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公开(公告)号:US20220121750A1
公开(公告)日:2022-04-21
申请号:US17089908
申请日:2020-11-05
Inventor: Sanghan LEE , Dongwoo SHIN , Sangwook LEE
IPC: G06F21/57 , G06F21/64 , G06F9/4401
Abstract: Disclosed herein are a method for secure booting using a route switchover function for a boot memory bus and an apparatus using the same. The method includes maintaining a reset state in order to prevent a processor from being booted, interrupting the connection between the processor and boot memory, verifying the integrity of first boot firmware stored in the boot memory, determining whether hardware damage is detected, and releasing the reset state of the processor and the interrupted state of the connection between the processor and the boot memory in consideration of whether hardware damage is detected and verification of the integrity in order to allow the processor to be booted.
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公开(公告)号:US20210354855A1
公开(公告)日:2021-11-18
申请号:US16902329
申请日:2020-06-16
Inventor: Kyeong-Ho KIM , Deokjin KIM , Sangwook LEE
Abstract: Disclosed herein is a method for recording flight data of an unmanned aerial vehicle (UAV) using blockchain technology. The method includes collecting sensor data from a sensor installed in the UAV, collecting location information of the UAV from a GPS installed therein, estimating the flight status of the UAV based on a control signal, the sensor data, and the location information, detecting an abnormal condition by comparing the flight status with the flight plan of the UAV, generating signature information corresponding to surroundings at a corresponding time based on peripheral signals collected from a receiver installed in the UAV, generating a transmission data block capable of being registered in a blockchain based on the flight status, the abnormal condition, and the signature information, transmitting the transmission data block to a flight data registration apparatus, and registering the transmission data block, received by the flight data registration apparatus, in the blockchain.
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公开(公告)号:US20250060755A1
公开(公告)日:2025-02-20
申请号:US18426543
申请日:2024-01-30
Inventor: Seyoung BAIK , Sangwook LEE
IPC: G05D1/617 , G05D1/86 , G05D109/20 , G05D111/30 , G07C5/08
Abstract: Disclosed herein are an unmanned vehicle monitoring apparatus and method. The unmanned vehicle monitoring apparatus may include a safety device including at least one of a parachute or an additional wing, or a combination thereof, and a multi-functional data recording module configured to monitor a flight state of an unmanned vehicle to detect an anomaly, control driving of the safety device according to an anomaly detection result, and record flight status data of the unmanned vehicle in a memory.
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