CN104485995A - Light fidelity access device - Google Patents
Light fidelity access device Download PDFInfo
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- CN104485995A CN104485995A CN201410777941.6A CN201410777941A CN104485995A CN 104485995 A CN104485995 A CN 104485995A CN 201410777941 A CN201410777941 A CN 201410777941A CN 104485995 A CN104485995 A CN 104485995A
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Abstract
The invention belongs to the technical field of wireless communication, and discloses a LiFi (Light Fidelity) access device, which comprises a USB (Universal Serial Bus) port, a signal conversion module, a signal output module and a signal receiving module. The LiFi access device is plugged into a device with a USB interface, the signal receiving module converts a received external light signal into corresponding USB data through the signal conversion module, and transmits the USB data to a terminal by virtue of a transmission function of the USB port and the USB interface. Similarly, data from the terminal is transmitted to the signal conversion module by virtue of the transmission function of the USB port and the USB interface, and is converted into a signal readable for a power control module through the signal conversion module to control a direct current light source to be turned on and turned off to form LiFi signal output for data exchange with peripheral LiFi equipment through a LiFi protocol. Therefore, the LiFi access device is portable, a computer terminal can access LiFi network at any time, and the application range of a LiFi technology is effectively widened.
Description
Technical field
The invention belongs to wireless communication technology field, be specifically related to a kind of wireless access device based on visible ray.
Background technology
LiFi (Light Fidelity), full name is visible ray radio communication, also known as light Fidelity technology, is a kind of technology of the optical transport data utilizing light source to send.The development of LiFi technology facilitates the convenience of exchanges data, particularly transmitted in both directions can add the advantage of LiFi technology application without the need to netting twine simultaneously, impel it to advance, but, LiFi technology itself also has its limitation, if such as source light is stopped, network signal will be cut off, and greatly limit the application of LiFi technology.
Summary of the invention
For this reason, to be solved by this invention is the narrow problem of existing LiFi technology range of application, provides a kind of Portable visible light wireless access device, effectively extends LiFi technology range of application.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of visible ray wireless access device of the present invention, comprises
USB port, for carrying out transfer of data according to usb protocol;
Signal receiving module, for receiving the light signal that non-described visible ray wireless access device sends;
Signal output module, exports for light signal;
Signal conversion module, it is electrically connected described optical signal receiving module, signal output module and USB port respectively, described signal conversion unit and USB port carry out transfer of data, the light signal that signal receiving module receives is changed, and the signal obtained after described signal conversion module process is exported.
Described light signal is LiFi signal.
Described signal output module comprises energy supply control module and DC light source, and described energy supply control module is used for according to DC light source described in the signal controlling obtained after described signal conversion module process, realizes the control of DC light source.
Preferably, described DC light source is organic electroluminescence device.
Preferably, described DC light source is LED device.
Preferably, described signal conversion module also comprises sequential control circuit.
Preferably, described sequential control circuit provides the square-wave signal that more than 10 tunnels can adjust separately.
Preferably, described USB port carries out transfer of data according to USB3.0 agreement.
Technique scheme of the present invention has the following advantages compared to existing technology:
Visible ray wireless access device of the present invention comprises USB port, signal conversion module, signal output module and signal receiving module; The outside LiFi signal received is converted to corresponding usb data by signal conversion module by signal receiving module, conducts to terminal by the transmitting effect of USB port.
Equally, the data carrying out self terminal conduct to signal conversion module by the transmitting effect of USB port, and be converted to the readable signal of energy supply control module by signal conversion module, control DC light source, export to form LiFi signal, carry out exchanges data by the LiFi equipment of LiFi agreement and periphery.This realizes portableization with regard to making the wireless access device based on visible ray, makes computer terminal can access network at any time, effectively extends LiFi technology range of application.
Meanwhile, described signal conversion module also comprises sequential control circuit, and this just makes visible ray wireless access device of the present invention can use as light source, of many uses.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Signal transmissions schematic diagram when Fig. 1 is the work of visible ray wireless access device described in the embodiment of the present invention;
In figure, Reference numeral is expressed as: 1-computer, 11-USB interface, 2-visible ray wireless access device, 21-USB port, 22-signal conversion module, 221-sequential control circuit, 23-DC light source, 24-energy supply control module, 25-signal receiving module.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiments of the present invention are described in further detail.
The present invention can implement in many different forms, and should not be understood to be limited to embodiment set forth herein.On the contrary, provide these embodiments, make the disclosure to be thorough and complete, and design of the present invention fully will be conveyed to those skilled in the art, the present invention will only be limited by claim.In the accompanying drawings, for clarity, the size in layer and region and relative size can be exaggerated; It should be noted that, described " LiFi signal " should be interpreted as: the data-signal meeting LiFi agreement.
Embodiment
The present embodiment provides a kind of visible ray wireless access device 2, as shown in Figure 1, comprises USB port 21, signal conversion module 22, signal output module, signal receiving module 25.
Described USB port 21 is for being connected with the device of USB interface; The light signal that described signal receiving module 25 sends for receiving non-described visible ray wireless access device; Conversion between the light signal that described signal conversion module 22 receives for described signal receiving module 25 and the usb signal that described USB port 21 receives; Described signal output module comprises energy supply control module 24 and DC light source 23, and wherein, described energy supply control module 24, for according to DC light source 23 described in the signal controlling by obtaining after described signal conversion module 22 process, realizes the control of DC light source 23.
In the present embodiment, described light signal is LiFi signal, and described signal receiving module 25 is LiFi signal receiving module.
As shown in Figure 1, described visible ray wireless access device 2 is inserted on the device with USB interface, such as there is the computer 1 of usb 11, the outside LiFi signal received is converted to corresponding usb data by described signal conversion module 22 by described signal receiving module 25, conducts to described computer 1 by the transmitting effect of described USB port 21 and described usb 11.
Equally, described signal conversion module 22 is conducted to by the transmitting effect of described usb 11 and described USB port 21 from the data in described computer 1, and be converted to the readable signal of described energy supply control module 24 by described signal conversion module 22, control the switch of described DC light source 23, export to form the corresponding data signal meeting LiFi agreement, carry out exchanges data by the LiFi equipment of LiFi agreement and periphery.This realizes portableization with regard to making the wireless access device based on visible ray, makes computer terminal can access network at any time, effectively extends LiFi technology range of application.
Because in prior art, the maximum current that can provide of USB3.0 interface is 1A, the amount of power supply of described USB interface can be ensured to greatest extent; In order to ensure the luminescence of described DC light source 23, ensure LiFi signal output quality, the present embodiment USB port preferably has the equipment of USB3.0.Simultaneously, USB3.0 is except comprising the 6 groups of signals (TX+, TX-, RX+, RX-, POWER, GND) of itself, also comprise 4 groups of signals (TX, RX, POWER, GND) of USB2.0, theoretical bandwidth can reach 5G, far above the more USB interface of substandard and the bandwidth of rs 232 serial interface signal, the requirement of transferring large number of data can be met.But the invention is not restricted to higher or lower standard usb interface, all can realize object of the present invention, belong to protection scope of the present invention.
Because in prior art, the electricity that can provide of USB3.0 interface is lower, the lower organic electroluminescence device of the preferred power consumption of the present embodiment is as DC light source 23.In the production process of organic electroluminescence display panel, there will be part can light but the panel of Presentation Function cannot be realized due to various defect, the serious wasting of resources will be caused if discarded by this part panel.In the present embodiment, because described signal conversion module 22 also comprises sequential control circuit 221, the square-wave signal that described sequential control circuit 221 can provide more than 10 tunnels to adjust separately, this just makes above-mentioned can to light but the panel that cannot realize Presentation Function due to various defect can be used as described DC light source 23 at this, thus make originally discarded panel obtain rational and efficient use, the creation of value.
As convertible embodiment of the present invention, described DC light source 23 can also be light-emitting diode (LED) device, all can realize object of the present invention, belong to protection scope of the present invention.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among protection scope of the present invention.
Claims (8)
1. a visible ray wireless access device, is characterized in that, comprises
USB port, for carrying out transfer of data according to usb protocol;
Signal receiving module, for receiving the light signal that non-described visible ray wireless access device sends;
Signal output module, exports for light signal;
Signal conversion module, be electrically connected described optical signal receiving module, signal output module and USB port respectively, described signal conversion unit and USB port carry out transfer of data, the light signal that signal receiving module receives is changed, and the Signal transmissions obtained after described signal conversion module process is exported to signal output module.
2. visible ray wireless access device according to claim 1, is characterized in that, described light signal is LiFi signal.
3. visible ray wireless access device according to claim 2, it is characterized in that, described signal output module comprises energy supply control module and DC light source, described energy supply control module is used for according to DC light source described in the signal controlling obtained after described signal conversion module process, realizes the control of DC light source.
4. visible ray wireless access device according to claim 3, is characterized in that, described DC light source is organic electroluminescence device.
5. visible ray wireless access device according to claim 3, is characterized in that, described DC light source is LED device.
6. the visible ray wireless access device according to any one of claim 1-5, is characterized in that, described signal conversion module also comprises sequential control circuit.
7. visible ray wireless access device according to claim 6, is characterized in that, the square-wave signal that described sequential control circuit provides more than 10 tunnels to adjust separately.
8. the visible ray wireless access device according to claim 1-5 or 7 any one, is characterized in that, described USB port carries out transfer of data according to USB3.0 agreement.
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| CN201410777941.6A CN104485995A (en) | 2014-12-15 | 2014-12-15 | Light fidelity access device |
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| CN201410777941.6A CN104485995A (en) | 2014-12-15 | 2014-12-15 | Light fidelity access device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105406916A (en) * | 2015-12-31 | 2016-03-16 | 中广核工程有限公司 | Communication terminal, visible light communication user external connection device and communication method thereof |
| CN107066207A (en) * | 2017-04-14 | 2017-08-18 | 济南浪潮高新科技投资发展有限公司 | A kind of data access method and device based on Lifi |
| CN113381813A (en) * | 2020-03-10 | 2021-09-10 | 神讯电脑(昆山)有限公司 | Visible light connector communication interface, expansion base and electronic device |
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