| CPC H04N 23/651 (2023.01) [G06F 1/325 (2013.01); H04N 7/181 (2013.01); H04N 23/52 (2023.01); H04N 23/667 (2023.01)] | 12 Claims |
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1. A system for dashcam power management, comprising:
an image sensor mounted on a vehicle capturing image data near or inside the vehicle;
a microphone mounted on the vehicle recording audio data near or inside the vehicle;
a memory storing image data captured by said image sensor;
a buffer temporarily storing image data captured by said image sensor and audio data recorded by said microphone;
an inertial measurement unit (IMU) that senses an impact on the vehicle;
a switch connected to said image sensor;
a main system on chip (SOC) microcontroller connected to said image sensor via said switch, that stores image data captured by said image sensor and audio data recorded by said microphone in said memory, the main SOC being in a dormant power mode while the vehicle is parked or idle, and in an active power mode while the vehicle is moving, and transitioning from dormant mode to active mode when said IMU senses that the vehicle suffers an impact;
a low-power secondary SOC microcontroller connected to said image sensor via said switch, to said microphone, and to said IMU, that manages power of the system and stores image data captured by said image sensor and audio data recorded by said microphone in said buffer, such that said buffer stores image data and audio data that was respectfully captured and recorded prior to and upon said IMU detecting an impact on the vehicle, while said main SOC transitions from dormant mode to active mode, and transmits the buffered data to said main SOC when said main SOC is in active power mode, thereby avoiding loss of vital data during the transition time while said main SOC loads its firmware and smoothly takes over said image sensor; and
a battery providing power to said image sensor, said microphone, said buffer, said IMU, said switch, said main SOC, and said secondary SOC.
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