CN102457331A - Method for utilizing LED illumination light to realize wireless local area network communication - Google Patents
Method for utilizing LED illumination light to realize wireless local area network communication Download PDFInfo
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- CN102457331A CN102457331A CN2010105185275A CN201010518527A CN102457331A CN 102457331 A CN102457331 A CN 102457331A CN 2010105185275 A CN2010105185275 A CN 2010105185275A CN 201010518527 A CN201010518527 A CN 201010518527A CN 102457331 A CN102457331 A CN 102457331A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention relates to a method for utilizing LED illumination light to realize wireless local area network communication, wherein the method is applied to a wireless local area network communication system. The wireless local area network communication system comprises an access terminal photoelectric transceiver, an LED lamp set and a user terminal photoelectric transceiver. The method comprises the following steps that: the access terminal photoelectric transceiver modulates data downloaded by an access terminal router on LED lights of the LED lamp set at a data rate that is greater than 1M bps; and the user terminal photoelectric transceiver receives the modulated LED lights that are sent by the LED lamp set and then the modulated LED lights are converted into ones with a level form and frequency, wherein the level form and the frequency can be accepted by a user terminal router. According to the invention, the method has the following beneficial effects that: data transmission as well as illumination and energy conservation can be realized simultaneously; because light waves are employed to carry out data transmission, there is no electromagnetic interference of radio frequency; because the light waves can not penetrate a wall, security of data transmission is strong; and no precious radio frequency resources are occupied, so that there is no need to apply for a frequency license.
Description
Technical field
The present invention relates to the Internet communication technology field, specifically is the method that a kind of LED of utilization illumination light realizes wireless LAN communication.
Background technology
Utilizing the Wi-Fi technology to constitute WLAN is present main internet wireless communication plan, and wireless data transmission rate also is increasingly high.And aspect optical communication; At present be application mostly with aspects such as infrared communication realization remote controls; And the FSO that grew up with the laser point point to-point communication in the last few years (Free Space Optical; FSO) technology just progressively starts the light wireless network epoch, and FSO is the outdoor remote point-to-point laser transmission technology of comparative maturity.
On the other hand, the development of LED luminaire is advanced by leaps and bounds, and the LED illuminating lamp has energy-efficient characteristics, and price is also more and more lower.The LED lamp is owing to have advantages such as brightness height, life-span length, stable performance, the saving energy, and it will become follow-on means of illumination.The modulating characteristic of LED-based high power and high frequency FSO, the LED illuminator also has the ability of transmission signals.Compare with traditional infrared and radio communication, the LED visible light communication system has transmitting power height, no electromagnetic interference, need not to apply for frequency spectrum resource and the indoor advantages such as data leak that can not occur.Therefore, the LED visible light communication system has significant Research Significance and bigger development prospect, has been acknowledged as a kind of emerging short distance high-speed radiocommunication system.
Utilize the LED visible light communication can realize that energy-saving illumination and optics local internet take into account, do not have the interference of wireless electromagnetic, advantage is obvious.At present, each country is striving for and how to utilize energy-conservation LED lamp to carry out light wireless communication, realizes the light WLAN, does not regrettably also have at present light WLAN product truly.
Summary of the invention
The technical problem that the present invention will solve provides the method that a kind of LED of utilization illumination light realizes wireless LAN communication.
A kind of method of utilizing the LED illumination light to realize wireless LAN communication; Be applied in the wireless lan communication system; Said wireless lan communication system comprises incoming end optoelectronic transceiver equipment, LED lamp group and user side optoelectronic transceiver equipment, and this method comprises the steps:
Incoming end optoelectronic transceiver equipment uses the data rate greater than 1M bps to be modulated on the LED light of LED lamp group the data that the incoming end router passes down;
User side optoelectronic transceiver equipment receives the LED light after ovennodulation that LED lamp group is sent, and the LED light after will modulating then converts user side router receptible level form of institute and frequency into.
The present invention has following beneficial effect:
1. in transfer of data, can realize lighting energy saving, and human eye does not recognize high frequency flicker;
2. owing to adopt light wave to carry out the data transmission, do not have the electromagnetic interference of wireless frequency, thereby realize the green product that country very payes attention to;
3. because light wave can not penetrate wall, strong security;
4. do not take valuable radio frequency resources, need not the demand frequency license;
5. owing to there has not been frequency interferences, can be used on the place that those fear Electromagnetic Interference, as on hospital, the aircraft, instrument and equipment laboratory etc.
Description of drawings
Fig. 1 uses the present invention to utilize the LED illumination light to realize the structural representation of wireless lan communication system of the method for wireless LAN communication.
Among the figure: 1-incoming end router; 2-incoming end optoelectronic transceiver equipment; 3-LED lamp group; 4-user side optoelectronic transceiver equipment; 7-user side router; 8-user side work station; 20-LED high-speed driving module; The 21-power supply; 22,33,53, the 61-signaling interface; The 23-LED high-speed driving circuit; 30-infrared LED receiver module; The 31-Infrared Detectors; 32, the 52-low noise amplifier circuit; 50-visible light LED receiver module; The 51-LED visible-light detector; 60-infrared LED sending module; 62-infrared LED drive circuit.
Embodiment
To combine the accompanying drawing among the present invention below, technical scheme of the present invention will be carried out clear, intactly description.
The present invention utilizes the LED illumination light to realize the method for wireless LAN communication; Be applied in the wireless lan communication system; Fig. 1 is the structural representation of said wireless lan communication system, comprises incoming end optoelectronic transceiver equipment 2, LED lamp group 3 and user side optoelectronic transceiver equipment 4.Among the present invention, the equipment that connects master network is referred to as incoming end optoelectronic transceiver equipment 2, and the equipment that connects the local area network (LAN) that user side work station or several computers be linked to be then is called user side optoelectronic transceiver equipment 4.
Said incoming end optoelectronic transceiver equipment 2 comprises LED high-speed driving module 20 and infrared LED receiver module 30.LED high-speed driving module 20 comprises power supply 21, signaling interface 22 and LED high-speed driving circuit 23; Wherein power supply 21 provides operating voltage for signaling interface 22 and LED high-speed driving circuit 23; Signaling interface 22 is used for and master network device; For example the incoming end router one connects, and the data flow that network (being the incoming end router one) is passed down converts LED lamp receptible level form of institute and frequency to, and LED high-speed driving circuit 23 is used for the input electrode that is carried in LED lamp group 3 through signaling interface 22 data converted stream; Thereby make LED lamp group 3 send the illumination light of flicker at a high speed, realize carrying under the network data reaching user side.Wherein LED high-speed driving circuit 23 usefulness are modulated the LED visible light greater than the data rate of 1M bps, make human eye experience the flicker less than light fully.
Infrared LED receiver module 30 comprises Infrared Detectors 31, low noise amplifier circuit 32 and signaling interface 33; Infrared Detectors 31 is used to receive the infrared light of the process data-modulated that user side optoelectronic transceiver equipment 4 sends; Low noise amplifier circuit 32 is used for the carrying out of the infrared light of Infrared Detectors 31 receptions further amplified; Signaling interface 53 is used for the infrared light after amplifying is converted into the signal of telecommunication of network data form, realizes uploading of data.
In order not influence the LED response time, the LED in the LED lamp group 3 can not select the LED bulb that scribbles fluorescent material for use; In order to concentrate LED luminous energy and intensity as far as possible, the LED in the LED lamp group 3 can select the little LED of dispersion angle for use and use a light shield, is transmitted into the infrared component of avoiding the LED visible light on the Infrared Detectors 31 of infrared LED receiver module 30 in addition.
Said user side optoelectronic transceiver equipment 4 comprises visible light LED receiver module 50 and infrared LED sending module 60.Visible light LED receiver module 50 comprises LED visible-light detector 51, low noise amplifier circuit 52 and signaling interface 53; LED visible-light detector 51 is used to receive the illumination light that LED lamp group 3 is sent; Low noise amplifier circuit 52 is used for the carrying out of the illumination light of LED visible-light detector 51 receptions further amplified, and signaling interface 53 is used for converting the illumination light after amplifying into 7 receptible level forms of user side router and frequency.LED visible-light detector 51 can be selected the high-power detector of band amasthenic lens for use.
Infrared LED sending module 60 comprises signaling interface 61 and infrared LED drive circuit 62; Upload data-signal after user side router 7 inputs to said infrared LED sending module 60 when work station 8; Signaling interface 61 is used for converting 30 receptible level of infrared LED receiver module and frequency to uploading data-signal, and infrared LED drive circuit 62 is used for process signaling interface 61 data converted are modulated on the infrared light and sends.Generally speaking, infrared LED sending module 60 has lens and has in certain angle of divergence 30 degree, and aims at Infrared Detectors 31 as far as possible, because Infrared Transmission distance is limited, is generally the indoor distances about 3 meters to 5 meters.
The present invention utilizes the LED illumination light to realize the method for wireless LAN communication; Be applied in the above-mentioned wireless lan communication system; Said wireless lan communication system comprises incoming end optoelectronic transceiver equipment 2, LED lamp group 3 and user side optoelectronic transceiver equipment 4; Incoming end optoelectronic transceiver equipment 2 is connected with the incoming end router one, and user side optoelectronic transceiver equipment 4 is connected with user side router 7, and this method comprises the steps:
Incoming end optoelectronic transceiver equipment 2 uses the data rate greater than 1Mbps to be modulated on the LED light of LED lamp group 3 data that the incoming end router one passes down;
User side optoelectronic transceiver equipment 4 receives the LED light after ovennodulation that LED lamp group 3 is sent, and the LED light after will modulating then converts 7 receptible level forms of user side router and frequency into.
This method also comprises the steps:
User side optoelectronic transceiver equipment 4 will be uploaded data signal modulation and on infrared light, send;
Incoming end optoelectronic transceiver equipment 2 receives the infrared light of the process data-modulated of user side optoelectronic transceiver equipment 4 transmissions, then infrared light is converted into the signal of telecommunication of network data form.
Scheme according to the invention has realized the optical communication transmission link of full duplex; Promptly be equivalent to script is changed into LED light wireless connections link with the grid line ways of connecting; Specifically be that each link all has a pair of optoelectronic transceiver equipment (incoming end optoelectronic transceiver equipment 2 and user side optoelectronic transceiver equipment 4); Wherein an end incoming end is that for example ruddiness, blue light etc. or two, three primary colors illumination white light realize that light carries data transmission transmission, receives and then realizes with Infrared Detectors with monochromatic light.
The present invention has following beneficial effect:
1, in transfer of data, can realize lighting energy saving, and human eye does not recognize high frequency flicker;
2, owing to adopt light wave to carry out the data transmission, do not have the electromagnetic interference of wireless frequency, thereby realize the green product that country very payes attention to;
3, because light wave can not penetrate wall, strong security;
4, do not take valuable radio frequency resources, need not the demand frequency license;
5, owing to there has not been frequency interferences, can be used on the place that those fear Electromagnetic Interference, as on hospital, the aircraft, instrument and equipment laboratory etc.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who belongs to the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (8)
1. method of utilizing the LED illumination light to realize wireless LAN communication; Be applied in the wireless lan communication system; Said wireless lan communication system comprises incoming end optoelectronic transceiver equipment (2), LED lamp group (3) and user side optoelectronic transceiver equipment (4), and it is characterized in that: this method comprises the steps:
Incoming end optoelectronic transceiver equipment (2) uses the data rate greater than 1M bps to be modulated on the LED light of LED lamp group (3) data that incoming end router (1) passes down;
User side optoelectronic transceiver equipment (4) receives the LED light after ovennodulation that LED lamp group (3) is sent, and the LED light after will modulating then converts user side router (7) receptible level form of institute and frequency into.
2. the method for claim 1 is characterized in that: comprise the steps: that also user side optoelectronic transceiver equipment (4) will upload data signal modulation and on infrared light, send; Incoming end optoelectronic transceiver equipment (2) receives the infrared light of the process data-modulated of user side optoelectronic transceiver equipment (4) transmission, then infrared light is converted into the signal of telecommunication of network data form.
3. the method for claim 1; It is characterized in that: said incoming end optoelectronic transceiver equipment (2) comprises LED high-speed driving module (20) and infrared LED receiver module (30); LED high-speed driving module (20) comprises power supply (21), signaling interface (22) and LED high-speed driving circuit (23), and infrared LED receiver module (30) comprises Infrared Detectors (31), low noise amplifier circuit (32) and signaling interface (33).
4. method as claimed in claim 3 is characterized in that: the signaling interface (22) of LED high-speed driving module (20) is connected with incoming end router (1), and the data flow that network is passed down converts LED lamp receptible level form of institute and frequency to; LED high-speed driving circuit (23) will pass through signaling interface (22) data converted stream and be carried on the input electrode of LED lamp group (3).
5. method as claimed in claim 3; It is characterized in that: Infrared Detectors (31) receives the infrared light of the process data-modulated of user side optoelectronic transceiver equipment (4) transmission; Low noise amplifier circuit (32) further amplifies the carrying out of the infrared light that Infrared Detectors (31) receives; Infrared light after signaling interface (53) will amplify converts the signal of telecommunication of network data form into, realizes uploading of data.
6. method as claimed in claim 3; It is characterized in that: said user side optoelectronic transceiver equipment (4) comprises visible light LED receiver module (50) and infrared LED sending module (60); Visible light LED receiver module (50) comprises LED visible-light detector (51), low noise amplifier circuit (52) and signaling interface (53), and infrared LED sending module (60) comprises signaling interface (61) and infrared LED drive circuit (62).
7. method as claimed in claim 6; It is characterized in that: the signaling interface (61) of infrared LED sending module (60) will be uploaded data-signal and convert infrared LED receiver module (30) receptible level of institute and frequency to, and infrared LED drive circuit (62) will pass through signaling interface (61) data converted and be modulated on the infrared light and send.
8. method as claimed in claim 6; It is characterized in that: LED visible-light detector (51) receives the illumination light that LED lamp group (3) is sent; Amplifying of the illumination light that low noise amplifier circuit (52) receives LED visible-light detector (51), the illumination light after signaling interface (53) will amplify convert into user side router (7) receptible level form and frequency.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010518527.5A CN102457331B (en) | 2010-10-25 | 2010-10-25 | Method for utilizing LED illumination light to realize wireless local area network communication |
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| CN201010518527.5A CN102457331B (en) | 2010-10-25 | 2010-10-25 | Method for utilizing LED illumination light to realize wireless local area network communication |
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| CN102457331A true CN102457331A (en) | 2012-05-16 |
| CN102457331B CN102457331B (en) | 2014-05-21 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811091A (en) * | 2012-07-06 | 2012-12-05 | 北京邮电大学 | Visible light communication-based broadband access device and method |
| CN103220041A (en) * | 2013-04-22 | 2013-07-24 | 南京邮电大学 | Wireless router access system based on visible light |
| CN103595471A (en) * | 2013-12-02 | 2014-02-19 | 吴东辉 | Method, system and device of space optical communication |
| CN103618571A (en) * | 2013-12-02 | 2014-03-05 | 吴东辉 | Method and system for transmitting information through lighting sources |
| CN104699650A (en) * | 2015-03-18 | 2015-06-10 | 贵州遵义鑫阳电子科技有限公司 | Method of embedded system for providing IP access through USB interface |
| CN104737473A (en) * | 2012-10-16 | 2015-06-24 | 皇家飞利浦有限公司 | Method, light module and receiving unit for light coding |
| CN104993874A (en) * | 2015-08-10 | 2015-10-21 | 中国人民解放军信息工程大学 | Visible light communication tunnel lamp used in mine pits |
| CN105049119A (en) * | 2015-09-09 | 2015-11-11 | 苏州昭创光电技术有限公司 | Visible light both-way communication system |
| CN105206204A (en) * | 2015-10-26 | 2015-12-30 | 桂林电子科技大学 | LED light transmission visual electronic navigation system |
| US9277401B2 (en) | 2013-01-22 | 2016-03-01 | Qualcomm Incorporated | Device utilizing an optical signal to access an access point |
| CN105790835A (en) * | 2016-04-15 | 2016-07-20 | 华中科技大学 | Data center wireless optical communication system |
| CN105898748A (en) * | 2016-05-26 | 2016-08-24 | 北京京东尚科信息技术有限公司 | Method and device for optical access network of intelligent equipment |
| CN106027147A (en) * | 2016-04-29 | 2016-10-12 | 东北电力大学 | Internet-based visible light receiving-transmitting all-in-one system |
| CN106100732A (en) * | 2016-06-04 | 2016-11-09 | 清华大学深圳研究生院 | A kind of asymmetrical network based on visible light communication transmission system and transmission method |
| CN106788746A (en) * | 2016-09-20 | 2017-05-31 | 丛聪 | A kind of wireless light communication mutually melts equipment |
| CN109450535A (en) * | 2018-11-16 | 2019-03-08 | 广东工业大学 | A kind of wireless communications method based on visible light and radio-frequency technique |
| CN112187630A (en) * | 2020-09-21 | 2021-01-05 | 西安邮电大学 | Bidirectional communication system, networking method, computer equipment and storage medium |
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| CN1893321A (en) * | 2005-07-05 | 2007-01-10 | 安华高科技杰纳勒尔Ip（新加坡）私人有限公司 | Optical communication system, lighting equipment and terminal equipment used therein |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811091B (en) * | 2012-07-06 | 2015-02-04 | 北京邮电大学 | Visible light communication-based broadband access device and method |
| CN102811091A (en) * | 2012-07-06 | 2012-12-05 | 北京邮电大学 | Visible light communication-based broadband access device and method |
| CN104737473A (en) * | 2012-10-16 | 2015-06-24 | 皇家飞利浦有限公司 | Method, light module and receiving unit for light coding |
| US9277401B2 (en) | 2013-01-22 | 2016-03-01 | Qualcomm Incorporated | Device utilizing an optical signal to access an access point |
| CN103220041A (en) * | 2013-04-22 | 2013-07-24 | 南京邮电大学 | Wireless router access system based on visible light |
| CN103595471A (en) * | 2013-12-02 | 2014-02-19 | 吴东辉 | Method, system and device of space optical communication |
| CN103618571A (en) * | 2013-12-02 | 2014-03-05 | 吴东辉 | Method and system for transmitting information through lighting sources |
| CN110474685A (en) * | 2013-12-02 | 2019-11-19 | 吴东辉 | A kind of method and system and device using lighting source transmission information |
| CN103618571B (en) * | 2013-12-02 | 2019-11-05 | 吴东辉 | A kind of method and system using lighting source transmission information |
| CN104699650A (en) * | 2015-03-18 | 2015-06-10 | 贵州遵义鑫阳电子科技有限公司 | Method of embedded system for providing IP access through USB interface |
| CN104993874A (en) * | 2015-08-10 | 2015-10-21 | 中国人民解放军信息工程大学 | Visible light communication tunnel lamp used in mine pits |
| CN105049119A (en) * | 2015-09-09 | 2015-11-11 | 苏州昭创光电技术有限公司 | Visible light both-way communication system |
| CN105206204A (en) * | 2015-10-26 | 2015-12-30 | 桂林电子科技大学 | LED light transmission visual electronic navigation system |
| CN105790835A (en) * | 2016-04-15 | 2016-07-20 | 华中科技大学 | Data center wireless optical communication system |
| CN106027147A (en) * | 2016-04-29 | 2016-10-12 | 东北电力大学 | Internet-based visible light receiving-transmitting all-in-one system |
| CN105898748A (en) * | 2016-05-26 | 2016-08-24 | 北京京东尚科信息技术有限公司 | Method and device for optical access network of intelligent equipment |
| CN106100732A (en) * | 2016-06-04 | 2016-11-09 | 清华大学深圳研究生院 | A kind of asymmetrical network based on visible light communication transmission system and transmission method |
| CN106100732B (en) * | 2016-06-04 | 2019-05-14 | 清华大学深圳研究生院 | A kind of asymmetrical network Transmission system and transmission method based on visible light communication |
| CN106788746A (en) * | 2016-09-20 | 2017-05-31 | 丛聪 | A kind of wireless light communication mutually melts equipment |
| CN109450535A (en) * | 2018-11-16 | 2019-03-08 | 广东工业大学 | A kind of wireless communications method based on visible light and radio-frequency technique |
| CN112187630A (en) * | 2020-09-21 | 2021-01-05 | 西安邮电大学 | Bidirectional communication system, networking method, computer equipment and storage medium |
| CN112187630B (en) * | 2020-09-21 | 2022-03-15 | 西安邮电大学 | Bidirectional communication system, networking method, computer equipment and storage medium |
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