Door sensor
An apparatus includes a housing fixed adjacent to a door having a hinge, a rotating arm rotatable about the housing and biased toward the door, and a transmitter electronically coupled to the rotating arm, wherein the transmitter broadcasts a position of the door.
1. A position sensor for a door hinge, comprising:
a body having a catch attachable to the hinge with a hinge pin;
an arm rotatable about an axis of the body and biased toward the door, wherein the axis of the body is substantially parallel to the hinge;
a transmitter electronically coupled to the arm that broadcasts a position of the door;
an enrollment switch attached to the body and electrically coupled to the transmitter;
wherein the arm moves with the door and sends a position signal to the transmitter.
2. The position sensor of claim 1 , further comprising a receiver to receive a status signal that is electronically coupled to the transmitter to send the status signal and the position signal.
3. The position sensor of claim 1 , wherein the transmitter is a transceiver that receives a status signal and transmits the status signal and the position signal.
4. The position sensor of claim 1 , further comprising a battery cavity in the body to provide power to the position sensor.
5. The position sensor of claim 1 , wherein the transmitter is a speaker that creates an audible sound.
6. The position sensor of claim 1 , wherein the catch is radially fixed to the body.
7. A transmission node for communicating a position of a door having a hinge, comprising:
a housing having a connective arm for fixing the node to the hinge;
a rotatable arm in contact with the housing and the door that rotates about the housing;
a transmitter electrically coupled to the rotatable arm that broadcasts the position of the door;
an enrollment switch attached to the housing and electrically coupled to the transmitter.
8. The transmission node of claim 7 , wherein the housing is substantially parallel to the hinge.
9. The transmission node of claim 7 , wherein the transmitter is a transceiver that receives a status signal and transmits the received signal and the position of the door.
10. The transmission node of claim 7 , further comprising a receiver that receives a status signal and is electronically coupled to the transmitter to broadcast the status signal.
11. The transmission node of claim 7 , wherein the rotatable arm is a plunger in contact with the housing and the door that moves with the door.
12. The transmission node of claim 7 , wherein the transmitter is a speaker that makes an audible sound.
13. The transmission node of claim 7 , wherein the connective arm is radially fixed to the housing.
14. An apparatus, comprising;
a housing fixed adjacent to a door having a hinge;
a connective arm for fixing the apparatus to the hinge;
a rotating arm rotatable about the housing and biased toward the door;
a transmitter electronically coupled to the rotating arm, wherein the transmitter broadcasts a position of the door;
an enrollment switch attached to the housing and electrically coupled to the transmitter.
15. The apparatus of claim 14 , wherein the transmitter is a sound generating device that generates a noise to indicate the position of the door.
16. The apparatus of claim 14 , further comprising a receiver that receives a status signal and is electronically coupled to the transmitter to broadcast the status signal.
17. The apparatus of claim 14 , wherein the transmitter is a transceiver that receives a status signal and broadcasts the status signal and the position of the door.