Event-Triggered Wake Intervals for Responsive Networked Cameras
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Solution Overview
Problem
Networked camera devices face a trade-off between battery life and responsiveness due to static wake intervals, leading to increased power consumption or decreased response times.
Innovation Solution
Adjusting wake intervals dynamically based on event detection, such as user interaction or motion sensing, to minimize battery consumption while enhancing responsiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the camera device uses a static wake interval to periodically listen for messages, then the device can maintain battery life by staying in sleep mode most of the time, but the responsiveness to user requests or events is decreased
Solution Approach 1:
The patent applies dynamics by transitioning from a static wake interval to a dynamic one. The wake interval is adjusted based on detected events (motion, sound, button press) or user actions (initiating live view). When an event or action is detected, the wake interval is reduced to increase responsiveness; when no events are detected, the wake interval is increased to conserve battery power. This dynamic adjustment resolves the contradiction between battery life and responsiveness.
Solution Approach 2:
The patent changes the parameter of wake interval from a fixed value to a variable value that adapts based on system state. The controller modifies the wake interval duration in response to detected events or user requests, effectively changing the listening frequency parameter. This parameter change enables the device to optimize both power consumption and responsiveness under different operating conditions.
2Speed
If the camera device increases wake interval frequency to improve responsiveness, then response times are reduced, but battery power is depleted faster
Solution Approach 1:
The system dynamically adjusts the wake interval frequency based on real-time conditions. Instead of maintaining a high frequency continuously (which would deplete battery), the frequency is increased only temporarily when events are detected or when users initiate actions like live view. This dynamic approach maintains fast response times when needed while conserving battery power during normal operation.
Solution Approach 2:
The patent uses periodic wake intervals as the base operating mode to conserve power, but introduces event-triggered periodic actions that temporarily increase the frequency. The device periodically wakes up at extended intervals under normal conditions, but switches to more frequent periodic waking when motion, sound, or user requests are detected. This layered periodic action strategy resolves the contradiction between response time and power consumption.
3Use of energy by moving object
If the camera device uses extended wake intervals to conserve battery power, then energy consumption is reduced, but the device may miss timely responses to user requests or events
Solution Approach 1:
The system implements feedback mechanisms where the controller monitors for events (motion detection, sound detection, button presses) and user actions (live view initiation). When feedback indicates an event or user request, the system responds by reducing the wake interval to ensure timely response. This feedback loop maintains reliability by detecting when extended intervals might cause missed responses and adjusting accordingly.
Solution Approach 2:
The patent applies preliminary action by proactively reducing the wake interval when events are detected or when users initiate actions like live view, before the extended interval could cause a missed response. The system anticipates potential responsiveness issues by detecting events in advance and adjusting the wake interval preemptively, ensuring reliable response timing while maintaining extended intervals during normal operation.
Data Source
AI summary
This disclosure describes techniques for enabling dynamic adjustment of a wake interval frequency based on detection of a prioritization event. In embodiments, such techniques may comprise operating a STA device in a first mode in which wake intervals recur after a first amount of time and receiving, by the STA device from a AP device, information about a prioritization event. Based on receiving the information, the techniques may further involve operating the STA device in a second mode in which wake intervals recur after a second amount of time and, based on determining that the prioritization event has ended, operating the STA device in the first mode.