AUXILIARY POWER SUPPLY APPARATUS AND METHOD

1 . An auxiliary power supply system comprising:

an auxiliary power supply;

a motion detector to detect a motion of an elevator car powered via a primary power supply; and

a control board to activate the auxiliary power supply if the primary power supply fails or is disrupted;

wherein the control board controls movement of an elevator car based on a signal from the motion detector if the primary supply fails or is disrupted.

2 . The auxiliary power supply system of claim 1 , further comprising:

a signal generated by the auxiliary power system and transmitted to the control board if the primary power supply fails or is disrupted and the auxiliary power supply is activated.

3 . The auxiliary power supply system of claim 1 , further comprising:

an auxiliary power supply safety shut-off switch to enable complete power shut-off to the elevator car during maintenance thereof.

4 . The auxiliary power supply system of claim 1 , further comprising:

an auxiliary supply by-pass switch to enable a user to by-pass the auxiliary power supply system.

5 . A method of controlling an elevator system, the method comprising:

providing a first power source as a primary power supply;

providing a second power source as a second power supply;

powering an elevator car via the second power source if the first power source fails or is disrupted;

determining motion via a motion detector;

outputting a signal via the motion detector;

moving the elevator car to a predetermined location based on the signal and via the second power source if the first power source fails or is disrupted; and

opening one or more elevator car doors via the second power source when the elevator car reaches the predetermined location if the first power source fails or is disrupted.

6 . The method of claim 5 , further comprising:

transferring power to the elevator car from the first power source to the second power source without interruption of power if the first power source fails or is disrupted.

7 . The method of claim 5 , further comprising:

determining whether an actual charge of the battery is sufficient to move the elevator car to the predetermined location and open the one or more doors.

8 . The method of claim 5 , further comprising:

calculating a minimum power amount to move the elevator car to the predetermined location and open the one or more doors; and

outputting the minimum power amount.

9 . The method of claim 5 , wherein the predetermined location is an optimal floor in an upward direction or downward direction.

10 . The method of claim 9 , wherein the optimal floor is based on proximity to the predetermined location, proximity to the nearest floor, type of load, or priority of load delivery.

11 . The method of claim 5 , wherein the predetermined location is a nearest floor in a same direction that the elevator car was moving when failure or disruption of the first power source occurred.

12 . The method of claim 5 , wherein the predetermined location is an original destination that the elevator car was moving to when failure or disruption of the first power source occurred.

13 . The method of claim 5 , further comprising:

continuously monitoring the second power supply during use of the first power supply to ensure the second power supply contains a predetermined amount of power.

14 . The method of claim 5 , wherein the first power supply is AC power and the second power supply is DC power.

15 . The method of claim 5 , further comprising:

monitoring a charge of the second power supply; and

charging the second power supply if the charge is below a predetermined charge level.

16 . The method of claim 15 , wherein the charging of the second power supply is automatically executed.

17 . The method of claim 5 , wherein the predetermined charge level is calculated based on elevator car quantity, elevator car capacity, elevator shaft size, or distance between floors.

18 . Apparatus for controlling movement of an elevator car in the event of a power loss or disruption, comprising:

a power supply;

a motion detector; and

a control device to move the elevator car to the next nearest floor in the event of the power loss or disruption.