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工業技術研究院

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技術名稱: LED可見光通訊技術(室內定位應用)

技術簡介

可見光通訊技術(Visible Light Communication System;VLC)可將你我周遭的光源都當成發射訊號的發射器來傳送資料,日常生活中常見的室內外照明光源、顯示器光源、紅綠燈與看板等等,只要是肉眼可見的光源都可以用來當作可見光發射器來傳輸訊號。可見光的波段分布極廣,例如白光或暖白光甚至從紅光至紫光波段等等。一般統稱發光波長在380nm~780nm的光波為可見光,所以可見光可用頻寬極為寬廣,約有320THz。可見光通訊的調變方式也相對簡易,只需將調變過的0或1的信號載在這些波段的光載波中,在接收端再透過光電轉換,將0或1的資料回復並傳遞至終端設備,便可達到可見光通訊目的。

Abstract

Visible light communication technology (VLC) use lighting as the transmitter transmits signals, such as daily life of common indoor and outdoor lighting, display light, traffic lights and billboards and so on, as long as visible light can be used as a transmitter to transmit signals. Visible light Spectral are very wideband, such as from red to violet band. Usually referred to as the emission wavelength of visible light at 380nm ~ 780nm light waves, so the available bandwidth is very wide about 320THz. Visible light communication modulation approach is relatively simple, signal modulation over 0 or 1 are contained in bands of light carrier, at the receiving end and then through the photoelectric conversion, data recovery 0 or 1, and transmitted to the terminal equipment.

技術規格

1.透過手機光學鏡頭接收可見光訊號 -傳輸距離1公尺 -傳輸位元率約8bits -支援iOS和Andriod 作業系統 2.可見光穿戴式裝置 -傳輸距離3~5公尺 -整合可見光感測或RF通訊技術,建構穿戴式裝置模組 -模組功耗約<100mA/ 4V (0.4W) -支援USB充電 3.通訊伺服器平台 -圖資管理介面 -軌跡分析介面 -燈具和裝置管理介面

Technical Specification

1.COMS Image-Based (smart phone) Visible Light Communication system -Transmitter Distance 1 meter -Transmitter Data Rate 8bits -OS Support iOS and Andriod 2.Wearable Based Visible Light Communication system -integration of light sensing or RF module, construction of a wearable device module -Power Supply <100mA/ 4V (0.4W) -Support USB power charge 3.Linux-Based Management Server platform -Indoor Map management interface -trajectory analysis -Lighting and device Monitor

技術特色

本技術開發之可見光室內定位系統,除了照明之外,可即時透過光ID技術精準定位載具或人員位置。

應用範圍

可應用於室內通訊,如: 室內、醫院、賣場、個人室內GPS定位應用場域等等…。

接受技術者具備基礎建議(設備)

通訊系統和照明光學系統。

接受技術者具備基礎建議(專業)

具備基本通訊網路系統和照明系統知識。

技術分類 通訊

聯絡資訊

聯絡人:陳瑛芬(890229) 企劃與推廣組

電話:03-5917281 或 Email:almada@itri.org.tw

客服專線:+886-800-45-8899

傳真:03-5820240

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