The basis for this strategy is that when someone is 'Away', the home is always locked by at least one deadbolt.
Equipment:
wired hidden door sensor
one motion sensor
two normal relays
an 'Occupancy' relay which has one control for opening it, and a separate control for closing it (where do I find one?)
Configuration:
the wired hidden door sensor is placed behind the deadbolt, so that ONLY when the deadbolt is locked, the door sensor closes the circuit
a motion sensor is placed such that the deadbolt cannot be locked by hand from the inside without the motion sensor getting triggered
Wiring:
the wired hidden door sensor opens and closes the 'Away' circuit
one of the wires coming from the hidden door sensor is also wired into the 'Occupancy' relay's output
the motion sensor is wired to a normal relay to control the opening of the 'Occupancy' relay
the wired hidden door sensor is also wired to a normal relay to control the closing of the 'Occupancy' relay
Logic:
When someone comes home, they unlock the door, opening the 'Away' circuit and closes the 'Occupancy' circuit
When someone stays home and locks the door, the 'Away' circuit is briefly closed, but then the motion sensor opens the 'Occupancy' circuit, which then opens the 'Away' circuit
When someone leaves home and unlocks the door, the 'Occupancy' circuit is closed
When they lock the door behind them, the 'Away' circuit is closed, the motion sensor is NOT triggered, and the 'Occupancy' circuit stays closed, allowing the 'Away' circuit to stay closed
If you have any home automation system that can lock the door remotely, simply have two 'Lock door' actions - one that locks the door when you're at home (and opens the 'Occupancy' circuit), and one that locks the door when you're away from home (and closes the 'Occupancy' circuit).
Any flaws or holes in this logic?
Equipment:
wired hidden door sensor
one motion sensor
two normal relays
an 'Occupancy' relay which has one control for opening it, and a separate control for closing it (where do I find one?)
Configuration:
the wired hidden door sensor is placed behind the deadbolt, so that ONLY when the deadbolt is locked, the door sensor closes the circuit
a motion sensor is placed such that the deadbolt cannot be locked by hand from the inside without the motion sensor getting triggered
Wiring:
the wired hidden door sensor opens and closes the 'Away' circuit
one of the wires coming from the hidden door sensor is also wired into the 'Occupancy' relay's output
the motion sensor is wired to a normal relay to control the opening of the 'Occupancy' relay
the wired hidden door sensor is also wired to a normal relay to control the closing of the 'Occupancy' relay
Logic:
When someone comes home, they unlock the door, opening the 'Away' circuit and closes the 'Occupancy' circuit
When someone stays home and locks the door, the 'Away' circuit is briefly closed, but then the motion sensor opens the 'Occupancy' circuit, which then opens the 'Away' circuit
When someone leaves home and unlocks the door, the 'Occupancy' circuit is closed
When they lock the door behind them, the 'Away' circuit is closed, the motion sensor is NOT triggered, and the 'Occupancy' circuit stays closed, allowing the 'Away' circuit to stay closed
If you have any home automation system that can lock the door remotely, simply have two 'Lock door' actions - one that locks the door when you're at home (and opens the 'Occupancy' circuit), and one that locks the door when you're away from home (and closes the 'Occupancy' circuit).
Any flaws or holes in this logic?
