Building Power Line Infrastructure for Intrusion Detection

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Solution Overview

Problem

Urban combat units face significant logistical and manpower challenges in maintaining building security due to the porous nature of urban environments, where enemy combatants can infiltrate through hidden ingress points, necessitating extensive equipment and personnel to monitor and secure buildings effectively.

Innovation Solution

The use of a building's existing power line infrastructure to provide power, data, and sensor observables for a monitoring system, incorporating sensor modalities like impedance, capacitive, inductive, electric field, and Radar technologies to detect intrusions with minimal structural instrumentation, leveraging the ubiquitous electrical power distribution system for communication and sensing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional intrusion detection systems are deployed to monitor buildings, then detection capability is improved, but equipment complexity and logistical burden increase

Engineering Contradiction:

Improveintrusion detection capabilityVSAvoidequipment complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes existing power lines serve multiple functions: power distribution, data communication, and intrusion detection sensing. By injecting measurement signals into the power lines and analyzing impedance changes, the system uses the same infrastructure for both electrical power delivery and security monitoring, eliminating the need for separate sensor installations throughout the building.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The power line infrastructure serves itself by providing detection capability without requiring additional dedicated sensing equipment. The existing electrical wiring becomes the sensor medium, and the power distribution system simultaneously performs its primary function while enabling intrusion detection through impedance measurements.

Inventive Principle:

Principle #25Self-service

2Measurement precision

If more sensors and equipment are installed to detect intrusions through hidden ingress points, then detection sensitivity is improved, but personnel and equipment requirements increase

Engineering Contradiction:

Improveintrusion detection sensitivityVSAvoidpersonnel and equipment quantity

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The system uses existing power lines to provide comprehensive building-wide monitoring without requiring additional personnel or equipment deployments. A single monitoring point can detect intrusions throughout the entire building by analyzing impedance changes in the power line network.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent divides the building into electrical zones based on power line segments, allowing detection of intrusions in different areas through impedance measurements at specific locations. This enables comprehensive coverage while minimizing the number of monitoring points required.

Inventive Principle:

Principle #1Segmentation

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

This approach minimizes the logistical burden by utilizing existing power lines for intrusion detection, enabling effective monitoring with reduced equipment needs, enhancing detection sensitivity and robustness while reducing the personnel required for urban operations.