TY - GEN
T1 - SOS
T2 - 19th ACM International Conference on Mobile Systems, Applications, and Services, MobiSys 2021
AU - Narayana, Sujay
AU - Prasad, R. Venkatesha
AU - Prabhakar, T. V.
PY - 2021
Y1 - 2021
N2 - With the advent of Space-IoTs, the rate of launch of satellites has grown significantly. Alongside, the failure rate of satellites has also surged increased tremendously. Satellites are non-repairable systems in orbit, and the financial loss incurred when the satellites fail before their expected mission time is substantial. If the source of a failure is known while the satellite is in orbit, then there is a possibility to revive it by sending appropriate commands from ground stations. In this work, we present a simple, independent satellite health monitoring system called Chirper. The Chirper is equipped with multiple modules such as IMU, isolated voltage and current measurement probes, and an onboard communication channel. We present a new approach to measure low DC voltages in an isolated way, providing a resolution and accuracy of around 1 V. We evaluated the design and performance of the Chirper through simulation, testing it in space systems test facility, and by mounting it on a helium balloon. With extensive experiments we show that 90% of the time the dc voltage measurement error is within 0.8 V, and the maximum error is 0.9 V. We expect to launch the Chirper soon on a space system.
AB - With the advent of Space-IoTs, the rate of launch of satellites has grown significantly. Alongside, the failure rate of satellites has also surged increased tremendously. Satellites are non-repairable systems in orbit, and the financial loss incurred when the satellites fail before their expected mission time is substantial. If the source of a failure is known while the satellite is in orbit, then there is a possibility to revive it by sending appropriate commands from ground stations. In this work, we present a simple, independent satellite health monitoring system called Chirper. The Chirper is equipped with multiple modules such as IMU, isolated voltage and current measurement probes, and an onboard communication channel. We present a new approach to measure low DC voltages in an isolated way, providing a resolution and accuracy of around 1 V. We evaluated the design and performance of the Chirper through simulation, testing it in space systems test facility, and by mounting it on a helium balloon. With extensive experiments we show that 90% of the time the dc voltage measurement error is within 0.8 V, and the maximum error is 0.9 V. We expect to launch the Chirper soon on a space system.
UR - http://www.scopus.com/inward/record.url?scp=85110144115&partnerID=8YFLogxK
U2 - 10.1145/3458864.3466862
DO - 10.1145/3458864.3466862
M3 - Conference contribution
AN - SCOPUS:85110144115
T3 - MobiSys 2021 - Proceedings of the 19th Annual International Conference on Mobile Systems, Applications, and Services
SP - 283
EP - 295
BT - MobiSys 2021 - Proceedings of the 19th Annual International Conference on Mobile Systems, Applications, and Services
PB - Association for Computing Machinery (ACM)
Y2 - 24 June 2021 through 2 July 2021
ER -