Installation of outdoor movement detection sensors at remote locations
I am Mr know-nothing in this filed so pardon me for not using the technical jargons suitable for explaining my conundrum.
I am assigned to keep a check on intrusion passages to a power plant spread over several hundred sq km. I have identified few sneak inlets but keeping them under constant observation is an herculean task. CCTV, drone footage, electrical fence, search lights, 24/7 patrolling none options work either for cost or effort purpose. Area is mostly without cellular coverage.
I came across these interesting videos of small electronic circuits of proximity sensors arduino working on different principles like doppler etc. They are cheap, passive, maintenance free and with little effort (I hope so) can be developed into a network or mesh of sensors that trip the alarm in case of intrusion.
Now the problem areas.
1. Operating Life - How to sustain such a sensor in a remote area through battery for at least 3 to 4 days. What kind of batteries would be required. Can the revisit time or battery life be extended upto a week.