指令與資料處理次系統

Command & Data Handling

本篇文章說明福衛五號C&DH（Command & Data Handling）指令與資料處理次系統之功能架構、發展歷程與軌道運作現況。C&DH負責接收、處理來自地面操控中心之上傳指令，以管控衛星構型、調整衛星姿態、執行拍攝影像任務和科學酬載實驗；同時亦執行飛行軟體之電力、熱控、姿態控制功能，收集衛星狀態資料下傳地面站，以研判衛星健康狀況。本次系統主要元件為OBC（On Board Computer）衛星電腦，為國內首次自製，由太空中心進行電氣與電路設計，中科院則執行機械、熱控設計以及製作組裝。 This paper introduces FORMOSAT-5 C&DH(Command & Data Handling) subsystem related with function, architecture, development fl ow and orbit operation status. C&DH is to receive and handle the ground stations uplink TC(Telecommand) . It performs TC to control satellite configurations, adjust attitude, take images and conduct science payload experiments. Simultaneously, it executes FSW(Flight Software) for Power/Thermal/Attitude control. The satellite SOH(Status of Health) data are also collected and downlinked to the ground stations for monitor and analysis.OBC(On Board Computer) is the key component of C&DH. It’s fi rst indigenous component in Taiwan. NSPO is responsible for electrical circuit design. NCSIST is responsible for mechanical & thermal design, PCB & chassis productions and assembly.