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Indoor fire detection and alarming method and system based on wireless network signal transmission

A wireless network signal and alarm system technology, applied in the direction of fire alarms, alarms, instruments, etc., can solve the problems of insufficient popularity and achieve the effect of great popularity

Active Publication Date: 2016-07-13
SHENZHEN UNIV
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Problems solved by technology

[0004] In order to overcome the lack of popularity of the above-mentioned equipment, the present invention provides a low-cost, high-precision method and system for indoor fire detection and alarm based on wireless signals

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  • Indoor fire detection and alarming method and system based on wireless network signal transmission
  • Indoor fire detection and alarming method and system based on wireless network signal transmission
  • Indoor fire detection and alarming method and system based on wireless network signal transmission

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Embodiment Construction

[0042] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0043] An indoor fire detection and alarm method based on wireless network signal transmission, the steps comprising:

[0044] S1. The wireless receiving end receives the wireless signal from the wireless transmitting end, evaluates CSI (channel state information), and uses data filtering technology (Butterworth filter) to denoise the data;

[0045] S2. Using an anomaly detection algorithm (sequence anomaly) to identify an anomaly in channel state information changes;

[0046] S3. Adopt random forest algorithm, select five kinds of methods of feature extraction (for example, standard deviation, interquartile range, etc.), the signal information of the fire situation in the room is realized storage, if abnormal mode signal feature is consistent with the signal feature of realizing stor...

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Abstract

The invention relates to the field of wireless information technology processing, and discloses an indoor fire detection and alarming system based on wireless signals. Steps for realizing the system mainly comprise: a wireless receiving end receives wireless electromagnetic signals from a wireless transmitting end, CSI (channel state information) is evaluated, and a data filtering technology (Butterworth filter) is adopted to carry out denoising processing on the data; an anomaly detection algorithm (sequence anomalies) is used for recognizing anomalies of channel state information changes; a random forest algorithm is adopted, five feature extraction methods (such as standard deviation and an interquartile range) are selected, indoor fire signal information is stored, and if signal features in the anomaly mode are matched with stored signal features, an indoor fire is judged to appear, and fire alarming signals are further given. The method and the system of the invention have the beneficial effects that the existing wireless network and the device are mainly used, no other detection or sensing device needs to be additionally arranged in the room, no additional laying price is needed, the fire can be monitored in real-time, and universality is extremely high.

Description

technical field [0001] The invention relates to wireless information processing technology, in particular to an indoor fire detection and alarm system and method based on wireless signals. Background technique [0002] Although fireworks and firecrackers have been expressly banned, some citizens still play with firecrackers and fireworks in their own communities, which will cause potential safety hazards. If all the family members are traveling for the holidays, and a flame suddenly flies in at this time, the consequences will be unimaginable. Every year on this day of national celebration, such tragedies happen frequently. Another example is the Tianjin explosion that shocked the world. If there was just a small flame in the room, it could be discovered in time and effectively controlled, and there would be no subsequent explosions and casualties. Therefore, we urgently want to find a kind of method that can be convenient, effective and needn't buy additional equipment, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/00G08B25/10
CPCG08B17/00G08B25/10G08B17/10
Inventor 伍楷舜钟舒馨王璐
Owner SHENZHEN UNIV
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