CN114966536A - Antenna position calibration device and method and vehicle - Google Patents

Antenna position calibration device and method and vehicle Download PDF

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Publication number
CN114966536A
CN114966536A CN202110808692.2A CN202110808692A CN114966536A CN 114966536 A CN114966536 A CN 114966536A CN 202110808692 A CN202110808692 A CN 202110808692A CN 114966536 A CN114966536 A CN 114966536A
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CN
China
Prior art keywords
antenna
antennas
power supply
main controller
target
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Pending
Application number
CN202110808692.2A
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Chinese (zh)
Inventor
王剑
王朋
魏莎莎
唐冬
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Great Wall Motor Co Ltd
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Great Wall Motor Co Ltd
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Publication date
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Priority to CN202110808692.2A priority Critical patent/CN114966536A/en
Publication of CN114966536A publication Critical patent/CN114966536A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The utility model relates to an antenna position calibration device, method and vehicle relates to antenna calibration technical field, and the device includes: the vehicle-mounted power supply system comprises a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected with the plurality of antennas through the power supply control circuit and is connected with the plurality of antennas; the main controller is used for determining whether antennas with uncalibrated positions exist in the plurality of antennas, under the condition that the antennas with the uncalibrated positions exist in the plurality of antennas, the power supply control circuit is controlled to be disconnected with the designated antennas in the plurality of antennas, the positions of the target antennas are calibrated, the target antennas are the designated antennas, or after the power supply control circuit is disconnected with the designated antennas, the antennas in the power supply state are in the plurality of antennas, the distances between the target antennas and other antennas are obtained according to the positions of the target antennas, the positions of the other antennas are calibrated according to the distances, and the other antennas are the antennas except the target antennas in the plurality of antennas.

Description

Antenna position calibration device and method and vehicle
Technical Field
The disclosure relates to the technical field of antenna calibration, in particular to an antenna position calibration device and method and a vehicle.
Background
With the development of vehicle technology, antennas are widely used in vehicles, and the antennas are used for receiving smart devices connected to the vehicles to control the vehicles by transmitting signals and calculating distances between the smart devices and the vehicles according to time differences of the received signals.
When the vehicle leaves a factory, the positions of the antennas on the vehicle need to be calibrated in a specific calibration area, a positioning base station is arranged in the specific calibration area, and the positions of all the antennas on the vehicle are calibrated through the positioning base station. The antenna calibration mode needs to be carried out in a specific calibration area, and is very easy to be limited by places, so that the calibration process of the whole antenna is very inconvenient, and the production line of the whole vehicle is too long.
Disclosure of Invention
In order to solve the above problems, the present disclosure provides an antenna position calibration apparatus, an antenna position calibration method, and a vehicle.
In a first aspect, the present disclosure provides an antenna position calibration apparatus, including: the vehicle-mounted antenna system comprises a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected with the plurality of antennas through the power supply control circuit and is connected with the plurality of antennas; the main controller is configured to determine whether an antenna at an uncalibrated position exists in the plurality of antennas, and calibrate a position of a target antenna, where the target antenna is the designated antenna, by controlling the power supply control circuit to disconnect the antenna at the uncalibrated position from a designated antenna in the plurality of antennas, or after the power supply control circuit disconnects the antenna from the designated antenna, an antenna in a power supply state among the plurality of antennas; 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, wherein the other antennas are the antennas except the target antenna in the plurality of antennas.
Optionally, the main controller is configured to obtain calibration status signals of the multiple antennas, where the calibration status signals are used to represent whether the antennas have been calibrated, and determine whether antennas at uncalibrated positions exist in the multiple antennas according to the calibration status signals.
Optionally, the target antenna is an antenna in a power supply state among the plurality of 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 respectively connected to the main controller and the other antennas, and the normally closed power supply is connected to the target antenna; and the main controller is used for controlling the power-saving controller to disconnect the specified antenna so as to determine the target antenna in a power supply state and demarcate the position of the target antenna.
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; and the main controller is used for disconnecting the connection with the target antenna so as to determine the other antennas in a power supply state, calibrating the positions to be set for the other antennas, closing the connection with the target antenna, and calibrating the position of the target antenna according to the positions to be set.
Optionally, the main controller is configured to sequentially calibrate the positions of the other antennas according to a sequence from near to far of the distance.
Optionally, the device further comprises a prompting device, and the prompting device is connected with the main controller; the main controller is further configured to, after completing the position calibration of the other antennas, re-determine whether an antenna at an uncalibrated position exists in the plurality of antennas, and control the prompting device to send prompting information when it is determined that an antenna at an uncalibrated position exists in the plurality of antennas, where the prompting information is used to prompt that the antenna position calibration of the vehicle fails.
In a second aspect, the present disclosure provides an antenna position calibration method applied to an antenna position calibration device, where the device includes: the vehicle-mounted antenna system comprises a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected with the plurality of antennas through the power supply control circuit and is connected with the plurality of antennas; the method comprises the following steps: determining whether an antenna with an uncalibrated position exists in the plurality of antennas; under the condition that the antennas with uncalibrated positions exist in the plurality of antennas, the position of a target antenna is calibrated by controlling the power supply control circuit to be disconnected from a specified antenna in the plurality of antennas, wherein the target antenna is the specified antenna, or the antenna in a power supply state is obtained after the power supply control circuit in the plurality of antennas is disconnected from the specified antenna; acquiring 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, wherein the other antennas are the antennas except the target antenna in the plurality of antennas.
Optionally, the determining whether an antenna with an uncalibrated position exists in the plurality of antennas includes: obtaining calibration state signals of the plurality of antennas, wherein the calibration state signals are used for representing whether the antennas have calibrated positions or not, and determining whether the antennas with uncalibrated positions exist in the plurality of antennas or not according to the calibration state signals.
Optionally, the target antenna is an antenna in a power supply state among the plurality of 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 respectively connected to the main controller and the other antennas, and the normally closed power supply is connected to the target antenna; the method comprises the following steps: controlling the power-saving controller to disconnect from the designated antenna to determine the target antenna in a power-on state; and calibrating the position of the target antenna.
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 with the other antennas, and the main controller is connected with the target antenna; the method comprises the following steps: disconnecting the target antenna to determine the other antenna in a powered state; calibrating the positions to be set for the other antennas; and closing the connection with the target antenna, and calibrating the position of the target antenna according to the position to be positioned.
Optionally, the calibrating the positions of the other antennas according to the distance includes: and sequentially calibrating the positions of the other antennas according to the sequence of the distances from near to far.
Optionally, the method further comprises: after the position calibration of the other antennas is finished, whether the antennas with uncalibrated positions exist in the plurality of antennas is determined again; and under the condition that the antennas with uncalibrated positions exist in the plurality of antennas, controlling the prompting device to send out prompting information, wherein the prompting information is used for prompting that the antenna position of the vehicle fails to be calibrated.
In a third aspect, the present disclosure provides a vehicle comprising the apparatus described above.
Through the technical scheme, the antenna position calibration 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 with the plurality of antennas through the power supply control circuit and is connected with the plurality of antennas; the main controller is configured to determine whether an antenna at an uncalibrated position exists in the multiple antennas, and calibrate a position of a target antenna, where the target antenna is the designated antenna, by controlling the power supply control circuit to disconnect the antenna at the uncalibrated position in the multiple antennas, or, after the power supply control circuit is disconnected from the designated antenna, obtain distances between the target antenna and other antennas according to the position of the target antenna, and calibrate positions of the other antennas according to the distances, where the other antennas are antennas other than the target antenna, in the multiple antennas. Therefore, the main controller marks the positions of all the antennas by itself under the condition that the antennas with the uncalibrated positions exist in the plurality of antennas, the positions of the target antennas are marked by controlling the power supply control circuit to be disconnected with the designated antennas in the plurality of antennas, and then the positions of the rest antennas are marked according to the distances between the target antennas and the other antennas. Therefore, the calibration is not needed to be carried out in a specific calibration area and is not limited by places, so that the calibration process of the whole antenna position is more convenient, and meanwhile, the production line of the vehicle is shortened.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic structural diagram of an antenna position calibration apparatus provided in an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another antenna position calibration apparatus provided in the embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another antenna position calibration apparatus provided in the embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another antenna position calibration apparatus provided in the embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another antenna position calibration apparatus provided in the embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of another antenna position calibration apparatus provided in the embodiment of the present disclosure;
fig. 7 is a schematic flowchart of an antenna position calibration method according to an embodiment of the present disclosure;
fig. 8 is a schematic flowchart of another antenna position calibration method provided in the embodiment of the present disclosure;
fig. 9 is a schematic flowchart of another antenna position calibration method provided in the embodiment of the present disclosure;
fig. 10 is a schematic flowchart of another antenna position calibration method provided in the embodiment of the present disclosure;
fig. 11 is a block diagram of a vehicle provided by an embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Firstly, an application scenario of the present disclosure is explained, where the present disclosure is used in a scenario of calibrating a position of an antenna on a vehicle, in the prior art, when the vehicle leaves a factory, the position of the antenna on the vehicle needs to be calibrated in a specific calibration area, a positioning base station is arranged in the specific calibration area, the positioning base station sends a positioning signal, the antenna sends a feedback signal when receiving the positioning signal, and a distance is calculated according to a time difference between sending the positioning signal and receiving the feedback signal. And the positioning base station determines the antenna closest to the base station according to the distance and calibrates the position of the antenna. When the antenna of the vehicle is replaced due to a fault, the position of the antenna on the vehicle also needs to be recalibrated by the handheld device, and the handheld device has the function of a base station. However, the inventor finds that the existing antenna position calibration mode requires a vehicle to add a specific calibration area on a production line, and the vehicle needs to enter the calibration area to calibrate the antenna position. The antenna calibration mode needs to be carried out in a specific calibration area, and is very easy to be limited by places, so that the calibration process of the whole antenna is very inconvenient, and the production line of the whole vehicle is too long. In order to solve the above problems, in the present disclosure, the main controller automatically calibrates the positions of all the antennas when detecting that there is an antenna with an uncalibrated position in the plurality of antennas, calibrates the position of the target antenna by controlling the power supply control circuit to disconnect from a specified antenna in the plurality of antennas, and calibrates the positions of the remaining antennas according to the distances between the target antenna and the other antennas. Therefore, the calibration is not needed to be carried out in a specific calibration area and is not limited by places, so that the calibration process of the whole antenna position is more convenient, and meanwhile, the production line of the vehicle is shortened.
Fig. 1 is a schematic structural diagram of an antenna position calibration apparatus provided in an embodiment of the present disclosure, and as shown in fig. 1, the apparatus 100 includes: the vehicle-mounted antenna system comprises a main controller 101, a power supply control circuit 102 and a plurality of antennas 103 arranged on a vehicle, wherein the main controller 101 is connected with the plurality of antennas 103 through the power supply control circuit 102, and the main controller 101 is connected with the plurality of antennas 103.
The master Controller 101 is connected to the plurality of antennas 103 through communication lines, the communication lines are used for data transmission between the master Controller 101 and the antennas 103, and communication between the master Controller 101 and the plurality of antennas 103 may be CAN (Controller Area Network, chinese) communication, LIN (Local Interconnect Network, chinese) communication, or other communication modes. The antenna 103 may be a UWB antenna with UWB (Ultra wide, chinese: a carrier-free communication technology) positioning function, or a bluetooth antenna with bluetooth positioning function. All the characteristics of the part number and hardware of the plurality of antennas 103 are the same.
The main controller 101 is configured to determine whether there is an antenna 103 at an uncalibrated position in the multiple antennas 103, and if it is determined that there is an antenna 103 at an uncalibrated position in the multiple antennas 103, calibrate a position of a target antenna, where the target antenna is the designated antenna, or the antenna 103 in a power supply state after the power supply control circuit 102 is disconnected from the designated antenna, and obtain a distance between the target antenna and another antenna according to the position of the target antenna, and calibrate a position of the another antenna according to the distance, where the another antenna is an antenna 103 except the target antenna in the multiple antennas 103.
Wherein the target antenna may be one or more of a plurality of antennas. The main controller 101 marks the position signal of the antenna 103, that is, the main controller 101 writes the position information of the antenna 103 into the position signal carried by the antenna 103.
Specifically, the main controller 101 is configured to obtain calibration status signals of the multiple antennas 103, where the calibration status signals are used to indicate whether the antennas are calibrated or not, and determine whether an antenna 103 with an uncalibrated position exists in the multiple antennas 103 according to the calibration status signals.
The status signal is 0 or 1, and whether the antenna corresponding to the status signal has a calibrated position may be preset, for example, when the status signal is 0, it indicates that the antenna 103 has no calibrated position, and when the status signal is 1, it indicates that the antenna 103 has a calibrated position.
When the vehicle is shipped from the factory, the numbers on the position signal bits of all the antennas provided on the vehicle are all 0. The number of the position signal bits may be one or more, for example, if the number of the position signal bits is two, the position signals of all antennas on the vehicle when the vehicle leaves the factory are 00. For convenience of explanation, the following examples will be described by taking the position signal as two bits and the position signals of all antennas as 00.
In this embodiment, the main controller 101 is configured to sequentially calibrate the positions of the other antennas according to the order from near to far, and after the position calibration of all antennas is completed, the status signal will become a calibrated signal.
For example, if the status signal is 0 when the position signal is not calibrated, the calibration signal will be 1 after calibration is completed.
Specifically, after the position signal of the target antenna is calibrated, the target antenna sends an antenna signal to the other antennas, after the other antennas receive the antenna signal, the other antennas feed back the signal to the main controller 101, the main controller 101 calculates the distance between the other antennas and the target antenna according to the time difference between the feedback signal and the antenna signal, and sequentially calibrates the positions of the other antennas according to the sequence from near to far of the distance.
Considering that there may be a delay in sending a signal from an antenna to the main controller in practice, in order to calculate the distance between another antenna and the target antenna more accurately, the target antenna may periodically send an antenna signal to the other antenna, after the other antenna receives the antenna signal, the other antenna feeds back a signal to the main controller 101, the main controller 101 calculates a first distance between the other antenna and the target antenna according to a time difference between the feedback signal and the sent antenna signal, and averages a plurality of distance values to obtain a distance between the other antenna and the target antenna. In this way, the distance between the other antenna and the target antenna can be determined more accurately.
The main controller 101 calculates the distance between the other antenna and the target antenna according to a TOF time algorithm, and specifically, the TOF time algorithm may refer to a related calculation method in the prior art, which is not described herein again.
For example, taking the example that the number of antennas on the vehicle is four, the target antenna is one, and the position signal of the target antenna is labeled 01, the antenna 103 closest to the target antenna is labeled 02, the antenna 103 farther from the target antenna is labeled 03, and the antenna 103 farthest from the target antenna is labeled 04.
In addition, if only some of the antennas 103 in the vehicle are not located, the main controller 101 returns all the position signals of all the antennas 103 to factory settings before all the antennas 103 are located, that is, the position signals of all the antennas 103 become 00.
By adopting the device, the main controller marks the positions of all the antennas by self under the condition of detecting that the antennas with uncalibrated positions exist in the plurality of antennas, the positions of the target antennas are marked by controlling the power supply control circuit to be disconnected with the designated antennas in the plurality of antennas, and then the positions of the rest antennas are marked according to the distances between the target antennas and the other antennas. Therefore, the calibration is not needed to be carried out in a specific calibration area and is not limited by places, so that the calibration process of the whole antenna position is more convenient, and meanwhile, the production line of the vehicle is shortened.
In the following, the connection between the power supply control circuit 102 and the plurality of antennas 103 is explained, and in the present embodiment, the position of the target antenna may be specified by either of the following two connection methods:
the first method is as follows: the target antenna is an antenna which is in a power supply 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 with the main controller 101 and the other antennas, and the normally closed power supply is connected with the target antenna.
The normally closed power supply means that the power supply is always in a closed state under a normal state, that is, other antennas connected with the normally closed power supply are always in a power supply state, and the normally closed power supply can be storage batteries distributed around a vehicle.
Considering the problem of the wiring length of the whole main controller, in the scheme, other antennas are connected with the normally closed power supply at the position of the antennas, so that the whole wiring length can be effectively reduced.
The main controller 101 is configured to control the power saving controller to disconnect from the designated antenna, so as to determine the target antenna in a power supply state, calibrate the position of the target antenna, obtain distances between the target antenna and other antennas according to the position of the target antenna, and sequentially calibrate positions of other antennas according to a sequence from near to far of the distance, where the other antennas are antennas 103 except the target antenna among the multiple antennas 103.
Specifically, after the position of the target antenna is calibrated, the main controller controls the power-saving controller to recover the power supply to the specified antenna so as to calibrate the positions of other antennas according to the distance between the target antenna and other antennas,
if the main controller 101 detects that the state signal of the antenna 103 in the vehicle indicates that the antenna 103 at the uncalibrated position exists in the vehicle, the position signal of the antenna 103 is determined to be 00.
For example, regarding the connection manner in the first manner, taking the number of the plurality of antennas in the vehicle as four as an example, as shown in fig. 2, an antenna a, an antenna B, an antenna C, and an antenna D are provided in the vehicle, wherein the antenna a, the antenna B, the antenna C, and the antenna D are respectively provided at four corners of the vehicle. In this example, the power supply control circuit may be connected to the main controller and four antennas as shown in fig. 3, the antenna a is connected to the normally closed power supply, the other antennas (in the figure, the antenna B, the antenna C, and the antenna D) are respectively connected to the power saving controller, the power saving controller is connected to the main controller, and the antenna a, the antenna B, the antenna C, and the antenna D are all connected to the main controller through communication lines for data transmission between all the antennas and the main controller. Firstly, the main controller determines whether an antenna with an uncalibrated position exists in the four antennas, and detects that the four antennas have no uncalibrated position. In this case, the main controller disconnects the antenna B, the antenna C, and the antenna D by controlling the power saving controller. That is, the power-saving controller stops supplying power to the antenna B, the antenna C and the antenna D, and determines that the antenna a is the target antenna, and at this time, only the antenna a in the vehicle is in the working state, and the main controller marks the position signal of the antenna a to 01. After the main controller marks the position signal of the antenna A, the power-saving controller is controlled to recover power supply to the antenna B, the antenna C and the antenna D, at the moment, the position signal of the antenna A is marked by the main controller, namely the main controller determines the position of the antenna A, the antenna A sends signals to other three antennas, the main controller calculates the distance between the antenna A and the other three antennas according to the arrival time of the signals, according to the distance information, the antenna closest to the antenna A is the antenna B, the main controller marks the position signal of the antenna B as 02, the antenna far away from the antenna A is the antenna C, the main controller marks the position signal of the antenna C as 03, the antenna farthest from the antenna A is the antenna D, and the main controller marks the position signal of the antenna D as 04.
The second method comprises the following steps: 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 with the other antennas, and the main controller 101 is connected with the target antenna.
The main controller 101 is configured to disconnect the connection with the target antenna to determine the other antennas in a power supply state, calibrate a to-be-determined position for the other antennas, close the connection with the target antenna, calibrate the position of the target antenna according to the to-be-determined position, obtain distances between the target antenna and the other antennas according to the position of the target antenna, and sequentially calibrate the positions of the other antennas according to a sequence from near to far of the distances, where the other antennas are antennas 103 except the target antenna among the multiple antennas 103.
In the second embodiment, the connection method between the power supply control circuit and the main controller and the connection method between the four antennas in fig. 2 are described by taking the setting position of the antenna in fig. 2 as an example, in this example, as shown in fig. 4, the antenna a is connected to the main controller, the other antennas (antenna B, antenna C, and antenna D in the figure) are respectively connected to the normally closed power supply, and the antenna a, the antenna B, the antenna C, and the antenna D are all connected to the main controller through communication lines for data transmission between all the antennas and the main controller. Firstly, the main controller determines whether an antenna with an uncalibrated position exists in the four antennas, and detects that the four antennas have no uncalibrated position. In this case, the main controller disconnects the antenna a by disconnecting it. That is, the main controller stops supplying power to the antenna a, determines that the antenna a is the target antenna, and temporarily sets the position signals of the antenna B, the antenna C and the antenna D to be 05 (the position signals indicate that the position of the antenna is the position to be set) when the antenna B, the antenna C and the antenna D are in the working state in the vehicle. After the main controller finishes calibrating the antenna B, the antenna C and the antenna D, the power supply to the antenna A is recovered, and at the moment, the main controller already calibrates the position signals (to be positioned) of the antenna B, the antenna C and the antenna D, namely the main controller indicates that only the position signal of the antenna A in all the antennas is 00. At this time, the main controller marks the position signal of the antenna a as 01, after the position signal of the antenna a is marked (the main controller has determined the position of the antenna a), the antenna a transmits signals to the other three antennas, the main controller calculates the distances between the antenna a and the other three antennas according to the arrival time of the signals, and according to the distance information, the antenna closest to the antenna a is the antenna B, the main controller marks the position signal of the antenna B as 02, the antenna farther from the antenna a is the antenna C, the main controller marks the position signal of the antenna C as 03, the antenna farthest from the antenna a is the antenna D, and the main controller marks the position signal of the antenna D as 04.
When the target antenna is multiple, calibrating the positions of the other antennas according to the position of the target antenna may be calibrating the positions of the other antennas according to one of the target antennas or calibrating the positions of the other antennas according to multiple ones of the target antennas, where each target antenna calibrates other antennas closer to itself, and the target antenna is multiple antennas whose set positions on the vehicle are not adjacent to each other.
In the second embodiment, the connection method between the power supply control circuit and the main controller and the connection method between the four antennas in fig. 2 are described by taking the setting position of the antenna in fig. 2 as an example, in this example, as shown in fig. 5, the antenna a and the antenna D are respectively connected to the main controller, the antenna B and the antenna C are respectively connected to the normally closed power supply, and the antenna a, the antenna B, the antenna C and the antenna D are all connected to the main controller through communication lines for data transmission between all the antennas and the main controller. Firstly, the main controller determines whether an antenna with an uncalibrated position exists in the four antennas, and detects that the four antennas have no uncalibrated position. In this case, the main controller disconnects the antenna a and the antenna D by disconnecting them. That is, the main controller stops supplying power to the antenna a and the antenna D, determines that the antenna a and the antenna D are target antennas, and temporarily sets the position signals of the antenna B and the antenna C to be 05 (the position signals indicate that the positions of the antennas are to be set) when only the antenna B and the antenna C are in the working state in the vehicle. After the main controller finishes calibrating the antenna B and the antenna C, the power supply to the antenna A is recovered, and at the moment, the main controller already calibrates the position signals (to be positioned) of the antenna B and the antenna C, namely the main controller indicates that only the position signal of the antenna A in the working state is 00. At this time, the main controller calibrates the position signal of the antenna a to 01, after the position signal of the antenna a is calibrated (the main controller has determined the position of the antenna a), the power supply to the antenna D is resumed, and at this time, the main controller has calibrated the position signals of the antenna a, the antenna B and the antenna C (wherein, the antenna B and the antenna D are to be positioned), and only the position signal of the antenna D is 00 in all the antennas at present. The main controller marks the position signal of the antenna D as 04, the antenna A and the antenna D send signals to other antennas, the main controller calculates the distance between the antenna A and the antenna D and other antennas according to the arrival time of the signals, according to the distance information, the antenna close to the antenna A is the antenna B, the main controller marks the position signal of the antenna B as 02, the antenna close to the antenna D is the antenna C, and the main controller marks the position signal of the antenna C as 03.
As shown in fig. 6, the device 100 further includes a prompting device 104, and the prompting device 104 is connected to the main controller 101.
The main controller 101 is further configured to, after completing the position calibration of the other antennas, redetermine whether the antenna 103 with the uncalibrated position exists in the plurality of antennas 103, and, in a case where it is determined that the antenna 103 with the uncalibrated position exists in the plurality of antennas 103, control the prompting device 104 to send out prompting information, where the prompting information is used to prompt that the antenna position calibration of the vehicle has failed.
The prompting device 104 may include a voice prompting device or a vehicle-mounted display screen, and when the position calibration of the antenna 103 of the vehicle fails, sends a prompting message to prompt a user to check the vehicle condition and correct the vehicle condition in time.
Specifically, after completing the position calibration of the other antennas, re-determining whether there is an antenna 103 with an uncalibrated position in the multiple antennas 103, at this time, if there is an uncalibrated antenna 103 in the multiple antennas 103, determining that the antenna position calibration of the vehicle fails, and the main controller 101 sends a prompt message through the prompt device 104 to remind the user.
For example, the prompt message may be "vehicle antenna position calibration fails, please check in time".
In consideration of the resource saving factor, in the scheme, only when the storage battery on the vehicle is powered on each time, the main controller 101 automatically detects whether the antenna 103 at the uncalibrated position exists in the vehicle, and if the antenna 103 at the uncalibrated position exists in the vehicle, the position signals of all the antennas 103 in the vehicle are calibrated according to the device. And after the calibration is finished, detecting whether the antenna 103 with the uncalibrated position exists in the vehicle again, if the antenna 103 with the uncalibrated position exists in the vehicle, determining that the calibration fails, and sending out prompt information through the prompt device 104.
By adopting the device, the main controller marks the positions of all the antennas by self under the condition of detecting that the antennas with uncalibrated positions exist in the plurality of antennas, the positions of the target antennas are marked by controlling the power supply control circuit to be disconnected with the designated antennas in the plurality of antennas, and then the positions of the rest antennas are marked according to the distances between the target antennas and the other antennas. Therefore, the calibration is not needed to be carried out in a specific calibration area and is not limited by places, so that the calibration process of the whole antenna position is more convenient, and meanwhile, the production line of the vehicle is shortened.
Fig. 7 is a schematic flowchart of an antenna position calibration method provided in an embodiment of the present disclosure, and is applied to an antenna position calibration apparatus, where the apparatus includes: the vehicle-mounted power supply system comprises a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected with the plurality of antennas through the power supply control circuit, and the main controller is connected with the plurality of antennas. As shown in fig. 7, the method comprises the steps of:
s701, determining whether antennas with uncalibrated positions exist in the plurality of antennas.
The method comprises the steps of obtaining calibration state signals of a plurality of antennas, wherein the calibration state signals are used for representing whether the antennas are calibrated or not, and determining whether antennas with uncalibrated positions exist in the plurality of antennas or not according to the calibration state signals.
S702, under the condition that the antenna with the uncalibrated position exists in the plurality of antennas, the position of a target antenna is calibrated by controlling the power supply control circuit to be disconnected with a specified antenna in the plurality of antennas, wherein the target antenna is the specified antenna, or the antenna in a power supply state is obtained after the power supply control circuit is disconnected with the specified antenna in the plurality of antennas.
And S703, acquiring the distance between the target antenna and other antennas according to the position of the target antenna.
Wherein the calibrating the position of the other antenna according to the distance comprises: and sequentially calibrating the positions of the other antennas according to the sequence of the distance from near to far.
And S704, calibrating the positions of the other antennas according to the distance, wherein the other antennas are the antennas except the target antenna in the plurality of antennas.
In step S702, the power supply control circuit may be connected to the main controller and the plurality of antennas by the following two connection methods:
the method comprises the following steps: the target antenna is an antenna in a power supply state in a plurality of antennas after the power supply control circuit is disconnected from the designated antenna, the power supply control circuit comprises a power-saving controller and a normally closed power supply, the power-saving controller is respectively connected with the main controller and the other antennas, and the normally closed power supply is connected with the target antenna. As shown in fig. 8, the method for calibrating the position of the target antenna includes:
s7021, controlling the power saving controller to disconnect the designated antenna to determine the target antenna in a power supply state.
S7022, calibrating the position of the target antenna.
The second method comprises the following steps: the target antenna is the designated antenna, the power supply control circuit comprises a normally closed power supply, the normally closed power supply is connected with the other antennas, and the main controller is connected with the target antenna. As shown in fig. 9, the method for calibrating the position of the target antenna includes:
s7023, disconnecting the target antenna to determine the other antenna in the power supply state.
And S7024, calibrating the positions to be determined for the other antennas.
And S7025, closing the connection with the target antenna, and calibrating the position of the target antenna according to the position to be positioned.
As shown in fig. 10, the method further includes:
s705, after the position calibration of the other antennas is completed, whether antennas with uncalibrated positions exist in the plurality of antennas is determined again.
And S706, under the condition that the antenna with the uncalibrated position exists in the plurality of antennas, controlling the prompting device to send out prompting information, wherein the prompting information is used for prompting that the antenna position of the vehicle fails to be calibrated.
By adopting the method, the main controller marks the positions of all the antennas by self under the condition that the main controller detects that the antennas with the uncalibrated positions exist in the plurality of antennas, the positions of the target antennas are marked by controlling the power supply control circuit to be disconnected with the designated antennas in the plurality of antennas, and then the positions of the rest antennas are marked according to the distances between the target antennas and the other antennas. Therefore, the calibration is not needed to be carried out in a specific calibration area and is not limited by places, so that the calibration process of the whole antenna position is more convenient, and the production line of the vehicle is shortened.
With regard to the methods in the above-described embodiments, the specific manner in which each method performs an operation has been described in detail in the embodiments related to the apparatus, and will not be described in detail herein.
The present disclosure also relates to a vehicle 1100, as shown in fig. 11, including the antenna position calibration apparatus 100.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. An antenna position calibration apparatus, characterized in that the apparatus comprises: the vehicle-mounted antenna system comprises a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected with the plurality of antennas through the power supply control circuit and is connected with the plurality of antennas;
the main controller is configured to determine whether an antenna at an uncalibrated position exists in the plurality of antennas, and calibrate a position of a target antenna, where the target antenna is the designated antenna, by controlling the power supply control circuit to disconnect the antenna at the uncalibrated position from a designated antenna in the plurality of antennas, or after the power supply control circuit disconnects the antenna from the designated antenna, an antenna in a power supply state among the plurality of antennas; 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, wherein the other antennas are the antennas except the target antenna in the plurality of antennas.
2. The apparatus of claim 1, wherein the main controller is configured to obtain calibration status signals of a plurality of antennas, the calibration status signals being used to indicate whether the antennas have been calibrated, and determine whether there is an uncalibrated antenna in the plurality of antennas according to the calibration status signals.
3. The apparatus according to claim 1, wherein the target antenna is an antenna in a power supply state among the plurality of 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 respectively connected to the main controller and the other antennas, and the normally closed power supply is connected to the target antenna;
and the main controller is used for controlling the power-saving controller to disconnect the specified antenna so as to determine the target antenna in a power supply state and demarcate the position of the target antenna.
4. The device of claim 1, wherein the target antenna is the designated antenna, the power control circuit comprises a normally-closed power supply, the normally-closed power supply is connected with the other antennas, and the main controller is connected with the target antenna;
and the main controller is used for disconnecting the connection with the target antenna to determine the other antennas in a power supply state, calibrating the positions to be set for the other antennas, closing the connection with the target antenna, and calibrating the positions of the target antenna according to the positions to be set.
5. The apparatus of claim 1, wherein the main controller is configured to sequentially calibrate the positions of the other antennas according to the order of the distances from near to far.
6. The device according to any one of claims 1 to 5, further comprising a prompting device, wherein the prompting device is connected with the main controller;
the main controller is further configured to, after completing the position calibration of the other antennas, re-determine whether an antenna at an uncalibrated position exists in the plurality of antennas, and control the prompting device to send prompting information when it is determined that an antenna at an uncalibrated position exists in the plurality of antennas, where the prompting information is used to prompt that the antenna position calibration of the vehicle fails.
7. An antenna position calibration method is characterized by being applied to an antenna position calibration device, and the device comprises: the vehicle-mounted antenna system comprises a main controller, a power supply control circuit and a plurality of antennas arranged on a vehicle, wherein the main controller is connected with the plurality of antennas through the power supply control circuit and is connected with the plurality of antennas; the method comprises the following steps:
determining whether an antenna with an uncalibrated position exists in the plurality of antennas;
under the condition that the antennas with uncalibrated positions exist in the plurality of antennas, the position of a target antenna is calibrated by controlling the power supply control circuit to be disconnected from a specified antenna in the plurality of antennas, wherein the target antenna is the specified antenna, or the antenna in a power supply state after the power supply control circuit in the plurality of antennas is disconnected from the specified antenna;
acquiring 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, wherein the other antennas are the antennas except the target antenna in the plurality of antennas.
8. The method according to claim 7, wherein the target antenna is an antenna in a power supply state among the plurality of 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 respectively connected with the main controller and the other antennas, and the normally closed power supply is connected with the target antenna; the method comprises the following steps:
controlling the power saving controller to disconnect the designated antenna to determine the target antenna in a power supply state;
and calibrating the position of the target antenna.
9. The method of claim 7, wherein the target antenna is the designated antenna, the power control circuit includes a normally closed power supply connected to the other antenna, and the master controller is connected to the target antenna; the method comprises the following steps:
disconnecting the target antenna to determine the other antenna in a powered state;
calibrating the positions to be set for the other antennas;
and closing the connection with the target antenna, and calibrating the position of the target antenna according to the position to be determined.
10. A vehicle, characterized in that it comprises a device according to any one of the preceding claims 1 to 6.
CN202110808692.2A 2021-07-16 2021-07-16 Antenna position calibration device and method and vehicle Pending CN114966536A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110808692.2A CN114966536A (en) 2021-07-16 2021-07-16 Antenna position calibration device and method and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110808692.2A CN114966536A (en) 2021-07-16 2021-07-16 Antenna position calibration device and method and vehicle

Publications (1)

Publication Number Publication Date
CN114966536A true CN114966536A (en) 2022-08-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110808692.2A Pending CN114966536A (en) 2021-07-16 2021-07-16 Antenna position calibration device and method and vehicle

Country Status (1)

Country Link
CN (1) CN114966536A (en)

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