Wireless Alarm Triggering Device Communication Fault Detection
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Solution Overview
Problem
Fire and intrusion detection systems face communication breakdowns due to power or radio link failures, which can prevent alarm triggering devices from alerting monitoring centers, especially in wireless configurations, leading to safety hazards.
Innovation Solution
Implementing a security system with a monitoring station that sends interrogation signals to alarm triggering devices, measuring signal intensity and noise ratio, and using a control processor to detect communication faults, power supply issues, and activate alert mechanisms, while also incorporating a presence detector to conserve energy by signaling only when personnel are present.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used for alarm triggering devices, then ease of installation and device distribution is improved, but reliability of communication and power supply monitoring deteriorates
Solution Approach 1:
The system performs preliminary actions by continuously monitoring communication quality parameters (signal intensity, noise ratio) and power supply status before actual alarm transmission. The control processor detects communication faults and power supply issues in advance, allowing the system to alert personnel and switch to backup modes before complete failure occurs, thus maintaining reliability while preserving wireless installation benefits.
2Reliability
If continuous monitoring of communication quality is implemented, then reliability of alarm transmission is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous monitoring, the system implements periodic monitoring of communication quality parameters and power supply status. The control processor checks these parameters at predetermined intervals, which reduces energy consumption while still maintaining reliable detection of communication faults and power supply issues. This periodic action allows the system to balance monitoring reliability with energy conservation.
3Use of energy by moving object
If presence detector is added to conserve energy, then energy efficiency is improved, but device complexity increases
Solution Approach 1:
The presence detector is integrated into the existing alarm triggering device structure, serving multiple functions: it detects human presence to control alert signaling, monitors communication quality parameters, and manages power supply status. By making the presence detector multi-functional, the system improves energy efficiency while minimizing the increase in device complexity, as the same component contributes to multiple monitoring and control functions.
Data Source
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AI summary
The invention relates to an alarm triggering device for a security system, said alarm triggering device comprising an interface arranged so as to connect the alarm triggering device to a device for managing the security system by means of a wireless connection; triggering means for triggering an alarm in the case of a pre-determined event; supply means for enabling the power supply of the alarm triggering system from a supply source; communication control means for detecting the absence of communication with the management device over a pre-determined period of time; and signaling means for automatically signaling said absence of communication to the alarm triggering device.