Capacitor Voltage-Based Lighting Control for Battery Temperature and Timing
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Solution Overview
Problem
Existing lighting apparatuses face challenges in managing temperature rise due to battery charging, which can interfere with light emission at desired timings, and existing solutions do not adequately address battery temperature control.
Innovation Solution
A lighting apparatus with a processor-controlled charging unit that monitors capacitor voltage, using gradient determination processing to adjust charging times based on battery type and state, thereby controlling light emission operations to prevent excessive temperature rise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the charging operation is excessively suppressed to suppress battery temperature rise, then battery temperature is controlled, but light emission cannot be performed at desired photographing timing
Solution Approach 1:
The patent applies dynamics by making the charging control adaptive and variable rather than fixed. The control unit dynamically adjusts charging suppression based on real-time detection of battery temperature and capacitor voltage states. This allows the system to transition between different charging strategies (suppress charging when battery is hot, allow charging when battery is cool) based on current conditions, resolving the contradiction between temperature control and light emission reliability.
Solution Approach 2:
The patent implements feedback control by continuously detecting battery temperature and capacitor voltage, then using this information to adjust charging operations. The control unit receives feedback from temperature sensors and voltage detectors, processes this information, and modifies charging behavior accordingly. This closed-loop feedback mechanism ensures that charging is suppressed only when necessary for temperature control while maintaining light emission capability when conditions permit.
2Reliability
If charging is continuously performed to ensure light emission readiness, then light emission timing is reliable, but battery temperature rises excessively
Solution Approach 1:
The patent applies periodic action by implementing intermittent charging cycles rather than continuous charging. The control unit periodically assesses battery temperature and capacitor voltage levels, then decides whether to perform charging operations. This periodic monitoring and selective charging approach allows the system to maintain light emission readiness while providing cooling intervals that prevent excessive battery temperature rise.
Solution Approach 2:
The patent applies partial action by performing charging only to the extent necessary for light emission readiness rather than continuously maximizing charge levels. The control unit determines the minimum required charging based on capacitor voltage thresholds and timing requirements, then performs only that necessary charging while suppressing excess charging that would cause unnecessary temperature rise. This partial charging strategy maintains reliability while reducing thermal load.
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
Effectively manages battery temperature by adjusting charging times, ensuring reliable light emission without unnecessary restrictions, and reducing individual device variations.
Implementation Method 1
since the battery has an internal resistance, the battery generates heat when the capacitor is charged by the battery, causing the temperature of the battery to rise
Data Source
AI summary
A lighting apparatus includes a light source, a capacitor that stores energy, which causes the light source to emit light, at least one processor, and a memory coupled to the processor storing instructions that, when executed by the processor, cause the processor to function as a charging unit that charges the capacitor with a battery, a detecting unit that detects a voltage of the capacitor, and a control unit that controls a light emission operation of the light source based on a change amount of the voltage of the capacitor.