State-Change Sensor Activation for Low-Power Content Presentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices with sensors consume more power than necessary if not managed properly.
Innovation Solution
Implement a system where sensors operate in a low-power mode until a state change is detected, switching to a high-power mode to gather additional contextual information after the change, thereby reducing overall power consumption while ensuring accurate content presentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensors continuously gather sensor data to determine location and activity, then the accuracy and timeliness of content presentation is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the sensor subset dynamic rather than static. The system switches between a first subset of sensors for normal operation and a second subset (including additional sensors) only when state changes are detected. This dynamic adjustment of sensor configuration allows the system to maintain high accuracy when needed while significantly reducing power consumption during normal operation.
Solution Approach 2:
The patent changes the parameter of sensor activation based on system state. By monitoring location and activity states and changing which sensors are active accordingly, the system optimizes the balance between measurement accuracy and energy consumption. The parameter change occurs at the threshold of state changes, activating additional sensors only when necessary.
2Loss of information
If a larger subset of sensors is used continuously, then the comprehensiveness of contextual information is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent segments the sensor system into multiple subsets - a first subset for basic location and activity detection and a second subset that includes additional sensors for enhanced contextual information. This segmentation allows the system to manage sensor complexity by activating only the necessary subset based on the current operational requirements and detected state changes.
Data Source
AI summary
An electronic device may maintain a list of possible locations for the electronic device and a list of possible activities for the electronic device. The electronic device may gather sensor data and determine the location and the activity for the electronic device based on the sensor data. In response to detecting a change in the location and/or activity, the electronic device may obtain additional sensor data using at least one sensor that was previously turned off. Using the additional sensor data, the electronic device may make a determination to present content to the user. In response to detecting the change in the location and/or activity, the electronic device may increase a sampling rate (and power consumption) of at least one sensor.