System and method of controlling indicators of a property monitoring system

• US 8,416,096 B2
• Filed: 04/02/2009
• Issued: 04/09/2013
• Est. Priority Date: 04/02/2009
• Status: Active Grant

• Current Assignee: Kidde Fire Protection LLC
• Original Assignee: UTC Fire & Security Americas Corporation, Inc. (Carrier Global Corporation)
• Inventors: Qiu, Rongbin, Shu, Baohua, Luo, Xiao, Becker, Donald Edward, Qin, Laigui, Huang, Zhenhua
• Primary Examiner(s): BLOUNT, ERIC
• Application Number:
  US12/417,286
• Publication Number:
  US 20100253531A1
• Time in Patent Office: 1,468 Days
• Field of Search: 340/691.6, 340/691.3
• US Class Current: 340/691.3
• CPC Class Codes: G08B 25/04 using a single signalling line, e.g. in a closed loop
• CPC Class Codes: G08B 5/36 using visible light sources
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/18 via data-bus transmission

Abstract

Property monitoring system and method of operating. Two signal lines are used to couple a master controller in series with a plurality of indicators. Each indicator has a visual display. Each visual display has a plurality of LEDs, or other type of lighting device. The master controller is configured to generate a multi-bit digital command message to be transmitted serially to the plurality of indicators over the second signal line upon receipt of an alarm condition message. Each command message has a predetermined time delay for activating each of the indicators, or a component thereof, so that all indicators activate in unison.

Claims

1. A property monitoring system, comprising:

a first signal line, wherein the first signal line is a clock signal line;

a second signal line, wherein the second signal line is a data signal line;

a plurality of indicators coupled, in series, to each of the first signal line and the second signal line;

a visual display of each of the plurality of indicators; and

a microcontroller in each of the plurality of indicators that is configured to communicate with the visual display; and

a master controller also coupled, in series, to each of the first signal line and the second signal line, wherein the master controller is configured to generate a multi-bit digital command message to be transmitted serially to the plurality of indicators over the second signal line,

wherein each command message has a different predetermined time delay that is unique to each indicator of the plurality of indicators and that is configured to cause the plurality of indicators to activate in unison.

2. The property monitoring system of claim 1, wherein the master controller and the plurality of indicators are each components of a control panel.

3. The property monitoring system of claim 2, wherein each indicator is removably coupled with said control panel.

4. The property monitoring system of claim 1, wherein the visual display comprises a plurality of LEDS.

5. The property monitoring system of claim 4, wherein the plurality of LEDs is arranged in the visual display in groups, each group having a different color, wherein each color indicates a different alarm condition.

6. A method, comprising:

receiving an alarm condition message from a remote unit coupled with a control panel of a property monitoring system; and

sending at least two command messages to multiple indicators coupled with the control panel from a master controller based on the alarm condition message,

wherein;

each command message of the at least two command messages comprises at least a synchronization field having therein a predetermined time delay; and

an indicator comprising;

a visual display; and

a microcontroller configured to receive a command message of the at least two command messages and to control the visual display based on the command message.

7. The method of claim 6, wherein the predetermined time delay is different for each command message.

8. The method of claim 6, wherein the visual display comprises a plurality of LEDs.

9. The method of claim 8, wherein the plurality of LEDs is arranged in groups, each group having a different color LEDs, and each color indicating a different alarm condition.

10. A control panel configured for use in a property monitoring system, the control panel comprising:

a pair of signal lines;

a master controller coupled, in series, with a plurality of indicators via the pair of signal lines,

wherein the master controller is configured to communicate alarm conditions received from one or more remote units,

wherein each indicator of the plurality of indicators has a microcontroller and a visual display that is configured to alert of the alarm conditions,

wherein the visual display is configured to display information received from one or more drivers communicating with the microcontroller,

wherein the microcontroller is configured to receive a command message from the master controller, the command message having a time delay therein unique to the microcontroller and its corresponding indicator.

11. The control panel of claim 10, wherein an indicator of the plurality of indicators is removably coupled with the control panel.

12. The method of claim 10, wherein the visual display comprises a plurality of LEDs.

13. The method of claim 12, wherein the plurality of LEDs is arranged in groups, each group having a different color LEDs, and each color indicating a different alarm condition.

14. An indicator for use in a property monitoring system, the indicator comprising:

A microcontroller, the microcontroller having a timer that is configured to control timed operation of the indicator;

a visual display configured to alert of an alarm condition,

wherein the visual display is configured to respond to the timer, when the timer receives a time delay unique to the indicator; and

at least one driver operated by said microcontroller for operating a plurality of LEDs in said visual display in accordance with the time delay unique to the indicator.

15. The indicator of claim 14, wherein the plurality of LEDs is arranged in groups, each group having a different color LEDs, and each color indicating a different alarm condition.