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Ground Support Software

Ground Support Software. Yongho Kim Aug 2, 2011. What CINEMA sub-system I been working on?. : My Job. What CINEMA sub-system I been working on?. : My Job. What was the state of the system when I got started?. What is the state now, and who is affected by it?. TLM_receiver

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Ground Support Software

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  1. Ground Support Software Yongho Kim Aug 2, 2011

  2. What CINEMA sub-system I been working on? : My Job

  3. What CINEMA sub-system I been working on? : My Job

  4. What was the state of the system when I got started?

  5. What is the state now, and who is affected by it? • TLM_receiver • Using C# (programming language) • Send telemetry transmitted from satellite to RS decoder • Store telemetry as a file which can be re-loaded if Mission Planning System wants • Function • -Receive telemetry from S-band RF device using RS422 I/F (done) • -Error handling(almost done) • Remote operation(on going) • Store telemetry as a file(done) Interface -TCP/IP(done) -Error handling(done) Error Handling -TCP/IP exception(done) -Remote operation exception(on going) Integration test & Inner functional test -Inner functional test (done) -Integration test with RS decoder (done) - Integration test with s-band RF chain(not performed)

  6. What is the state now, and who is affected by it? • CCSDS(255, 223) RS(Reed-Solomon) decoder • Use RS coder (verified by satellite company in Korea) based on C# • Decode telemetry and can correct up to 80 bytes for each CCSDS frame(1,275 bytes) Interface -TCP/IP(done) -Error handling(on going) Function - Decode telemetry (done) - Error handling (done) - Remote operation(on going) Error Handling -TCP/IP exception(on going) -Remote operation exception(on going) Integration test & Inner functional test -Inner functional test (done) -Integration test with GSEOS (done) - Integration test with TLM_receiver (done)

  7. What is the state now, and who is affected by it? • GSEOS(Update EPS, Battery statement in GSEOS) • Parsing EPS, Battery information with calibration equiation based on EPS document • Integration test with FSW using EPS, Battery device is done

  8. What is the state now, and who is affected by it? • GSEOS(Implementation of delay CMD based on CTM) • Generate delay CMD with timestamp(5 bytes) • Integration test with newest version of FSW is done • Transmitted delay CMD was executed depending on the timestamp • We tested only start downlink, stop downlink delay CMD. Implementation of other delay CMD defined in CTM is matter of time Transmit delay CMD With timestamp CMD will be executed Time The timestamp

  9. What is the state now, and who is affected by it? • GSEOS(Showing payload data) • STEIN • According to stein data structure, have to draw 32 stripcharts for 32 ch detector • For now, we considerd only 2 ch • MAGIC • Just set up a window for MAGIC science data • When MAGIC module in FPGA is done, we can test with FSW using IIB, MAGIC Event count Second channel detector Fourth channel detector time

  10. What is the state now, and who is affected by it? • GSEOS(RF test with Jonathan) • GSEOS transmits telecommand through radio equipments • Test was successful and transmitted data was shown in Helium radio configuration program Transceiver With TNC Helium radio Configuration program Helium Radio GSEOS dsPic Digital (CDI packet) Digital RF signal Digital Attenuators time

  11. What is the state now, and who is affected by it? • Ground Station Manager • Manage whole ground system • Send command(not telecommand) to perform what we want to do • Monitor the status of each sub-system(i.e. TLM_receiver, RS decoder, GSEOS1 and 2) • I/F is done • Connection between subsystem and GS Manager is using private TCP line(not data line)

  12. How has this progress been documented? • Write ground support software CPD document • Write GSEOS CPD document • Write ground station operation document

  13. What remains before this system is part of a flight-ready satellite?

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