Fire-alarm control panel having power frequency carrier

• US 7,456,728 B2
• Filed: 07/05/2006
• Issued: 11/25/2008
• Est. Priority Date: 08/31/2005
• Status: Expired due to Fees

• Current Assignee: Hansder Engineering Co., Ltd.
• Original Assignee: Hansder Engineering Co., Ltd.
• Inventors: Huang, Yuan-Yu
• Primary Examiner(s): Swarthout; Brent
• Application Number:
  US11/480,437
• Publication Number:
  US 20070046440A1
• Time in Patent Office: 874 Days
• Field of Search: 340/332, 340/333, 340/506, 340/525, 340/532.17, 340/539.16, 340/310.11, 340/310.16
• US Class Current: 340/286.05
• CPC Class Codes: G08B 17/10 Actuation by presence of smoke or gases , e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence

Abstract

A fire-alarm control panel uses a transforming unit together with indoor power line for a fire alarm; and a signal for the fire alarm is transferred to another fire-alarm control panel in another place.

Claims

1. A fire-alarm control panel having power frequency carrier, comprising:

a main signal control panel comprising a signal T/R (transferring/receiving) unit and a transforming unit, said transforming unit comprising a signal I/O (input/output) module, a single-chip control module, a power carrier module and a power I/O module, said signal I/O module connecting to said signal T/R unit,

wherein said power carrier module is configured to modulate an alarm signal and then transfer said alarm signal to said power I/O module, said power I/O module being configured to transfer said alarm signal to another, remotely located fire-alarm control panel;

at least one detecting unit, said detecting unit connecting to said signal T/R unit to transfer detected signals to said signal T/R unit;

at least one warning unit, said warning unit connecting to said signal T/R unit, said warning unit showing signals received from said signal T/R unit;

an indoor power unit connecting to said power I/O module; and

an emergency power unit connecting to said power I/O module.

2. The fire-alarm control panel according to claim 1, wherein said single-chip control module comprises an input unit, an output unit, a control unit, a communication interface and a relay.

3. The fire-alarm control panel according to claim 2, wherein said control unit is a 8051 single chip.

4. The fire-alarm control panel according to claim 2, wherein said control unit comprises a working frequency of 16 megahertz.

5. The fire-alarm control panel according to claim 1, wherein said communication interface is an RS232 interface.

6. The fire-alarm control panel according to claim 1, wherein said power carrier module comprises a transferring rate of 1200 BPS (bit per second).

7. The fire-alarm control panel according to claim 1, wherein said detecting unit connecting to said main signal control panel comprises at least one detector and at least one manual alarm unit.

8. The fire-alarm control panel according to claim 1, wherein said detecting unit further comprises a repeater located between said detector and said main signal control panel.

9. The fire-alarm control panel according to claim 1, wherein said warning unit comprises a main audio device, a local audio device and an alarming light.

10. The fire-alarm control panel according to claim 1, wherein said indoor power unit comprises a plug for indoor power.