LOW-POWER ACTIVITY MONITORING

摘要

Some examples include a secure low-power sensor platform able to be used for activity monitoring or other purposes. For instance, a sensor system may sense sparse signals using compressed sensing. As one example, compressed sensing may be used to obtain sparse signals from analog sensor signals received from one or more sensors. The data obtained by compressed sensing may be sent subsequently to a computing device to reconstruct the sensor signal. Examples herein enable lower power usage, lower cost, and lower weight than conventional devices, while also enabling processing advantages, such as less overall data to process and lower data storage utilization.

主权项

1. A sensor block comprising:
an amplifier to receive a sensor signal from a sensor and output an amplified signal; a compressed sensing analog-to-digital conversion block coupled to the amplifier, the compressed sensing analog-to-digital conversion block including a circuit to take random samples of the amplified signal and output compressed sensing data comprising the random samples; a post processor coupled to the compressed sensing analog-to-digital conversion block to receive the compressed sensing data; and a communication interface coupled to the post processor to receive the compressed sensing data from the post processor and send the compressed sensing data to a computing device.