CN116095713A - Drive test analysis method, system, electronic device and non-volatile storage medium - Google Patents
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本申请涉及移动通信技术领域，具体而言，涉及一种路测分析方法、系统、电子设备及非易失性存储介质。The present application relates to the technical field of mobile communication, in particular, to a drive test analysis method, system, electronic equipment and non-volatile storage medium.
背景技术Background technique
随着移动通信技术的快速发展，用户对移动网络质量的要求也日益提高，DT(DRIVE TEST，路测)/CQT(CALL QUALITY TEST，通话质量测试)自动路测是运营商对移动网络质量评估及了解用户真实体验的的重要手段之一，然而传统DT/CQT测试仅能通过路测日志(LOG)数据进行无线网络情况分析，无法获取测试时的物理环境数据，严重影响网络优化人员对问题定位的效率及精准性，从而导致对网络信号质量问题的分析效率低、准确性差等技术问题。With the rapid development of mobile communication technology, users' requirements for mobile network quality are also increasing. DT (DRIVE TEST, drive test)/CQT (CALL QUALITY TEST, call quality test) automatic drive test is the operator's mobile network quality assessment And one of the important means to understand the real experience of users. However, the traditional DT/CQT test can only analyze the wireless network situation through the drive test log (LOG) data, and cannot obtain the physical environment data during the test, which seriously affects the network optimization personnel's understanding of the problem. The efficiency and accuracy of positioning lead to technical problems such as low efficiency and poor accuracy in the analysis of network signal quality problems.
针对上述的问题，目前尚未提出有效的解决方案。For the above problems, no effective solution has been proposed yet.
发明内容Contents of the invention
本申请实施例提供了一种路测分析方法、系统、电子设备及非易失性存储介质，以至少解决由于相关技术中仅能进行网络信号数据采集，无法获得测量时的物理环境数据，造成对网络信号质量问题的分析效率低、准确性差的技术问题。The embodiment of the present application provides a drive test analysis method, system, electronic equipment, and non-volatile storage medium to at least solve the problem caused by the fact that only network signal data collection can be performed in the related art, and physical environment data during measurement cannot be obtained. The technical problem of low efficiency and poor accuracy in the analysis of network signal quality problems.
根据本申请实施例的一个方面，提供了一种路测分析方法，包括：绑定目标路测路径的网络信号数据和全景视频数据，其中，网络信号数据用于表征目标路测路径上各个轨迹点的网络信号质量情况，全景视频数据用于表征目标路测路径的环境信息；依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度。According to an aspect of an embodiment of the present application, a drive test analysis method is provided, including: binding network signal data and panoramic video data of the target drive test path, wherein the network signal data is used to characterize each trajectory on the target drive test path The network signal quality of the point, the panoramic video data is used to represent the environmental information of the target drive test path; according to the time stamp, each track point in the network signal data is associated with each picture frame in the panoramic video data; the network of track points is analyzed The signal data and the picture frame associated with the track point obtain signal impact information, wherein the signal impact information is used to represent the influence degree of the surrounding environment of the track point on the network signal quality of the track point.
可选地，绑定目标路测路径的网络信号数据和全景视频数据包括：在目标时刻，生成目标标识，其中，目标时刻为路测设备开始采集网络信号数据的时刻；配置目标标识至路测设备和图像采集设备，其中，图像采集设备为计划进行全景视频数据采集的设备；在检测到目标标识配置成功的情况下，接收路测设备采集的包含目标标识的网络信号数据，以及图像采集设备采集的包含目标标识的全景视频数据。Optionally, binding the network signal data and panoramic video data of the target drive test path includes: generating a target identifier at the target time, wherein the target time is the moment when the drive test device starts collecting network signal data; configuring the target identifier to the drive test equipment and image acquisition equipment, wherein the image acquisition equipment is a device that plans to collect panoramic video data; when the target identification is detected to be configured successfully, it receives the network signal data including the target identification collected by the drive test equipment, and the image acquisition equipment Collected panoramic video data containing target identification.
可选地，生成目标标识包括：生成与目标时刻对应的时间信息；确定路测设备的设备编号，以及路测设备与图像采集设备相连接的端口号；将时间信息、设备编号以及端口号进行组合，得到目标标识。Optionally, generating the target identification includes: generating time information corresponding to the target moment; determining the device number of the drive test device, and the port number connecting the drive test device to the image acquisition device; Combined to get the target ID.
可选地，配置目标标识至路测设备和图像采集设备之后还包括：检测目标标识是否成功配置到路测设备和图像采集设备中；在目标标识配置失败的情况下，发送告警信息。Optionally, after configuring the target identifier to the drive test device and the image acquisition device, it further includes: detecting whether the target identifier is successfully configured in the drive test device and the image acquisition device; and sending an alarm message if the target identifier configuration fails.
可选地，依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联包括：确定网络信号数据中各轨迹点对应的时间戳，以及与网络信号数据具有相同目标标识的全景视频数据中画面帧对应的时间戳，其中，时间戳用于表征采集轨迹点的数据或画面帧的时间；将具有相同的时间戳的轨迹点和画面帧进行关联。Optionally, according to the time stamp, associating each track point in the network signal data with each picture frame in the panoramic video data includes: determining the time stamp corresponding to each track point in the network signal data, and having the same target as the network signal data Timestamps corresponding to picture frames in the identified panoramic video data, where the time stamps are used to represent the time of collecting track point data or picture frames; track points with the same time stamp are associated with picture frames.
可选地，分析轨迹点的网络信号数据和与轨迹点关联的画面帧之前还包括：响应全景视频播放指令，确定与全景视频播放指令对应的全景视频数据；依据全景视频数据，生成目标全景视频；获取与全景视频数据具有相同目标标识的网络信号数据；发送目标全景视频至前端界面进行播放，并将网络信号数据中与前端界面中显示的画面帧相关联的轨迹点的数据实时发送至前端界面进行显示。Optionally, before analyzing the network signal data of the track point and the picture frame associated with the track point, it also includes: responding to the panoramic video playback instruction, determining the panoramic video data corresponding to the panoramic video playback instruction; generating the target panoramic video according to the panoramic video data ; Obtain the network signal data with the same target identifier as the panoramic video data; send the target panoramic video to the front-end interface for playback, and send the data of the track points associated with the picture frames displayed in the front-end interface in the network signal data to the front-end in real time The interface is displayed.
可选地，方法还包括：将全景视频数据和网络信号数据存储至目标数据库，并依据存储至目标数据库的全景视频数据和网络信号数据的目标标识生成目录序列，其中，目标数据库包括以下至少之一：本地数据库、部署于云端的数据库。Optionally, the method further includes: storing the panoramic video data and the network signal data in the target database, and generating a catalog sequence according to the target identification of the panoramic video data and the network signal data stored in the target database, wherein the target database includes at least one of the following One: local database, database deployed in the cloud.
根据本申请实施例的另一个方面，还提供了一种路测分析系统，包括：路测设备、图像采集设备和处理器，其中，路测设备，用于采集目标路测路径的网络信号数据，其中，网络信号数据用于表征目标路测路径上各个轨迹点的网络信号质量情况；图像采集设备，用于用于采集目标路测路径的全景视频数据，其中，全景视频数据用于表征目标路测路径的环境信息；处理器，用于绑定目标路测路径的网络信号数据和全景视频数据；依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息果用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度。According to another aspect of the embodiments of the present application, a drive test analysis system is also provided, including: a drive test device, an image acquisition device, and a processor, wherein the drive test device is used to collect network signal data of a target drive test path , where the network signal data is used to represent the network signal quality of each track point on the target drive test path; the image acquisition device is used to collect the panoramic video data of the target drive test path, wherein the panoramic video data is used to represent the target The environmental information of the drive test path; the processor is used to bind the network signal data and panoramic video data of the target drive test path; according to the timestamp, associate each track point in the network signal data with each picture frame in the panoramic video data ; analyzing the network signal data of the track point and the picture frame associated with the track point to obtain signal impact information, wherein the signal impact information is used to represent the influence degree of the surrounding environment of the track point on the network signal quality of the track point.
根据本申请实施例的另一个方面，还提供了一种路测分析装置，包括：绑定模块，用于绑定目标路测路径的网络信号数据和全景视频数据，其中，网络信号数据用于表征目标路测路径上各个轨迹点的网络信号质量情况，全景视频数据用于表征目标路测路径的环境信息；关联模块，用于依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；分析模块，用于分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息果用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度。According to another aspect of the embodiment of the present application, there is also provided a device for drive test analysis, including: a binding module for binding network signal data and panoramic video data of the target drive test path, wherein the network signal data is used for To characterize the network signal quality of each track point on the target drive test path, the panoramic video data is used to represent the environmental information of the target drive test path; the association module is used to combine each track point in the network signal data with the panoramic video according to the time stamp Each picture frame in the data is associated; the analysis module is used to analyze the network signal data of the track point and the picture frame associated with the track point to obtain signal influence information, wherein the signal influence information is used to represent the impact of the surrounding environment of the track point on the track The influence degree of the network signal quality of the point.
根据本申请实施例的又一方面，还提供了一种电子设备，电子设备包括处理器，处理器用于运行程序，其中，程序运行时执行路测分析方法。According to yet another aspect of the embodiments of the present application, there is also provided an electronic device, the electronic device includes a processor, and the processor is configured to run a program, wherein the drive test analysis method is executed when the program is running.
根据本申请实施例的再一方面，还提供了一种非易失性存储介质，非易失性存储介质包括存储的计算机程序，其中，非易失性存储介质所在设备通过运行计算机程序执行路测分析方法。According to yet another aspect of the embodiments of the present application, a non-volatile storage medium is also provided. The non-volatile storage medium includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the path by running the computer program. measurement analysis method.
在本申请实施例中，采用绑定目标路测路径的网络信号数据和全景视频数据，其中，网络信号数据用于表征目标路测路径上各个轨迹点的网络信号质量情况，全景视频数据用于表征目标路测路径的环境信息；依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度的方式，通过在相关路测技术之上嵌入了路测过程物理环境全景的视频采集功能，并将采集路测过程中的网络参数数据及测试环境的360度全景视频数据进行关联同步，可以远程实时监视路测过程，达到了对路测的远程实况分析并且精准定位的目的，进而解决了由于相关技术中仅能进行网络信号数据采集，无法获得测量时的物理环境数据，造成对网络信号质量问题的分析效率低、准确性差技术问题。In this embodiment of the application, the network signal data and panoramic video data of the target drive test path are bound together, wherein the network signal data is used to characterize the network signal quality of each track point on the target drive test path, and the panoramic video data is used to Represent the environmental information of the target drive test path; associate each track point in the network signal data with each picture frame in the panoramic video data according to the time stamp; analyze the network signal data of the track point and the picture frame associated with the track point, and obtain Signal impact information, in which the signal impact information is used to characterize the influence degree of the surrounding environment of the track point on the network signal quality of the track point, by embedding the video collection function of the physical environment panorama of the drive test process on the relevant drive test technology , and the network parameter data collected during the drive test and the 360-degree panoramic video data of the test environment are associated and synchronized, and the drive test process can be monitored remotely in real time, achieving the purpose of remote live analysis and precise positioning of the drive test, and then solving the problem. Because the relevant technology can only collect network signal data, but cannot obtain physical environment data during measurement, the technical problems of low efficiency and poor accuracy in the analysis of network signal quality problems are solved.
附图说明Description of drawings
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation to the application. In the attached picture:
图1是根据本申请实施例提供的一种用于实现路测分析的方法的计算机终端(或电子设备)的硬件结构框图。FIG. 1 is a block diagram of a hardware structure of a computer terminal (or electronic device) for implementing a drive test analysis method provided according to an embodiment of the present application.
图2是根据本申请实施例提供的一种路测分析的方法流程的示意图；FIG. 2 is a schematic diagram of a method flow of a drive test analysis provided according to an embodiment of the present application;
图3是根据本申请实施例提供的一种路测轨迹与视频帧画面同步播放界面的示意图；Fig. 3 is a schematic diagram of a synchronous playback interface between a drive test track and a video frame picture provided according to an embodiment of the present application;
图4是根据本申请实施例提供的一种路测系统的存储方式的示意图；Fig. 4 is a schematic diagram of a storage mode of a drive test system provided according to an embodiment of the present application;
图5是根据本申请实施例提供的一种路测数据存储界面的示意图；FIG. 5 is a schematic diagram of a drive test data storage interface provided according to an embodiment of the present application;
图6是根据本申请实施例提供的一种路测分析系统的结构示意图；FIG. 6 is a schematic structural diagram of a drive test analysis system provided according to an embodiment of the present application;
图7是根据本申请实施例提供的一种路测分析系统的功能模块的示意图；FIG. 7 is a schematic diagram of functional modules of a drive test analysis system provided according to an embodiment of the present application;
图8是根据本申请实施例提供的一种路测数据采集界面的示意图；FIG. 8 is a schematic diagram of a drive test data collection interface provided according to an embodiment of the present application;
图9是根据本申请实施例提供的一种路测分析装置的结构示意图。Fig. 9 is a schematic structural diagram of a drive test analysis device provided according to an embodiment of the present application.
具体实施方式Detailed ways
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.
为了方便本领域技术人员更好地理解本申请实施例，现将本申请实施例涉及的部分技术术语或者名词解释如下：In order to facilitate those skilled in the art to better understand the embodiments of the present application, some technical terms or nouns involved in the embodiments of the present application are now explained as follows:
路测(DRIVE TEST，DT)：也称驱车测试。为了掌握网络信号质量、电平、覆盖等状况，利用专门测试设备对道路进行的专门测试。通过测试软件进行信令采集和统计分析，获得网络性能统计指标，发现网络中存在的问题，为优化提供实际数据支撑。Road test (DRIVE TEST, DT): also known as driving test. In order to grasp the network signal quality, level, coverage and other conditions, use special test equipment to conduct special tests on roads. Through the test software for signaling collection and statistical analysis, obtain network performance statistics indicators, find problems in the network, and provide actual data support for optimization.
通话质量测试(CALL QUALITY TEST，CQT)：通常是采用定点拨打的方式开展的一种的网络性能测试。Call quality test (CALL QUALITY TEST, CQT): It is usually a kind of network performance test carried out by fixed-point dialing.
LOG：即DT/CQT测试日志文件，记录网络信号信息。LOG: DT/CQT test log file, which records network signal information.
360度全景音像：通过360度全景摄像头采集到的全景音视频文件。360-degree panoramic audio and video: panoramic audio and video files collected by a 360-degree panoramic camera.
在相关技术中，路测分析时仅进行网络信号数据采集，脱离了实际的物理测试环境，因此，存在网络信号质量问题的分析效率低、准确性差的问题。为了解决该问题，本申请实施例中提供了相关的解决方案，以下详细说明。In related technologies, only network signal data is collected during drive test analysis, which is separated from the actual physical test environment. Therefore, there are problems of low efficiency and poor accuracy in analyzing network signal quality problems. In order to solve this problem, a related solution is provided in the embodiment of the present application, which will be described in detail below.
根据本申请实施例，提供了一种路测分析的方法实施例，需要说明的是，在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统中执行，并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。According to an embodiment of the present application, an embodiment of a method for drive test analysis is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
本申请实施例所提供的方法实施例可以在移动终端、计算机终端或者类似的运算装置中执行。图1示出了一种用于实现路测分析方法的计算机终端(或电子设备)的硬件结构框图。如图1所示，计算机终端10(或电子设备10)可以包括一个或多个(图中采用102a、102b，……，102n来示出)处理器102(处理器102可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)、用于存储数据的存储器104、以及用于通信功能的传输模块106。除此以外，还可以包括：显示器、输入/输出接口(I/O接口)、通用串行总线(USB)端口(可以作为BUS总线的端口中的一个端口被包括)、网络接口、电源和/或相机。本领域普通技术人员可以理解，图1所示的结构仅为示意，其并不对上述电子装置的结构造成限定。例如，计算机终端10还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。The method embodiments provided in the embodiments of the present application may be executed in mobile terminals, computer terminals or similar computing devices. FIG. 1 shows a block diagram of a hardware structure of a computer terminal (or electronic device) for implementing a drive test analysis method. As shown in FIG. 1 , the computer terminal 10 (or electronic device 10) may include one or more (shown by 102a, 102b, ..., 102n in the figure) processors 102 (the
应当注意到的是上述一个或多个处理器102和/或其他数据处理电路在本文中通常可以被称为“数据处理电路”。该数据处理电路可以全部或部分的体现为软件、硬件、固件或其他任意组合。此外，数据处理电路可为单个独立的处理模块，或全部或部分的结合到计算机终端10(或电子设备)中的其他元件中的任意一个内。如本申请实施例中所涉及到的，该数据处理电路作为一种处理器控制(例如与接口连接的可变电阻终端路径的选择)。It should be noted that the one or
存储器104可用于存储应用软件的软件程序以及模块，如本申请实施例中的路测分析方法对应的程序指令/数据存储装置，处理器102通过运行存储在存储器104内的软件程序以及模块，从而执行各种功能应用以及数据处理，即实现上述路测分析方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可进一步包括相对于处理器102远程设置的存储器，这些远程存储器可以通过网络连接至计算机终端10。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。The memory 104 can be used to store software programs and modules of application software, such as the program instruction/data storage device corresponding to the drive test analysis method in the embodiment of the present application. The
传输装置106用于经由一个网络接收或者发送数据。上述的网络具体实例可包括计算机终端10的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(Network Interface Controller，NIC)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置106可以为射频(Radio Frequency，RF)模块，其用于通过无线方式与互联网进行通讯。The transmission device 106 is used to receive or transmit data via a network. The specific example of the above-mentioned network may include a wireless network provided by the communication provider of the computer terminal 10 . In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (Radio Frequency, RF) module, which is used to communicate with the Internet in a wireless manner.
显示器可以例如触摸屏式的液晶显示器(LCD)，该液晶显示器可使得用户能够与计算机终端10(或电子设备)的用户界面进行交互。The display may be, for example, a touchscreen liquid crystal display (LCD), which may enable a user to interact with the user interface of the computer terminal 10 (or electronic device).
在上述运行环境下，本申请实施例提供了一种路测分析方法，图2是根据本申请实施例提供的一种路测分析的方法流程的示意图，如图2所示，该方法包括如下步骤：Under the above-mentioned operating environment, the embodiment of the present application provides a drive test analysis method, and FIG. 2 is a schematic diagram of a method flow of a drive test analysis provided according to the embodiment of the present application. As shown in FIG. 2 , the method includes the following step:
步骤S202，绑定目标路测路径的网络信号数据和全景视频数据，其中，网络信号数据用于表征目标路测路径上各个轨迹点的网络信号质量情况，全景视频数据用于表征目标路测路径的环境信息；Step S202, binding the network signal data and panoramic video data of the target drive test path, wherein the network signal data is used to represent the network signal quality of each track point on the target drive test path, and the panoramic video data is used to represent the target drive test path environmental information;
在本实施例中，上述网络信号数据为路测设备采集的网络参数数据，上述全景视频数据为通过360度全景相机采集的视频数据。In this embodiment, the above-mentioned network signal data is network parameter data collected by a drive test device, and the above-mentioned panoramic video data is video data collected by a 360-degree panoramic camera.
在本申请的一些实施例中，绑定目标路测路径的网络信号数据和全景视频数据包括以下步骤：在目标时刻，生成目标标识，其中，目标时刻为路测设备开始采集网络信号数据的时刻；配置目标标识至路测设备和图像采集设备，其中，图像采集设备为计划进行全景视频数据采集的设备；在检测到目标标识配置成功的情况下，接收路测设备采集的包含目标标识的网络信号数据，以及图像采集设备采集的包含目标标识的全景视频数据。In some embodiments of the present application, binding the network signal data and the panoramic video data of the target drive test path includes the following steps: at the target time, generating a target identifier, wherein the target time is the time when the drive test device starts to collect network signal data ;Configure the target identification to the drive test equipment and the image acquisition device, wherein the image acquisition device is a device that plans to collect panoramic video data; when it is detected that the target identification configuration is successful, receive the network information collected by the drive test equipment that contains the target identification; Signal data, and panoramic video data including target identification collected by image acquisition equipment.
具体地，当路测启动时，给路测网络参数数据(即上述网络信号数据)和全景视频数据同步生成相同且唯一识别的ID号(即上述目标标识)，使得两者数据采集过程中同步启停，后期呈现时同步调用。Specifically, when the drive test is started, the same and uniquely identified ID number (ie, the above-mentioned target identification) is synchronously generated for the drive test network parameter data (ie, the above-mentioned network signal data) and the panoramic video data, so that the two data collection processes are synchronized Start and stop, called synchronously when post-rendering.
在本申请的一些实施例中，生成的唯一识别ID号(目标标识)格式为：日期时间+设备编号+测试端口号，例如：2022031212101111标识，该标识从左到右的数字20220312121011是日期时间，标识生成的时间为2022年3月12日12时10分11秒，倒数第二位的1代表路测设备编号，最后一位1则代表测试的端口号是1号端口。In some embodiments of the present application, the format of the generated unique identification ID number (target identification) is: date time + device number + test port number, for example: 2022031212101111 identification, the number 20220312121011 of the identification from left to right is the date time, The logo was generated at 12:10:11 on March 12, 2022. The second-to-last digit 1 represents the drive test device number, and the last digit 1 represents the test port number is port 1.
作为一种可选的实施方式，可以通过以下步骤生成上述格式的目标标识，包括：生成与目标时刻对应的时间信息；确定路测设备的设备编号，以及路测设备与图像采集设备相连接的端口号；将时间信息、设备编号以及端口号进行组合，得到目标标识。As an optional implementation, the target identification in the above format can be generated through the following steps, including: generating time information corresponding to the target moment; determining the device number of the drive test device, and Port number; combine the time information, device number and port number to obtain the target ID.
为了确保目标标识已配置成功，配置目标标识至路测设备和图像采集设备之后还包括以下步骤：检测目标标识是否成功配置到路测设备和图像采集设备中；在目标标识配置失败的情况下，发送告警信息。In order to ensure that the target identification has been successfully configured, after configuring the target identification to the drive test device and the image acquisition device, the following steps are also included: detecting whether the target identification is successfully configured in the drive test device and the image acquisition device; in the case of a target identification configuration failure, Send an alert message.
具体地，通过调用系统中函数获取当前日期时间，并确定路测设备的编号，以及路测设备与全景相机(即上述图像采集设备)相连接的端口号，生成上述格式的唯一识别ID号(目标标识)；全景相机通过生成的唯一标识ID绑定设备，并将标识ID存入数据库；检测路测设备和全景相机中是否已配置好该唯一标识ID，在配置成功的情况下，路测设备和全景相机即可进行数据采集，采集后得到的路测网络参数数据(即上述网络信号数据)和全景视频数据中均包含上述唯一识别ID号(目标标识)；在配置失败的情况下，发送告警信息，并重新进行配置。Specifically, by calling the function in the system to obtain the current date and time, and determining the serial number of the drive test device, and the port number connecting the drive test device to the panoramic camera (ie, the above-mentioned image acquisition device), a unique identification ID number in the above format is generated ( target identification); the panoramic camera binds the device through the generated unique identification ID, and stores the identification ID in the database; detects whether the unique identification ID has been configured in the drive test device and the panoramic camera, and if the configuration is successful, the drive test The equipment and the panoramic camera can carry out data collection, and the drive test network parameter data obtained after collection (that is, the above-mentioned network signal data) and the panoramic video data both contain the above-mentioned unique identification ID number (target identification); in the case of configuration failure, Send an alarm message and reconfigure.
步骤S204，依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；Step S204, according to the timestamp, associating each track point in the network signal data with each picture frame in the panoramic video data;
在本申请的一些实施例中，依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联包括以下步骤：确定网络信号数据中各轨迹点对应的时间戳，以及与网络信号数据具有相同目标标识的全景视频数据中画面帧对应的时间戳，其中，时间戳用于表征采集轨迹点的数据或画面帧的时间；将具有相同的时间戳的轨迹点和画面帧进行关联。In some embodiments of the present application, according to the time stamp, associating each track point in the network signal data with each picture frame in the panoramic video data includes the following steps: determining the time stamp corresponding to each track point in the network signal data, and The time stamp corresponding to the picture frame in the panoramic video data with the same target identifier as the network signal data, wherein the time stamp is used to represent the time of collecting the data of the track point or the picture frame; the track point and the picture frame with the same time stamp to associate.
具体地，在进行DT/CQT路测时，路测软件和360度全景相机会记录当前时间(以当前北京日期时间或时间戳)，通过时间点(或时间戳)对路测轨迹和视频全景画面数据进行同步调用。Specifically, when conducting a DT/CQT drive test, the drive test software and the 360-degree panoramic camera will record the current time (in the current Beijing date or time stamp), and use the time point (or time stamp) to analyze the drive test trajectory and video panorama Screen data is called synchronously.
例如：路测中某个位置采样点的采集时间为2021-12-20 10:00:00(或时间戳：1639965600)，通过匹配相同时间点(时间戳)同步调用视频帧的全景画面，从而呈现网络信息和现场画面信息。For example: the collection time of a sampling point at a location in the drive test is 2021-12-20 10:00:00 (or timestamp: 1639965600), and the panoramic screen of the video frame is called synchronously by matching the same time point (time stamp), so that Present network information and live screen information.
步骤S206，分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度。Step S206, analyzing the network signal data of the track point and the picture frame associated with the track point to obtain signal impact information, wherein the signal impact information is used to represent the influence degree of the surrounding environment of the track point on the network signal quality of the track point.
在本申请的一些实施例中，分析轨迹点的网络信号数据和与轨迹点关联的画面帧之前还包括以下步骤：响应全景视频播放指令，确定与全景视频播放指令对应的全景视频数据；依据全景视频数据，生成目标全景视频；获取与全景视频数据具有相同目标标识的网络信号数据；发送目标全景视频至前端界面进行播放，并将网络信号数据中与前端界面中显示的画面帧相关联的轨迹点的数据实时发送至前端界面进行显示。In some embodiments of the present application, the following steps are also included before analyzing the network signal data of the track point and the picture frame associated with the track point: responding to the panoramic video playback instruction, determining the panoramic video data corresponding to the panoramic video playback instruction; Video data, generate the target panoramic video; obtain the network signal data with the same target identification as the panoramic video data; send the target panoramic video to the front-end interface for playback, and associate the network signal data with the picture frame displayed in the front-end interface The point data is sent to the front-end interface for display in real time.
具体地，在检测到播放指令时，将目标全景视频发送至前端界面进行播放，并实时监测前端页面中全景视频的播放进度，依据时间戳，实时调取与当前正在显示的画面帧对应的网络信号数据至前端界面进行显示；在检测到视频播放暂停的情况下，网络信号数据同步暂停，其中，网络信号数据中包括在电子地图中的轨迹路径以及在该路径上各位置的网络质量参数等。Specifically, when a playback instruction is detected, the target panoramic video is sent to the front-end interface for playback, and the playback progress of the panoramic video on the front-end page is monitored in real time, and the network information corresponding to the currently displayed frame is called in real time according to the timestamp. The signal data is displayed on the front-end interface; when the pause of video playback is detected, the network signal data is suspended synchronously, wherein the network signal data includes the track path in the electronic map and the network quality parameters of each position on the path, etc. .
图3是根据本申请实施例提供的一种路测轨迹与视频帧画面同步播放界面的示意图，如图3所示，查看路测轨迹时，在选择某个轨迹点时(某帧视频画面)能同步调出该轨迹点的全景画面，以及在选择某帧视频画面能同步定位出相应轨迹点。Fig. 3 is a schematic diagram of a synchronous playback interface between a drive test track and a video frame picture provided according to an embodiment of the present application. As shown in Fig. 3, when viewing the drive test track, when a certain track point is selected (a certain frame of video picture) The panoramic picture of the track point can be called out synchronously, and the corresponding track point can be positioned synchronously when a certain frame of video picture is selected.
作为一种可选的实施方式，可以通过VR眼镜观看路测轨迹与视频帧画面，以实现沉浸式分析。As an optional implementation, the road test trajectory and video frame images can be viewed through VR glasses to achieve immersive analysis.
为了方便查看或远程获取路测数据，方法还包括以下步骤：将全景视频数据和网络信号数据存储至目标数据库，并依据存储至目标数据库的全景视频数据和网络信号数据的目标标识生成目录序列，其中，目标数据库包括以下至少之一：本地数据库、部署于云端的数据库。In order to facilitate viewing or remote acquisition of drive test data, the method also includes the following steps: storing the panoramic video data and network signal data in the target database, and generating a directory sequence according to the target identification of the panoramic video data and network signal data stored in the target database, Wherein, the target database includes at least one of the following: a local database and a database deployed on the cloud.
图4是根据本申请实施例提供的一种路测系统的存储方式的示意图，图5是根据本申请实施例提供的一种路测数据存储界面的示意图，如图4、图5所示，在本申请的一些实施例中，对采集的路测数据(网络信号数据和全景视频数据)进行本地存储和云端服务器存储，对于存储在云服务器上的数据，优化人员能够远程获取数据，从而实现DT/CQT测试的远程监视，达到远程监视、实时决策的效果。Fig. 4 is a schematic diagram of a storage mode of a drive test system provided according to an embodiment of the present application, and Fig. 5 is a schematic diagram of a storage interface of a drive test data provided according to an embodiment of the present application, as shown in Fig. 4 and Fig. 5 , In some embodiments of the present application, the collected drive test data (network signal data and panoramic video data) are stored locally and stored on the cloud server. For the data stored on the cloud server, the optimization personnel can remotely obtain the data, thereby realizing The remote monitoring of DT/CQT test achieves the effects of remote monitoring and real-time decision-making.
通过上述步骤，在相关路测技术之上嵌入了路测过程物理环境全景的视频采集功能，并将采集路测过程中的网络信号数据及测试环境的360度全景视频数据进行关联同步，可以远程实时监视路测过程，达到了对路测的远程实况分析并且精准定位的目的，进而解决了由于相关技术中仅能进行网络信号数据采集，无法获得测量时的物理环境数据，造成对网络信号质量问题的分析效率低、准确性差技术问题。Through the above steps, the video collection function of the physical environment panorama of the drive test process is embedded on the relevant drive test technology, and the network signal data collected during the drive test process and the 360-degree panoramic video data of the test environment are associated and synchronized, which can be remotely Real-time monitoring of the drive test process achieves the purpose of remote real-time analysis and precise positioning of the drive test, and then solves the problem of network signal quality caused by the fact that only network signal data collection can be performed in related technologies, and physical environment data during measurement cannot be obtained. The analysis of the problem is low in efficiency and poor in accuracy. Technical problems.
根据本申请实施例，还提供了一种路测分析系统的实施例。图6是根据本申请实施例提供的一种路测分析系统的结构示意图。如图6所示，该系统包括：路测设备60、图像采集设备62和处理器64，其中，According to an embodiment of the present application, an embodiment of a drive test analysis system is also provided. Fig. 6 is a schematic structural diagram of a drive test analysis system provided according to an embodiment of the present application. As shown in Figure 6, the system includes: a drive test device 60, an image acquisition device 62 and a processor 64, wherein,
路测设备60，用于采集目标路测路径的网络信号数据，其中，网络信号数据用于表征目标路测路径上各个轨迹点的网络信号质量情况；The drive test device 60 is configured to collect network signal data of the target drive test path, wherein the network signal data is used to represent the network signal quality of each track point on the target drive test path;
图像采集设备62，用于用于采集目标路测路径的全景视频数据，其中，全景视频数据用于表征目标路测路径的环境信息；The image acquisition device 62 is configured to collect panoramic video data of the target drive test route, wherein the panoramic video data is used to represent the environmental information of the target drive test route;
在本申请的一些实施例中，上述图像采集设备可以为360度全景相机。In some embodiments of the present application, the aforementioned image acquisition device may be a 360-degree panoramic camera.
处理器64，用于绑定目标路测路径的网络信号数据和全景视频数据；依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息果用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度。The processor 64 is used to bind the network signal data and panoramic video data of the target drive test path; associate each track point in the network signal data with each picture frame in the panoramic video data according to the time stamp; analyze the network of track points The signal data and the picture frame associated with the track point are used to obtain signal impact information, wherein the signal impact information is used to represent the influence degree of the surrounding environment of the track point on the network signal quality of the track point.
下面对上述路测分析系统做进一步介绍，图7是根据本申请实施例提供的一种路测分析系统的功能模块的示意图，如图7所示，上述路测分析系统按照功能模块划分可以分为：数据采集模块70、数据处理模块72和数据存储模块74，其中，The above-mentioned drive test analysis system is further introduced below. FIG. 7 is a schematic diagram of a functional module of a drive test analysis system provided according to an embodiment of the present application. As shown in FIG. 7, the above-mentioned drive test analysis system can be divided according to functional modules Divided into: data acquisition module 70, data processing module 72 and data storage module 74, wherein,
数据采集模块70中包括上述路测设备60和图像采集设备62，用于在路测时同步采集路测的网络信号数据以及路测时周围全景视频数据，启动路测使，路测设备和360度全景相机分别开始采集网络信号数据和全景视频数据，图8是根据本申请实施例提供的一种路测数据采集界面的示意图，如图8所示。在本实施例中，全景视频数据通过360全景相机进行采集，路测网络信号数据通过路测设备进行采集，路测设备上包括有用以同步连接360全景相机的端口。The data acquisition module 70 includes the above-mentioned drive test equipment 60 and image acquisition equipment 62, which are used to synchronously collect the network signal data of the drive test and the surrounding panoramic video data during the drive test, and start the drive test. The drive test equipment and 360 The panoramic camera starts to collect network signal data and panoramic video data respectively. FIG. 8 is a schematic diagram of a drive test data collection interface provided according to an embodiment of the present application, as shown in FIG. 8 . In this embodiment, the panoramic video data is collected by a 360 panoramic camera, and the drive test network signal data is collected by a drive test device, which includes a port for synchronously connecting to the 360 panoramic camera.
数据处理模块72，用于对采集回的网络信号数据和全景视频数据进行处理，具体地，绑定目标路测路径的网络信号数据和全景视频数据；依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息果用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度，实现了网络信号数据与全景视频数据的关联调用以及路测轨迹点与视频帧画面同步的功能。The data processing module 72 is used to process the collected network signal data and panoramic video data, specifically, bind the network signal data and panoramic video data of the target drive test path; according to the time stamp, each of the network signal data The track point is associated with each picture frame in the panoramic video data; the network signal data of the track point and the picture frame associated with the track point are analyzed to obtain signal influence information, wherein the signal influence information is used to represent the impact of the surrounding environment of the track point on the track The degree of influence of the network signal quality of the point realizes the associated call of the network signal data and the panoramic video data and the synchronization function of the drive test track point and the video frame.
数据存储模块74，对采集的路测数据(网络信号数据和全景视频数据)进行本地存储和云端服务器存储，对于存储在云服务器上的数据，优化人员能够远程获取数据，从而实现DT/CQT测试的远程监视，达到远程监视、实时决策的效果。The data storage module 74 is used for local storage and cloud server storage of the collected drive test data (network signal data and panoramic video data). For the data stored on the cloud server, optimization personnel can obtain data remotely, thereby realizing DT/CQT testing Remote monitoring to achieve the effect of remote monitoring and real-time decision-making.
本申请在相关路测技术之上嵌入了路测过程物理环境全景的视频采集功能，使得网络优化人员可以远程实时监视路测过程，对于存在网络问题的区域能够通过同时参考路测网络数据及视频数据来更加精准高效地定位问题区域的地理位置及问题原因，从而避免了优化人员多次勘察现场的问题，大大降低了时间成本和人力成本的投入。This application embeds the video collection function of the physical environment panorama of the drive test process on the relevant drive test technology, so that network optimization personnel can remotely monitor the drive test process in real time, and for areas with network problems, they can refer to the drive test network data and video at the same time. The data can be used to more accurately and efficiently locate the geographical location and cause of the problem area, thereby avoiding the problem of multiple on-site surveys by optimization personnel, and greatly reducing the investment in time and labor costs.
根据本申请实施例，还提供了一种路测分析装置的实施例。图9是根据本申请实施例提供的一种路测分析装置的结构示意图。如图9所示，该装置包括：According to an embodiment of the present application, an embodiment of a drive test analysis device is also provided. Fig. 9 is a schematic structural diagram of a drive test analysis device provided according to an embodiment of the present application. As shown in Figure 9, the device includes:
绑定模块90，用于绑定目标路测路径的网络信号数据和全景视频数据，其中，网络信号数据用于表征目标路测路径上各个轨迹点的网络信号质量情况，全景视频数据用于表征目标路测路径的环境信息；The binding module 90 is used to bind network signal data and panoramic video data of the target drive test path, wherein the network signal data is used to represent the network signal quality of each track point on the target drive test path, and the panoramic video data is used to represent Environmental information of the target drive test path;
关联模块92，用于依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；The association module 92 is used to associate each track point in the network signal data with each picture frame in the panoramic video data according to the time stamp;
分析模块94，用于分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息果用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度。The analysis module 94 is used to analyze the network signal data of the track point and the picture frame associated with the track point to obtain signal impact information, wherein the signal impact information is used to characterize the influence of the surrounding environment of the track point on the network signal quality of the track point degree.
需要说明的是，上述路测分析装置中的各个模块可以是程序模块(例如是实现某种特定功能的程序指令集合)，也可以是硬件模块，对于后者，其可以表现为以下形式，但不限于此：上述各个模块的表现形式均为一个处理器，或者，上述各个模块的功能通过一个处理器实现。It should be noted that each module in the above-mentioned drive test analysis device may be a program module (for example, a set of program instructions to realize a certain function), or a hardware module. For the latter, it may be expressed in the following form, but It is not limited thereto: each of the above-mentioned modules is represented by a processor, or the functions of the above-mentioned modules are implemented by a processor.
需要说明的是，本实施例中所提供的路测分析装置可用于执行图2所示的路测分析方法，因此，对上述路测分析方法的相关解释说明也适用于本申请实施例中，在此不再赘述。It should be noted that the drive test analysis device provided in this embodiment can be used to execute the drive test analysis method shown in FIG. 2 , therefore, the relevant explanations for the above drive test analysis method are also applicable to the embodiment of the present application. I won't repeat them here.
本申请实施例还提供了一种非易失性存储介质，非易失性存储介质包括存储的计算机程序，其中，非易失性存储介质所在设备通过运行计算机程序执行以下路测分析方法：绑定目标路测路径的网络信号数据和全景视频数据，其中，网络信号数据用于表征目标路测路径上各个轨迹点的网络信号质量情况，全景视频数据用于表征目标路测路径的环境信息；依据时间戳，将网络信号数据中的各个轨迹点与全景视频数据中各个画面帧进行关联；分析轨迹点的网络信号数据和与轨迹点关联的画面帧，得到信号影响信息，其中，信号影响信息用于表征轨迹点的周围环境对轨迹点的网络信号质量的影响程度。上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。The embodiment of the present application also provides a non-volatile storage medium. The non-volatile storage medium includes a stored computer program, wherein the device where the non-volatile storage medium is located executes the following drive test analysis method by running the computer program: binding Determine the network signal data and panoramic video data of the target drive test path, wherein the network signal data is used to represent the network signal quality of each track point on the target drive test path, and the panoramic video data is used to represent the environmental information of the target drive test path; According to the time stamp, associate each track point in the network signal data with each picture frame in the panoramic video data; analyze the network signal data of the track point and the picture frame associated with the track point, and obtain the signal influence information, among which, the signal influence information It is used to characterize the influence degree of the surrounding environment of the track point on the network signal quality of the track point. The serial numbers of the above embodiments of the present application are for description only, and do not represent the advantages and disadvantages of the embodiments.
在本申请的上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。In the above-mentioned embodiments of the present application, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.
在本申请所提供的几个实施例中，应该理解到，所揭露的技术内容，可通过其它的方式实现。其中，以上所描述的装置实施例仅仅是示意性的，例如所述单元的划分，可以为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，单元或模块的间接耦合或通信连接，可以是电性或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed technical content can be realized in other ways. Wherein, the device embodiments described above are only illustrative. For example, the division of the units may be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of units or modules may be in electrical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or part of the contribution to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions for enabling a computer device (which may be a personal computer, server or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disc, etc., which can store program codes. .
以上所述仅是本申请的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。The above description is only the preferred embodiment of the present application. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present application, some improvements and modifications can also be made. These improvements and modifications are also It should be regarded as the protection scope of this application.
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