Activation of Ancillary Sensor Systems Based on Triggers from a Wearable Gesture Sensing Device

An event detection system includes sensors to detect movement and other physical inputs related to a user, which the event detection system can process to identify gestures of the user, and possibly also determine, using historical data, machine learning, rule sets, or other techniques for processing data to derive an inferred event related to the user sensed by the sensors. An inferred event might be an eating event, a smoking event, a personal hygiene event, a medication related event, or some other event the user is inferred to be engaging in. When an event is inferred to have started, to be ongoing, and/or to have concluded, the event detection system can take actions related to that event, such as obtaining other information to be stored in memory in association with the data representing the event, interacting with the user to provide information or reminders or to prompt for user input, sending a message to a remote computer system, sending a message to another person, such as a friend, health care provider, first responder, or other action(s).