Portable Device Positioning with Local Storage and Periodic Upload

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Solution Overview

Problem

Conventional portable device tracking mechanisms are hindered by poor wireless communication network connections and unsatisfactory positioning environments, leading to unreliable location tracking.

Innovation Solution

A portable device with a transceiver, positioning unit, storage unit, and controller that fetches tracking parameters, generates positioning information, and selectively uploads it to a tracking server based on activation conditions, ensuring consistent and stable data transfer even in challenging environments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the portable device continuously transmits positioning information to the tracking server via wireless communication network, then the tracking reliability is improved, but the energy consumption increases and network dependency worsens

Engineering Contradiction:

Improvetracking reliabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic positioning information collection and upload, where the portable device collects positioning information at predetermined time intervals and uploads it to the tracking server periodically. This reduces energy consumption compared to continuous transmission while maintaining acceptable tracking reliability through regular updates.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent stores positioning information locally in the portable device before uploading to the tracking server. By collecting and caching positioning data in advance during periods when network connection is available or energy consumption is acceptable, the system ensures tracking continuity even when network conditions deteriorate or energy is conserved.

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If the portable device uploads positioning information frequently to the tracking server, then the tracking precision is improved, but the network dependency increases and tracking fails in poor network conditions

Engineering Contradiction:

Improvetracking precisionVSAvoidnetwork condition adaptability

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The portable device collects and stores multiple positioning information records locally before uploading to the tracking server. This preliminary collection ensures that even if network conditions are poor at the moment of upload, the device can transmit accumulated data to achieve precise tracking without requiring continuous network connectivity.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces a local storage unit as an intermediary between the positioning system and the tracking server. This intermediary buffers positioning information, allowing the device to decouple the timing of position data generation from the timing of data transmission, thereby adapting to varying network conditions while maintaining tracking precision.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Loss of information

If the portable device collects positioning information continuously, then the tracking completeness is improved, but the storage requirements increase and power consumption worsens

Engineering Contradiction:

Improvetracking completenessVSAvoiddata storage volume

Core Design Contradiction:

Loss of informationVSQuantity of substance

Solution Approach 1:

The system collects positioning information at predetermined time intervals rather than continuously, reducing the total volume of data stored while maintaining tracking completeness through regular sampling. This periodic collection balances information completeness with storage efficiency.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The portable device manages stored positioning information by discarding older or redundant data records when storage capacity is limited, while recovering or retaining critical positioning data needed for accurate tracking. This selective data management maintains tracking completeness within constrained storage resources.

Inventive Principle:

Principle #34Discarding and recovering

Data Source

PatentUS9071929B2Portable device and associated position method

Publication Date: 2015.06.30 WISTRON CORP

AI summary

A portable device and associated positioning method is provided. The portable device, signally connected to a tracking server, includes a transceiver, a positioning unit and a controller. The positioning method includes steps of: fetching a tracking parameter corresponding to the portable device from the tracking server when an activation condition is satisfied; generating at least one set of positioning information through a positioning system; storing the first positioning information to a positioning database; and selectively uploading contents of the positioning database to the tracking server according to the tracking parameter.