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Fire safety monitoring method and system based on regional alarm model, and cloud platform

A fire alarm system and regional technology, applied in the direction of alarms, transmission systems, and fire alarms that rely on smoke/gas effects, can solve the problem of high fire alarm false alarm rate, reduce false alarm rate, and large-scale city-level fire protection. Remote monitoring lacks technical support and other issues to achieve the effect of improving alarm efficiency, reducing false alarm rate, and improving fire prevention and control capabilities

Active Publication Date: 2020-06-19
HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the false alarm rate of fire alarms in the prior art is high, and the large-scale city-level remote monitoring of fire protection lacks technical support. A method for regional fire alarms is provided, which utilizes the correlation of multiple single-type fire detector signals Carry out fire alarms to reduce the false alarm rate and provide technical support for large-scale city-level fire remote monitoring systems

Method used

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  • Fire safety monitoring method and system based on regional alarm model, and cloud platform
  • Fire safety monitoring method and system based on regional alarm model, and cloud platform
  • Fire safety monitoring method and system based on regional alarm model, and cloud platform

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Embodiment 1

[0046] Keyword explanation:

[0047] Field calculation: the general term for the fire prediction and judgment process of detection signals.

[0048] Trigger Threshold: The minimum signal value calculated by the detector detection signal trigger field. (for analog detectors)

[0049] Alarm Threshold: The minimum signal value for the detector detection signal to trigger an alarm response. (for digital detectors)

[0050] Fire alarm threshold: the minimum probability value for judging a true fire alarm in the fire alarm judgment.

[0051] Architectural structural elements: such as figure 1As shown, if the building is regarded as a structure composed of different functional spaces, then different functional spaces have certain specific layouts due to their specific functions, such as corridors and stairwells belonging to narrow and long connected structures, rooms and equipment rooms belonging to Closed or semi-closed chamber structure. The spread of fire smoke in these arch...

Embodiment 2

[0110] Corresponding to Embodiment 1, this embodiment provides a regional fire alarm system, including the following steps:

[0111] System trigger module, calculating the trigger field of a single detector A in the building;

[0112] The positioning module locates the micro-element of the building structure where the single detector A is located, and identifies adjacent detectors;

[0113] The building structure micro-element determination module selects the building structure micro-element signal parameter unit where the single detector A is located, thereby determining the fire alarm threshold parameter corresponding to the building structure micro-element; at the same time, the building structure micro-element signal parameter unit obtains the detection The detection signals of the sensor and its adjacent detectors are processed to obtain signal characteristics;

[0114] Among them, the signal characteristic model is the similar signal relationship value between the single ...

Embodiment 3

[0167] like Image 6 As shown, corresponding to Embodiment 1 and Embodiment 2, this embodiment provides a security cloud platform, and the fire safety cloud platform is divided into three layers, the first layer is aimed at social units, the second layer is the regional center, and the third layer The layer is the total center.

[0168] level one

[0169] The first layer can be called the front-end perception layer. Taking the social unit as a whole, a fire alarm system is established to analyze and process the switch / analog signal of a single fire detector. When the signal reaches the trigger threshold / alarm threshold, the trigger field Computing to realize the joint application of edge computing and regional fire alarm model.

[0170] Second floor

[0171] The second layer of the regional center is mainly aimed at the city, and connects the signal of the fire alarm system to the regional center based on the region. The regional center stores the building BIM models of th...

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Abstract

The invention provides a regional fire alarm method. The method comprises the following steps: S01, calculating a trigger field of a certain single detector A in a building; s02, positioning a building structure infinitesimal element where the single detector A is located, and recognizing an adjacent detector; s03, selecting a building structure infinitesimal signal parameter unit where the singledetector A is located, obtaining detection signals of the detector and adjacent detectors of the detector, and obtaining signal characteristics through processing; s04, inputting the signal characteristics into a fire alarm model, and judging whether there is a fire; and S05, outputting a true alarm signal or a false alarm signal according to judgment. For different building structure infinitesimal elements, fire smoke spreading rules are different, and therefore the correlations of the adjacent smoke sensing signals are different. The correlation of the adjacent smoke sensing signals causedby the fire smoke spreading rule is used as a fire alarm judgment standard, then the standard is used for fire alarm, the false alarm rate can be reduced to a great extent, and the alarm efficiency isimproved.

Description

technical field [0001] The invention relates to the technical field of fire early warning, in particular to a fire safety monitoring method, system and cloud platform. Background technique [0002] The urban fire remote monitoring system is a combination of the most advanced fire alarm technology, information communication and network technology, computer control technology and multimedia display technology, through the public (unit) telephone network, local area / wide area network, wireless GPRS / CDMA network, etc. It collects all kinds of alarm signals, fault signals, and image information on the monitoring site in real time, and transmits the above information to the equipment in the remote alarm detection center in a timely and reliable manner. In the center, the alarm information display of networked units, electronic map operation, data query and retrieval, remote audio and video transmission, emergency plan management, short message ordering and sending, etc. can be com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/10G08B25/00H04L29/08
CPCG08B17/10G08B25/00H04L67/10
Inventor 袁宏永关劲夫王静舞于淼淼疏学明付明
Owner HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV
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