Development of Wearable Health Monitoring Devices Based on Embedded Technology

This study found that in static states, the device can accurately transmit signal data with an error rate below 0.5%, packet loss rate of 2% and signal-to-noise ratio reaching 24dB. However, its performance declines slightly during motion states, with increased error rate (1.2%), packet loss rate (3%) and decreased signal-to-noise ratio (22dB). The error rate remains around 0.8% for different heart rate ranges. Moreover, signal loss or damage leads to a significant increase in error rate (5%) and packet loss rate (10%). Latency tests also demonstrate the device's ability to provide timely health monitoring data with average latency of 10-15ms. These results indicate the device's high precision and reliability in interference-free conditions, while further improvements in dynamic environments are needed. The comprehensive evaluation helps understand the strengths and limitations of such devices.