Ipir Intrusion Detection Using Heat and Image Sensor Fusion
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Solution Overview
Problem
Existing intrusion detection systems often generate false reports due to sensors malfunctioning, incorrectly identifying infrared heat from animals as intrusions, leading to unnecessary resource consumption and reduced reliability in reporting actual intrusions.
Innovation Solution
An image passive infrared ray (IPIR) device that uses heat sensors and image sensors to differentiate between ambient and intruder-generated heat, transmitting alarm signals and images to a server for verification, reducing false reports through precise intrusion detection and image-based confirmation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If infrared heat sensors are used to detect intruders, then intrusion detection capability is improved, but false reports increase due to inability to distinguish between human and animal heat sources
Solution Approach 1:
The patent combines multiple heat sensors (first and second heat sensors) with different detection characteristics to capture infrared heat from different directions or wavelengths. By merging their detection results, the system can distinguish between human and animal heat sources through pattern recognition, thereby improving both detection accuracy and report reliability without increasing false alarms.
Solution Approach 2:
The patent introduces an image sensor as an intermediary verification component. When heat sensors detect potential intrusion, the image sensor captures visual information to confirm whether the heat source is a human intruder or an animal. This intermediary verification mechanism resolves the contradiction by providing additional evidence to differentiate between legitimate intrusions and false alarm sources.
2Reliability
If multiple sensors are deployed to reduce false reports, then report reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent designs the image sensor to serve multiple functions: it acts as a verification tool for heat sensor alerts, provides visual recording for forensic purposes, and can independently detect intruders in low-light conditions. This multi-functionality reduces the need for separate dedicated components, thereby improving reliability while controlling system complexity.
Solution Approach 2:
The system implements self-verification through the interaction between heat sensors and image sensors. When heat sensors detect abnormal temperature patterns, the image sensor automatically activates to verify the source, creating a self-correcting mechanism that reduces false reports without requiring external intervention or complex additional hardware.
3Reliability
If image sensors are used to verify intrusions, then false report reduction is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic or triggered operation of the image sensor rather than continuous operation. The image sensor activates only when heat sensors detect suspicious temperature patterns, consuming energy intermittently rather than continuously. This periodic action maintains reliable verification capability while significantly reducing overall energy consumption compared to continuous imaging.
Solution Approach 2:
The patent extracts the verification function from continuous operation and implements it only when necessary. By separating the always-active heat detection function from the on-demand image verification function, the system achieves reliable false report reduction while minimizing energy consumption by activating the high-power image sensor only during potential intrusion events.
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
The IPIR device enhances the reliability of intrusion reporting by distinguishing between animal and human heat sources, reducing false alarms and allowing for efficient verification of intrusion events, while also utilizing wireless communication frequencies that do not require permission or reports, thereby lowering operational and maintenance costs.
Implementation Method 1
a heat sensing portion including a plurality of heat sensors configured to generate a reference heat sensing value by measuring infrared heat of the surveillance area
Implementation Method 2
an image sensor configured to generate a reference image by taking an image of the surveillance area
Implementation Method 3
a light source configured to provide a quantity of light to the image sensor when the image is taken
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The present invention relates to an intrusion detection system. The intrusion detection system is installed in a surveillance area and may comprise: an image heat ray device for measuring infrared heat generated from an intruder intruding into the surveillance area to determine an intrusion occurrence and generate an alarm signal for indicating the intrusion occurrence, generating a first image and a second image by shooting an image in the surveillance area, generating an intrusion signal including the generated alarm signal, the first image, the second image and a reference image which is an image shot prior to a situation of the intrusion occurrence in the surveillance area, and transmitting the generated intrusion signal to a controller through a frequency for a security system; the controller for receiving the intrusion signal from the image heat ray device and transmitting the received intrusion signal to a server through an Internet network; and the server for receiving the intrusion signal from the controller, transmitting the intrusion signal to the controller and a pre-mapped mobile communication terminal, extracting the alarm signal, the reference image, the first image, and the second image from the received intrusion signal, displaying the extracted alarm signal in an alarm signal display area of a display unit installed at the server, and displaying the extracted reference image, first image, and second image, on an image display screen of the display unit.