3D Virtual Reality Mapping for Indoor Security Sensor Correlation
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Solution Overview
Problem
Current security and protection systems fail to accurately differentiate between relevant and non-relevant changes in monitored spaces, leading to a high number of false alarms and inability to accurately locate threats in three-dimensional environments, especially indoors, due to the limitations of GPS technology and lack of sensor correlation across different types and technologies.
Innovation Solution
A system of electronic devices that uses a three-dimensional virtual reality mapping with a cell-based grid to correlate signals from various sensors, employing Agent devices for autonomous analysis and classification, and a Gateway for overall reliability assessment and rule-based alarm activation, allowing for precise event evaluation and reduced false alarms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS technology is used for location, then geographical location can be provided, but it cannot locate changes indoors and has inherent inaccuracy
Solution Approach 1:
The patent introduces an intermediary coordinate system based on sensor positions and orientations as a mediator between GPS and the monitored space. This intermediary system uses the known positions and orientations of sensors to calculate coordinates of changes in three-dimensional space, enabling accurate indoor location without GPS satellites.
Solution Approach 2:
The patent replaces the GPS satellite-based electromagnetic positioning system with a local sensor-based coordinate system. Instead of relying on external satellite signals that cannot penetrate buildings, the system uses local sensors with known positions and orientations to establish a three-dimensional coordinate system for accurate indoor threat location.
2Reliability
If multiple sensors are used to monitor space, then more changes can be detected, but false alarms increase without sensor correlation
Solution Approach 1:
The patent merges information from multiple sensors by correlating their signals through a central processing unit. The system combines data from sensors with known positions and orientations to determine the coordinates of changes in three-dimensional space, allowing differentiation between genuine threats and false alarms through spatial and temporal correlation.
Solution Approach 2:
The system implements feedback by continuously monitoring sensor signals and comparing them against each other and against threat criteria. The central processing unit analyzes correlated sensor data and provides feedback on whether detected changes represent genuine threats or false alarms, adjusting the monitoring response accordingly.
3Loss of information
If bi-dimensional GPS coordinates are used, then location can be provided, but three-dimensional threat location is impossible
Solution Approach 1:
The patent transitions from bi-dimensional GPS coordinates to a three-dimensional coordinate system based on sensor positions and orientations. By incorporating the vertical dimension and using sensors positioned at different heights and orientations, the system can accurately locate threats in three-dimensional space, including suspended operators and multi-level environments.
Data Source
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AI summary
A system of electronic devices for the detection and location of changes in a predetermined space for the protection and security of places, persons, and goods, comprising at least two general sensors, two data processing electronic devices connected to each other. One of the two data processing devices comprises two electronic means. One of said electronic means reproduces with an appropriate fidelity the place to be monitored into a three-dimensional virtual reality. The second electronic means is capable of acquiring and storing security rules, receiving from the sensors and mapping their signals by correlating them according to criteria of coincidence in the virtual reality to identify events predetermined by the security rules as relevant for the activation of appropriate alarms or notifications.