Title:
INDOOR FIRE DETECTION AND ALARM METHOD AND SYSTEM BASED ON WIRELESS NETWORK SIGNAL TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2017/117910
Kind Code:
A1
Abstract:
The present invention relates to the field of wireless information technology processing. Disclosed is an indoor fire detection and alarm system based on a wireless signal. Steps for realizing the system mainly comprise: a wireless receiving end receiving a wireless electromagnetic signal from a wireless transmitting end, evaluating CSI (channel state information), and adopting a data filtering technique (a Butterworth filter) to carry out denoising on data; using an abnormality detection algorithm (sequence abnormality) to recognize an abnormality of a change in channel state information; and adopting a random forest algorithm, selecting five feature extraction methods (such as standard deviation and an interquartile range), storing indoor fire signal information, and if a signal feature in an abnormal mode matches a stored signal feature, determining that an indoor fire has broken out, and then giving a fire alarm signal. The present invention has the following beneficial effects: an existing wireless network and a device are mainly used, no additional detection or sensing device needs to be installed in a room, no additional laying price is needed, the fire can be monitored in real time, and the universality thereof is extremely high.
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| WO/2010/038476 | TRANSMISSION INPUT CIRCUIT |
| JP3105331 | FIRE ALARM EQUIPMENT |
Inventors:
WU KAISHUN (CN)
ZHONG SHUXIN (CN)
WANG LU (CN)
ZHONG SHUXIN (CN)
WANG LU (CN)
Application Number:
PCT/CN2016/084192
Publication Date:
July 13, 2017
Filing Date:
May 31, 2016
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
International Classes:
G08B17/00; G08B25/10
Foreign References:
| CN103606248A | 2014-02-26 | |||
| CN104766427A | 2015-07-08 | |||
| CN104951757A | 2015-09-30 | |||
| CN103023589A | 2013-04-03 | |||
| CN104796204A | 2015-07-22 |
Attorney, Agent or Firm:
SHENZHEN KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
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