Vehicle Perimeter Breach Warning with Size-Based Alert Filtering

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Solution Overview

Problem

Current detection systems, such as smoke detectors and vehicle alert systems, often produce false positives due to the inability to differentiate between dangerous and non-dangerous situations, leading to user frustration and potential deactivation of safety features, which can result in missed critical events and increased nuisance alarms.

Innovation Solution

A system utilizing a combination of sensors and machine learning to accurately classify objects in real-time around a vehicle, filtering out irrelevant data and providing targeted alerts or actions based on the context and intent of detected objects, reducing false positives and minimizing user analysis time while maintaining decision-making control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional detection systems activate alerts for any detected object or condition, then safety coverage is maximized, but false-positive alerts increase causing user frustration and system deactivation

Engineering Contradiction:
Improvesafety coverageVSAvoidfalse-positive alerts
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system changes the parameters of detection by transitioning from simple presence detection to multi-parameter analysis including object classification, intent determination, and contextual evaluation. This allows the system to distinguish between dangerous and non-dangerous situations while maintaining comprehensive safety coverage.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces an intermediary classification layer between detection and alerting. This intermediary system evaluates detected objects and situations to determine whether they constitute genuine threats, thereby reducing false positives while maintaining reliable safety coverage through nuanced judgment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of information

If detection systems provide comprehensive monitoring of all surroundings, then situational awareness is improved, but user information overload increases

Engineering Contradiction:
Improvesituational awarenessVSAvoiduser information processing
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The system extracts and filters only the most relevant information from comprehensive environmental monitoring. By identifying and highlighting only critical threats and significant events, the system maintains complete situational awareness while presenting manageable information to the user.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by providing different levels of information detail in different contexts. Critical threats receive prominent attention with detailed information, while non-critical elements receive minimal or no attention, optimizing user information processing based on local situational requirements.

Inventive Principle:
Principle #3Local quality

3Measurement precision

If alert systems notify users of all detected anomalies, then detection sensitivity is maximized, but user decision-making time increases

Engineering Contradiction:
Improvedetection sensitivityVSAvoiduser evaluation time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary classification and evaluation of detected anomalies before presenting them to the user. By pre-processing detection data to identify and prioritize genuine threats, the system maintains high detection sensitivity while significantly reducing the time users need to spend evaluating alerts.

Inventive Principle:
Principle #10Preliminary action

4Reliability

If safety systems activate for any perceived threat, then protection coverage is maximized, but system usability deteriorates

Engineering Contradiction:
Improveprotection coverageVSAvoidsystem usability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system changes operational parameters by implementing multi-factor detection including object classification, intent analysis, and contextual evaluation. This enables the system to maintain comprehensive protection coverage while activating alerts only for genuine threats, thereby preserving system usability.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3867889B1Perimeter breach warning system
Publication Date: 2024.05.22 FEDERAL SIGNAL CORPORATION
  • EP3867889B1 patent drawingFigure 1
  • EP3867889B1 patent drawingFigure 2
  • EP3867889B1 patent drawingFigure 3

AI summary

A system for object detection within a monitored zone around a vehicle includes: at least one processor; and memory encoding instructions which, when executed by the processor, cause the system to: detect an object; and suppress an alert associated with detection of the object when a size of the detected object is below a lower size threshold value or above an upper size threshold value.