1339030 (1) 玖、發明說明 【發明所屬之技術領域】 本發明是關於一種在緊急時無外部電源就可點亮光源 ，而藉由視覺施以引導緊急出口或避難路線的緊急燈，及 使用此種緊急燈而在緊急時傳輸資料的緊急燈無線資料傳 輸系統。 【先前技術】 各種光源被利用於照明或顯示。現在作爲光源大都利 用白熾燈與螢光燈。近年來開始利用LED。LED是耗電較 少壽命久之故，因而LED在將來被廣泛被利用的可能性 較高。在現在有一部分也被利用在交通信號或汽車的後照 燈等。 在顯示中緊急燈是一旦被點亮，則半永久地照明，而 較少熄燈。此乃爲了必具備在火災、災害等事故，多數緊 急燈設置在大樓、劇場、電影院、醫院、機場、車站等顯 眼場所。現在的緊急燈是作爲光源大都利用螢光燈。在緊 急燈下’考慮在災害時有切斷外部電力的情形之故，因而 在緊急時使用內部的電池來進行顯示。爲了有效地利用有 限的電力，使用電力效率比白熾燈優異的螢光燈。但是期 待者利用電力效率優異的光源，或是減低因採用壽命久的 光源的維修費用。如上述地，LED是電力效率優異且壽命 久’惟並未考量到適用於緊急燈，如稍記載於專利文獻1 (日本特開平9 - 1 90 8 4號公報），有在充電中的顯示等次 (2) (2)1339030 要地顯示利用LED的例，惟作爲緊急燈的主光源並沒有 利用LED。 又，一般所設置的緊急燈是僅視覺地顯示在那裏有緊 急口或緊急樓梯。作爲此以外的資訊，眾知有如記載於專 利文獻2 (日本特開平8-299475號公報），設置依聲音 的引導機構，或是如記載於專利文獻3 (日本特開平8· 6 7203號公報），進行收音機廣播者等。但是聲音輸出是 極耗電。所以，緊急燈的第一項的緊急出口等視覺性顯示 之同時，爲了進行此種聲音輸出，必須裝載大容量的電池 ，有成爲昂貴之同時，設備也大型化的缺點問題。 另一方面，利用 LED的高速響應特性，可進行高速 調變之故，因而也進行著將LED利用於光資料傳輸的硏 究。利用此點，也知道同時地進行照明與通信的構想。但 是’通常的照明器具是若在災害等會停止供電時會熄燈。 因此’在緊急時並無法施行任何利用，或是考慮緊急時的 傳輸系統是並未被構築。 【發明內容】 本發明是鑑於上述事項而創作者，其目的是在於提供 一種具有電力效率優異，壽命久的光源的緊急燈，同時提 供一種將此種緊急燈利用作爲緊急時的資料的發送源的緊 急燈無線資料傳輸系統及在該系統被利用的緊急燈》1339030 (1) Field of the Invention The present invention relates to an emergency light that can illuminate a light source without an external power source in an emergency, and that is used to visually guide an emergency exit or evacuation route, and to use An emergency light wireless data transmission system that transmits such data in an emergency when such an emergency light is used. [Prior Art] Various light sources are utilized for illumination or display. Most of the light sources are now incandescent and fluorescent. In recent years, LEDs have been used. LEDs have a long life and consume less power, so LEDs are more likely to be widely used in the future. Some of them are now also used in traffic signals or car backlights. In the display, the emergency light is once semi-permanently illuminated and less extinguished. This is necessary for accidents such as fires and disasters. Most emergency lights are installed in conspicuous places such as buildings, theaters, cinemas, hospitals, airports, and stations. Today's emergency lights are mostly used as light sources to use fluorescent lights. Under the emergency light, it is considered that the external power is cut off during a disaster, so that the internal battery is used for display in an emergency. In order to effectively utilize limited power, a fluorescent lamp that is superior in power efficiency to incandescent lamps is used. However, the waiter uses a light source with excellent power efficiency or reduces the maintenance cost of the light source that has been used for a long time. As described above, the LED is excellent in electric power efficiency and has a long life. However, it has not been considered to be suitable for use in an emergency lamp. For example, it is described in Patent Document 1 (Japanese Laid-Open Patent Publication No. Hei 9- 1 90 8 4), and has a display during charging. Equivalent (2) (2) 1339030 An example of using an LED is shown, but the LED is not used as the main light source of the emergency light. Also, the emergency light that is generally provided is only visually displayed where there is an emergency or emergency stair. In addition, as for the information of the above-mentioned, it is described in the patent document 2 (Japanese Patent Laid-Open No. Hei 8-299475), and the guidance mechanism for the sound is provided, or is described in Patent Document 3 (Japanese Patent Laid-Open No. Hei 8-6703 ), radio broadcasters, etc. But the sound output is extremely power hungry. Therefore, at the same time as the visual display of the emergency exit of the first item of the emergency light, in order to perform such sound output, it is necessary to load a large-capacity battery, which is a disadvantage of being expensive and increasing the size of the device. On the other hand, the high-speed response characteristic of the LED enables high-speed modulation, and therefore, the use of the LED for optical data transmission is also performed. Using this point, we also know the idea of lighting and communication at the same time. However, the usual lighting fixtures are turned off when power is stopped during a disaster. Therefore, it is not possible to perform any use in an emergency, or to consider that the transmission system in an emergency is not constructed. SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the invention is to provide an emergency light having a light source excellent in electric power efficiency and long life, and to provide such an emergency light source as a source of data in an emergency. Emergency light wireless data transmission system and emergency lights used in the system"
本發明的緊急燈，屬於裝載電池，而在緊急時無外部 電源就可點亮光源的緊急燈，其特徵爲作爲光源使用LE D (3) (3)1339030 。藉由L E’D的特徵的高電力效率，抑制電池的消耗，可 實現因電池的小型化的裝置的小型化或發光時間的長期化 。又壽命久之故’因而可增長光源更換等的維修間隔，並 可刪減維修費用。又，LED是在耐衝性上也優異，提供一 種在激災害之際也不會損傷仍可利用的緊急燈。 又’在此種緊急燈設置記憶在緊急時所傳輸的資料的 記憶手段，及依據記憶手段所記憶的資料來控制供給於 LED的電力並控制LED的發光量或點滅的光調變手段， 而藉由光線傳輸資料的構成。如上述地LED是響應特性 較佳之故’因而可進行依據此種資料的調變，可採用以進 行顯示的光線直接使用於資料傳輸。藉由此種構成，可將 在先前僅顯示緊急出口或緊急樓梯等的緊急燈，可活用作 爲緊急時的資訊源。這時候，仍可使用作爲緊急燈的光源 者之故，因而也不會如聲音輸出等地而與光源另外地消耗 大電力，而X光源的耗電程度就可實行。因此，爲了這 種資料傳輸功能並不必重新裝載大容量的電池，以裝載於 顯示用的電池程度就可作爲資訊源的動作。 又具有在緊急時以外時藉由外部電源所驅動的狀態下 分離重疊於外部電源的電壓所傳輸的資料並解調的解調手 段；而將藉由該解調手段所得到的資料記憶在記憶手段。 藉由此種構成，可將緊急時欲傳輸的資料，在緊急時以外 的場合經電源線可發送至各該緊急燈。由此，可容易地進 行在緊急時須發送的資料設定或更新等。 又，本發明的緊急燈無線資料傳輸系統，屬於使用在 -6 - (4) (4)1339030 緊急時無外部電源就可點亮光源的緊急燈而將資料傳輸至 終端手段的緊急燈無線傳輸系統，其特徵爲：緊急燈是具 有：電池、作爲上述光源的LED、記憶緊急時須傳輸的資 料的記憶手段，以及依據記憶手段所記憶的資料來控制供 給於LED的電力並控制上述LED的發光量或點滅的光調 變手段；終端手段是具有：受光從緊急燈的LED所放射 的光線並變換成電信號的受光手段，及解調從該受光手段 所輸出的電信號而取得資料的解調手段。藉由此種構成， 在緊急時從緊急燈藉由光線可將資料傳輸至終端手段。例 如在終端手段可顯示地板的地圖或文章等一起的避難路線 或通報目的地等的各種資訊，而在緊急時可順利地進行利 用者的避難引導。 【實施方式】 第1圖是表示本發明的緊急燈及緊急燈無線資料傳輸 系統的實施一形態的方塊圖；第2圖是表示作爲光源的 LED陣列的一例的說明圖。圖中，1是緊急燈，2是攜帶 終端，1]是電池，12是切換部，】3是LED陣列，1 4是 調變解調部，2】是受光部，22是解調部，23是顯示部， 3 1是蓋體。緊急燈1是與一般性先前的緊急燈同樣地， 作爲電源與外部電源一起具有電池11，又，具有在停止 來自外部電源的電力供給時用以切換來自電池11的電力 供給的切換部1 2。 在本發明中，作爲照明用的光源，代替先前的螢光燈 (5) (5)1339030 而使用LED陣列1 3。在第2圖表示LED陣列】3形狀的 —例子。在表示於第2(A)圖的例子中，與一般性的緊 急燈同樣地，在象形文學等所表記的蓋體3 1中設置LED 陣列1 3者。在此種形態使用者，如第2 ( B )圖所示地， 利用與螢光燈同樣的棒狀LED陣列。例如將LED元件配 置一至複數列狀地可以。又，若爲此種LED陣列1 3，則 可利用作爲直流點燈的螢光燈代替，僅將一般所利用的緊 急燈內的螢光燈換成如第2 ( B )圖所示的LED陣列13 就可構成本發明的緊急燈。這時候，在從電力線供給交流 電力時，而在AC/DC變換器變換成直流而加以驅動就可 以。又，在交流點燈的螢光燈所利用的緊急燈中，在LED 陣列13內內設DC/AC變換器，使用在依電池11的驅動 時就可以。又，藉由使用作爲此種螢光燈代替的形狀的 LED陣列1 3，可作成外觀上與先前的緊急燈並沒有任何 變化者。 如第2 ( C )圖所示地，除了構成作爲此些先前的照 明管的代替的構成之外，也可將形成在蓋體31的象形文 字等的顯示’藉由LED陣列13直接顯示的構成。若爲表 示緊急出口等的象形文字，一般以白色與綠色形成象形文 字之故’因而適當地配置白色LED與綠色LED就可出現 象形文字。當然，與彩色顯示裝置同樣地配置LED，構成 能顯示象形文字等也可以。又，在這時候作爲蓋體31使 用透明者較理想。 如此地作爲緊急燈1的光源，藉由使用LED陣列， -8- (6) (6)1339030 LED具低耗電的特徵之故，因而即使較少電池容量也實現 與先前同樣的點燈時間，可實現電池]1的小型化，甚至 於可實現緊急燈1的小型化及輕量化、低價格化。相反地 ’若爲相同電池容量，可長時間地繼續點燈，成爲長時間 可顯示在災害時避難引導的顯示。又，LED是壽命久之故 ’因而可延長所謂更換光源的維修的間隔，或是可減少維 修作業的工數，並可減低維修費用。當然，也期待進行污 垢或電池的壽命，災害時的點燈校驗等維持性能所用的維 修。又，LED是具有高耐衝擊性，在激災害時也可避免光 源損傷，而可期待繼續點燈。 在表示於第1圖的本發明的緊急燈1，又內設調變解 調部】4，資料記憶體1 5，光調變部1 6。在這裏，利用使 用外部電源的電力線的通信方式，對於緊急燈1傳輸資料 。調變解調部14是分離重疊於外部電源的電壓所傳輸的 經調變的資料’施以解調後儲存在資料記憶體1 5。例如 ’藉由從電腦等利用電力線在緊急時由緊急燈1發送須傳 輸的資料’而在緊急時以外的時候經由外部電源可將資料 發送至緊急燈]’可容易地進行資料儲存在資料記憶體1 5 。又，也可調變儲存在資料記憶體〗5的資料，或緊急燈 I的狀態等各種資訊而經電力線施行發送。由此，也可遙 控確認資料的重寫或確認緊急燈]的動作。又在不進行雙 方向的通信時’調變解調部14是僅構成作爲解調功能。 又’在資料記憶體事先儲存緊急時須傳輸的資料時，則不 需要該調變解調部1 4。 -9- (7) (7)1339030 在資料記憶體1 5可儲存緊急時送出的資料。該資料 記億體1 5是儘可能爲低耗電較理想。又，必須作成在切 換電源之際不會抹去所記憶的資料。例如由可重寫的 ROM ’或是不變性RAM等所構成較理想。 光調變部1 6是當檢測在切換部1 2將電源從外部電源 切換成電池1 1等緊急時，則讀出被儲存於資料記憶體J 5 的緊急時的資料，經調變，重疊在供給於LED陣列丨3的 電力波形。由此，LED陣列13的發光光線是成爲藉由光 調變部16所調變的資料來控制點減或光量。由此進行依 光線的資料傳輸。當然，在緊急時以外，調變被儲存在-資 料記憶體1 5的資料並供給於LED陣列1 3，俾進行資料傳 輸也可以。這時候，或緊急時須傳輸的資料不同也可以。 攜帶終端2是如具攝影機的PDA或手機等，包括受 光部21，解調部22，顯示部23等所構成。 解調部22是從受光部21抽出從輸出的電信號被調變 的資料信號，並解調而取得資料者，取得的資料是可作各 種活用，惟在此顯示在顯示部23。由此，成爲在緊急時 從緊急燈1藉由光線所傳輸的資料被顯示在顯示部23。 例如可將有關於設在樓層的緊急出口或避難路線的地圖等 文字或畫像顯示在顯示部23。又，也可傳輸聲音資訊， 若如手機地內設揚聲器，也可簡單地取得聲音資訊。 說明本發明的緊急燈及緊急燈無線資料傳輸系統的實 施一形態的動作及利用的一例。在緊急燈1，對於資料記 憶體1 5事先進行儲存在緊急時所送出的資料。作爲一種 •10- (8) (8)1339030 方法，如上述地利用電力線通信，重疊調變成外部電源的 波形的資料之後傳輸，在緊急燈1取得從外部電源所傳輸 經調變的資料而藉由解調所得到，或是也可攜成在外部事 先將資料儲存在ROM等後，將ROM作爲資料記億體15 安裝於緊急燈】。例如也可構成裝設記憶卡等。 在緊急時，光調變部1 6從資料記憶體1 5讀取資料並 經調變，重疊在供給於LED陣列1 3的電源波形。藉由經 調變的資料重疊的電力來驅動LED陣列13，LED陣列13 是可進行發光’並且控制其發光量或點滅，藉由光線可送 出資料》 又，攜帶終端2的持有者是在緊急時藉由將持有的攜 帶終端2朝向緊急燈1，就可接收從緊急燈]藉由光線所 傳輸的資料。例如在緊急時大都不知道自己在何處的情形 ，如依照緊急燈進行避難，也不知道還要多少才能避難而 感到不安。但是’在本發明中從緊急燈]可視覺地（或是 聲音等）可取得建築物的名稱或樓層數，樓層的地圖或避 難路線的圖示，再幾公尺就到緊急出口等先前僅緊急燈無 法得到的更詳細的資訊。因此，減輕某種程度的不安，而 可更敏捷地進行避難。 —般’攜帶終端2是電池驅動較多之故，因而在緊急 時也可有效地活用。因此，藉由使用在緊急時無外部電源 下發出光線的緊急燈，及不需要外部電源的攜帶終端2， 緊急時’特別是外部電源被切斷時，也可順利地進行避難 引導等。 -11 - 1339030 ⑼ 又’在本發明的緊急燈1內成爲需要光調變部16等 進行動作所用的電力，惟與發光所用的電力相比較，此些 電子電路部分動作所需要的電力極少。所以，即使具有此 種依光線的資料傳輸功能，也幾乎不必增強緊急燈I的電 池11’例如與光線以外而送出電波或聲音等的構成相比 較’也不必另外設置顯著地抑制耗電，或送出資料所用的 手段。例如紅外線也同樣地不能避免耗電，又必須另外設 置發送機。由這些減低耗電及裝置的簡化的觀點，使用依 LED光源的光線的資料傳輸是較有利。 當然’緊急燈1是藉由LED陣列13的發光與一般緊 急燈同樣地進行照明進行緊急出口或避難路線的顯示，而 對於具有攜帶終端2的人們在緊急時有效的情形並沒有變 化。爲了資料傳輸而控制發光量或點滅，此種光量變化也 不會被人的眼睛感受到’並不會損及作爲緊急燈的功能。 如上述地可活用led的特性之故，因而可發揮比先前緊 急燈更優異功能者。 又’依此種緊急燈1的資料傳送，並不被限定於緊急 時者。將被儲存於資料記憶體1 5的資訊藉由光線經常地 傳輸也可以。又，也將緊急用資料以外的資料儲存在資料 記憶體15，而在光調變部16變更緊急時與不是緊急以外 時的讀取資料，則也可將如周圍商圈資訊或消息等傳輸至 攜帶終端2。緊急燈1是一旦被點亮就不會熄滅，不管曰 夜經常地被點亮。所以，攜帶終端2的利用者是從緊急燈 I可經常地獲得資訊。又，如上述地使用電力線通信而隨 -12- (10) (10)1339030 時重寫資料記憶體的內容，且可經常地更新內容之故，因 而在緊急時以外的時候可將資料即時地發送至攜帶終端2 〇 在上述例子中說明了藉由電力線通信取得資料的例子 ’及在資料記憶體1 5事先儲存資料的情形。但是並不被 限定於此者，作爲將資料送進緊急燈I的方法，可利用各 種方法。第3圖是表示本發明的緊急燈及緊急燈無線資料 傳輸系統的其他實施形態的方塊圖。圖中，41是天線， 42是調變解調部。在表示於第3圖的例子中，表示由外 部藉由電波發送資料，在緊急燈1接收並儲存在資料記憶 體15的例子。藉由天線41所接收的資料是在調變解調部 42被解調，使得資料被儲存在資料記憶體】5。接收此種 資料是在緊急時以外的時候進行就可以。在緊急時以外的 時候，無法接受來自外部電源的供電之故，因而也可接收 依此種電波的資料。當然在進行廣播型的資料發送時，調 變解調部42是僅具有解調功能就可以。 又’如第3圖所示的電波以外，利用光纖或通信電纜 等電力線以外的通信線也可事先接受資料的發送。又，藉 由利用表不於弟1圖的電力線通信，而不必另外設置天線 或其他電續寺’就具有可接受資料的發送的優點。 (發明的效果） 由以上說明可知道依照本發明，藉由將LED使用作 爲光源’因利用LED特徵的高電力效率，可抑制電池的 -13- (11) (11)1339030 消耗，並可實現依電池的小型化的裝置的小型化或發光時 間的長期化。又，壽命長之故，因而可延長更換光源等的 維修間隔，並可刪減維修費用。又LED是在耐衝擊性也 優異，可提供一種在激災害時也不會損壞地可利用的緊急 燈·> 又’ LED是響應特性優異之故，因而藉由控制點滅或 光量可利用作爲依光線的資料的發送源。緊急燈是在內部 裝載電池，藉由災害等斷開電力時也可繼續發光。使用該 發光光線，可發送在緊急時事先儲存的緊急出口或避難樓 梯的位置顯示或一直到緊急出口的避難路線等各種緊急時 的資料。對於此種傳輸資料的功能，與另外設置電池或紅 外線等發送設備的情形相比較也不會需要較多費用，又不 會有較多耗電之故，因而也不會損及在緊急時作爲發光的 緊急燈的功能《 又，緊急燈是一旦被點亮，則半永久性地不會熄燈， 因不受大氣或季節的影響，而被設在顯眼之處。因此，不 但可發送緊急用資訊，也可發送周圍的廣告或通知等一般 性資訊可期待在緊急時以外頻繁地被利用，而可提高緊急 燈的附加價値。依照本發明，如此地可發揮各種效果者》 【圖式簡單說明】 第1圖是表示本發明的緊急燈及緊急燈無線資料傳輸 系統的實施一形態的方塊圖。 第2圖是表示成爲光源的l E D陣列的一例的說明圖 -14· (12) 1339030 第3圖是表示本發明的緊急燈及緊急燈無線資料傳輸 系統的其他實施形態的方塊圖。 (記號的說明） 1 :緊急燈The emergency lamp of the present invention belongs to an emergency lamp that mounts a battery and illuminates a light source without an external power source in an emergency, and is characterized in that LE D (3) (3) 1339030 is used as a light source. By suppressing the consumption of the battery by the high power efficiency of the feature of L E'D, it is possible to achieve downsizing of the device for miniaturization of the battery or long-term luminescence time. It also has a long life, so it can increase the maintenance interval of light source replacement, etc., and can reduce the maintenance cost. Further, the LED is excellent in the impact resistance, and provides an emergency lamp that can be used without damaging the disaster. In addition, in such an emergency light, a memory means for storing data stored in an emergency, and a light modulation means for controlling the amount of light supplied to the LED and controlling the amount of light emitted or extinguished by the LED based on the data memorized by the memory means are provided. And the composition of the data transmitted by light. As described above, the LED has a better response characteristic, and thus the modulation according to the data can be performed, and the light for display can be directly used for data transmission. With this configuration, an emergency light that previously only displays an emergency exit or an emergency stairs can be used as a source of information in an emergency. At this time, it is still possible to use the light source as an emergency light, and therefore, it does not consume a large amount of electric power with the light source as the sound output or the like, and the power consumption of the X light source can be performed. Therefore, in order to perform such a data transfer function, it is not necessary to reload a large-capacity battery, and it is possible to act as a source of information by being loaded on the battery for display. Further, there is a demodulation means for separating and transmitting data transmitted by a voltage superimposed on the external power source in a state driven by an external power source other than an emergency; and the data obtained by the demodulation means is memorized in the memory. means. According to this configuration, the data to be transmitted in an emergency can be transmitted to each of the emergency lights via a power line in an emergency. Thereby, it is possible to easily perform setting, updating, etc. of the data to be transmitted in an emergency. Moreover, the emergency light wireless data transmission system of the present invention belongs to the emergency light wireless transmission using the emergency light that can illuminate the light source without an external power source in the emergency when the -6 - (4) (4) 1339030 emergency is transmitted to the terminal means. The system is characterized in that: the emergency light has a battery, an LED as the light source, a memory means for storing data to be transmitted when the battery is urgent, and a data stored according to the memory means to control the power supplied to the LED and control the LED. a light modulation means for illuminating or extinguishing; the terminal means is a light receiving means for receiving light emitted from an LED of an emergency lamp and converting it into an electrical signal, and demodulating an electrical signal output from the light receiving means to obtain data Demodulation means. With this configuration, data can be transmitted to the terminal means from the emergency light by the light in an emergency. For example, in the terminal means, various information such as an evacuation route or a notification destination such as a map or an article of the floor can be displayed, and the evacuation guidance of the user can be smoothly performed in an emergency. [Embodiment] FIG. 1 is a block diagram showing an embodiment of an emergency light and emergency light wireless data transmission system according to the present invention. FIG. 2 is an explanatory view showing an example of an LED array as a light source. In the figure, 1 is an emergency light, 2 is a portable terminal, 1] is a battery, 12 is a switching unit, 3 is an LED array, 14 is a modulation and demodulation unit, 2 is a light receiving unit, and 22 is a demodulation unit. 23 is a display unit, and 3 1 is a cover. The emergency light 1 has a battery 11 as a power source together with an external power source, and has a switching unit for switching the power supply from the battery 11 when power supply from the external power source is stopped, similarly to the conventional emergency light. . In the present invention, as the light source for illumination, the LED array 13 is used instead of the conventional fluorescent lamp (5) (5) 1339030. In Fig. 2, an example of an LED array [3 shape] is shown. In the example shown in Fig. 2(A), the LED array 13 is provided in the lid body 3 1 of the pictographic literature or the like in the same manner as a general emergency lamp. In this form of the user, as shown in Fig. 2(B), the same rod-shaped LED array as the fluorescent lamp is used. For example, the LED elements can be arranged in a plurality of columns. Further, in the case of such an LED array 13, it is possible to replace the fluorescent lamp in the emergency light used in the general use with the fluorescent lamp as the second (B) in place of the fluorescent lamp as the direct current lighting. The array 13 can constitute the emergency light of the present invention. At this time, when AC power is supplied from the power line, the AC/DC converter is converted to DC and driven. Further, in the emergency lamp used for the fluorescent lamp for AC lighting, a DC/AC converter is provided in the LED array 13, and it can be used when the battery 11 is driven. Further, by using the LED array 13 having a shape instead of such a fluorescent lamp, it is possible to make the appearance without any change from the previous emergency lamp. As shown in the second (C) diagram, in addition to the configuration constituting the replacement of the previous illumination tubes, the display of the pictographs or the like formed on the lid body 31 can be directly displayed by the LED array 13. Composition. In the case of pictographs such as emergency exits, pictographs are generally formed in white and green. Thus, pictograms can be formed by appropriately arranging white LEDs and green LEDs. Of course, the LEDs are arranged in the same manner as the color display device, and the pictograms or the like can be displayed. Further, it is preferable to use transparency as the cover 31 at this time. Thus, as the light source of the emergency light 1, by using the LED array, the -8-(6)(6)1339030 LED has a low power consumption characteristic, so that the same lighting time as before can be achieved even with a small battery capacity. The battery 1 can be miniaturized, and even the emergency lamp 1 can be reduced in size, weight, and cost. On the other hand, if the battery capacity is the same, the lighting can be continued for a long time, and the display for evacuation guidance during a disaster can be displayed for a long time. Moreover, the LED is a long-lived one, thereby extending the interval of maintenance of the so-called replacement light source, or reducing the number of repairs and reducing maintenance costs. Of course, it is also expected to perform maintenance for the maintenance of performance such as the life of the dirt or the battery, and the lighting check at the time of the disaster. Moreover, LEDs have high impact resistance and can avoid light source damage in the event of a disaster, and it is expected to continue lighting. In the emergency light 1 of the present invention shown in Fig. 1, a modulation/demodulation unit 4, a data memory unit 15 and a light modulation unit 16 are provided. Here, data is transmitted to the emergency light 1 by means of a communication method using a power line of an external power source. The modulation/demodulation unit 14 is configured to demodulate the modulated data transmitted by the voltage superimposed on the external power source, and is stored in the data memory 15 after demodulation. For example, 'by sending a data to be transmitted by the emergency light 1 in an emergency when using a power line from a computer or the like, and sending the data to an emergency light via an external power source other than during an emergency] can be easily stored in the data memory. Body 1 5 . Further, various information such as the data stored in the data memory 〖5 or the state of the emergency light I can be changed and transmitted via the power line. Thereby, it is also possible to remotely confirm the operation of rewriting the data or confirming the emergency light. Further, when the communication in the two directions is not performed, the modulation/demodulation unit 14 is configured only as a demodulation function. Further, when the data memory is to be stored in advance in an emergency, the modulation/demodulation unit 14 is not required. -9- (7) (7) 1339030 The data memory 1 5 can store the data sent in an emergency. This information is worthwhile for the low-power consumption. Also, it must be made that the data that is memorized will not be erased when the power is switched. For example, it is preferable to constitute a rewritable ROM ’ or an invariant RAM. When detecting that the switching unit 12 switches the power source from the external power source to the battery 1 1 or the like, the light modulation unit 16 reads the data stored in the data memory J 5 in an emergency, and modulates and overlaps. The power waveform supplied to the LED array 丨3. Thereby, the illuminating light of the LED array 13 is controlled by the optical modulation unit 16 to control the dot reduction or the amount of light. This allows for the transmission of data by light. Of course, in addition to the emergency, the data stored in the -memory memory 15 is modulated and supplied to the LED array 13 for data transmission. At this time, the information that must be transmitted in an emergency may be different. The portable terminal 2 is a PDA or a mobile phone having a camera, and includes a light receiving unit 21, a demodulation unit 22, a display unit 23, and the like. The demodulation unit 22 extracts a data signal modulated from the output electric signal from the light receiving unit 21, and demodulates the data signal to obtain the data. The obtained data can be used for various purposes, but is displayed on the display unit 23. As a result, the data transmitted from the emergency light 1 by the light is displayed on the display unit 23 in an emergency. For example, a character or an image such as a map of an emergency exit or an evacuation route provided on the floor may be displayed on the display unit 23. In addition, voice information can also be transmitted, and if a speaker is installed in the mobile phone, the sound information can be simply obtained. An example of the operation and use of the embodiment of the emergency light and emergency light wireless data transmission system of the present invention will be described. In the emergency light 1, the data sent in the emergency is stored in advance for the data memory. As a method of the 10th (8) (8) 1339030, the power line communication is used as described above, and the data of the waveform of the external power source is superimposed and transmitted, and the modulated data transmitted from the external power source is obtained by the emergency light 1. It is obtained by demodulation, or it can be carried out by storing the data in the ROM or the like in advance, and then mounting the ROM as a data element in the emergency light. For example, a memory card or the like may be installed. In the event of an emergency, the light modulation unit 16 reads the data from the data memory 15 and modulates it, superimposing on the power supply waveform supplied to the LED array 13. The LED array 13 is driven by the overlapped power of the modulated data, and the LED array 13 is capable of emitting 'and controlling the amount of light emitted or turned off, and the light can be sent out by the light.> Further, the holder of the portable terminal 2 is By accommodating the carried terminal 2 toward the emergency light 1 in an emergency, it is possible to receive data transmitted from the emergency light by light. For example, when you are in an emergency, you don't know where you are. If you take refuge in an emergency light, you don't know how much you need to take refuge. However, in the present invention, from the emergency light, it is possible to visually (or sound, etc.) obtain the name of the building or the number of floors, the map of the floor or the map of the evacuation route, and then only a few meters to the emergency exit, etc. More detailed information that emergency lights cannot get. Therefore, some degree of uneasiness is alleviated, and evacuation can be performed more agilely. The portable terminal 2 is more battery-driven, and thus can be effectively utilized in an emergency. Therefore, by using an emergency light that emits light without an external power source in an emergency, and the portable terminal 2 that does not require an external power supply, evacuation can be smoothly performed even when the external power source is turned off in an emergency. -11 - 1339030 (9) In the emergency light 1 of the present invention, the electric power required for the operation of the optical modulation unit 16 or the like is required, and the electric power required for the operation of the electronic circuit portion is extremely small as compared with the electric power for the light emission. Therefore, even with such a light-transmitting data transmission function, it is almost unnecessary to enhance the battery 11' of the emergency light I, for example, compared with a configuration in which electric waves or sounds are emitted in addition to light, and it is not necessary to additionally provide a significant suppression of power consumption, or The means used to send the information. For example, infrared rays cannot equally avoid power consumption, and an additional transmitter must be provided. From these simplifications of reducing power consumption and the device, it is advantageous to use data transmission according to the light of the LED light source. Of course, the emergency light 1 is illuminated by the illumination of the LED array 13 in the same manner as a general emergency light to display an emergency exit or an evacuation route, and the situation in which the person having the portable terminal 2 is effective in an emergency does not change. In order to control the amount of light emitted or to be extinguished for data transmission, such a change in the amount of light is not felt by the human eye' and does not impair the function as an emergency light. As described above, the characteristics of the LED can be utilized, and thus it is possible to exhibit a function superior to that of the prior emergency lamp. Further, the data transmission according to the emergency light 1 is not limited to an emergency. The information to be stored in the data memory 15 can also be transmitted by light frequently. In addition, data other than the emergency data is stored in the data memory 15, and when the optical modulation unit 16 changes the emergency and the data is not in an emergency, the information such as the surrounding business district information or the message can be transmitted. To the portable terminal 2. The emergency light 1 does not go out once it is lit, and is constantly lit regardless of the day and night. Therefore, the user of the portable terminal 2 can frequently obtain information from the emergency light I. Moreover, as described above, the content of the data memory is rewritten with -12-(10) (10) 1339030 using power line communication, and the content can be updated frequently, so that the data can be immediately and immediately outside the emergency. The transmission to the portable terminal 2 illustrates an example of obtaining data by power line communication in the above example and a case where data is stored in advance in the data memory 15. However, it is not limited thereto, and various methods can be used as a method of feeding the data to the emergency light I. Fig. 3 is a block diagram showing another embodiment of the emergency light and emergency light wireless data transmission system of the present invention. In the figure, 41 is an antenna, and 42 is a modulation/demodulation unit. In the example shown in Fig. 3, an example is shown in which the external light is transmitted by radio waves and received by the emergency light 1 and stored in the data memory 15. The data received by the antenna 41 is demodulated in the modulation and demodulation section 42, so that the data is stored in the data memory. Receiving such information is done outside of an emergency. When it is not in an emergency, it cannot accept power from an external power source, and therefore can receive data according to such radio waves. Of course, when performing broadcast type data transmission, the modulation demodulation unit 42 may have only a demodulation function. Further, in addition to the radio waves shown in Fig. 3, data can be transmitted in advance using a communication line other than a power line such as an optical fiber or a communication cable. Further, by utilizing the power line communication that does not represent the figure 1, it is not necessary to separately provide an antenna or other electric continuation temple, and there is an advantage of transmission of acceptable data. (Effect of the Invention) As apparent from the above description, according to the present invention, by using the LED as a light source, the high power efficiency of the LED feature can suppress the consumption of the battery-13-(11)(11)1339030, and can be realized. The miniaturization of the device according to the size of the battery or the long-term luminescence time. Moreover, since the life is long, the maintenance interval for replacing the light source and the like can be extended, and the maintenance cost can be reduced. In addition, the LED is excellent in impact resistance, and can provide an emergency light that can be used without damage during a disaster. · The LED has excellent response characteristics, and thus can be utilized by controlling the point or the amount of light. As the source of the ray-based data. The emergency light is equipped with a battery inside, and it can continue to emit light when the power is turned off by a disaster or the like. By using this illuminating light, it is possible to transmit various emergency information such as the location of the emergency exit or evacuation ladder stored in advance in an emergency or the evacuation route to the emergency exit. The function of transmitting data does not require more cost than the case of separately providing a transmitting device such as a battery or an infrared ray, and does not cause more power consumption, and thus does not impair the use as an emergency. The function of the illuminated emergency light "In addition, once the emergency light is turned on, it will not be turned off semi-permanently, and it will be placed in a conspicuous place because it is not affected by the atmosphere or the season. Therefore, not only emergency information but also general information such as surrounding advertisements or notifications can be transmitted, and it is expected to be frequently used outside of an emergency, and the additional price of the emergency light can be increased. According to the present invention, various effects can be exhibited in this way. [Brief Description of the Drawings] Fig. 1 is a block diagram showing an embodiment of an emergency light and emergency light wireless data transmission system according to the present invention. Fig. 2 is an explanatory view showing an example of an ED array to be a light source. -14. (12) 1339030 Fig. 3 is a block diagram showing another embodiment of the emergency light and emergency light wireless data transmission system of the present invention. (Description of the mark) 1 : Emergency light
2 :攜帶終端 Π :電池 12 :切換部 1 3 : L E D 陣歹 IJ 1 4 :調變解調部 1 5 :資料記憶體 1 6 :光調變部 21 :受光部 22 :解調部2 : Carrying terminal Π : Battery 12 : Switching unit 1 3 : L E D 歹 IJ 1 4 : Modulation and demodulation unit 1 5 : Data memory 1 6 : Light modulation unit 21 : Light receiving unit 22 : Demodulation unit
23 :顯示部 31 :蓋體 4 1 :天線 42 :調變解調部 -15-23 : Display portion 31 : Cover 4 1 : Antenna 42 : Modulation and demodulation unit -15-