University of Alberta researchers, in collaboration with Canada’s Department of National Defence, have created a small sensor that operates without batteries. This innovative sensor can monitor vital signs and identify frostbite in soldiers in extreme cold environments. The project, conducted over several years, is part of the Department of National Defence’s Innovation for Defence Excellence and Security program and is led by Ashwin Iyer, a professor at the University of Alberta’s engineering faculty.
The primary aim of the program is to adapt commercial telecommunications technology for military applications. The University of Alberta is known for its cutting-edge research in SWaP-C systems, which focus on technology that is compact, lightweight, energy-efficient, and cost-effective.
In an interview with CBC’s Shannon Scott on The Trailbreaker, Iyer discussed the development of these next-generation sensors designed for extreme cold conditions. The sensors are designed to address the challenge of tracking soldiers’ health in harsh environments like the High Arctic, where traditional battery-powered devices often fail due to the cold temperatures.
The new sensors can function in temperatures as low as -70°C by utilizing energy harvested from the environment. This technology, based on radio frequency identification technology, allows the sensors to power themselves using energy from radio frequency waves, similar to how cell phones communicate. By miniaturizing the sensors and antennas, the research team has overcome challenges associated with wireless sensor systems.
The sensors are equipped to monitor vital signs such as heart rate, respiration, core body temperature, and extremity temperature to detect early signs of health issues like frostbite. The goal is to provide timely alerts to ensure prompt medical assistance for soldiers in need.
Beyond military applications, the researchers envision broader uses for this technology, including emergency response and monitoring health in extreme environments worldwide. The sensors’ versatility allows for applications beyond the military, such as detecting hazards like flooding or carbon monoxide in everyday settings.
Overall, this innovative sensor technology has the potential to revolutionize health monitoring in challenging conditions and contribute to various sectors beyond military operations.