Smart Microwave Sensor Intrusion Verification
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Solution Overview
Problem
Existing security systems are prone to false alarms and fail to accurately detect and verify the presence of intruders within secured areas, often triggered by non-threatening stimuli such as hot air or distant noises.
Innovation Solution
A security system utilizing a smart microwave sensor module connected to a microprocessor unit that calculates velocity and distance of objects or intruders, employing Doppler theory and algorithmic processing to determine if they are within a designated protection territory, and records trigger positions to generate an intrusion track route for verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple motion detection system is used, then the device complexity is reduced, but the reliability of intruder detection deteriorates due to false alarms from non-threatening stimuli
Solution Approach 1:
The system changes multiple parameters simultaneously - velocity threshold, distance threshold, and track route verification - to differentiate genuine intruders from false alarm sources. By requiring all parameters to meet specific criteria, the system achieves high reliability without excessive complexity
Solution Approach 2:
The system implements feedback through track route verification, where the microprocessor continuously monitors and analyzes the movement pattern of detected objects. This feedback loop allows the system to confirm genuine intruders while filtering out false alarms from stationary or irregularly moving objects
2Measurement precision
If velocity and distance calculation algorithms are implemented, then the measurement precision of intruder detection is improved, but the use of energy by the system increases
Solution Approach 1:
The system applies partial action by only performing full velocity and distance calculations when motion is initially detected. For objects that fail to meet the velocity threshold or do not generate valid track routes, the system performs minimal processing, thus reducing overall energy consumption while maintaining high measurement precision for genuine intruders
3Reliability
If multiple verification criteria (velocity range, distance threshold, track route) are required, then the reliability of threat verification is improved, but the loss of time for alarm triggering increases
Solution Approach 1:
The system performs preliminary action by pre-establishing velocity thresholds, distance thresholds, and track route verification criteria before intruder detection begins. This allows the microprocessor to quickly compare real-time measurements against predetermined standards, reducing processing time while maintaining high verification reliability
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 reduces false alarms by accurately identifying the presence and movement of intruders, allowing for more precise verification and confirmation of genuine threats before triggering an alarm.
Implementation Method 1
a smart microwave sensor module electrically connected to a microprocessor unit deployed in the secured area. Using the first signal data, the microprocessor unit may calculate a first velocity of the object or the intruder
Data Source
AI summary
Systems and methods for determining and verifying a presence of an object or an intruder within a secured area are provided. Such systems and methods tan include a microprocessor unit sampling data from a smart microwave sensor module to detect the presence of the object or the intruder, using the data to calculate a velocity of the object or intruder, using the data to calculate a distance between the smart microwave sensor module and the object or the intruder, determining whether the velocity is within a predefined range, and using the distance to determine whether the object or the intruder is within a designated protection territory. Such systems and methods also may include recording trigger positions of the object or the intruder when the velocity is within the predefined range and the distance indicates the object or the intruder is within the designated protection territory.