Wireless Network Camera Indoor Positioning via Signal Integration
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Solution Overview
Problem
Existing position recognition technologies, such as GPS, are ineffective indoors due to poor reception, and image analysis in security systems struggles with accuracy, especially when individuals are obstructed or when distinguishing between people and objects like mannequins or wall paintings.
Innovation Solution
A security management device utilizing wireless network cameras with map display, object information recognition, and position tracking units to store and display camera positions, track terminal positions, and send identification information to neighboring cameras, enabling accurate indoor position recognition and image analysis for improved security management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS-based position recognition is used, then outdoor position tracking is effective, but indoor position recognition fails due to poor reception
Solution Approach 1:
The patent replaces GPS-based mechanical positioning system with a wireless communication-based positioning system. Wireless network cameras use wireless signals (WiFi, Bluetooth, etc.) to communicate with terminals, enabling position recognition indoors where GPS fails. The system extracts position information from wireless communication data and integrates it with image data to achieve accurate indoor positioning.
Solution Approach 2:
The patent introduces wireless communication as an intermediary between the terminal and the position recognition system. Instead of directly using GPS satellites, the system uses wireless network cameras as intermediaries that receive wireless signals from terminals and transmit both signal information and image information to the server for position analysis.
2Productivity
If image analysis is used for security management, then access control can be performed, but accuracy decreases when people are blocked or when distinguishing from objects like mannequins
Solution Approach 1:
The patent merges image information and wireless communication information into a unified analysis system. The server receives both image data from network cameras and wireless signal data from terminals, then integrates these two types of information to perform position recognition and object identification. This combination allows the system to distinguish between real people and objects like mannequins by cross-referencing wireless communication activity with visual data.
Solution Approach 2:
The patent creates a multi-functional security management system that can perform multiple tasks simultaneously: position recognition, object identification, access control, and loitering detection. The same system architecture handles diverse security management functions by analyzing both image and wireless communication data, improving overall system versatility and accuracy.
Data Source
AI summary
Provided is a security management device for tracking a terminal located indoors. The security management device display on a map a position of the at least one wireless network camera and information about a terminal located in a range capable of wireless communication with the at least one wireless network camera, control a wireless network camera to track a position of the terminal based on the information about the terminal while the terminal is in a range capable of wireless communication with the wireless network camera, and control the wireless network camera to send identification information of the terminal to a neighboring wireless network camera when the terminal moves out of the range capable of wireless communication with the wireless network camera.