WIRELESS SENSOR NETWORK BASED AUTOMATIC FIRE EXTINGUISHER

摘要

PURPOSE: A wireless sensor network based automatic fire extinguisher is provided to monitor a fire risk place, and automatically make an alarm and extinguish fire when detecting the fire in the place. CONSTITUTION: A sensor node measures the temperature, carbon-dioxide gas, an inflammable gas and the concentration of harmful gas and transmits the measurement results to a router through the wireless sensor network. The router reads out the signal of the sensor node and transmits the read signal to a fire monitoring state indicating device. The fire monitoring state indicating device takes a measure for the fire according to the signal of the sensor node from the router, and a fire extinguisher having an automatic valve automatically and manually adjusts the strength for the spray of fire extinguishing materials.