CN114741248A - A spaceborne computer detection system - Google Patents
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Abstract
Description
技术领域technical field
本申请涉及空间飞行器技术领域,尤其是涉及一种星载计算机检测系统。The present application relates to the technical field of space vehicles, and in particular, to an on-board computer detection system.
背景技术Background technique
星载计算机通常指的是卫星等空间飞行器的星上电子系统的核心控制系统,卫星在轨工作过程中的运行保障、任务规划、数据调度等任务,均有星载计算机完成。由于卫星电子系统的任务类型多、数据复杂度高,导致星载计算机通常具备多种速率要求、多种信号类型的复杂的数据接口,此外相同的数据接口可能包括多种不同的数据协议约定。The onboard computer usually refers to the core control system of the on-board electronic system of the satellite and other space vehicles. The tasks such as operation guarantee, task planning, and data scheduling during the satellite's in-orbit work are all completed by the onboard computer. Due to the variety of tasks and high data complexity of satellite electronic systems, onboard computers usually have complex data interfaces with multiple speed requirements and multiple signal types. In addition, the same data interface may include a variety of different data protocol conventions.
而对于星载计算机的传统测试方法,通常是按照星载计算机上不同接口的要求和数据约定来采用不同的外部工具来进行测试,这种测试方法会消耗较多的资源设备成本且测试效率较低,且随着目前数字电路的发展,星载计算机中电路的集成度变高、主板面积降低,导致星载计算机接口线路的密度有所提升,导致单一接口测试的难度也有所提高,且星载计算机在完成和处理星上任务的过程中,会存在各种接口数据联动的情况,这样使得使用传统的外部工具对单一接口的连接进行检测的方法,并不能完全模拟整个星载计算机的工作状态。For the traditional testing method of the onboard computer, different external tools are usually used for testing according to the requirements of different interfaces and data conventions on the onboard computer. This testing method consumes more resources and equipment costs and has higher test efficiency. With the development of the current digital circuit, the integration of the circuit in the onboard computer has become higher and the area of the main board has been reduced, resulting in an increase in the density of the interface line of the onboard computer, and the difficulty of testing a single interface has also increased. When the onboard computer completes and processes onboard tasks, there will be various interface data linkages, so that the method of using traditional external tools to detect the connection of a single interface cannot completely simulate the work of the entire onboard computer. state.
发明内容SUMMARY OF THE INVENTION
有鉴于此,本申请的目的在于提供一种星载计算机检测系统,本申请能够模拟整个星载计算机在不同工作状态下,能够通过单板测试板卡实现对星载计算机的各个应用功能进行测试,在提高了测试效率并缩减了测试成本的同时,加快了星载计算机设计过程中排查出错误设计和异常状态的进度。In view of this, the purpose of this application is to provide an on-board computer detection system, which can simulate the entire on-board computer under different working states, and can test each application function of the on-board computer through a single-board test board. , while improving the test efficiency and reducing the test cost, it also speeds up the progress of checking out erroneous designs and abnormal states in the design process of the on-board computer.
本申请实施例提供了一种星载计算机检测系统,所述星载计算机检测系统包括星载计算机和单板测试板卡,所述单板测试板卡包括多个第一数据接口和核心控制器,所述第一数据接口与所述星载计算机的第二数据接口堆栈式对插连接;其中,An embodiment of the present application provides an on-board computer detection system, the on-board computer detection system includes an on-board computer and a single-board test board, and the single-board test board includes a plurality of first data interfaces and a core controller , the first data interface is connected to the second data interface of the onboard computer in a stack-type plug-and-socket manner; wherein,
所述核心控制器,用于模拟所述星载计算机在工作模式下的各种环境状态信号,并通过所述第一数据接口将对应的所述环境状态信号发送至所述星载计算机,以及基于接收到的所述星载计算机发送的数据反馈信号确定所述星载计算机的应用功能是否出现异常;The core controller is used to simulate various environmental status signals of the onboard computer in the working mode, and send the corresponding environmental status signals to the onboard computer through the first data interface, and Determine whether the application function of the onboard computer is abnormal based on the received data feedback signal sent by the onboard computer;
所述星载计算机,用于对所述环境状态信号进行处理,得到所述数据反馈信号,并将所述数据反馈信号通过所述第二数据接口发送至所述核心控制器。The onboard computer is configured to process the environmental state signal to obtain the data feedback signal, and send the data feedback signal to the core controller through the second data interface.
进一步的,所述第一数据接口包括以下至少一个接口:Further, the first data interface includes at least one of the following interfaces:
第一RS422接口、第一CAN总线接口、第一AD接口、DA接口、USB接口。The first RS422 interface, the first CAN bus interface, the first AD interface, the DA interface, and the USB interface.
进一步的,所述第二数据接口包括第二AD接口,所述环境状态信号包括温度模拟信号;所述应用功能包括控温功能,其中,Further, the second data interface includes a second AD interface, the environmental state signal includes a temperature analog signal; the application function includes a temperature control function, wherein,
所述核心控制器,用于利用所述第二AD接口向所述星载计算机发送所述温度模拟信号,以及基于接收到的所述星载计算机发送的温度反馈信号确定所述星载计算机的所述控温功能是否异常;The core controller is configured to use the second AD interface to send the temperature analog signal to the onboard computer, and determine the temperature of the onboard computer based on the received temperature feedback signal sent by the onboard computer. Whether the temperature control function is abnormal;
所述星载计算机,用于对所述温度模拟信号进行处理,得到所述温度反馈信号。The onboard computer is used for processing the temperature analog signal to obtain the temperature feedback signal.
进一步的,所述核心控制器,用于利用所述第二AD接口向所述星载计算机发送所述温度模拟信号,包括:Further, the core controller is configured to use the second AD interface to send the temperature simulation signal to the onboard computer, including:
所述核心控制器,用于通过DA接口将温度模拟信号发送至星载计算机的第二AD接口,并利用所述第二AD接口向所述星载计算机发送所述温度模拟信号。The core controller is configured to send the temperature analog signal to the second AD interface of the onboard computer through the DA interface, and use the second AD interface to send the temperature analog signal to the onboard computer.
进一步的,所述第二数据接口还包括第二CAN总线接口和第二RS422接口,所述环境状态信号还包括CAN总线模拟信号;其中,Further, the second data interface further includes a second CAN bus interface and a second RS422 interface, and the environmental status signal further includes a CAN bus analog signal; wherein,
所述核心控制器,用于利用所述第二CAN总线接口向所述星载计算机发送所述CAN总线模拟信号,以及基于接收到的所述星载计算机发送的打包反馈信号,确定所述星载计算机的所述第二CAN总线接口和所述第二RS422接口是否异常;The core controller is configured to use the second CAN bus interface to send the CAN bus analog signal to the onboard computer, and determine the satellite based on the received packaged feedback signal sent by the onboard computer. Whether the second CAN bus interface and the second RS422 interface of the onboard computer are abnormal;
所述星载计算机,用于对所述CAN总线模拟信号进行处理,得到打包反馈信号,以及将所述打包反馈信号通过串口数据接口发送至所述核心控制器。The onboard computer is used to process the CAN bus analog signal to obtain a packaged feedback signal, and send the packaged feedback signal to the core controller through a serial port data interface.
进一步的,所述核心控制器,具体用于根据以下步骤确定所述星载计算机的所述第二CAN总线接口和所述第二RS422接口是否异常:Further, the core controller is specifically configured to determine whether the second CAN bus interface and the second RS422 interface of the onboard computer are abnormal according to the following steps:
针对接收到的所述星载计算机发送的打包反馈信号进行分包和解析处理,生成解析反馈信号;Subcontract and analyze the received packaged feedback signal sent by the onboard computer to generate an analysis feedback signal;
根据所述解析反馈信号的标签信息和CAN总线模拟信号的标签信息,判断所述解析反馈信号和所述CAN总线模拟信号是否一致;According to the label information of the analysis feedback signal and the label information of the CAN bus analog signal, determine whether the analysis feedback signal is consistent with the CAN bus analog signal;
若是,则确定所述第二CAN总线接口和所述第二RS422接口均正常。If so, it is determined that both the second CAN bus interface and the second RS422 interface are normal.
进一步的,所述环境状态信号还包括电压模拟信号,所述应用功能包括电压检测功能;其中,Further, the environmental status signal further includes a voltage analog signal, and the application function includes a voltage detection function; wherein,
所述核心控制器,用于利用所述第二AD接口向所述星载计算机发送所述电压模拟信号,以及基于接收到的所述星载计算机发送的电压反馈信号确定所述星载计算机的所述电压检测功能是否异常;The core controller is configured to use the second AD interface to send the voltage analog signal to the onboard computer, and determine the voltage feedback signal of the onboard computer based on the received voltage feedback signal sent by the onboard computer. Whether the voltage detection function is abnormal;
所述星载计算机,用于对所述电压模拟信号进行处理,得到所述电压反馈信号。The onboard computer is used for processing the voltage analog signal to obtain the voltage feedback signal.
进一步的,所述电压反馈信号为所述星载计算机通过第二CAN总线接口反馈的包含标记位的电压信号;所述核心控制器,用于根据以下步骤确定所述电压检测功能是否异常:Further, the voltage feedback signal is a voltage signal including a flag bit fed back by the onboard computer through the second CAN bus interface; the core controller is used to determine whether the voltage detection function is abnormal according to the following steps:
根据所述标记位的数字信息以及位置信息,确定所述星载计算机的所述电压检测功能是否异常。Whether the voltage detection function of the onboard computer is abnormal is determined according to the digital information and position information of the marker bit.
进一步的,所述单板测试板卡还包括电阻分压电路,所述电阻分压电路与所述第一AD接口相连,所述电阻分压电路用于模拟所述星载计算机在工作模式下对应的不同电压值的电压模拟信号。Further, the single-board test board also includes a resistance voltage divider circuit, the resistance voltage divider circuit is connected to the first AD interface, and the resistance voltage divider circuit is used to simulate the onboard computer in the working mode. Corresponding voltage analog signals of different voltage values.
进一步的,所述USB接口与外部终端设备相连接;其中,Further, the USB interface is connected with an external terminal device; wherein,
所述USB接口,用于将数据反馈信号发送至外部终端设备;The USB interface is used to send the data feedback signal to an external terminal device;
所述外部终端设备,用于基于接收的所述USB接口发送的所述数据反馈信号绘制检测波形图。The external terminal device is configured to draw a detection waveform diagram based on the received data feedback signal sent by the USB interface.
本申请实施例提供的星载计算机检测系统,与现有技术相比,本申请提供的实施例能够模拟整个星载计算机在不同工作状态下,能够通过单板测试板卡实现对星载计算机的各个应用功能进行测试,在提高了测试效率并缩减了测试成本的同时,加快了星载计算机设计过程中排查出错误设计和异常状态的进度。Compared with the prior art, the on-board computer detection system provided by the embodiments of the present application can simulate the entire on-board computer under different working states, and can realize the detection of the on-board computer through a single-board test board. Testing each application function not only improves the test efficiency and reduces the test cost, but also speeds up the process of checking out the wrong design and abnormal state in the design process of the on-board computer.
为使本申请的上述目的、特征和优点能更明显易懂,下文特举较佳实施例,并配合所附附图,作详细说明如下。In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are exemplified below, and are described in detail as follows in conjunction with the accompanying drawings.
附图说明Description of drawings
为了更清楚地说明本申请实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本申请的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following drawings will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.
图1示出了本申请实施例所提供的一种星载计算的检测系统的结构框图;1 shows a structural block diagram of a detection system for on-board computing provided by an embodiment of the present application;
图2示出了本申请实施例所提供的一种星载计算的检测系统中USB接口设计的结构框图;2 shows a structural block diagram of a USB interface design in a detection system for on-board computing provided by an embodiment of the present application;
图3示出了本申请实施例所提供的一种星载计算的检测系统中电阻分压电路的结构框图;3 shows a structural block diagram of a resistance voltage divider circuit in a detection system for on-board calculation provided by an embodiment of the present application;
图4示出了本申请实施例所提供的一种星载计算的检测系统中单板测试板卡的结构框图。FIG. 4 shows a structural block diagram of a single-board testing board in a detection system for on-board computing provided by an embodiment of the present application.
图中:In the picture:
10-星载计算机检测系统;100-单板测试板卡;110-核心控制器;111-可编程控制芯片;1111-微控制器;1112-逻辑资源处理子芯片;112-电平匹配芯片;120-第一数据接口;130-电阻分压电路;R1-第一电阻;R2-第二电阻;U-供电电源;200-星载计算机;210-第二数据接口。10- on-board computer detection system; 100- single-board test board; 110- core controller; 111- programmable control chip; 1111- microcontroller; 1112- logic resource processing sub-chip; 112- level matching chip; 120-first data interface; 130-resistor voltage divider circuit; R1-first resistance; R2-second resistance; U-power supply; 200-onboard computer; 210-second data interface.
具体实施方式Detailed ways
为使本申请实施例的目的、技术方案和优点更加清楚,下面将结合本申请实施例中附图,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实施例,而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。因此,以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围,而是仅仅表示本申请的选定实施例。基于本申请的实施例,本领域技术人员在没有做出创造性劳动的前提下所获得的每个其他实施例,都属于本申请保护的范围。In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but is merely representative of selected embodiments of the application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art without creative work falls within the protection scope of the present application.
首先,经研究发现,现有技术中对于星载计算机的传统测试方法,通常是按照星载计算机上不同接口的要求和数据约定来采用不同的外部工具来进行测试,这种测试方法会消耗较多的资源设备成本且测试效率较低,且随着目前数字电路的发展,星载计算机中电路的集成度变高、主板面积降低,导致星载计算机接口线路的密度有所提升,导致单一接口测试的难度也有所提高,且星载计算机在完成和处理星上任务的过程中,会存在各种接口数据联动的情况,这样使得使用传统的外部工具对单一接口的连接进行检测的方法,并不能完全模拟整个星载计算机的工作状态。First of all, after research, it is found that the traditional testing methods for on-board computers in the prior art usually use different external tools for testing according to the requirements of different interfaces and data conventions on the on-board computers. The cost of many resources and equipment is low and the test efficiency is low. With the current development of digital circuits, the integration of the circuit in the onboard computer has become higher and the area of the main board has been reduced, resulting in an increase in the density of the interface line of the onboard computer, resulting in a single interface. The difficulty of testing has also increased, and in the process of completing and processing on-board tasks, the onboard computer will have various interface data linkages, which makes it possible to use traditional external tools to detect the connection of a single interface. The working state of the entire onboard computer cannot be completely simulated.
基于此,本申请实施例提供了一种星载计算机检测系统,能够模拟整个星载计算机在不同工作状态下,能够通过单板测试板卡实现对星载计算机的各个应用功能进行测试,在提高了测试效率并缩减了测试成本的同时,加快了星载计算机设计过程中排查出错误设计和异常状态的进度。Based on this, the embodiments of the present application provide an on-board computer detection system, which can simulate the entire on-board computer under different working states, and can test various application functions of the on-board computer through a single-board test board. While improving the test efficiency and reducing the test cost, it also speeds up the progress of troubleshooting the wrong design and abnormal state in the design process of the on-board computer.
请参阅图1,图1为本申请实施例所提供的一种星载计算机检测系统的结构框图。所如图1中所示,本申请实施例提供的星载计算机检测系统10包括星载计算机200和单板测试板卡100,所述单板测试板卡100包括多个第一数据接口120和核心控制器110,所述第一数据接口120与所述星载计算机200的第二数据接口210堆栈式对插连接。Please refer to FIG. 1. FIG. 1 is a structural block diagram of an on-board computer detection system provided by an embodiment of the present application. Therefore, as shown in FIG. 1 , the onboard computer detection system 10 provided by the embodiment of the present application includes an onboard computer 200 and a single-board test board 100 , and the single-board test board 100 includes a plurality of first data interfaces 120 and In the core controller 110 , the
上述具体实施方式中,星载计算机检测系统10中的星载计算机200即为空间飞行器上的核心控制系统,且星载计算机检测系统10中包括的单板测试板卡100为可以检测星载计算机200中各个接口的配置数据和各个接口的功能数据,以及可以检测星载计算机200在执行不同的飞行任务时的处理配置数据,且单板测试板卡100本身具有独立运行和可编程条件,相比于星载计算机200,单板测试板卡100相当于由星载计算进行主动控制的下位机检设备,且具体连接方式为:星载计算机通过第二数据接口210与单板测试板卡100的第一数据接口120堆栈式对插连接,便于星载计算机与单板测试板卡100之间的数据交互。In the above-mentioned specific embodiment, the on-board computer 200 in the on-board computer detection system 10 is the core control system on the spacecraft, and the single-board test board 100 included in the on-board computer detection system 10 is capable of detecting the on-board computer. The configuration data of each interface in 200 and the function data of each interface, as well as the processing configuration data of the onboard computer 200 when performing different flight tasks can be detected, and the single-board test board 100 itself has independent operation and programmable conditions. Compared with the onboard computer 200 , the single-board testing board 100 is equivalent to a lower-level computer inspection device actively controlled by on-board computing, and the specific connection method is: the on-board computer communicates with the single-board testing board 100 through the second data interface 210 The
上述中,单板测试板卡100按照实际使用场景进行相应的数据流设计,并通过多种类型的第一数据接口120发送模拟星载计算机200在工作模式下的各种环境状态信号给星载计算机200,用于模拟卫星工作中,真实的应用分系统与星载计算机200之间的数据交互过程,并根据上述模拟过程中,星载计算机200的状态表现以及任务处理结果等,判断星载计算机200的配置数据以及第二接口的功能数据等是否出现异常。In the above, the single-board test board 100 performs the corresponding data flow design according to the actual use scenario, and sends various environmental status signals simulating the onboard computer 200 in the working mode to the onboard through the various types of first data interfaces 120. The computer 200 is used to simulate the data interaction process between the real application subsystem and the onboard computer 200 during the satellite operation, and judge the onboard computer 200 according to the state performance of the onboard computer 200 and the task processing results during the above simulation process. Whether the configuration data of the computer 200 and the function data of the second interface are abnormal.
这里,单板测试板卡100的尺寸是按照星载计算机200的实际尺寸进行堆栈式对插设计的,因此,单板测试板卡100可以模拟星载计算机200的实际安装条件,并可与星载计算机200一同进行各种相关的环境试验,便于验收测试。Here, the size of the single-board test board 100 is designed for stacking according to the actual size of the onboard computer 200. Therefore, the single-board test board 100 can simulate the actual installation conditions of the onboard computer 200, and can be compatible with the onboard computer 200. The on-board computer 200 carries out various related environmental tests together to facilitate acceptance testing.
其中,星载计算机200用于保障空间飞行器在轨工作过程中的运行状态、任务规划以及数据调度等,且星载计算机200中的第二数据接口210至少包括第二RS422接口、第二CAN总线接口以及第二AD接口等,且星载计算机200的任务工作模式中包含多种第二数据接口210联动的情况。Wherein, the onboard computer 200 is used to ensure the operation status, task planning and data scheduling of the spacecraft during the on-orbit operation, and the second data interface 210 in the onboard computer 200 at least includes a second RS422 interface, a second CAN bus interface and the second AD interface, etc., and the task working mode of the onboard computer 200 includes a variety of situations in which the second data interface 210 is linked.
这里,举一个具体实施例说明多种第二数据接口210联动的任务工作模式,如下所示:Here, a specific embodiment is given to illustrate the task working modes of the linkage of various second data interfaces 210, as follows:
例如,第二CAN总线接口在将接收到的任务数据打包处理后,接收到数据发送指令,需要将上述打包处理后的任务数据从第二RS422接口传输特定格式的数据,并按照第二RS422接口的接口协议对接收数据的解析,这样,会改变改变某些OC端口的逻辑值,即本申请提供的实施例中的第二RS422接口,这里,OC端口是输出比较端口,对于管脚来说是输出。可以设定为到计数输出高电平或者是输出低电平,这个主要用于输出脉冲。For example, after the second CAN bus interface packages the received task data and receives a data sending instruction, the packaged task data needs to be transmitted in a specific format from the second RS422 interface, and according to the second RS422 interface The analysis of the received data by the interface protocol of the interface protocol, in this way, the logical value of some OC ports will be changed, that is, the second RS422 interface in the embodiment provided by this application. Here, the OC port is an output comparison port. is the output. It can be set to count output high level or output low level, which is mainly used for output pulse.
其中,所述核心控制器,用于模拟所述星载计算机200在工作模式下的各种环境状态信号,并通过所述第一数据接口120将对应的所述环境状态信号发送至所述星载计算机200,以及基于接收到的所述星载计算机200发送的数据反馈信号确定所述星载计算机200的应用功能是否出现异常。The core controller is used to simulate various environmental status signals of the onboard computer 200 in the working mode, and send the corresponding environmental status signals to the satellite through the
上述具体实施方式中,单板测试板卡100中的核心控制器110为采用FPGA SoC芯片实现的,核心控制器同时具备FPGA逻辑资源与微控制器1111处理资源,且单板测试板卡100通过内部的微控制器1111处理资源设计并模拟外部应用单机设备在星载计算机200的工作模式下的各种环境状态信号,并设计相关环境状态信号对应的功能算法,并将表征各种类型功能数据的各种环境状态信号由微控制器1111发送单板测试板卡100内部的逻辑资源处理子芯片1112,并将所述各种环境状态信号由逻辑资源处理子芯片1112经由第一数据接口120发送给星载计算机200。In the above specific implementation manner, the core controller 110 in the single-board test board 100 is implemented by using an FPGA SoC chip, the core controller has both FPGA logic resources and the processing resources of the
FPGA SoC芯片能够满足众多第一数据接口120功能的逻辑实现和数据运算,且FPGA的并行时序设计能力可以协调各个第一数据接口120的数据通信功能和数据流,且核心控制器中的微控制器1111可以按照算法对数据进行运算,使得本申请中的星载计算机检测系统10在核心控制器110的加持下,更具适应性,实现更具体的对星载计算机200在工作模式下的各种环境状态信号的模拟,其中,本申请提供的实施例中的微控制器1111可选用ARM硬核控制器。The FPGA SoC chip can meet the logic implementation and data operation of many functions of the
上述中,核心控制器还用于接收星载计算机200发送的数据反馈信号,并根据数据反馈信号和核心控制器内部微控制器1111编辑的功能算法判断星载计算机200的各种应用功能是否出现异常。In the above, the core controller is also used to receive the data feedback signal sent by the onboard computer 200, and judge whether various application functions of the onboard computer 200 appear according to the data feedback signal and the function algorithm edited by the
优选的,所述第一数据接口120包括以下至少一个接口:第一RS422接口、第一CAN总线接口、第一AD接口、DA接口、USB接口。Preferably, the
这里,星载计算机200的第二数据接口210包括第二RS422接口、第二CAN总线接口以及第二AD接口,单板测试板卡100的第一数据接口120中的第一RS422接口与星载计算机200的第二数据接口210中的第二RS422接口堆栈式对插连接,单板测试板卡100的第一数据接口120中的第一CAN总线接口与星载计算机200的第二数据接口210中的第二CAN总线接口堆栈式对插连接,单板测试板卡100的第一数据接口120中的DA接口和第一AD接口均与星载计算机200的第二数据接口210中的第二AD接口堆栈式对插连接,单板测试板卡100的第一数据接口120中的USB接口和外部终端设备相连接,其中,所述USB接口,用于将数据反馈信号发送至外部终端设备;所述外部终端设备,用于基于接收的所述USB接口发送的所述数据反馈信号绘制检测波形图。Here, the second data interface 210 of the onboard computer 200 includes a second RS422 interface, a second CAN bus interface and a second AD interface, and the first RS422 interface in the
上述中,在设计单板测试板卡100的过程中,由于涉及到使用者的便携性考量以及考虑到卫星中设备(如空间飞行器等)使用的实际情况,对单板测试板卡100与星载计算机200之件采用堆栈式对插连接,且堆栈式对插连接也是卫星中电子学产品的安装方法。In the above, in the process of designing the single-board test board 100, due to the consideration of the user's portability and the actual use of the equipment in the satellite (such as a spacecraft, etc.), the single-board test board 100 and the satellite are considered. The components of the on-board computer 200 adopt a stacking plug-in connection, and the stacking plug-in connection is also an installation method for electronic products in satellites.
这里,单板测试板卡100的部分第一数据接口120连接节点是通过板上对插接触连接的,采用单板式的安装方式,可以将星上使用的各项节点充分接触,实现除了上述功能覆盖测试以外,在物理接口和电气标准上同样进行完善的测试。Here, the connection nodes of part of the
其中,USB接口的硬件设计是利用USB 2.0通信协议驱动芯片实现通信协议实现的,本申请提供的实施例选用FTDI FT232H控制器芯片作为通信协议驱动芯片,通过FTDIFT232H控制器芯片实现USB 2.0高速数据通信,控制器最高支持480Mbps。Among them, the hardware design of the USB interface is realized by using the USB 2.0 communication protocol driver chip to realize the communication protocol. The embodiment provided in this application selects the FTDI FT232H controller chip as the communication protocol driver chip, and realizes the USB 2.0 high-speed data communication through the FTDIFT232H controller chip. , the controller supports up to 480Mbps.
如图2所述,图2为本申请实施例所提供的一种星载计算的检测系统中USB接口设计的结构框图,图2中,FT232H控制器芯片由一个12MHz晶振提供芯片运行时钟,通信时使用的协议通过外部直连的带电可编程只读存储器(EEPROM)预编程确定,USB 2.0的数据接口从FT232H控制器芯片的DP与DM引脚引出,这两个信号连接到通信接插件中即可完成外部对USB 2.0接口的连接。As shown in FIG. 2 , FIG. 2 is a structural block diagram of a USB interface design in a detection system for on-board computing provided by an embodiment of the application. In FIG. 2 , the FT232H controller chip is provided with a 12MHz crystal oscillator to provide the chip running clock, and the communication The protocol used is determined by the external direct-connected electrified programmable read-only memory (EEPROM) pre-programmed. The data interface of USB 2.0 is drawn from the DP and DM pins of the FT232H controller chip, and these two signals are connected to the communication connector. You can complete the external connection to the USB 2.0 interface.
这样,使用FT232H驱动USB 2.0时,需要将FT232H配置成FT245模式同步FIFO接口,将USB 2.0串行数据于8bit位宽编码数据进行转换。在使用这一模式时,主要信号如表1所示:In this way, when using FT232H to drive USB 2.0, it is necessary to configure FT232H as a synchronous FIFO interface in FT245 mode, and convert USB 2.0 serial data into 8-bit bit-width encoded data. When using this mode, the main signals are shown in Table 1:
表1 FT232H与星敏感器主控芯片连接信号表Table 1 FT232H and star sensor main control chip connection signal table
这里,表1中对于FT232H芯片读操作驱动设计如下:Here, the drive design for the read operation of the FT232H chip in Table 1 is as follows:
当芯片将RXF#输出低电平时,可以进行读取操作,在RD#信号变为低电平之前,FPGA SoC系统可以将OE#设置为低电平,使数据总线驱动器的信号方向为输出,使FPGA SoC端可以读取数据;OE#为低电平后,第一个数据字节开始出现在数据上,一旦所有数据读取完,芯片将把RXF#驱动为高电平,RXF#为高电平后,出现在数据总线上的所有数据均无效,应将其忽略。When the chip outputs RXF# to a low level, the read operation can be performed. Before the RD# signal becomes a low level, the FPGA SoC system can set the OE# to a low level, so that the signal direction of the data bus driver is output. The FPGA SoC side can read data; after OE# is low level, the first data byte begins to appear on the data, once all data is read, the chip will drive RXF# to high level, RXF# is After high, all data appearing on the data bus is invalid and should be ignored.
FT232H芯片写操作驱动设计如下:The FT232H chip write operation driver design is as follows:
TXE#为低时,可以开始写入操作,写数据操作有效时,WR#从高电平变为低电平,只要TXE#一直为低,就可以在每个时钟上连续进行写入操作,FPGA SoC资源芯片驱动必须监视TXE#及WR#信号,以检查接收方是否已经收到数据,当二者不都为低时,数据无法被数据总线接收,出现在数据总线上的所有数据均无效。When TXE# is low, the write operation can be started. When the write data operation is valid, WR# changes from high level to low level. As long as TXE# is always low, the write operation can be performed continuously on each clock. The FPGA SoC resource chip driver must monitor the TXE# and WR# signals to check whether the receiver has received data. When both are not low, the data cannot be received by the data bus, and all data appearing on the data bus is invalid. .
这里,上述的USB 2.0驱动信号由单板测试板卡100中的核心控制器行控制和数据信号收集以及读取,在设计外部终端设备接收到数据反馈信号后,辅助分析后,外部终端设备针对数据反馈信号进行辅助分析,并给出动态分析数据,绘制出波形图,便于测试者更加直观的查看。Here, the above-mentioned USB 2.0 drive signal is controlled by the core controller in the single-board test board 100, and the data signal is collected and read. After the design external terminal device receives the data feedback signal, after auxiliary analysis, the external terminal device is designed for The data feedback signal is used for auxiliary analysis, dynamic analysis data is given, and waveform diagrams are drawn, which is convenient for testers to view more intuitively.
所述星载计算机200,用于对所述环境状态信号进行处理,得到所述数据反馈信号,并将所述数据反馈信号通过所述第二数据接口210发送至所述核心控制器。The onboard computer 200 is configured to process the environmental state signal to obtain the data feedback signal, and send the data feedback signal to the core controller through the second data interface 210 .
上述具体实施方式中,星载计算机200用于将单板测试板模拟的环境状态信号进行处理,其中,处理的方式包括但不限于判断处理、计算处理、打包处理以及设计处理,在处理后,将得到的数据反馈信号通过第二数据接口210发送至核心控制器。In the above specific embodiment, the onboard computer 200 is used to process the environmental state signal simulated by the single-board test board, wherein the processing methods include but are not limited to judgment processing, calculation processing, packaging processing and design processing. After processing, The obtained data feedback signal is sent to the core controller through the second data interface 210 .
优选的,所述第二数据接口210包括第二AD接口,所述环境状态信号包括温度模拟信号;所述应用功能包括控温功能,其中,所述核心控制器,用于利用所述第二AD接口向所述星载计算机200发送所述温度模拟信号,以及基于接收到的所述星载计算机200发送的温度反馈信号确定所述星载计算机200的所述控温功能是否异常。Preferably, the second data interface 210 includes a second AD interface, the environmental state signal includes a temperature analog signal; the application function includes a temperature control function, wherein the core controller is used to utilize the second AD interface. The AD interface sends the temperature simulation signal to the onboard computer 200 , and determines whether the temperature control function of the onboard computer 200 is abnormal based on the received temperature feedback signal sent by the onboard computer 200 .
所述星载计算机200,用于对所述温度模拟信号进行处理,得到所述温度反馈信号。The onboard computer 200 is configured to process the temperature analog signal to obtain the temperature feedback signal.
上述中,当本申请提供的实施例中需要检测星载计算机200的控温功能时,此时,星载计算机检测系统10需要模拟外部的控温应用分系统,此时,核心控制器的微控制器1111模拟第一温度数字信号,并将该第一温度数字信号通过逻辑资源处理子芯片1112中的DA转换控制器将所述第一温度数字信号转换成第一模拟信号,并将所述第一模拟信号通过DA接口发送至星载计算机200的第二AD接口,星载计算机200将第一模拟信号经由AD转换成第一数字信号,所述第一模拟信号经由AD转换成第一数据信号,此时,星载计算机200判断第一数据信号是否高于预设低温阈值,若大于预设低温阈值,则星载计算机200开始加热,并将加热的温度反馈信号通过第二AD接口输出给检测系统中的微控制器1111,此时微控制器1111模拟第二温度数字信号(第二温度数字信号大于星载计算机200的预设低温阈值,且小于星载计算机200的预设高温阈值),并将第二温度数字信号发送至星载计算机200,若星载计算机200在经由处理后,持续输出继续加热的温度反馈信号给检测系统,则说明星载计算机200的控温功能运行到此时吴异常,接着核心控制器的微控制器1111模拟第三温度数字信号,并将该第三温度数字信号通过逻辑资源处理子芯片1112中的DA转换控制器将所述第三温度数字信号转换成第三模拟信号,并将所述第三模拟信号通过DA接口发送至星载计算机200的第二AD接口,星载计算机200将第三模拟信号经由AD转换成第三数字信号(第三数字信号高于预设高温阈值),所述第三模拟信号经由AD转换成第三数据信号,此时,若星载计算机200判断第三数据信号是否高于预设低温阈值,并输出停止加热的温度反馈信号给检测系统,则检测系统根据该温度反馈信号确定星载计算机200的控温功能无异常。In the above, when the temperature control function of the onboard computer 200 needs to be detected in the embodiments provided by this application, at this time, the onboard computer detection system 10 needs to simulate an external temperature control application subsystem. The
这里,检测系统针对温度反馈信号的电平和PWM波形进行时序分析,若分析结果与星载计算机200发送给检测系统的温度反馈信号表征的工作状态结果不同,则确定星载计算机200的控温功能发生异常。Here, the detection system performs time sequence analysis on the level of the temperature feedback signal and the PWM waveform. If the analysis result is different from the working state result represented by the temperature feedback signal sent by the onboard computer 200 to the detection system, the temperature control function of the onboard computer 200 is determined. An exception occurs.
其中,星载计算机200的控温功能具体为:在星载计算机200接收到低于预设低温阈值的温度模拟信号后,对该温度模拟信号进行加热处理,确定星载计算机200的工作模式为加热状态;若该温度模拟信号高于预设高温阈值,星载计算机200确定对该温度模拟信号停止加热,确定星载计算机200的工作模式为停止加热状态。The temperature control function of the onboard computer 200 is specifically: after the onboard computer 200 receives a temperature analog signal that is lower than the preset low temperature threshold, the temperature analog signal is heated, and the working mode of the onboard computer 200 is determined as: Heating state; if the temperature analog signal is higher than the preset high temperature threshold, the onboard computer 200 determines to stop heating the temperature analog signal, and determines that the working mode of the onboard computer 200 is the heating stop state.
优选的,所述第二数据接口210还包括第二CAN总线接口和第二RS422接口,所述环境状态信号还包括CAN总线模拟信号;其中,Preferably, the second data interface 210 further includes a second CAN bus interface and a second RS422 interface, and the environmental status signal further includes a CAN bus analog signal; wherein,
所述核心控制器,用于利用所述第二CAN总线接口向所述星载计算机200发送所述CAN总线模拟信号,以及基于接收到的所述星载计算机200发送的打包反馈信号,确定所述星载计算机200的所述第二CAN总线接口和所述第二RS422接口是否异常;所述星载计算机200,用于对所述CAN总线模拟信号进行处理,得到打包反馈信号,以及将所述打包反馈信号通过串口数据接口发送至所述核心控制器。The core controller is configured to use the second CAN bus interface to send the CAN bus analog signal to the onboard computer 200, and based on the received packaged feedback signal sent by the onboard computer 200, determine the Whether the second CAN bus interface and the second RS422 interface of the onboard computer 200 are abnormal; the onboard computer 200 is used to process the CAN bus analog signal, obtain a packaged feedback signal, and The packaging feedback signal is sent to the core controller through the serial port data interface.
上述中,当本申请提供的实施例中需要检测星载计算机200的第二CAN总线接口和第二RS422接口时,最简单的情况为:In the above, when the second CAN bus interface and the second RS422 interface of the onboard computer 200 need to be detected in the embodiment provided by this application, the simplest situation is:
先将检测系统中第一数据接口120的第一CAN总线接口与星载计算机200中第二数据接口210的第一CAN总线接口连接,将检测系统中第一数据接口120的第一RS422接口与星载计算机200中第二数据接口210的第二RS422接口连接,若星载计算机200的第二CAN总线接口或第二RS422接口能够成功发送对应的数据反馈信号,则说明星载计算机200的第二CAN总线接口或第二RS422接口的功能设计没有异常。First, connect the first CAN bus interface of the
这里,星载计算机200在进行任务处理的过程中,上述第二CAN总线接口和第二RS422接口除了基本的数据传输和转发的功能外,还存在接口联动的情况,如将通过第二CAN总线接收的遥测遥控环境状态信号下发到单一的地面设备中,需要将第二CAN总线与第二RS422接口进行串联的联动检测,下面举例说明:Here, in the process of the onboard computer 200 performing task processing, in addition to the basic data transmission and forwarding functions, the above-mentioned second CAN bus interface and the second RS422 interface also have interface linkage. For example, through the second CAN bus The received telemetry and remote control environment status signal is sent to a single ground device, and the second CAN bus and the second RS422 interface need to be connected in series for linkage detection. The following example illustrates:
如单板测试板卡100需要将模拟的100个的热控仪的测温模拟信号通过星载计算机200上的第二AD接口发送至星载计算机200后,星载计算机200在进行了一些列处理和复杂星载计算机200的计算判断处理后,会将处理后的数据反馈信号发送给数传系统,而星载计算机200与数传系统之间的信号通道是严格一对一的,所以,此时需要单板测试板卡100模拟数传系统,并通过单板测试板卡100上的第一RS422接口一对一的接收对应类型的数据反馈信号,并在接收后发送给地面接收站,以此实现星载计算机200中第一数据接口120联动的检测。For example, after the single-board test board 100 needs to send the simulated temperature measurement signals of 100 simulated thermal controllers to the on-board computer 200 through the second AD interface on the on-board computer 200, the on-board computer 200 performs some series of After processing and the calculation and judgment of the complex onboard computer 200, the processed data feedback signal will be sent to the data transmission system, and the signal channel between the onboard computer 200 and the data transmission system is strictly one-to-one. Therefore, At this time, the single-board test board 100 needs to simulate the data transmission system, and receive the corresponding type of data feedback signal one-to-one through the first RS422 interface on the single-board test board 100, and send it to the ground receiving station after receiving, In this way, the detection of linkage of the
优选的,所述核心控制器,具体用于根据以下步骤确定所述星载计算机200的所述第二CAN总线接口和所述第二RS422接口是否异常:Preferably, the core controller is specifically configured to determine whether the second CAN bus interface and the second RS422 interface of the onboard computer 200 are abnormal according to the following steps:
针对接收到的所述星载计算机200发送的打包反馈信号进行分包和解析处理,生成解析反馈信号。Perform packetization and analysis processing on the received packetized feedback signal sent by the onboard computer 200 to generate an analysis feedback signal.
上述中,星载计算机200会将接收到的CAN总线模拟信号进行打包,并将打包处理后的数据反馈信号发送给单板测试板卡100,由单板测试板卡100再将打包处理后的数据反馈信号进行分包和解析处理,生成解析反馈信号,并分析解析反馈信号背部的具体内容。In the above, the onboard computer 200 will package the received CAN bus analog signal, and send the packaged data feedback signal to the single-board test board 100, and the single-board test board 100 will then package the processed data. The data feedback signal is sub-packaged and analyzed to generate the analysis feedback signal, and analyze the specific content of the back of the analysis feedback signal.
根据所述解析反馈信号的标签信息和CAN总线模拟信号的标签信息,判断所述解析反馈信号和所述CAN总线模拟信号是否一致。According to the label information of the analysis feedback signal and the label information of the CAN bus analog signal, it is determined whether the analysis feedback signal and the CAN bus analog signal are consistent.
若是,则确定所述第二CAN总线接口和所述第二RS422接口均正常。If so, it is determined that both the second CAN bus interface and the second RS422 interface are normal.
上述中,若单板测试板卡100在将CAN总线模拟信号和解析反馈信号进行标签信息后,确定解析反馈信号的内容和CAN总线模拟信号的内容一致,则确定所述第二CAN总线接口和所述第二RS422接口均正常。In the above, if the single-board test board 100 determines that the content of the analytical feedback signal is consistent with the content of the CAN bus analog signal after labeling the CAN bus analog signal and the analytical feedback signal, then determine that the second CAN bus interface and the analytical feedback signal are consistent. The second RS422 interface is normal.
这里,若单板测试板卡100在将CAN总线模拟信号和解析反馈信号进行标签信息后,确定解析反馈信号的内容和CAN总线模拟信号的内容不一致,则确定所述第二CAN总线接口和第二RS422接口中存在异常,此时,根据实际情况,对第二CAN总线接口或第二RS422接口进行重设设计及调试测试。Here, if the single-board test board 100 determines that the content of the analytical feedback signal is inconsistent with the content of the CAN bus analog signal after labeling the CAN bus analog signal and the analytical feedback signal, it is determined that the second CAN bus interface and the first CAN bus interface There is an abnormality in the second RS422 interface. At this time, according to the actual situation, the second CAN bus interface or the second RS422 interface should be reset, designed and tested.
优选的,所述环境状态信号还包括电压模拟信号,所述应用功能包括电压检测功能;其中,所述核心控制器,用于利用所述第二AD接口向所述星载计算机200发送所述电压模拟信号,以及基于接收到的所述星载计算机200发送的电压反馈信号确定所述星载计算机200的所述电压检测功能是否异常;所述星载计算机200,用于对所述电压模拟信号进行处理,得到所述电压反馈信号。Preferably, the environmental status signal further includes a voltage analog signal, and the application function includes a voltage detection function; wherein the core controller is configured to send the onboard computer 200 by using the second AD interface. voltage simulation signal, and determine whether the voltage detection function of the onboard computer 200 is abnormal based on the received voltage feedback signal sent by the onboard computer 200; the onboard computer 200 is used for simulating the voltage The signal is processed to obtain the voltage feedback signal.
上述中,星载计算机200检测供电电源是否异常的功能具体为:In the above, the function of the onboard computer 200 to detect whether the power supply is abnormal is specifically:
星载计算机200的第二AD接口通常采集通V基准电压值,即第二AD接口进行模拟信号量化传送时,满量程为5V,所以星载计算机200在硬件设计上,将上述多种供电电源的电压值(供电电源的电压值通常为28V、12V以及5V等),通过第一电阻以及第二电阻的分压,得到3V电压,并将接入3V电压接入第二AD接口的输入端。当星载计算机200的第二AD接口接收到3V电压时,认为其对应的高电压值也是正确的,因为实际供电使用的高电压值与采集电压值是通过电阻进行分压的,当采集的电压值与3V电压值的差值的绝对值超出星载计算的预设电压值时,则认为星载计算机200检测到供电电源供电异常。The second AD interface of the onboard computer 200 usually collects the V reference voltage value, that is, when the second AD interface performs analog signal quantization and transmission, the full scale is 5V. Therefore, in the hardware design of the onboard computer 200, the above-mentioned various power supplies are The voltage value of the power supply (the voltage value of the power supply is usually 28V, 12V and 5V, etc.), through the voltage division of the first resistor and the second resistor, the 3V voltage is obtained, and the 3V voltage is connected to the input terminal of the second AD interface . When the second AD interface of the onboard computer 200 receives the 3V voltage, it is considered that the corresponding high voltage value is also correct, because the high voltage value used in the actual power supply and the collected voltage value are divided by resistors. When the absolute value of the difference between the voltage value and the 3V voltage value exceeds the preset voltage value calculated by the on-board computer, it is considered that the on-board computer 200 detects that the power supply is abnormal.
当本申请提供的实施例中的单板测试板卡100需要检测星载计算机200的单机供电功能时,这里,单板测试板卡100首先通过DA接口,按照芯片输出3V电压模拟信号的对应电压模拟信号,向DA接口发送该值,此时星载计算机200的第二AD接口得到该模拟信号的量化值。星载计算机200会按照阈值偏差判断方式给出该电压是否符合正常工作状态,并通过第二CAN总线接口发送电压反馈信号,若此时电压反馈信号的为代表供电正常的预设标记符号,则单板测试板卡100确定所述星载计算机200的所述电压检测功能正常;而当单板测试板卡100单板测试板卡100输出偏差3V较大的电压模拟信号时,星载计算机200同样按照阈值偏差判断方式给出该电压模拟信号对应的量化电压值,若此时电压反馈信号的为代表供电正常的预设标记符号,则单板测试板卡100确定所述星载计算机200的所述电压检测功能异常。When the single-board test board 100 in the embodiment provided by this application needs to detect the stand-alone power supply function of the onboard computer 200, here, the single-board test board 100 first outputs the corresponding voltage of the 3V voltage analog signal through the DA interface according to the chip The analog signal is sent to the DA interface. At this time, the second AD interface of the onboard computer 200 obtains the quantized value of the analog signal. The onboard computer 200 will give whether the voltage conforms to the normal working state according to the threshold deviation judgment method, and send the voltage feedback signal through the second CAN bus interface. The single-board test board 100 determines that the voltage detection function of the onboard computer 200 is normal; and when the single-board test board 100 outputs a voltage analog signal with a large deviation of 3V, the onboard computer 200 The quantized voltage value corresponding to the voltage analog signal is also given according to the threshold deviation judgment method. If the voltage feedback signal is a preset mark symbol representing normal power supply at this time, the single-board test board 100 determines the onboard computer 200 The voltage detection function is abnormal.
优选的,所述电压反馈信号为所述星载计算机200通过第二CAN总线接口反馈的包含标记位的电压信号;所述核心控制器,用于根据以下步骤确定所述电压检测功能是否异常:Preferably, the voltage feedback signal is a voltage signal including a flag bit fed back by the onboard computer 200 through the second CAN bus interface; the core controller is configured to determine whether the voltage detection function is abnormal according to the following steps:
根据所述标记位的数字信息以及位置信息,确定所述星载计算机200的所述电压检测功能是否异常。Whether the voltage detection function of the onboard computer 200 is abnormal is determined according to the digital information and position information of the marker bit.
上述中,标记位为表中该供电电源工作情况的表示位,且标记位可进行自定义设置,如可根据的数字信息以及位置信息,将标记位设置为电压反馈信号的最后一位,如用“0”表示电压检测功能异常,用“1”表示电压检测功能异常用“0”表示电压检测功能正常。In the above, the marker bit is the representation bit of the working condition of the power supply in the table, and the marker bit can be customized. For example, according to the digital information and position information, the marker bit is set as the last bit of the voltage feedback signal, as Use "0" to indicate that the voltage detection function is abnormal, use "1" to indicate that the voltage detection function is abnormal, and use "0" to indicate that the voltage detection function is normal.
优选的,所述单板测试板卡100还包括电阻分压电路130,所述电阻分压电路130与所述第一AD接口相连,所述电阻分压电路130用于模拟所述星载计算机200在工作模式下对应的不同电压值的电压模拟信号,如图3所示,图3为本申请实施例所提供的一种星载计算的检测系统中电阻分压电路的结构框图,所述电阻分压电路130包括第一电阻R1、第二电阻R2以及U供电电源,所述供电电源U的正极端与所述第一电阻R1和所述第二电阻R2进行串联后接地,所述供电电源U的负极端接地,所述第一电阻R1与所述第二电阻R2相连接的一端与所述第一AD接口相连。Preferably, the single-board test board 100 further includes a resistance voltage divider circuit 130, the resistance voltage divider circuit 130 is connected to the first AD interface, and the resistance voltage divider circuit 130 is used to simulate the onboard computer 200 voltage analog signals corresponding to different voltage values in the working mode, as shown in FIG. 3 , which is a structural block diagram of a resistance voltage divider circuit in a detection system for on-board calculation provided by an embodiment of the present application. The resistor divider circuit 130 includes a first resistor R1, a second resistor R2 and a U power supply. The positive terminal of the power supply U is connected in series with the first resistor R1 and the second resistor R2 and then grounded. The negative terminal of the power supply U is grounded, and the end connected with the first resistor R1 and the second resistor R2 is connected with the first AD interface.
本申请实施例提供的星载计算机检测系统10,与现有技术相比,本申请提供的实施例通过单板测试板来模拟卡星载计算机200在工作模式下的各种环境状态信号,实现了能够模拟整个星载计算机200在不同工作状态下,对于星载计算机200的各个接口的测试,避免了需要使用不同外部工具进行单一接口测试的过程,在提高了测试效率并缩减了测试成本的同时,加快了星载计算机200设计过程中排查出错误设计和异常状态的进度。Compared with the prior art, the on-board computer detection system 10 provided by the embodiment of the present application simulates various environmental state signals of the on-board computer 200 in the working mode by using a single-board test board to realize In order to be able to simulate the entire onboard computer 200 in different working states, the test of each interface of the onboard computer 200 avoids the need to use different external tools to test a single interface, which improves the test efficiency and reduces the test cost. At the same time, the progress of checking out erroneous designs and abnormal states during the design process of the onboard computer 200 is accelerated.
请参阅图4,图4为本申请另一实施例提供的一种星载计算的检测系统中单板测试板卡100的结构框图。如图4中所示,本申请实施例提供的单板测试板卡100,包括:Please refer to FIG. 4 , which is a structural block diagram of a single-board testing board 100 in a detection system for on-board computing provided by another embodiment of the present application. As shown in FIG. 4 , the single-board test board 100 provided by this embodiment of the present application includes:
所述星载计算机检测系统10包括星载计算机200和单板测试板卡100,所述单板测试板卡100包括多个第一数据接口120和核心控制器,所述第一数据接口120与所述星载计算机的第二数据接口210堆栈式对插连接,所述核心控制器包括可编程控制芯片111和电平匹配芯片112,所述可编程控制芯片111包括微控制器1111和逻辑资源处理子芯片1112。The onboard computer detection system 10 includes an onboard computer 200 and a single-board test board 100. The single-board test board 100 includes a plurality of first data interfaces 120 and a core controller. The second data interface 210 of the onboard computer is connected in a stacking manner, the core controller includes a programmable control chip 111 and a level matching chip 112, and the programmable control chip 111 includes a
其中,电平匹配芯片112,用于匹配对应的第一数据接口120从可编程控制芯片111中获取模拟星载计算机200在工作模式下的各种环境状态信号。The level matching chip 112 is used for matching the corresponding
微控制器1111采用ARM硬核微控制器1111,其中,逻辑资源处理子芯片1112包括CAN控制器、串口控制器、LVDS接口控制器、DA转换控制器、AD转换控制器以及USB接口时序,而与之对应的电平匹配芯片112包括CAN总线收发器、RE422电平匹配芯片112、DA转换芯片、AD转换芯片以及USB协议芯片。The
其中RE422电平匹配芯片112采用MAX3488ESA RS422差分电平协议芯片,将单端串行通信接口转换为RS422接口,CAN总线收发器采用TJA1040T型号芯片,AD转换芯片采用ADS8344型号芯片,DA转换芯片采用DAC80508型号芯片。Among them, RE422 level matching chip 112 adopts MAX3488ESA RS422 differential level protocol chip, which converts single-ended serial communication interface into RS422 interface, CAN bus transceiver adopts TJA1040T type chip, AD conversion chip adopts ADS8344 type chip, and DA conversion chip adopts DAC80508 model chip.
与现有技术中相比,本申请提供的实施例中的单板测试板卡100,通过模拟卡星载计算机200在工作模式下的各种环境状态信号,实现了能够模拟整个星载计算机200在不同工作状态下,对于星载计算机200的各个接口的测试,避免了需要使用不同外部工具进行单一接口测试的过程,在提高了测试效率并缩减了测试成本的同时,加快了星载计算机200设计过程中排查出错误设计和异常状态的进度。Compared with the prior art, the single-board test board 100 in the embodiment provided by the present application can simulate the entire on-board computer 200 by simulating various environmental state signals of the on-board computer 200 in the working mode. In different working states, for the test of each interface of the onboard computer 200, the process of using different external tools to test a single interface is avoided, the test efficiency is improved and the test cost is reduced, and the onboard computer 200 is accelerated. The progress of troubleshooting design errors and abnormal states during the design process.
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统的具体工作过程,可以参考前述系统实施例中的对应过程,在此不再赘述。在本申请所提供的几个实施例中,应所述理解到,所揭露的系统,可以通过其它的方式实现。以上所描述的系统实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,又例如,多个分系统或模块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通信接口的间接耦合或通信连接,可以是电性,机械或其它的形式。Those skilled in the art can clearly understand that, for the convenience and brevity of description, for the specific working process of the system described above, reference may be made to the corresponding process in the foregoing system embodiments, which will not be repeated here. In the several embodiments provided in this application, it should be understood that the disclosed system may be implemented in other manners. The system embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple subsystems or modules may be combined. Either it can be integrated into another system, or some features can be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some communication interfaces, and may be in electrical, mechanical 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网络单元上。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 components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in 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。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
以上仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以权利要求的保护范围为准。The above are only the specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or replacements, which should be covered within the scope of the present application. within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
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