Purpose

Recent spacecraft attitude control systems tend to use wireless communication for cost-saving and distributed mission purposes while encountering limited communication resources and data exposure issues. This paper aims to study the attitude control problem with low communication frequency under the sampled-data.

Design/methodology/approach

The authors propose constructive control system structures based on quantization and event-triggered methods for intra-spacecraft and multi-spacecraft systems, and they also provide potential solutions to shield the control system's data security. The proposed control architectures can effectively save communication resources for both intra-spacecraft and multi-spacecraft systems.

Findings

The proposed control architectures no longer require sensors with trigger-ing mechanism and can achieve distributed control schemes. This paper also provides proposals of employing the public key encryption to secure the data in control-loop, which is transmitted by the event-triggered control mechanism.

Practical implications

Spacecraft attempts to use wireless communication, yet the attitude control system does not follow up promptly to accommodate these variations. Compared with existing approaches, the proposed control structures can save communication resources of control-loop in multi-sections effectively, and systematically, by rationally configuring the location of quantization and event-triggered mechanisms.

Originality/value

This paper presents several new control schemes and a necessary condition for the employment of encryption algorithms for control systems based on event-based communication.

中文翻译：

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使用采样数据和加密方法以低通信频率控制航天器姿态的构造方案

目的

最近的航天器姿态控制系统倾向于将无线通信用于节省成本和分配任务的目的，同时遇到有限的通信资源和数据暴露问题。本文旨在研究采样数据下通信频率低的姿态控制问题。

设计/方法/方法

作者提出了基于量化和事件触发方法的建设性控制系统结构，用于航天器和多航天器系统，它们还提供了潜在的解决方案来保护控制系统的数据安全性。所提出的控制体系结构可以有效地节省航天器内系统和多航天器系统的通信资源。

发现

所提出的控制体系结构不再需要具有触发机制的传感器，并且可以实现分布式控制方案。本文还提出了使用公钥加密将数据保护在控制环中的建议，该控制环是由事件触发的控制机制传输的。

实际影响

航天器尝试使用无线通信，但是姿态控制系统并未及时跟进以适应这些变化。与现有方法相比，所提出的控制结构通过合理配置量化和事件触发机制的位置，可以有效，系统地节省多节控制回路的通信资源。

创意/价值

本文提出了几种新的控制方案，并为基于事件通信的控制系统采用加密算法提供了必要条件。