Wireless Smoke Detector With Dutch Weave Filter
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Solution Overview
Problem
Current smoke detectors require complex and costly installations, including three-wire connections and compatibility with UL/ULC standards, and often result in false alarms due to dust and mist accumulation, necessitating a solution that simplifies installation and reduces false alarms while communicating effectively with UL/ULC certified monitoring central stations.
Innovation Solution
A detector with a detection level comprising smoke, carbon monoxide, and temperature sensors, an alarm module, and a communication module that wirelessly communicates with monitoring central stations, featuring multiple active mating connectors for easy installation and a Dutch weave wire cloth filter to reduce false alarms, along with an exhaust fan for purging dust and debris.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If three-wire connection and UL/ULC standards are implemented, then reliability of fire detection is improved, but device complexity and installation difficulty increase
Solution Approach 1:
The patent replaces the traditional mechanical three-wire electrical connection system with a wireless communication system. The detector uses wireless communication modules to transmit alarm signals and data to monitoring central stations, eliminating the need for complex electrical wiring while maintaining reliable fire detection functionality. This substitution resolves the contradiction by removing installation complexity while preserving detection reliability.
Solution Approach 2:
The patent introduces wireless communication modules and protocol translators as intermediary devices that enable detectors to communicate with monitoring central stations without direct electrical wiring. These intermediaries handle the communication protocols and data transmission, allowing the detector to meet UL/ULC reliability standards while avoiding complex installation requirements.
2Reliability
If AC powered interconnected smoke detectors are installed, then fire detection coverage is improved, but installation cost and time increase
Solution Approach 1:
The patent replaces AC-powered electrical interconnected detectors with battery-powered wireless detectors. The wireless communication capability allows detectors to interconnect and communicate alarm signals without electrical wiring, dramatically reducing installation time from hours to minutes while maintaining comprehensive fire detection coverage across multiple locations.
Solution Approach 2:
The patent creates a universal detector design that can operate independently or in interconnected networks without requiring different installation approaches. The wireless multi-functional detector can serve as both a standalone alarm device and part of an interconnected system, eliminating the need for electrician intervention and reducing installation time while maintaining extensive detection coverage.
3Reliability
If Dutch weave wire cloth filter is added, then false alarms are reduced, but device complexity increases
Solution Approach 1:
The patent incorporates Dutch weave wire cloth filters within the detector housing to physically block dust and mist particles from entering the detection chamber. This porous material allows air and smoke particles to pass through while filtering out larger contaminants that cause false alarms, improving alarm accuracy without significantly increasing overall device complexity.
Solution Approach 2:
The patent converts the harmful effect of dust and mist accumulation (which causes false alarms) into a benefit by using the Dutch weave wire cloth filter to trap these particles before they reach the sensors. The filter transforms the problem of contaminant interference into a solution where contaminants are captured and prevented from causing false alarm conditions.
4Ease of operation
If communication module is added for wireless communication, then ease of installation is improved, but reliability of communication may worsen
Solution Approach 1:
The patent implements communication redundancy by incorporating multiple communication pathways and backup mechanisms. The detector can switch between different wireless communication protocols and methods, providing prior cushioning against communication failures. This ensures that while installation remains simple and wireless, the communication reliability is maintained through pre-planned backup systems.
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
The solution enables straightforward installation without electrician intervention, reduces false alarms through efficient filtration and purging, and ensures reliable communication with UL/ULC certified monitoring central stations, enhancing safety and reducing operational costs.
Implementation Method 1
a Dutch weave wire cloth filter to reduce false alarms
Implementation Method 2
an exhaust fan for purging dust and debris
Data Source
AI summary
The present detector comprises a detection level and an electronic level. The detection level comprises at least one of a smoke detection sensor, a carbon monoxide sensor and a temperature sensor. The at least one smoke detection sensor, carbon monoxide sensor and temperature sensor generate a detected measure. The electronic level includes an alarm module, a communication module and a processor. The alarm module generates at least one of an audible alarm signal or a visual alarm signal. The communication module wirelessly communicates with a monitoring central station. The processor receives the detected measure, compares the detected measure with a predetermined threshold, actuates the alarm module when the detected measure is above the predetermined threshold and generates a message to be wirelessly communicated to the monitoring central station by the communication module, the message including the detected measure and a unique identifier of the detector.