Ultra-low power continues to be one of the key requirements for battery operated sensor node applications such as Industrial IoT. Duty-cycling is one of the most commonly used technique to drive longer battery life. However, the requirement for the sensor nodes to wake-up asynchronously in response to an event of interest (“always-on” operation) makes it challenging to reduce power in the standby mode. Similarly, the need for the nodes to be increasingly intelligent, makes it challenging to reduce power in active mode.

This talk will share experiences with computing, with a focus on building a mixed-signal image sensor that enables real-time, always-on video analytics on mobile computers.