CN113573276A - Vehicle communication control method, device, vehicle and storage medium - Google Patents
Vehicle communication control method, device, vehicle and storage medium Download PDFInfo
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- CN113573276A CN113573276A CN202110773661.8A CN202110773661A CN113573276A CN 113573276 A CN113573276 A CN 113573276A CN 202110773661 A CN202110773661 A CN 202110773661A CN 113573276 A CN113573276 A CN 113573276A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
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Abstract
The application discloses a Vehicle communication control method, a device, a Vehicle and a storage medium, which are applied to a Vehicle wireless communication (V2X) system, wherein the V2X system is provided with a V2X antenna for signal transmission, and the method comprises the following steps: acquiring driving data of the vehicle, wherein the driving data comprises at least one of road condition data and environment data when the vehicle drives; according to the running data, reliability of communication performance of V2X communication of the vehicle is detected, and a detection result is obtained; determining a V2X antenna gain control strategy of the vehicle according to the detection result; adjusting the V2X antenna gain of the vehicle according to the control strategy. The method can comprehensively adjust the gain of the V2X antenna when the antenna communication of the vehicle V2X is influenced, thereby improving the reliability of the communication and ensuring the driving safety.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a vehicle communication control method and apparatus, a vehicle, and a storage medium.
Background
V2X (Vehicle to event) shows the connection between Vehicle and anything, which mainly includes V2V (Vehicle to Vehicle) Vehicle and Vehicle, V2I (Vehicle to Infrastructure) Vehicle and Infrastructure, V2P (Vehicle to peer) Vehicle and People, V2N (Vehicle to Network) Vehicle and cloud. The vehicle communication technology is a technology for communicating with other surrounding vehicles, people and objects through sensors and network communication technology, and analyzing and deciding according to collected information.
The vehicle can find the existing unknown danger in advance by using the V2X, for example, a blind area exists on a mountain road or an urban road, the vehicle and the vehicle can communicate with each other through the V2X, the vehicle can be known to exist in the opposite direction or a certain blind area direction, and further, the speed reduction, the parking and the like are determined, so that the occurrence probability of traffic accidents is reduced. However, due to the existence of obstacles in the driving road condition, the reliability of the V2X communication is greatly challenged, and when the vehicle is shielded by the obstacles, the transmission of the V2X communication signal is unstable, so that hidden dangers are brought to the driving safety.
Disclosure of Invention
The application provides a vehicle communication control method and device, a vehicle and a storage medium.
In a first aspect, the present application provides a Vehicle communication control method, which is applied to a Vehicle wireless communication (V2X) system, where the V2X system is configured with a V2X antenna for signal transmission, and includes: the method comprises the steps of obtaining driving data of a vehicle, wherein the driving data comprises at least one of road condition data and environment data when the vehicle drives, carrying out reliability detection on communication performance of V2X communication of the vehicle according to the driving data, obtaining a detection result, further determining a V2X antenna gain control strategy of the vehicle according to the detection result, and adjusting V2X antenna gain of the vehicle according to the control strategy.
In a second aspect, the present application provides a Vehicle communication control apparatus, which is applied to a Vehicle wireless communication (V2X) system, where the V2X system is configured with a V2X antenna for signal transmission, and the apparatus includes: the system comprises an acquisition module, a storage module and a display module, wherein the acquisition module is used for acquiring driving data of a vehicle, and the driving data comprises at least one of road condition data and environment data when the vehicle drives; the detection module is used for detecting the reliability of the communication performance of the V2X communication of the vehicle according to the driving data to obtain a detection result; the determining module is used for determining a V2X antenna gain control strategy of the vehicle according to the detection result; and the adjusting module is used for adjusting the gain of the V2X antenna of the vehicle according to the control strategy.
In a third aspect, an embodiment of the present application provides a vehicle, including: a Vehicle to electrical (V2X) antenna; a memory; one or more processors; coupled with the memory; one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to perform the vehicle communication control method described above.
In a fourth aspect, the present application provides a computer-readable storage medium, in which a program code is stored, where the program code is called by a processor to execute the vehicle communication control method provided in the first aspect.
According to the vehicle communication control method, the vehicle communication control device, the vehicle and the storage medium, reliability of communication performance of V2X communication of the vehicle is detected by obtaining driving data of the vehicle and according to the driving data, and then a detection result is obtained, wherein the driving data comprises at least one of road condition data and environment data when the vehicle is driven, and further, according to the detection result, a V2X antenna gain control strategy of the vehicle is determined, and according to the control strategy, V2X antenna gain of the vehicle is adjusted. Therefore, the vehicle can know whether the reliability of the V2X communication is influenced by the obstacles through the analysis of the running data, and further, when the reliability of the V2X communication is influenced, the gain of the V2X antenna is adjusted, so that the quality of the V2X communication is improved, and the driving safety of the vehicle is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a schematic diagram of a vehicle communication control system architecture provided by an embodiment of the present application.
Fig. 2 shows a flow chart of a vehicle communication control method provided by an embodiment of the application.
Fig. 3 shows a flow chart of another vehicle communication control method provided by the embodiment of the application.
Fig. 4 shows a flowchart of the reliability detection step provided in the embodiment of the present application.
Fig. 5 shows a schematic flow chart of another vehicle communication control method provided by the embodiment of the application.
Fig. 6 is a schematic flowchart illustrating an antenna gain adjustment step according to an embodiment of the present application.
Fig. 7 shows a timing chart of a vehicle communication control method according to an embodiment of the present application.
Fig. 8 shows a block diagram of a vehicle communication control device according to an embodiment of the present application.
FIG. 9 shows a block diagram of a vehicle according to an embodiment of the present application.
Fig. 10 illustrates a block diagram of a computer-readable storage medium according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Vehicle to electrical technology (V2X) is expected to realize information interaction between vehicles and all entities that may affect the vehicles, and aims to reduce traffic accidents, alleviate traffic congestion, reduce environmental pollution and provide other information services. For example, when a vehicle ahead outside the driver's field of view stops or decelerates, it is difficult to avoid a rear-end collision because the driver does not know the traffic conditions at a distance, which is why a link traffic accident often occurs on a highway. However, when the vehicle uses the V2V technology, the vehicle can be braked or changed lanes in advance, thereby reducing the occurrence of traffic accidents.
At present, two technical standards commonly used by V2X include Dedicated Short Range Communication (DSRC) and V2X (C-V2X) based on cellular mobile Communication, wherein both V2V technologies use a vehicle-mounted V2V antenna as a component for transceiving Communication data. Since the antenna can transmit and receive signals under the influence of environmental factors, when the vehicle travels on different roads, the V2V antenna can transmit and receive communication information under the influence, which is not favorable for the communication of V2V.
For example, when a vehicle equipped with the V2X technology travels on a mountain road or a traveling tunnel, the communication performance of the V2V antenna of the vehicle may be affected, and there may be a case where there is no time when a V2X communication packet is transmitted and the network packet loss rate is not in a normal range.
In order to solve the above problems, the inventors have made long-term studies to propose a vehicle communication control method provided by an embodiment of the present application, which detects reliability of communication performance by acquiring traveling data of a vehicle and, based on the traveling data, performs communication with V2X of the vehicle, acquires a detection result, further, determines a V2X antenna gain control strategy of the vehicle based on the detection result, and adjusts a V2X antenna gain of the vehicle based on the control strategy. Therefore, the vehicle can adjust the gain of the V2X antenna based on the driving environment, the communication quality of the V2X is improved, and the driving safety is guaranteed. An application scenario of the vehicle communication control method according to the present application will be described first.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a vehicle communication control system architecture suitable for use in an embodiment of the present application. The vehicle communication control method provided by the embodiment of the application can be applied to a vehicle communication control system 400 shown in fig. 1, and the vehicle communication control system 400 comprises a main processor 410, an in-vehicle sensor 420, a network device 430, a V2X communication module 440, a variable gain Low Noise Amplifier (LNA) 450 and a V2X antenna 460.
The vehicle-mounted sensor 420 may include a vehicle-mounted radar 421 and/or a vehicle-mounted camera 422, the vehicle-mounted sensor 420 may be configured to acquire driving data of the vehicle during driving, for example, the vehicle-mounted camera 422 may acquire image information around the vehicle as road condition data, and the main processor 410 may determine whether the vehicle is shielded by a shielding object after acquiring the road condition data from the vehicle-mounted camera 422. The network device 430 may be used for network communication between the vehicle and an external network, where the external network may be a 5G network (5th Generation Mobile Networks) or an Internet of Vehicles (IOV), the network device 430 may acquire a driving position of the vehicle as the environment data through the network, and the main processor 410 may determine a driving scene of the vehicle after acquiring the environment data from the network device 430. Variable gain LNA450 may be used to adjust the gain of V2X antenna 460.
As an embodiment, during the running process of the vehicle, the vehicle-mounted radar 421 and/or the vehicle-mounted camera 422 may acquire the running data around the vehicle and transmit the running data to the main processor 410, and when the main processor 410 analyzes the running data and detects that the V2X communication of the vehicle is affected, the variable gain LNA450 may be controlled to perform antenna gain adjustment on the V2X antenna 460, so as to improve the quality of the V2X communication. Embodiments in the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a schematic flowchart illustrating a vehicle communication control method according to an embodiment of the present application. As will be explained in detail with respect to the flow shown in fig. 2, the vehicle communication control method may specifically include step S110 to step S140.
Step S110: the method comprises the steps of obtaining driving data of a vehicle, wherein the driving data comprise at least one of road condition data and environment data when the vehicle drives.
When the vehicle communicates with the outside through the V2X technology, if the vehicle is in an environment unfavorable for the V2X antenna to receive and transmit information, the communication quality of V2X will be affected, therefore, the running environment of the vehicle can be detected, when the vehicle runs to or is about to run to an environment unfavorable for the V2X communication, for example, when the vehicle runs in a tunnel or is sheltered by more trees around the vehicle, the V2X antenna of the vehicle receives and transmits the communication information, so that the V2X communication unfavorable for the vehicle carries out data transmission, and therefore, the communication quality of V2X can be improved by adjusting the gain of the V2X antenna.
In the embodiment of the application, the driving environment of the vehicle can be detected by acquiring the driving data of the vehicle, wherein the driving data can reflect the road condition around the vehicle in the driving process of the vehicle, the driving data can include at least one of the road condition data and the environment data, and the road condition data can be used for detecting whether obstacles exist around the vehicle, for example, whether other vehicles exist, whether the obstacles are blocked, and the like. The environmental data may be used to determine the scene in which the vehicle is located, e.g., whether it is in a tunnel, mountain road, etc.
As an implementation manner, during the driving process of the vehicle, the vehicle-mounted camera and/or the radar may acquire road condition data of the vehicle, and optionally, the vehicle-mounted camera may acquire visual information around the vehicle as the road condition data. As another embodiment, the environment data of the vehicle may be acquired by a third-party map service provider, for example, a Global Navigation Satellite System (GNSS) is used to acquire the position of the vehicle, and the environment data corresponding to the position of the vehicle on the map is acquired.
Step S120: the reliability of the communication performance is detected for the V2X communication of the vehicle based on the travel data, and the detection result is acquired.
When the running data of the vehicle is acquired, the reliability detection of the communication performance can be performed for the V2X communication of the vehicle based on the running data. Here, the reliability detection means a step for determining whether or not the V2X communication of the vehicle is reliable. As an embodiment, it may be determined whether an obstacle exists around the vehicle based on the road condition data, and if an obstacle exists, the operating parameter of the vehicle V2X communication may be acquired, and the reliability of the V2X communication performance may be detected by determining whether the operating parameter is in a normal range, so as to obtain the detection result.
The working parameters may be messages and packet loss rates in the V2X communication process, for example, whether V2X communication is reliable may be determined by detecting whether the V2X vehicle message is acquired occasionally, and if the V2X vehicle message is acquired occasionally, it may be determined that the V2X communication performance is unreliable. Specifically, when the vehicle performs V2X communication, the V2X communication module of the vehicle needs to exchange and transmit communication data with an external network, and therefore, the reliability of the V2X communication performance can be determined by detecting whether the received and transmitted messages are normal, for example, detecting the captured messages by Cyclic Redundancy Check (CRC) to determine whether the messages are normal, and if the messages are not normal, the V2X communication is unreliable.
As another embodiment, the driving environment of the vehicle may be determined based on the environment data, and when the vehicle is in or about to enter an environment where V2X communication is susceptible to influence, it may be determined whether the environment influences the quality of V2X communication performance, so as to detect the reliability of the V2X communication antenna communication performance.
Step S130: and determining the V2X antenna gain control strategy of the vehicle according to the detection result.
The vehicle V2X antenna gain control strategy refers to a method for adjusting the vehicle V2X antenna gain, and in order to ensure the quality of the vehicle V2X communication, after a reliability detection result of the vehicle V2X communication is obtained, the control strategy of the vehicle V2X antenna gain can be determined according to the detection result. In some embodiments, when the quality of the vehicle's V2X communication is affected, a different control strategy may be determined for the vehicle's V2X antenna gain.
As an embodiment, after the reliability of the communication performance of the V2X communication of the vehicle is detected based on the road condition data, if the V2X communication performance of the vehicle is not reliable, a control strategy may be generated to directly adjust the gain of the V2X antenna of the vehicle, for example, the gain of the V2X antenna in the current state may be increased to a preset gain.
As another embodiment, after the reliability of the communication performance of the V2X communication of the vehicle is detected based on the environment data, if the V2X communication performance of the vehicle is unreliable in the environment to be driven into, a control strategy may be generated, and the gain of the V2X antenna may be specifically adjusted in advance according to the driving environment of the vehicle, for example, the gain of the V2X antenna in the current state may be increased to meet the gain of the vehicle capable of normally performing the V2X communication in the current driving environment.
Step S140: the vehicle's V2X antenna gain is adjusted according to a control strategy.
As one embodiment, the vehicle may adjust the vehicle's V2X antenna gain according to different control strategies. Specifically, the control strategy may acquire the current V2X antenna gain for the vehicle and adjust the V2X antenna gain to a range suitable for the vehicle to communicate V2X using the variable gain LNA based on the current V2X antenna gain.
In the embodiment of the application, the running data of the vehicle is acquired, the reliability of the communication performance of the V2X antenna of the vehicle is detected according to the running data, the detection result is acquired, the V2X antenna gain control strategy of the vehicle is further determined according to the detection result, and the V2X antenna gain of the vehicle is adjusted according to the control strategy. Therefore, when V2X communication caused by different conditions is influenced, the vehicle can make targeted adjustment on the V2X antenna gain, including directly increasing the V2X antenna gain when being shielded by an obstacle and increasing the V2X antenna gain to a gain suitable for V2X communication in the current driving environment when driving into different driving environments, thereby improving the quality of V2X communication and improving the driving safety of the vehicle.
Referring to fig. 3, fig. 3 is a schematic flowchart illustrating another vehicle communication control method according to an embodiment of the present application. As will be explained in detail with respect to the flow shown in fig. 3, the vehicle communication control method may specifically include steps S210 to S250.
Step S210: and acquiring the driving data of the vehicle, wherein the driving data comprises road condition data when the vehicle is driven.
In this embodiment, the specific implementation of step S210 may refer to the description of step S110 provided in the above embodiments, and is not described herein again.
Step S220: and acquiring performance parameters of the V2X communication of the vehicle, wherein the performance parameters are used for representing the reliability of the V2X antenna in network communication.
Considering that the V2X antenna of the vehicle may be interfered when transmitting and receiving communication information if the vehicle encounters an obstacle during driving, thereby affecting the quality of the V2X communication of the vehicle. For this purpose, when the vehicle encounters an obstacle, the performance parameters of the V2X communication of the vehicle are acquired, so that the reliability of the V2X communication is detected based on the performance parameters, so as to ensure the normal operation of the V2X communication.
The performance parameter refers to a parameter of network communication when the vehicle performs network communication using the V2X antenna. As an embodiment, the bandwidth, the time delay, the packet loss rate, the throughput and the like of the network signal transmission may be acquired from the V2X communication module of the vehicle as the performance parameters.
Step S230: and according to the road condition data and the performance parameters, carrying out reliability detection on the communication performance of the V2X communication of the vehicle, and acquiring a detection result.
In some embodiments, since the presence of an obstacle around the vehicle may make the V2X communication reliability greatly challenging, when the vehicle detects the obstacle, the V2X communication of the vehicle may be subjected to reliability detection of the communication performance, and in particular, referring to fig. 4, step S230 may include: step S231 and step S232.
Step S231: and matching the performance parameters with preset parameters according to the road condition data to obtain a matching result.
The preset parameter refers to a parameter of network communication performance when the V2X communication of the vehicle is in a normal working state. The performance parameter may be obtained by a vehicle manufacturer through test analysis before the vehicle leaves the factory, and it is noted that the preset parameter may be a range of values.
As an implementation manner, after acquiring the road condition data, the vehicle may detect whether an obstacle is encountered according to the road condition data, and if the obstacle is encountered, the performance parameter may be matched with a preset parameter to determine whether the V2X communication of the vehicle is reliable, where the detection of the obstacle may be implemented by using a computer vision algorithm.
For example, when a vehicle runs on a road, the vehicle judges that a large number of trees, namely obstacles, exist around the vehicle through the camera, so that the error rate of data transmission in vehicle network communication can be obtained, whether the error rate is within the range of a normal error rate or not can be judged, if the error rate is not within the range of the normal error rate, the performance parameter can be judged to be not matched with the preset parameter, and if the error rate is within the range of the normal error rate, the performance parameter can be judged to be matched with the preset parameter.
Step S232: according to the matching result, if the performance parameter does not match the preset parameter, the communication performance of the V2X communication of the vehicle is unreliable.
As an embodiment, when the vehicle detects that the performance parameter does not match the preset parameter, it may be determined that the communication performance of the V2X communication of the vehicle is not reliable. For example, the vehicle matches the obtained current error rate with a preset error rate, and finally obtains that the current error rate is not in a value range of a normal error rate, so that the communication performance of the V2X communication of the vehicle can be determined to be unreliable.
Step S240: when the detection result is that the communication performance is not reliable, a first control strategy is generated, and the first control strategy is used for instructing to increase the gain of the V2X antenna of the vehicle to a preset gain.
The preset gain is the lowest gain which ensures that the V2X antenna of the vehicle can normally transmit and receive signals. The first control strategy is for the vehicle to directly adjust the V2X antenna gain via the variable gain LNA.
As an embodiment, when the vehicle is obstructed by an obstacle, if it is detected that the V2X communication of the vehicle is in an unreliable state, a first control strategy may be generated for instructing the variable gain LNA to increase the V2X antenna gain of the vehicle to a preset gain.
Step S250: the vehicle's V2X antenna gain is adjusted according to a control strategy.
The antenna gain is increased, the distance covered by signals is increased, but the beam width is narrowed at the same time, and the uniformity of the coverage is reduced. The antenna gain should be selected on the premise that the beam is matched with the target area, and it is not preferable to excessively narrow the vertical plane beam width in order to increase the gain, and for this reason, in the embodiment of the present application, adjustment of the vehicle V2X antenna gain needs to be reasonable.
As an embodiment, when the vehicle acquires the first control strategy, the vehicle may acquire the current gain of the V2X antenna, determine whether the current gain falls within a preset gain range, and adjust the current gain of the V2X antenna to be within the preset gain range if the current gain does not fall within the preset gain range. If the front gain falls within the range of the preset gain, the gain of the V2X antenna of the vehicle is not adjusted any more, so as to avoid the situation that the communication performance of the V2X is worse due to over-adjustment.
In the embodiment of the application, the driving data of the vehicle and the performance parameters of the V2X communication of the vehicle are acquired, the reliability of the communication performance of the V2X communication of the vehicle is detected according to the road condition data and the performance parameters, the detection result is acquired, when the detection result is that the communication performance is unreliable, a first control strategy is generated, and the V2X antenna gain of the vehicle is adjusted according to the control strategy. Therefore, when the vehicle is determined to be shielded by the obstacle based on the road condition data, the reliability of the communication performance of the V2X communication of the vehicle can be detected, and the gain of the V2X antenna can be adjusted according to the detection result, so that the quality of the V2X communication of the vehicle in the driving process is ensured, and the driving safety is facilitated.
Referring to fig. 5, fig. 5 is a schematic flowchart illustrating another vehicle communication control method according to an embodiment of the present application. As will be explained in detail with respect to the flow shown in fig. 5, the vehicle communication control method may specifically include steps S310 to S360.
Step S310: the method comprises the steps of obtaining driving data of a vehicle, wherein the driving data comprise environment data when the vehicle drives.
In the running process of the vehicle, except that the gain of the V2X antenna of the vehicle is adjusted when the vehicle is shielded by an obstacle, whether the V2X communication is affected by a forming scene in which the vehicle enters can be judged in advance in order to guarantee the V2X communication quality of the vehicle in real time, and then the gain of the V2X antenna is adjusted in advance, so that the V2X communication is in an effective and reliable state in real time.
As an embodiment, the vehicle may acquire the environment data by using a GNSS, and optionally, a geographical position where the vehicle is located, that is, a geographical coordinate, an altitude, and the like may be acquired as the environment data by using the GNSS.
In this embodiment, the specific implementation of step S310 may refer to the description of step S110 provided in the above embodiments, and is not described herein again.
Step S320: and determining the driving scene of the vehicle according to the environmental data.
The driving scene refers to the specific environment of the vehicle in the driving process, and may include a highway, an overpass, a dense building, a mountain road, a tunnel, and the like.
As an embodiment, when the vehicle acquires the environmental data, the environmental data may be analyzed to determine the driving scenario. Optionally, the vehicle may obtain the environmental data of the current vehicle from a third-party map service provider, and then determine the driving scene of the vehicle according to the environmental data.
For example, assuming that the current location a is a tunnel B in a map provided by a third-party map service provider, the vehicle may acquire the current location a of the vehicle through GNSS, and query that the location a is the tunnel B in the map provided by the third-party map service provider, so that the vehicle may determine that the driving scene is the tunnel.
Step S330: and matching the driving scene with a preset scene to obtain a matching result.
The preset scene refers to a preset environment in which the vehicle may be located during driving, and the environment may affect the V2X communication of the vehicle, that is, the preset scene is set as a driving scene that adversely affects the V2X communication of the vehicle. The preset scenes can be preset by a vehicle manufacturer, for example, a tester can set some scene sets, and the scene sets can include bridges, forests, tall buildings and the like.
As an implementation manner, when the vehicle determines a driving scene according to the environment data, the driving scene may be matched with a preset scene, and whether the driving scene is in a scene set of the preset scene is determined, and a determination result is output. For example, the vehicle determines that the driving environment where the vehicle is currently located is a tunnel, at this time, it is determined whether the tunnel exists in a scene set of a preset scene, and if the scene of the tunnel exists in the scene set of the preset scene, the matching is correct.
Step S340: according to the matching result, if the driving scene is matched with the preset scene, the communication performance of the V2X communication of the vehicle is unreliable.
As an embodiment, after the matching result of the driving scene and the preset scene is obtained, if the driving scene has the scene the same as the preset scene, it may be determined that the communication performance of the vehicle V2X is unreliable, and if the driving scene does not have the scene the same as the preset scene, it may be determined that the communication performance of the vehicle V2X is reliable.
Step S350: and when the detection result is that the communication performance is unreliable, generating a second control strategy, wherein the second control strategy is used for indicating that the gain of the V2X antenna of the vehicle is adjusted according to the driving scene.
As an embodiment, when the vehicle acquires that the detection result is that the communication performance is unreliable, a targeted control strategy, that is, a second control strategy, may be generated for the driving environment where the vehicle is currently located, so as to adjust the antenna gain of V2X of the vehicle according to the second control strategy.
Step S360: the vehicle's V2X antenna gain is adjusted according to a control strategy.
In some embodiments, the vehicle may adjust the V2X antenna gain of the vehicle by generating a control strategy for the driving environment. Specifically, referring to fig. 6, step S360 may include: step S361 and step S364.
Step S361: the current gain of the V2X antenna of the vehicle is obtained.
Since the communication performance of the vehicle V2X communication is linked to the gain of the V2X antenna, by adjusting the gain of the V2X antenna of the vehicle to change the communication performance of the vehicle V2X communication, the current gain of the V2X antenna of the vehicle can be obtained first, and then the gain can be adjusted based on the current gain. As an embodiment, the current gain of the V2X antenna may be obtained by a variable gain LNA.
Step S362: and determining the relative position of the vehicle according to the driving scene, wherein the relative position is used for representing the spatial position of the vehicle relative to the driving scene.
Considering that the communication coverage of the V2X antenna has a certain bias, the communication capability of the vehicle V2X communication system in different directions will be different. In addition, since the antenna has different characteristics in each radiation direction in space, when the gain of the antenna of the vehicle V2X is adjusted, the gain of the antenna of V2X can be adjusted in a targeted manner according to the relative position by considering the spatial position of the vehicle relative to the driving scene, that is, the relative position.
In one embodiment, when the driving scene of the vehicle is acquired, the vehicle can determine the relative position of the vehicle in the driving scene by locating and map feature matching information. Optionally, if there is a preset obstacle that may affect the transmission and reception of the V2X antenna in the driving scene, when the driving scene where the vehicle is located is obtained, the position of the obstacle may be further obtained, the spatial position of the vehicle relative to the driving scene is determined based on the position of the vehicle and the position of the obstacle in the map, and the adjustment strategy of the V2X antenna gain is determined according to the spatial position, so as to improve the accuracy and effectiveness of the adjustment of the V2X antenna gain. The position of the obstacle is obtained in the current driving scene, and the position can be obtained based on the driving direction and a third-party map service provider, or can be obtained based on real-time environment data modeling, and is not limited herein.
For example, when it is acquired that the vehicle is traveling on a mountain road, possible obstacles (such as a mountain, etc.) in the scene may be further acquired, and at this time, the vehicle may determine that the vehicle body is located at a right position relative to the mountain through the acquired navigation application and positioning.
Step S363: and determining the target gain of the driving scene according to the driving scene and the relative position.
When a vehicle configured with V2X communication is in different driving scenes, the V2X antenna may receive communication information from different directions, but there are cases where the driving environment is not favorable for V2X communication, and for this reason, a target preset scene matching the driving scene may be determined in advance in the different preset scenes, and one V2X antenna gain, that is, a target gain, corresponding to the relative position may be determined in the target preset test scene.
The target gain may be obtained by a tester performing performance tests on the V2X antenna in different preset scenes when the vehicle is produced, for example, in a dense building, V2X communication of the vehicle is affected, which may be specifically represented by that the tester detects that the error rate of V2X communication is higher than a certain threshold, at this time, the gain of the V2X antenna may be adjusted until the V2X communication returns to a normal state, and simultaneously, the gain of the V2X antenna when the V2X communication returns to the normal state is recorded as the target gain, where the target gain may include gain values of the V2X antenna in different directions, which may include a vehicle head direction gain, a vehicle tail direction gain, a left side direction gain, and a right side direction gain, and the gain values in different directions may be set according to relative positions in different driving scenes.
It should be noted that, in general, the higher the gain of the V2X antenna, the better the directivity of signal transmission and reception, the more concentrated the energy, and the narrower the lobe. However, when the gain of the V2X antenna is increased, the signal coverage increases with the distance, and the beam width is narrowed, which results in poor coverage uniformity, so the determination of the target gain of the V2X antenna should be premised on matching the relative positions. In other words, the vehicle needs to determine the target gain according to the relative position, so as to ensure that the gain of the V2X antenna is accurately adjusted.
As an embodiment, after the vehicle determines the relative position, the target gain may be determined as the V2X antenna gain corresponding to the relative position in the target preset test scenario. For example, the vehicle body is determined to be located at the right side of a mountain during the forward movement of the vehicle, and furthermore, the antenna gain of the V2X on the left side of the vehicle can be used as a target gain, so that the antenna gain of the V2X on the left side of the vehicle can be adjusted in a targeted manner, and the influence on the communication quality of the V2X caused by the fact that the vehicle is blocked by the mountain is avoided.
The target preset scene matched with the driving scene can be determined in the preset scene according to the driving scene. And determining the gain corresponding to the target preset test scene as the target gain of the driving scene.
Step S364: and acquiring a gain difference value between the current gain and the target gain.
Step S365: and if the gain difference value is not within the preset difference value range, adjusting the current gain to the target gain.
Because the quality of V2X communication is different in the same driving scene due to different weather or time, a certain tolerance range, that is, a preset difference range, should be considered for adjusting the gain of the V2X antenna, so as to truly and effectively adjust the gain of the V2X antenna.
As an embodiment, after the current gain and the target gain of the V2X antenna are obtained, the current gain and the target gain may be subtracted to obtain a gain difference, and further, it is determined whether the gain difference is within a preset difference range, if the gain difference is not within the preset difference range, it indicates that the difference between the current gain and the target gain is too large, and communication at the current gain is very unfavorable for V2X, so that the current gain of the V2X antenna is adjusted to the target gain by the variable gain LNA.
For example, referring to fig. 7, fig. 7 shows a time chart of a vehicle communication control method provided by an embodiment of the present application, where a vehicle may improve reliability of a V2X communication connection link by increasing a gain of a V2X antenna when the vehicle is shielded by an obstacle during driving according to acquired driving data.
Specifically, the vehicle may acquire road condition data of the vehicle through the vehicle-mounted radar and/or the vehicle-mounted camera, and acquire environment data of the vehicle through the network device, when the main processor of the vehicle receives the road condition data sent by the vehicle-mounted radar and/or the vehicle-mounted camera, the reliability of the communication performance of the V2X communication of the vehicle may be detected according to the road condition data and the performance parameter of the V2X communication of the vehicle, when the detection result is that the communication performance is unreliable, the first control strategy may be generated, and then the gain of the V2X antenna may be adjusted through the variable gain LNA.
Optionally, when the main processor of the vehicle receives the environment data sent by the network device, the driving scenario of the vehicle may be determined according to the environment data, and whether the communication performance of the V2X communication of the vehicle is reliable is determined according to a matching result of the driving scenario and a preset scenario, if the communication performance is not reliable, a second control policy may be generated, and the gain of the V2X antenna of the vehicle is adjusted to a target gain through the variable gain LNA according to the second control policy.
In the embodiment of the application, the driving scene of the vehicle is determined by obtaining environmental data of the vehicle, the driving scene is matched with a preset scene to obtain a matching result, the communication performance of the V2X communication of the vehicle is detected according to the matching result, when the communication performance is unreliable according to the detection result, a corresponding control strategy is generated to adjust the gain of the V2X antenna of the vehicle, and specifically, when the gain difference value between the current gain of the V2X antenna and the target gain is not within the preset difference value range, the current gain is adjusted to the target gain. Therefore, the gain of the V2X antenna can be adaptively and dynamically adjusted according to different driving scenes in the driving process of the vehicle, so that the quality of V2X communication is ensured.
Referring to fig. 8, a block diagram of a vehicle communication control device 500 according to an embodiment of the present application is shown. The vehicle communication control apparatus 500 is applied to a V2X system of a vehicle, and the V2X system is provided with a V2X antenna for signal transmission. The vehicle communication control device 500 includes: an acquisition module 510, a detection module 520, a determination module 530, and an adjustment module 540. The obtaining module 510 is configured to obtain driving data of a vehicle, where the driving data includes at least one of road condition data and environment data when the vehicle is driving; the detection module 520 is used for detecting the reliability of the communication performance of the V2X communication of the vehicle according to the driving data to obtain a detection result; the determining module 530 is configured to determine a V2X antenna gain control strategy of the vehicle according to the detection result; the adjustment module 540 is configured to adjust the antenna gain of the V2X antenna of the vehicle according to a control strategy.
In some embodiments, the driving data may include road condition data, and the detection module 520 may include: the device comprises a first acquisition unit and a first detection unit. Wherein the first obtaining unit is configured to: the method comprises the steps of obtaining performance parameters of V2X communication of a vehicle, wherein the performance parameters are used for representing the reliability of the V2X antenna in network communication, and a first detection unit is used for: and according to the road condition data and the performance parameters, carrying out reliability detection on the communication performance of the V2X communication of the vehicle, and acquiring a detection result.
In some embodiments, the first detection unit may be specifically configured to: matching the performance parameters with preset parameters according to the road condition data to obtain a matching result; if the performance parameter does not match the preset parameter according to the matching result, the communication performance of the V2X antenna of the vehicle is not reliable,
the determining module 530 may be specifically configured to: and when the detection result is that the communication performance is not reliable, generating a first control strategy, wherein the first control strategy is used for instructing to increase the gain of the V2X antenna of the vehicle to a preset gain.
In some embodiments, the driving data may include environmental data, and the detection module 520 may include: the device comprises a first determining unit and a second acquiring unit. Wherein the first determining unit may be configured to: determining a driving scene of the vehicle according to the environmental data; matching a driving scene with a preset scene to obtain a matching result; according to the matching result, if the driving scene is matched with the preset scene, the communication performance of the V2X communication of the vehicle is unreliable.
The determining module 530 may be further specifically configured to: and when the detection result is that the communication performance is unreliable, generating a second control strategy, wherein the second control strategy is used for indicating that the gain of the V2X antenna of the vehicle is adjusted according to the driving scene.
In some embodiments, the determining module 530 may include: the device comprises a third acquisition unit, a second determination unit, a fourth acquisition unit and an adjustment unit. Wherein the third obtaining unit is configured to: acquiring the current gain of a V2X antenna of the vehicle; the second determination unit is configured to: determining a target gain of a driving scene according to the driving scene; the fourth acquisition unit is configured to: acquiring a gain difference value between the current gain and a target gain; the adjusting unit is used for: and if the gain difference value is not within the preset difference value range, adjusting the current gain to the target gain.
In some embodiments, the second determining unit may be specifically configured to: according to the driving scene, determining a target preset scene matched with the driving scene in the preset scene; and determining the gain corresponding to the target preset test scene as the target gain of the driving scene.
In some embodiments, the driving data may include environmental data, and the obtaining module 510 may be specifically configured to: acquiring the current position of a vehicle in the running process of the vehicle; and acquiring environment data corresponding to the current position as driving data according to the current position, wherein the environment data at least comprises the geographic coordinates of the vehicle.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses and modules may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. In the several embodiments provided in the present application, the coupling between the modules may be electrical, mechanical or other type of coupling.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
In the embodiment of the application, the driving data of the vehicle is acquired, the reliability of the communication performance of the V2X antenna of the vehicle is detected according to the driving data, the detection result is acquired, further, the V2X antenna gain control strategy of the vehicle is determined according to the detection result, and the V2X antenna gain of the vehicle is adjusted according to the control strategy. Therefore, when V2X communication caused by different conditions is influenced, the vehicle can adjust the gain of the V2X antenna in a targeted manner, wherein the gain of the V2X antenna is directly increased when the vehicle is shielded by an obstacle, and the gain of the V2X antenna is increased to a gain suitable for V2X communication in the current driving environment when the vehicle drives into different driving environments, so that the quality of V2X communication is improved, and the driving safety of the vehicle is improved.
Referring to fig. 9, a structural block diagram of a vehicle according to an embodiment of the present application is shown. The vehicle 600 of the present application may include one or more of the following components: a processor 610, a memory 620, a V2X antenna 630, and one or more applications, wherein the one or more applications may be stored in the memory 620 and configured to be executed by the one or more processors 610, the one or more programs configured to perform the methods as described in the foregoing method embodiments.
The processor 610 may include one or more processing cores. The processor 610, using various interfaces and connections throughout the vehicle 600, performs various functions of the vehicle 600 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 620 and invoking data stored in the memory 620. Alternatively, the processor 610 may be implemented in hardware using at least one of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 610 may integrate one or more of a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a modem, and the like. Wherein, the CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing display content; the modem is used to handle wireless communications. It is understood that the modem may not be integrated into the processor 610, but may be implemented by a communication chip.
The Memory 620 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). The memory 620 may be used to store instructions, programs, code sets, or instruction sets. The memory 620 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for implementing at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing various method embodiments described below, and the like. The storage data area may also store data created during use of the vehicle 600 (e.g., phone books, audio-visual data, chat log data), and the like.
Referring to fig. 10, a block diagram of a computer-readable storage medium according to an embodiment of the present application is shown. The computer-readable storage medium 700 has stored therein program code that can be called by a processor to execute the methods described in the above-described method embodiments.
The computer-readable storage medium 700 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. Alternatively, the computer-readable storage medium 800 includes a non-volatile computer-readable storage medium. The computer readable storage medium 700 has storage space for program code 810 to perform any of the method steps of the method described above. The program code can be read from or written to one or more computer program products. The program code 710 may be compressed, for example, in a suitable form.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A Vehicle communication control method applied to a Vehicle wireless communication (V2X) system, the V2X system being configured with a V2X antenna for signal transmission, the method comprising:
acquiring driving data of a vehicle, wherein the driving data comprises at least one of road condition data and environment data when the vehicle drives;
according to the running data, reliability of communication performance of V2X communication of the vehicle is detected, and a detection result is obtained;
determining a V2X antenna gain control strategy of the vehicle according to the detection result; and
adjusting the V2X antenna gain of the vehicle according to the control strategy.
2. The method according to claim 1, wherein the driving data includes road condition data, and the detecting the reliability of the communication performance of the V2X communication of the vehicle according to the driving data to obtain the detection result comprises:
acquiring performance parameters of V2X communication of the vehicle, wherein the performance parameters are used for representing the reliability of the V2X antenna in network communication; and
and according to the road condition data and the performance parameters, carrying out reliability detection on the communication performance of the V2X communication of the vehicle, and obtaining a detection result.
3. The method according to claim 2, wherein the detecting reliability of communication performance of the V2X communication of the vehicle according to the road condition data and the performance parameters to obtain a detection result comprises:
matching the performance parameters with preset parameters according to the road condition data to obtain a matching result;
according to the matching result, if the performance parameter is not matched with a preset parameter, the communication performance of the V2X communication of the vehicle is unreliable;
the determining of the V2X antenna gain control strategy of the vehicle according to the detection result comprises the following steps:
and when the detection result is that the communication performance is not reliable, generating a first control strategy, wherein the first control strategy is used for instructing to increase the gain of the V2X antenna of the vehicle to a preset gain.
4. The method according to claim 1, wherein the driving data includes environmental data, and the detecting the reliability of the communication performance of the V2X communication of the vehicle according to the driving data and obtaining the detection result includes:
determining a driving scene of the vehicle according to the environment data;
matching the driving scene with a preset scene to obtain a matching result; and
according to the matching result, if the driving scene is matched with a preset scene, the communication performance of the V2X antenna of the vehicle is unreliable;
the determining of the V2X antenna gain control strategy of the vehicle according to the detection result comprises the following steps:
and when the detection result is that the communication performance is unreliable, generating a second control strategy, wherein the second control strategy is used for indicating that the gain of the V2X antenna of the vehicle is adjusted according to the driving scene.
5. The method of claim 4, wherein the adjusting the V2X antenna gain of the vehicle according to the driving scenario comprises:
obtaining a current gain of a V2X antenna of the vehicle;
determining the relative position of the vehicle according to the driving scene, wherein the relative position is used for representing the spatial position of the vehicle relative to the driving scene;
determining a target gain of the driving scene according to the driving scene and the relative position;
obtaining a gain difference value between the current gain and the target gain; and
and if the gain difference value is not within the preset difference value range, adjusting the current gain to the target gain.
6. The method of claim 5, wherein determining the target gain for the driving scenario from the relative position of the driving scenario comprises:
according to the driving scenes, determining a target preset scene matched with the driving scenes in the preset scenes; and
and determining the gain of the V2X antenna corresponding to the relative position in the target preset test scene as the target gain of the driving scene.
7. The method of claim 4, wherein the obtaining travel data for the vehicle comprises:
acquiring the current position of a vehicle in the running process of the vehicle; and
and acquiring environment data corresponding to the current position as driving data according to the current position, wherein the environment data at least comprises the geographic coordinates of the vehicle.
8. A Vehicle communication control apparatus applied to a Vehicle wireless communication (V2X) system, the V2X system being equipped with a V2X antenna for signal transmission, the apparatus comprising:
the acquisition module is used for acquiring the driving data of the vehicle, wherein the driving data comprises at least one of road condition data and environment data when the vehicle drives;
the detection module is used for detecting the reliability of the communication performance of the V2X communication of the vehicle according to the running data to obtain a detection result;
the determining module is used for determining a V2X antenna gain control strategy of the vehicle according to the detection result; and
and the adjusting module is used for adjusting the V2X antenna gain of the vehicle according to the control strategy.
9. A vehicle, characterized by comprising:
a Vehicle to electrical (V2X) antenna;
a memory;
one or more processors coupled with the memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to perform the method of any of claims 1-7.
10. A computer-readable storage medium, having stored thereon program code that can be invoked by a processor to perform the method according to any one of claims 1 to 7.
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