Sensor Data Event Detection for Low-Power Location Tracking
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Solution Overview
Problem
Existing sensor-based tracking systems face challenges in efficiently communicating location updates when a tracking device moves out of range of a user device, leading to inefficiencies in power consumption and notification reliability.
Innovation Solution
A tracking device determines motion duration and selects preferred communication networks (Wi-Fi, telecommunications, or satellite) based on availability and power considerations to send update requests to a cloud-based server, which then notifies the user device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tracking device continuously monitors and communicates location updates, then location tracking reliability is improved, but power consumption increases
Solution Approach 1:
The tracking device monitors motion duration and only initiates communication when motion persists beyond a predetermined threshold. This periodic action filters out transient movements and triggers updates only when necessary, reducing power consumption while maintaining reliable location tracking for significant movements.
Solution Approach 2:
The system dynamically adjusts its behavior based on motion duration. When motion exceeds the threshold, the device transitions to active communication mode; when motion stops below the threshold, it returns to low-power monitoring mode. This dynamic adaptation optimizes the balance between tracking reliability and power consumption.
2Use of energy by moving object
If the tracking device uses short range wireless connection for updates, then power consumption is reduced, but communication reliability deteriorates when out of range
Solution Approach 1:
The system changes the communication parameter (network type) based on availability and reliability conditions. When short-range wireless is unavailable or unreliable, the device switches to alternative networks (Wi-Fi, telecommunications, or satellite), optimizing the balance between power consumption and communication reliability based on actual operational conditions.
Solution Approach 2:
The tracking device is designed with multi-network capability, supporting short-range wireless, Wi-Fi, telecommunications networks, and satellite communications. This universal approach ensures reliable communication regardless of which network is available, while the device can select appropriate networks to minimize power consumption based on the specific operational context.
3Reliability
If the tracking device prioritizes network selection based on availability, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The tracking device autonomously performs network selection based on predefined criteria and availability without requiring complex external control. The device self-evaluates which network to use (short-range wireless, Wi-Fi, telecommunications, or satellite) based on its operational state and environmental conditions, simplifying the overall system architecture while maintaining reliable communication.
Data Source
AI summary
Aspect herein capture methods, media, device, and systems that leverage real-time sensor data to trigger events, location tracking, and notification events using customizable configurations of a tracking device with various sensor(s).