CN112910552A - LiFi communication device and electronic equipment - Google Patents

LiFi communication device and electronic equipment Download PDF

Info

Publication number
CN112910552A
CN112910552A CN201911223265.7A CN201911223265A CN112910552A CN 112910552 A CN112910552 A CN 112910552A CN 201911223265 A CN201911223265 A CN 201911223265A CN 112910552 A CN112910552 A CN 112910552A
Authority
CN
China
Prior art keywords
lifi
frequency
signal
sending
communication
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.)
Granted
Application number
CN201911223265.7A
Other languages
Chinese (zh)
Other versions
CN112910552B (en
Inventor
赵旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN201911223265.7A priority Critical patent/CN112910552B/en
Publication of CN112910552A publication Critical patent/CN112910552A/en
Application granted granted Critical
Publication of CN112910552B publication Critical patent/CN112910552B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H04B10/116—Visible light communication
    • 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
    • H04B10/40—Transceivers
    • 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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/502—LED transmitters
    • 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
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/67—Optical arrangements in the receiver
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

The application provides a LiFi communication device and electronic equipment, LiFi communication device includes two light fidelity LiFi optical module that are used for carrying out the LiFi communication, the communication chip, the conversion module can be the LiFi signal transmission of two way second frequencies with the signal transmission conversion of the first frequency that the communication chip sent, and send through two light fidelity LiFi optical module respectively, and convert the LiFi received signal of the second frequency that two light fidelity LiFi optical module received respectively into the wiFi received signal of first frequency and send to the communication chip and handle. Because the signal transmission with the same frequency is realized by utilizing the two transmission paths, the transmission rate of the LiFi communication is improved, the LiFi communication of the electronic equipment can be realized without utilizing a USB interface of the electronic equipment to externally connect a LiFi module, the convenience of the electronic equipment is improved, the internal space of the electronic equipment is saved, and the integrity and the attractiveness of the electronic equipment are ensured.

Description

LiFi communication device and electronic equipment
Technical Field
The present application relates to the field of communications technologies, and in particular, to a LiFi communication device and an electronic apparatus.
Background
The Light Fidelity (LiFi) technology is a Light internet access technology, and Light emitted by an LED lighting lamp is used as a transmission tool for network signals to transmit data, so as to realize illumination internet access. LiFi has the characteristics of low radiation, low energy consumption, low carbon and environmental protection, and gradually becomes a research hotspot in the field of communication.
In the correlation technique, when using the liFi technique in electronic equipment such as cell-phone, be used for carrying out the liFi communication through the external liFi module of USB interface at electronic equipment specially usually, if utilize the external LiFi module of the original USB interface of electronic equipment, can make when carrying out the LiFi communication, other functions of this interface of unable normal use, for example, utilize this interface to charge, and if it is used for external LiFi module to increase the USB interface in electronic equipment, not only occupy electronic equipment's inner space, and influence electronic equipment's aesthetic property, therefore, this kind of mode that carries out the LiFi communication at the external LiFi module of USB interface of electronic equipment, there is certain drawback.
Disclosure of Invention
The embodiment of the application provides a LiFi communication device and electronic equipment, a be used for solving the correlation technique, the external LiFi module of USB kneck at electronic equipment carries out the mode of LiFi communication, if utilize the external LiFi module of the original USB interface of electronic equipment, can make when carrying out the LiFi communication, other functions of this interface of unable normal use, and if increase the USB interface in electronic equipment and be used for external LiFi module, not only occupy electronic equipment's inner space, and influence electronic equipment's aesthetic property, therefore, there is the technical problem of drawback in the mode that the external LiFi module of USB kneck of electronic equipment carries out LiFi communication.
To this end, an embodiment of an aspect of the present application provides a LiFi communication apparatus, including: the first light fidelity LiFi optical module and the second light fidelity LiFi optical module are respectively used for LiFi communication; a communication chip; and the conversion module is respectively connected with the communication chip, the first light fidelity LiFi optical module and the second light fidelity LiFi optical module and is used for receiving a first frequency sending signal sent by the communication chip, converting the first frequency sending signal into two paths of LiFi sending signals with second frequencies, respectively sending the first light fidelity LiFi optical module and the second light fidelity LiFi optical module, respectively converting one path of LiFi receiving signal with the second frequency received by the first light fidelity LiFi optical module into a first frequency receiving signal, and sending the first frequency receiving signal to the communication chip for processing.
An embodiment of another aspect of the present application provides an electronic device, including the LiFi communication apparatus described in the embodiment of the first aspect.
The technical scheme disclosed in the application has the following beneficial effects:
the first optical fidelity LiFi optical module, the second optical fidelity LiFi optical module, the communication chip and the conversion module connected with the communication chip are arranged in the LiFi communication device, the conversion module is used for converting LiFi receiving signals of second frequency respectively received by the two LiFi optical modules into receiving signals of first frequency and sending the receiving signals to the communication chip for processing, receiving sending signals of first frequency sent by the communication chip, converting the sending signals of first frequency into two LiFi sending signals of second frequency and sending the two LiFi sending signals through the two optical fidelity LiFi optical modules respectively, so that LiFi communication of electronic equipment can be realized without using a LiFi module externally connected with a USB interface of the electronic equipment, the transmission speed of LiFi communication is improved because the transmission of the same frequency is realized by using a transmission passage, and the original interface of the electronic equipment is not occupied or the USB interface is additionally arranged in the electronic equipment, therefore, when LiFi communication is carried out, other functions of occupied interfaces cannot be normally used, convenience of the electronic equipment is improved, the fact that the USB interface is additionally arranged in the electronic equipment is avoided, the internal space of the electronic equipment is saved, integrity and attractiveness of the electronic equipment are guaranteed, and user experience is improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a LiFi communication device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a LiFi communication device according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of a LiFi communication device according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a LiFi communication device according to another embodiment of the present application;
FIG. 5 is a schematic structural diagram of a first converting sub-module according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a first converting sub-module according to another embodiment of the present application;
FIG. 7 is a schematic structural diagram of a first converting sub-module according to another embodiment of the present application;
FIG. 8 is a schematic structural diagram of a first converting sub-module according to another embodiment of the present application;
fig. 9 is a schematic circuit diagram of a first matching network unit according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a LiFi communication device according to another embodiment of the present application;
description of reference numerals:
a first optical fidelity LiFi optical module-1; a second LIFi optical module-2;
a first converting sub-module-41; a second conversion sub-module-42;
a first signal transceiving unit-412; a first frequency conversion unit-411;
a second signal transceiving unit-422; second frequency conversion Unit-421
A communication chip-3; a conversion module-4; a first optical transmitter-11;
a first optical receiver-22; a second optical transmitter-21; a second optical receiver-22;
a first switch-4121; a first oscillator-4111; a first mixer-4112;
a second switch-4221; a second oscillator-4211; a second mixer-4212;
a first amplifier-4122; a second amplifier-4123; a third amplifier-4222;
a first matching network element-413; a fourth amplifier-4223; a second matching network unit-423.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
Each embodiment of this application is directed against among the correlation technique, the mode that carries out the LiFi communication at the external LiFi module of USB kneck of electronic equipment, if utilize the external LiFi module of the original USB interface of electronic equipment, when can making carry out the LiFi communication, other functions of this interface of unable normal use, and if increase the USB interface and be used for external LiFi module in electronic equipment, not only occupy electronic equipment's inner space, and influence electronic equipment's aesthetic property, therefore, there is the technical problem of drawback in the mode that the external LiFi module of USB kneck of electronic equipment carries out the LiFi communication, a LiFi communication device is proposed.
The LiFi communication device provided by the embodiment of the application is provided with two optical fidelity LiFi optical modules, a communication chip and conversion modules respectively connected with the communication chip and the two optical fidelity LiFi optical modules, wherein the conversion modules are used for converting LiFi receiving signals of second frequency respectively received by the two LiFi optical modules into receiving signals of first frequency and sending the receiving signals to the communication chip for processing, receiving sending signals of first frequency sent by the communication chip, converting the sending signals of first frequency into two LiFi sending signals of second frequency, and respectively sending the LiFi sending signals through the two optical fidelity LiFi optical modules, so that the LiFi communication of electronic equipment can be realized without utilizing a USB interface of the electronic equipment to externally connect with the LiFi module, and because the signal transmission of the same frequency is realized by utilizing two transmission passages, the transmission rate of the LiFi communication is improved, and because the original interface of the electronic equipment does not need to be occupied or a USB interface is additionally arranged in the electronic equipment, therefore, when LiFi communication is carried out, other functions of occupied interfaces cannot be normally used, convenience of the electronic equipment is improved, the fact that the USB interface is additionally arranged in the electronic equipment is avoided, the internal space of the electronic equipment is saved, integrity and attractiveness of the electronic equipment are guaranteed, and user experience is improved.
The LiFi communication device and the electronic apparatus according to the embodiments of the present application are described below with reference to the drawings.
First, a LiFi communication device provided in an embodiment of the present application will be specifically described with reference to fig. 1.
Fig. 1 is a schematic structural diagram of a LiFi communication device according to an embodiment of the present application.
As shown in fig. 1, the LiFi communication device of the present application may include: first light fidelity LiFi optical module 1, second light fidelity LiFi optical module 2, communication chip 3, conversion module 4.
The first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 are respectively used for LiFi communication;
conversion module 4 and communication chip 3, first light fidelity LiFi optical module 1, second light fidelity LiFi optical module 2 links to each other respectively, a send signal for receiving the first frequency that communication chip 3 sent, and convert the LiFi send signal into two way second frequencies, and send through first light fidelity LiFi optical module 1 and second light fidelity LiFi optical module 2 respectively, and convert the received signal of one way second frequency's of LiFi received signal and the received signal of one way second frequency's of second light fidelity LiFi optical module that first light fidelity LiFi optical module 1 received into the received signal of first frequency respectively, and send to communication chip 3 and handle.
Specifically, the LiFi communication apparatus provided in the embodiment of the present application can be applied to electronic devices, such as smart phones, tablet computers, personal digital assistants, and the like, to implement LiFi communication of the electronic devices.
It can be understood that the LIFI optical module can include an optical receiver and an optical transmitter, optical signals received by the optical receiver can be converted into electrical signals after being processed by chips, circuits and the like in the LIFI optical module, and the electrical signals can be transmitted out through the optical transmitter after being processed by chips, circuits and the like in the LIFI optical module, so that LIFI communication is realized.
In the embodiment of the present application, the first optical fidelity LiFi optical module 1 includes the first optical transmitter 11 and the first optical receiver 12, the first optical transmitter 11 and the first optical receiver 12 are respectively connected with the conversion module 4, the second optical fidelity LiFi optical module 2 includes the second optical transmitter 21 and the second optical receiver 22, the second optical transmitter 21 and the second optical receiver 22 are respectively connected with the conversion module 4, the first optical transmitter 11 and the second optical transmitter 21 are used for transmitting the LiFi transmission signal of the second frequency, and the first optical receiver 12 and the second optical receiver 22 are used for receiving the LiFi reception signal of the second frequency.
The communication chip 3 may be any chip capable of performing signal processing in an electronic device, which is not limited in this application.
It can be understood that present electronic equipment includes wiFi communication chip usually, in order to realize wiFi communication function, wiFi communication chip can treat the baseband signal of treating transmission for the wiFi radio frequency signal that is fit for carrying out the wiFi communication, therefore, this application need carry out the external LiFi communication module of USB interface at electronic equipment in order to avoid realizing the LiFi communication, realize directly utilizing electronic equipment to carry out the LiFi communication, can handle baseband signal with existing wiFi communication chip among the multiplexing electronic equipment, convert the radio frequency signal after the wiFi communication chip is handled into the intermediate frequency signal that is fit for carrying out the LiFi communication again, thereby need not to be used for carrying out the LiFi communication at the external LiFi communication module of USB interface of electronic equipment.
That is, in this embodiment of the application, the communication chip 3 may be a WiFi communication chip, and correspondingly, the first frequency is in an operating frequency band of WiFi communication. For example, the first frequency may be any frequency in the 2.4GHz band or the 5GHz band. Wherein, the 2.4GHz frequency band and the 5GHz frequency band are WiFi public frequency bands.
The second frequency is any frequency in the working frequency band of the LiFi communication. For example, the second frequency may be 80MHz or 160MHz, 280MHz, 360MHz, etc.
It can be understood that, in the embodiment of the present application, when the electronic device is used as a receiving end of LiFi communication, both the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 can receive optical signals, the optical signals can be converted into LiFi receiving signals of the second frequency through processing of chips, circuits and the like inside the optical fidelity LiFi optical module, and then sent to the conversion module 4, the conversion module 4 can respectively convert one LiFi receiving signal of the second frequency received by the first optical fidelity LiFi optical module 1 and one LiFi receiving signal of the second frequency received by the second optical fidelity LiFi optical module 2 into receiving signals of the first frequency and send the receiving signals of the first frequency to the communication chip 3 for processing, after the communication chip 3 receives the receiving signals of the first frequency, the receiving signals of the first frequency can be processed, so as to process the receiving signals of the first frequency into baseband signals, further acquiring communication data received by the electronic equipment; when electronic equipment is as the sending end of liFi communication, communication chip 3 can handle the baseband signal of treating the transmission, obtains the transmitting signal of first frequency, then sends the transmitting signal of first frequency to conversion module 4, and conversion module 4 can be two ways of liFi transmitting signal of second frequency with the transmitting signal conversion of first frequency to send through first light fidelity LiFi optical module 1 and second light fidelity LiFi optical module 2 respectively.
It should be noted that in the embodiment of the present application, the communication chip 3 needs to support MIMO (multiple input multiple output) technology.
From this, when can realize electronic equipment as the receiving terminal and the sending end of LiFi communication, need not to utilize the external LiFi module of USB interface of electronic equipment, the LiFi communication of electronic equipment can be realized through communication chip among the electronic equipment and network protocol thereof, owing to need not to occupy electronic equipment's original interface, consequently when having avoided carrying out the LiFi communication, unable normal use is occupied other functions of interface, electronic equipment's convenience has been improved, and avoided addding the USB interface in electronic equipment, electronic equipment's inner space has been saved, electronic equipment's integrality and aesthetic property have been guaranteed, user experience has been improved. And because signal transmission is carried out through two paths of transmission paths, the frequency of two paths of signals is the same, the total bandwidth is twice that of the signal transmission carried out through a single path, and therefore, the transmission rate is also twice that of the signal transmission carried out through the single path, and the transmission rate of LiFi communication is improved.
The structure and the operation principle of the conversion module 4 provided in the embodiment of the present application are described below with reference to fig. 2 to 10.
As shown in fig. 2, in an exemplary embodiment, the conversion module 4 may include: a first conversion sub-module 41 and a second conversion sub-module 42;
the first conversion sub-module 41 is configured to convert the LiFi receiving signal with the second frequency received by the first optical receiver 12 into a receiving signal with the first frequency and send the receiving signal to the communication chip 3 for processing, receive the sending signal with the first frequency sent by the communication chip 3, convert the sending signal with the first frequency into a LiFi sending signal with the second frequency, and send the LiFi sending signal with the second frequency through the first optical transmitter 11;
the second conversion sub-module 42 is configured to convert the LiFi receiving signal with the second frequency received by the second optical receiver 22 into a receiving signal with the first frequency and send the receiving signal to the communication chip 3 for processing, and receive the sending signal with the first frequency sent by the communication chip 3, convert the sending signal with the first frequency into a LiFi sending signal with the second frequency, and send the LiFi sending signal with the second frequency through the second optical transmitter 21.
As shown in fig. 3, in an exemplary embodiment, the first converting sub-module 41 includes: a first frequency conversion unit 411, a first signal transceiving unit 412;
the first signal transceiving unit 412 is respectively connected to the first optical transmitter 11 and the first optical receiver 12, and is configured to select one of the first optical transmitter 11 and the first optical receiver 12 for communication;
the first frequency conversion unit 411 is connected to the communication chip 3, and is configured to, when the first signal transceiver unit 412 selects the first optical transmitter 11 for communication, convert the transmission signal of the first frequency sent by the communication chip 3 into a LiFi transmission signal of the second frequency, and send the LiFi transmission signal through the first optical transmitter 11, and when the first signal transceiver unit 412 selects the first optical receiver 12 for communication, convert the LiFi reception signal of the second frequency into a reception signal of the first frequency, and send the reception signal to the communication chip 3 for processing.
In an exemplary embodiment, as shown in fig. 3, the second conversion sub-module 42 includes: a second signal transceiving unit 422 and a second frequency conversion unit 421;
the second signal transceiving unit 422 is respectively connected to the second optical transmitter 21 and the second optical receiver 22, and is configured to select one of the second optical transmitter 21 and the second optical receiver 22 for communication;
the second frequency conversion unit 421 is connected to the communication chip 3, and is configured to convert the transmission signal of the first frequency sent by the communication chip 3 into a LiFi transmission signal of the second frequency and send the LiFi transmission signal through the second optical transmitter 21 when the second signal transceiver 422 selects the second optical transmitter 21 to perform communication, and convert the LiFi reception signal of the second frequency into a reception signal of the first frequency and send the reception signal to the communication chip 3 to perform processing when the second signal transceiver 422 selects the second optical receiver 22 to perform communication.
Specifically, the first signal transceiver unit 412 may include a first switch 4121, and the second signal transceiver unit 422 may include a second switch 4221. The first switch 4121 and the second switch 4221 may be switches such as a single-pole double-throw switch, a toggle switch, and a knob switch, which is not limited in this application.
It is understood that, in practical applications, the first switch 4121 or the second switch 4221 may also be replaced by two switches, for example, the first switch 4121 is replaced by two switches, one of the switches is connected to the first frequency conversion unit 411 and the optical transmitter 11, and the other switch is connected to the first frequency conversion unit 411 and the optical receiver 12, and one of the switches is closed and the other is opened to select one of the optical transmitter 11 and the optical receiver 12 for communication.
In an exemplary embodiment, as shown in fig. 4, the first frequency conversion unit 411 may include: a first oscillator 4111 and a first mixer 4112;
a first oscillator 4111 for providing a first mixing signal;
the first frequency mixer 4112 is connected to the first signal transceiver unit 412, the first oscillator 4111, and the communication chip 3, and is configured to convert the LiFi receiving signal with the second frequency received by the first optical receiver 12 into a receiving signal with the first frequency according to the first frequency mixing signal and send the receiving signal to the communication chip 3 for processing, receive the sending signal with the first frequency sent by the communication chip 3, convert the sending signal with the first frequency into a LiFi sending signal with the second frequency according to the first frequency mixing signal, and send the LiFi sending signal with the second frequency through the optical transmitter 11.
The second frequency conversion unit 421 includes a second oscillator 4211 and a second mixer 4212;
a second oscillator 4211 for providing a second mixing signal;
the second mixer 4212 is connected to the second signal transceiver unit 422, the second oscillator 4211 and the communication chip 3, respectively, and is configured to convert the LiFi receiving signal of the second frequency received by the second optical receiver 22 into a receiving signal of the first frequency according to the second mixing signal and send the receiving signal to the communication chip 3 for processing, and receive the sending signal of the first frequency sent by the communication chip 3, convert the sending signal of the first frequency into a LiFi sending signal of the second frequency according to the second mixing signal, and send the LiFi sending signal through the second optical transmitter 21;
the first mixing signal and the second mixing signal have the same signal frequency.
Specifically, the first mixer 4112 and the second mixer 4212 may be any existing mixer with a frequency conversion function, and the application does not limit the type of the first mixer 4112 and the second mixer 4212.
The first oscillator 4111 and the second oscillator 4211 may be any existing oscillator capable of providing a mixing signal, and the present application does not limit the types of the first oscillator 4111 and the second oscillator 4211.
Specifically, the first mixing signal may be a Local Oscillator (LO) signal, so that the first mixer 4112 may mix the first frequency transmitting signal sent by the communication chip 3 to the second frequency according to the first LO signal provided by the first Oscillator 4111, and mix one LiFi receiving signal of the second frequency received by the first optical receiver 12 to the first frequency according to the first LO signal provided by the first Oscillator 4111.
The second mixing signal may also be an LO signal, so that the second mixer 4212 may mix the transmission signal of the first frequency transmitted by the communication chip 3 to the second frequency according to the second LO signal provided by the second oscillator 4211, and mix one LiFi reception signal of the second frequency received by the second optical receiver 22 to the first frequency according to the second LO signal provided by the second oscillator 4211.
The second frequency is the first frequency minus the signal frequency of the first mixing signal (second mixing signal).
It should be noted that, in order to enable the first mixer 4112 and the second mixer 4212 to perform mixing processing synchronously, so that the first optical fidelity LiFi optical module 1 and the second optical fidelity LiFi optical module 2 can perform LiFi communication synchronously finally, and the correctness of data transmitted by the LiFi communication is ensured, in this embodiment of the application, the first mixer 4112 and the second mixer 4212 may perform mixing processing synchronously according to a clock signal in an electronic device. The clock frequencies of the clock signals from the first mixer 4112 and the second mixer 4212 are the same.
It can be understood that, when the electronic device is used as a receiving end of LiFi communication, the first switch 4121 may select the first optical receiver 12 to be connected to the first mixer 4112 via the first switch 4121, and the second switch 4221 may select the second optical receiver 22 to be connected to the second mixer 4212 via the second switch 4221, so that the first optical receiver 12 and the second optical receiver 22 may receive optical signals simultaneously, after the optical signals are received by the first optical receiver 12, the optical signals are converted into LiFi receiving signals of the second frequency via the internal circuit and chip of the first optical fidelity LiFi optical module 1 and sent to the first mixer 4112, and after the optical signals are received by the second optical receiver 22, the optical signals are converted into LiFi receiving signals of the second frequency via the internal circuit and chip of the second optical fidelity LiFi optical module 2 and sent to the second mixer 4212, so that the first mixer 4112 and the second mixer 4212 may respectively receive the first vibration mixing signals and the second vibration signals provided by the first oscillator 4111 The second mixing signal provided by the oscillator 4211 converts the LiFi receiving signal with the second frequency into a receiving signal with the first frequency, and sends the receiving signal to the communication chip 3 for processing; when the electronic device is used as a transmitting end of LiFi communication, the first switch 4121 may select the first optical transmitter 11 to be connected to the first mixer 4112 through the switch, the second switch 4221 may select the second optical transmitter 21 to be connected to the second mixer 4212 through the second switch 4221, the first mixer 4112 and the second mixer 4212 may receive the transmission signal of the first frequency sent by the communication chip 3 at the same time, and convert the transmission signal of the first frequency into a LiFi transmission signal of the second frequency according to the first mixing signal provided by the first oscillator 4111 and the second mixing signal provided by the second oscillator 4211, and further transmit the LiFi transmission signal through the first optical transmitter 11 and the second optical transmitter 21, respectively.
Therefore, one of the first optical transmitter 11 and the optical receiver 12 can be selected to communicate through the first switch 4121, one of the second optical transmitter 21 and the second optical receiver 22 can be selected to communicate through the second switch 4221, and the conversion module 4 can simultaneously perform frequency conversion on the LiFi receiving signals with the second frequency received by the first optical receiver 12 and the second optical receiver 22 and simultaneously perform frequency conversion on the sending signals with the first frequency sent by the communication chip 3, so that when the electronic equipment is respectively used as a receiving end and a sending end of LiFi communication, signals with the same frequency can be simultaneously transmitted by two transmission paths, the transmission rate of the LiFi communication is improved, the LiFi module is not required to be externally connected with a USB interface of the electronic equipment, the LiFi communication of the electronic equipment can be realized through a communication chip in the electronic equipment and a network protocol thereof, and the original interface of the electronic equipment is not required to be occupied, therefore, when LiFi communication is carried out, other functions of occupied interfaces cannot be normally used, convenience of the electronic equipment is improved, the fact that the USB interface is additionally arranged in the electronic equipment is avoided, the internal space of the electronic equipment is saved, integrity and attractiveness of the electronic equipment are guaranteed, and user experience is improved.
It should be noted that, in the embodiment of the present application, as shown in fig. 4, the first mixer 4112 and the second mixer 4212 may perform frequency conversion on the received signal or the transmitted signal of the first frequency according to the mixing signals of the same frequency provided by different oscillators, or in practical applications, since the first mixer 4112 and the second mixer 4212 perform frequency conversion by using the mixing signals of the same frequency, the first mixer 4112 and the second mixer 4212 may share one oscillator in order to save an internal space of an electronic device and reduce the cost of the LiFi communication apparatus, which is not limited in this application.
In an exemplary embodiment, as shown in fig. 5, the first signal transceiving unit 412 may further include: and a first amplifier 4122, an input end of the first amplifier 4122 being connected to one end of the first switch 4121, and an output end of the first amplifier 4122 being connected to the first optical transmitter 11, for amplifying the LiFi transmission signal of the second frequency.
The first amplifier 4122 may be any device capable of amplifying a voltage or power of a signal, such as an operational amplifier, but is not limited thereto.
Before the first light emitter 11 is used for transmitting the LiFi transmission signal with the second frequency, the first amplifier 4122 is used for amplifying the voltage or the power of the LiFi transmission signal with the second frequency, so that the effect of enhancing the LiFi transmission signal can be achieved, and when the LiFi transmission signal with the second frequency is weak, the electronic device can still normally perform the LiFi communication.
In an exemplary embodiment, as shown in fig. 6, the first signal transceiving unit 412 may further include: and a second amplifier 4123, an input end of the second amplifier 4123 being connected to the first optical receiver 12, and an output end of the second amplifier 4123 being connected to the other end of the first switch 4121, for amplifying the LiFi received signal at the second frequency.
The second amplifier 4123 may be any device capable of amplifying the voltage or power of the signal, such as an operational amplifier, but is not limited thereto.
Before the LiFi receiving signal of the second frequency received by the first optical receiver 12 is sent to the first mixer 4112 through the first switch 4121 for processing, the voltage or the power of the LiFi receiving signal of the second frequency is amplified by the second amplifier 4123, so that the effect of enhancing the LiFi receiving signal can be achieved, when the LiFi receiving signal of the second frequency is weak, the conversion module 4 can still perform normal processing on the LiFi receiving signal of the second frequency, and the electronic device can perform normal LiFi communication.
In an exemplary embodiment, as shown in fig. 7, the first signal transceiver unit 412 may further include a first amplifier 4122 and a second amplifier 4123, so as to amplify both the LiFi receiving signal of the second frequency and the LiFi transmitting signal of the second frequency, so as to ensure that the electronic device performs LiFi communication normally.
It can be understood that, when the first frequency conversion unit 411 receives the LiFi receiving signal of the second frequency, and the first frequency conversion unit 411 sends out the LiFi sending signal of the second frequency, the LiFi sending signal of the second frequency obtained by frequency conversion may be transmitted through the single-ended network architecture, that is, the first frequency conversion unit 411 transmits the LiFi sending signal of the second frequency obtained by frequency conversion to the first signal transceiving unit 412 through one signal line, and receives the LiFi receiving signal of the second frequency through one signal line, or may also transmit through the differential network architecture, that is, the first frequency conversion unit 411 transmits the LiFi sending signal of the second frequency obtained by frequency conversion to the first signal transceiving unit 412 through two signal lines, and receives the LiFi receiving signal of the second frequency through two signal lines. Wherein, the signal frequency transmitted in two signal lines is the same.
After transmitting the LiFi transmit signal at the second frequency or the LiFi receive signal at the second frequency over the differential network architecture, as shown in fig. 8, the first converting sub-module 41 may further include a first network matching unit 413, the first matching network unit 413 is respectively connected to the first frequency converting unit 411 and the first signal transceiving unit 412, when the first signal transceiver unit 412 selects to communicate through the first optical transmitter 11, the two paths of LiFi transmission signals with the second frequency output by the first frequency conversion unit 411 are combined into one path of LiFi transmission signal with the second frequency, and are transmitted through the first optical transmitter 11, and when the first signal transceiver unit 412 selects to communicate through the first optical receiver 12, the LiFi receiving signal with the second frequency transmitted by the first signal transceiver unit 412 is divided into two paths of LiFi receiving signals with the second frequency, and the two paths of LiFi receiving signals are transmitted to the first frequency conversion unit 411 for processing.
In a specific implementation, the first matching network unit 413 may be implemented by any circuit capable of converting a differential network architecture into a single-ended network architecture in the related art, such as the circuit shown in fig. 9, which is not limited in this application.
By utilizing the differential network architecture to transmit the LiFi receiving signal and the LiFi sending signal, the anti-interference capability of the signals is improved, and the reliability of LiFi communication is further improved.
It should be noted that the structure and principle of the second converting sub-module 42 are similar to those of the first converting sub-module 41 shown in fig. 5-9, and the structure and principle of the second converting sub-module 42 are not described in detail herein.
Taking fig. 10 as an example, the first conversion sub-module 41 may include a first switch 4121, a first oscillator 4111, a first mixer 4112, a first amplifier 4122, a second amplifier 4123, and a first matching network unit 413, and the second conversion sub-module 42 may include a second switch 4221, a second mixer 4212, a third amplifier 4222, a fourth amplifier 4223, and a second matching network unit 423, where the second mixer 4212 and the first mixer 4112 share the first oscillator 4111. From this, through utilizing first conversion submodule 41 and second conversion submodule 42 to two LiFi optical module respectively received LiFi signal of second frequency handle in order to handle through communication chip 3, and the LiFi who is fit for carrying on the second frequency of LiFi communication is sent in order to send through two LiFi optical module respectively with the sending signal conversion of the first frequency after communication chip 3 handles, make electronic equipment need not to utilize the external LiFi module of USB interface, utilize the inside integrated circuit of electronic equipment can realize LiFi communication, electronic equipment's communication range of application has been expanded. And because signal transmission is carried out through two paths of transmission paths, the frequency of two paths of signals is the same, the total bandwidth is twice that of the signal transmission carried out through a single path, and therefore, the transmission rate is also twice that of the signal transmission carried out through the single path, and the transmission rate of LiFi communication is improved.
It is worth noting that in the embodiment of the application, by arranging two optical modules and utilizing two transmission paths to transmit signals, the total bandwidth is twice that of a single path, and the corresponding transmission rate is twice that of the single path.
To achieve the above embodiments, the present application further proposes an electronic device, wherein the electronic device includes the LiFi communication apparatus according to the first aspect.
It should be noted that the foregoing explanation of the embodiment of the communication apparatus of the electronic device is also applicable to the electronic device of the embodiment, and the implementation principle thereof is similar and will not be described herein again.
The electronic device may be a smart phone, a tablet computer, a personal digital assistant, and the like, which is not limited in this application.
The embodiment of the application provides electronic equipment, including LiFi communication device, this communication device includes two light fidelity LiFi optical module that are used for carrying out the LiFi communication, the communication chip, the conversion module can be changed the LiFi signal transmission of two way second frequencies with the signal transmission of the first frequency that the communication chip sent, and send through two light fidelity LiFi optical module respectively, and the LiFi received signal of the second frequency that receives respectively two light fidelity LiFi optical module converts the WiFi received signal of first frequency into and sends to the communication chip and handles. Because the signal transmission with the same frequency is realized by utilizing the two transmission paths, the transmission rate of the LiFi communication is improved, the LiFi communication of the electronic equipment can be realized without utilizing a USB interface of the electronic equipment to externally connect a LiFi module, the convenience of the electronic equipment is improved, the internal space of the electronic equipment is saved, and the integrity and the attractiveness of the electronic equipment are ensured.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (13)

1. A LiFi communication device, comprising:
the first light fidelity LiFi optical module and the second light fidelity LiFi optical module are respectively used for LiFi communication;
a communication chip; and
with the communication chip, first light fidelity LiFi optical module the conversion module that second light fidelity LiFi optical module links to each other respectively for receive the signal transmission of the first frequency that the communication chip sent, and convert into the LiFi signal transmission of two way second frequencies, and pass through respectively first light fidelity LiFi optical module with second light fidelity LiFi optical module sends, and will one way LiFi received signal of second frequency that first light fidelity LiFi optical module received with one way LiFi received signal of second frequency that second light fidelity LiFi optical module received converts the received signal of first frequency into respectively, and send to the communication chip handles.
2. The LiFi communication device of claim 1, wherein the communication chip is a WiFi communication chip, and the first frequency is in an operating band of WiFi communication.
3. The LiFi communication device of claim 1, wherein the first LiFi optical module comprises a first optical transmitter and a first optical receiver respectively connected to the conversion module, wherein the second LiFi optical module comprises a second optical transmitter and a second optical receiver respectively connected to the conversion module, wherein the first optical transmitter and the second optical transmitter are configured to transmit the LiFi transmission signal at the second frequency, and wherein the first optical receiver and the second optical receiver are configured to receive the LiFi reception signal at the second frequency.
4. The LiFi communication device of claim 3, wherein the conversion module comprises a first conversion sub-module and a second conversion sub-module;
the first conversion sub-module is used for converting the LiFi receiving signal of the second frequency received by the first optical receiver into the receiving signal of the first frequency and sending the receiving signal of the first frequency to the communication chip for processing, receiving the sending signal of the first frequency sent by the communication chip, converting the sending signal of the first frequency into the LiFi sending signal of the second frequency and sending the LiFi sending signal of the second frequency through the first optical transmitter;
the second conversion sub-module is used for converting the LiFi receiving signals of the second frequency received by the second light receiver into the receiving signals of the first frequency and sending the receiving signals to the communication chip for processing, receiving the sending signals of the first frequency sent by the communication chip, converting the sending signals of the first frequency into LiFi sending signals of the second frequency and sending the LiFi sending signals through the second light emitter.
5. The LiFi communication device of claim 4, wherein the first conversion sub-module comprises: the first signal transceiving unit and the first frequency conversion unit;
the first signal transceiving unit is respectively connected with the first optical transmitter and the first optical receiver and is used for selecting one path of the first optical transmitter and the first optical receiver to carry out communication;
the first frequency conversion unit is connected with the communication chip and used for converting a sending signal of a first frequency sent by the communication chip into a LiFi sending signal of a second frequency when the first signal transceiver unit selects the first light emitter to communicate, and sending the LiFi sending signal of the second frequency through the first light emitter, and converting a LiFi receiving signal of the second frequency into a receiving signal of the first frequency when the first signal transceiver unit selects the first light receiver to communicate, and sending the LiFi receiving signal of the second frequency to the communication chip to process.
6. The LiFi communication device of claim 5, wherein the first frequency conversion unit comprises: a first oscillator and a first mixer;
the first oscillator is used for providing a first mixing signal;
the first frequency mixer is respectively connected with the first signal transceiving unit, the first oscillator and the communication chip, and is used for converting the LiFi receiving signal of the second frequency received by the first optical receiver into the receiving signal of the first frequency according to the first frequency mixing signal and sending the receiving signal of the first frequency to the communication chip for processing, receiving the sending signal of the first frequency sent by the communication chip, converting the sending signal of the first frequency into the LiFi sending signal of the second frequency according to the first frequency mixing signal, and sending the LiFi sending signal through the optical transmitter.
7. The LiFi communication device of claim 6, wherein the second conversion sub-module comprises: a second signal transceiving unit and a second frequency conversion unit;
the second signal transceiving unit is respectively connected with the second optical transmitter and the second optical receiver and is used for selecting one path of the second optical transmitter and the second optical receiver to carry out communication;
the second frequency conversion unit is connected with the communication chip and used for converting the transmitting signal of the first frequency transmitted by the communication chip into the LiFi transmitting signal of the second frequency when the second signal transceiver unit selects the second light emitter to communicate, and transmitting the LiFi transmitting signal through the second light emitter, and converting the LiFi receiving signal of the second frequency into the receiving signal of the first frequency when the second signal transceiver unit selects the second light receiver to communicate, and transmitting the LiFi receiving signal to the communication chip to process.
8. The LiFi communication device of claim 7, wherein the second frequency conversion unit comprises a second oscillator and a second mixer;
the second oscillator is used for providing a second mixing signal;
the second frequency mixer is respectively connected with the second signal transceiver unit, the second oscillator and the communication chip, and is configured to convert the LiFi receiving signal of the second frequency received by the second optical receiver into a receiving signal of the first frequency according to the second frequency mixing signal and send the receiving signal to the communication chip for processing, and receive the sending signal of the first frequency sent by the communication chip, convert the sending signal of the first frequency into a LiFi sending signal of the second frequency according to the second frequency mixing signal, and send the LiFi sending signal through the second optical transmitter;
wherein the first mixing signal and the second mixing signal have the same signal frequency.
9. The LiFi communication device of claim 7, wherein the first signal transceiver unit comprises a first switch, and the second signal transceiver unit comprises a second switch.
10. The LiFi communication device of claim 9, wherein the first signal transceiving unit further comprises: a first amplifier;
the input end of the first amplifier is connected with one end of the first switch, and the output end of the first amplifier is connected with the first light emitter and used for amplifying the LiFi transmission signal with the second frequency.
11. The LiFi communication device according to claim 9 or 10, wherein the first signal transceiving unit further comprises: a second amplifier;
the input end of the second amplifier is connected with the first light receiver, and the output end of the second amplifier is connected with the other end of the first switch and used for amplifying the LiFi receiving signal with the second frequency.
12. The LiFi communication device of claim 5, wherein the LiFi sending signals of the second frequency and the LiFi receiving signals of the second frequency are transmitted using a differential network architecture, the first conversion sub-module further comprising: a first matching network element;
the first matching network unit is respectively connected with the first frequency conversion unit and the first signal transceiving unit and used for combining two LiFi transmission signals of the second frequency output by the first frequency conversion unit into one LiFi transmission signal of the second frequency when the first signal transceiving unit selects to communicate through the first light emitter and transmitting the LiFi transmission signal through the first light emitter, and the first signal transceiving unit selects to communicate through the first light receiver and divides the LiFi reception signal of the second frequency transmitted by the first signal transceiving unit into two LiFi reception signals of the second frequency and transmits the LiFi reception signals to the first frequency conversion unit for processing.
13. An electronic device, comprising the LiFi communication apparatus according to any one of claims 1 to 12.
CN201911223265.7A 2019-12-03 2019-12-03 LiFi communication device and electronic equipment Active CN112910552B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911223265.7A CN112910552B (en) 2019-12-03 2019-12-03 LiFi communication device and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911223265.7A CN112910552B (en) 2019-12-03 2019-12-03 LiFi communication device and electronic equipment

Publications (2)

Publication Number Publication Date
CN112910552A true CN112910552A (en) 2021-06-04
CN112910552B CN112910552B (en) 2023-09-01

Family

ID=76104535

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911223265.7A Active CN112910552B (en) 2019-12-03 2019-12-03 LiFi communication device and electronic equipment

Country Status (1)

Country Link
CN (1) CN112910552B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103795734A (en) * 2014-03-07 2014-05-14 福州瑞芯微电子有限公司 Li-fi supporting device and method based on android system
CN106059662A (en) * 2016-07-13 2016-10-26 西安邮电大学 Ultraviolet communication device
CN207543109U (en) * 2017-11-28 2018-06-26 广州市浩洋电子股份有限公司 A kind of visible light communication system based on SDR technologies
CN110048773A (en) * 2019-03-15 2019-07-23 哈尔滨工业大学（深圳） Visible light communication method, signal processing method, system and storage medium

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103795734A (en) * 2014-03-07 2014-05-14 福州瑞芯微电子有限公司 Li-fi supporting device and method based on android system
CN106059662A (en) * 2016-07-13 2016-10-26 西安邮电大学 Ultraviolet communication device
CN207543109U (en) * 2017-11-28 2018-06-26 广州市浩洋电子股份有限公司 A kind of visible light communication system based on SDR technologies
CN110048773A (en) * 2019-03-15 2019-07-23 哈尔滨工业大学（深圳） Visible light communication method, signal processing method, system and storage medium

Also Published As

Publication number Publication date
CN112910552B (en) 2023-09-01

Similar Documents

Publication Publication Date Title
US8638819B2 (en) Wireless communication transceiver and mode-switch device thereof
WO2021143942A1 (en) Sounding reference signal transmission method and related product
CN101459442B (en) Method and system for processing communication signal
US20110065400A1 (en) Integrated antenna array and rf front end module
CN105099414A (en) Rf transformer based tx/rx integrated rf switch
WO2022052879A1 (en) Modulation method and apparatus, communication device, and readable storage medium
CN110808757A (en) Radio frequency front-end circuit and terminal equipment
CN112152705B (en) Data transmission method, device, storage medium and electronic equipment
CN113114300B (en) Electronic equipment and control method
CN102273067A (en) Radio receiver
CN116346159B (en) Radio frequency channel multiplexing system of communication terminal
US7079817B2 (en) Radio communication device that meets a plurality of frequency bands
US9413444B2 (en) Radio-frequency processing circuit and related wireless communication device
CN112910553B (en) LiFi communication device and electronic equipment
CN112910552B (en) LiFi communication device and electronic equipment
US7058379B2 (en) Orthogonal frequency division multiplexing transceiver and method of operating the same
CN211830764U (en) Radio frequency circuit and electronic equipment
CN210246745U (en) Radio frequency control circuit and mobile terminal
WO2022067609A1 (en) Multi-band phased array and electronic device
Ding et al. Dual-band cooperative backscatter communication system
CN114402534B (en) Communication device, terminal device, and communication method
CN112583456B (en) Communication device
CN112886983B (en) Communication transceiver and terminal device
WO2022252074A1 (en) Control method and apparatus for radio frequency circuit
WO2024050789A1 (en) Communication method and related apparatus

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant