Alarm system and method for fire and combustible gas

Abstract

The invention discloses an alarm system and an alarm method for fire and combustible gas. The alarm system and the alarm method for the fire and the combustible gas are characterized in that: the alarm system comprises a signal detector, an alarm controller, a data manager and an early warning monitor, wherein the signal detector is arranged in an area to be monitored, is used for detecting signals of smoke, temperature or combustible gas, and transmitting the signals to the alarm controller; the alarm controller is used for acquiring the signals of smoke, temperature or combustible gas detected by the signal detector in real time and transmitting the detector data to the data manager; the data manager is used for recording and storing background values in the early stage of operation of the detector and the detected data in the operating process of the detector, performing real-time analysis on historical data in the operating process of the detector to perform early warning or self diagnosis of the detector or self adjustment of an alarm threshold value, and outputting analysis results to the early warning monitor; and the early warning monitor is used for displaying the early warning analysis results output by the data manager.

Description

technical field [0001] The invention relates to an early warning device, in particular to an intelligent fire and combustible gas alarm system and method with advanced early warning functions. Background technique [0002] At present, the measurement and alarm system for fire, combustible gas, etc. is generally composed of detectors and a central alarm control device. The central alarm control device collects the status signals of the detectors through the split-line system or the bus system, and judges the currently collected status signals. And alarm, and give the measurement results. [0003] The detector converts the detected physical quantity signal (such as: smoke, temperature, combustible gas concentration, etc.) into an electrical signal. At present, the threshold-threshold alarm method is generally adopted. The measured signal is considered to be in a normal state when it is below the threshold threshold. Only when the monitored signal exceeds the preset threshold,...

AI Technical Summary

Problems solved by technology

However, for a building of tens of thousands or hundreds of thousands of square meters, it takes a lot of time and effort

According to professional testing data, there are a certain number of products that exceed the alarm threshold by several times or even dozens of times after the product has been running for a period of time without alarming, which is a huge safety hazard.

The current alarm system only collects the current state of the detector, and uses the current state to judge whether to issue an alarm, but cannot combine the historical operating data of the detector, which may cause false alarms

Moreover, it cannot be judged in time whether the detector is in normal operation, so that the physical signal of the monitored environment is far beyond the dangerous value and cannot be found.

[0005] In summary, there are three deficiencies in the prior art: one is that when the detector signal is greater than the background and lower than the alarm threshold, the monitored object is slightly abnormal, but it is not easy to find; the other is that the system is based on the current value Judging whether to call the police or not, instead of comprehensively judging with the historical data of the detector

The third is that it cannot automatically judge whether the detector is working normally, whether its output value is credible, and whether it needs maintenance and maintenance.

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