Ultra-Low-Power Sensing Framework for Internet of Things: A Smart Gas Meter as A Case

Gas serves as one of the most indispensable energy sources for industrial production and household life. In order to improve the gas utilization efficiency, smart gas meters for Internet of Things (IoT) has been designed to achieve two-way communication and remote control functions. However, existing smart gas meter do not consider further reduction of power consumption. Thus, we designed an ultra-low-power sensing framework for Internet of Things and applied it to the smart gas meter. Based on a thorough analysis of the metering system, we propose an ultra-low power system framework and a low-power peripheral management solution to reach ultra-low power consumption. Also, we propose a cooperative sensing scheme to achieve the stability and accuracy of gas volume detection. Finally, we implement a real smart gas manage system to evaluate our low-power smart gas meter solution. Verified by comparative test, the proposed gas meter successfully reduces the power consumption by at least 37% compared with the baseline. And experiment results verify the innovative design and confirm that the proposed gas meter features ultra-low power consumption, high precision and high reliability.