Multiple radar sensor based non-contact heartbeat rate detection

Abstract A heartbeat detection system based on multiple radar sensors. The multiple sensors are installed in different places of a room, such as above ceiling, underfloor and inside of the wall. Each sensor produces I and Q channel data to the controller. The I and Q channel data are combined as unified data. The unified data for each radar sensor comes into the autoencoder that is well trained by standard and clean signals. On the top of the autoencoder, a selector performs to select the unified data that best reflects the person's heartbeat. Finally, the corresponding heartbeat rate can be measured by the frequency distribution method. Drawings 105 105 105 105 Autoencoder Autoencoder Autoencoder Autoencoder 103 Data 107 117 Sensor Sensor Sensor Sensor Memory 110 104 / 1 0 4 4/\. 104 / 10 2 f\ Detector Figure 1 104 Sensor Sensor Sensor Sensor 111 1 channel data I channel data I channel data I channel data 112 Q channel data Q channel data Qchannel data Q channel data 113 Unified data Unified data ] Unified data Unified data 105 Autoencoder 114 Selector 115 Unified data Frequency 116 - distribution Figure 2