Presence Detector Zone Configuration via Image Indexing
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Solution Overview
Problem
Existing presence detection systems in open spaces, such as offices, face challenges in efficiently configuring zones for presence detection without consuming excessive computing power or requiring significant configuration time and bandwidth, especially when dealing with multiple areas.
Innovation Solution
A method that configures presence detectors by acquiring physical characteristics of the space, selecting a predetermined image, determining indexing symbols, and presetting zones of interest without transmitting images, allowing for efficient data transmission and reduced computing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If images are transmitted from the presence detector to the configuration device for zone configuration, then the user can visually configure zones of interest, but the bandwidth consumption and energy usage increase significantly
Solution Approach 1:
The patent extracts only the essential configuration information (zone coordinates, dimensions, and positions) from the image data, transmitting only this extracted information rather than the complete image. This allows zone configuration to proceed with minimal data transmission, resolving the contradiction between configuration capability and energy/bandwidth consumption.
Solution Approach 2:
The system performs preliminary zone configuration based on extracted image data before actual presence detection begins. The configuration device receives pre-processed zone information and allows users to define zones of interest in advance, eliminating the need for continuous image transmission during operation and reducing ongoing energy consumption.
2Reliability
If multiple presence detectors with autonomous cameras are deployed to monitor different zones, then zone-specific presence detection is enabled, but the configuration time and complexity increase significantly
Solution Approach 1:
The patent combines the configuration data from multiple presence detectors into a unified format that can be processed simultaneously. By merging the configuration information and using a standardized data structure, the system reduces the overall configuration time while maintaining the ability to perform zone-specific detection across multiple devices.
Solution Approach 2:
The system changes the parameter representation from complete image data to simplified coordinate and dimension parameters. This parameter transformation allows for faster configuration processing and reduces the time required to set up multiple detectors, while still providing sufficient information for accurate zone-specific presence detection.
3Measurement precision
If complete images are transmitted for configuration purposes, then precise zone definition is possible, but the computing power required increases significantly
Solution Approach 1:
The patent extracts only the critical geometric parameters (coordinates, dimensions, and positions) needed for zone definition from the image data, rather than processing and transmitting complete images. This extraction approach maintains sufficient precision for accurate zone boundary definition while dramatically reducing the computing power required for configuration.
Data Source
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AI summary
One aspect of the invention relates to a method for configuring (C) at least one area of interest located within the field of view of a presence detector, comprising: - an acquisition step (C1) of physical characteristics of the space (E) in which the presence detector is to detect presences, - a selection step (C2) of a predetermined image (I1) based on the characteristics, comprising an arrangement of areas of interest, - an indexing determination step (C3) of the presence detector (I, I') on the selected image (I1, I7), - a presetting step (C4) of at least one area of interest comprising a substep of defining each area of interest and a substep of configuring (C42) at least one area of interest in the configured image (I1, I7), - a final data transmission step (C5) of at least one configured area of interest to the detector of presence.