Access Point Monitoring Using Region-Based Event Correlation
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Solution Overview
Problem
Existing access point monitoring systems often produce false alarms due to authorized users opening doors or windows, and they lack the ability to differentiate between authorized and unauthorized access based on the region from which the event originates.
Innovation Solution
An apparatus and method that utilizes a transmitter and processing circuitry to receive and analyze access point and environment sensor data, determining the region of origin for access point events within a modifiable time interval, allowing for differentiated notifications and actions based on whether the event occurred within a predetermined time frame after a first-region event.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If access point sensors are used to detect opening and closing events, then the monitoring capability is improved, but false alarms increase due to authorized user activity
Solution Approach 1:
The system divides the monitoring approach into multiple independent sensor types (motion sensors, presence sensors, shock sensors, environmental sensors) that work together. Each sensor provides a different aspect of detection, and their combined data allows the system to distinguish between authorized and unauthorized access events, reducing false alarms while maintaining detection accuracy.
Solution Approach 2:
The processing circuitry acts as an intermediary that receives data from multiple sensors and applies logical analysis to determine the nature of access events. It mediates between the raw sensor data and the final alarm decision, using time-interval analysis and multi-sensor correlation to filter out false alarms from authorized user activity.
2Measurement precision
If multiple sensor types are deployed to improve detection accuracy, then the ability to distinguish authorized vs unauthorized access is improved, but device complexity increases
Solution Approach 1:
The access point monitoring device is designed with multi-functionality, integrating multiple sensor types (motion, presence, shock, environmental) and multiple detection capabilities within a single unified system. The processing circuitry handles various sensor inputs and applies universal analysis algorithms that work across different sensor types, reducing the need for separate dedicated systems for each sensor type.
Solution Approach 2:
The patent combines multiple sensor types and their processing functions into a single integrated access point monitoring device. The motion sensor, presence sensor, shock sensor, and environmental sensors are merged into one system with unified processing circuitry that analyzes all inputs together, simplifying the overall system architecture while maintaining the ability to distinguish between different types of access events.
3Measurement precision
If shock sensors are used to detect breaking events, then the detection of attempted entry is improved, but false alarms may occur from legitimate shock events
Solution Approach 1:
The system uses feedback from multiple sensor types to validate shock sensor events. When a shock is detected, the processing circuitry checks for corroborating evidence from motion sensors, presence sensors, and environmental sensors. This feedback mechanism allows the system to distinguish between legitimate break attempts and false alarm sources such as authorized door opening or normal environmental disturbances.
Solution Approach 2:
The system performs preliminary detection using motion and presence sensors before relying on shock sensor data. By detecting motion and presence in advance, the system can establish a baseline of expected activity patterns. When shock events occur, this preliminary information helps pre-filter false alarms by comparing the shock event against the established pattern of authorized user behavior.
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
Reduces false alarms by accurately distinguishing between authorized and unauthorized access, enhancing the reliability of access point monitoring systems.
Implementation Method 1
The magnetic sensor may be placed on a door or window, and a corresponding magnet may be placed on the door or window frame. Alternatively, the magnetic sensor may be placed on the frame and the magnet may be placed on the door or window.
Implementation Method 2
The shock sensor may be based on, for example, an accelerometer, a piezoelectric sensor or another vibration sensor.
Implementation Method 3
The shock sensor may be based on, for example, an accelerometer, a piezoelectric sensor or another vibration sensor.
Data Source
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AI summary
An apparatus for monitoring an access point of a premises is disclosed comprising processing circuitry 116 configured to receive indications of access point events and first-region events. The indications of access point events are obtained by processing output of an access point sensor 112 configured to detect a state of the access point. The indications of first-region events are obtained by processing output of an environment sensor 114 configured to detect motion and/or presence of a person within a field of view associated with the first region. The processing circuitry 116 is configured to determine a region from which the person caused an access point event based on whether the access point event occurred within a first time interval after a preceding first-region event, and wherein the first time interval is modifiable.