CN202652224U - Communication system and portable device used for visible light communication - Google Patents
Communication system and portable device used for visible light communication Download PDFInfo
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- CN202652224U CN202652224U CN 201220334190 CN201220334190U CN202652224U CN 202652224 U CN202652224 U CN 202652224U CN 201220334190 CN201220334190 CN 201220334190 CN 201220334190 U CN201220334190 U CN 201220334190U CN 202652224 U CN202652224 U CN 202652224U
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Abstract
The utility model discloses a communication system and a portable device used for visible light communication. The communication system is used for data transmission among the portable devices. The communication system comprises at least a first portable device (1) and at least a second portable device (2), wherein the first portable device at least comprises an LED lamp (3) whose on-off state on timing sequence indicates data to be transmitted. The second portable device at least comprises an optical inductor (4) which can sense the on-off state of the LED lamp on the timing sequence, thereby receiving data indicated by the on-off state. The LED lamp can comprise a white light LED. The communication system does not need configuration of the portable device, and maximum data transmission speed can reach 1Gbits/s, therefore the communication system is advantaged by low cost and high efficiency.
Description
Technical field
The utility model belongs to the optical communication technique field, is specifically related to communication system and portable unit for visible light communication.The utility model can be applicable to the communication between the portable units such as mobile phone, palmtop PC, panel computer, notebook computer.
Background technology
White light LEDs (light-emitting diode) has the advantages such as high brightness, low-power consumption, long-life, and especially white light LEDs is the PN junction device that is made of semiconductor, so frequency response speed is high, switching speed is fast, and per second can light on and off 10
6Inferior, so can transmit binary numeral 0 and 1." High Data Rate Multiple Input Multiple Output (MIMO) Optical Wireless Communications Using White LED Lighting " (IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS of the people such as Lubin Zeng, VOL.27, NO.9, DECEMBER 2009) disclosed and used the data transmission bauds of white light LEDs to can reach 1Gbits/s.At present, white light LEDs has been applied in the portable unit on a large scale, mobile phone for example, and digital camera etc., it can be used as the illuminating lamp etc. of light compensating lamp, photoflash lamp or the portable unit of camera.
Optical inductor is a kind of photo-detector, also is a kind of semiconductor device, and switching speed is fast.Portable units such as smart mobile phone, panel computer, notebook computer also all uses optical inductor on a large scale at present, thereby so that its operating state is controlled in its variation that can discover ambient light, for example, smart mobile phone can be controlled the brightness of screen display accordingly.
At present, the short haul connection pattern that portable unit uses has Wifi, bluetooth and near-field communication etc., its all need to be in portable unit chip corresponding to additional configuration.And these several communication modes all belong to radio frequency communication, and the electromagnetic radiation of its generation is unfavorable to health.
Summary of the invention
The technical problem that (one) will solve
Technical problem to be solved in the utility model provides a kind of visible light communication system and method that is applied to portable unit, needs extra chips cost and the larger problem of electromagnetic radiation when the short haul connection to overcome existing portable unit.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model proposes a kind of visible light communication system, be used for the transfer of data between the portable unit, this system comprises at least one first portable unit and at least one second portable unit, wherein said the first portable unit comprises a LED lamp at least, the data that the light on and off state representation of this LED lamp on sequential will transmit; Described the second portable unit comprises an optical inductor at least, and this optical inductor can be responded to the light on and off state of described LED lamp on sequential, thereby receives the data of this light on and off state representation.
According to a kind of embodiment of the present utility model, described the first portable unit also comprises first central processing unit, and it is used for the data that will send are encoded, and controls the light on and off state of described LED lamp on sequential according to coded data.
According to a kind of embodiment of the present utility model, described the first portable unit also comprises a LED drive unit, it is connected between described LED lamp and described the first central processing unit, be used for receiving the coded data that described the first central processing unit transmits, and this coded data is converted to the LED control signal of the control light on and off state of LED lamp on sequential, and control the light on and off state of described LED lamp on sequential by this LED control signal.
According to a kind of embodiment of the present utility model, described the second portable unit also comprises second central processing unit, it is used for the startup of control optical inductor and closes, and be used for decoding data to the described light on and off state representation that receives, thereby obtain the data that transmit from described the first portable unit.
According to a kind of embodiment of the present utility model, described the second portable unit is at least two, and these at least two second portable units are used for receiving simultaneously the data that described the first portable unit transmits.
According to a kind of embodiment of the present utility model, described LED lamp is made of white light LEDs.
The present invention also proposes a kind of portable unit for visible light communication, and it is used for carrying out transfer of data with another portable unit at least, and comprises at least a LED lamp, the data that the light on and off state representation of this LED lamp on sequential will transmit.
According to a kind of embodiment of the present utility model, portable unit also comprises first central processing unit, and it is used for the data that will send are encoded, and controls the light on and off state of described LED lamp on sequential according to coded data.
According to a kind of embodiment of the present utility model, portable unit also comprises a LED drive unit, it is connected between described LED lamp and described the first central processing unit, be used for receiving the coded data that described the first central processing unit transmits, and this coded data is converted to the LED control signal of the control light on and off state of LED lamp on sequential, and control the light on and off state of described LED lamp on sequential by this LED control signal.
The present invention also proposes the another kind of portable unit that is used for visible light communication, it is used for carrying out transfer of data with another portable unit at least, and comprise at least an optical inductor, this optical inductor can be responded to the light on and off state of LED lamp on sequential of another portable unit, thereby receives the data of this light on and off state representation.
According to a kind of embodiment of the present utility model, portable unit also comprises second central processing unit (6), it is used for the startup of control optical inductor and closes, and be used for decoding data to the described light on and off state representation that receives, thereby obtain the data that transmit from described the first portable unit.
(3) beneficial effect
The utility model need not increase the configuration of portable unit with the visible light communication light source of white light LEDs as portable unit, and its data transmission bauds can reach 1Gbits/s, therefore has the low and high advantage of efficient of cost.
In addition, the visible light communication that the utility model adopts has without radio-frequency radiation, good confidentiality, is not subjected to the plurality of advantages such as electromagnetic interference, and future is probably integrated with lighting technology and power circuit, has broad application prospects.
Description of drawings
Fig. 1 is the configuration diagram of an embodiment of the visible light communication system for portable unit of the present utility model;
Fig. 2 is internal module schematic diagram embodiment illustrated in fig. 1;
Fig. 3 has shown that smart mobile phone of the second embodiment of the visible light communication system for portable unit of the present utility model carries out the schematic diagram of visible light communication to other two smart mobile phones.
Embodiment
LED lamp and optical inductor that the utility model has utilized existing portable unit to dispose are to realize the visible light communication between the portable unit.For example for mobile phone, utilize LED lamp and the optical inductor of existing mobile phone common configuration, the utility model can be realized the wireless transmission of data between mobile phone and share.
According to a kind of execution mode of the present utility model, portable unit is smart mobile phone, and it comprises LED lamp and optical inductor, also comprises the central processing unit of control LED lamp and optical inductor.In this embodiment, the LED lamp of one of them smart mobile phone is as the signal transmitting terminal, and the optical inductor of another smart mobile phone is as signal receiving end.But, the utility model is not limited to be applied to smart mobile phone, any have LED lamp or an optical inductor, and the mancarried device with the central processing unit that can control LED lamp or optical inductor all can be used the utility model, for example PDA, panel computer, notebook computer, mobile sound, video player, digital camera etc.
According to a kind of execution mode of the present utility model, described LED lamp is that white light LEDs consists of.White light LEDs has high brightness, low-power consumption, long-life, frequency response speed advantages of higher.Certainly, the utility model also can adopt other LED lamp, as long as LED lamp and optical inductor cooperatively interact, can realize visible light communication of the present utility model.
In addition, the utility model also is not limited only to two communications between the portable unit.Because the diversity of visible light, the light that the LED lamp of a portable unit sends can be received by the optical inductor of a plurality of other portable units simultaneously, can realize thus the visible light communication between a plurality of portable units.And, the utility model also is not limited to the communication between the congener mancarried device, as long as two mancarried devices have respectively the LED lamp and the optical inductor that cooperatively interact and just can realize visible light communication of the present utility model, for example utilize notebook computer be used for realize optical communication between the LED lamp that throws light on and the mobile phone.
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
Fig. 1 is the configuration diagram of an embodiment of the visible light communication system for portable unit of the present utility model, and Fig. 2 is its internal module schematic diagram.As depicted in figs. 1 and 2, in this embodiment, portable unit is embodied as smart mobile phone, and in this system, comprises at least two smart mobile phones, i.e. the first smart mobile phone 1 and the second smart mobile phone 2.Wherein the first smart mobile phone 1 comprises a LED lamp 3 and first central processing unit 5 at least, the first central processing unit 5 is used for the data that will send are encoded, and control the light on and off state of described LED lamp 3 on sequential according to coded data, realize thus the transmission of data; The second smart mobile phone 2 comprises an optical inductor 4 and second central processing unit 6 at least, optical inductor 4 can the induction LED lamp the light on and off state, and the second central processing unit 6 is used for the startup of control optical inductor 4 and cuts out, and be used for decoding data to the described light on and off state representation that receives, thereby obtain the data that transmit from described the first smart mobile phone 1.
In this embodiment, the first smart mobile phone 1 also comprises a LED drive unit 7, it is connected between described LED lamp 3 and the first central processing unit 5, be used for receiving the coded data that the first central processing unit 5 transmits, coded data is converted to the LED control signal of the light on and off state of control LED lamp on sequential, and passes through the light on and off state of this control signal control LED lamp 3 on sequential.When the second smart mobile phone 2 when the first smart mobile phone, and when optical inductor 4 residing positions are positioned at the visible light that the LED lamp 3 that can receive the first smart mobile phone 1 sends, this optical inductor 4 is converted to digital signal with the light on and off state of visible light on sequential that receives and sends it to the second central processing unit of the second smart mobile phone 2, the second central processing unit 6 is decoded received digital signal, thereby obtains the information content that sends from the first smart mobile phone 1.
The agreement that the time receiving follows appointment is being transmitted in system of the present utility model to visible light information.Described agreement is to define visible light information in the control in when transmission and coding, decoding standard.Thus, when the first smart mobile phone 1 transmitted by a kind of host-host protocol, the second smart mobile phone 2 only had by identical host-host protocol and could the visible light information of its transmission effectively be received.
According to the utility model, the method that is used for the control information transmission realizes that by the mode of software software can be kept in the memory device of smart mobile phone, perhaps in the external memory device; And the information that transmits and receive also can be kept in the memory device of smart mobile phone or in the external connection of storage card.In this embodiment, be used for the memory device (not shown) that the control information software that transmits and the information that will transmit all are kept at the first smart mobile phone 1.The first central processing unit is realized control to the LED lamp by calling this software and the information that will transmit, thereby reaches the purpose of transmission information.Equally, also be kept at the memory device of the second smart mobile phone 2 in the second smart mobile phone 2 for the method that receives the information of transmitting and the information that receives.
When using system of the present utility model, the user opens the application software of the first smart mobile phone 1, by the file datas such as multimedia that this software selection need to send, then selects to confirm transmission.The first central processing unit 5 just converts the data of this document to corresponding binary bit stream in the predictive encoding mode, then sends to LED drive unit 7.LED drive unit 7 sends control signal to LED lamp 3 according to bit stream, LED lamp 3 is lighted and is extinguished (representing respectively binary numeral 1 and 0), to send optical information to the optical inductor 4 of the second smart mobile phone 2 in the sighting distance.Optical inductor 4 is converted into digital signal with the light signal that receives and sends to the second central processing unit 6.The second central processing unit 6 in the predetermined decoding mode with the data of this digital signal decoding as the file that sent.When the user opens application software and selects to confirm to receive in the second smart mobile phone, the first smart mobile phone 1 and the visible light Wireless Data Transmission of the second smart mobile phone 2 in sighting distance have just been finished.
According to the utility model, because the diversity of visible light utilizes same principle, a portable unit can be finished transfer of data with a plurality of smart mobile phones simultaneously.Fig. 3 has shown among the second embodiment of the present utility model that a smart mobile phone carries out the schematic diagram of visible light communication to other two smart mobile phones.In this second embodiment, system of the present utility model also comprises the 3rd smart mobile phone 2 ', and it has and the identical configuration of the second smart mobile phone.Thus, when the first smart mobile phone 1 transmission information, the second smart mobile phone 2 and the 3rd smart mobile phone 2 ' of sighting distance that is positioned at the LED lamp 3 of the first smart mobile phone 1 can receive the information of transmitting simultaneously.Certainly, the utility model is not limited to this, and according to identical principle, the utility model can realize that a smart mobile phone carries out transmission of visible light between any a plurality of smart mobile phones, as long as these smart mobile phones are positioned within the sighting distance of LED lamp.
More than described and utilized visible light between a plurality of portable units, to carry out structure and the method for the system of communication, control method when transmitting for visible light information of the present utility model and coding and decoding method, can adopt in the prior art ripe control method and coding, decoding technique, also can carry out on the basis of existing technology proper transformation, this all is to realize easily to those skilled in the art, does not therefore repeat them here.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. a visible light communication system is used for the transfer of data between the portable unit, it is characterized in that this system comprises at least one first portable unit (1) and at least one the second portable unit (2), wherein
Described the first portable unit comprises a LED lamp (3) at least, the data that the light on and off state representation of this LED lamp on sequential will transmit;
Described the second portable unit comprises an optical inductor (4) at least, and this optical inductor can be responded to the light on and off state of described LED lamp on sequential, thereby receives the data of this light on and off state representation.
2. visible light communication system as claimed in claim 1, it is characterized in that, described the first portable unit comprises that also one is used for the data that will send are encoded and controlled first central processing unit (5) of the light on and off state of described LED lamp on sequential according to coded data, and it is connected with LED lamp (3).
3. visible light communication system as claimed in claim 2, it is characterized in that, described the first portable unit comprises that also is used for receiving the coded data that described the first central processing unit transmits, and this coded data is converted to the LED control signal of the control light on and off state of LED lamp on sequential, and control the LED drive unit (7) of the light on and off state of described LED lamp on sequential by this LED control signal, it is connected between described LED lamp and described the first central processing unit.
4. visible light communication system as claimed in claim 1, it is characterized in that, described the second portable unit comprises that also one is used for controlling the startup of optical inductor and closing, and be used for decoding data to the described light on and off state representation that receives, thereby obtain from second central processing unit (6) of the data of described the first portable unit transmission, it is connected with optical inductor (4).
5. such as each described visible light communication system among the claim 1-4, it is characterized in that described LED lamp is made of white light LEDs.
6. portable unit that is used for visible light communication, it is used for carrying out transfer of data with another portable unit at least, it is characterized in that: comprise at least a LED lamp (3), the data that the light on and off state representation of this LED lamp on sequential will transmit.
7. the portable unit for visible light communication as claimed in claim 6, it is characterized in that, comprise that also one is used for the data that will send are encoded, and control first central processing unit (5) of the light on and off state of described LED lamp on sequential according to coded data, it is connected in LED lamp (3).
8. the portable unit for visible light communication as claimed in claim 7, it is characterized in that, comprise that also is used for receiving the coded data that described the first central processing unit transmits, and this coded data is converted to the LED control signal of the control light on and off state of LED lamp on sequential, and control the LED drive unit (7) of the light on and off state of described LED lamp on sequential by this LED control signal, it is connected between described LED lamp and described the first central processing unit.
9. portable unit that is used for visible light communication, it is used for carrying out transfer of data with another portable unit at least, it is characterized in that, at least comprise an optical inductor (4), this optical inductor can be responded to the light on and off state of LED lamp on sequential of another portable unit, thereby receives the data of this light on and off state representation.
10. the portable unit of visible light communication as claimed in claim 9, it is characterized in that, comprise that also one is used for controlling the startup of optical inductor and closing, and be used for decoding data to the described light on and off state representation that receives, thereby obtain from second central processing unit (6) of the data of described the first portable unit transmission, it is connected in optical inductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334190 CN202652224U (en) | 2012-07-10 | 2012-07-10 | Communication system and portable device used for visible light communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334190 CN202652224U (en) | 2012-07-10 | 2012-07-10 | Communication system and portable device used for visible light communication |
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| CN202652224U true CN202652224U (en) | 2013-01-02 |
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| CN 201220334190 Expired - Lifetime CN202652224U (en) | 2012-07-10 | 2012-07-10 | Communication system and portable device used for visible light communication |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070628A1 (en) * | 2013-11-18 | 2015-05-21 | 中兴通讯股份有限公司 | Information sending/receiving method and device for terminal, and terminal |
| CN104869252A (en) * | 2015-05-19 | 2015-08-26 | 广州大学 | Superspeed data transmission mobile terminal based on LiFi |
| CN105761592A (en) * | 2016-04-15 | 2016-07-13 | 中国科学院上海技术物理研究所 | Visible light communication demonstration teaching aid |
| CN105897968A (en) * | 2016-05-31 | 2016-08-24 | 京东方科技集团股份有限公司 | Mobile terminal |
| CN107425912A (en) * | 2017-07-28 | 2017-12-01 | 上海与德科技有限公司 | A kind of data transfer transmission method and mobile terminal |
| CN107579775A (en) * | 2017-08-24 | 2018-01-12 | 上海与德科技有限公司 | A kind of data transmission method, device, mobile terminal and storage medium |
| CN110234149A (en) * | 2019-06-14 | 2019-09-13 | 深圳志合天成科技有限公司 | A kind of smart machine optical encoding matches network method |
-
2012
- 2012-07-10 CN CN 201220334190 patent/CN202652224U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015070628A1 (en) * | 2013-11-18 | 2015-05-21 | 中兴通讯股份有限公司 | Information sending/receiving method and device for terminal, and terminal |
| CN104660331A (en) * | 2013-11-18 | 2015-05-27 | 中兴通讯股份有限公司 | Information sending, receiving method and device of terminal, and the terminal |
| CN104869252A (en) * | 2015-05-19 | 2015-08-26 | 广州大学 | Superspeed data transmission mobile terminal based on LiFi |
| CN105761592A (en) * | 2016-04-15 | 2016-07-13 | 中国科学院上海技术物理研究所 | Visible light communication demonstration teaching aid |
| CN105897968A (en) * | 2016-05-31 | 2016-08-24 | 京东方科技集团股份有限公司 | Mobile terminal |
| CN107425912A (en) * | 2017-07-28 | 2017-12-01 | 上海与德科技有限公司 | A kind of data transfer transmission method and mobile terminal |
| CN107579775A (en) * | 2017-08-24 | 2018-01-12 | 上海与德科技有限公司 | A kind of data transmission method, device, mobile terminal and storage medium |
| CN110234149A (en) * | 2019-06-14 | 2019-09-13 | 深圳志合天成科技有限公司 | A kind of smart machine optical encoding matches network method |
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Granted publication date: 20130102 |