Integrated package and mail delivery security system

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Solution Overview

Problem

Current mail and package delivery systems lack secure access control and tracking mechanisms, leaving sensitive items unattended in unsecured public mailboxes, which are vulnerable to theft and do not effectively verify if items are deposited in the intended receptacle.

Innovation Solution

A secure delivery system featuring a deposit box with a lock mechanism operated by proximity sensors, allowing authorized delivery personnel and users to access the box using registered sensors, and a tracking system that monitors the status of the box and items through communication with a server, ensuring secure deposition and tracking of delivered items.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If public access mailboxes are used for delivery, then delivery accessibility is improved, but security of delivered items deteriorates

Engineering Contradiction:
Improvedelivery accessibilityVSAvoidsecurity of delivered items
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The system segments access control by implementing proximity sensors that distinguish between authorized delivery personnel and unauthorized public users. The deposit box is divided into secure (interior space) and accessible (exterior) zones, with the door acting as a controlled boundary that only opens for authenticated users with registered proximity sensors.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The proximity sensor acts as an intermediary between the user and the lock mechanism. It detects the presence of authorized delivery personnel and translates this detection into a signal that triggers the lock mechanism to unlock, providing secure access without requiring physical keys or manual authentication.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If tracking systems are implemented to monitor delivery location, then delivery tracking capability is improved, but ability to verify item deposition in mailbox deteriorates

Engineering Contradiction:
Improvedelivery tracking capabilityVSAvoidverification of item deposition
Core Design Contradiction:
Loss of informationVSMeasurement precision

Solution Approach 1:

The system implements feedback through proximity sensors that detect when the delivery vehicle approaches and when it departs. This creates a closed-loop verification system that confirms the delivery vehicle actually reached the mailbox location and completed the deposition process, providing precise verification beyond simple location tracking.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces mechanical tracking methods with electronic sensor-based detection. Proximity sensors use electromagnetic fields to detect the presence of the delivery vehicle, substituting physical mechanical verification with non-contact electronic measurement that provides more precise and reliable deposition verification.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If proximity sensors and lock mechanisms are added to deposit boxes, then security access control is improved, but device complexity deteriorates

Engineering Contradiction:
Improvesecurity access controlVSAvoidcomplexity of deposit box system
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The proximity sensor serves multiple functions: it acts as an authentication device, a communication interface between the delivery vehicle and box, and a trigger for the lock mechanism. This multi-functionality reduces the need for separate components and simplifies the overall system architecture despite the enhanced security capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system implements self-service through automatic lock engagement and disengagement based on proximity sensor detection. The lock mechanism automatically unlocks when an authorized vehicle approaches and automatically re-locks when the vehicle departs, eliminating the need for manual locking operations and reducing operational complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11141015B2Integrated package and mail delivery security system
Publication Date: 2021.10.12 IMDSS SOLUTIONS LLC
  • US11141015B2 patent drawing
  • US11141015B2 patent drawing
  • US11141015B2 patent drawing

AI summary

A system for securely depositing an item includes: a deposit box with a door configured to provide selective access to an interior space in the deposit box; a lock mechanism configured to attach to the deposit box to selectively block the door from opening; a first proximity sensor operatively connected to the lock mechanism to operate the lock mechanism to block the door or allow the door to open; a second proximity sensor configured to be attached to at least one of: a delivery person and a piece of delivery equipment; a third proximity sensor; and a first transmitter operatively connected to the lock mechanism and configured to transmit a signal indicative of operating information regarding the lock mechanism, and wherein the deposit box is at least 18 inches wide and 24 inches long.