A Cyber-Physical Design for Indoor Temperature Monitoring Using Wireless Sensor Networks

作者：Shen Cong^*; Chen Shengbo

来源：IEEE Wireless Communications and Networking Conference (WCNC), 2017-03-19 to 2017-03-22.

Indoor temperature monitoring using wireless sensor networks is critical in many applications. For example, in data centers, it is important to monitor if the indoor temperature is within certain range so that the computers can function with near-optimal performance. In contrast to existing research that often separates the sensor network design and the measured temperature, this paper proposes a cyber-physical design approach to monitor the indoor temperature using wireless sensor networks. The source sensor wakes up and senses the temperature periodically using sleep/wake duty cycles and sends the data to the destination via multi-hop relaying nodes in an anycast way. Moreover, the period of sleep/wake duty cycle is dynamically adjusted based on the sensed temperature: when the measured temperature is normal, the sensor nodes wake up infrequently for better energy efficiency; as the sensed temperature approaches a pre-determined threshold, the sensor nodes wake up more frequently to avoid any delayed alarm trigger. The proposed design is implemented using TelosB with TinyOS, and experiments confirm that the cyber-physical system reports the alarm with a very small delay while achieving high long-term energy efficiency.

• 出版日期2017
• 单位中国科学技术大学