JP2002190776A - Optical data transmission system - Google Patents
Optical data transmission systemInfo
- Publication number
- JP2002190776A JP2002190776A JP2000387660A JP2000387660A JP2002190776A JP 2002190776 A JP2002190776 A JP 2002190776A JP 2000387660 A JP2000387660 A JP 2000387660A JP 2000387660 A JP2000387660 A JP 2000387660A JP 2002190776 A JP2002190776 A JP 2002190776A
- Authority
- JP
- Japan
- Prior art keywords
- data transmission
- transmission system
- frequency
- information
- optical data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 230000003287 optical effect Effects 0.000 title claims abstract description 22
- 238000010586 diagram Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/1149—Arrangements for indoor wireless networking of information
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、光データ伝送シス
テムに係り、特に、ＬＥＤ照明装置を使用した光伝送シ
ステムの関する。[0001] 1. Field of the Invention [0002] The present invention relates to an optical data transmission system, and more particularly, to an optical transmission system using an LED lighting device.
【０００２】[0002]
【従来の技術】従来よりこの種のデータ伝送システム
は、赤外線を利用したシステムであり、図５に示すよう
に、送受信機５００を有する室内集中制御局５０と、送
受信機６００を有する複数の室内端末６０とからなり、
それぞれの送受信機５００，６００は、所定の波長の赤
外線を受光してデータ信号を取り出すようになってい
る。2. Description of the Related Art Conventionally, this type of data transmission system is a system using infrared rays. As shown in FIG. Consists of a terminal 60,
Each of the transceivers 500 and 600 receives an infrared ray having a predetermined wavelength and extracts a data signal.
【０００３】各送受信機５００，６００は、このデータ
信号を取り出すために、一般的には、赤外線受光素子と
赤外線受光用光学フィルタとを組み合わせた受光部（図
示せず）によって、目的とする波長の赤外線を受信して
いる。In order to extract the data signal, each of the transceivers 500 and 600 generally uses a light receiving section (not shown) combining an infrared light receiving element and an infrared light receiving optical filter to obtain a desired wavelength. Receiving infrared light.
【０００４】このようなデータ伝送システムのネットワ
ーク形態が、サテライト型の場合は、図４，５に示すよ
うに、室内集中制御局５０が天井に設置され、この室内
集中制御局５０と通信する複数の室内端末６０が、常に
天井の室内集中制御局５０に向けられている。When the network configuration of such a data transmission system is a satellite type, a plurality of indoor central control stations 50 are installed on the ceiling as shown in FIGS. Is always directed to the indoor central control station 50 on the ceiling.
【０００５】一方、室内集中制御局５０を装備しない、
天井反射サテライト型（特開平２−１６８２２具）［図
示せず］では、各端末の送受信機が天井のある領域に向
けられ、赤外線の送受信を行っている。On the other hand, if the indoor central control station 50 is not provided,
In the ceiling-reflective satellite type (Japanese Unexamined Patent Publication No. 2-16822) [not shown], the transceiver of each terminal is directed to an area where the ceiling is located, and transmits and receives infrared rays.
【０００６】室内集中制御局５０を備えたサテライト型
光データ伝送システムでは、天井に必ず室内集中制御局
５０を設ける必要があり、既存の室内に容易に設置する
ことが困難であり、室内灯とは別物なので室内の美観を
損なう難点があった。[0006] In the satellite type optical data transmission system provided with the indoor central control station 50, the indoor central control station 50 must be provided on the ceiling without any difficulty, and it is difficult to easily install the indoor central control station in an existing room. Was a different thing, so there was a drawback that spoiled the aesthetics of the room.
【０００７】また、天井反射サテライト型は、設置は比
較的簡単であるが、天井を直接赤外線の反射媒体に利用
するので、送受信効率が悪く、通信品質が劣化する難点
があった。The ceiling-reflective satellite type is relatively easy to install, but since the ceiling is directly used as a reflection medium for infrared rays, the transmission / reception efficiency is poor and the communication quality is deteriorated.
【０００８】[0008]
【発明が解決しようとする課題】本出願人は、上記問題
点を解決するために、既存の室内設備、特に蛍光灯の光
を利用して、容易に光データ伝送を構築する光データ伝
送システムを提供することを提案し出願している（特願
平１１−１６２１７９号）。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present applicant has developed an optical data transmission system for easily constructing optical data transmission using existing indoor equipment, in particular, light of a fluorescent lamp. (Japanese Patent Application No. 11-162179).
【０００９】しかしながら、蛍光灯を利用するシステム
では、発光周波数に通信に不要な多くの周波数の光が含
まれるので、受信装置にこれらを取り除く高度な光学フ
ィルタが必要であり、装置が複雑となる欠点があった。However, in a system using a fluorescent lamp, since the light emission frequency includes light of many frequencies unnecessary for communication, a sophisticated optical filter for removing these is required in the receiving device, and the device becomes complicated. There were drawbacks.
【００１０】本発明は、このような従来の難点を解決す
るためになされたもので、近年急速に普及されつつあ
る、ＬＥＤ照明装置をそのままデータ通信に利用して、
容易に光データ伝送を構築できる光データ伝送システム
を提供することを目的とする。The present invention has been made in order to solve such a conventional difficulty, and the LED lighting device, which has been rapidly spreading in recent years, is directly used for data communication.
An object of the present invention is to provide an optical data transmission system capable of easily constructing optical data transmission.
【００１１】[0011]
【課題を解決するための手段】このような目的を達成す
るために、本発明は、主端末からのデジタル信号を必要
に応じてＬＥＤで構成された室内照明装置に送信するデ
ータ送信装置と、このデジタル信号に応じて［０］情報
には自ら外部に発行するする第１の周波数Ｆ１を対応さ
せ、［１］情報には第２の周波数Ｆ２を対応させて、こ
れらの周波数Ｆ１，Ｆ２をＦＳＫ変調して外部に出力す
るＬＥＤ照明装置と、ＬＥＤ照明装置からの信号を受信
して連結接続された端末に情報を送る受信装置とを具備
した。In order to achieve the above object, the present invention provides a data transmitting device for transmitting a digital signal from a main terminal to an indoor lighting device composed of LEDs as required, According to this digital signal, [0] information is associated with a first frequency F1 to be issued to the outside, and [1] information is associated with a second frequency F2. An LED lighting device that outputs FSK-modulated data to the outside, and a receiving device that receives a signal from the LED lighting device and sends information to a connected terminal.
【００１２】[0012]
【発明の実施形態】以下、本発明の光データ伝送システ
ムの実施例の一形態について図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an optical data transmission system according to the present invention will be described below with reference to the drawings.
【００１３】本発明の光データ伝送システムは、図１に
示すように、天井に設置されたＬＥＤで構成された室内
照明装置１０と、床側に設置され室内照明装置１０に、
端末２０からの情報をデジタル信号で送信するデータ送
信装置３０と、室内照明装置１０からの信号を受信して
連接装備された端末に情報を送る受信装置４０とを備え
ている。As shown in FIG. 1, the optical data transmission system of the present invention includes an indoor lighting device 10 composed of LEDs installed on the ceiling, and an indoor lighting device 10 installed on the floor side.
The system includes a data transmitting device 30 for transmitting information from the terminal 20 as a digital signal, and a receiving device 40 for receiving a signal from the interior lighting device 10 and transmitting the information to a terminal equipped with connection.
【００１４】データ送信装置３０は、例えば、表示装置
２０とパーソナルコンピュータ（ＰＣ）３０であり、送
りたい情報をデジタル信号Ｄで室内照明装置１０に送信
する機能を持っている。The data transmitting device 30 is, for example, a display device 20 and a personal computer (PC) 30 and has a function of transmitting desired information to the indoor lighting device 10 as a digital signal D.
【００１５】室内照明装置１０は、図３に示すように周
波数Ｆ１を発信する発信器１０Ａ１と周波数Ｆ２を発信
する発信器１０Ａ２からなる発信手段１０Ａと、前記デ
ジタル信号Ｄの情報［０］，［１］に対応して、発信器
１０Ａ１，１０Ａ２を択一的に選択するスイッチ部（電
子スイッチ）１０Ｂと、室内照明を兼ねたＬＥＤ発光装
置１０Ｃとを備えている。As shown in FIG. 3, the interior lighting device 10 includes a transmitter 10A including a transmitter 10A1 transmitting a frequency F1 and a transmitter 10A2 transmitting a frequency F2, and information [0], [0] of the digital signal D. [1], a switch unit (electronic switch) 10B for selectively selecting the transmitters 10A1 and 10A2, and an LED light emitting device 10C also serving as indoor lighting.
【００１６】受信装置４０は、図３に示すように室内照
明装置１０から発信されたＦＳＫ変調された信号Ｆを受
信する受光器４２とＦＳＫ信号をデジタル信号に変換す
るＦＳＫ受信機４１とからなる。As shown in FIG. 3, the receiver 40 includes a light receiver 42 for receiving the FSK-modulated signal F transmitted from the interior lighting device 10 and an FSK receiver 41 for converting the FSK signal into a digital signal. .
【００１７】この受信機４０には表示装置８０を備えた
端末（ＰＣ）９０が設けられており、これによって、受
信した情報を表示するようになっている。The receiver 40 is provided with a terminal (PC) 90 provided with a display device 80, so that the received information is displayed.
【００１８】ここで、デジタル信号−ＦＳＫ変調の一例
を図２に基づいて説明する。Here, an example of digital signal-FSK modulation will be described with reference to FIG.
【００１９】例えば、発信器１０Ａ１の周波数Ｆ１を２
０［ｋＨｚ］，発信器１０Ａ２の周波数Ｆ２を５［ｋＨ
ｚ］とすれば、デジタル信号ＤがＴ１時間［０］，Ｔ２
時間［１］，Ｔ３時間［０］，Ｔ４時間［１］であれ
ば、図２のように、Ｔ１：Ｆ１，Ｔ２：Ｆ２，Ｔ３：Ｆ
１，Ｔ４：Ｆ２となり、これらを重畳してＦＳＫ変調し
てデジタル符号を室内照明装置１０を介して受信装置に
送信するようになっている。For example, if the frequency F1 of the transmitter 10A1 is 2
0 [kHz] and the frequency F2 of the transmitter 10A2 is set to 5 [kHz].
z], the digital signal D is T1 time [0], T2
For time [1], T3 time [0], and T4 time [1], as shown in FIG. 2, T1: F1, T2: F2, T3: F
1, T4: F2, which are superimposed and FSK modulated to transmit a digital code to the receiving device via the indoor lighting device 10.
【００２０】受信器４２には、必要な周波数の信号だけ
を透過させる、光学フィルタを装備てしてもよい。The receiver 42 may be equipped with an optical filter that transmits only a signal of a required frequency.
【００２１】また、スイッチ部１０Ｂは、電子スイッチ
に限らず、同様の動作をするもので有ればどのようなも
のでもよい。The switch section 10B is not limited to an electronic switch, but may be any switch that performs the same operation.
【００２２】ＦＳＫ変調の周波数は、これに限るもので
はなく、異なる周波数であればよい。The frequency of the FSK modulation is not limited to this, but may be any different frequency.
【００２３】この光データ伝送システムによれば、特
に、ＬＥＤ照明装置をそのまま利用して、照明とデータ
通信を同時に行うことが出来るので、容易に光データ伝
送システムを構築出来る。According to this optical data transmission system, in particular, illumination and data communication can be performed simultaneously using the LED lighting device as it is, so that an optical data transmission system can be easily constructed.
【００２４】また、ＬＥＤ照明装置は、蛍光灯照明に比
べ、設計の自由度が大きく、テーマパークや長い通路、
薄暗い博物館等で様々な場所に利用できる利点がある。Further, the LED lighting device has a greater degree of freedom in design than fluorescent light lighting, and can be used for theme parks, long passages, and the like.
There is an advantage that it can be used in various places such as a dim museum.
【００２５】[0025]
【発明の効果】本発明は、以上のように構成されている
ので、ＬＥＤ照明装置を利用して、容易に光データ伝送
を構築できる光データ伝送システムを提供できる。As described above, the present invention can provide an optical data transmission system capable of easily constructing optical data transmission using an LED lighting device.
【図１】本発明の光データ伝送システムの概要を示す説
明図。FIG. 1 is an explanatory diagram showing an outline of an optical data transmission system of the present invention.
【図２】本発明のＦＳＫ変調を示す説明図。FIG. 2 is an explanatory diagram showing FSK modulation according to the present invention.
【図３】本発明の室内照明装置の概略説明図。FIG. 3 is a schematic explanatory view of an indoor lighting device of the present invention.
【図４】従来の光データ伝送システムの概要を示す説明
図。FIG. 4 is an explanatory diagram showing an outline of a conventional optical data transmission system.
【図５】従来の光データ伝送システムの送受信装置を示
す説明図。 １０・・・・・・・室内照明装置 ３０・・・・・・・データ送信機 ４０・・・・・・・受信装置 Ｄ・・・・・・・・デジタル信号 Ｆ・・・・・・・・ＦＳＫ変調された信号FIG. 5 is an explanatory diagram showing a transmission / reception device of a conventional optical data transmission system. 10 Indoor lighting device 30 Data transmitter 40 Receiver D Digital signal F ..FSK-modulated signals
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０５Ｂ 37/02 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H05B 37/02
Claims (1)
ＬＥＤで構成された室内照明装置に送信するデータ送信
装置と、このデジタル信号に応じて［０］情報には自ら
外部に発行するする第１の周波数Ｆ１を対応させ、
［１］情報には第２の周波数Ｆ２を対応させて、これら
の周波数Ｆ１，Ｆ２をＦＳＫ変調して外部に出力するＬ
ＥＤ照明装置と、ＬＥＤ照明装置からの信号を受信して
連結接続された端末に情報を送る受信装置とを具備した
光伝送システム。1. A data transmitting device for transmitting a digital signal from a main terminal to an indoor lighting device composed of an LED as required, and automatically issuing [0] information to the outside according to the digital signal. The first frequency F1 is made to correspond,
[1] L corresponding to the second frequency F2 corresponding to the information, and FSK-modulating these frequencies F1 and F2 and outputting them to the outside
An optical transmission system comprising: an ED lighting device; and a receiving device that receives a signal from the LED lighting device and sends information to a connected terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000387660A JP2002190776A (en) | 2000-12-20 | 2000-12-20 | Optical data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000387660A JP2002190776A (en) | 2000-12-20 | 2000-12-20 | Optical data transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002190776A true JP2002190776A (en) | 2002-07-05 |
Family
ID=18854548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000387660A Pending JP2002190776A (en) | 2000-12-20 | 2000-12-20 | Optical data transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002190776A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004038962A1 (en) * | 2002-10-24 | 2004-05-06 | Nakagawa Laboratories, Inc. | Illumination light communication device |
| JP2005094247A (en) * | 2003-09-16 | 2005-04-07 | Sony Corp | Communication apparatus and method, program, and communication system |
| JP2005217330A (en) * | 2004-01-30 | 2005-08-11 | Matsushita Electric Works Ltd | Light emitting diode (led) lighting system |
| JP2007233618A (en) * | 2006-02-28 | 2007-09-13 | Mitsumi Electric Co Ltd | Sensor network system |
| JP2007274566A (en) * | 2006-03-31 | 2007-10-18 | Nakagawa Kenkyusho:Kk | Illumination light communication device |
| JP2008071765A (en) * | 2007-11-01 | 2008-03-27 | Sharp Corp | Illumination device equipped with optical transmission mechanism |
| US7389051B2 (en) | 2003-06-03 | 2008-06-17 | Sharp Kabushiki Kaisha | Illuminator including optical transmission mechanism |
| DE102009041623A1 (en) | 2008-09-18 | 2010-03-25 | Sennheiser Electronic Gmbh & Co. Kg | Reading lamp for use on seat of e.g. vehicle, has illumination unit with illuminating diode for emitting visible and/or infrared light, and modulation unit modulating light emission of illuminating diode depending on input signal |
| JP2012004733A (en) * | 2010-06-15 | 2012-01-05 | Tamura Seisakusho Co Ltd | Acoustic system using optical communication |
| JP2016513426A (en) * | 2013-02-22 | 2016-05-12 | クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ | Method and apparatus for power efficient joint dimming and visible light communication |
-
2000
- 2000-12-20 JP JP2000387660A patent/JP2002190776A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7929867B2 (en) | 2002-10-24 | 2011-04-19 | Nakagawa Laboratories, Inc. | Emergency lamp and wireless emergency lamp data transmission system |
| US7583901B2 (en) | 2002-10-24 | 2009-09-01 | Nakagawa Laboratories, Inc. | Illuminative light communication device |
| WO2004038962A1 (en) * | 2002-10-24 | 2004-05-06 | Nakagawa Laboratories, Inc. | Illumination light communication device |
| US7734182B2 (en) | 2003-06-03 | 2010-06-08 | Sharp Kabushiki Kaisha | Illuminator including optical transmission mechanism |
| US7389051B2 (en) | 2003-06-03 | 2008-06-17 | Sharp Kabushiki Kaisha | Illuminator including optical transmission mechanism |
| JP2005094247A (en) * | 2003-09-16 | 2005-04-07 | Sony Corp | Communication apparatus and method, program, and communication system |
| JP4599819B2 (en) * | 2003-09-16 | 2010-12-15 | ソニー株式会社 | Display device, light receiving device, communication method, program, and communication system |
| JP4715096B2 (en) * | 2004-01-30 | 2011-07-06 | パナソニック電工株式会社 | LED lighting device |
| JP2005217330A (en) * | 2004-01-30 | 2005-08-11 | Matsushita Electric Works Ltd | Light emitting diode (led) lighting system |
| JP2007233618A (en) * | 2006-02-28 | 2007-09-13 | Mitsumi Electric Co Ltd | Sensor network system |
| WO2007119610A1 (en) * | 2006-03-31 | 2007-10-25 | Nakagawa Laboratories, Inc. | Illuminating light communication device |
| JP2007274566A (en) * | 2006-03-31 | 2007-10-18 | Nakagawa Kenkyusho:Kk | Illumination light communication device |
| JP2008071765A (en) * | 2007-11-01 | 2008-03-27 | Sharp Corp | Illumination device equipped with optical transmission mechanism |
| JP4684278B2 (en) * | 2007-11-01 | 2011-05-18 | シャープ株式会社 | Illumination device with light transmission mechanism |
| US8687977B2 (en) | 2008-09-18 | 2014-04-01 | Sennheiser Electronic Gmbh & Co. Kg | Reading lamp |
| DE102009041623A1 (en) | 2008-09-18 | 2010-03-25 | Sennheiser Electronic Gmbh & Co. Kg | Reading lamp for use on seat of e.g. vehicle, has illumination unit with illuminating diode for emitting visible and/or infrared light, and modulation unit modulating light emission of illuminating diode depending on input signal |
| JP2012004733A (en) * | 2010-06-15 | 2012-01-05 | Tamura Seisakusho Co Ltd | Acoustic system using optical communication |
| JP2016513426A (en) * | 2013-02-22 | 2016-05-12 | クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ | Method and apparatus for power efficient joint dimming and visible light communication |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7352972B2 (en) | Method and apparatus for the zonal transmission of data using building lighting fixtures | |
| EP1633060B1 (en) | Light communication system and illumination apparatus therefor | |
| US7446671B2 (en) | Method of configuration a wireless-controlled lighting system | |
| US4977618A (en) | Infrared data communications | |
| CN100539790C (en) | The initialization of wireless-controlled lighting systems | |
| US8565607B2 (en) | Visible light multiplex communication system | |
| US8331790B2 (en) | LED light interior room and building communication system | |
| JP2002290335A (en) | Optical space transmitter | |
| US20110299854A1 (en) | Light Bulb with IR Transmitter | |
| US20140285091A1 (en) | Method and apparatus for the zonal transmission of data using building lighting fixtures | |
| US9577760B2 (en) | Pulsed light communication key | |
| US20040032226A1 (en) | Automatic configuration systems and methods for lighting and other applications | |
| JP2001507876A (en) | Remote control and determination of electrical device status | |
| CN102326342A (en) | Apparatus and method for interference mitigation and channel selection for visible light communication | |
| HK1037769A1 (en) | Tricolor led display system having audio output. | |
| JP2002190776A (en) | Optical data transmission system | |
| EP1345341A2 (en) | Optical transceiver for data transfer and control applications | |
| US5278536A (en) | Electromagnetic radiation node for use in a network and lighting element incorporating such a node | |
| WO2002019573A3 (en) | System and method for transmitting information modulated radio frequency signals using infrared transmission | |
| EP1062736B1 (en) | Network-communications link | |
| JPH11127170A (en) | Communication method using fluorescent light and its communication equipment | |
| JP2000349710A (en) | Optical data transmission system | |
| EP1398987A9 (en) | Wireless communication system with mobile radio transceivers selection function | |
| KR20170057115A (en) | Apparatus for visible light communication and method for the same | |
| JPH05244662A (en) | Home bus system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040625 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050902 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050909 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20060106 |