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Recently, under the guidance of the State Administration for Market Regulation, the Beijing Institute of Metrology and Measurement Science has made new breakthroughs in the research of measurement technology for smartwatches, successfully developing a calibration device for measuring physiological parameters such as blood oxygen and heart rate, ensuring more accurate health monitoring data for smartwatches through precise measurement technology.
In this new achievement, the high-precision human simulation robot in the smartwatch calibration device can simulate blood oxygen saturation levels from 35% to 100% (with an error of ≤2%) and a heart rate range of 30 to 300 beats per minute (with an error as low as 1%), which corresponds to a monitoring error of less than one beat per minute for healthy individuals, providing a unified measurement “standard” for blood oxygen and heart rate parameters in smartwatches. Additionally, the newly developed “Calibration Specification for Key Parameters of Smartwatches (Draft for Comments)” distinguishes between two monitoring states: exercise and rest, standardizing the methods for assessing the repeatability, measurement error, and uncertainty of step counting, timing, distance measurement, blood oxygen, and heart rate parameters, ensuring consistent and reliable measurement results during exercise and rest.
Currently, an increasing number of people are using smartwatches to monitor heart rate, blood oxygen, sleep, and other indicators as an important means of self-health management. This technological breakthrough in the reliability and accuracy of physiological parameter monitoring data for smartwatches provides strong measurement technical support for the rapidly growing smartwatch market.
The State Administration for Market Regulation will organize relevant measurement technical institutions to accelerate the implementation of measurement technology achievements for smartwatches, establish public measurement standard devices, and corresponding national measurement technical specifications, providing strong measurement support for the accuracy and credibility of health monitoring data for smartwatches and other smart wearable devices.
Source: Measurement DivisionEditor: Zhou Yan, Wei LiuyiProduced by: Li Ruoying