Shelf-mountable imaging system

A method for battery power management of a shelf-mountable imaging device having a hardware system that includes a main processor circuit, a motion detector, first and second imaging devices, and a companion processor circuit, the method comprising

• powering ON the main processor circuit;
• subsequent to the powering ON of the main processor circuit, performing a wake-up operation by powering ON the motion detector, the motion detector providing data to the main processor circuit indicating an absence of motion and, subsequently, powering OFF the motion detector;
• subsequent to the wake-up operation, performing an image capture operation by powering ON the companion processor circuit to an ON not transmitting WiFi mode, powering ON each of the first and second imaging devices to an ENABLED not capturing mode, then powering the first imaging device to an ON capturing mode, the first imaging device then performing image capture, subsequently returning the first imaging device to the ENABLED not capturing mode and then powering the second imaging device to an ON capturing mode, the second imaging device then performing image capture and subsequently returning the second imaging device to the ENABLED not capturing mode;
• subsequent to the image capture operation, performing an image transfer operation by transferring the captured images of the first imaging device to the companion processor circuit and subsequently transferring the captured images of the second imaging device to the companion processor circuit then powering both the first and second imaging devices OFF;
• and
• subsequent to the image transfer operation, performing a WiFi image transfer operation by powering ON a WiFi transceiver of the companion processor circuit to place the companion processor circuit in an ON transmitting WiFi mode, transmitting via the WiFi transceiver the captured images to a remote computing device, then powering OFF the WiFi transceiver to place the companion processor circuit in the ON not transmitting WiFi mode and subsequently powering OFF the companion processor circuit.