Dual-Capacitor Power Supply for Synchronized Notification Systems
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Solution Overview
Problem
Fire alarm and mass notification systems face synchronization issues due to variations in latency between the initial rising edge of power and synchronization reset, leading to potential disorientation and confusion, especially during power interruptions.
Innovation Solution
A power supply system with a dual energy storage capacity, comprising a small capacitor for quick charging and reducing latency, and a larger capacitor for extended power interruptions, where the larger capacitor is charged after the small capacitor reaches a predefined level, ensuring synchronized operation of notification appliances like horns and strobes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a single large capacitor is used for power storage, then the duration of power supply during interruptions is extended, but the charging time increases and synchronization latency is worsened
Solution Approach 1:
The power supply system is segmented into two distinct capacitors: a first capacitor (C1) for rapid charging and low-latency synchronization, and a second capacitor (C2) for extended power supply duration. This segmentation allows each capacitor to be optimized for its specific function, resolving the contradiction between fast response and long duration.
Solution Approach 2:
The first capacitor C1 is charged in advance during normal operation to a voltage close to the system voltage, so that it can immediately provide power upon interruption without requiring long charging time. This preliminary charging action enables the system to achieve both fast synchronization response and extended power supply duration.
2Loss of time
If a small capacitor is used for quick charging, then synchronization latency is reduced, but the duration of power supply during interruptions is insufficient
Solution Approach 1:
The power supply system is segmented into two distinct capacitors: a first capacitor (C1) for rapid charging and low-latency synchronization, and a second capacitor (C2) for extended power supply duration. This segmentation allows each capacitor to be optimized for its specific function, resolving the contradiction between fast response and long duration.
Solution Approach 2:
The two capacitors C1 and C2 are merged in parallel within the same power supply circuit, with C1 handling rapid charge/discharge for synchronization and C2 providing extended energy reservoir. Their combined operation achieves both fast response and long duration power supply that neither could achieve alone.
3Reliability
If dual capacitors are used with different capacities, then both latency and duration requirements are met, but the device complexity increases
Solution Approach 1:
Both capacitors C1 and C2 operate within the same universal power supply circuit framework, sharing common control logic and voltage regulation. This multi-functionality approach allows the system to achieve precise synchronization and extended duration without proportionally increasing overall system complexity.
Solution Approach 2:
The control circuit automatically manages the dual-capacitor system by monitoring voltage levels and controlling charge/discharge operations without external intervention. The system self-regulates the interaction between C1 and C2, reducing the operational complexity despite the increased structural complexity of having two capacitors.
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
This solution reduces synchronization latency and ensures continued operation during power interruptions by using a dual-capacitor system, allowing for precise timing and reduced cost through efficient energy storage and charging strategies.
Implementation Method 1
A first energy store (capacitor) having a first energy storage capacity, a processor powered by energy from the first energy store, and a second energy store (capacitor) having a second energy storage capacity greater than the first energy storage capacity
Data Source
AI summary
A power supply for a synchronized appliance is disclosed and includes a first energy store having a first energy storage capacity, a processor powered by energy from the first energy store, and a second energy store having a second energy storage capacity greater than the first energy storage capacity. The processor initiates charging of the second energy store after a delay beginning at a time of receipt of a charge of predefined level from the first energy store.