System and method for detecting fire hazard based on wireless multi-sensor information fusion

Abstract

The invention provides a system and a method for detecting a fire hazard based on wireless multi-sensor information fusion. The system comprises a sensor terminal node and an intelligent gateway, wherein the sensor terminal node establishes a data transmission network of a fire hazard monitoring field by using the ZigBee technology; the intelligent gateway is accessed into the Internet and a general packet radio service GPRS (general packet radio service) network based on an ARM11S3C6410 (Advanced RISC Machine 11S3C6410) chip; and a user can obtain the monitoring information while accessing to an embedded server. Once the fire hazard is detected, the alarm information is transmitted to a cell phone of the user through a GPRS module; a plurality of sensors of smoke, temperature, carbon monoxide CO gas and the like are utilized to sense the burning state of the fire; different trust degree functions are distributed according to that whether the fire hazard happens; and a D-S evidence theory is fused with three sensor information so as to judge the state of the fire hazard. With the adoption of the system and the method, the defect of wired scheme of a traditional fire hazard monitoring system is modified; and the system and the method can be used in families and industrial environments with wiring inconvenience and reduced cost widely.

Description

technical field [0001] The invention designs a fire detection system and method based on wireless multi-sensor information fusion, which is suitable for real-time remote monitoring of family fires. Background technique [0002] Fire is the most common disaster that endangers people's lives and properties. How to effectively monitor family fires and prevent disasters has become a safety issue that must be considered in family life. Traditional home fire monitoring equipment is only limited to the inside of the home. Once people leave the monitoring area, it is difficult to obtain monitoring information and take timely and effective measures to deal with dangerous situations. For this reason, the Internet network is used to connect the family fire monitoring equipment and the remote monitoring center to realize remote monitoring and expand the scope of monitoring, which is gradually replacing the traditional fire monitoring system. At present, the fire monitoring system based...

AI Technical Summary

Problems solved by technology

The single-parameter fire detector has a limited detection ability due to uneven response sensitivity to the characteristic signal. The detector can only be selected according to different places and the types of fires that may occur in the place. Once the improper selection will cause errors and missed reports

In addition, most of the data processing methods used in single-parameter fire detectors are threshold value comparison methods. This traditional fire detection is simple and easy to implement, but its environmental adaptability and anti-interference ability are poor

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