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目的设计基于ARM9(advanced RISC machines)的舱外航天服腕部显示器,提升舱外服信息显示能力。方法系统采用基于ARM9核心的S3C2440A处理器作为主控芯片,同时选用液晶显示屏、电阻式触摸屏、摄像头分别作为信息显示装置、控制装置和视频采集装置。通过编写设备驱动程序和应用程序,在显示器上输出视频图像、文本信息并由触摸屏控制信息的显示。结果根据功能要求设计了系统总体方案,完成了系统软件和显示界面的设计,液晶屏可清晰稳定地显示视频图像和文本信息,触摸屏可灵敏准确地控制信息的显示。结论腕部显示器可以作为改进舱外航天服信息显示系统的一种可行方案。
Objective To design an armored spaceship wrist display based on ARM9 (advanced RISC machines) to improve the information display ability of the service. Method The system uses the S3C2440A processor based on the ARM9 core as the master chip. At the same time, LCD screen, resistive touch screen and camera are respectively used as the information display device, the control device and the video capture device. By writing device drivers and applications, video images, textual information and touch screen control information are displayed on the display. Results According to the functional requirements, the overall scheme of the system was designed and the design of the system software and display interface was completed. The LCD screen could display the video image and the text information clearly and stably. The touch screen could control the information display flexibly and accurately. Conclusion The wrist display can be used as a feasible solution to improve the information display system of the spacesuit.