技术领域technical field
本发明涉及航天卫星有效载荷任务管理领域，尤其涉及一种卫星有效载荷任务管理系统。The invention relates to the field of space satellite payload task management, in particular to a satellite payload task management system.
背景技术Background technique
现有技术中，通常卫星有效载荷任务的管理是由数据管理分系统、测控通信分系统、电源及配电分系统合作完成的，数据管理分系统实现卫星有效载荷开关机指令、上电指令、关键时序动作指令等管理和控制功能；测控通信分系统实现卫星有效载荷遥测数据、数传数据的采集和传输；电源及配电分系统实现卫星有效载荷的电源供给并转换为相应电压幅值的二次配电电压。随着卫星技术的高速发展，卫星搭载的有效载荷数量和种类越来越多，对卫星有效载荷任务管理的要求也各不相同，由多个分系统实施的卫星有效载荷任务管理不利于卫星一体化设计，信息流交互较为复杂，接口多样且来自不同单机，软件设计不够优化，增加了整星的重量和功耗，亟需进行改进设计。In the prior art, the management of satellite payload tasks is usually completed by the cooperation of the data management subsystem, measurement and control communication subsystem, power supply and power distribution subsystem. Management and control functions such as key timing action commands; the measurement and control communication subsystem realizes the collection and transmission of satellite payload telemetry data and digital transmission data; the power supply and power distribution subsystem realizes the power supply of satellite payloads and converts them into corresponding voltage amplitudes. Secondary distribution voltage. With the rapid development of satellite technology, the number and types of payloads carried by satellites are increasing, and the requirements for satellite payload task management are also different. Satellite payload task management implemented by multiple subsystems is not conducive to satellite integration. The information flow interaction is relatively complicated, the interfaces are diverse and come from different stand-alone machines, the software design is not optimized enough, and the weight and power consumption of the whole star are increased, so it is urgent to improve the design.
目前卫星有效载荷管理的接口通常为输入、输出一对一接口形式，可靠性较低，若接口通道出现故障，便会造成卫星有效载荷无法正常工作。At present, the interface for satellite payload management is usually in the form of a one-to-one interface between input and output, which has low reliability. If the interface channel fails, the satellite payload will not work normally.
此外，现有技术中对卫星的健康管理多采用状态监测、异常报警等单级故障监测的方式，其在实施过程中对于卫星不同程度的异常工作状态均采取无差别的故障警报和应对措施，需要付出高昂的健康管理实现代价和资源。In addition, in the prior art, the health management of satellites mostly adopts single-level fault monitoring methods such as status monitoring and abnormal alarm. Need to pay high health management implementation costs and resources.
发明内容Contents of the invention
本发明所要解决的技术问题是：针对现有技术的不足，提供了一种卫星有效载荷任务管理系统，在不增加卫星总体设计额外单机设备开销的前提下，能够实现卫星对于星载有效载荷的供配电、遥测遥控、健康管理等功能的一体化任务管理，本系统中涉及的单机设备仍可执行卫星运行中的其它功能。能够有效适应日益复杂的卫星有效载荷技术发展并根据现有卫星的测控覆盖条件，可灵活进行天基传输和地基传输的数据通信切换，适应不同信道资源容量，选择有效载荷数据传输码率，提高通信效率和通信灵活性；The technical problem to be solved by the present invention is: aiming at the deficiencies of the prior art, a satellite payload task management system is provided, which can realize the satellite payload task management system for the satellite on the premise of not increasing the overall design of the satellite. Integrated task management of functions such as power supply and distribution, telemetry and remote control, and health management. The stand-alone equipment involved in this system can still perform other functions in satellite operation. It can effectively adapt to the increasingly complex satellite payload technology development and according to the existing satellite measurement and control coverage conditions, it can flexibly switch data communication between space-based transmission and ground-based transmission, adapt to different channel resource capacities, select payload data transmission code rate, and improve Communication efficiency and communication flexibility;
进一步的，能够根据卫星遥测模态，灵活动态地调度有效载荷数据源进行处理，实现不同遥测模态之间的快速、可靠切换，满足不同任务阶段、任务模式的需求，有效地提升了有效载荷在星地大回路的通信效率；Furthermore, it can flexibly and dynamically schedule payload data sources for processing according to the satellite telemetry mode, realize fast and reliable switching between different telemetry modes, meet the needs of different mission stages and mission modes, and effectively improve the payload Communication efficiency in the star-earth circuit;
进一步的，能够实现有效载荷的供电和数据的冗余备保，有效避免了单通故障导致有效载荷无法正常工作的问题，大幅提高了系统的可靠性；Furthermore, the power supply of the payload and the redundant backup of data can be realized, which effectively avoids the problem that the payload cannot work normally due to a single-pass failure, and greatly improves the reliability of the system;
进一步的，能够大幅降低卫星有效载荷健康管理的实现代价，实现低成本、灵活、自主的有效载荷健康诊断和评估。Furthermore, the implementation cost of satellite payload health management can be greatly reduced, and low-cost, flexible, and autonomous payload health diagnosis and evaluation can be realized.
本发明包括如下技术方案：The present invention includes following technical solutions:
本发明提供一种卫星有效载荷任务管理系统，包括数据管理计算机、数据总线、电池、配电器、有效载荷、数据存储复接器和星地遥测遥控处理单元；The invention provides a satellite payload task management system, which includes a data management computer, a data bus, a battery, a distributor, a payload, a data storage multiplexer, and a satellite-ground telemetry remote control processing unit;
所述数据管理计算机、配电器、有效载荷、数据存储复接器和星地遥测遥控处理单元均与所述数据总线相连接；The data management computer, power distributor, payload, data storage multiplexer and satellite-ground telemetry remote control processing unit are all connected to the data bus;
其中，所述数据管理计算机通过所述数据总线控制配电器的加、断电，控制有效载荷的开关机、控制数据存储复接器转换遥测数据的格式和调度遥测数据以及控制所述星地遥测遥控处理单元的遥测码率切换和天地基的遥测数据传输；判断自身和所述配电器、有效载荷的处理机是否故障并根据发生故障情况控制执行有效载荷与配电器之间的交叉通道供电链路切换策略以及数据管理计算机与有效载荷之间的交叉通道数据链路切换策略；判断所述有效载荷的健康等级并根据该判断的健康等级采取相应的健康管理策略；Wherein, the data management computer controls the power on and off of the power distribution device through the data bus, controls the power on and off of the payload, controls the data storage multiplexer to convert the format of the telemetry data, schedules the telemetry data, and controls the satellite-ground telemetry Telemetry code rate switching of the remote control processing unit and space-to-ground telemetry data transmission; judging whether itself, the distributor, and the processor of the payload are faulty, and controlling the execution of the cross-channel power supply chain between the payload and the distributor according to the failure situation Road switching strategy and the cross-channel data link switching strategy between the data management computer and the payload; judging the health level of the payload and taking a corresponding health management strategy according to the judged health level;
所述有效载荷的数量为一个或多个，所述有效载荷中的每个与所述数据存储复接器之间均建立有相应的信道并将生成的遥测数据通过所述信道传输至所述数据存储复接器，所述有效载荷通过所述数据总线接收所述数据管理计算机发送的开关机指令和关键时序动作指令并将所述有效载荷的状态参数通过所述数据总线反馈给所述数据管理计算机；There are one or more payloads, and a corresponding channel is established between each of the payloads and the data storage multiplexer, and the generated telemetry data is transmitted to the Data storage multiplexer, the payload receives the power-on/off instructions and key timing action instructions sent by the data management computer through the data bus, and feeds back the state parameters of the payload to the data bus through the data bus. manage computers;
所述电池向所述配电器供给母线电压；所述配电器接收所述电池提供的母线电压，经DC/DC变换，转换为相应的所述有效载荷所需的二次电压，根据所述数据管理计算机的控制对所述有效载荷进行加、断电操作，并将加、断电的状态参数通过所述数据总线反馈给所述数据管理计算机；The battery supplies the bus voltage to the distributor; the distributor receives the bus voltage provided by the battery, converts it into the corresponding secondary voltage required by the payload through DC/DC conversion, and according to the data The control of the management computer performs power-on and power-off operations on the payload, and feeds back the state parameters of power-on and power-off to the data management computer through the data bus;
所述数据存储复接器接收所述有效载荷传输来的遥测数据并进行标准化处理得到有效载荷的数据源包，并通过所述数据总线接收所述数据管理计算机的遥测数据调度指令以对所述数据源包进行调度，以生成组信道传输帧并向所述星地遥测遥控处理单元传输；The data storage multiplexer receives the telemetry data transmitted by the payload and performs standardized processing to obtain the data source packet of the payload, and receives the telemetry data scheduling instruction of the data management computer through the data bus to process the telemetry data of the payload. The data source packet is scheduled to generate a group channel transmission frame and transmit it to the satellite-ground telemetry remote control processing unit;
所述星地遥测遥控处理单元接收所述数据存储复接器传输来的所述组信道传输帧，通过所述数据总线接收所述数据管理计算机发送的遥测码率切换指令以切换至所需码速率和天地基开关指令以将遥测数据进行天基或者地基传输。The satellite-ground telemetry remote control processing unit receives the group channel transmission frame transmitted by the data storage multiplexer, and receives the telemetry code rate switching instruction sent by the data management computer through the data bus to switch to the required code rate. Rate and space-based switch commands to send telemetry data to space or ground.
进一步的，所述数据存储复接器对遥测数据进行标准化处理包括：对于从各有效载荷接收到的不同格式的遥测数据进行信号的调理、放大，转换为统一的信号形式，得到所述有效载荷的数据源包。Further, the standardization processing of the telemetry data by the data storage multiplexer includes: performing signal conditioning and amplification on the telemetry data received from each payload in different formats, and converting them into a unified signal form to obtain the payload data source package.
进一步的，所述数据存储复接器对遥测数据进行调度包括：Further, the scheduling of telemetry data by the data storage multiplexer includes:
(1)所述数据存储复接器接收到所述数据管理计算机发送的遥测数据调度指令后，开始遥测数据的调度；(1) After the data storage multiplexer receives the telemetry data scheduling instruction sent by the data management computer, it starts scheduling the telemetry data;
(2)当卫星具备测控覆盖条件时，所述数据存储复接器接收所述数据管理计算机的控制指令进入实时工作模式，所述实时工作模式包括：一方面将全部有效载荷的数据源包置入数据存储复接器内的遥测数据池内缓存，另一方面根据当前卫星遥测模态的需要，通过数据存储复接器内的包调度单元的调度算法选取部分有效载荷的数据源包组成信道传输帧，将信道传输帧向星地遥测遥控处理单元进行下行传输；其中，当卫星遥测模态需要全部有效载荷的数据源包时，则从所述遥测数据池调取全部有效载荷的数据源包组成信道传输帧并向星地遥测遥控处理单元进行下行传输；(2) When the satellite has the measurement and control coverage conditions, the data storage multiplexer receives the control instruction of the data management computer and enters the real-time working mode, and the real-time working mode includes: on the one hand, wrapping the data sources of all payloads On the other hand, according to the needs of the current satellite telemetry mode, select part of the payload data source packets to form channel transmission through the scheduling algorithm of the packet scheduling unit in the data storage multiplexer frame, the channel transmission frame is downlink transmitted to the satellite-ground telemetry remote control processing unit; wherein, when the satellite telemetry mode needs the data source packets of all payloads, the data source packets of all payloads are retrieved from the telemetry data pool Compose a channel transmission frame and perform downlink transmission to the satellite-earth telemetry and remote control processing unit;
(3)当卫星不具备测控覆盖条件时，所述数据存储复接器接收所述数据管理计算机的控制指令进入记录工作模式，所述记录工作模式包括：将所述遥测数据池中的全部有效载荷的数据源包存储到数据存储复接器内的包存储区中；(3) When the satellite does not have the measurement and control coverage conditions, the data storage multiplexer receives the control command of the data management computer and enters the recording mode, and the recording mode includes: storing all valid data in the telemetry data pool The data source package of the load is stored in the package storage area in the data storage multiplexer;
(4)当卫星从不具备测控覆盖条件转入具备测控覆盖条件后，所述数据存储复接器接收所述数据管理计算机的控制指令进入回放工作模式，所述回放工作模式包括：从所述包存储区中提取存储的数据源包，并根据当前卫星遥测模态的需要，通过所述包调度单元的调度算法选取数据源包组成信道传输帧，并向星地遥测遥控处理单元进行下行传输。(4) After the satellite is transferred from not having the measurement and control coverage condition to having the measurement and control coverage condition, the data storage multiplexer receives the control command of the data management computer and enters the playback working mode, and the playback working mode includes: from the described Extract the stored data source packets from the packet storage area, and according to the needs of the current satellite telemetry mode, select the data source packets through the scheduling algorithm of the packet scheduling unit to form a channel transmission frame, and perform downlink transmission to the satellite-ground telemetry remote control processing unit .
进一步的，所述根据当前卫星遥测模态的需要，通过数据存储复接器内的包调度单元的调度算法选取部分有效载荷的数据源包包括：Further, according to the needs of the current satellite telemetry mode, selecting the data source packets of part of the payload through the scheduling algorithm of the packet scheduling unit in the data storage multiplexer includes:
(1)预先根据卫星的飞行阶段或任务模式划分出多个卫星遥测模态；(1) Divide multiple satellite telemetry modes in advance according to the flight phase or mission mode of the satellite;
(2)预先根据不同的卫星遥测模态确定不同的有效载荷的数据源包组合并建立映射关系；(2) Determining the combination of data source packets of different payloads in advance according to different satellite telemetry modes and establishing a mapping relationship;
(3)在切换到当前卫星遥测模态时，根据当前卫星遥测模态与所述数据源包组合的映射关系，对所需的有效载荷的数据源包进行动态调度。(3) When switching to the current satellite telemetry mode, dynamically schedule the required payload data source packets according to the mapping relationship between the current satellite telemetry mode and the combination of the data source packets.
进一步的，所述有效载荷与所述配电器之间的采用交叉通道供电链路连接，所述有效载荷与所述数据管理计算机之间采用交叉通道数据链路(CCDL)连接。Further, the payload is connected to the distributor using a cross-channel power supply link, and the payload is connected to the data management computer using a cross-channel data link (CCDL).
进一步的，所述有效载荷与所述数据管理计算机之间采用交叉通道数据链路(CCDL)连接时，在应对设备故障时执行的所述数据管理计算机与有效载荷之间的交叉通道数据链路切换策略包括：Further, when a cross-channel data link (CCDL) connection is used between the payload and the data management computer, the cross-channel data link between the data management computer and the payload executed when dealing with equipment failure Switching strategies include:
所述数据管理计算机和所述有效载荷均采用A处理机和B处理机的双处理机冗余备份方式，当数据管理计算机向有效载荷发送控制指令时，默认状态下，由数据管理计算机的A处理机发送给有效载荷的A处理机；若检测到有效载荷的A处理机故障时，则由有效载荷A处理机工作切换到B处理机工作，此时数据管理计算机的A处理机将所述控制指令通过所述交叉通道数据链路转而发送给有效载荷的B处理机；同样的，当数据管理计算机的A处理机出现故障时，则由数据管理计算机的A处理机工作切换到B处理机工作；Both the data management computer and the payload adopt the dual-processor redundant backup mode of the A processor and the B processor. When the data management computer sends a control command to the payload, in a default state, A of the data management computer The processing machine sends to the A processing machine of the payload; if the A processing machine of the payload is detected to be faulty, the work of the payload A processing machine is switched to the B processing machine, and at this time the A processing machine of the data management computer will The control instruction is sent to the B processor of the payload in turn through the cross-channel data link; similarly, when the A processor of the data management computer fails, the work of the A processor of the data management computer is switched to B for processing machine work;
当有效载荷向数据管理计算机发送数据时，也采取与上述切换策略相同的设备故障应对切换策略。When the payload sends data to the data management computer, the same switching strategy for equipment failure response as the above switching strategy is also adopted.
进一步的，所述有效载荷与所述配电器之间采用交叉通道供电链路连接时，在应对设备故障时执行的所述有效载荷与配电器之间的交叉通道供电链路切换策略包括：Further, when the payload and the distributor are connected by a cross-channel power supply link, the switching strategy of the cross-channel power supply link between the payload and the distributor executed when dealing with equipment failure includes:
所述配电器和所述有效载荷均采用A处理机和B处理机的双处理机冗余备份方式，当配电器向有效载荷供电时，默认状态下，由配电器的A处理机发送给有效载荷的A处理机；若检测到有效载荷的A处理机故障时，则由有效载荷A处理机工作切换到B处理机工作，此时配电器的A处理机通过所述交叉通道供电链路转而供电给有效载荷的B处理机；Both the distributor and the payload adopt the dual-processor redundant backup mode of the A processor and the B processor. When the distributor supplies power to the payload, in the default state, the A processor of the distributor sends the effective A processor of the load; if the failure of the A processor of the payload is detected, the work of the A processor of the payload is switched to the work of the B processor, and at this time, the A processor of the distributor is transferred through the power supply link of the cross channel And the B processor that supplies power to the payload;
同样的，当配电器的A处理机出现故障时，则由配电器的A处理机工作切换到B处理机工作。Similarly, when the processor A of the distribution board fails, the work of the processor A of the distribution board is switched to the operation of the processor B.
进一步的，预先对所述有效载荷的健康情况进行分级并制定相应的健康等级的健康管理策略，将所述分级和策略预先存储于所述数据存储复接器中；有效载荷工作时，所述数据管理计算机根据接收到的所述有效载荷的状态参数和从所述数据存储复接器调取的所述分级和策略，判断所述有效载荷的健康等级并根据该判断的健康等级采取相应的健康管理策略。Further, the health status of the payload is classified in advance and a health management strategy corresponding to the health level is formulated, and the classification and strategy are pre-stored in the data storage multiplexer; when the payload is working, the The data management computer judges the health level of the payload according to the received state parameters of the payload and the classification and strategy retrieved from the data storage multiplexer, and takes corresponding actions according to the judged health grade. Health management strategy.
本发明与现有技术相比具有如下优点：Compared with the prior art, the present invention has the following advantages:
(1)将数据管理计算机通过数据总线与配电器、有效载荷、数据存储复接器和星地遥测遥控处理单元的一体化系统设计，能够实现卫星对于星载有效载荷的供配电、遥测遥控、健康管理等功能的一体化任务管理；能够有效适应日益复杂的卫星有效载荷技术发展；并根据现有卫星的测控覆盖条件，可灵活进行天基、地基数据通信切换，适应不同信道资源容量，选择有效载荷数据传输码率，提高通信效率和通信灵活性；(1) The integrated system design of the data management computer through the data bus, power distribution, payload, data storage multiplexer and satellite-ground telemetry and remote control processing unit can realize the power supply and distribution, telemetry and remote control of the satellite for the satellite-borne payload Integrated task management with functions such as health management and health management; it can effectively adapt to the increasingly complex satellite payload technology development; and according to the existing satellite measurement and control coverage conditions, it can flexibly switch between space-based and ground-based data communications to adapt to different channel resource capacities. Select payload data transmission code rate to improve communication efficiency and communication flexibility;
(2)根据不同有效载荷数据的种类，结合卫星在轨任务规划，动态调度有效载荷数据源进行处理，提升有效载荷星地大回路通信效率；(2) According to the types of different payload data, combined with the satellite on-orbit mission planning, dynamically schedule the payload data source for processing, and improve the communication efficiency of the payload satellite-ground loop;
(3)有效载荷的供电支路和数据支路均采用交叉通道链路的连接方式，通过交叉备保的冗余设计方法，能够大幅提高系统可靠性，保证有效载荷的正常工作；(3) Both the power supply branch and the data branch of the payload adopt the connection mode of the cross-channel link, and the redundancy design method of the cross backup can greatly improve the system reliability and ensure the normal operation of the payload;
(4)通过对有效载荷预先的健康分级划定和相应健康管理策略的制定，当有效载荷工作异常时，能够根据异常所处的健康等级采取分级处理的健康管理策略，有效实现卫星有效载荷健康管理，极大降低了健康管理的实现成本。(4) Through the pre-defined health classification of the payload and the formulation of the corresponding health management strategy, when the payload is working abnormally, a health management strategy of hierarchical processing can be adopted according to the health level of the abnormality, and the health of the satellite payload can be effectively realized. Management, greatly reducing the implementation cost of health management.
附图说明Description of drawings
图1为本发明中卫星有效载荷任务管理系统架构示意图；Fig. 1 is a schematic diagram of the architecture of the satellite payload task management system in the present invention;
图2为本发明中数据存储复接器对遥测数据进行调度的示意图；Fig. 2 is the schematic diagram that the data storage multiplexer in the present invention schedules telemetry data;
图3为本发明中卫星遥测模态的定义、划分示意图；Fig. 3 is the definition, the schematic diagram of division of satellite telemetry mode in the present invention;
图4为本发明中有效载荷与数据管理计算机之间的交叉通道数据链路连接示意图。Fig. 4 is a schematic diagram of the cross-channel data link connection between the payload and the data management computer in the present invention.
具体实施方式detailed description
下面就结合附图对本发明做进一步介绍。参见图1，本发明提供一种卫星有效载荷任务管理系统，包括数据管理计算机、数据总线、电池、配电器、有效载荷、数据存储复接器和星地遥测遥控处理单元。能够实现卫星对于星载有效载荷的供配电、遥测遥控、健康管理等功能的一体化任务管理，能够有效适应日益复杂的卫星有效载荷技术发展。The present invention will be further introduced below in conjunction with the accompanying drawings. Referring to Fig. 1, the present invention provides a satellite payload task management system, including a data management computer, a data bus, a battery, a distributor, payload, a data storage multiplexer and a satellite-ground telemetry remote control processing unit. It can realize the integrated task management of the satellite's power supply and distribution, telemetry and remote control, health management and other functions for the satellite's payload, and can effectively adapt to the increasingly complex satellite payload technology development.
所述数据管理计算机、配电器、有效载荷、数据存储复接器和星地遥测遥控处理单元均与所述数据总线相连接；所述数据总线可以根据实际卫星研制需求，结合通信数据量和单机接口形式，选择1553B、CAN、RS485、SpaceWire等数据总线；所述数据总线的工作过程包括：The data management computer, power distributor, payload, data storage multiplexer, and satellite-to-earth telemetry remote control processing unit are all connected to the data bus; the data bus can combine the amount of communication data and the stand-alone Interface form, choose 1553B, CAN, RS485, SpaceWire and other data buses; the working process of the data bus includes:
(a)转发数据管理计算机的控制指令，根据指令功能转发给配电器、数据存储复接器、星地遥测遥控处理单元等单机设备；(a) Forward the control instructions of the data management computer, and forward them to stand-alone devices such as power distributors, data storage multiplexers, satellite-ground telemetry and remote control processing units according to the instruction functions;
(b)接收配电器、有效载荷的状态参数，并发送给数据管理计算机，使其掌握配电器和有效载荷的工作状态。(b) Receive the status parameters of the distributor and payload, and send them to the data management computer, so that it can grasp the working status of the distributor and payload.
其中，所述数据管理计算机作为整个卫星有效载荷管理的核心单机，,通过所述数据总线控制配电器的加、断电，控制有效载荷的开关机、控制数据存储复接器转换遥测数据的格式和调度遥测数据以及控制所述星地遥测遥控处理单元的遥测码率切换和天地基的遥测数据传输。所述数据管理计算机工作过程包括：Wherein, the data management computer is the core stand-alone of the entire satellite payload management, controls the power on and off of the power distribution device through the data bus, controls the power on and off of the payload, and controls the data storage multiplexer to convert the format of the telemetry data and scheduling telemetry data and controlling the telemetry code rate switching of the satellite-ground telemetry remote control processing unit and the transmission of space-ground telemetry data. The working process of the data management computer includes:
(a)发送给配电器有效载荷加、断电指令，控制有效载荷何时开始上电；(a) Send power-on and power-off instructions to the payload of the distributor to control when the payload starts to power on;
(b)发送给有效载荷开关机指令和关键时序动作指令，使其按照规定的时序动作进行工作；(b) Send the payload on/off command and the key sequence action command to make it work according to the specified sequence action;
(c)发送给数据存储复接器有效载荷遥测数据调度指令，控制其数据格式形成方式；(c) Send the payload telemetry data scheduling instruction to the data storage multiplexer to control its data format formation method;
(d)根据现有信道资源使用情况，发送给星地遥测遥控处理单元遥测码率切换指令、天地基开关指令等；(d) According to the usage of existing channel resources, send to the satellite-earth telemetry remote control processing unit the telemetry code rate switching instruction, the space-ground switching instruction, etc.;
(e)根据接收到的配电器和有效载荷的状态参数判断所述配电器和有效载荷的处理机是否故障，并检测自身处理机是否故障，根据发生故障情况控制执行有效载荷与配电器之间的交叉通道供电链路切换策略，以及数据管理计算机与有效载荷之间的交叉通道数据链路切换策略；(e) Judging whether the processor of the distributor and the payload is faulty according to the received state parameters of the distributor and the payload, and detecting whether the processor itself is faulty, and controlling and executing the connection between the payload and the distributor according to the failure situation The switching strategy of the cross-channel power supply link, and the switching strategy of the cross-channel data link between the data management computer and the payload;
(f)根据接收到的有效载荷的状态参数和从数据存储复接器调取的健康分级和健康管理策略，判断所述有效载荷的健康等级并根据该判断的健康等级采取相应的健康管理策略。(f) According to the state parameters of the received payload and the health classification and health management strategy retrieved from the data storage multiplexer, judge the health grade of the payload and adopt a corresponding health management strategy according to the judged health grade .
所述有效载荷的数量为一个或多个，所述有效载荷中的每个与所述数据存储复接器之间均建立有相应的信道并将生成的遥测数据通过所述信道传输至所述数据存储复接器，所述有效载荷通过所述数据总线接收所述数据管理计算机发送的开关机指令和关键时序动作指令并将所述有效载荷的状态参数通过所述数据总线反馈给所述数据管理计算机；There are one or more payloads, and a corresponding channel is established between each of the payloads and the data storage multiplexer, and the generated telemetry data is transmitted to the Data storage multiplexer, the payload receives the power-on/off instructions and key timing action instructions sent by the data management computer through the data bus, and feeds back the state parameters of the payload to the data bus through the data bus. manage computers;
所述电池向所述配电器供给28V母线电压；所述配电器接收所述电池提供的母线电压，经DC/DC变换，转换为相应的所述有效载荷所需的二次电压，根据所述数据管理计算机通过数据总线发送的加、断电指令，对相应信道的有效载荷进行加、断电操作，并将加、断电的状态参数通过所述数据总线反馈给所述数据管理计算机；The battery supplies the 28V bus voltage to the distributor; the distributor receives the bus voltage provided by the battery, converts it into the corresponding secondary voltage required by the payload through DC/DC conversion, and according to the The data management computer performs power-on and power-off operations on the payload of the corresponding channel through the power-on and power-off instructions sent by the data bus, and feeds back the state parameters of power-on and power-off to the data management computer through the data bus;
所述数据存储复接器接收所述有效载荷传输来的遥测数据，根据不同有效载荷的接口类型，采用模块化配置的设计思路进行标准化处理得到所述有效载荷的数据源包，并通过所述数据总线接收所述数据管理计算机的遥测数据调度指令以对遥测数据进行调度，以生成组信道传输帧并向所述星地遥测遥控处理单元传输；所述数据存储复接器对遥测数据进行标准化处理包括：对于从各有效载荷接收到的不同格式的遥测数据进行信号的调理、放大，转换为统一的信号形式，得到所述有效载荷的数据源包。The data storage multiplexer receives the telemetry data transmitted by the payload, and according to the interface types of different payloads, adopts the design concept of modular configuration for standardized processing to obtain the data source package of the payload, and passes the The data bus receives the telemetry data scheduling instruction of the data management computer to schedule the telemetry data, so as to generate a group channel transmission frame and transmit it to the satellite-ground telemetry remote control processing unit; the data storage multiplexer standardizes the telemetry data The processing includes: conditioning and amplifying the telemetry data received from each payload in different formats, converting them into a unified signal form, and obtaining the data source packet of the payload.
参见图2，所述数据存储复接器对遥测数据进行调度包括：Referring to Fig. 2, the data storage multiplexer scheduling the telemetry data includes:
(1)所述数据存储复接器接收到所述数据管理计算机发送的遥测数据调度指令，开始遥测数据的调度；(1) The data storage multiplexer receives the telemetry data scheduling instruction sent by the data management computer, and starts scheduling the telemetry data;
(2)参见图2(a)，当卫星具备测控覆盖条件时，所述数据存储复接器接收所述数据管理计算机的控制指令进入实时工作模式，所述实时工作模式包括：一方面将全部有效载荷的遥测数据置入数据存储复接器内的遥测数据池内缓存，另一方面根据当前卫星遥测模态的需要，通过数据存储复接器内的包调度单元的调度算法选取部分有效载荷的遥测数据组成信道传输帧，将所述信道传输帧向星地遥测遥控处理单元进行下行传输(实时传输方式)；其中，当卫星遥测模态需要全部有效载荷的遥测数据时，则从所述遥测数据池调取全部有效载荷的遥测数据组成信道传输帧并向星地遥测遥控处理单元进行下行传输；(2) Referring to Fig. 2 (a), when the satellite has the measurement and control coverage condition, the data storage multiplexer receives the control instruction of the data management computer and enters the real-time working mode, and the real-time working mode includes: on the one hand, all The telemetry data of the payload is cached in the telemetry data pool in the data storage multiplexer. On the other hand, according to the needs of the current satellite telemetry mode, some payloads are selected through the scheduling algorithm of the packet scheduling unit in the data storage multiplexer. The telemetry data constitutes a channel transmission frame, and the channel transmission frame is downlinked to the satellite-earth telemetry remote control processing unit (real-time transmission mode); wherein, when the satellite telemetry mode needs the telemetry data of all payloads, then from the telemetry The data pool retrieves the telemetry data of all payloads to form a channel transmission frame and transmits it downlink to the satellite-ground telemetry remote control processing unit;
(3)参见图2(b)，当卫星不具备测控覆盖条件时，所述数据存储复接器接收所述数据管理计算机的控制指令进入记录工作模式，所述记录工作模式包括：将遥测数据池中的全部有效载荷的遥测数据存储到数据存储复接器内的包存储区中；(3) Referring to Fig. 2 (b), when the satellite does not have the measurement and control coverage conditions, the data storage multiplexer receives the control command of the data management computer and enters the recording mode, and the recording mode includes: storing telemetry data Telemetry data for all payloads in the pool is stored in the packet storage area within the data storage multiplexer;
(4)参见图2(c)，当卫星从不具备测控覆盖条件转入具备测控覆盖条件后，所述数据存储复接器接收所述数据管理计算机的控制指令进入回放工作模式，所述回放工作模式包括：从所述包存储区中提取有效载荷的遥测数据，根据当前卫星遥测模态的需要，通过数据存储复接器内的包调度单元的调度算法选取有效载荷的遥测数据组成信道传输帧，将信道传输帧向星地遥测遥控处理单元进行下行传输。(4) Referring to Fig. 2 (c), when the satellite is transferred from not possessing measurement and control coverage conditions to possessing measurement and control coverage conditions, the data storage multiplexer receives the control instruction of the data management computer and enters the playback working mode, and the playback The working mode includes: extracting the telemetry data of the payload from the packet storage area, according to the needs of the current satellite telemetry mode, selecting the telemetry data of the payload to form a channel transmission through the scheduling algorithm of the packet scheduling unit in the data storage multiplexer Frame, the channel transmission frame is downlink transmitted to the satellite ground telemetry remote control processing unit.
所述根据当前卫星遥测模态的需要，通过数据存储复接器内的包调度单元的调度算法选取部分有效载荷的数据源包包括：According to the needs of the current satellite telemetry mode, the data source package for selecting part of the payload through the scheduling algorithm of the packet scheduling unit in the data storage multiplexer includes:
(1)预先根据卫星的飞行阶段或任务模式划分出多个卫星遥测模态；(1) Divide multiple satellite telemetry modes in advance according to the flight phase or mission mode of the satellite;
(2)预先根据不同的卫星遥测模态确定不同的有效载荷的数据源包组合并建立映射关系；(2) Determining the combination of data source packets of different payloads in advance according to different satellite telemetry modes and establishing a mapping relationship;
(3)在切换到当前卫星遥测模态时，根据当前卫星遥测模态与所述数据源包组合的映射关系，对所需的有效载荷的数据源包进行动态调度。(3) When switching to the current satellite telemetry mode, dynamically schedule the required payload data source packets according to the mapping relationship between the current satellite telemetry mode and the combination of the data source packets.
在分包遥测基础上，将不同数据源包的组合定义为一种遥测模态，一种遥测模态对应一个飞行阶段或任务模式，参见图3，遥测模态1对应数据源包1和数据源包2，遥测模态2对应数据源包3、数据源包4和数据源包5，遥测模态3对应数据源包6、7、8。通过分包遥测动态调度策略，能够根据卫星遥测模态，灵活动态地调度有效载荷数据源进行处理，实现不同遥测模态之间的快速、可靠切换，满足不同任务阶段、任务模式的需求，有效地提升了有效载荷在星地大回路的通信效率。On the basis of sub-package telemetry, the combination of different data source packages is defined as a telemetry mode, and a telemetry mode corresponds to a flight phase or mission mode, see Figure 3, telemetry mode 1 corresponds to data source package 1 and data Source package 2, telemetry mode 2 corresponds to data source package 3, data source package 4, and data source package 5, and telemetry mode 3 corresponds to data source packages 6, 7, and 8. Through the subcontracted telemetry dynamic scheduling strategy, it is possible to flexibly and dynamically schedule the payload data source for processing according to the satellite telemetry mode, realize fast and reliable switching between different telemetry modes, and meet the needs of different mission stages and mission modes, effectively It greatly improves the communication efficiency of the payload in the star-to-earth circuit.
所述有效载荷与所述配电器之间的采用交叉通道供电链路连接，所述有效载荷与所述数据管理计算机之间采用交叉通道数据链路(CCDL)连接。能够实现有效载荷的供电和数据的冗余备保，有效避免了单通故障导致有效载荷无法正常工作的问题，大幅提高了系统的可靠性。The effective load is connected to the distribution device by a cross-channel power supply link, and the effective load is connected to the data management computer by a cross-channel data link (CCDL). It can realize the power supply of the payload and the redundant backup of data, effectively avoiding the problem that the payload cannot work normally due to a single-pass failure, and greatly improving the reliability of the system.
参见图4，以有效载荷与所述数据管理计算机之间通过交叉通道数据链路(CCDL)连接为例，说明其在应对设备故障时的切换策略：Referring to Fig. 4, it is taken as an example to connect by cross-channel data link (CCDL) between the payload and the data management computer, explain its switching strategy when dealing with equipment failure:
数据管理计算机和有效载荷均采用A处理机(简称A机)和B处理机(简称B机)的双机冗余备份方式，当数据管理计算机向有效载荷发送控制指令时，默认状态下，由数据管理计算机的A处理机发送给有效载荷的A处理机，若检测到有效载荷的A处理机故障时，则由有效载荷A处理机工作切换到B处理机工作，此时数据管理计算机的A处理机将所述控制指令通过所述交叉通道数据链路转而发送给有效载荷的B处理机。当数据管理计算机的A处理机出现故障时，自主切换至B处理机进行工作，原理同上。当有效载荷发送给数据管理计算机状态参数时，切换策略同上。Both the data management computer and the payload adopt the dual-machine redundant backup mode of A processor (abbreviated as A machine) and B processor (abbreviated as B machine). When the data management computer sends a control command to the payload, by default, the The A processor of the data management computer sends it to the A processor of the payload. If a failure of the A processor of the payload is detected, the work of the payload A processor is switched to the work of the B processor. At this time, the A processor of the data management computer The processor sends the control instruction to the B processor of the payload through the cross-channel data link. When the A processor of the data management computer fails, it will automatically switch to the B processor to work, and the principle is the same as above. When the payload is sent to the data management computer state parameter, the switching strategy is the same as above.
此外，所述有效载荷与所述配电器之间采用交叉通道供电链路连接时，在应对设备故障时采取的切换策略包括：In addition, when the payload is connected to the distributor using a cross-channel power supply link, the switching strategy adopted in response to equipment failure includes:
所述配电器和所述有效载荷均采用A处理机和B处理机的双处理机冗余备份方式，当配电器向有效载荷供电时，默认状态下，由配电器的A处理机发送给有效载荷的A处理机；若检测到有效载荷的A处理机故障时，则由有效载荷A处理机工作切换到B处理机工作，此时配电器的A处理机通过所述交叉通道供电链路转而供电给有效载荷的B处理机；同样的，当配电器的A处理机出现故障时，则由配电器的A处理机工作切换到B处理机工作。Both the distributor and the payload adopt the dual-processor redundant backup mode of the A processor and the B processor. When the distributor supplies power to the payload, in the default state, the A processor of the distributor sends the effective A processor of the load; if the failure of the A processor of the payload is detected, the work of the A processor of the payload is switched to the work of the B processor, and at this time, the A processor of the distributor is transferred through the power supply link of the cross channel The power supply is supplied to the B processor of the payload; similarly, when the A processor of the distributor fails, the work of the A processor of the distributor is switched to the work of the B processor.
所述星地遥测遥控处理单元接收所述数据存储复接器传输来的所述组信道传输帧，通过所述数据总线接收所述数据管理计算机发送的遥测码率切换指令和天地基开关指令，以按一定的码速率选择将遥测数据进行天基或者地基传输；根据现有卫星的测控覆盖条件，可灵活进行天基、地基数据通信切换，适应不同信道资源容量，选择有效载荷数据传输码率，提高通信效率和通信灵活性。The satellite-ground telemetry remote control processing unit receives the group channel transmission frame transmitted by the data storage multiplexer, receives the telemetry code rate switching instruction and the space-ground switching instruction sent by the data management computer through the data bus, Select the space-based or ground-based transmission of telemetry data according to a certain code rate; according to the existing satellite measurement and control coverage conditions, it can flexibly switch between space-based and ground-based data communication, adapt to different channel resource capacities, and select the payload data transmission code rate , Improve communication efficiency and communication flexibility.
本发明管理系统还具有卫星健康管理功能，主要包括：预先对所述有效载荷的健康情况进行分级并制定相应的健康等级的健康管理策略，将所述分级和策略预先存储于所述数据存储复接器中；有效载荷工作时，所述数据管理计算机根据接收到的所述有效载荷的状态参数和从所述数据存储复接器调取的所述分级和策略，判断所述有效载荷的健康等级并根据该判断的健康等级采取相应的健康管理策略。能够大幅降低卫星有效载荷健康管理的实现代价，实现低成本、灵活、自主的有效载荷健康诊断和评估。The management system of the present invention also has a satellite health management function, which mainly includes: grading the health status of the payload in advance and formulating a health management strategy corresponding to the health level, and storing the grading and strategy in the data storage complex in advance. In the multiplexer; when the payload is working, the data management computer judges the health of the payload according to the received status parameters of the payload and the classification and strategy retrieved from the data storage multiplexer Level and adopt corresponding health management strategies based on the judged health level. It can greatly reduce the implementation cost of satellite payload health management, and realize low-cost, flexible and autonomous payload health diagnosis and evaluation.
本发明未详细说明部分属本领域技术人员公知常识。Parts not described in detail in the present invention belong to the common knowledge of those skilled in the art.
| Application Number | Priority Date | Filing Date | Title |
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| CN201510634237.XACN105245364B (en) | 2015-09-29 | 2015-09-29 | A kind of Satellite Payloads task management system |
| Application Number | Priority Date | Filing Date | Title |
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| CN201510634237.XACN105245364B (en) | 2015-09-29 | 2015-09-29 | A kind of Satellite Payloads task management system |
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| CN105245364Atrue CN105245364A (en) | 2016-01-13 |
| CN105245364B CN105245364B (en) | 2018-07-24 |
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| CN201510634237.XAActiveCN105245364B (en) | 2015-09-29 | 2015-09-29 | A kind of Satellite Payloads task management system |
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