CLIAMS:WE CLAIM
1. A method to provide emergency lighting, the method comprising:
detecting, by a switching controller of an emergency lighting system, absence of electric current in the emergency lighting system;
determining, by the switching controller, state of a main power switch connecting the emergency lighting system with a main power supply; and
switching, by the switching controller, to backup-up power to provide emergency lighting based on the determination of the state of the main power switch.
2. The method of claim 1, wherein the determination of the state of the main power switch comprises detecting by the switching controller a control signal in the emergency lighting system.
3. The method of claim 2, wherein the control signal passes through a bypassing element connected in parallel to a main power supply.
4. The method of claim 3, wherein the bypassing element has high resistance as compared to the emergency lighting system, but allows the control signal to pass through.
5. The method of claim 1, wherein the main power switch controlled by a user to control the emergency lighting system.

6. An emergency lighting system, the system comprising:
a signal generator to generate a control signal;
a bypassing element to pass the control signal in the emergency lighting system.; and
a switching controller linked to the switching unit to:
detect absence of electric current in the emergency lighting system;
determine state of a main power switch connecting the emergency lighting system with a main power supply; and
switch to backup-up power to provide the emergency lighting based on the determination of the state of the main power switch.
7. The emergency lighting system of claim 6, wherein the determination of the state of the main power switch comprises detecting by the switching controller a control signal in the emergency lighting system.
8. The emergency lighting system of claim 7, wherein the control signal passes through a bypassing element connected in parallel to a main power supply.
9. The emergency lighting system of claim 8, wherein the bypassing element has high resistance as compared to the emergency lighting system, but allows the control signal to pass through .
10. The emergency lighting system of claim 5, wherein the main power switch controlled by a user to control the emergency lighting system.

Dated this 21st day of July, 2015

Naveen Suriya
Of K&S Partners
Agent for the Applicant
,TagSPECI:TECHNICAL FIELD
This disclosure relates generally to emergency lighting systems, and more particularly to an emergency lighting system with smart switching.