The main objective of this project is a cost effective
RF based wireless supervising system for safeguard of underground mine workers.
This scheme uses intelligent helmets as ultra-low-power nodes of wireless
sensor network. We use RF wireless technology to build wireless sensor
networks, realized real-time surveillance with early-warning intelligence on
fire, temperature & humidity in working area, and used programmed alarm
sound communication to reduce potential safety problems. RF based wireless networks
and sensors are recently investigated due to their remote environment
monitoring capabilities. Such a network can easily collect sensor data and
transmit them in quick response time. Combining these advantages we design a
new smart helmet, which enables the helmet as a mobile node of RF wireless
sensor network, gathering parameters from working area timely and quickly. It
is convenient for central