CN114356753A - On-line loading interface protocol test configuration for airborne software - Google Patents
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Abstract
Description
技术领域technical field
本申请属于航空测控技术领域，尤其涉及一种机载软件在线加载接口协议测试构型。The application belongs to the technical field of aviation measurement and control, and in particular relates to a test configuration of an airborne software online loading interface protocol.
背景技术Background technique
飞机系统机载软件原位加载技术是指在控制器的控制下，通过相关总线获取软件目标码并完成各级控制器自身机载软件的在线加载。Aircraft system on-board software in-situ loading technology means that under the control of the controller, the software target code is obtained through the relevant bus and the on-line loading of the on-board software of the controllers at all levels is completed.
其中，一级控制器完成在线加载相关请求的处理，对自身和二级控制器的加载过程进行管控。二级控制器在一级控制器的引导下，通过飞管1394总线获取软件目标码完成自身软件加载。Among them, the first-level controller completes the processing of online loading related requests, and controls the loading process of itself and the second-level controller. Under the guidance of the first-level controller, the secondary controller obtains the software object code through the flight tube 1394 bus to complete its own software loading.
机载软件在线加载功能还在不断进行功能更新和升级，为保证飞机的在线加载功能正确实施，保证在线加载接口协议与期望的一致性，需要对各级控制器的在线加载软件功能和接口协议进行测试，缺少有效的测试环境。The online loading function of the airborne software is still undergoing functional updates and upgrades. In order to ensure the correct implementation of the online loading function of the aircraft and the consistency of the online loading interface protocol with expectations, it is necessary to update the online loading software functions and interface protocols of the controllers at all levels. For testing, there is a lack of an effective test environment.
本申请创新地提出一种基于1394总线在线加载接口协议测试环境，可支持各级控制器在线加载接口协议测试。The present application innovatively proposes an online loading interface protocol test environment based on the 1394 bus, which can support the online loading interface protocol testing of controllers at all levels.
发明内容SUMMARY OF THE INVENTION
针对上述技术问题，本申请提供了一种机载软件在线加载接口协议测试构型，包括：In view of the above technical problems, the present application provides an airborne software online loading interface protocol test configuration, including:
仿真计算机，设置有专用测试软件；其中，所述专用测试软件具有仿真在线加载功能；The simulation computer is provided with special test software; wherein, the special test software has the function of simulation online loading;
总线电缆,与所述仿真计算机连接；A bus cable, connected with the simulation computer;
总线数据记录与分析设备,与所述总线电缆连接；其中，所述总线数据记录与分析设备用于接收总线网络上的数据，并显示所述数据；A bus data recording and analysis device, connected with the bus cable; wherein, the bus data recording and analysis device is used to receive data on the bus network and display the data;
被测控制器,与所述总线电缆连接。The controller under test is connected with the bus cable.
优选地，所述仿真计算机,具备总线仿真板卡；Preferably, the simulation computer has a bus simulation board;
其中，所述总线电缆通过所述总线仿真板卡与所述仿真计算机连接。Wherein, the bus cable is connected with the emulation computer through the bus emulation board.
优选地，所述被测控制器具备基础运行环境；所述基础运行环境包括专用电源和断线箱。Preferably, the controller under test has a basic operating environment; the basic operating environment includes a dedicated power supply and a disconnect box.
优选地，所述总线仿真卡包括1394总线仿真卡。Preferably, the bus emulation card includes a 1394 bus emulation card.
优选地，所述总线电缆包括1394总线电缆。Preferably, the bus cable comprises a 1394 bus cable.
优选地，所述总线仿真卡与所述总线电缆相互匹配。Preferably, the bus emulation card and the bus cable are matched with each other.
优选地，所述专用测试软件还具备1394仿真板卡配置、数据收发、总线配置表解析、ICD加载、用户交互以及故障注入的功能。Preferably, the dedicated test software also has the functions of 1394 emulation board configuration, data transmission and reception, bus configuration table analysis, ICD loading, user interaction and fault injection.
优选地，所述总线仿真板卡具有RN模式和CC模式。Preferably, the bus emulation board has RN mode and CC mode.
本申请的有益技术效果：Beneficial technical effects of this application:
本申请能够测试飞机各级控制器的在线加载软件功能，验证在线加载软件接口协议对正常及异常情况的处理是否完善、封闭，填补了机载软件在线加载接口协议测试环境的空白，保证软件质量。This application can test the online loading software function of aircraft controllers at all levels, and verify whether the online loading software interface protocol handles normal and abnormal situations in a complete and closed manner. .
附图说明Description of drawings
图1为本申请实施例提供的一种机载软件在线加载接口协议测试构型的示意图。FIG. 1 is a schematic diagram of a test configuration of an airborne software online loading interface protocol provided by an embodiment of the present application.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部实施例。基于本发明中的实施例，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，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
请参阅图1,本申请提供的一种基于1394总线在线加载接口协议测试环境，建立测试所需硬件构型，在线加载专用仿真软件仿真各级控制器的在线加载软件功能以及各类故障注入功能，用于支持被测控制器在线加载软件功能和接口协议的双V测试，提高测试覆盖率。Please refer to FIG. 1, a kind of online loading interface protocol test environment based on 1394 bus provided by this application, establishes the hardware configuration required for the test, online loading special simulation software to simulate the online loading software function and various fault injection functions of the controllers at all levels , which is used to support the dual-V test of the online loading software function and interface protocol of the controller under test to improve the test coverage.
在本申请是实例中,一种基于1394总线在线加载接口协议测试环境，步骤如下：This application is an example, a kind of online loading interface protocol test environment based on 1394 bus, the steps are as follows:
a)建立测试所需硬件条件，硬件包括仿真计算机、1394仿真板卡、1394总线电缆、被测控制器及其必要工作环境、总线数据记录与分析设备。1394仿真板卡置于仿真计算机内，通过1394总线电缆与被测控制器连接，被测控制器由其必要的工作环境提供电源、IO接口等，总线数据记录与分析设备通过1394总线电缆连接至被测控制器与仿真计算机的连接环境中。a) Establish the hardware conditions required for the test. The hardware includes a simulation computer, a 1394 simulation board, a 1394 bus cable, the controller under test and its necessary working environment, and bus data recording and analysis equipment. The 1394 emulation board is placed in the emulation computer and connected to the controller under test through the 1394 bus cable. The controller under test provides power, IO interface, etc. from its necessary working environment, and the bus data recording and analysis equipment is connected to the controller through the 1394 bus cable. In the connection environment of the controller under test and the simulation computer.
b)建立测试所需软件条件，软件为在线加载功能专用测试软件，具备1394仿真板卡配置、数据收发、总线配置表解析、接口控制文件(interface control document，ICD)加载、在线加载功能仿真、用户交互界面以及故障注入功能。b) Establish the software conditions required for the test. The software is a special test software for the online loading function. It has 1394 emulation board configuration, data transmission and reception, bus configuration table analysis, interface control document (ICD) loading, online loading function simulation, User interface and fault injection function.
c)根据被测控制器的类型，加载相应的总线配置表与ICD，完成总线上数据包的收发属性设置，包括消息ID、包大小、发送偏移、余度分支等，完成数据包具体的接口定义设置，包括字节偏移、字内偏移、信号位长、信号名称、信号ID、数据类型、初始值等信息。c) According to the type of the controller under test, load the corresponding bus configuration table and ICD, complete the sending and receiving attribute settings of data packets on the bus, including message ID, packet size, sending offset, margin branch, etc. Interface definition settings, including byte offset, word offset, signal bit length, signal name, signal ID, data type, initial value and other information.
d)针对一级控制器的测试，在线加载功能专用测试软件运行在RN模式下，可模拟单个或多个二级控制器与之交互。软件通过识别1394总线上收到的STOF包判断1394仿真板卡各节点仿真的二级控制器所在的余度和总线，按照加载的总线配置表和ICD进行总线数据收发。RN模式下，在线加载功能仿真包括模式切换、指令响应、加载方式选择、镜像擦除标志管理以及故障注入。软件根据选择的指令响应方式进行自动或手动的模式切换，根据选择的加载方式，模拟传输完成后固化或边传输边固化，且可对加载过程中的各阶段设置执行/不执行，对单个或多个数据设置更新/不更新，对所有仿真的数据均可进行修改。测试过程中产生的总线数据由总线数据记录与分析设备记录，通过分析一级控制器与仿真软件之间的交互数据，对一级控制器的在线加载功能进行验证。d) For the test of the first-level controller, the dedicated test software for the online loading function runs in the RN mode, which can simulate the interaction of single or multiple second-level controllers. The software judges the redundancy and bus of the secondary controller emulated by each node of the 1394 emulation board by identifying the STOF packet received on the 1394 bus, and performs bus data transmission and reception according to the loaded bus configuration table and ICD. In RN mode, the online loading function simulation includes mode switching, command response, loading mode selection, image erasure flag management and fault injection. The software performs automatic or manual mode switching according to the selected command response method. According to the selected loading method, it can be cured after the simulated transmission is completed or cured while being transmitted, and can be set to execute/not execute for each stage in the loading process. Multiple data settings are updated/not updated, and all simulated data can be modified. The bus data generated during the test is recorded by the bus data recording and analysis equipment, and the online loading function of the first-level controller is verified by analyzing the interactive data between the first-level controller and the simulation software.
e)针对二级控制器的测试，在线加载功能专用测试软件运行在CC模式下，模拟一级控制器与之交互。通过人工选择1394仿真板卡各节点对应的余度和总线，完成节点的端口配置，发送STOF包并按照加载的总线配置表和ICD进行总线数据收发。CC模式下，在线加载功能仿真包括指令发送、模式切换、状态显示以及故障注入。软件根据人工选择的进入、执行加载或退出操作，向二级控制器发起相应的指令，自动完成自身模式切换。软件根据选择的加载方式，对加载过程中的单个或多个数据设置更新/不更新，对所有仿真的数据均可进行修改。状态显示界面展示一、二级控制器的系统模式状态、加载状态与进度、镜像擦除状态。测试过程中产生的总线数据由总线数据记录与分析设备记录，通过分析二级控制器与仿真软件之间的交互数据，对二级控制器的在线加载功能进行验证。e) For the test of the secondary controller, the special test software for online loading function runs in CC mode, simulating the interaction of the primary controller. By manually selecting the redundancy and bus corresponding to each node of the 1394 emulation board, the port configuration of the node is completed, the STOF packet is sent, and the bus data is sent and received according to the loaded bus configuration table and ICD. In CC mode, the online loading function simulation includes command sending, mode switching, status display and fault injection. The software initiates corresponding instructions to the secondary controller according to the manually selected entry, execution load or exit operation, and automatically completes its own mode switching. According to the selected loading method, the software can set update/non-update for single or multiple data during the loading process, and all simulated data can be modified. The status display interface displays the system mode status, loading status and progress, and mirror erasing status of the primary and secondary controllers. The bus data generated during the test is recorded by the bus data recording and analysis equipment, and the online loading function of the secondary controller is verified by analyzing the interactive data between the secondary controller and the simulation software.
需要说明的是,通过本申请能够测试飞机各级控制器的在线加载软件功能，验证在线加载软件接口协议对正常及异常情况的处理是否完善、封闭，填补了机载软件在线加载接口协议测试环境的空白，保证软件质量。并且,本申请已用于某型飞机一、二级控制器在线加载软件的双V测试。It should be noted that this application can test the online loading software function of the aircraft controllers at all levels, verify whether the online loading software interface protocol handles normal and abnormal situations in a complete and closed manner, and fills the airborne software online loading interface protocol test environment. blank to ensure software quality. Moreover, this application has been used for the double-V test of the online loading software of the primary and secondary controllers of a certain type of aircraft.
下面结合附图对本发明的具体实施方式做进一步说明。The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.
本发明机载软件在线加载接口协议测试环境的硬件连接示意图如图1所示，具体实施步骤如下：The hardware connection schematic diagram of the airborne software online loading interface protocol test environment of the present invention is shown in Figure 1, and the specific implementation steps are as follows:
a)按照图1所示的硬件构型搭建测试环境，仿真计算机运行在线加载功能专用测试软件。a) Build a test environment according to the hardware configuration shown in Figure 1, and simulate the computer to run the dedicated test software for the online loading function.
b)加载与被测控制器相关的总线配置表与ICD，完成总线上数据包的收发属性设置。b) Load the bus configuration table and ICD related to the controller under test, and complete the setting of the sending and receiving attributes of data packets on the bus.
c)针对一级控制器的测试，在线加载功能专用测试软件运行在RN模式下，模拟单个或多个二级控制器与一级控制器交互。软件通过识别1394总线上收到的STOF包判断1394仿真板卡各节点仿真的二级控制器所在的余度和总线，按照加载的总线配置表和ICD进行总线数据收发。人工选择指令响应方式，对仿真软件进行自动或手动的模式切换设置。人工选择RN的加载方式，边缓存边固化或缓存完再固化。在加载过程中的各阶段分别设置执行/不执行，对加载关键数据设置更新/不更新，以测试一级控制器在线加载软件接口协议对正常和异常情况的响应。c) For the test of the first-level controller, the dedicated test software for the online loading function runs in the RN mode, simulating the interaction of a single or multiple second-level controllers with the first-level controller. The software judges the redundancy and bus of the secondary controller emulated by each node of the 1394 emulation board by identifying the STOF packet received on the 1394 bus, and performs bus data transmission and reception according to the loaded bus configuration table and ICD. Manually select the command response mode, and perform automatic or manual mode switching settings for the simulation software. Manually select the loading method of RN, and solidify while caching or solidify after caching. In each stage of the loading process, set the execution/non-execution, and set the update/non-update for the loading key data to test the response of the first-level controller online loading software interface protocol to normal and abnormal conditions.
d)针对二级控制器的测试，在线加载功能专用测试软件运行在CC模式下，模拟一级控制器与二级控制器之间的交互。通过人工选择1394仿真板卡各节点对应的余度和总线，完成节点的端口配置，发送STOF包并按照加载的总线配置表和ICD进行总线数据收发。CC模式下，人工选择的进入、执行加载或和退出操作，向二级控制器发起相应的指令，软件自动完成自身模式切换。人工对加载过程传输阶段的数据设置更新/不更新，对关键加载数据进行故障设置，以测试二级控制器在线加载软件接口协议对正常和异常情况的响应。d) For the test of the secondary controller, the dedicated test software for the online loading function runs in CC mode to simulate the interaction between the primary controller and the secondary controller. By manually selecting the redundancy and bus corresponding to each node of the 1394 emulation board, the port configuration of the node is completed, the STOF packet is sent, and the bus data is sent and received according to the loaded bus configuration table and ICD. In CC mode, the manual selection of entry, load or exit operations initiates corresponding instructions to the secondary controller, and the software automatically completes its own mode switching. Manually update/not update the data settings in the transmission stage of the loading process, and perform fault settings for key loading data to test the response of the secondary controller online loading software interface protocol to normal and abnormal conditions.
以上所述，仅为本发明的具体实施例，对本发明进行详细描述，未详尽部分为常规技术。但本发明的保护范围不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。本发明的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present invention, and describe the present invention in detail, and the non-detailed parts are conventional techniques. However, the protection scope of the present invention is not limited to this. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be included within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
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