Method and system for fire detection, warning, positioning and extinguishing

Abstract

The invention relates to a method and a system for fire detection, warning, positioning and extinguishing. The system comprises a thermal infrared imager, an image processing system, a warning output system, a warning master, double-band image detectors, automatic fire monitors and a network switch. Each dual-band image detector is connected with one automatic fire monitor through a RS485 interface, forming an automatic linked fire monitor. The thermal infrared imager is connected to the input end of the image processing system through a data line; the first output end of the image processing system is connected to the input end of the warning output system through an RS232 interface; the output end of the warning output system is connected to the warning master through an RS485 bus; the second output end of the image processing system is connected with the network switch through an RJ45 interface; the automatic fire monitors are parallelly connected with the network switch through an RJ45 interface, so that the image processing system and the automatic linked fire monitors form a local network; the network switch is networked with a peripheral fire monitoring network through an RJ45 interface. The method and the system are widely applicable to the fields, such as large-scale petrochemical factories, large-scale outdoor ports and large-scale outdoor public places.

Description

technical field [0001] The invention relates to the technical field of fire monitoring and automatic fire extinguishing, in particular to a fire detection, alarm, positioning and extinguishing method and system suitable for automatic large outdoor spaces. Background technique [0002] Fire is one of the main disasters that most frequently and commonly threatens public safety and social development. Fire alarm, positioning and extinguishing systems are important equipment related to people's lives and property safety. At present, the fire water monitor is an important fire-fighting equipment for long-distance fire fighting. It usually cooperates with various fire detection equipment to form a large-space fire-extinguishing system. At present, outdoor fire-fighting water monitors are mainly manual-controlled, with poor positioning accuracy and long extinguishing time, posing major safety hazards. With the development of technology, the application of automatic fire water cann...

AI Technical Summary

Problems solved by technology

Infrared thermal imaging cameras are divided into two types: temperature measurement type and non-temperature measurement type. Among them, the temperature measurement type is more expensive, and needs to accurately input parameters such as the emissivity, distance, and ambient temperature of the object to be measured, and it is difficult to adapt to complex outdoor scene detection. Requirements; non-temperature-measuring thermal imagers can only output the difference in thermal radiation in the scene, and automatically map to 256-level grayscale or color output. When there are many thermal radiators in the environment, they cannot be distinguished, and there is a lot of interference, so they cannot be directly applied fire detection

Images