System and method for warning a fire and flammable gas

• US 8,957,782 B2
• Filed: 06/21/2010
• Issued: 02/17/2015
• Est. Priority Date: 11/10/2009
• Status: Active Grant

• Current Assignee: Tianjin Puhai New Technology Co., Ltd.
• Original Assignee: Tianjin Puhai New Technology Co., Ltd.
• Inventors: Yu, Lezhong, Niu, Jun, Sun, Hongyun
• Primary Examiner(s): Lau, Hoi
• Application Number:
  US13/508,808
• Publication Number:
  US 20120293334A1
• Time in Patent Office: 1,702 Days
• Field of Search: 340/632, 340/506, 340/628, 340/521, 340/539.22, 340/584, 340/540, 340/577
• US Class Current: 340/632
• CPC Class Codes: G08B 17/00 Fire alarms; Alarms responsive to explosion
• 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 21/16 Combustible gas alarms
• CPC Class Codes: G08B 29/26 by updating and storing reference thresholds

Abstract

A fire and flammable gas system comprises a signal detector installed in a detection area for detecting flue gas, temperature or flammable gas signal; an alarm controller for real time collecting flue gas, temperature or flammable gas signal detected by the signal detector; a data manager for recording and storing an initial background value of the detector and detection data of the detector during running process, and analyzing the historical data of the detector during running process in real time so as to carry out early-warning in advance or detector self-diagnosis or alarm threshold adjusting; and an early-warning monitor for displaying early-warning analysis result output by the data manager on the monitor. A fire and flammable gas method is also provided.

Claims

1. A fire and flammable gas pre-warning system, comprising:

a signal detector installed in a monitor zone for detecting smoke, temperature, or flammable gas signals, and then transmitting the signals to a warning controller,

a warning controller for collecting in real time the smoke, temperature, or flammable gas signals from the signal detector and transmitting the signal detector data to a data manager,

a data manager, and

a pre-warning monitor for showing pre-warning analyses result from the data manager,

wherein the data manager includes a system set-up module for setting up address and type of the signal detector, a memory module for recording and memorizing a background value in original operation and data during operation of the signal detector, and a monitor managing module for monitoring in real time data from the signal detector during operation and outputting pre-warning messages in advance, signal detector self-diagnostic messages, and warning threshold value self-regulation messages to the pre-warning monitor, the monitor managing module including an advanced pre-warning unit for analyzing operation data of each signal detector, generating in advance the pre-warning messages when current operation data of the signal detector duration pre-set time is higher than a current background value and lower than a warning threshold value.

2. The pre-warning system of claim 1, wherein the monitor managing module further includes:

a detector self-diagnostic unit for analyzing the background value change of the signal detector by analyzing history operation data in combination with original-operation data of each signal detector and sending pre-warning message and cues that the signal detector needs to be maintained or checked.

3. The pre-warning system of claim 2, wherein the monitor managing module further includes a detector operation trend chart generation unit for data manager inquiring history operation data of the signal detector when there is an alarm in the system, and then generating an operation trend history curve diagram of the signal detector based on the data.

4. The pre-warning system of claim 1, wherein the signal detector includes a fire signal detector and/or a flammable gas signal detector, the fire signal detector is a smoke sensitive detector, a temperature sensitive detector, or a temperature-smoke sensitive detector, and the flammable gas signal detector is a methane detector, a propane detector, or a CO detector.

5. The pre-warning system of claim 1, wherein the warning controller includes a fire warning controller and/or a flammable gas warning controller.

6. The pre-warning system of claim 1, wherein the warning controller collects in real time the fire signal or the flammable gas signal in the monitor zone by bus-communication or distributed-communication.

13. The pre-warning system of claim 2, wherein the monitor managing module further includes a warning threshold value self-regulation unit for analyzing in real time background value change of signal detectors by analyzing history data in combination with original-operation data of each signal detector and self-regulating the warning threshold value incorporate with background value change when the change is in a rational range.

7. A fire and flammable gas pre-warning method utilizing a signal detector, a warning controller, a data manager, and a pre-warning monitor, the method comprising:

the signal detector detecting smoke, temperature, or flammable gas signal in a monitor zone and then transmitting the signal to the warning controller,

the warning controller collecting in real time the smoke signal, temperature signal, or flammable gas signal and then transmitting detecting data to the data manager,

the data manager setting up address and type of each signal detector, recording and memorizing background value of the signal detector in original-operation and detecting data of the signal detector during operation, real-time monitoring and analyzing history data of the signal detector during operation for advanced pre-warning, detector self-diagnostic, and warning threshold value self-regulation, and then out-putting pre-warning message, detector self-diagnostic message, and warning threshold value self-regulation message to the pre-warning monitor, and

the pre-warning monitor showing the output from the data manager via a monitor.

8. The pre-warning method of claim 7, wherein the recording and memorizing background value of the signal detector in original-operation and detecting data of the signal detector during operation is accomplished by:

analyzing operation data of each signal detector,

sending pre-warning message in advance when current operation data duration pre-set time quantum of the signal detector is higher than a current background value but lower than a warning threshold value,

real-time analyzing background value change of each signal detector by analyzing history operation data in combination with detecting data in original-operation of the signal detector, sending pre-warning message when the current background value of the signal detector in the pre-set time quantum is deviant long time compared to the original-operation background value which is recorded in the system, and then cuing the signal detectors need to be maintained and checked, and

analyzing in real time background change of each signal detector by analyzing history data in combination with original-operation data of the signal detector, warning threshold value self-regulating automatically incorporating with background value change when the change is in a rational range.

9. The pre-warning method of claim 8, further comprising generating a signal detector operation trend chart, wherein when there is an alarm in the warning system, the data manager inquires history data of the warning detector, and then generates an operation trend history curve diagram of the signal detector based on this data.

10. The pre-warning method of claim 7, wherein the signal detector includes a fire signal detector and/or a flammable gas signal detector, the fire signal detectors are smoke sensitive detector, temperature sensitive detector, or smoke-temperature sensitive detector, and the flammable gas detectors are methane detector, propane detector, or CO detector.

11. The pre-warning method of claim 7, wherein the warning controller includes a fire warning controller and/or a flammable gas warning controller.

12. The pre-warning method of claim 7, wherein the warning controller collects in real time fire signal or flammable gas signal in the monitor zone by bus-communication or distributed-communication.