1309927 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於一種藉由光線發送資訊的廣播系統，及 使用此種廣播系統所適用的電燈泡。 【先前技術】 近幾年來，隨著手提終端等的普及化使得使用電波的 通信系統成爲切身者。在最近隨著頻率的缺乏之同時，又 也盛行短波長的紅外線等的利用。但是，電波是除了頻率 的缺乏以外，確認了對於醫療機器或各種精密機器的影響 ，又對於紅外線也顧慮到對於人體的影響（例如眼睛安全 等）。所以，作爲可安全地通信的方法著重在利用光線的 通信。 又作爲通信系統的一種，電力線通信系統被硏究。該 電力線通信系統是將舖設在房屋或大樓，並供電的電力線 ，直接使用作爲信號傳輸媒體，進行傳輸資訊者。電力線 是普及率極高的基礎架構，基本上可進行以電力線所連結 的機器間的.通信。但是與例如手提終端等地未以電力線所 連結的機器之間的通信是無法進行。 另一方面，藉由藍色LED的開發而實現了白色LED 。白色LED是與習知的白熱電燈炮或螢光燈等相比較， 具有耗電特別少，又小型且壽命長的特徵。因此考慮將該 白色LED利用作爲照明光源。白色LED是又具有對於所 輸入的電力響應速度快速的特徵。著重於該特徵，進行著 -4 - (2) 1309927 藉電性控制點滅或光量而具有信號傳輸功能的硏究。 也進行著融合使用此種白色LED的光線所產生的信 號傳輸功能，及如上述的電力線通信系統的硏究。發明人 等在如非專利文獻〔小峯敏彥，田中裕一，中川正雄 ，「白色LED照明信號傳輸與電力線信號傳輸的融合系 統」，電子情報通信學會技術硏究報告，社團法人電子情 報通信學會，20002 年 3 月 12 日，Vol. 101，No.726, pp.99 一 1 〇4〕中有提案。在此種系統中，因使用光線而對於人 體沒有影響。又因使用電力線，而基礎架構是已被整備， 並不需要配線的舖設工程等，而可低成本地構築系統。而 且若具有受光手段，則如手提終端等未連接電力線也可進 行通信。又，藉由電力線上的信號僅直接控制白色LED 的點滅或光量，就可將資訊作爲光線放出之故，因而具有 藉由極簡單的構成就可實現的優點。 但是在記載於上述非專利文獻的系統，主要僅限制在 實驗性地進行一對一的通信，而被期待著更廣泛的應用。 【發明內容】 本發明是鑑於上述的事項而創作者，其目的是在於提 供一種藉由使用電力線信號傳輸與led的照明光信號傳 輸’發送多數資訊的廣播系統，同時提供一種在此種廣播 系統的照明用電燈泡。 本發明的一種廣播系統’其特徵爲具有：用以照明的 LED光源’及用以將電力供給於該LED光源的電力線， (3) 1309927 及在該電力線調變複數資訊並多重化而與電力波形重疊進 行發送的資訊調變手段，及從電力線上的經調變的複數資 訊選擇性地分離一至複數並控制上述LED光源的光量或 點滅的濾波器手段；藉由上述LED光源的光量變化或點 滅來發送資訊。 如此地在本發明中，在電力線上加上複數資訊並進行 傳輸。如此，例如作爲濾波器手段，設置用以選擇資訊的 選擇手段，藉由所選擇的資訊來控制LED光源的光量或 點滅，就可藉由光線選擇性地從該LED光源廣播資訊。 資訊的選擇是除了藉由物理性開關等進行之外，依照電力 線上的指示資訊進行選擇，或是在接收側裝置中構成進行 資訊的選擇也可以。 更具體地，在資訊調變手段中藉由頻率分割的重化複 數資訊並送出至電力線，在濾波器手段設置各該頻率頻帶 不相的複數帶通濾波器，可構成選擇其一種而能分離資訊 。或是在資訊調變手段中藉由時分割多重化複數資訊之同 時將標記資訊附加於所分割的資訊並送出至電力線，在濾 波器手段中，可構成藉由標記資訊來識別資訊並選擇性地 分離資訊。 又本發明是使用於這種廣播系統，屬於藉由所供給的 電力進行發光並照明的電燈泡，其特徵爲具有：用以照明 的LED光源，及從重疊於所供給的電力的經調變的複數 資訊選擇性地分離一至複數並控制L E D光源的光量或黑占 滅的濾波器手段。一般所利用的電力是交流，而在交流電 -6- (4) 1309927 力使用時設置將交流變換成直流的AC/DC變換手段，構 成將在濾波器手段所分離的資訊成分重疊在藉由AC/DC 變換手段所變換的直流電力而驅動led光源較理想。將 此種電燈泡，僅代用在一般所使用的電燈泡，就可藉由光 線發送電力線上的資訊。因此，不必進行照明器具的變更 等工程’直接使用原來的照明器具就可實現藉由光線的資 訊發送。 【實施方式】 第1圖是表示本發明的廣播系統的第一實施形態的方 塊圖。圖中，1是資訊源，2是電力線調變器，3是電力 線，4，5是萬能插口，6是L ED照明器具，7是受光終端 ’ 11是AC/DC變換部，12是帶通濾波器，13是選擇部 ，14是重疊部，15是LED群。資訊源1是除了電腦之外 ，還可藉由TV或CATV，收音機，有線廣播等的調諧機 或接收機等，輸出各種資訊的機器所構成。因此，作爲廣 播的資訊，爲影像或音樂，聲音，畫像，文字資料等各種 資訊也可以。廣播的資訊是一至複數的可以，在這裏作成 輸出複數資訊者。 電力線調變器2是調變從資訊源1所輸出的一至複數 資訊並多重化，重疊在電力波形後送出至電力線3。又， 在通常的電力線通信，爲了實現雙方向的通信大都也具有 解調手段的情形，惟在廣播系統中，爲一方向的通信之故 ，因而不需要解調手段。又，在該例子，作爲資訊的多重 (5) 1309927 化方法的一例，藉由頻率分割進行多重化。 電力線3是一般舖設在屋內，屋外的電線。該電力線 3是可使用既存者。又，爲了從電力線3接受電力供給， 在壁面等設有萬能插口 4，5等。該萬能插口 4’ 5也可使 用既存者。在表示於第I圖的例子，是作成在萬能插口 4 插入電力線調變器2，又在萬能插口 5插入LED照明器具 6所使用者。當然，電力線3及萬能插口 4，5均新設也 可以。又，在該例子，作爲電力供應有使用作爲一般商用 電力的交流電力者。 L E D照明器具6是連接於電力線3而用以照明附近所 用的照明器具。例如爲室內則設在天花板等。除此之外， 也可以爲點照明等各種用途的照明器具。在該例中，LED 照明器具6是包括AC/DC變換部1 1 ’帶通濾波器12，選 擇部1 3，重疊部14，LED群1 5等所構成。 AC/DC變換部11是爲了發光LED群1 5必須藉由直 流電力來驅動，將從電力線3所供給的交流電力變換成直 流者。作爲A C / D C變換部1 1可使用既存的技術。又，配 合LED群15的動作電壓，也進行電壓調整。又，如上述 地重疊有在電力線3經調變的資訊波形之故，因而期望例 如藉由平順電路等在直流波形儘量不會出現資訊波形。 帶通濾波器12是設置成用以抽出重疊於電力線3上 的資訊信號。如上述地，在該例子’各該資訊是藉由頻率 分割被多重化之故，因而藉由僅通過特定頻率的帶通濾波 器]2，可從複數資訊中選擇性地分離一個資訊。表示於 (6) 1309927 第1圖的例子，表示並聯地設置所通過的頻率不相同的複 數帶通濾波器的例子。或是也可藉由可變更通過的頻率頻 帶的帶通濾波器所構成。又’對於分離的資訊波形’增加 偏壓，或施以整形或放大等均可以。 選擇部1 3是選擇設於帶通濾波器1 2的複數濾波器中 所使用的一至複數濾波器，由此選擇以光線所發送的資訊 。選擇是除了以手動進行之外’構成選擇性地解調作爲某 一特定頻率所傳送的控制信號’並藉由該控制信號進行濾 波器的選擇等’藉由其他方法構成選擇也可以。或是構成 使用可變更通過帶通濾波器12的頻率’而選擇部13設定 對應於發送至帶通濾波器12的資訊的頻率也可以。在第 1圖中將選擇部1 3設在帶通濾波器1 2的前段’惟設在後 段也可以。又，在可變更帶通濾波器〗2所通過的頻率頻 帶的構成時，作爲選擇部13隨著特定頻率的控制信號對 於帶通濾波器12設定頻率頻帶的構成也可以。又’作爲 LED照明器具6在僅能發送以固定頻率所傳輸的資訊者時 ，則未設置選擇部13，具備作爲帶通濾波器12通過固定 的頻率頻帶者也可以。 重疊部1 4是將在帶通濾波器1 2所抽出的資訊的信號 重疊在AC/DC變換部11變換成直流的電力波形。由此可 藉由資訊的信號變更施加於LED群1 5的電壓，並可控制 LED群15的光量或點滅。例如在點滅LED群15時，構 成藉由來自帶通濾波器12的信號來導通/斷開控制來自 AC/DC變換部1 1的電力也可以。 (7) 1309927 LED群1 5是基本上進行照明所用的 以多數的白色LED等所構成。當然集. LED的構成也同樣。該led群15是藉白 給予的電力被驅動而進行發光。led是響 ’因而藉由資訊的信號來變更光量，或是 以用光線來發送資訊。這時候，即使高速 以點滅’均未受到人的眼睛的察覺之故， 然可加以利用。 受光終端7是具有受光手段，受光從 所照射的光線而抽出資訊的信號，經解調 。受光終端7是只要具有受光手段，任何 個人電腦或手提終端，手提電話等之外， 聲頻機器，電視機等的顯示機器等，各種 以下，簡單地說明本發明的廣播系統 的動作的一例子。作爲資訊源1，準備廣 例如除了來自電腦的資料之外，還有τν 機，有線廣播等，視用途準備各種資訊。 從資訊源1所輸出的一至複數資訊是 2被調變，經多重化而重疊於電力波形， 。第2圖是表示電線上的信號波形的一例 例中，使用商用的交流電源（5〇Hz/6〇Hz 波形上重疊資訊的信號波形的例子。爲了 器的影響，資訊的信號波形是重疊小於電 在表示於第2(B)圖的放大圖’表示以 LED光源，例如 合紅、藍、綠的 3從重疊部1 4所 應特性優異之故 藉由點滅，就可 地變更光量或施 因而作爲照明仍 LED照明器具6 接受資訊的終端 裝置均可以，如 設置受光手段的 機器均可以。 的第一實施形態 播的各種內容。 或CATV，收音 在電力線調變器 傳輸至電力線3 的說明圖。在此 )，表示在電力 避免對於其他機 力波形的波形。 BPSK等方式調 -10 - (8) 1309927 變資訊的並與電力波形重疊的例子。又’電力線3是可以 利用既存的電線。又，從萬用插口取得電力的同時分離資 訊加以使用，可進行提供與一般被利用的電力線通信同樣 的資訊。 經電力線3，電力及資訊從萬用插口 5被傳送至LED 照明器具6。在LED照明器具6，從萬用插口 5得到裝載 信號波形的電力。又，在一方面，在AC/DC變換部1 1整 流成用以驅動LED群15的直流電力並傳送至重疊部14。 又，在另一方面，使用藉由選擇部13所選擇的帶通濾波 器1 2內的濾波器僅取出所定頻率成分。這時候，視需要 施加偏壓，或進行波形的整形或放大等較理想。 如此地以重疊部14合成在AC/DC變換成直流的電力 波形，及在帶通濾波器1 2所抽出的資訊的信號並施加於 LED群1 5。施加於LED群15的電壓，是隨著合成的資訊 的信號波形而變化。由此成爲使得LED群15的發光量隨 著資訊的信號波形有所變化，而可發送資訊。 藉由設在受光終端7側的受光元件來受光從該LED 群15所放出的光線。又，藉由抽出受光的光量變化並加 以解調，則在受光終端7可取得資訊。如此地，從資訊源 1所提供的資訊中，在LED照明器具6中所選擇的資訊與 照明光一起被送出，成爲在受光終端7中被接收的情形。 這時候，受光終端7的受光部並不與LED照明器具6 ( L E D群1 5 )正確地相對向也可以，可受光某一程度的照 明光，就可藉由良好的通信品質取得資訊的信號。此爲 -11 - (9) 1309927 LED照明光使用於照明所用者之故，因而外觀上的發送電 力極大所導致者。藉由以往就被使用的紅外線以同樣的信 號強度發送信號時’無法避免對於人體（例如眼睛）的影 響，在此種意思上’依光線的資訊傳輸是也具有優點。 又，在這裏僅表示一具LED照明器具6，惟例如在附 近配置複數LED照明器具6時，藉由選擇相同資訊進行 廣播，成爲對於陰影變強，又對於移動也可對應。相反地 即使在附近存在選擇其他資訊進行廣播的LED照明器具6 ，若在一具LED照明器具6附近接收，則來自其他的 LED照明器具6的光線會衰減而影響變小。又，在與此種 其他的LED照明器具的干涉成爲問題時，在調變來自資 訊源1的資訊之際，使用干涉強的調變方式，例如OOK —RZ ( On-Off Keying, Return-to-Zero )或 OFDM ( Orthogonal Frequency Division Multiplexing )等進行調變 就可以。 又，在表示於第〗圖的例子說明了將A C/DC變換部 11或帶通濾波器12等設在LED照明器具6內者。但是並 不被限定於此，例如在照明的切換用的壁面開關等設置此 些電路，而從壁面開關一直到LED照明器具6止的電力 線部分構成供給重疊有資訊的波形的直流也可以。這時候 ，成爲選擇部1 3的開關也與照明切換用的開關一起可設 在壁面。當然，對於各部的配置並不被限定於此些例子而 爲任意者。 第3圖是表示本發明的廣播系統的第二實施形態的方 -12 - 1309927 (10) 塊圖。圖中，在與第1圖同樣部分賦予相同記號而省略說 明1 6是帶通濾波器，1 7是判定部，1 8是選擇部。在該例 中，在每一 LED照明器具6或每一資訊分配固定的識別 資訊（IP，PN碼）等，藉由識別資訊比較，僅選擇特定 資訊進行廣播者。 電力線調變器2是在這裏將來自資訊源1的複數資訊 分割成小包，而在前頭賦予信頭並藉由時分割多重而重疊 在電力波形。在信頭包含識別資訊。 在LED照明器具6，與LED群15及AC/DC變換部 1 1 一起包括帶通濾波器1 6，判定部1 7，選擇部1 8等所 構成。帶通濾波器16是除去電力的交流成分而分離資訊 的信號成分者。在此例中，有關於複數資訊，所有信號都 通過帶通濾波器16。 判定部17是從在帶通濾波器16被分離的資訊的信號 中抽出信頭部分，與事先所設定的識別資訊相比較，判定 所傳送的資訊是否藉由光線來發送者。又，若爲須發送者 時，則對於選擇部1 〇選擇資訊部的信號後輸出至重疊部 14。通過選擇部 18的信號’是在重疊部中與在 AC/DC變換部11被變換成直流的電力波形重疊，並供給 至LED群15。以後與上述第一實施形態同樣地，LED群 1 5是藉由資訊的信號使得光量變化’或使得點滅被控制 ，進行依光線的資訊的傳送。又’藉由LED群15的發光 來進行照明。 在該第二實施形態中’例如在每一 LED照明器具6 -13- (11) 1309927 分配識別資訊，則在將資訊送出至電力線3的一邊， 制每一LED照明器具6所廣播的資訊。又，藉由構 設定識別資訊，成爲可選擇從各該LED照明器具6 播的資訊。這時候，可將識別資訊設定複數，也可構 擇複數資訊而藉由光線進行送出。 在該第二實施形態，也與上述的第一實施形態同 ，可得到各種態式。又，對於其優點也與上述第一實 態同樣。 除了這些實施形態之外，對於以照明光所發送的 並不進行選擇，而藉由光線發送經電力線所傳送的所 訊，以接收的終端側構成選擇資訊也可以。 第4圖是表示本發明的可適用於廣播系統的電燈 實施形態的槪念圖。圖中，21是電燈泡，2 2是燈頭 是燈座，表示於第4圖的例子是可適用作爲上述廣播 的各實施形態的LED照明器具6的一部分者。作爲 器具以往就裝設白熱電燈泡加以利用者一般被使用。 花板等事先設有燈座23，如第4(B)圖地在燈座23 扭進電燈泡2 1的燈頭22得到電性連接。在此例中， 電力線3或燈座23止的配線部分，仍然利用既存設 如第4 ( A )圖所示地，在電燈泡2 1內收容在上述第 第二實施形態所表示的LED照明器具6內的構成。 可收容在電燈泡21的燈頭22部分。又，與使用如以 白熱電燈泡的燈絲的點光源不相同，將多數LED配 面狀之'故，因而在其背面可收容電路部分。 可控 成可 所廣 成選 樣地 施形 資訊 有資 泡的 ，23 系統 照明 在天 藉由 對於 備， —或 例如 往的 置成 -14 - (12) 1309927 藉由使用此種電燈泡，將一般的白熱電燈泡僅更換成 本發明的電燈泡2 1，可將電燈泡2 1使用作爲依光線的資 訊的發送源。 當然’以往就使用的各種電燈泡的形狀，是在如第4 圖所示的形狀以外，也使用各種形狀者。對於本發明的電 燈泡2 1的形狀也並不被限定於如第4圖所示的形狀，可 構成任意形狀。例如也可構成如螢光燈地將LED直線狀 地排列的形狀的電燈泡2 1。 以下’說明本發明的廣播系統的幾種應用例。第5圖 是表示本發明的第一應用例的說明圖。圖中，31是LED 照明器具’ 3 2是作品，3 3是受光終端。表示於第5圖的 例子’是表示將本發明的廣播系統適用在美術館或博物館 等的一例子。在美術館或博物館等，每一作品或展示物（ 以下稱爲作品32 )地施以如聚光燈的照明，又進行賦予 作品3 2的說明。作爲照明該作品3 2的照明器具，使用本 發明的LED照明器具3丨。一方面，在將電力供給至LED 照明器具3 1的電力線3，重疊作品3 2的說明資訊並送出 。又’在每一各作品3 2所設置的LED照明器具3 1中， 選擇性地抽出對於各該作品的說明資訊，如上述地藉由控 制照明光的光量或點滅就可藉由光線送出說明資訊。 鑑賞者是在作品3 2前取出受光終端3 3，則光線照射 在受光終端3 3 ’取出該光量變化或點滅並藉由進行解調 ’就可參照該作品3 2的說明資訊。又，當鑑賞者移動至 下一作品的前面’則該作品的說明資訊藉由照明該作品的 -15- (13) 1309927 光線所傳送，若參照受光終端3 3，就可參照該作品的說 明資訊。 如此地，將每一各作品3 2的說明資訊電力波形地重 疊於電力線3並送出，而在照明各作品的LED照明器具 3 1中，選擇對應的作品3 2的說明資訊而藉由光線進行送 出，就可將各作品3 2的說明資訊與作品3 2的照明一起提 示給鑑賞者。 每一各作品的說明資訊是並不被限定於二種。例如每 一各作品地提供一種依複數語言的說明資訊時，在LED 照明器具3 1中，選擇對應於照明的作品的複數說明資訊 而藉由光線進行送出。又，在受光終端3 3側，分別分離 藉由光線所送出的複數說明資訊並解調，由其中選擇鑑賞 者所指定的語言的說明資訊而就可提示給鑑賞者。或是， 構成成人用的說明資訊與小孩用的說明資訊等，對於一個 作品3 2藉由光線從相同LED照明器具3 1送出複數說明 資訊也可以。又，說明資訊是並不被限定於文字資訊，例 如聲音資訊也可以，或畫線或動畫等也可以。又，適當地 組合這些的資訊也可以。 第6圖是表示本發明的第二應用例的說明圖。圖中， 41是LED照明器具，42，43是座椅，44是受光終端。該 第二應用例是表示將本發明的廣播系統適用在飛機或電車 或大客車等的例子。在表示於第6圖的例子中，每一各座 椅地設置LED照明器具4 1 ’進行各該座椅的照明。與其 同時地，藉由光線送出經電力線3所傳送的資訊。又，在 -16- (14) 1309927 前方的座椅42背面設有受光終端44 ’成爲坐在座椅43 上的乘客可參照受光終端4 4的畫面。受光終端4 4受光從 LED照明器具4 1所照射的光線’而藉由受光終端4 4取得 藉由該光線所送出的資訊。乘客是藉由操作受光終端44 ，選擇所期望的資訊，而可進行視聽。 特別是在包括太空船等飛機中’顧慮到對於計器等的 影響而必須避免機內的電波使用。但是若爲光線’就沒有 對於計器等的影響，又對於人體也沒有影響。因此’如第 6圖所示地，藉由無線就可進行資訊的配信。又’資訊的 選擇是在LED照明器具41進行之外’在受光終端44之 一邊進行也可以。 又，在飛機或電車’大客車等中’作爲照明所用的電 力大都使用直流。因此，不必設置表示於第1圖或第3圖 的構成中的AC/DC變換部1 1。例如藉光線送出經電力線 3所傳送的所有資訊時，也不要帶通濾波器1 2或重疊部 1 4等，藉由從電力線3所供給的資訊的波形所重疊的電 力仍然驅動LED群，藉由光線可送出資訊。 以上，在這裏對於本發明的廣播系統表示兩個應用例 。但是並不被限定於此些的應用例者，藉由光線可適用在 配信資訊的所有用途。例如在一般的辦公室等，除了使用 作爲對於桌子上的個人電腦的配信系統之外，也可使用在 工廠內對於各工序的資訊傳輸等。又，也可進行在家庭內 的電視機或收音機廣播的配信，藉由可搬運型顯示器在任 意房屋內可視聽。這時候，將相當於調諧器的選擇部設在 -17 - (15) 1309927 LED照明器具內’構成藉由在電視機控制器等彳 照明器具內的選擇部可進行選台。又，例如進行 型運動場或事件會場等將有關於進行體育或市場 訊或其他會場的資訊等重疊於照明光並進行送出 成以觀眾所具有的手提終端等受光並取得資訊。 (發明的效果） 由以上說明可知’依照本發明，仍然利用照 設備，藉由光線可配信多數資訊。這時候，如以 需要另外設置發送裝置，或是也不需要重設舖設 等。因此，以低成本就可構築廣播系統。又，也 外線地對於眼睛安全等的人體的影響，或是如電 不會被限制對於飛機等的應用，具有可構築安全 統。 【圖式簡單說明】 第1圖是表示本發明的廣播系統的第一實施 塊圖。 第2圖是表示電力線上的信號波形的一例的 第3圖是表示本發明的廣播系統的第二實施 塊圖。 第4圖是表示可適用於本發明的廣播系統的 實施一形態的槪念圖。 第5圖是表示本發明的第一應用例的說明圖 空制 LED 體育的大 的各種資 ，也可構 明所用的 往地也不 通信電纜 沒有如紅 波地，也 的廣播系 形態的方 說明圖。 形態的方 電燈泡的 -18 - (16) (16)1309927 第6圖是表示本發明的第二應用例的說明圖 (記號的說明） 1 資訊源 2 :電力線調變器 3 :電力線 4，5 :萬能插口 6 : LED照明器具 7 :受光終端 1 1 : A C / D C變換部 1 2 :帶通濾波器 1 3 :選擇部 1 4 :重疊部 15: L E D 部 1 6 :帶通濾波器 1 7 :判定部 1 8 :選擇部 2 1 :電燈泡 2 2 :燈頭 2 3 :燈座 31 : LED照明器具 3 2 :作品 3 3 :受光終端 41 : LED照明器具 -19 - 1309927 (17) 42 ， 43 :座椅 44 :受光終端1309927 (1) Description of the Invention [Technical Field] The present invention relates to a broadcasting system for transmitting information by light, and an electric light bulb to which the broadcasting system is applied. [Prior Art] In recent years, with the popularization of portable terminals and the like, communication systems using radio waves have become the target. Recently, with the lack of frequency, the use of short-wavelength infrared rays and the like has also prevailed. However, in addition to the lack of frequency, radio waves confirm the influence on medical equipment or various precision machines, and also affect the human body (such as eye safety) for infrared rays. Therefore, as a method of secure communication, emphasis is placed on communication using light. As a kind of communication system, the power line communication system is studied. The power line communication system is a power line that will be laid in a house or a building and powered, and used directly as a signal transmission medium to transmit information. The power line is an extremely popular infrastructure that basically allows communication between machines connected by power lines. However, communication with a machine that is not connected to a power line, such as a portable terminal, cannot be performed. On the other hand, white LEDs have been realized by the development of blue LEDs. The white LED is characterized by being particularly low in power consumption, small in size, and long in life, as compared with conventional white thermal bulbs or fluorescent lamps. Therefore, it is considered to use the white LED as an illumination source. The white LED is again characterized by a fast response speed to the input power. Emphasis is placed on this feature, and -4 - (2) 1309927 is used to control the point-off or light quantity and has a signal transmission function. A signal transmission function which combines the light generated by using such a white LED, and a study of the power line communication system as described above are also carried out. Inventors, etc., such as the non-patent literature [Xiao Feng Min Yan, Tanaka Yuichi, Nakagawa Masao, "The Fusion System of White LED Lighting Signal Transmission and Power Line Signal Transmission", Electronic Information and Communication Society Technical Research Report, Corporate Legal Person Electronic Information and Communication Society, There was a proposal in March 12, 2000, Vol. 101, No. 726, pp. 99-1. In such systems, there is no effect on the human body due to the use of light. In addition, the power line is used, and the infrastructure is installed, and wiring is not required, and the system can be constructed at low cost. Further, if there is a light receiving means, communication can be performed even if a power line is not connected to a portable terminal. Further, since the signal on the power line directly controls only the dot-off or the amount of light of the white LED, the information can be released as light, and thus the advantage can be realized by an extremely simple configuration. However, the system described in the above non-patent document is mainly limited to experimental one-to-one communication, and is expected to be more widely used. SUMMARY OF THE INVENTION The present invention has been made in view of the above matters, and an object thereof is to provide a broadcasting system that transmits a majority information by using a power line signal transmission and an illumination optical signal of a led, and provides a broadcasting system in which such a broadcasting system is provided. Lighting bulbs. A broadcast system of the present invention is characterized in that: an LED light source for illumination and a power line for supplying electric power to the LED light source, (3) 1309927 and modulating the plurality of information on the power line and multiplexing the power The information modulation means for transmitting the waveform overlap, and the filter means for selectively separating one to plural numbers and controlling the light amount or the point of the LED light source from the modulated complex information on the power line; the light quantity change by the LED light source Or click to send the message. Thus, in the present invention, a plurality of pieces of information are added to the power line and transmitted. Thus, for example, as a filter means, a selection means for selecting information is provided, and by controlling the amount of light or the extinction of the LED light source by the selected information, information can be selectively broadcast from the LED light source by the light. The selection of the information may be performed by selecting the information on the power line or by selecting the information to be made on the receiving side device, in addition to the physical switch or the like. More specifically, in the information modulation means, the complex information is divided by the frequency division and sent to the power line, and the complex band-pass filter in which the frequency bands are not phase-phased is set in the filter means, so that one of them can be selected and can be separated. News. Or in the information modulation means, by dividing the multiplexed plural information by time, the mark information is added to the divided information and sent to the power line, and in the filter means, the information can be identified by the mark information and selectively Separate information. Further, the present invention is applied to such a broadcasting system, and belongs to an electric light bulb that emits light and illuminates by supplied electric power, and is characterized in that it has an LED light source for illumination, and is modulated from superimposed on the supplied electric power. The complex information selectively separates one to the complex number and controls the amount of light of the LED source or the filter means of black occupancy. Generally, the power used is AC, and when the AC-6-(4) 1309927 is used, an AC/DC conversion means for converting AC to DC is provided, and the information component separated by the filter means is superposed on the AC. It is preferable to drive the LED light source by the DC power converted by the /DC conversion means. By using this type of light bulb only for the commonly used light bulb, the information on the power line can be transmitted by light. Therefore, it is not necessary to perform a project such as a change of the lighting fixture. The information transmission by light can be realized by directly using the original lighting fixture. [Embodiment] FIG. 1 is a block diagram showing a first embodiment of a broadcasting system according to the present invention. In the figure, 1 is the information source, 2 is the power line modulator, 3 is the power line, 4, 5 is the universal socket, 6 is the L ED lighting device, 7 is the receiving terminal '11 is the AC/DC converter, and 12 is the band pass The filter 13 is a selection unit, 14 is an overlapping portion, and 15 is an LED group. The information source 1 is composed of a device that outputs various kinds of information, such as a tuner or a receiver such as a TV or a CATV, a radio, or a cable broadcast, in addition to a computer. Therefore, as information for broadcasting, various information such as images or music, sounds, portraits, and texts can be used. The broadcast information is one to plural, and it is here to output the plural information. The power line modulator 2 modulates the one-to-multiple information output from the information source 1 and multiplexes it, and superimposes it on the power waveform to be sent to the power line 3. Further, in normal power line communication, in order to realize communication in both directions, demodulation means are often provided, but in the broadcast system, communication in one direction is required, and thus demodulation means is not required. Further, in this example, as an example of the multiplex (5) 1309927 method of information, multiplexing is performed by frequency division. The power line 3 is a wire that is generally laid inside the house and outside the house. The power line 3 is an existing one that can be used. Further, in order to receive power supply from the power line 3, universal sockets 4, 5 and the like are provided on the wall surface or the like. The universal jack 4' 5 can also be used by an existing one. In the example shown in Fig. 1, a user who inserts the power line modulator 2 into the universal jack 4 and inserts the LED lighting device 6 into the universal jack 5 is provided. Of course, both the power line 3 and the universal jacks 4, 5 are new. Further, in this example, an AC power source that uses general commercial power is used as the power supply. The L E D lighting fixture 6 is a lighting fixture that is connected to the power line 3 for illuminating nearby. For example, indoors are installed on the ceiling. In addition to this, it is also possible to use lighting fixtures for various purposes such as spot lighting. In this example, the LED lighting device 6 includes an AC/DC converting unit 1 1 ' band pass filter 12, a selecting unit 13, an overlapping unit 14, an LED group 15 and the like. The AC/DC converter unit 11 converts the AC power supplied from the power line 3 into a DC driver in order to drive the LED group 15 to be driven by DC power. As the A C / D C conversion unit 1 1 , an existing technique can be used. Further, voltage adjustment is also performed in accordance with the operating voltage of the LED group 15. Further, since the information waveform modulated in the power line 3 is superimposed as described above, it is desirable that the information waveform is not generated as much as possible in the DC waveform by the smooth circuit or the like. The bandpass filter 12 is arranged to extract an information signal that is superimposed on the power line 3. As described above, in the example, the information is multiplexed by frequency division, so that one information can be selectively separated from the complex information by passing only the band pass filter of the specific frequency. The example shown in Fig. 1 of (6) 1309927 shows an example in which a complex bandpass filter having different frequencies passed through is provided in parallel. Alternatively, it may be constituted by a band pass filter of a frequency band that can be changed. Further, it is possible to increase the bias voltage for the separated information waveform, or to apply shaping or amplification. The selection unit 13 selects one to a complex filter used in the complex filter provided in the band pass filter 12, thereby selecting information to be transmitted by the light. The selection may be made by other methods except that the configuration is performed by selectively performing demodulation of a control signal transmitted as a specific frequency and selecting a filter by the control signal. Alternatively, the selection unit 13 may set the frequency corresponding to the information transmitted to the band pass filter 12 by using the frequency 'which can be changed by the band pass filter 12'. In the first drawing, the selection unit 13 may be provided in the front stage of the band pass filter 12, but may be provided in the subsequent stage. Further, when the frequency band of the band pass filter 2 can be changed, the selection unit 13 may have a frequency band set for the band pass filter 12 in accordance with a control signal of a specific frequency. Further, when the LED lighting fixture 6 can transmit only information transmitted at a fixed frequency, the selection unit 13 is not provided, and the frequency band to which the band pass filter 12 is fixed may be provided. The superimposing unit 14 is a power waveform in which the signal of the information extracted by the band pass filter 12 is superimposed on the AC/DC converting unit 11 and converted into a direct current. Thereby, the voltage applied to the LED group 15 can be changed by the signal of the information, and the amount of light or the extinction of the LED group 15 can be controlled. For example, when the LED group 15 is turned off, it is also possible to control the power from the AC/DC converter 11 by turning on/off the signal from the band pass filter 12. (7) 1309927 The LED group 1 5 is basically used for illumination, and is composed of a plurality of white LEDs or the like. Of course, the composition of LEDs is the same. The led group 15 is driven by the electric power given by white light to emit light. The led is ringing ’ so the amount of light is changed by the signal of the information, or the information is transmitted by the light. At this time, even if the high speed is not detected by the eyes of the person, it can be used. The light-receiving terminal 7 is a signal having a light-receiving means for extracting information from the irradiated light, and is demodulated. The light-receiving terminal 7 is an example of the operation of the broadcasting system of the present invention, as long as it has a light-receiving means, any personal computer or portable terminal, a mobile phone, or the like, a display device such as an audio device or a television. As the information source 1, it is prepared for a wide range of information, such as τν, cable broadcast, etc., in addition to data from a computer. The one-to-multiple information output from the information source 1 is modulated, and is superimposed and superimposed on the power waveform. Fig. 2 is a diagram showing an example of a signal waveform on a wire, using a commercial AC power supply (an example of a signal waveform in which information is superimposed on a 5 Hz/6 Hz waveform. For the influence of the device, the signal waveform of the information is overlapped less than The electric power shown in the enlarged view of the second (B) diagram indicates that the amount of light can be changed by clicking on the LED light source, for example, the red, blue, and green colors 3 are excellent in the characteristics of the overlapping portion 14 Therefore, the terminal device that receives the information as the illumination LED lighting device 6 can be used, such as a device that is provided with a light receiving means. The first embodiment broadcasts various contents. Or CATV, the radio is transmitted to the power line 3 in the power line modulator. An illustration. Here, it is shown that the waveform of power is avoided for other power waveforms. BPSK and other methods adjust the -10 - (8) 1309927 variable information and overlap with the power waveform. Also, the power line 3 can utilize existing wires. Further, when the power is taken from the universal jack and the information is separated and used, it is possible to provide the same information as the power line communication that is generally used. Power and information are transmitted from the universal jack 5 to the LED lighting fixture 6 via the power line 3. In the LED lighting device 6, electric power for loading a signal waveform is obtained from the universal jack 5. Further, on the other hand, the AC/DC converter 1 1 rectifies the DC power for driving the LED group 15 and transmits it to the overlapping portion 14. On the other hand, only the predetermined frequency component is taken out using the filter in the band pass filter 12 selected by the selecting unit 13. At this time, it is preferable to apply a bias voltage as needed, or to shape or amplify the waveform. In this manner, the superimposed portion 14 synthesizes a power waveform that is AC/DC converted into a direct current and a signal that is extracted by the band pass filter 12 and applies the signal to the LED group 15. The voltage applied to the LED group 15 changes in accordance with the signal waveform of the synthesized information. Thereby, the amount of light emitted from the LED group 15 is changed in accordance with the signal waveform of the information, and information can be transmitted. The light emitted from the LED group 15 is received by the light receiving element provided on the light receiving terminal 7 side. Further, by extracting the amount of light received by the light and demodulating it, information can be obtained at the light receiving terminal 7. As described above, from the information provided by the information source 1, the information selected in the LED lighting device 6 is sent together with the illumination light, and is received in the light receiving terminal 7. At this time, the light receiving unit of the light receiving terminal 7 does not correctly face the LED lighting device 6 (LED group 15), and can receive a certain degree of illumination light, so that the information signal can be obtained with good communication quality. . This is -11 - (9) 1309927 LED illumination light is used by the user of the illumination, and thus the transmission power in appearance is greatly caused. When the signal is transmitted with the same signal intensity by the infrared rays that have been used in the past, the influence on the human body (e.g., the eyes) cannot be avoided, and in this sense, the information transmission by the light is also advantageous. Here, only one LED lighting fixture 6 is shown here. However, when a plurality of LED lighting fixtures 6 are arranged in the vicinity, by selecting the same information and broadcasting, it becomes stronger for the shadow and also for the movement. On the contrary, even if there is an LED lighting fixture 6 that selects other information for broadcasting in the vicinity, if it is received in the vicinity of one LED lighting fixture 6, the light from the other LED lighting fixture 6 will be attenuated and the influence will be small. Further, when interference with such other LED lighting fixtures is a problem, when the information from the information source 1 is modulated, a strong interference modulation method such as OOK-RZ (On-Off Keying, Return-to) is used. -Zero) or OFDM (Orthogonal Frequency Division Multiplexing) can be modulated. Further, an example in which the A C/DC conversion unit 11 or the band pass filter 12 is provided in the LED lighting apparatus 6 has been described as an example of the diagram. However, the present invention is not limited thereto. For example, these circuits may be provided in a wall switch for switching illumination, and the power line portion from the wall switch to the LED lighting device 6 may constitute a direct current for supplying a waveform in which information is superimposed. At this time, the switch that becomes the selection unit 13 can also be provided on the wall surface together with the switch for switching the illumination. Of course, the configuration of each part is not limited to these examples and is arbitrary. Fig. 3 is a block diagram showing a second embodiment of the broadcasting system of the present invention in the form of a -12 - 1309927 (10). In the same drawing, the same reference numerals are given to the same portions as those in the first embodiment, and the explanation is omitted. 16 is a band-pass filter, 17 is a determination unit, and 18 is a selection unit. In this example, fixed identification information (IP, PN code) or the like is assigned to each LED lighting fixture 6 or each information, and only the specific information is selected for the broadcaster by identifying the information comparison. The power line modulator 2 divides the complex information from the information source 1 into packets, and assigns the headers at the head and divides them by time to overlap the power waveform. The identification information is included in the letterhead. The LED lighting device 6 includes a band pass filter 16 and a determination unit 17 and a selection unit 1 8 together with the LED group 15 and the AC/DC converter unit 1 1 . The band pass filter 16 is a signal component that separates information by removing an alternating current component of electric power. In this example, with respect to the complex information, all signals pass through the bandpass filter 16. The judging unit 17 extracts the header portion from the signal of the information separated by the band pass filter 16, and compares the identification information set in advance to determine whether or not the transmitted information is transmitted by the light. Further, if it is a sender, the signal of the information unit is selected by the selection unit 1 and output to the superimposing unit 14. The signal ' passed through the selection unit 18 is superimposed on the power waveform converted to direct current by the AC/DC conversion unit 11 in the overlapping portion, and supplied to the LED group 15. Thereafter, similarly to the first embodiment described above, the LED group 15 transmits the information according to the light by changing the amount of light by the information signal or by causing the dot to be controlled. Further, illumination is performed by the light emission of the LED group 15. In the second embodiment, for example, when the identification information is assigned to each of the LED lighting fixtures 6-13-(11) 1309927, the information broadcast by each of the LED lighting fixtures 6 is transmitted to the side of the power line 3. Further, by setting the identification information, it is possible to select information to be broadcast from each of the LED lighting devices 6. At this time, the identification information can be set in plural, or the complex information can be configured and sent out by light. Also in the second embodiment, as in the first embodiment described above, various aspects can be obtained. Further, the advantages are also the same as those of the first embodiment described above. In addition to these embodiments, the transmission of the illumination light is not selected, but the transmission of the light transmitted by the power line is performed, and the terminal side of the reception may constitute the selection information. Fig. 4 is a view showing an embodiment of an electric lamp applicable to a broadcasting system of the present invention. In the figure, 21 is an electric bulb, and 2 2 is a lamp holder. The example shown in Fig. 4 is a part of the LED lighting device 6 applicable to each of the above-described broadcasts. As a device, a white thermal bulb has been used in the past and is generally used. The flower board or the like is provided with a lamp holder 23 in advance, and the base 22 of the electric bulb 2 1 is electrically connected to the base 22 of the lamp holder 23 as shown in Fig. 4(B). In this example, the wiring portion of the power line 3 or the lamp holder 23 is still housed in the electric light bulb 21 in the wiring illuminating device shown in the second embodiment as described in the fourth (A) diagram. The composition within 6. It can be housed in the portion of the base 22 of the electric bulb 21. Further, unlike the point light source in which the filament of the white thermal bulb is used, a plurality of LEDs are provided in a planar shape, so that the circuit portion can be accommodated on the back surface. Controllable into a wide range of applications, the information is blistering, 23 system lighting in the day by the preparation, or for example, the formation of -14 - (12) 1309927 by using such a light bulb, will generally The white hot bulb is only replaced with the bulb 2 1 of the invention, and the bulb 2 1 can be used as a source of information for the light. Of course, the shape of various electric bulbs used in the past is a shape other than the shape shown in Fig. 4, and various shapes are also used. The shape of the bulb 2 1 of the present invention is not limited to the shape as shown in Fig. 4, and may be formed into any shape. For example, the electric bulb 21 having a shape in which LEDs are linearly arranged as a fluorescent lamp may be formed. The following 'descriptions' illustrate several application examples of the broadcast system of the present invention. Fig. 5 is an explanatory view showing a first application example of the present invention. In the figure, 31 is an LED lighting device '32 is a work, and 3 3 is a light receiving terminal. The example shown in Fig. 5 is an example showing that the broadcasting system of the present invention is applied to an art museum, a museum, or the like. In an art museum or a museum, for example, each work or exhibit (hereinafter referred to as work 32) is illuminated by a spotlight, and a description of the work 32 is given. As the lighting fixture for illuminating the work 3 2, the LED lighting fixture 3 of the present invention is used. On the other hand, the power is supplied to the power line 3 of the LED lighting fixture 31, and the explanation information of the work 3 2 is superimposed and sent. In addition, in each of the LED lighting fixtures 3 1 provided in each of the works 32, the description information for each of the works is selectively extracted, and the light amount can be sent out by controlling the amount of light or the light of the illumination light as described above. Explain the information. The appreciator extracts the light-receiving terminal 3 3 before the work 3 2, and the light is irradiated to the light-receiving terminal 3 3 ' to take out the light amount change or click-off and demodulate ‘ to refer to the description information of the work 3 2 . Also, when the appreciator moves to the front of the next work', the description information of the work is transmitted by illuminating the -15-(13) 1309927 light of the work, and referring to the light-receiving terminal 3 3, the description of the work can be referred to. News. In this way, the description information power of each of the works 32 is superimposed on the power line 3 and sent out, and in the LED lighting fixture 3 1 for illuminating each work, the description information of the corresponding work 3 2 is selected and light is performed. By sending out, the description information of each work 3 2 can be presented to the appreciator together with the illumination of the work 3 2 . The description of each work is not limited to two. For example, when each piece of work provides a description information in a plural language, the LED lighting fixture 31 selects the plural description information corresponding to the illuminated work and sends it by light. Further, on the side of the light receiving terminal 3 3, the plurality of explanatory information transmitted by the light is separated and demodulated, and the explanation information of the language designated by the appreciator is selected to be presented to the appreciator. Alternatively, the description information for the adult and the explanation information for the child may be used to send a plurality of pieces of information to the same LED lighting device 31 by one piece of light. Also, the description information is not limited to text information, for example, sound information may be used, or lines or animations may be used. Also, it is also possible to appropriately combine these pieces of information. Fig. 6 is an explanatory view showing a second application example of the present invention. In the figure, 41 is an LED lighting fixture, 42 and 43 are seats, and 44 is a light receiving terminal. This second application example is an example in which the broadcasting system of the present invention is applied to an airplane, a train, a bus, or the like. In the example shown in Fig. 6, the LED lighting fixtures 4 1 ' are provided for each of the seats to illuminate the seats. At the same time, the information transmitted via the power line 3 is sent by light. Further, a light receiving terminal 44' is provided on the back surface of the seat 42 in front of -16-(14) 1309927, and a passenger sitting on the seat 43 can refer to the screen of the light receiving terminal 44. The light receiving terminal 44 receives the light ray irradiated from the LED lighting device 41, and the light receiving terminal 44 obtains the information transmitted by the light. The passenger can view and listen by selecting the desired information by operating the light receiving terminal 44. In particular, in aircraft including spacecraft, it is necessary to avoid the use of radio waves in the machine in consideration of the influence on the meter and the like. However, if it is light, there is no influence on the meter, and it has no effect on the human body. Therefore, as shown in Fig. 6, the information can be distributed by wireless. Further, the selection of the information may be performed on the side of the light receiving terminal 44 other than the LED lighting device 41. Further, in an airplane or a tram, a bus or the like, most of the power used for illumination is DC. Therefore, it is not necessary to provide the AC/DC converter 1 1 shown in the configuration of Fig. 1 or Fig. 3 . For example, when all the information transmitted through the power line 3 is sent by the light, the pass filter 1 2 or the overlapping portion 14 or the like is not required, and the power superposed by the waveform of the information supplied from the power line 3 still drives the LED group. Information can be sent by light. Hereinabove, two application examples are shown for the broadcasting system of the present invention. However, it is not limited to those applications, and the light can be applied to all uses of the distribution information. For example, in a general office or the like, in addition to being used as a distribution system for a personal computer on a desk, information transmission for each process in the factory or the like can be used. Further, it is also possible to carry out a distribution of a television or radio broadcast in the home, and it can be viewed in any house by a portable display. At this time, the selection unit corresponding to the tuner is provided in the -17 - (15) 1309927 LED lighting fixture. The selection unit can be selected by a selection unit in a lighting fixture such as a television controller. In addition, for example, a sports field or an event venue, etc., may be superimposed on the illumination light and transmitted to the portable terminal such as the viewer to obtain information. (Effects of the Invention) As apparent from the above description, according to the present invention, it is still possible to use the photographing device to distribute most information by light. At this time, if you need to set up a separate transmission device, you do not need to reset the laying. Therefore, the broadcasting system can be constructed at low cost. In addition, it is also possible to construct a safety system for the influence of the human body such as eye safety or for applications such as airplanes. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing a first embodiment of a broadcasting system of the present invention. Fig. 2 is a view showing an example of a signal waveform on a power line. Fig. 3 is a block diagram showing a second embodiment of the broadcasting system of the present invention. Fig. 4 is a view showing a mode of implementation of a broadcast system applicable to the present invention. Fig. 5 is a view showing a first aspect of the first application example of the present invention, in which various types of LED sports are used, and it is also possible to clarify that the communication cable used in the field is not in a red wave or in the form of a broadcast system. Illustrating. -18 - (16) (16) 1309997 of the form of the electric light bulb Fig. 6 is an explanatory view showing the second application example of the present invention (description of the symbol) 1 Information source 2: Power line modulator 3: Power line 4, 5 : Universal socket 6 : LED lighting device 7 : Light-receiving terminal 1 1 : AC / DC converter 1 2 : Band-pass filter 1 3 : Selection unit 1 4 : Overlap 15 : LED unit 1 6 : Band-pass filter 1 7 : determination unit 1 8 : selection unit 2 1 : electric bulb 2 2 : base 2 3 : socket 31 : LED lighting fixture 3 2 : work 3 3 : light receiving terminal 41 : LED lighting fixture -19 - 1309927 (17) 42 , 43 : Seat 44: Light-receiving terminal