LoRa-Connected LED Emergency Light for Automated and Manual Testing
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Solution Overview
Problem
Current LED emergency lights lack networking management and manual testing functions, failing to meet regulatory requirements for emergency operations and system integration design.
Innovation Solution
A non-mobile indoor LED emergency light is designed with a LoRa module circuit, microcontroller circuit, and auxiliary control board, enabling networking system management and manual testing functions through a LoRa gateway, which includes an AC control device, emergency control device, battery, and power input interface, allowing for real-time data transmission and automatic emergency testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If LED emergency lights adopt system integration design for automatic testing, then testing automation is improved, but adaptability to different usage scenarios deteriorates
Solution Approach 1:
The system dynamically switches between automatic testing mode (for regular maintenance) and manual testing mode (for specific usage scenarios). The microcontroller circuit can be configured to operate in different testing modes based on external triggers, allowing the system to adapt its behavior to different operational requirements while maintaining automation capabilities.
2Device complexity
If LED emergency lights lack communication function, then device complexity is reduced, but networking management capability deteriorates
Solution Approach 1:
The LoRa module circuit serves as an intermediary communication component that enables remote management and monitoring of the emergency light system. It transmits status information, test results, and operational data to external systems without requiring complex internal circuitry, thus adding networking capability while keeping the core device relatively simple.
3Device complexity
If LED emergency lights lack manual testing mode, then device complexity is reduced, but testing flexibility deteriorates
Solution Approach 1:
The system provides dynamic testing mode selection through a test button that can trigger different testing sequences. The microcontroller circuit responds to button presses by initiating manual testing procedures, allowing operators to perform tests on-demand with flexible timing and duration while maintaining a simple interface.
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 provides effective networking management and manual testing capabilities, ensuring compliance with regulatory requirements by enabling real-time emergency function testing and result uploading, while also allowing for adjustable testing scenarios based on usage.
Implementation Method 1
The LoRa module circuit is connected to a spring antenna on the auxiliary control board through a communication line to achieve LoRa wireless communication of data and instructions with a LoRa gateway
Implementation Method 2
the battery generates a 3.3 V voltage through the voltage regulator chip of the microcontroller circuit for power supply during emergency operation
Implementation Method 3
during emergency operation, the battery generates a 3.3 V voltage through the voltage regulator chip of the microcontroller circuit for power supply
Data Source
AI summary
A non-mobile indoor light-emitting diode (LED) emergency light in coordination with a long-range (LoRa) gateway includes an alternating-current (AC) control device, an emergency control device, a light source assembly, a battery, an auxiliary control board, and a power input interface, where a transistor circuit controlled by a pin of a chip of a microcontroller circuit is provided between an output terminal of the AC control device and an LED load; during emergency testing, the output terminal of the AC control device is disconnected from the LED load; the light source assembly includes a lampshade, an LED light source module, and a heat sink; the power input interface is formed by lamp caps at two ends, and is configured with the AC control device and the emergency control device; the lampshade and the heat sink are coordinated with the LED light source assembly.