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未来航天器将装备不断完善的数据处理系统以实现较大的适用性、自主能力和操作速度。集中式遥测遥控系统及小型计算机将由多重处理器组成的模块系统取代,模块系统与通信纲络相连。这种系统具有模块性,可扩展性和可靠性的特点。然而,该系统除了要增加硬件外,还存在用于使并行处理同步的处理之间的通信装置的问题和能满足要求的通信网络的极难设计的问题。但是,由于并行处理的优点可以得到充分的利用,因此分配式系统的处理速度自然要比集中式系统的快。不过内部通信的额外开销会降低系统总处理能力。本文介绍了可用于航天器数据处理系统的硬件和软件的某些特点,并介绍了在设计期间可能出现的一些问题,这些问题基本上与信息处理功率和通信协议有关。
Future spacecraft will be equipped with continuous improvement of data processing systems to achieve greater applicability, autonomy and speed of operation. The centralized telemetering and remote control system and small computer will be replaced by a multi-processor module system, the module system is connected with the communication network. This system has the characteristics of modularity, scalability and reliability. However, in addition to adding hardware, the system has problems of communication devices between processes for synchronizing parallel processing and extremely difficult design of communication networks that can meet requirements. However, since the advantages of parallel processing can be fully utilized, distributed systems naturally process faster than centralized systems. However, the overhead of internal communications will reduce the overall system processing power. This article describes some of the features of hardware and software that can be used in a spacecraft data processing system and describes some of the issues that may arise during the design process that are fundamentally related to information processing power and communication protocols.