Research on Wireless Networks for Intra-spacecraft

With the rapid development of onboard avionic technology, there are increasing requirements for internetworking, modularization and non-cable of spacecrafts. The onboard wireless networks technology provides one of the most important foundation to enable communication among intelligent nodes inside a spacecraft. This paper studies the application of wireless sensor networks for spacecraft. Wireless networks technology has significant advantages in reducing the weight of spacecraft, saving time in spacecraft integration. Based on wireless sensor networks, a scheme for spacecraft avionic system is put forward. The avionic system overall networks are a combination of wired and wireless networks. The block diagram and key interface design of the spacecraft overall networks are given. The design proposal of the wireless node and the data flow of the spacecraft are also analyzed. The results show that the application of wireless networks scheme is reasonable and feasible. The onboard wireless networks technology can meet the new requirements of the spacecraft in internetworking, modularization and non-cable.