CN116996134A

CN116996134A - Vehicle antenna performance simulation determination method and device, electronic equipment and storage medium

Info

Publication number: CN116996134A
Application number: CN202311045630.6A
Authority: CN
Inventors: 余松; 郭迪军; 邓文山; 蔺承果; 赵瑞
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2023-11-03

Abstract

The application provides a vehicle antenna performance simulation determination method, a device, electronic equipment and a storage medium, wherein the method is used for determining the antenna performance of a simulation antenna to be tested at different positions in a simulation map scene based on an antenna power distribution diagram output by a preset simulation tool by acquiring a preset simulation running path, simulation topographic data of the simulation map scene, a to-be-tested simulation antenna pattern of the to-be-tested simulation vehicle and a reference antenna pattern of a reference antenna and inputting the to-be-tested simulation antenna pattern into the preset simulation tool.

Description

Vehicle antenna performance simulation determination method and device, electronic equipment and storage medium

Technical Field

The application relates to the technical field of vehicles, in particular to a vehicle antenna performance simulation determining method and device, electronic equipment and a storage medium.

Background

V2X, vehicle to everything, is a new generation of information communication technology that enables the omnidirectional connection and communication of vehicles with surrounding vehicles, people, traffic infrastructure, networks, and the like. External information input is provided for the vehicle through a V2X wireless information interaction mode, the defect that an intelligent driving related sensor (millimeter wave radar, laser radar, camera) is insufficient in viewing distance is overcome, the problem of information acquisition under special scenes such as non-viewing distance conditions and severe weather environments is solved, effective complementation is formed with the intelligent of a bicycle, and development of automatic driving is promoted.

The antenna is an indispensable component in V2X communication, has very important function, and provides a needed coupling channel for electromagnetic wave propagation between a transmitter and a receiver. For the vehicle-mounted V2X antenna, due to the electromagnetic wave receiving and transmitting principle of the antenna, the antenna is easy to be shielded by obstacles in the environment, so that signal attenuation is caused, and the communication effect is affected. In order to understand the antenna performance of the vehicle-mounted V2X antenna, the actual vehicle test is often performed in a road test (road test) based manner at the present stage, and the manner has high cost and large manpower requirement.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention provides a vehicle antenna performance simulation determining method, apparatus, electronic device and storage medium, so as to solve the technical problems of high cost and large manpower requirement in the above-mentioned manner of performing the antenna performance test of the vehicle-mounted V2X antenna by drive test.

The invention provides a vehicle antenna performance simulation determination method, which comprises the following steps: obtaining data to be simulated, wherein the data to be simulated comprises a preset simulation running path, simulation topographic data of a simulation map scene, a to-be-simulated antenna pattern of a to-be-simulated vehicle and a reference antenna pattern of a reference antenna, and the reference antenna is arranged at least one preset position in the simulation map scene; inputting the data to be simulated into a preset simulation tool, simulating the to-be-simulated vehicle to run in the simulation map scene according to the preset simulation running path, obtaining antenna simulation power data of different map positions corresponding to a plurality of target running positions, and obtaining an antenna power distribution diagram after the running is completed, wherein the antenna power distribution diagram represents antenna simulation power of the to-be-simulated antenna at different positions in the simulation map scene, and the to-be-simulated antenna is an antenna of the to-be-simulated vehicle; and determining the antenna performances of the to-be-detected simulation antenna at different positions in the simulation map scene based on the antenna power distribution diagram.

In an embodiment of the present invention, obtaining simulated terrain data of a simulated map scene includes: acquiring initial map data of the simulated map scene; determining shielding relation information among all buildings in the simulated map scene according to the initial map data; converting the initial map data into simulated map data, the simulated map data comprising building information for each building in the simulated map scene, the building information comprising at least one of building height, building material, building structure; and generating the simulated terrain data based on the occlusion relation information and the simulated map data.

In one embodiment of the present invention, before generating the simulated terrain data based on the occlusion relation information and the simulated map data, the method comprises: and modifying building information of at least one building to update the simulation map data with the modified simulation map data.

In an embodiment of the present invention, if the position of the reference antenna in the simulated map scene is a fixed position, the preset position is an intersection position in the simulated map scene, and configuration parameters of the reference antenna are preconfigured, where the configuration parameters include a downtilt angle, an azimuth angle, a transmitting power, a working frequency and an antenna height.

In an embodiment of the present invention, if the position of the reference antenna in the simulated map scene is a movable position, simulating the running of the simulated vehicle to be tested in the simulated map scene according to the preset simulated running path to obtain antenna simulated power data of different map positions corresponding to a plurality of target running positions, including: acquiring real-time positions and configuration parameters of the reference antenna corresponding to each target driving position in the driving process of the to-be-detected simulation vehicle in the simulation map scene according to the preset simulation driving path, wherein the configuration parameters comprise a downward inclination angle, an azimuth angle, a transmitting power, a working frequency and an antenna height; determining antenna simulation power data of different map positions corresponding to a target running position according to the simulation terrain data, the to-be-detected simulation antenna pattern, the reference antenna pattern, the target running position, the real-time position and the configuration parameter; and taking the antenna simulation power data of different map positions corresponding to each target driving position as the antenna simulation power data of different map positions corresponding to a plurality of target driving positions.

In an embodiment of the present invention, determining antenna performance of the to-be-measured simulation antenna at different positions in the simulation map scene based on the antenna power distribution map includes: and determining the antenna performance of the to-be-tested simulation antenna at different positions in the simulation map scene based on the antenna simulation power and preset power performance mapping relation of the to-be-tested simulation antenna at different positions in the simulation map scene.

In an embodiment of the present invention, the preset power performance mapping relationship includes a mapping relationship between different antenna simulation powers and preset antenna performance levels, and after determining antenna performances of the to-be-tested simulation antenna at different positions in the simulation map scene based on the antenna power distribution map, the method further includes: if the antenna performance level is smaller than a preset level threshold, determining the position in the simulated map scene corresponding to the antenna performance level as a concerned position, wherein the antenna performance level is obtained based on the antenna performance; converting the attention position information of all attention positions in the simulation map scene into the real position information of the real positions in the real map scene, wherein the real map scene is a real-world map scene corresponding to the simulation map scene; and generating a road measurement key prompt based on all real position information so as to prompt a real vehicle to perform key test on the real position when a real scene is in road, wherein the real vehicle is a real-world vehicle corresponding to the simulation vehicle to be tested.

In one embodiment of the present invention, generating a drive test point hint based on all of the real location information includes: acquiring an electromagnetic wave ray distribution diagram of the concerned position output by the preset simulation tool; correlating the electromagnetic wave ray distribution map with real position information corresponding to the concerned position to obtain a correlation between the electromagnetic wave ray distribution map and the real position information; and generating a road measurement point prompt based on all the real position information, all the electromagnetic wave ray distribution diagrams and the association relation.

In an embodiment of the present invention, the to-be-detected simulation antenna of the to-be-detected simulation vehicle is a receiving antenna, and the reference antenna is a transmitting antenna; or the to-be-detected simulation antenna of the to-be-detected simulation vehicle is a transmitting antenna, and the reference antenna is a receiving antenna.

The embodiment of the invention also provides a device for determining the performance simulation of the vehicle antenna, which comprises the following steps: the system comprises an acquisition module, a simulation control module and a simulation control module, wherein the acquisition module is used for acquiring data to be simulated, the data to be simulated comprises a preset simulation running path, simulation terrain data of a simulation map scene, a to-be-simulated antenna pattern of a to-be-simulated vehicle and a reference antenna pattern of a reference antenna, and the reference antenna is arranged at least one preset position in the simulation map scene; the simulation module is used for inputting the data to be simulated into a preset simulation tool, simulating the to-be-simulated vehicle to run in the simulation map scene according to the preset simulation running path to obtain antenna simulation power data of different map positions corresponding to a plurality of target running positions, and obtaining an antenna power distribution diagram after the running is completed, wherein the antenna power distribution diagram represents the antenna simulation power of the to-be-simulated antenna at different positions in the simulation map scene, and the to-be-simulated antenna is an antenna of the to-be-simulated vehicle; and the determining module is used for determining the antenna performances of the to-be-detected simulation antenna at different positions in the simulation map scene based on the antenna power distribution diagram.

The embodiment of the invention also provides electronic equipment, which comprises: one or more processors; storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement a method as provided in any of the embodiments above.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor of a computer, causes the computer to perform the method provided by any one of the embodiments above.

The invention has the beneficial effects that: according to the vehicle antenna performance simulation determination method, the device, the electronic equipment and the storage medium, the method is used for determining the antenna performance of the simulation antenna to be tested at different positions in the simulation map scene based on the antenna power distribution diagram output by the preset simulation tool by acquiring the preset simulation driving path, the simulation topographic data of the simulation map scene, the simulation antenna pattern to be tested of the simulation vehicle to be tested and the reference antenna pattern of the reference antenna and inputting the simulation antenna pattern to the preset simulation tool, so that a solution for realizing antenna performance determination in a simulation mode is provided, part of road tests can be replaced, the manpower requirements are reduced, and the cost is lowered.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a flow chart illustrating a vehicle antenna performance simulation determination method in accordance with an exemplary embodiment of the present application;

FIG. 2 is a schematic diagram of a simulated map scene shown in accordance with an exemplary embodiment of the present application;

FIG. 3 is a schematic diagram of a reference antenna pattern shown in accordance with an exemplary embodiment of the present application;

FIG. 4 is a schematic diagram of a simulated antenna pattern to be tested, as shown in an exemplary embodiment of the application;

FIG. 5 is a schematic illustration of a predetermined simulated travel path shown in an exemplary embodiment of the present application;

fig. 6 is a schematic view of an electromagnetic wave ray distribution diagram shown in an exemplary embodiment of the present application;

Fig. 7 is a schematic view showing an electromagnetic wave ray distribution diagram of a simulated vehicle to be tested traveling to a certain position according to an exemplary embodiment of the present application;

FIG. 8 is a flow chart illustrating a particular vehicle antenna performance simulation determination method in accordance with an exemplary embodiment of the present application;

FIG. 9 is a block diagram of a vehicle antenna performance simulation determination apparatus shown in an exemplary embodiment of the present application;

FIG. 10 is a block diagram of a particular vehicle antenna performance simulation determination apparatus shown in accordance with an exemplary embodiment of the present application;

fig. 11 shows a schematic diagram of a computer system suitable for use in implementing an embodiment of the application.

Detailed Description

Further advantages and effects of the present application will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.

It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In the following description, numerous details are set forth in order to provide a more thorough explanation of embodiments of the present application, it will be apparent, however, to one skilled in the art that embodiments of the present application may be practiced without these specific details, in other embodiments, well-known structures and devices are shown in block diagram form, rather than in detail, in order to avoid obscuring the embodiments of the present application.

Referring to fig. 1, fig. 1 is a flowchart illustrating a vehicle antenna performance simulation determination method according to an exemplary embodiment of the present application. As shown in fig. 1, in an exemplary embodiment, the vehicle antenna performance simulation determination method at least includes steps S110 to S130, which are described in detail as follows:

step S110, obtaining data to be simulated.

The data to be simulated comprises a preset simulated driving path, simulated terrain data of a simulated map scene, a to-be-simulated antenna pattern of a to-be-simulated vehicle and a reference antenna pattern of a reference antenna, wherein the reference antenna is arranged at least one preset position in the simulated map scene. The simulation antenna to be tested of the simulation vehicle to be tested is a receiving antenna, and the reference antenna is a transmitting antenna; or the simulation antenna to be tested of the simulation vehicle to be tested is a transmitting antenna, and the reference antenna is a receiving antenna.

In one embodiment, obtaining simulated terrain data for a simulated map scene includes: acquiring initial map data of a simulated map scene; determining shielding relation information among all buildings in the simulated map scene according to the initial map data; converting the initial map data into simulated map data, wherein the simulated map data comprises building information of each building in a simulated map scene, and the building information comprises at least one of building height, building materials and building structures; and generating simulated terrain data based on the shielding relation information and the simulated map data. That is, a real map scene of a real world area requiring drive test and the real map scene data can be acquired by determining the real world area, the real map scene data is converted into initial map data which can be identified by a preset simulation tool, and simulation terrain data of a simulation map scene is generated based on the initial map data. The building is understood to be a building, a pier, a wall, etc. having a certain height, and is not simply referred to as an artificially constructed object, but is a barrier that shields electromagnetic waves of an antenna.

The determination of occlusion relationship information may be accomplished in a manner known to those skilled in the art, by data format conversion rules between different formats of data for converting the initial map data to simulated map data, or by other manners known to those skilled in the art.

In this embodiment, before generating simulated terrain data based on occlusion relation information and simulated map data, the method includes: and modifying building information of at least one building to update the simulation map data with the modified simulation map data. Therefore, the vehicle antenna performance simulation determination method provided by the embodiment also supports modification of the simulated terrain data of the simulated map scene.

Because the real map scene data of the real world is not easy to obtain, and the obstacles in the real scene may change, such as a new building, at this time, the real map scene data may not be updated in time, so that the building information of the building may be modified, thereby conforming to the scene in actual driving.

In another possible situation, since the real map scene data is difficult to obtain, in order to simulate the performance of the vehicle antenna, the simulation terrain data obtained by the basic real map scene data can be adjusted and modified to obtain a plurality of simulation map scenes, so as to enrich the test scenes of the simulation antenna to be tested of a certain simulation vehicle to be tested. To this end, in one embodiment, before generating simulated terrain data based on occlusion relationship information and simulated map data, the method includes: and configuring building heights, building materials and building structures to obtain new buildings, adding building information of the new buildings into the simulation map data, updating the simulation map data by the added simulation map data, and performing simulation processing by the updated simulation map data.

It will be appreciated that in making the modification of the building information, the modification may be by modifying any one or more of building height, building material, building structure.

Taking a real map scene as an example of a certain park, taking a map database in the certain park, firstly acquiring a map in the park, converting the urban database through software, outputting a terrain database file (simulated terrain data) required by simulation software, wherein the file can be used for checking the heights of different buildings and the materials of the buildings, usually defaulting to a brick structure of 10mm, and modifying and creating the structures, the heights, the materials and the like of the buildings, and meanwhile, the map database can judge the occlusion relation (occlusion relation information) among the geometries through preprocessing to generate a new target file (simulated terrain data file), and referring to fig. 2, fig. 2 is a schematic diagram of a simulated map scene shown in an exemplary embodiment of the application, wherein the file is a preprocessed map database, and the map database comprises simulated terrain data and can be used for simulation.

In an embodiment, before the to-be-simulated antenna pattern and the reference antenna pattern in the to-be-simulated data are obtained, parameter configuration needs to be performed on the to-be-simulated antenna on the to-be-simulated vehicle in advance, such as configuration of the working frequency and azimuth angle of the to-be-simulated antenna, and parameter configuration of the reference antenna, such as configuration of the working frequency, downtilt angle, azimuth angle, transmitting power, antenna height and the like of the reference antenna. The method comprises the steps of obtaining a to-be-tested simulation antenna pattern based on the to-be-tested simulation antenna after parameter configuration, and obtaining a reference antenna pattern based on the reference antenna after parameter configuration.

In an embodiment, if the position of the reference antenna in the simulated map scene is a fixed position, the preset position is an intersection position in the simulated map scene, and configuration parameters of the reference antenna are preconfigured, where the configuration parameters include a downtilt angle, an azimuth angle, a transmitting power, a working frequency and an antenna height. At this time, the reference antenna is preset at a fixed position in the simulation map scene, and the moving path is not configured for the reference antenna in the simulation process. In this embodiment, the intersection position is taken as an example, and the intersection position can be set at other marking positions.

In another embodiment, if the position of the reference antenna in the simulated map scene is a movable position, simulating the running of the simulated vehicle to be tested in the simulated map scene according to a preset simulated running path to obtain antenna simulated power data of different map positions corresponding to a plurality of target running positions, including: acquiring real-time positions and configuration parameters of a reference antenna corresponding to each target driving position in the driving process of a to-be-detected simulation vehicle in a simulation map scene according to a preset simulation driving path, wherein the configuration parameters comprise a downward inclination angle, an azimuth angle, a transmitting power, a working frequency and an antenna height; determining antenna simulation power data of different map positions corresponding to a target running position according to simulation terrain data, a to-be-detected simulation antenna pattern, a reference antenna pattern, the target running position, the real-time position and configuration parameters; and taking the antenna simulation power data of different map positions corresponding to each target driving position as the antenna simulation power data of different map positions corresponding to a plurality of target driving positions. Because the antenna simulation power data of different map positions can be influenced by the position relation between the receiving antenna and the transmitting antenna, if the reference antenna moves, the relevant data of the reference antenna after the movement, such as the position, a new direction diagram and the like, are updated, so that the accuracy of the finally output antenna power distribution diagram is ensured. In this embodiment, the reference antenna may be an antenna of a reference vehicle traveling in a simulated map scene.

In this embodiment, if the subsequently obtained antenna power distribution diagram does not satisfy the preset verification rule (may be verified by a preset model of a preset simulation tool) after verification, the vehicle antenna performance simulation determination may be performed again by adjusting the configuration parameters of the reference antenna. The preset verification rule may be determined in the art based on physical principles, working experience, and the like, for example, when the vehicle drives away from the reference antenna, the received power decreases, and when the vehicle drives towards the reference antenna, the received power increases, if the obtained antenna power distribution diagram is obviously found not to meet the rule, it is indicated that the obtained antenna power distribution diagram has a problem, and a fault removal attempt may be performed by adjusting configuration parameters of the reference antenna, so that the subsequently obtained antenna power distribution diagram is correct.

Taking a reference antenna as an transmitting antenna, taking an RSU (intelligent Road Side Unit) antenna as an transmitting antenna as an example, defining the RSU antenna as a base station antenna during simulation, wherein the antenna works at 5.915GHz frequency and is an omnidirectional antenna of a horizontal plane, a directional diagram of the transmitting antenna is designated as directional diagram data of the RSU antenna, and the transmitting antenna is defined by using an Azimuth angle and a Downtilt: azimuth=0° indicates north, 0 to 180 ° toward the east, 180 to 360 ° toward the west; downtilt=0°, positive values indicate downward and negative values indicate upward. The RSU antenna is placed at the intersection of the simulated map scene, the height of the antenna is set to 3m, and it is assumed that the RSU antenna is oriented north in the X-axis direction, so Azimuth is set by default 0 °. The transmit power is set to 10W by default and the operating frequency is set to 5915MHz. Referring to fig. 3, fig. 3 is a schematic diagram of a reference antenna pattern according to an exemplary embodiment of the present application. Total Realised gain in fig. 3 is the total obtainable gain in dBi. The above values of the operating frequency, azimuth angle and downtilt angle are merely examples, and may be set as required by those skilled in the art. Of course, the pattern of the transmitting antenna (reference antenna pattern) may be expressed in other gain description units, and those skilled in the art may choose the pattern as required. The total obtainable gain in the reference antenna pattern as shown in fig. 3 varies from the origin of coordinates to the value of four circles, the outermost contour (the circle with the largest diameter) approaching 10dBi. The reference antenna pattern can be obtained by a person skilled in the art based on existing related art means, and fig. 3 is only an example.

For example, the to-be-detected simulation antenna is a whole V2X antenna of the to-be-detected simulation vehicle, the to-be-detected simulation antenna is taken as a receiving antenna as an example, and the simulation analysis is carried out by taking a pattern when the V2X antenna works at 5915MHz frequency as an example, so as to obtain a 3D pattern of the whole V2X antenna. Since the vehicle is modeled with the vehicle tail facing the X direction when the simulation software reads the antenna pattern data, the relative coordinate system, azimuth=0°, is used to indicate that the antenna X axis is facing eastward, i.e., the vehicle tail is facing eastward (note: the receive and transmit antenna Azimuth settings are not the same). Here, when the whole vehicle V2X antenna is operated at 5915MHz frequency as a receiving antenna, the receiving power distribution of different areas in the simulated map scene is obtained assuming that the vehicle head faces four directions of west (azimuth=0°), south (azimuth=90°), east (azimuth=180°), north (azimuth=270°) and RSU antenna is used as a transmitting antenna. Referring to fig. 4, fig. 4 is a schematic diagram of a to-be-tested simulation antenna pattern according to an exemplary embodiment of the present application. Total gain in FIG. 4 is the Total gain in dBi. The values of the above operating frequency and azimuth angle are only examples, and may be set as required by those skilled in the art. Of course, the pattern of the receiving antenna (the pattern of the to-be-detected simulation antenna) can be expressed by other gain description units, and can be selected by those skilled in the art according to the needs. The to-be-tested simulation antenna pattern can also comprise a vehicle model, and the to-be-tested simulation antenna pattern is calculated based on the vehicle model and the whole vehicle antenna. The total gain value of the peaks (protrusions) diffused to the outside in the pattern of the simulation antenna to be tested is approximately 10dBi as shown in fig. 4. The simulated antenna pattern to be tested can be obtained by a person skilled in the art based on the prior art means, and fig. 4 is only an example.

The preset simulation driving path can be planned in advance by a person skilled in the art according to the need and is used for representing the driving path of the simulation vehicle to be tested in the simulation map scene. The preset simulation driving path at least comprises a starting point, a driving process key point and an ending point.

Referring to fig. 5, fig. 5 is a schematic diagram of a preset simulated driving path according to an exemplary embodiment of the present application. As shown in fig. 5, a curve is planned as a virtual predicted path (preset simulated travel path) in the simulated map scene shown in fig. 2. When a plurality of preset simulation running paths exist, the preset simulation running paths can be identified and distinguished by taking the arrow in fig. 5 as a vehicle departure point and a vehicle destination point, the path identification of the preset simulation running paths in fig. 5 is Route 0, the intersection where the arrow is located is taken as a preset position Site 1, and the position is provided with a reference antenna Site 1antenna 1.

Step S120, inputting data to be simulated into a preset simulation tool, simulating the to-be-tested simulation vehicle to run in a simulation map scene according to a preset simulation running path, obtaining antenna simulation power data of different map positions corresponding to a plurality of target running positions, and obtaining an antenna power distribution diagram after the running is completed.

The preset simulation tool can be simulation software supporting multiple physical fields, such as Altair Feko, and is mainly used in the field of electromagnetic simulation analysis and is used for supporting functions of model construction, antenna simulation analysis, electric wave propagation analysis and the like.

Antenna simulation power data of different map positions corresponding to the target driving position can be obtained by processing a preset simulation tool, and the specific determination method is not limited herein.

The antenna power profile may be generated by the preset simulation tool. The antenna power distribution diagram represents antenna simulation power of the to-be-tested simulation antenna at different positions in a simulation map scene, and the to-be-tested simulation antenna is an antenna of the to-be-tested simulation vehicle.

With continued reference to fig. 5, the vehicle travel path defined by the embodiment shown in fig. 5 is illustrated as counterclockwise. After defining the path, azimuth angle 0 ° means that the antenna beam is directed to the right, also to the right when the vehicle is travelling along the path. The Azimuth angle 90 ° means that the X direction points to the front of the driving path, and the tail of the introduced V2X antenna pattern faces to the X direction, so that the Azimuth of the receiving antenna should be modified to 270 ° to indicate that the vehicle head moves along the front of the driving path, and the pattern of the receiving antenna moves along the defined track to simulate the situation that the vehicle-mounted antenna moves along with the vehicle. The simulation results in the received power distribution (antenna power distribution map) of the V2X antenna on the vehicle when the vehicle is traveling along the predicted path (counterclockwise direction), and the radiation pattern (electromagnetic wave radiation distribution map) along the predicted trajectory may also be displayed.

In an embodiment, after the data to be simulated is input into the preset simulation tool, it is further required to verify whether the data to be simulated is matched with each other through a preset model in the preset simulation tool, and if the data to be simulated is wrong (the verification is not passed), relevant staff is required to modify part of the data in the data to be simulated according to experience or prompt, including but not limited to modifying the simulated terrain data, modifying relevant configuration data of the reference antenna to adjust the reference antenna pattern, modifying configuration parameters of the antenna to be simulated to adjust the antenna pattern to be simulated, modifying the preset simulation driving path, and the like. If the verification is passed, an antenna power profile can be obtained. In an embodiment, since the vehicle may have different antenna patterns in different driving directions, the data such as the azimuth angle of the to-be-measured simulation antenna may be dynamically adjusted based on the driving direction of the vehicle.

Step S130, determining antenna performances of the to-be-detected simulation antenna at different positions in the simulation map scene based on the antenna power distribution diagram.

In an embodiment, determining antenna performance of the simulated antenna to be measured at different positions in the simulated map scene based on the antenna power profile includes: and determining the antenna performance of the to-be-tested simulation antenna at different positions in the simulation map scene based on the antenna simulation power and preset power performance mapping relation of the to-be-tested simulation antenna at different positions in the simulation map scene. That is, the antenna performance is obtained by configuring the performance of different powers in advance.

Of course, the antenna performance may be obtained by displaying the antenna power profile to the corresponding worker, and inputting the antenna performance input data by the worker. Different powers are configured with different colors in the antenna power profile to distinguish.

In this embodiment, the preset power performance mapping relationship includes a mapping relationship between different antenna simulation powers and preset antenna performance levels, and after determining antenna performances of the to-be-tested simulation antenna at different positions in the simulation map scene based on the antenna power distribution diagram, the method further includes: if the antenna performance level is smaller than a preset level threshold, determining the position in the simulated map scene corresponding to the antenna performance level as a concerned position, wherein the antenna performance level is obtained based on the antenna performance; converting the attention position information of all attention positions in the simulated map scene into the real position information of the real positions in the real map scene, wherein the real map scene is a real-world map scene corresponding to the simulated map scene; and generating a road measurement key prompt based on all the real position information so as to prompt a real vehicle to perform key test on the real position when the real vehicle is in a road in a real scene, wherein the real vehicle is a real-world vehicle corresponding to the simulated vehicle to be tested. That is, the drive test can be guided by using the obtained relevant data of the antenna performance, for example, the drive test can be reminded when the real vehicle reaches the real position, and the relevant parameter performance is focused. The method can also guide the map scene of the road test, and when the road test is carried out, the similar actual map scene is selected by referring to the building shielding relation of the concerned position, building information such as building height, building materials and the like for further testing, so as to further determine whether the whole vehicle antenna of the vehicle can meet the actual use requirement. Or carrying out important attention analysis on the road test data of the real vehicle at the real position to check whether the road test data is consistent with the simulation result. To guide the antenna settings of the vehicle.

In this embodiment, generating the drive test point cues based on all of the real location information includes: acquiring an electromagnetic wave ray distribution diagram of a concerned position output by a preset simulation tool; correlating the electromagnetic wave ray distribution map with real position information corresponding to the concerned position to obtain a correlation between the electromagnetic wave ray distribution map and the real position information; and generating a road measurement point prompt based on all the real position information, all the electromagnetic wave ray distribution diagrams and the association relation. That is, when reminding, the electromagnetic wave ray distribution diagram obtained in the simulation stage can be displayed to further help related staff analyze the reasons of poor antenna performance and provide auxiliary information for analyzing the reasons of abnormal antenna performance found in the drive test stage.

Referring to fig. 6, fig. 6 is a schematic diagram of an electromagnetic wave ray distribution diagram shown in an exemplary embodiment of the present application, referring to fig. 7, fig. 7 is a schematic diagram of an electromagnetic wave ray distribution diagram showing an electromagnetic wave ray distribution diagram of a simulated vehicle to be tested traveling to a certain position, as shown in fig. 6 and 7, when the vehicle travels away from a base station antenna, the received power decreases, and when the vehicle travels toward the base station antenna, the received power increases, and when the radiation along the test track shows a propagation path where different positions on the predicted path can be observed, the received power of the vehicle-mounted V2X antenna will change due to the influence of shielding factors of different heights of the building, and the propagation path will also change due to refraction, so as to reflect the communication performance of the vehicle-mounted V2X antenna in the simulated map scene to a certain extent. Power in dBm is the Power in FIGS. 6 and 7. In fig. 6, the power represented by the line near the preset position Site 1 and the line far from the reference antenna Site 1antenna 1 approaches 40dBm, and the line far from the reference antenna Site 1antenna 1 has a corresponding power value depending on the shielding degree of the line by the building. In fig. 7, the power corresponding to the different positions and the power corresponding to the different paths (lines in fig. 7) have corresponding power performances according to the shielding condition.

In an embodiment, after determining the antenna performance of the to-be-measured simulation antenna at different positions in the simulation map scene based on the antenna power distribution diagram, the method further includes: obtaining real performances of different positions of the simulation antenna to be tested in a real map scene, which are obtained by carrying out drive test on the real performances in the real map scene, comparing the antenna performances with the real performances based on a mapping relation between the positions in the real map scene and the positions in the simulation map scene, and if the difference is larger than a preset difference threshold value, highlighting the data of the positions to prompt for important inspection.

Taking a vehicle carrying a receiving antenna and a reference antenna as an transmitting antenna as an example, referring to fig. 8, fig. 8 is a flowchart of a specific vehicle antenna performance simulation determining method according to an exemplary embodiment of the present application, and as shown in fig. 8, the method specifically includes: the real map scene data is obtained as the map scene database to obtain the map scene database, and the real map scene data is converted into the simulated terrain data, and the specific conversion mode can refer to the above embodiment, which is not described herein, so that the map scene database processing is realized. For example, a real vehicle needing drive test can be determined, and the antenna pattern of the vehicle-mounted V2X antenna of the real vehicle is processed to obtain a to-be-tested simulation antenna pattern serving as the to-be-tested simulation vehicle. Determining a real world area needing drive test, acquiring a real map scene of the real world area and real map scene data, converting the real map scene data into initial map data which can be identified by a preset simulation tool, and generating simulation terrain data of a simulation map scene based on the initial map data. And importing the simulated terrain data into a preset simulation tool to realize map scene database importing. Modeling and simulating the transmitting antenna to obtain a transmitting antenna pattern (namely the reference antenna pattern), and setting the transmitting antenna through a transmitting antenna setting step, namely carrying out parameter configuration on the reference antenna. Similarly, modeling and simulating the receiving antenna to obtain a receiving antenna pattern, setting the receiving antenna, and defining a virtual test path (also preset simulated running path) after the steps are completed. After the obtained preset simulation running path, simulation terrain data, the to-be-tested simulation antenna pattern and the reference antenna pattern of the reference antenna are input into the preset simulation tool, whether the data meet the requirement of a simulation scene or not can be subjected to model verification through a preset model of the preset simulation tool, if the data do not pass the verification, the preset simulation running path, the simulation terrain data, the to-be-tested simulation antenna pattern and the reference antenna pattern of the reference antenna are required to be adjusted until the model verification passes, and simulation results, such as an antenna power distribution diagram and the like, are output through the preset simulation tool so as to perform simulation determination on the performance of the vehicle antenna.

According to the vehicle antenna performance simulation determination method, the simulation terrain data of the preset simulation driving path and the simulation map scene, the to-be-tested simulation antenna pattern of the to-be-tested simulation vehicle and the reference antenna pattern of the reference antenna are obtained and input into the preset simulation tool, the antenna performance of the to-be-tested simulation antenna at different positions in the simulation map scene is determined based on the antenna power distribution map output by the preset simulation tool, a solution for realizing antenna performance determination in a simulation mode is provided, a part of road tests can be replaced, guidance value is provided for map scene selection and related problem analysis of road tests, manpower requirements are reduced, and cost is lowered.

The simulation software is adopted to perform virtual driving test simulation, the simulation of the wireless signal intensity can be performed, the wireless channel on the driving track is calculated, the parameters of the vehicle-mounted antenna are considered, and the performance of the antenna is evaluated through the virtual driving test. In the embodiment of the application, when a vehicle runs along a specified path in a real world scene such as a city scene, the communication performance of a simulated road side unit antenna (RSU antenna, reference antenna) and a simulated antenna to be tested of an automobile is simulated, and the propagation path of electromagnetic waves and the receiving power of a V2X antenna when the antenna runs along a predicted path are mainly observed.

In addition, the antenna performance result obtained by the simulation test can also have guiding value for map scenes of the road test, and the road test efficiency is improved by prompting the road test key points. The antenna performance based on simulation can be compared with the vehicle V2X antenna performance drive test data, and the data are reflected, so that the data distinguished by the vehicle V2X antenna performance drive test data are subjected to important inspection, and errors of vehicle antenna performance determination caused by 'hidden errors' in the drive test stage are avoided. The simulation test scene can be quantized, and multiple items can be transversely compared to form a database for subsequent viewing.

Fig. 9 is a block diagram of a vehicle antenna performance simulation determination apparatus shown in an exemplary embodiment of the present application. As shown in fig. 9, the exemplary vehicle antenna performance simulation determination apparatus includes: the obtaining module 901 is configured to obtain data to be simulated, where the data to be simulated includes a preset simulated running path, simulated terrain data of a simulated map scene, a to-be-simulated antenna pattern of a to-be-simulated vehicle, and a reference antenna pattern of a reference antenna, and the reference antenna is set at least one preset position in the simulated map scene; the simulation module 902 is configured to input data to be simulated into a preset simulation tool, simulate a vehicle to be simulated to travel in a simulated map scene according to a preset simulated travel path, obtain antenna simulation power data of different map positions corresponding to a plurality of target travel positions, and obtain an antenna power distribution diagram after the travel is completed, where the antenna power distribution diagram represents antenna simulation powers of different positions of the simulated antenna to be simulated in the simulated map scene, and the simulated antenna to be simulated is an antenna of the simulated vehicle to be simulated; the determining module 903 is configured to determine antenna performances of the to-be-detected simulation antenna at different positions in the simulation map scene based on the antenna power distribution diagram.

In another exemplary embodiment, the acquiring module includes a map scene processing unit for acquiring initial map data of a simulated map scene; determining shielding relation information among all buildings in the simulated map scene according to the initial map data; converting the initial map data into simulated map data, wherein the simulated map data comprises building information of each building in a simulated map scene, and the building information comprises at least one of building height, building materials and building structures; and generating simulated terrain data based on the shielding relation information and the simulated map data.

In another exemplary embodiment, the acquisition module further includes a modification unit for modifying building information of at least one building to update the simulated map data with the modified simulated map data before generating the simulated terrain data based on the occlusion relation information and the simulated map data.

In another exemplary embodiment, the apparatus further includes a prompting module, where the prompting unit is configured to determine, as the attention position, a position in a simulated map scene corresponding to an antenna performance level, where the antenna performance level is obtained based on the antenna performance, if the antenna performance level is less than a preset level threshold; converting the attention position information of all attention positions in the simulated map scene into the real position information of the real positions in the real map scene, wherein the real map scene is a real-world map scene corresponding to the simulated map scene; and generating a road measurement key prompt based on all the real position information so as to prompt a real vehicle to perform key test on the real position when the real vehicle is in a road in a real scene, wherein the real vehicle is a real-world vehicle corresponding to the simulated vehicle to be tested.

Fig. 10 is a block diagram showing a specific vehicle antenna performance simulation determination apparatus according to an exemplary embodiment of the present application. As shown in fig. 10, the acquisition module includes a receiving antenna processing unit 1010, a transmitting antenna processing unit 1020, a map scene processing unit 1030, and a virtual path setting unit 1040, and the map scene processing unit includes map scene database acquisition, map scene database processing, and map scene database importing. The transmitting antenna processing unit comprises transmitting antenna modeling and simulation, transmitting antenna patterns and transmitting antenna setting. The receiving antenna processing unit comprises receiving antenna modeling and simulation, receiving antenna patterns and receiving antenna settings. The virtual path setting unit comprises virtual test path definition and solving setting. The simulation result analysis unit includes post-processing result display such as vehicle virtual path travel received power analysis and vehicle virtual path travel ray analysis. The specific functions of the above units may refer to the related description of the method shown in fig. 8, which is not described herein. The data processed by the above units are input to a predetermined simulation tool 1050 to obtain simulation results such as an antenna power distribution diagram, an electromagnetic wave radiation distribution diagram, and the like, and the simulation results are input to a simulation result analysis unit 1060 to perform result analysis. The simulation result analysis unit may be understood as implementing the related functions of the determining module and the prompting module in the foregoing embodiments, which are not described herein.

It should be noted that, the vehicle antenna performance simulation determining apparatus provided in the foregoing embodiment and the vehicle antenna performance simulation determining method provided in the foregoing embodiment belong to the same concept, and the specific manner in which each module and unit perform the operation has been described in detail in the method embodiment, which is not repeated herein. In practical application, the vehicle antenna performance simulation determining device provided in the above embodiment may allocate the functions to different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above, which is not limited herein.

The embodiment of the application also provides electronic equipment, which comprises: one or more processors; and a storage means for storing one or more programs that, when executed by the one or more processors, cause the electronic device to implement the vehicle antenna performance simulation determination method provided in the respective embodiments described above.

Fig. 11 shows a schematic diagram of a computer system suitable for use in implementing an embodiment of the application. It should be noted that, the computer system 1100 of the electronic device shown in fig. 11 is only an example, and should not impose any limitation on the functions and the application scope of the embodiments of the present application.

As shown in fig. 11, the computer system 1100 includes a central processing unit (Central Processing Unit, CPU) 1101 that can perform various appropriate actions and processes, such as performing the methods described in the above embodiments, according to a program stored in a Read-Only Memory (ROM) 1102 or a program loaded from a storage section 1108 into a random access Memory (Random Access Memory, RA M) 1103. In the RAM 1103, various programs and data required for system operation are also stored. The CPU 1101, ROM 1102, and RAM 1103 are connected to each other by a bus 1104. An Input/Output (I/O) interface 1105 is also connected to bus 1104.

The following components are connected to the I/O interface 1105: an input section 1106 including a keyboard, a mouse, and the like; an output portion 1107 including a Cathode Ray Tube (CRT), a liquid crystal display (Liquid Crystal Display, LC D), and the like, a speaker, and the like; a storage section 1108 including a hard disk or the like; and a communication section 1109 including a network interface card such as a LAN (Local Area Network ) card, a modem, or the like. The communication section 1109 performs communication processing via a network such as the internet. The drive 1110 is also connected to the I/O interface 1105 as needed. Removable media 1111, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like, is installed as needed on drive 1110, so that a computer program read therefrom is installed as needed into storage section 1108.

In particular, according to embodiments of the present application, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising a computer program for performing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via the communication portion 1109, and/or installed from the removable media 1111. When executed by a Central Processing Unit (CPU) 1101, performs the various functions defined in the system of the present application.

It should be noted that, the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium may be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-Only Memory (ROM), an erasable programmable read-Only Memory (Erasable Programmable Read Only Memory, EPROM), flash Memory, an optical fiber, a portable compact disc read-Only Memory (CD-RO M), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer-readable signal medium may comprise a data signal propagated in baseband or as part of a carrier wave, with a computer-readable computer program embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. A computer program embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Where each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units involved in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.

Another aspect of the application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor of a computer, causes the computer to perform a method as described above. The computer-readable storage medium may be included in the electronic device described in the above embodiment or may exist alone without being incorporated in the electronic device.

Another aspect of the application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the methods provided in the above-described respective embodiments.

The above embodiments are merely illustrative of the principles of the present application and its effectiveness, and are not intended to limit the application. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the application. It is therefore intended that all equivalent modifications and changes made by those skilled in the art without departing from the spirit and technical spirit of the present application shall be covered by the appended claims.

Claims

1. A vehicle antenna performance simulation determination method, the method comprising:

obtaining data to be simulated, wherein the data to be simulated comprises a preset simulation running path, simulation topographic data of a simulation map scene, a to-be-simulated antenna pattern of a to-be-simulated vehicle and a reference antenna pattern of a reference antenna, and the reference antenna is arranged at least one preset position in the simulation map scene;

inputting the data to be simulated into a preset simulation tool, simulating the to-be-simulated vehicle to run in the simulation map scene according to the preset simulation running path, obtaining antenna simulation power data of different map positions corresponding to a plurality of target running positions, and obtaining an antenna power distribution diagram after the running is completed, wherein the antenna power distribution diagram represents antenna simulation power of the to-be-simulated antenna at different positions in the simulation map scene, and the to-be-simulated antenna is an antenna of the to-be-simulated vehicle;

and determining the antenna performances of the to-be-detected simulation antenna at different positions in the simulation map scene based on the antenna power distribution diagram.

2. The vehicle antenna performance simulation determination method according to claim 1, wherein obtaining simulated terrain data of a simulated map scene comprises:

Acquiring initial map data of the simulated map scene;

determining shielding relation information among all buildings in the simulated map scene according to the initial map data;

converting the initial map data into simulated map data, the simulated map data comprising building information for each building in the simulated map scene, the building information comprising at least one of building height, building material, building structure;

and generating the simulated terrain data based on the occlusion relation information and the simulated map data.

3. The vehicle antenna performance simulation determination method according to claim 2, characterized in that before generating the simulated terrain data based on the occlusion relation information and the simulated map data, the method comprises:

and modifying building information of at least one building to update the simulation map data with the modified simulation map data.

4. The vehicle antenna performance simulation determination method according to claim 1, wherein if the position of the reference antenna in the simulated map scene is a fixed position, the preset position is an intersection position in the simulated map scene, and configuration parameters of the reference antenna are preconfigured, and the configuration parameters include a downtilt angle, an azimuth angle, a transmitting power, a working frequency and an antenna height.

5. The vehicle antenna performance simulation determination method according to claim 1, wherein if the position of the reference antenna in the simulation map scene is a movable position, simulating the to-be-tested simulation vehicle to travel in the simulation map scene according to the preset simulation travel path to obtain antenna simulation power data of different map positions corresponding to a plurality of target travel positions, comprises:

acquiring real-time positions and configuration parameters of the reference antenna corresponding to each target driving position in the driving process of the to-be-detected simulation vehicle in the simulation map scene according to the preset simulation driving path, wherein the configuration parameters comprise a downward inclination angle, an azimuth angle, a transmitting power, a working frequency and an antenna height;

determining antenna simulation power data of different map positions corresponding to a target running position according to the simulation terrain data, the to-be-detected simulation antenna pattern, the reference antenna pattern, the target running position, the real-time position and the configuration parameter;

and taking the antenna simulation power data of different map positions corresponding to each target driving position as the antenna simulation power data of different map positions corresponding to a plurality of target driving positions.

6. The vehicle antenna performance simulation determination method according to any one of claims 1 to 5, wherein determining antenna performance of the simulation antenna to be measured at different positions in the simulation map scene based on the antenna power distribution map includes:

and determining the antenna performance of the to-be-tested simulation antenna at different positions in the simulation map scene based on the antenna simulation power and preset power performance mapping relation of the to-be-tested simulation antenna at different positions in the simulation map scene.

7. The vehicle antenna performance simulation determination method according to claim 6, wherein the preset power performance mapping relationship includes a mapping relationship between different antenna simulation powers and preset antenna performance levels, and after determining antenna performances of the to-be-detected simulation antenna at different positions in the simulation map scene based on the antenna power distribution map, the method further includes:

if the antenna performance level is smaller than a preset level threshold, determining the position in the simulated map scene corresponding to the antenna performance level as a concerned position, wherein the antenna performance level is obtained based on the antenna performance;

converting the attention position information of all attention positions in the simulation map scene into the real position information of the real positions in the real map scene, wherein the real map scene is a real-world map scene corresponding to the simulation map scene;

And generating a road measurement key prompt based on all real position information so as to prompt a real vehicle to perform key test on the real position when a real scene is in road, wherein the real vehicle is a real-world vehicle corresponding to the simulation vehicle to be tested.

8. The vehicle antenna performance simulation determination method according to claim 7, wherein generating the drive-test point prompt based on all of the real position information includes:

acquiring an electromagnetic wave ray distribution diagram of the concerned position output by the preset simulation tool;

correlating the electromagnetic wave ray distribution map with real position information corresponding to the concerned position to obtain a correlation between the electromagnetic wave ray distribution map and the real position information;

and generating a road measurement point prompt based on all the real position information, all the electromagnetic wave ray distribution diagrams and the association relation.

9. A vehicle antenna performance simulation determination method according to any one of claims 1 to 5, wherein,

the to-be-detected simulation antenna of the to-be-detected simulation vehicle is a receiving antenna, and the reference antenna is a transmitting antenna;

or alternatively, the first and second heat exchangers may be,

the simulation antenna to be tested of the simulation vehicle to be tested is a transmitting antenna, and the reference antenna is a receiving antenna.

10. A vehicle antenna performance simulation determination apparatus, characterized in that the apparatus comprises:

the system comprises an acquisition module, a simulation control module and a simulation control module, wherein the acquisition module is used for acquiring data to be simulated, the data to be simulated comprises a preset simulation running path, simulation terrain data of a simulation map scene, a to-be-simulated antenna pattern of a to-be-simulated vehicle and a reference antenna pattern of a reference antenna, and the reference antenna is arranged at least one preset position in the simulation map scene;

the simulation module is used for inputting the data to be simulated into a preset simulation tool, simulating the to-be-simulated vehicle to run in the simulation map scene according to the preset simulation running path to obtain antenna simulation power data of different map positions corresponding to a plurality of target running positions, and obtaining an antenna power distribution diagram after the running is completed, wherein the antenna power distribution diagram represents the antenna simulation power of the to-be-simulated antenna at different positions in the simulation map scene, and the to-be-simulated antenna is an antenna of the to-be-simulated vehicle;

and the determining module is used for determining the antenna performances of the to-be-detected simulation antenna at different positions in the simulation map scene based on the antenna power distribution diagram.

11. An electronic device, the electronic device comprising:

one or more processors;

storage means for storing one or more programs which, when executed by the one or more processors, cause the electronic device to implement the method of any of claims 1-9.

12. A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor of a computer, causes the computer to perform the method of any of claims 1 to 9.