Weight-Confirmed Package Tracking for Real-Time Placement Verification

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Solution Overview

Problem

Existing package delivery systems face inefficiencies and errors in tracking packages due to misplacement and lack of real-time monitoring, leading to increased costs and time expenditure, and existing solutions like RFID chips require additional hardware and infrastructure.

Innovation Solution

A package tracking system using weight sensors and optical cameras to confirm the presence and location of packages, ensuring proper handling and reducing errors through continuous monitoring without significant behavioral changes or hardware upgrades.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If RFID chips are placed on packages to track movement, then package tracking capability is improved, but device complexity and infrastructure requirements increase

Engineering Contradiction:

Improvepackage tracking capabilityVSAvoidhardware and infrastructure requirements

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces electronic RFID tracking systems with a mechanical weight-based detection system. Weight sensors measure changes in weight on conveyor belts and loading docks to detect package movement, eliminating the need for RFID chips and readers on every package while achieving similar tracking functionality through a different physical principle

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

Instead of using RFID tags that store digital information about packages, the system creates a physical copy of package presence information through weight measurements. The weight sensors capture tangible evidence of package location and movement, providing a redundant verification method that confirms package tracking without requiring additional electronic hardware

Inventive Principle:

Principle #26Copying

2Ease of manufacture

If manual scanning is used to track packages through the delivery system, then implementation cost is reduced, but measurement precision and real-time monitoring capability deteriorate

Engineering Contradiction:

Improveimplementation costVSAvoidreal-time monitoring capability

Core Design Contradiction:

Ease of manufactureVSMeasurement precision

Solution Approach 1:

The weight sensor system operates continuously to monitor package movement throughout the delivery process. Unlike manual scanning which occurs at discrete points in time, the weight-based system provides constant monitoring of package location and movement, enabling real-time tracking without interrupting package flow or requiring manual intervention at each stage

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The system automatically detects and records package movement through weight changes without requiring manual scanning operations. Packages essentially track themselves by their inherent physical property of weight, eliminating the need for human operators to actively scan and record package locations while maintaining precise real-time monitoring

Inventive Principle:

Principle #25Self-service

3Productivity

If loaders manually sort and load packages without verification, then productivity is improved, but reliability of package placement deteriorates

Engineering Contradiction:

Improveloading speedVSAvoidpackage placement accuracy

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The weight sensor system provides immediate feedback to loaders about package placement accuracy. When a package is placed on a loading dock or conveyor, the weight sensors detect the weight change and confirm proper placement in real-time, allowing loaders to quickly correct errors without slowing down the loading process significantly

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary verification of package placement before packages depart from the facility. Weight sensors monitor and confirm that packages are correctly positioned on loading docks and conveyors before they are moved to delivery vehicles, preventing errors from occurring in the first place rather than detecting them after delivery attempts

Inventive Principle:

Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system provides real-time tracking and confirmation of package placement, reducing errors and improving efficiency by actively monitoring package movement and handling, thus optimizing delivery processes.

Implementation Method 1

a weight sensor disposed on one side of the horizontal surface, and a processor in communication with the weight sensor. The processor is adapted to detect a change in weight measured by the weight sensor

Methodology Applied

Scientific EffectWeight sensing:

Data Source

PatentUS20250363446A1System and method of object tracking using weight confirmation

Publication Date: 2025.11.27 POSITION IMAGING INC

AI summary

Methods and systems for tracking an object comprise a horizontal surface upon which objects are to be placed, a weight sensor disposed on one side of the horizontal surface, and a processor in communication with the weight sensor. The processor is adapted to detect a change in weight measured by the weight sensor, to associate the detected weight change with an identified object and with a location on the horizontal surface, and to confirm whether a cause of the weight change at the location on the horizontal surface corresponds to a proper handling of the identified object.