Hi,

I am thinking about a system with limited daily energy budget (about 200Wh). I was thinking to use a low power technology like PIR for early detection of potential intruders and a video intelligent camera served by a 4G connection to transmit alarms plus some footage (I was thinking 1-minute pills) just to check camera detection work. Now I have not a precise idea of how to manage video camera in a constrained duty cycle situation. There are cameras featuring very low consumption in standby function and fast resume? What if the camera is maintained in power off and then on triggered by the PIR? How much time it will take to resume? There are cameras designed for this kind of application? 

Regards

Lino