Smart Lighting Evacuation Guidance via Optical Base Stations
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Solution Overview
Problem
Existing evacuation guidance systems are limited by high investment costs and difficulty in accurately reflecting disaster site conditions, restricting their usage and effectiveness.
Innovation Solution
A hybrid optical/RF wireless communication system that uses smart lightings to collect environment information, detect disasters, and control optical base stations to guide users through safe evacuation routes without dedicated facilities, by altering light colors and modulation degrees based on disaster location proximity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated evacuation guidance facilities are deployed, then evacuation guidance reliability is improved, but system cost and device complexity increase
Solution Approach 1:
The patent applies multi-functionality by enabling existing smart lighting facilities to serve dual purposes: normal illumination during peacetime and evacuation guidance during disasters. The lighting system integrates environment sensing, disaster detection, and dynamic light color control to provide evacuation routing functions, eliminating the need for dedicated evacuation guidance infrastructure while maintaining reliability through the use of already-deployed facilities.
2Quantity of substance
If existing smart lightings are used for evacuation guidance, then investment cost is reduced, but the ability to reflect real-time disaster site conditions is limited
Solution Approach 1:
The patent implements feedback mechanisms where lighting facilities continuously collect environment information (temperature, humidity, smoke concentration, etc.) and receive disaster information from external sources. This feedback loop enables the system to dynamically adjust light colors and guidance routes in real-time based on actual disaster conditions, transforming static lighting infrastructure into an adaptive evacuation guidance system that reflects real-time site conditions.
Solution Approach 2:
The system transitions from static lighting to dynamic evacuation guidance by enabling real-time adjustment of light colors, intensities, and guidance routes based on changing disaster conditions. The lighting facilities dynamically modify their behavior according to environment information and disaster location data, allowing the same infrastructure to adapt to various disaster scenarios and provide accurate real-time guidance.
3Loss of information
If optical base stations alter light colors to indicate disaster proximity, then evacuation information clarity is improved, but energy consumption increases
Solution Approach 1:
The patent applies local quality by having different lighting facilities display different light colors based on their specific location relative to the disaster site. Facilities closer to the disaster emit colors indicating high danger (e.g., red), while those farther away emit colors indicating lower danger (e.g., yellow or green). This localized differentiation provides clear spatial evacuation information without requiring all facilities to operate at maximum energy consumption levels.
Data Source
AI summary
An object of the present disclosure is to inform a user of a safe evacuation guidance route in real time using smart lightings without deploying dedicated evacuation guidance facilities.The present disclosure is a wireless communication system including: one or more wireless base stations that wirelessly communicate with a terminal; a plurality of optical base stations that transmit an optical signal to the terminal; and a base station control device that controls the optical signal transmitted by the optical base stations, wherein the base station control device collects environment information around the optical base stations, detects a disaster around the optical base stations using the collected environment information, and when detecting a disaster, causes the optical base station installed at a position close to a disaster occurrence location and the optical base station installed at a position far from the disaster occurrence location to output light of different colors.