that the antenna position calibration of the vehicle has failed.

[0011] In a second aspect, the present disclosure provides an antenna position calibration method, which is applied to an antenna position calibration device, the device comprising: a main controller, a power supply control circuit and multiple antennas arranged on a vehicle, the main controller being connected to the multiple antennas through the power supply control circuit, and the main controller being connected to the multiple antennas; the method comprising: determining whether there are antennas with uncalibrated positions among the multiple antennas; in the case of determining that there are antennas with uncalibrated positions among the multiple antennas, calibrating the position of a target antenna by controlling the power supply control circuit to disconnect from a designated antenna among the multiple antennas, the target antenna being the designated antenna, or an antenna that is in a powered state after the power supply control circuit is disconnected from the designated antenna among the multiple antennas; obtaining the distance between the target antenna and other antennas according to the position of the target antenna; and calibrating the positions of the other antennas according to the distance, the other antennas being antennas among the multiple antennas except the target antenna.

[0012] Optionally, determining whether there are antennas with uncalibrated positions among the multiple antennas includes: obtaining calibration status signals of the multiple antennas, the calibration status signals being used to characterize whether the antennas have been calibrated, and determining whether there are antennas with uncalibrated positions among the multiple antennas based on the calibration status signals.

[0013] Optionally, the target antenna is an antenna among the multiple antennas that is in a powered state after the power supply control circuit is disconnected from the designated antenna, the power supply control circuit includes a power saving controller and a normally closed power supply, the power saving controller is respectively connected to the main controller and the other antennas, and the normally closed power supply is connected to the target antenna; the method includes: controlling the power saving controller to disconnect from the designated antenna to determine the target antenna that is in a powered state; and calibrating the position of the target antenna.

[0014] Optionally, the target antenna is the designated antenna, the power supply control circuit includes a normally closed power supply, the normally closed power supply is connected to the other antennas, and the main controller is connected to the target antenna; the method includes: disconnecting the connection with the target antenna to determine that the other antennas are in a powered state; calibrating a pending position for the other antennas; closing the connection with the target antenna, and calibrating the position of the target antenna according to the pending position.

[0015] Optionally, calibrating the positions of the other antennas according to the distances includes: calibrating the positions of the other antennas in order of the distances from near to far.

[0016] Optionally, the method further includes: after completing the position calibration of the other antennas, re-determining whether there are antennas with uncalibrated positions among the multiple antennas; when it is determined that there are antennas with uncalibrated positions among the multiple antennas, controlling the prompt device to issue a prompt message, wherein the prompt message is used to prompt that the antenna position calibration of the vehicle has failed.

[0017] In a third aspect, the present disclosure provides a vehicle comprising the device described above.

[0018] Through the above technical scheme, the antenna position calibration device in the present disclosure includes a main controller, a power supply control circuit and multiple antennas arranged on a vehicle, the main controller is connected to the multiple antennas through the power supply control circuit, and the main controller is connected to the multiple antennas; the main controller is used to determine whether there are antennas with uncalibrated positions among the multiple antennas, and when it is determined that there are antennas with uncalibrated positions among the multiple antennas, the main controller controls the power supply control circuit to disconnect the connection with the designated antenna among the multiple antennas, calibrates the position of the target antenna, the target antenna is the designated antenna, or after the power supply control circuit is disconnected from the designated antenna, the antenna in the multiple antennas is in a powered state, and obtains the distance between the target antenna and other antennas according to the position of the target antenna, and calibrates the position of the other antennas according to the distance, the other antennas are antennas among the multiple antennas except the target antenna. In this way, when the main controller detects that there is an antenna with an uncalibrated position among multiple antennas, it will automatically calibrate the positions of all antennas, and calibrate the position of the target antenna by controlling the power supply control circuit to disconnect the connection with the specified antenna among the multiple antennas, and then calibrate the positions of the remaining antennas according to the distance between the target antenna and other antennas. Therefore, there is no need to calibrate in a specific calibration area, and it is not limited by the location, making the calibration process of the entire antenna position more convenient, and also shortening the vehicle production line.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 It is a structural schematic diagram of an antenna position calibration device provided by an embodiment of the present disclosure;

[0022] Figure 2 is a structural schematic diagram of another antenna position calibration device provided by an embodiment of the present disclosure;

[0023] Figure 3 is a structural schematic diagram of another antenna position calibration device provided by an embodiment of the present disclosure;

[0024] Figure 4 is a structural schematic diagram of another antenna position calibration device provided by an embodiment of the present disclosure;

[0025] Figure 5 is a structural schematic diagram of another antenna position calibration device provided by an embodiment of the present disclosure;

[0026] Figure 6 is a structural schematic diagram of another antenna position calibration device provided by an embodiment of the present disclosure;

[0027] Figure 7 It is a flowchart of an antenna position calibration method provided by an embodiment of the present disclosure;

[0028] Figure 8 is a flowchart of another antenna position calibration method provided by an embodiment of the present disclosure;

[0029] Fig. 9 is a flow chart of another antenna position calibration method provided by an embodiment of the present disclosure;

[0030] Fig.10 is a flowchart of another antenna position calibration method provided by an embodiment of the present disclosure;

[0031] Fig.11 It is a block diagram of a vehicle provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0033] First, the application scenario of the present disclosure is explained. The present disclosure is used in the scenario of calibrating the position of the antenna on the vehicle. In the prior art, when the vehicle leaves the factory, the position of the antenna on the vehicle needs to be calibrated in a specific calibration area. A positioning base station is set in the specific calibration area. The positioning base station will send a positioning signal. When the antenna receives the positioning signal, it will send a feedback signal. The distance is calculated according to the time difference between sending the positioning signal and receiving the feedback signal. The positioning base station determines the antenna closest to the base station based on the distance and calibrates the position of the antenna. When the vehicle antenna fails and the antenna is replaced, it is also necessary to recalibrate the position of the antenna on the vehicle with a handheld device, which has the function of a base station. However, the inventor found that the existing antenna position calibration method requires the vehicle to add a specific calibration area on the production line, and the vehicle needs to enter the calibration area to calibrate the antenna position. This antenna calibration method needs to be carried out in a specific calibration area, which is very easy to be restricted by the site, making the calibration process of the entire antenna very inconvenient, and also causing the production line of the entire vehicle to be too long. In order to solve the above problem, the main controller in the present disclosure calibrates the positions of all antennas by itself when detecting that there are antennas with uncalibrated positions among multiple antennas, and calibrates the position of the target antenna by controlling the power supply control circuit to disconnect the connection with the specified antenna among the multiple antennas, and then calibrates the positions of the remaining antennas according to the distance between the target antenna and other antennas. Therefore, there is no need to calibrate in a specific calibration area, and it is not limited by the location, making the calibration process of the entire antenna position more convenient, and also shortening the production line of the vehicle.

[0034] Figure 1 A schematic diagram of the structure of an antenna position calibration device provided in an embodiment of the present disclosure is shown in FIG. Figure 1 As shown, the device 100 includes: a main controller 101, a power supply control circuit 102 and multiple antennas 103 arranged on a vehicle. The main controller 101 is connected to the multiple antennas 103 through the power supply control circuit 102, and the main controller 101 is connected to the multiple antennas 103.

[0035] The main controller 101 is connected to multiple antennas 103 via a communication line, and the communication line is used for data transmission between the main controller 101 and the antennas 103. The communication between the main controller 101 and the multiple antennas 103 can be CAN (English: Controller Area Network, Chinese: Controller Area Network) communication, LIN (English: Local Interconnect Network, Chinese: Local Interconnect Network) communication or other communication methods. The antenna 103 can be a UWB (English: Ultra Wideband, Chinese: a carrier-free communication technology) antenna with a UWB positioning function, or a Bluetooth antenna with a Bluetooth positioning function. The part numbers and hardware and other characteristics of the multiple antennas 103 are the same.

[0036] The main controller 101 is used to determine whether there is an antenna 103 with an uncalibrated position among the multiple antennas 103. When it is determined that there is an antenna 103 with an uncalibrated position among the multiple antennas 103, the main controller 101 controls the power supply control circuit 102 to disconnect from a designated antenna among the multiple antennas 103, calibrates the position of a target antenna, where the target antenna is the designated antenna, or an antenna 103 that is in a powered state after the power supply control circuit 102 is disconnected from the designated antenna, obtains the distance between the target antenna and other antennas based on the position of the target antenna, and calibrates the position of the other antennas based on the distance, where the other antennas are antennas 103 other than the target antenna among the multiple antennas 103.

[0037] The target antenna may be one or more of the multiple antennas. The main controller 101 calibrating the position signal of the antenna 103 means that the main controller 101 writes the position information of the antenna 103 into the position signal carried by the antenna 103 .

[0038] Specifically, the main controller 101 is used to obtain calibration status signals of multiple antennas 103, where the calibration status signals are used to indicate whether the antennas have been calibrated, and to determine whether there are antennas 103 with uncalibrated positions among the multiple antennas 103 according to the calibration status signals.

[0039] Among them, the status signal is 0 or 1, and whether the antenna corresponding to the status signal has been calibrated can be pre-set. For example, when the calibration status signal is 0, it indicates that the antenna 103 has not been calibrated, and when the calibration status signal is 1, it indicates that the antenna 103 has been calibrated.

[0040] It should be noted that when the vehicle leaves the factory, the digits on the position signal bits of all antennas on the vehicle are all 0. The number of the position signal digits can be one or more digits. For example, if the number of the position signal digits is two, the position signals of all antennas on the vehicle when the vehicle leaves the factory are all 00. For ease of explanation, the following examples are all explained as if the number of the position signal digits is two and the position signals of all antennas are 00.

[0041] In this solution, the main controller 101 is used to calibrate the positions of the other antennas in order from near to far, and after the position calibration of all antennas is completed, the status signal will become a calibrated signal.

[0042] For example, if the status signal is 0 when the position signal is not calibrated, the calibration signal will become 1 after the calibration is completed.

[0043] Specifically, after the position signal of the target antenna is calibrated, the target antenna sends an antenna signal to other antennas. After the other antennas receive the antenna signal, a feedback signal is sent to the main controller 101. The main controller 101 calculates the distance between the other antennas and the target antenna based on the time difference between the feedback signal and the sent antenna signal, and calibrates the positions of the other antennas in order from near to far according to the distance.

[0044] Considering that there may be a certain delay in the antenna sending a signal to the main controller in practice, in order to more accurately calculate the distance between other antennas and the target antenna, the target antenna can periodically send an antenna signal to other antennas, and after the other antennas receive the antenna signal, they feed back the signal to the main controller 101. The main controller 101 calculates the first distance between the other antennas and the target antenna based on the time difference between the feedback signal and the time when the antenna signal is sent, and takes the average of multiple distance values ​​as the distance between the other antennas and the target antenna. In this way, the distance between the other antennas and the target antenna can be determined more accurately.

[0045] The main controller 101 calculates the distance between other antennas and the target antenna according to the TOF flight time algorithm. Specifically, the TOF flight time algorithm can refer to the relevant calculation method in the prior art, which will not be described in detail here.

[0046] For example, taking the case where there are four antennas on the vehicle, one target antenna, and the position signal of the target antenna being calibrated as 01, the antenna 103 closest to the target antenna is calibrated as 02, the antenna 103 farther from the target antenna is calibrated as 03, and the antenna 103 farthest from the target antenna is calibrated as 04.

[0047] In addition, if only some antennas 103 in the vehicle have not been calibrated, the main controller 101 will restore the position signals of all antennas 103 to factory settings before calibrating all antennas 103, that is, the position signals of all antennas 103 will become 00.

[0048] With the above device, when the main controller detects that there is an antenna with an uncalibrated position among multiple antennas, it automatically calibrates the position of all antennas, and calibrates the position of the target antenna by controlling the power supply control circuit to disconnect the connection with the specified antenna among the multiple antennas, and then calibrates the positions of the remaining antennas according to the distance between the target antenna and other antennas. Therefore, there is no need to calibrate in a specific calibration area, and it is not limited by the location, making the calibration process of the entire antenna position more convenient, and also shortening the vehicle production line.

[0049] The connection method between the power supply control circuit 102 and the multiple antennas 103 is described below. In this embodiment, the position of the target antenna can be calibrated by any of the following two connection methods:

[0050] Method 1: The target antenna is an antenna that is in a powered state after the power supply control circuit 102 is disconnected from the designated antenna. The power supply control circuit 102 includes a power saving controller and a normally closed power supply. The power saving controller is respectively connected to the main controller 101 and the other antennas, and the normally closed power supply is connected to the target antenna.

[0051] The normally closed power supply means that under normal conditions, the power supply is always in a closed state, that is, other antennas connected to the normally closed power supply are always in a powered state. The normally closed power supply may be a battery distributed throughout the vehicle.

[0052] Taking into account the wiring length of the overall main controller, in this solution, other antennas are connected to the normally closed power supply at their locations, which can effectively reduce the overall wiring length.

[0053] The main controller 101 is used to control the power-saving controller to disconnect from the designated antenna to determine the target antenna in a powered state, calibrate the position of the target antenna, obtain the distance between the target antenna and other antennas based on the position of the target antenna, and calibrate the positions of other antennas in order from near to far according to the distance. The other antennas are antennas 103 other than the target antenna among the multiple antennas 103.

[0054] Specifically, after the position of the target antenna is calibrated, the main controller will control the power saving controller to restore the power supply to the designated antenna, so as to calibrate the positions of other antennas according to the distance between the target antenna and other antennas.

[0055] If the main controller 101 detects that the status signal of the antenna 103 in the vehicle indicates that there is an antenna 103 in the vehicle whose position is not calibrated, then the position signal of the antenna 103 is determined to be 00.

[0056] For example, for the connection method in method 1, take the number of multiple antennas in the vehicle as four as an example, Figure 2 As shown in FIG. 1 , antenna A, antenna B, antenna C and antenna D are arranged in the vehicle, wherein antenna A, antenna B, antenna C and antenna D are arranged at the four corners of the vehicle respectively. In this example, the connection method of the power supply control circuit with the main controller and the four antennas can be as follows: Figure 3 As shown, the antenna A is connected to the normally closed power supply, and the other antennas (antenna B, antenna C and antenna D in the figure) are respectively connected to the power-saving controller, and the power-saving controller is connected to the main controller. The antenna A, antenna B, antenna C and antenna D are all connected to the main controller through a communication line, and the communication line is used for data transmission between all antennas and the main controller. First, the main controller determines whether there is an antenna with an uncalibrated position among the four antennas, and detects that none of the four antennas have a calibrated position. In this case, the main controller disconnects the antenna B, antenna C and antenna D by controlling the power-saving controller. That is, the power-saving controller will stop supplying power to antenna B, antenna C and antenna D, and then determine that antenna A is the target antenna. At this time, only antenna A is in working state in the vehicle, and the main controller calibrates the position signal of antenna A to 01. After the main controller calibrates the position signal of antenna A, it controls the power-saving controller to resume power supply to antenna B, antenna C and antenna D. At this time, the main controller has calibrated the position signal of antenna A, which means that the main controller has determined the position of antenna A. Antenna A sends a signal to the other three antennas. The main controller calculates the distance between antenna A and the other three antennas based on the arrival time of the signal. According to the distance information, the antenna closest to antenna A is antenna B. The main controller calibrates the position signal of antenna B to 02. The antenna farthest from antenna A is antenna C. The main controller calibrates the position signal of antenna C to 03. The antenna farthest from antenna A is antenna D. The main controller calibrates the position signal of antenna D to 04.

[0057] Mode 2: The target antenna is the designated antenna, the power supply control circuit 102 includes a normally closed power supply, the normally closed power supply is connected to the other antenna, and the main controller 101 is connected to the target antenna.

[0058] The main controller 101 is used to disconnect the connection with the target antenna to determine the other antenna that is in a powered state, calibrate the pending position for the other antenna, close the connection with the target antenna, calibrate the position of the target antenna according to the pending position, obtain the distance between the target antenna and the other antennas according to the position of the target antenna, and calibrate the positions of the other antennas in sequence according to the order of the distance from near to far. The other antenna is an antenna 103 other than the target antenna among the multiple antennas 103.

[0059] For example, for the connection method in method 2, Figure 2 The arrangement position of the antenna in the example is used as an example to illustrate. In this example, the connection method between the power supply control circuit and the main controller and the four antennas can be as follows: Figure 4 As shown, the antenna A is connected to the main controller, and the other antennas (antenna B, antenna C and antenna D in the figure) are respectively connected to the normally closed power supply. The antenna A, antenna B, antenna C and antenna D are all connected to the main controller through a communication line, and the communication line is used for data transmission between all antennas and the main controller. First, the main controller determines whether there is an antenna with an uncalibrated position among the four antennas, and detects that none of the four antennas have a calibrated position. In this case, the main controller disconnects from antenna A. That is, the main controller stops powering antenna A and determines that antenna A is the target antenna. At this time, antenna B, antenna C and antenna D in the vehicle are in working state. The main controller temporarily calibrates the position signals of antenna B, antenna C and antenna D to 05 (the position signal indicates that the position of the antenna is a pending position). After the main controller calibrates antenna B, antenna C and antenna D, it resumes power supply to antenna A. At this time, the main controller has calibrated the position signals of antenna B, antenna C and antenna D (pending position), indicating that only the position signal of antenna A among all antennas is 00. At this time, the main controller calibrates the position signal of antenna A to 01. After calibrating the position signal of antenna A (the main controller has determined the position of antenna A), antenna A sends a signal to the other three antennas. The main controller calculates the distance between antenna A and the other three antennas based on the arrival time of the signal. According to the distance information, the antenna closest to antenna A is antenna B. The main controller calibrates the position signal of antenna B to 02. The antenna farther away from antenna A is antenna C. The main controller calibrates the position signal of antenna C to 03. The antenna farthest from antenna A is antenna D. The main controller calibrates the position signal of antenna D to 04.

[0060] When there are multiple target antennas, calibrating the positions of other antennas according to the position of the target antenna can be calibrating the positions of other antennas according to one of the target antennas or calibrating the positions of other antennas according to multiple target antennas respectively, wherein each target antenna calibrates other antennas that are closer to itself, and the target antennas are multiple antennas that are not adjacent to each other on the vehicle.

[0061] For example, for the connection method in method 2, Figure 2 The arrangement position of the antenna in the example is used as an example to illustrate. In this example, the connection method between the power supply control circuit and the main controller and the four antennas can be as follows: Figure 5 As shown, the antenna A and antenna D are connected to the main controller respectively, and the antenna B and antenna C are connected to the normally closed power supply respectively. The antenna A, antenna B, antenna C and antenna D are all connected to the main controller through a communication line, and the communication line is used for data transmission between all antennas and the main controller. First, the main controller determines whether there is an antenna with an uncalibrated position among the four antennas, and detects that none of the four antennas have a calibrated position. In this case, the main controller disconnects the antenna A and antenna D. That is, the main controller stops powering the antenna A and antenna D, and determines that the antenna A and antenna D are the target antennas. At this time, only the antenna B and antenna C are in the working state in the vehicle. The main controller temporarily calibrates the position signal of the antenna B and antenna C to 05 (the position signal indicates that the position of the antenna is a pending position). After the main controller calibrates the antenna B and antenna C, the power supply to the antenna A is restored. At this time, the main controller has calibrated the position signals of the antenna B and antenna C (pending position), indicating that only the position signal of the antenna A is 00 among the antennas in the working state. At this time, the main controller calibrates the position signal of antenna A to 01. After calibrating the position signal of antenna A (the main controller has determined the position of antenna A), the power supply to antenna D is restored. At this time, the main controller has calibrated the position signals of antenna A, antenna B and antenna C (where antenna B and antenna D are to be determined). Currently, among all antennas, only the position signal of antenna D is 00. The main controller calibrates the position signal of antenna D to 04. Antenna A and antenna D send signals to other antennas. The main controller calculates the distance between antenna A and antenna D and other antennas based on the arrival time of the signal. According to the distance information, the antenna closer to antenna A is antenna B. The main controller calibrates the position signal of antenna B to 02. The antenna closer to antenna D is antenna C. The main controller calibrates the position signal of antenna C to 03.

[0062] like Figure 6 As shown, the device 100 further includes a prompting device 104 , and the prompting device 104 is connected to the main controller 101 .

[0063] The main controller 101 is also used to re-determine whether there is an antenna 103 with an uncalibrated position among the multiple antennas 103 after completing the position calibration of the other antennas. When it is determined that there is an antenna 103 with an uncalibrated position among the multiple antennas 103, the main controller 101 is used to control the prompt device 104 to issue a prompt message, and the prompt message is used to prompt that the antenna position calibration of the vehicle has failed.

[0064] The prompt device 104 may include a voice prompt device or a vehicle-mounted display screen, and when the position calibration of the antenna 103 of the vehicle fails, a prompt message is issued to remind the user to check the vehicle condition and correct it in time.

[0065] Specifically, after completing the position calibration of the other antennas, it is re-determined whether there is an antenna 103 with an uncalibrated position among the multiple antennas 103. At this time, if there is an antenna 103 with an uncalibrated position among the multiple antennas 103, it is determined that the antenna position calibration of the vehicle has failed, and the main controller 101 sends a prompt message through the prompt device 104 to remind the user.

[0066] For example, the prompt message may be “Vehicle antenna position calibration failed, please check in time”.

[0067] Considering the factor of saving resources, in this solution, only when the battery on the vehicle is powered on each time, the main controller 101 automatically detects whether there is an antenna 103 with an uncalibrated position in the vehicle. If there is an antenna 103 with an uncalibrated position in the vehicle, the position signals of all antennas 103 in the vehicle are calibrated according to the above device. After the calibration is completed, it is detected again whether there is an antenna 103 with an uncalibrated position in the vehicle. If there is an antenna 103 with an uncalibrated position in the vehicle, it is determined that the calibration has failed, and a prompt message is issued through the above prompt device 104.

[0068] With the above device, when the main controller detects that there is an antenna with an uncalibrated position among multiple antennas, it automatically calibrates the position of all antennas, and calibrates the position of the target antenna by controlling the power supply control circuit to disconnect the connection with the specified antenna among the multiple antennas, and then calibrates the positions of the remaining antennas according to the distance between the target antenna and other antennas. Therefore, there is no need to calibrate in a specific calibration area, and it is not limited by the location, making the calibration process of the entire antenna position more convenient, and also shortening the vehicle production line.

[0069] Figure 7 A flow chart of an antenna position calibration method provided by an embodiment of the present disclosure is applied to an antenna position calibration device, the device comprising: a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, the main controller is connected to the plurality of antennas through the power supply control circuit, and the main controller is connected to the plurality of antennas. Figure 7As shown, the method comprises the following steps:

[0070] S701: Determine whether there is an antenna with an uncalibrated position among the multiple antennas.

[0071] Among them, a plurality of calibration status signals of the antenna are obtained, the calibration status signals are used to indicate whether the position of the antenna has been calibrated, and whether there is an antenna with an uncalibrated position among the plurality of antennas is determined according to the calibration status signals.

[0072] S702. When it is determined that there is an antenna whose position is not calibrated among the multiple antennas, the position of the target antenna is calibrated by controlling the power supply control circuit to disconnect from the designated antenna among the multiple antennas. The target antenna is the designated antenna, or an antenna that is in a powered state after the power supply control circuit is disconnected from the designated antenna among the multiple antennas.

[0073] S703: Obtain the distance between the target antenna and other antennas according to the position of the target antenna.

[0074] The step of calibrating the positions of the other antennas according to the distances includes: calibrating the positions of the other antennas in order from near to far according to the distances.

[0075] S704: Calibrate the position of the other antenna according to the distance, where the other antenna is the antenna among the multiple antennas except the target antenna.

[0076] In step S702, the power supply control circuit can be connected to the main controller and the multiple antennas by the following two connection methods:

[0077] Method 1: The target antenna is an antenna in a power supply state among the multiple antennas after the power supply control circuit is disconnected from the designated antenna. The power supply control circuit includes a power saving controller and a normally closed power supply. The power saving controller is connected to the main controller and the other antennas respectively, and the normally closed power supply is connected to the target antenna. Figure 8 As shown, the method for calibrating the position of the target antenna includes:

[0078] S7021. Control the power saving controller to disconnect from the designated antenna to determine the target antenna that is in a powered state.

[0079] S7022. Calibrate the position of the target antenna.

[0080] Method 2: The target antenna is the designated antenna, the power supply control circuit includes a normally closed power supply, the normally closed power supply is connected to the other antenna, and the main controller is connected to the target antenna. Fig. 9 As shown, the method for calibrating the position of the target antenna includes:

[0081] S7023. Disconnect the connection with the target antenna to determine the other antenna that is in a powered state.

[0082] S7024. Calibrate the pending position for the other antenna.

[0083] S7025. Close the connection with the target antenna, and calibrate the position of the target antenna according to the pending position.

[0084] like Fig.10 As shown, the method also includes:

[0085] S705: After completing the position calibration of the other antennas, re-determine whether there is an antenna with an uncalibrated position among the multiple antennas.

[0086] S706: When it is determined that there is an antenna whose position is not calibrated among the multiple antennas, control the prompt device to issue a prompt message, where the prompt message is used to prompt that the antenna position calibration of the vehicle has failed.

[0087] With the above method, when the main controller detects that there is an antenna with an uncalibrated position among multiple antennas, it automatically calibrates the positions of all antennas, and calibrates the position of the target antenna by controlling the power supply control circuit to disconnect the connection with the specified antenna among the multiple antennas, and then calibrates the positions of the remaining antennas according to the distance between the target antenna and other antennas. Therefore, there is no need to calibrate in a specific calibration area, and it is not limited by the location, making the calibration process of the entire antenna position more convenient, and also shortening the vehicle production line.

[0088] Regarding the methods in the above embodiments, the specific manner in which each method performs operations has been described in detail in the embodiments of the device, and will not be elaborated here.

[0089] The present disclosure also relates to a vehicle 1100, such as Fig.11 As shown, the vehicle includes the above-mentioned antenna position calibration device 100.

[0090] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0091] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0092] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An antenna position calibration device, characterized in that: The device comprises: a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected to the plurality of antennas through the power supply control circuit, and the main controller is connected to the plurality of antennas; the power supply control circuit comprises a power saving controller and a normally closed power supply, the normally closed power supply is connected to a target antenna among the plurality of antennas, the power saving controller is respectively connected to the main controller and other antennas, and the other antennas are antennas among the plurality of antennas except the target antenna; The main controller is used to determine whether there is an antenna with an uncalibrated position among the multiple antennas. When it is determined that there is an antenna with an uncalibrated position among the multiple antennas, the main controller controls the power-saving controller to disconnect from the other antennas to determine the target antenna that is in a powered state and calibrate the position of the target antenna; and obtain the distance between the target antenna and the other antennas based on the position of the target antenna, and calibrate the position of the other antennas based on the distance.

2. The device according to claim 1, characterized in that The main controller is used to obtain calibration status signals of the multiple antennas, the calibration status signals are used to indicate whether the antennas have been calibrated, and determine whether there are antennas with uncalibrated positions among the multiple antennas based on the calibration status signals.

3. The device according to claim 1, characterized in that The main controller is used to calibrate the positions of the other antennas in order from near to far.

4. The device according to any one of claims 1 to 3, characterized in that The device also includes a prompting device, which is connected to the main controller; The main controller is also used to re-determine whether there are antennas with uncalibrated positions among the multiple antennas after completing the position calibration of the other antennas. When it is determined that there are antennas with uncalibrated positions among the multiple antennas, control the prompt device to issue a prompt message, and the prompt message is used to prompt that the antenna position calibration of the vehicle has failed.

5. An antenna position calibration device, characterized in that: The device comprises: a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected to the plurality of antennas through the power supply control circuit, and the main controller is connected to the plurality of antennas; the power supply control circuit comprises a normally closed power supply, the normally closed power supply is connected to other antennas, the main controller is connected to a target antenna, and the other antennas are antennas other than the target antenna among the plurality of antennas; The main controller is used to determine whether there is an antenna with an uncalibrated position among the multiple antennas. When it is determined that there is an antenna with an uncalibrated position among the multiple antennas, disconnect the connection with the target antenna to determine the other antennas in the power supply state, calibrate the pending position for the other antennas, close the connection with the target antenna, and calibrate the position of the target antenna according to the pending position; and obtain the distance between the target antenna and the other antennas according to the position of the target antenna, and calibrate the position of the other antennas according to the distance.

6. The device according to claim 5, characterized in that The main controller is used to obtain calibration status signals of the multiple antennas, the calibration status signals are used to indicate whether the antennas have been calibrated, and determine whether there are antennas with uncalibrated positions among the multiple antennas based on the calibration status signals.

7. The device according to claim 5, characterized in that The main controller is used to calibrate the positions of the other antennas in order from near to far.

8. The device according to any one of claims 5 to 7, characterized in that The device also includes a prompting device, which is connected to the main controller; The main controller is also used to re-determine whether there are antennas with uncalibrated positions among the multiple antennas after completing the position calibration of the other antennas. When it is determined that there are antennas with uncalibrated positions among the multiple antennas, control the prompt device to issue a prompt message, and the prompt message is used to prompt that the antenna position calibration of the vehicle has failed.

9. A method for calibrating an antenna position, characterized in that: Applicable to an antenna position calibration device, the device comprises: a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, the main controller is connected to the plurality of antennas through the power supply control circuit, the main controller is connected to the plurality of antennas; the power supply control circuit comprises a power saving controller and a normally closed power supply, the normally closed power supply is connected to a target antenna among the plurality of antennas, the power saving controller is respectively connected to the main controller and other antennas, the other antennas are antennas among the plurality of antennas except the target antenna; the method comprises: Determining whether there is an antenna with an uncalibrated position among the plurality of antennas; When it is determined that there is an antenna whose position is not calibrated among the multiple antennas, control the power saving controller to disconnect from the other antennas to determine the target antenna in a powered state and calibrate the position of the target antenna; Acquire the distance between the target antenna and the other antennas according to the position of the target antenna; The positions of the other antennas are calibrated according to the distance.

10. A method for calibrating an antenna position, characterized in that: Applicable to an antenna position calibration device, the device comprising: a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, the main controller being connected to the plurality of antennas through the power supply control circuit, the main controller being connected to the plurality of antennas; the power supply control circuit comprising a normally closed power supply, the normally closed power supply being connected to other antennas, the main controller being connected to a target antenna, the other antenna being an antenna other than the target antenna among the plurality of antennas; the method comprising: Determining whether there is an antenna with an uncalibrated position among the plurality of antennas; When it is determined that there is an antenna whose position is not calibrated among the multiple antennas, disconnecting the target antenna to determine the other antennas in a powered state, and calibrating the pending positions for the other antennas; closing the connection with the target antenna and calibrating the position of the target antenna according to the pending position; Acquire the distance between the target antenna and the other antennas according to the position of the target antenna; The positions of the other antennas are calibrated according to the distance.

11. A vehicle, characterized in that: The invention comprises the antenna position calibration device described in any one of claims 1 to 4, or comprises the antenna position calibration device described in any one of claims 5 to 8.

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