Abstract
We propose a system for improving gas safety management through the use of wireless communication modules and intelligent gas safety appliances. Our system configuration consists of an automatic extinguishing system, detectors, a wall-pad, and a microcomputer controlled micom gas meter to monitor gas flow and pressure as well as the occurrence of earthquakes. The automatic fire-extinguishing system checks for both combustible gaseous leaks and monitors the environmental temperature, while the detector array measures smoke and CO gas concentrations. Depending on detected conditions, the micom gas meter cuts off an inner valve and generates a warning, the automatic fire-extinguishing system cuts off an external valve and sprays extinguishing materials, or the sensors generate signals and take further action when smoke or CO is detected. Information on intelligent measures taken by the gas safety appliances and sensors is transmitted to the wall-pad, which in turn relays this as real time data to a server that can be monitored via an external network (BcN) connection to a web or mobile application for the management of gas safety. To validate this smart-home gas management system, we field-tested its suitability for use in Korean apartments under several scenarios.
Highlights
To ensure occupant comfort and safety, modern, high-end houses and apartments built in Korea are increasingly being equipped with sensor-based devices to monitor and regulate gas, electricity, and water facilities [1], a trend that will surely continue to produce improved monitoring systems
Several gas safety management systems incorporating intelligent multifunction gas meters based on ZigBee network technology, automatic gas leak cutoffs, and smoke, methane, and temperature detectors have been proposed by the authors [4], who, in conjunction with other researchers, pioneered in the development of the micom gas meter— an intelligent microcomputer controlled gas meter—with a built-in cutoff valve and sensors for detecting flow, pressure, and seismic events
These modules are used in our system both as wall pad sink nodes and as sensor nodes for the micom gas meters, automatic fire-extinguishing system— which serves as a router—and the smoke and carbon monoxide (CO) detector
Summary
To ensure occupant comfort and safety, modern, high-end houses and apartments built in Korea are increasingly being equipped with sensor-based devices to monitor and regulate gas, electricity, and water facilities [1], a trend that will surely continue to produce improved monitoring systems. Several gas safety management systems incorporating intelligent multifunction gas meters based on ZigBee network technology, automatic gas leak cutoffs, and smoke, methane, and temperature detectors have been proposed by the authors [4], who, in conjunction with other researchers, pioneered in the development of the micom gas meter— an intelligent microcomputer controlled gas meter—with a built-in cutoff valve and sensors for detecting flow, pressure, and seismic events. We designed a new gas safety management system (GSMS) based on a JN5139 ZigBee wireless networking solution and tested it under various scenarios. Deliver safety and risk signals to a wall pad that functions as a ZigBee network gateway [9], and if an abnormal state occurs at each sensor node, the system takes preventative safety measures and informs safety managers and users that a risk situation has occurred. The embedding ability of this system into the “internet of things” and its connectivity to smart device networks in homes and other buildings were demonstrated through field testing
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