Monitored voltage inverter for security system

• US 20070210915A1
• Filed: 03/09/2006
• Published: 09/13/2007
• Est. Priority Date: 03/09/2006
• Status: Active Grant

• Current Assignee: Ademco Inc. (Resideo Technologies, Inc.)
• Original Assignee: Honeywell International Inc.
• Inventors: Addy, Kenneth
• Granted Patent: US 7,446,654 B2
• Time in Patent Office: Days
• US Class Current: 340/531
• CPC Class Codes: G08B 25/08 using communication transmission lines G08B13/19658, G08B21/0286, G08B25/016 take precedence
• CPC Class Codes: G08B 29/181 due to failing power supply
• CPC Class Codes: H02J 9/062 for AC powered loads

Abstract

A monitored voltage inverter for a security system is disclosed. A voltage inverter is coupled to the power supply of the control panel which can provide AC power to the network hardware devices. The voltage inverter converts the DC voltage of a back-up power supply to household or commercial AC current. In a preferred embodiment, the voltage inverter is mounted on the printed circuit board and is coupled to the network hardware devices.

Claims

1. A security system comprising:

a control panel;

sensors electrically coupled to said control panel;

a network hardware device coupled to said control panel for transmitting and receiving data;

a power supply for powering said control panel, said power supply coupled to an AC power source and a back-up power source; and

a voltage inverter in series with said power supply, said voltage inverter configured for powering said network hardware device.

2. The security system of claim 1 wherein said back-up power source is a battery.

3. The security system of claim 2 wherein said battery is a lead-acid battery.

4. The security system of claim 1 wherein said back-up power source is a fuel cell.

5. The security system of claim 1 wherein said sensor is a motion sensor.

6. The security system of claim 1 wherein said sensor is a radio frequency sensor.

7. The security system of claim 1 wherein said sensor is an intrusion sensor.

8. The security system of claim 1 wherein said network hardware device is a hub.

9. The security system of claim 1 wherein said network hardware device is a switch.

10. The security system of claim 1 wherein said network hardware device is a router.

11. The security system of claim 1 wherein said network hardware device is a modem.

12. The security system of claim 1, further comprising:

a back-up communication device coupled to said control panel, wherein said voltage inverter is configured for powering said back-up communication device.

13. The security system of claim 1 wherein said back-up communication device is a GSM dialer.

14. The security system of claim 1 wherein said back-up communication device is a telephone modem.

15. A method of providing power to a security system, said security system including a control panel;

sensors electrically coupled to said control panel;

a network hardware device coupled to said control panel for transmitting and receiving data;

a power supply for powering said control panel, said power supply coupled to an AC power source and a back-up power source; and

a voltage inverter in series with said power supply, said method comprising the steps of;

at the voltage inverter, monitoring said AC power source;

providing AC power to said control panel and to said network hardware device if said AC power source is operating; and

if said AC power source is interrupted, converting DC power from said back-up power source to AC power and providing said AC power to said network hardware device.

16. The method of claim 15 wherein said back-up power source is a battery.

17. The method of claim 16 wherein said battery is a lead-acid battery.

18. The method of claim 15 wherein said back-up power source is a fuel cell.

19. The method of claim 15 wherein said network hardware device is a hub.

20. The method of claim 15 wherein said network hardware device is a switch.

21. The method of claim 15 wherein said network hardware device is a router.