Design of RF non-magnetic heat meter featuring low power consumption basing on flooding route

This paper designs a low-power heat meter which is applied in wireless meter reading network of the high-rise buildings. The heat meter functions as a network node, so the design of the heat meter explores the embedded design method. We choose low-power microcontroller MSP430FW427 to be the controller, and its integrated SCAN IF module to test the flow. The combination of methods of the look-up table and linear interpolation is adopted to detect the temperature of the supply and return water. An improved flooding routing protocol is proposed to fulfill the wireless meter reading for high-rise buildings. The temperature, flow rate, and analog RF test results are acquired after the check on the heat meter. Tests show that the heat meter has the advantages of accurate measurement, stable run, fast meter reading, and convenient maintenance, etc., and it has reached national second level.