CN115987314A - Vehicle-mounted intelligent antenna adjusting method and device - Google Patents
Vehicle-mounted intelligent antenna adjusting method and device Download PDFInfo
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- CN115987314A CN115987314A CN202310218906.XA CN202310218906A CN115987314A CN 115987314 A CN115987314 A CN 115987314A CN 202310218906 A CN202310218906 A CN 202310218906A CN 115987314 A CN115987314 A CN 115987314A
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Abstract
The application relates to a vehicle-mounted intelligent antenna adjusting method, a vehicle-mounted intelligent antenna adjusting device, computer equipment and a storage medium. The method is applied to a processing module in the vehicle-mounted terminal; the vehicle-mounted terminal comprises a processing module and an antenna gain control module; the vehicle-mounted terminal is connected with the vehicle-mounted central control entertainment module through the processing module and is connected with the vehicle-mounted intelligent antenna through the antenna gain control module; the method comprises the following steps: acquiring current vehicle position information stored by a vehicle-mounted central control entertainment module; determining the current shielding degree of the vehicle-mounted intelligent antenna according to the current vehicle position information; determining a current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and the antenna signal attenuation function; and determining a signal compensation value of the vehicle-mounted intelligent antenna according to the current signal attenuation value, and controlling an antenna gain control module to perform signal compensation on the vehicle-mounted intelligent antenna according to the signal compensation value. By adopting the method, the communication performance of the vehicle-mounted intelligent antenna can be improved when the vehicle runs under different road conditions.
Description
Technical Field
The application relates to the technical field of vehicle-mounted antennas, in particular to a vehicle-mounted intelligent antenna adjusting method and device.
Background
The in-vehicle smart antenna is a component used in an in-vehicle terminal to transmit or receive electromagnetic waves to transmit information by the electromagnetic waves. The antennas are all reversible, i.e. the same pair of antennas can be used as both transmitting and receiving antennas, and the basic characteristic parameters of the same antenna are the same as those of the transmitting or receiving antenna.
The vehicle needs to realize real-time communication between vehicles through the vehicle-mounted intelligent antenna in the formation driving process, each vehicle in a fleet is provided with the vehicle-mounted terminal, and the vehicle-mounted terminals establish communication connection between the vehicle-mounted intelligent antennas through special short-range communication or cellular communication signals, so that formation management of the vehicles is realized, a certain safe distance can be kept between the vehicles, and related data in the driving process can be shared. However, in the conventional technology, the stability of the communication performance of the vehicle-mounted smart antenna cannot be guaranteed during the running process of the vehicle, so that the vehicle-mounted smart antenna is lost or interrupted in communication, and serious traffic accidents may be caused.
Disclosure of Invention
In view of the above, it is necessary to provide a vehicle-mounted smart antenna adjusting method, a device, a computer device, and a storage medium, which can ensure the stability of the communication performance of the vehicle-mounted smart antenna during driving.
In one embodiment, a vehicle-mounted intelligent antenna adjusting method is provided, and the method is applied to a processing module in a vehicle-mounted terminal; the vehicle-mounted terminal comprises a processing module and an antenna gain control module; the vehicle-mounted terminal is connected with the vehicle-mounted central control entertainment module through the processing module and is connected with the vehicle-mounted intelligent antenna through the antenna gain control module; the method comprises the following steps:
acquiring current vehicle position information from a vehicle-mounted central control entertainment module;
determining the current shielding degree of the vehicle-mounted intelligent antenna according to the current vehicle position information;
determining a current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and the antenna signal attenuation function; the antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna and the signal attenuation value of the vehicle-mounted intelligent antenna;
and determining a signal compensation value of the vehicle-mounted intelligent antenna according to the current signal attenuation value, and controlling an antenna gain control module to perform signal compensation on the vehicle-mounted intelligent antenna according to the signal compensation value.
In one embodiment, the vehicle-mounted terminal further comprises an inertia sensing module; the inertial sensing module is connected with the processing module, and the vehicle-mounted terminal is also connected with a GNSS antenna of the global navigation satellite system through the processing module; obtaining current vehicle position information from an on-vehicle central control entertainment module, comprising: acquiring real-time vehicle position information fed back by a GNSS antenna and real-time vehicle attitude information fed back by an inertial sensing module; generating an information fusion instruction according to the real-time vehicle position information and the real-time vehicle attitude information, and outputting the information fusion instruction to the vehicle-mounted central control entertainment module; the information fusion instruction is used for instructing the vehicle-mounted central control entertainment module to fuse the real-time vehicle position information and the real-time vehicle attitude information into a high-precision map, and calculating the current vehicle position information according to the fused high-precision map; and receiving the current vehicle position information in response to the position information feedback operation of the vehicle-mounted central control entertainment module.
In one embodiment, the real-time vehicle location information includes current vehicle longitude and latitude coordinates of a target vehicle configured with the in-vehicle terminal.
In one embodiment, the inertial sensing module comprises an acceleration sensor and an angular velocity sensor; the acceleration sensor and the angular velocity sensor are connected with the processing module; the real-time vehicle attitude information comprises three-axis acceleration information fed back by the acceleration sensor in real time and three-axis angular velocity information fed back by the angular velocity sensor in real time.
In one embodiment, determining the current shielding degree of the vehicle-mounted smart antenna according to the current vehicle position information includes: determining the current road condition environment of a target vehicle provided with a vehicle-mounted terminal according to the current vehicle position information; matching according to the current road condition environment and the shielding degree matching function to obtain the current shielding degree; the shielding degree matching function is used for representing the corresponding relation between the road condition environment of the target vehicle and the shielding degree of the vehicle-mounted intelligent antenna.
In one embodiment, the method further includes: storing an antenna signal attenuation function and a shielding degree matching function in response to executing a function importing operation; and the function importing operation is used for importing the antenna signal attenuation function and the shielding degree matching function into the vehicle-mounted terminal.
In one embodiment, the shielding degree matching function is determined according to an analysis result obtained by performing feature analysis on the road condition placing environment of the preset number of experimental vehicle-mounted smart antennas and the corresponding experimental shielding degree.
In one embodiment, the vehicle-mounted smart antenna is a V2X antenna.
In one embodiment, a vehicle-mounted smart antenna adjusting method is provided, and the method is applied to a vehicle-mounted central control entertainment module; the vehicle-mounted terminal is connected with the vehicle-mounted central control entertainment module through the processing module and is connected with the vehicle-mounted intelligent antenna through the antenna gain control module; the vehicle-mounted terminal comprises a processing module and an antenna gain control module; the method comprises the following steps: sending the current vehicle position information to a processing module, so that when the processing module receives the current vehicle position information, the processing module determines the current shielding degree of the vehicle-mounted intelligent antenna according to the current vehicle position information, determines the current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and an antenna signal attenuation function, determines the signal compensation value of the vehicle-mounted intelligent antenna according to the current signal attenuation value, and controls an antenna gain control module to perform signal compensation on the vehicle-mounted intelligent antenna according to the signal compensation value; the antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna and the signal attenuation value of the vehicle-mounted intelligent antenna.
In one embodiment, an in-vehicle smart antenna adjusting apparatus is provided, the computer apparatus includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of any one of the above method embodiments when executing the computer program.
The vehicle-mounted intelligent antenna adjusting method, the vehicle-mounted intelligent antenna adjusting device, the computer equipment and the storage medium receive the current vehicle position information fed back by the vehicle-mounted central control entertainment module; then, determining the current shielding degree of the vehicle-mounted intelligent antenna according to the current vehicle position information; then, determining a current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and the antenna signal attenuation function; the antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna and the signal attenuation value of the vehicle-mounted intelligent antenna; and finally, determining a signal compensation value of the vehicle-mounted intelligent antenna according to the current signal attenuation value, and controlling the antenna gain control module to perform signal compensation on the vehicle-mounted intelligent antenna according to the signal compensation value, so that the stability of the communication performance of the vehicle-mounted intelligent antenna in the driving process is ensured, the communication performance of the vehicle-mounted intelligent antenna when the vehicle is driven under different road conditions is improved, and the problem that the vehicle-mounted intelligent antenna is lost or interrupted in communication due to the communication performance of the vehicle-mounted intelligent antenna when the vehicle is driven under different road conditions is solved.
Drawings
FIG. 1 is a diagram of a first application environment of a method for adjusting a vehicle-mounted smart antenna in an embodiment;
FIG. 2 is a schematic flow chart of a first method for adjusting a vehicle-mounted smart antenna according to an embodiment;
FIG. 3 is a diagram of a second environment in which an embodiment of the method for adjusting the smart antenna for a vehicle is implemented;
FIG. 4 is a flowchart illustrating the steps for obtaining current vehicle location information from an in-vehicle entertainment module, according to one embodiment;
FIG. 5 is a flowchart illustrating the step of determining the current shielding degree of the on-board smart antenna according to the current vehicle location information in one embodiment;
FIG. 6 is a second schematic flow chart diagram illustrating a method for adjusting an onboard smart antenna, according to an exemplary embodiment;
FIG. 7 is a block diagram showing the structure of an in-vehicle smart antenna adjusting apparatus according to an embodiment;
fig. 8 is an internal structural diagram of the vehicle-mounted smart antenna adjusting apparatus in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first resistance may be referred to as a second resistance, and similarly, a second resistance may be referred to as a first resistance, without departing from the scope of the present application. The first resistance and the second resistance are both resistances, but they are not the same resistance.
It is to be understood that "connection" in the following embodiments is to be understood as "electrical connection", "communication connection", and the like if the connected circuits, modules, units, and the like have communication of electrical signals or data with each other.
As used herein, the singular forms "a", "an" and "the" may include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises/comprising," "includes" or "including," etc., specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
In the following, an application environment of the vehicle-mounted smart antenna adjusting method provided in the embodiment of the present application will be briefly described.
As shown in FIG. 1, the application environment is a vehicle-mounted terminal 100, and the vehicle-mounted terminal 100 may include a processing module 110 and an antenna gain control module 120. The vehicle-mounted terminal 100 is connected to the vehicle-mounted central control entertainment module 200 through the processing module 110, and is connected to the vehicle-mounted smart antenna 300 through the antenna gain control module 120.
In a first aspect, as shown in fig. 2, a method for adjusting a vehicle-mounted smart antenna is provided, which is described by taking the method as an example applied to the processing module 110 in fig. 1, and includes the following steps:
and step S202, acquiring the current vehicle position information from the vehicle-mounted central control entertainment module.
The current vehicle position information stored by the in-vehicle central entertainment module 200 is used to represent the current position of the target vehicle equipped with the in-vehicle terminal 100. It is understood that the processing module 110 may obtain current vehicle location information from the in-vehicle central entertainment module 200.
In one embodiment, as shown in fig. 3, the vehicle-mounted terminal 100 further includes an inertia sensing module 130; the inertial sensing module 130 is connected to the processing module 110, and the vehicle-mounted terminal 100 is further connected to the GNSS antenna 400 of the global navigation satellite system through the processing module 110. As shown in fig. 4, the method for acquiring the current vehicle position information from the in-vehicle central entertainment module includes steps S401 to S403.
Step S401, obtaining real-time vehicle position information fed back by the GNSS antenna and real-time vehicle attitude information fed back by the inertial sensing module.
The real-time vehicle attitude information fed back by the inertial sensing module is used for representing the current vehicle attitude of the target vehicle equipped with the vehicle-mounted terminal 100. Specifically, the processing module 110 may obtain real-time vehicle position information fed back by the GNSS antenna 400 of the global navigation satellite system, and may also obtain real-time vehicle attitude information fed back by the inertial sensing module 130.
In one embodiment, the real-time vehicle position information fed back by the GNSS antenna 400 of the global navigation satellite system includes the current vehicle longitude coordinates of the target vehicle equipped with the in-vehicle terminal 100 and the current vehicle latitude coordinates of the target vehicle equipped with the in-vehicle terminal 100.
In one embodiment, the inertial sensing module 130 includes an acceleration sensor and an angular velocity sensor. The acceleration sensor and the angular velocity sensor are connected to the processing module 110. It is understood that the real-time vehicle attitude information includes three-axis acceleration information fed back by the acceleration sensor in real time and three-axis angular velocity information fed back by the angular velocity sensor in real time.
And S402, generating an information fusion instruction according to the real-time vehicle position information and the real-time vehicle attitude information, and outputting the information fusion instruction to the vehicle-mounted central control entertainment module.
The information fusion instruction is used for instructing the vehicle-mounted central control entertainment module 200 to fuse the real-time vehicle position information and the real-time vehicle attitude information into the high-precision map, and calculating the current vehicle position information according to the fused high-precision map.
It can be understood that the processing module 110 may generate an information fusion instruction according to the real-time vehicle position information and the real-time vehicle posture information, and output the information fusion instruction to the vehicle-mounted central entertainment module 200, so that the vehicle-mounted central entertainment module 200 may receive the information fusion instruction output by the processing module 110, and the vehicle-mounted central entertainment module 200 may also fuse the real-time vehicle position information and the real-time vehicle posture information into a high-precision map according to the instruction of the information fusion instruction, and calculate the current vehicle position information according to the fused high-precision map.
And S403, receiving the current vehicle position information in response to the position information feedback operation of the vehicle-mounted central control entertainment module.
Wherein the position information feedback operation is used to instruct the in-vehicle central control entertainment module 200 to feed back the current vehicle position information to the processing module 110. Specifically, when the vehicle-mounted central control entertainment module 200 calculates the current vehicle position information according to the fused high-precision map, the vehicle-mounted central control entertainment module 200 executes the position information feedback operation of the vehicle-mounted central control entertainment module 200, so as to transmit the current vehicle position information to the processing module 110. It is understood that the processing module 110 may receive the current vehicle location information upon recognizing the location information feedback operation of the in-vehicle central entertainment module 200.
In a specific example, the in-vehicle central control entertainment module 200 and the processing module 110 transmit the current vehicle position information through a CAN bus, an ethernet or a USB, which is only a specific example and is flexibly set according to the user requirement in practical application, and is not limited herein.
In the embodiment, the real-time vehicle position information fed back by the GNSS antenna and the real-time vehicle attitude information fed back by the inertial sensing module are obtained; then, generating an information fusion instruction according to the real-time vehicle position information and the real-time vehicle attitude information, and outputting the information fusion instruction to the vehicle-mounted central control entertainment module; then, the accurate current vehicle position information is received in response to the position information feedback operation of the vehicle-mounted central control entertainment module, so that the current shielding degree and the current signal attenuation value of the vehicle-mounted intelligent antenna 300 can be conveniently determined according to the current vehicle position information, and the accuracy of signal compensation on the vehicle-mounted intelligent antenna 300 is improved.
And S204, determining the current shielding degree of the vehicle-mounted intelligent antenna according to the current vehicle position information.
Wherein, the current vehicle position information and the current shielding degree of the vehicle-mounted intelligent antenna 300 have a one-to-one correspondence relationship; the processing module 110 may determine the current shielding degree of the in-vehicle smart antenna 300 according to the current vehicle position information.
In one embodiment, the onboard smart antenna 300 is a V2X antenna.
In one embodiment, as shown in fig. 5, determining the current shielding degree of the vehicle-mounted smart antenna according to the current vehicle position information includes step S501 and step S502.
Step S501, determining the current road condition environment of the target vehicle configured with the vehicle-mounted terminal according to the current vehicle position information.
The current road condition environment is used to represent the current road condition environment of the target vehicle equipped with the vehicle-mounted terminal 100. It can be understood that the processing module 110 is pre-configured with a traffic environment database, and the traffic environment database is used for storing the corresponding relationship between the vehicle location information and the traffic environment. Based on the road condition environment database, the processing module 110 can accurately determine the current road condition environment of the target vehicle configured with the vehicle-mounted terminal according to the current vehicle position information.
In one particular example, current road conditions include open space, tall buildings, elevated buildings, tunnels, and the like. The above is only a specific example, and the setting is flexible according to the user requirement in practical application, and is not limited herein.
And step S502, matching according to the current road condition environment and the shielding degree matching function to obtain the current shielding degree.
The shielding degree matching function is used for representing the corresponding relation between the road condition environment of the target vehicle and the shielding degree of the vehicle-mounted intelligent antenna 300. Specifically, the processing module 110 matches the current road condition environment and the shielding degree matching function, so as to obtain the accurate current shielding degree of the vehicle-mounted smart antenna 300.
In one embodiment, the shielding degree matching function is determined according to an analysis result obtained by performing feature analysis on the road condition environment where the preset number of experimental vehicle-mounted smart antennas 300 are placed and the corresponding experimental shielding degree.
In the embodiment, the current road condition environment of the target vehicle provided with the vehicle-mounted terminal is determined according to the current vehicle position information; then, match according to current road conditions environment and sheltering from degree matching function, can obtain accurate current degree of sheltering from, just also be convenient for accurately confirm the current signal attenuation value of on-vehicle smart antenna 300 according to current degree of sheltering from, just also promoted the accuracy of carrying out signal compensation to on-vehicle smart antenna 300.
And step S206, determining the current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and the antenna signal attenuation function.
The antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna and the signal attenuation value of the vehicle-mounted intelligent antenna. Specifically, the processing module 110 may determine the current signal attenuation value of the vehicle-mounted smart antenna 300 according to the current shielding degree and the antenna signal attenuation function.
And S208, determining a signal compensation value of the vehicle-mounted intelligent antenna according to the current signal attenuation value, and controlling an antenna gain control module to perform signal compensation on the vehicle-mounted intelligent antenna according to the signal compensation value.
Wherein, the current signal attenuation value of the vehicle-mounted smart antenna 300 corresponds to the signal compensation value of the vehicle-mounted smart antenna 300 one to one. In a specific example, when the current signal attenuation value of the vehicle-mounted smart antenna 300 is 1dB, the current signal attenuation value of the vehicle-mounted smart antenna 300 may be directly used as the signal compensation value of the vehicle-mounted smart antenna 300, and the current signal attenuation value of the vehicle-mounted smart antenna 300 plus the loss value of 0.2dB may be used as the signal compensation value of the vehicle-mounted smart antenna 300. The above is only a specific example, and the setting is flexible according to the user requirement in practical application, and is not limited herein.
Specifically, the processing module 110 may determine a signal compensation value of the vehicle-mounted smart antenna 300 according to the current signal attenuation value, and control the antenna gain control module 120 to perform signal compensation on the vehicle-mounted smart antenna 300 according to the signal compensation value, so as to improve the communication performance of the vehicle-mounted smart antenna when the vehicle runs on different road conditions, and avoid the problem that the vehicle-mounted smart antenna 300 loses signals or interrupts communication due to the communication performance of the vehicle-mounted smart antenna when the vehicle runs on different road conditions.
Based on this, the vehicle-mounted intelligent antenna adjusting method receives the current vehicle position information fed back by the vehicle-mounted central control entertainment module 200; then, determining the current shielding degree of the vehicle-mounted intelligent antenna 300 according to the current vehicle position information; then, determining a current signal attenuation value of the vehicle-mounted intelligent antenna 300 according to the current shielding degree and the antenna signal attenuation function; the antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna 300 and the signal attenuation value of the vehicle-mounted intelligent antenna 300; finally, the signal compensation value of the vehicle-mounted smart antenna 300 is determined according to the current signal attenuation value, and the antenna gain control module 120 is controlled according to the signal compensation value to perform signal compensation on the vehicle-mounted smart antenna 300, so that the target vehicle can start corresponding signal compensation on the vehicle-mounted smart antenna in time when the target vehicle runs in a road condition environment with a large shielding degree of the vehicle-mounted smart antenna 300, the signal coverage range of the vehicle-mounted smart antenna 300 is enlarged, the stability of the communication performance of the vehicle-mounted smart antenna 300 during the running process is ensured, the communication performance of the vehicle-mounted smart antenna 300 during the running on different road conditions is improved, and the problem that the vehicle-mounted smart antenna 300 loses signals or is interrupted due to the communication performance of the vehicle-mounted smart antenna 300 during the running on different road conditions is avoided.
In one embodiment, controlling the antenna gain control module to perform signal compensation on the vehicle-mounted smart antenna according to the signal compensation value includes: and outputting a signal compensation instruction to the antenna gain control module 120 according to the signal compensation value, so that the antenna gain control module 120 performs signal compensation on the vehicle-mounted smart antenna 300 according to the instruction of the signal compensation instruction.
In one embodiment, as shown in fig. 6, the method further includes step S200.
Step S200, in response to performing the function importing operation, storing the antenna signal attenuation function and the occlusion degree matching function.
Wherein the function importing operation is to import the antenna signal attenuation function and the occlusion degree matching function into the in-vehicle terminal 100. Specifically, the processing module 110 may store the antenna signal attenuation function and the occlusion degree matching function when recognizing that the function importing operation is performed.
In this embodiment, when the processing module 110 identifies the function importing operation, it may store the antenna signal attenuation function and the shielding degree matching function, so as to improve the convenience of adjusting the vehicle-mounted smart antenna.
In a second aspect, a method for adjusting a vehicle-mounted smart antenna is provided, which is described by taking the method as an example applied to the vehicle-mounted central control entertainment module 200 in fig. 1, and includes the following steps:
sending the current vehicle position information to the processing module 110, so that when the processing module 110 receives the current vehicle position information, the processing module 110 determines the current shielding degree of the vehicle-mounted smart antenna 300 according to the current vehicle position information, determines the current signal attenuation value of the vehicle-mounted smart antenna 300 according to the current shielding degree and the antenna signal attenuation function, determines the signal compensation value of the vehicle-mounted smart antenna 300 according to the current signal attenuation value, and controls the antenna gain control module 120 to perform signal compensation on the vehicle-mounted smart antenna 300 according to the signal compensation value; the antenna signal attenuation function is used for representing the corresponding relationship between the shielding degree of the vehicle-mounted smart antenna 300 and the signal attenuation value of the vehicle-mounted smart antenna 300.
In this embodiment, by the above vehicle-mounted smart antenna adjusting method, it is ensured that the target vehicle can start corresponding signal compensation for the vehicle-mounted smart when traveling in a road environment with a large shielding degree of the vehicle-mounted smart antenna 300, and thus the signal coverage of the vehicle-mounted smart antenna 300 is increased, the communication performance of the vehicle-mounted smart antenna 300 when traveling in different road conditions is improved, and the problem that the vehicle-mounted smart antenna 300 loses signals or interrupts communication due to the communication performance of the vehicle-mounted smart antenna 300 when traveling in different road conditions is avoided.
It should be understood that although the various steps in the flowcharts of fig. 2 and 4-6 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2 and 4-6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In a third aspect, as shown in fig. 7, an in-vehicle smart antenna adjusting apparatus is provided, which is applied to the processing module 110 in the in-vehicle terminal 100; the in-vehicle terminal 100 includes a processing module 110 and an antenna gain control module 120; the vehicle-mounted terminal 100 is connected with the vehicle-mounted central control entertainment module 200 through the processing module 110 and is connected with the vehicle-mounted intelligent antenna 300 through the antenna gain control module 120; the apparatus includes an information obtaining module 710, an occlusion degree determining module 720, a signal attenuation value determining module 730, and a signal compensating module 740.
The information acquisition module 710 is used for acquiring current vehicle position information from the vehicle-mounted central control entertainment module; the shielding degree determining module 720 is configured to determine a current shielding degree of the vehicle-mounted smart antenna according to the current vehicle position information; the signal attenuation value determining module 730 is used for determining a current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and the antenna signal attenuation function; the antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna and the signal attenuation value of the vehicle-mounted intelligent antenna; the signal compensation module 740 is configured to determine a signal compensation value of the vehicle-mounted smart antenna according to the current signal attenuation value, and control the antenna gain control module to perform signal compensation on the vehicle-mounted smart antenna according to the signal compensation value.
In one embodiment, as shown in fig. 3, the vehicle-mounted terminal 100 further includes an inertia sensing module 130; the inertial sensing module 130 is connected to the processing module 110, and the vehicle-mounted terminal 100 is further connected to the GNSS antenna 400 of the global navigation satellite system through the processing module 110.
The information obtaining module 710 includes an information obtaining unit, an instruction generating unit, and an information receiving unit.
The information acquisition unit is used for acquiring real-time vehicle position information fed back by the GNSS antenna and real-time vehicle attitude information fed back by the inertial sensing module; the command generating unit is used for generating an information fusion command according to the real-time vehicle position information and the real-time vehicle attitude information and outputting the information fusion command to the vehicle-mounted central control entertainment module; the information fusion instruction is used for instructing the vehicle-mounted central control entertainment module to fuse the real-time vehicle position information and the real-time vehicle attitude information into a high-precision map, and calculating the current vehicle position information according to the fused high-precision map; the information receiving unit receives current vehicle position information in response to position information feedback operation of the in-vehicle central control entertainment module.
In one embodiment, the real-time vehicle location information includes current vehicle longitude and latitude coordinates of a target vehicle configured with the in-vehicle terminal.
In one embodiment, the inertial sensing module comprises an acceleration sensor and an angular velocity sensor; the acceleration sensor and the angular velocity sensor are connected with the processing module; the real-time vehicle attitude information comprises three-axis acceleration information fed back by the acceleration sensor in real time and three-axis angular velocity information fed back by the angular velocity sensor in real time.
In one embodiment, the occlusion degree determining module 720 includes a road condition environment determining unit and an occlusion degree determining unit.
The road condition environment determining unit is used for determining the current road condition environment of a target vehicle provided with a vehicle-mounted terminal according to the current vehicle position information; the shielding degree determining unit is used for matching according to the current road condition environment and the shielding degree matching function to obtain the current shielding degree; the shielding degree matching function is used for representing the corresponding relation between the road condition environment of the target vehicle and the shielding degree of the vehicle-mounted intelligent antenna.
In one embodiment, the apparatus further includes a function storage module.
The function storage module is used for responding to the execution of function import operation and storing an antenna signal attenuation function and a shielding degree matching function; the function importing operation is used for importing the antenna signal attenuation function and the shielding degree matching function into the vehicle-mounted terminal.
In one embodiment, the shielding degree matching function is determined according to an analysis result obtained after characteristic analysis is performed on the road condition placing environment of the preset number of experimental vehicle-mounted intelligent antennas and the corresponding experimental shielding degree.
In one embodiment, the vehicle-mounted smart antenna is a V2X antenna.
In a fourth aspect, a vehicle-mounted intelligent antenna adjusting device is provided, and the method is applied to a vehicle-mounted central control entertainment module 200; the vehicle-mounted terminal 100 is connected with the vehicle-mounted central control entertainment module 200 through the processing module 110 and is connected with the vehicle-mounted intelligent antenna 300 through the antenna gain control module 120; the in-vehicle terminal 100 includes a processing module 110 and an antenna gain control module 120; the device comprises an information sending module.
The information sending module is used for sending current vehicle position information to the processing module, so that when the processing module receives the current vehicle position information, the processing module determines the current shielding degree of the vehicle-mounted intelligent antenna according to the current vehicle position information, determines the current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and an antenna signal attenuation function, determines the signal compensation value of the vehicle-mounted intelligent antenna according to the current signal attenuation value, and controls the antenna gain control module to perform signal compensation on the vehicle-mounted intelligent antenna according to the signal compensation value; the antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna and the signal attenuation value of the vehicle-mounted intelligent antenna.
For specific limitations of the vehicle-mounted smart antenna adjusting device, reference may be made to the above limitations of the vehicle-mounted smart antenna adjusting method, which is not described herein again. All or part of each module in the vehicle-mounted intelligent antenna adjusting device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, an in-vehicle smart antenna adjusting apparatus is provided, and the in-vehicle smart antenna adjusting apparatus may be a terminal, and its internal structure diagram may be as shown in fig. 8. The vehicle-mounted intelligent antenna adjusting device comprises a processor, a memory, a network interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the vehicle-mounted smart antenna tuning device is configured to provide computing and control capabilities. The memory of the vehicle-mounted intelligent antenna adjusting device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the vehicle-mounted intelligent antenna adjusting equipment is used for being connected and communicated with an external terminal through a network. The computer program is executed by a processor to implement a vehicle-mounted smart antenna tuning method. The display screen of the vehicle-mounted intelligent antenna adjusting device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the vehicle-mounted intelligent antenna adjusting device can be a touch layer covered on the display screen, a button, a track ball or a touch pad arranged on a shell of the vehicle-mounted intelligent antenna adjusting device, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the structure shown in fig. 8 is a block diagram of only a portion of the structure relevant to the present application, and does not constitute a limitation on the onboard smart antenna adjustment apparatus to which the present application is applied, and a particular onboard smart antenna adjustment apparatus may include more or less components than those shown in the drawings, or combine certain components, or have a different arrangement of components.
In a fifth aspect, an on-vehicle smart antenna adjusting apparatus is provided, where the on-vehicle smart antenna adjusting apparatus includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of any one of the above-described embodiments of the first aspect and the second aspect when executing the computer program.
A sixth aspect provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of any one of the embodiments of the first aspect and the second aspect.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (10)
1. A vehicle-mounted intelligent antenna adjusting method is characterized in that the method is applied to a processing module in a vehicle-mounted terminal; the vehicle-mounted terminal comprises the processing module and an antenna gain control module; the vehicle-mounted terminal is connected with a vehicle-mounted central control entertainment module through the processing module and is connected with a vehicle-mounted intelligent antenna through the antenna gain control module; the method comprises the following steps:
acquiring current vehicle position information from the vehicle-mounted central control entertainment module;
determining the current shielding degree of the vehicle-mounted intelligent antenna according to the current vehicle position information;
determining a current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and an antenna signal attenuation function; the antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna and the signal attenuation value of the vehicle-mounted intelligent antenna;
and determining a signal compensation value of the vehicle-mounted intelligent antenna according to the current signal attenuation value, and controlling the antenna gain control module to perform signal compensation on the vehicle-mounted intelligent antenna according to the signal compensation value.
2. The method of claim 1, wherein the vehicle terminal further comprises an inertial sensing module; the inertial sensing module is connected with the processing module, and the vehicle-mounted terminal is also connected with a GNSS antenna of a global navigation satellite system through the processing module; the obtaining of the current vehicle position information from the vehicle-mounted central control entertainment module comprises:
acquiring real-time vehicle position information fed back by the GNSS antenna and real-time vehicle attitude information fed back by the inertial sensing module;
generating an information fusion instruction according to the real-time vehicle position information and the real-time vehicle attitude information, and outputting the information fusion instruction to the vehicle-mounted central control entertainment module; the information fusion instruction is used for instructing the vehicle-mounted central control entertainment module to fuse the real-time vehicle position information and the real-time vehicle attitude information into a high-precision map, and calculating the current vehicle position information according to the fused high-precision map;
and receiving the current vehicle position information in response to the position information feedback operation of the vehicle-mounted central control entertainment module.
3. The method of claim 2, wherein the real-time vehicle location information comprises current vehicle longitude and latitude coordinates of a target vehicle configured with the in-vehicle terminal.
4. The method of claim 2, wherein the inertial sensing module comprises an acceleration sensor and an angular velocity sensor; the acceleration sensor and the angular velocity sensor are connected with the processing module; the real-time vehicle attitude information comprises three-axis acceleration information fed back by the acceleration sensor in real time and three-axis angular velocity information fed back by the angular velocity sensor in real time.
5. The method according to claim 1, wherein the determining a current occlusion degree of the on-vehicle smart antenna according to the current vehicle position information comprises:
determining the current road condition environment of a target vehicle configured with the vehicle-mounted terminal according to the current vehicle position information;
matching according to the current road condition environment and the shielding degree matching function to obtain the current shielding degree; and the shielding degree matching function is used for representing the corresponding relation between the road condition environment of the target vehicle and the shielding degree of the vehicle-mounted intelligent antenna.
6. The method of claim 5, further comprising:
storing the antenna signal attenuation function and the occlusion degree matching function in response to performing a function import operation; the function importing operation is used for importing the antenna signal attenuation function and the shielding degree matching function into the vehicle-mounted terminal.
7. The method according to claim 5, wherein the occlusion degree matching function is determined according to an analysis result obtained by performing feature analysis on the road condition environment where the preset number of experimental vehicle-mounted smart antennas are placed and the corresponding experimental occlusion degree.
8. The method of claim 1, wherein the onboard smart antenna is a V2X antenna.
9. A vehicle-mounted intelligent antenna adjusting method is characterized in that the method is applied to a vehicle-mounted central control entertainment module; the vehicle-mounted terminal is connected with the vehicle-mounted central control entertainment module through the processing module and is connected with the vehicle-mounted intelligent antenna through the antenna gain control module; the vehicle-mounted terminal comprises the processing module and the antenna gain control module; the method comprises the following steps:
sending current vehicle position information to the processing module, so that when the processing module receives the current vehicle position information, the processing module determines the current shielding degree of the vehicle-mounted intelligent antenna according to the current vehicle position information, determines the current signal attenuation value of the vehicle-mounted intelligent antenna according to the current shielding degree and an antenna signal attenuation function, determines the signal compensation value of the vehicle-mounted intelligent antenna according to the current signal attenuation value, and controls the antenna gain control module to perform signal compensation on the vehicle-mounted intelligent antenna according to the signal compensation value; the antenna signal attenuation function is used for representing the corresponding relation between the shielding degree of the vehicle-mounted intelligent antenna and the signal attenuation value of the vehicle-mounted intelligent antenna.
10. An in-vehicle smart antenna tuning apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of any one of claims 1 to 8 or the steps of the method of claim 9 are implemented when the computer program is executed by the processor.
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