Barrier Alarm Human Detection for False Alarm Reduction
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Solution Overview
Problem
Security systems frequently experience false alarms due to occupants forgetting that the system is armed, leading to unnecessary responses from authorities and potential fines, as well as startling loud sirens when doors or windows are opened.
Innovation Solution
A barrier alarm device that includes a human detection system to determine if a person is inside the premises when a door or window is opened, allowing a timed alarm signal to be sent instead of an immediate alert, enabling authorized individuals to cancel the security response within a predetermined time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If an immediate alarm signal is transmitted when a barrier is opened, then security response time is improved, but false alarms increase and occupants are startled
Solution Approach 1:
The system performs preliminary detection of human presence inside the premises before transmitting the alarm signal. The human detection device checks whether an occupant is present, and only if no human is detected does the system immediately transmit the alarm signal. This preliminary action distinguishes between authorized occupants opening barriers and unauthorized intruders, reducing false alarms while maintaining rapid response for genuine threats.
2Reliability
If human detection capability is added to the barrier alarm device, then false alarm reduction is improved, but device complexity increases
Solution Approach 1:
The human detection device is merged with the barrier alarm device into a single integrated unit. The processor, memory, barrier status detection device, and human detection device are combined in one device, allowing the system to detect both barrier status changes and human presence simultaneously. This merging reduces the need for separate standalone components while maintaining the ability to distinguish between authorized and unauthorized access.
Solution Approach 2:
The barrier alarm device is designed with multi-functionality, serving both as a barrier monitoring device and a human detection device. The same processor and communication interface handle both barrier status signals and human presence detection signals. This universal design allows one device to perform multiple functions, reducing overall system complexity while improving reliability through integrated false alarm reduction capability.
Data Source
AI summary
A barrier alarm device for reducing the number of false alarms that may occur in a home or business security system. In one embodiment, a barrier alarm device, such as a door or window sensor, determines whether a barrier, such as a door or a window, has been opened, and determines whether a human being is inside a premises in proximity to the door or window. If a human being is inside the monitored premises when the door or window is opened, it indicates that the human being is authorized to be inside the monitored premises, and the barrier alarm device transmits a timed alarm signal to a central security panel, causing a security response to be generated by the central security panel if a predetermined time period elapses without a user canceling the security response.