US 11,996,697 B2
Autonomous vehicle support using hybrid-powered embedded sensors
Shantanu Chakrabartty, St. Louis, MO (US); Kenji Aono, St. Louis, MO (US); Sri Harsha Kondapalli, St. Louis, MO (US); and Owen Pochettino, St. Louis, MO (US)
Assigned to Washington University, St. Louis, MO (US)
Filed by Shantanu Chakrabartty, St. Louis, MO (US); Kenji Aono, St. Louis, MO (US); Sri Harsha Kondapalli, St. Louis, MO (US); and Owen Pochettino, St. Louis, MO (US)
Filed on Mar. 5, 2020, as Appl. No. 16/810,837.
Claims priority of provisional application 62/813,998, filed on Mar. 5, 2019.
Prior Publication US 2020/0287411 A1, Sep. 10, 2020
Int. Cl. H02J 50/00 (2016.01); B60W 20/20 (2016.01); B60W 20/50 (2016.01); H02J 50/27 (2016.01); H02J 50/80 (2016.01); H04W 4/38 (2018.01); H04W 4/44 (2018.01); H04W 4/80 (2018.01)
CPC H02J 50/001 (2020.01) [B60W 20/20 (2013.01); B60W 20/50 (2013.01); H02J 50/27 (2016.02); H02J 50/80 (2016.02); H04W 4/38 (2018.02); H04W 4/44 (2018.02); H04W 4/80 (2018.02)] 16 Claims
OG exemplary drawing
 
1. A hybrid-powered RFID sensor device comprising a sensing module operatively coupled to a power source via an RF-triggered load switching module, the RF-triggered load switching module comprising an energy-harvesting antenna coupled to a charge pump, the charge pump coupled to a low-leakage load switch, wherein the RF-triggered load switching module operatively couples the power source to the sensing module by receiving and rectifying the RF interrogation signal at the energy-harvesting antenna and boosting the rectified RF interrogation signal into a DC switch activation signal sufficient to close the low-leakage switch.