Alarm System Automatic Disablement via User Device Sound Detection
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Solution Overview
Problem
Existing alarm systems require manual disablement by users upon entry, and systems relying on local wireless connections may fail if users have switched off or lack WiFi/Bluetooth functionality, leading to unnecessary alerts.
Innovation Solution
An alarm system that registers user devices and transmits notifications to cause them to play specific sounds, disabling alarms if the sounds are detected, using cellular networks for connectivity and varying sounds to prevent spoofing and ensure accurate user presence detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual disablement is required upon entry, then security control is maintained, but user convenience deteriorates
Solution Approach 1:
The system automatically detects user presence via motion sensors and disables the alarm without requiring manual user action. The alarm system serves itself by autonomously determining when to disable based on detected motion, eliminating the need for users to manually enter codes or disable the system.
Solution Approach 2:
The system uses feedback from motion detection to automatically control alarm disablement. When motion is detected, the system receives feedback and automatically disables the alarm, creating a closed-loop system that responds to user presence without manual intervention.
2Ease of operation
If local wireless connections are used for automatic disablement, then ease of operation improves, but reliability deteriorates when users have switched off WiFi/Bluetooth
Solution Approach 1:
The system uses an intermediary communication method (cellular network or alternative wireless communication) that does not depend on the user's device having WiFi or Bluetooth enabled. The alarm system can send disablement commands through this intermediary channel regardless of the user's device settings.
Solution Approach 2:
The system employs a universal communication approach that works regardless of the user's device configuration. By using cellular networks or other alternative communication methods, the system maintains functionality whether the user has WiFi/Bluetooth enabled or not, making the disablement mechanism universally reliable.
3Ease of operation
If simple presence detection is used, then ease of operation improves, but measurement precision deteriorates leading to false alerts
Solution Approach 1:
The system uses feedback from sound detection to verify user presence. After initial motion detection, the system waits for and verifies a specific sound pattern (such as a door code or unique identifier) before disabling the alarm, ensuring the motion detected corresponds to an authorized user.
Solution Approach 2:
The system performs preliminary motion detection to trigger the disablement process, then follows with verification through sound detection. This preliminary action initiates the sequence but requires subsequent verification to confirm legitimate user presence before actually disabling the alarm.
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
Automatically disables alarms when the registered user's sound is detected, preventing false alerts and allowing users to enter without manual disarmament, while ensuring security through distinct sound patterns and cellular connectivity.
Implementation Method 1
receiving a motion detection signal which indicates detection of motion within a region monitored by the alarm system
Implementation Method 2
the notification to the registered user device is transmitted over a cellular network
Implementation Method 3
the notification being such as to cause the registered user device to play a sound
Implementation Method 4
disabling the generation of an alarm in the case that the sound played by the registered user device is detected by the alarm system
Data Source
Figure 1
Figure 2
AI summary
An alarm system (10) stores registration information for a user device (32). A motion detection signal which indicates detection of motion within a region (12) monitored by the alarm system (10) is received by the alarm system (10). A notification (38) is transmitted to the registered user device (32) upon the motion detection signal being received by the alarm system (10). The notification causes the registered user device (32) to play a sound. The generation of an alarm is disabled if the sound played by the registered user device (32) is detected by the alarm system (10).