• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a digital communication device (1) comprising: - a digital communication terminal (5), - a luminaire (3) comprising: ○ a light-emitting diode lamp (7), ○ a data transmission device Li -Fi, and - a computer server (9) hosting data, communicating with said luminaire. According to the invention, the digital communication device is remarkable in that the luminaire (3) comprises at least one communication beacon (15) according to the Bluetooth® standard connected to said data transmission device, said beacon being parameterized for: inform the digital communication terminal (5) of the presence of said luminaire; - Receive an order of ignition and / or extinction of said at least one bulb of the luminaire; - Send said ignition command and / or extinction to said at least one bulb (7).
    公开号:FR3039739A1
    申请号:FR1557322
    申请日:2015-07-30
    公开日:2017-02-03
    发明作者:Garry Yann Mac；Etienne Beneteau
    申请人:Actiled Lighting；Smart Lighting Alliance；Ticatag；
    IPC主号:
    专利说明:

    The present invention relates to a digital communication device comprising a light-emitting diode luminaire adapted to transmit a digital data stream of "Li-Fi" type, and a digital communication terminal able to receive this type of data. The present invention also relates to a method of communication between said terminal and said luminaire.
    A wireless communication protocol makes it possible to wirelessly connect a plurality of computing devices within a computer network to enable data transmission between them.
    As known wireless communication protocol of the prior art can be cited the "Wi-Fi®" governed by the standard "IEEE 802" for local networks based on the transmission of digital data.
    Wi-Fi® is used to create a wireless LAN with a transmission rate between UMbits / s and 450Mbps over a radius of several tens of meters, using radio waves from the electromagnetic spectrum.
    Another known wireless digital communication technique of the prior art is that based on the "Li-Fi" technology, abbreviation of "Light-Fidelity" in English terminology, which consists of using the optical part of the electromagnetic spectrum to the place of radio waves used in Wi-Fi®, to digitally broadcast multimedia content such as music or video, for example.
    Communication via the Li-Fi protocol consists in modulating the light intensity of a light-emitting diode lamp (often referred to by the acronym "LED" for "Light-Emitting Diode" in English terminology) connected to the Internet network.
    Switching capabilities between an "on" state and an "off" state of an LED can be up to a billion times per second, making the state of the LEDs undetectable by the human eye.
    Each state of an LED corresponds to a bit (1 or 0), and a sequence of states of switching on and off of an LED makes it possible to create a digital flow corresponding to the electrical input signal received by the luminaire. connected to the Internet. The switching capacity of ultra-high frequency LEDs makes it possible to transmit sound, images, videos or to display the contents of an Internet page on a digital communication terminal adapted to receive Li-Fi type data. .
    The advantages of the Li-Fi communication technique compared to the Wi-Fi® communication technique are multiple: - the data transmission speed via Li-Fi is much higher than that achieved by the Wi-fi® technology in that it can reach a speed approaching 1 Gbit / s; - No radio wave, potentially harmful to the health of a user, is transmitted, in that the Li-Fi technology is based on the light modulation operating through a succession of ignitions and extinctions of LEDs; - no interference between radio waves and no electromagnetic interference.
    In addition, the Li-Fi communication protocol advantageously allows to decongest the 2.4 GHz frequency band used to date by almost all wireless communication protocols.
    In addition, the applications of the Li-Fi communication technology are numerous. By way of example, it is possible to allow a user having a Li-Fi compatible receiving terminal of the "smartphone" or digital tablet type to geolocate without using the GSM, 3G, 4G or Wi-Fi® network. its receiving terminal.
    This technology can also be used in places or public spaces such as roads, parks, museums, etc., or private spaces such as shops. For example, it is possible thanks to the Li-Fi technology to combine both the lighting of a painting in a museum and the dissemination of content related to this painting.
    In addition, this technology is particularly advantageous for municipalities, in that it allows to provide a very high number of connection points, with a small financial investment. Indeed, any LED luminaire equipped with Li-Fi broadcast means is adapted to broadcast multimedia content. Thus, the set of streetlights of a municipality is likely to be used as a means of broadcasting a multimedia content.
    However, since the Li-Fi technology requires the lighting of the luminaire to digitally transmit multimedia content, energy consumption can be very important at the scale of a city. In addition, the search for luminaires equipped with broadcasting means. Fi can be tedious for a user seeking such a connection point.
    The present invention aims to solve the aforementioned drawbacks, and proposes a simple way to implement and economic, to limit the energy consumption of luminaires equipped with Li-Fi broadcast means and providing a user search assistance of said luminaries.
    The present invention relates, for this purpose, to a digital communication device comprising: a digital communication terminal comprising means for receiving a Li-Fi stream and means of communication according to the Bluetooth® standard, a luminaire comprising: at least one bulb comprising a plurality of light-emitting diodes, at least one Li-Fi type data transmission device, connected to said light bulb, and a computer server hosting data, communicating with said luminaire, said communication device; being remarkable in that the luminaire comprises at least one bidirectional communication beacon according to the Bluetooth® standard connected to said data transmission device, said beacon being configured to: - inform the digital communication terminal of the presence of said luminaire; - Receive an order of ignition and / or extinction of said at least one bulb of the luminaire; - Send said ignition command and / or extinction to said at least one bulb.
    Thus, by providing to equip a Li-Fi type of luminaire with at least one communication beacon according to the Bluetooth® standard, set to inform a digital communication terminal of the presence of said luminaire and to send an ignition command and / or extinguishing the luminaire bulb, it is now possible to remotely control the switching on and off of the Li-Fi luminaire from the digital communication terminal.
    This very advantageously makes it possible to limit the energy consumption of the luminaire, in that the Li-Fi luminaire can now be switched on at the request by a user.
    In addition, by setting the communication beacon so that it informs the communication terminal of the presence of a Li-Fi luminaire, the device according to the invention makes it possible to help a user to search for a luminaire Li-Fi. Fi, for example when the user moves on the streets of a city.
    Finally, the communication tag according to the Bluetooth® protocol is particularly advantageous compared to other communication devices, in that it has a very low energy consumption. Moreover, its inexpensive cost allows a mass deployment of Li-Fi luminaires according to the invention, for example at the scale of a city.
    According to optional features, the communication tag according to the Bluetooth® standard is further set to send information on the terminal in transmission data mode according to the Bluetooth® standard.
    According to a first embodiment, the information sent by the communication beacon relates to maintenance operations.
    According to a second embodiment, the information sent by the communication beacon defines a backup data transmission channel.
    The term "backup data channel" means a channel allowing communication when the luminaire fails to communicate in Li-Fi mode with the digital communication terminal of the user. In such a situation, the communication backup channel is established via the Bluetooth® standard and is deployed to establish a dialogue between the luminaire and the digital communication terminal of the user.
    The communication tag according to the Bluetooth® standard is for example connected to the Li-Fi type data transmission device by a serial cable of "USB" or "UART" type, which makes it easy to integrate with the luminaire. By way of example, the luminaire is a street lamp connected to the urban electrical network, which makes it possible to spread the device according to the invention on a large scale.
    The present invention also relates to a method of communication between a digital communication terminal comprising means for receiving a Li-Fi stream and communication means according to the Bluetooth® standard, and a luminaire comprising: at least one bulb comprising a plurality of light-emitting diodes, - at least one Li-Fi type data transmission device, connected to said light bulb, - at least one communication beacon according to the Bluetooth® standard, connected to said data transmission device, said luminaire communicating with at least one computer server hosting data, the communication method according to the invention being remarkable in that it comprises the following steps: the communication beacon transmits a radio signal according to the Bluetooth® standard; the communication terminal detects said signal when said terminal is in the transmission field of said beacon; - The communication tag sends a notification on the communication terminal to inform said terminal of the presence of said luminaire; the communication terminal sends the communication beacon an instruction for lighting the luminaire; the beacon sends the luminaire data transmission device an order to switch on the luminaire bulb; the luminaire sends data of Li-Fi type to the communication terminal.
    The communication method according to the invention further comprises a step according to which the communication tag according to the Bluetooth® standard sends an order to switch off the luminaire bulb when the user leaves the transmission field of said beacon. Other features, objects and advantages of the present invention will appear on reading the following description and on examining the appended figures, in which: FIG. 1 represents the communication device according to the invention; FIG. 2 illustrates the steps of the communication method according to the invention.
    Throughout the figures, identical or similar references represent identical or similar organs or sets of members.
    A digital communication device 1 according to the invention is shown in FIG. 1 to which reference is made.
    This device comprises at least one Li-Fi type luminaire 3 and at least one digital communication terminal 5.
    In the description and the claims of the present application, the term digital communication terminal means a mobile terminal pocket type "SmartPhone" in English terminology, a digital tablet or a computer.
    The digital communication terminal 5 is equipped with means for receiving a Li-Fi stream, for example a photosensitive surface, and is equipped with communication means according to the Bluetooth® standard.
    The luminaire 3 comprises one (or more) bulb (s) 7 connected to an electrical network, for example the urban electrical network when the luminaire is a street lamp.
    A bulb 7 comprises a plurality of light-emitting diodes, not shown, allowing a switching capacity between a lit state and a state turned off at a very high frequency, up to a billion times per second.
    The luminaire 3 is also equipped with a Li-Fi type data transmission device, for example a Li-Fi card. This device, known from the prior art, is connected to a computer server 9, for example connected to the Internet network 11, giving access to multimedia data.
    The Li-Fi card, connected to the light-emitting diode bulb 7, makes it possible to convert the stream of data received from the computer server 9 into a stream 13 of binary digital data (bit sequences) defined by an ignition sequence. extinction of the diodes of the bulb 7 of the luminaire 3. The stream 13 of digital data is transmitted to the digital communication terminal 5.
    Alternatively, the computer server may be constituted by a database, or by shared computing resources whose access, via a telecommunications network, is frequently referred to by the English term "cloud computing" for "cloud computing" .
    According to the invention, the luminaire 3 comprises a bidirectional communication beacon 15 according to the Bluetooth® standard, connected to the Li-Fi data transmission device by connection means such as a "USB" cable, which is an acronym for "Universal Serial Bus", or a cable "UART", acronym for Universal Asynchronous ReceiverTransmitter.
    The communication beacon 15 is in the form of a housing containing a Bluetooth® card. This card includes a "firmware" to set the Bluetooth® card. According to the invention, the Bluetooth® card is set to inform the digital communication terminal of the presence of the luminaire 3, to receive an order of lighting and / or extinguishing said at least one bulb of the luminaire and to send said order d igniting and / or extinguishing said at least one bulb.
    An example of use of the assembly according to the invention will now be described, in the case where the luminaire 3 according to the invention is constituted by a street lamp.
    A user installs on his digital communication terminal 5 an application available for download on platforms for downloading applications such as "APP STORE®" or "ANDROID MARKET®" for example.
    The communication beacon 15 which equips the luminaire 3 according to the invention continuously transmits a radio signal according to the Bluetooth® standard. A user who tries to connect to a Li-Fi luminaire, and who moves in the field of emission of the beacon 15, about ten meters around said beacon, detects the signal sent by the beacon 15 (step A), and receives a notification on its digital communication terminal 5 informing it of the presence of a Li-Fi type of luminaire (step B).
    This notification is in the form of a vibratory signal, light, sound, or in the form of a pellet on the logotype of the application downloaded and installed on the communication terminal 5.
    When the user starts the application, he has the possibility to send an instruction to the beacon 15 to turn on the luminaire 3 (step C). The communication between the communication terminal 5 and the beacon 15 is performed according to the Bluetooth® standard, which makes it possible to overcome the need for the presence of an Internet network, 3G, 4G, Wi-Fi® to activate the device. lamp.
    If the user does not instruct beacon 15 to turn on fixture 3, the user can browse the Internet using available conventional networks, for example, 2G, 3G, 4G, Wi-Fi®, etc.
    If the user instructs the beacon 15 to turn on the luminaire 3, the beacon 15, connected to the Li-Fi data transmission device such as a Li-Fi card by means of a "USB" or "UART" cable , address to said card an ignition order of the bulb 7 of the luminaire 3 (step D). The application installed on the communication terminal 5 then directs the user to a home portal 17 which asks the user for authorization of the conditions of use, and its agreement to be geo-located (step E). The home portal 17 may be in the form of a page indicating for example to the user the proposed activities around the luminaire.
    When the user has accepted the conditions of use proposed on the home portal, and when the user is in the emission field of the light-emitting diodes of the bulb 7 of the luminaire 3, the pages of the Internet sites that the user wishes to consult are converted into binary digital data by the Li-Fi card connected to the light-emitting diode bulb 7, which makes it possible to define an on / off sequence of the diodes of the light bulb and to establish a Li-Fi connection between the luminaire 3 and the communication terminal 5 of the user (step F).
    When the user leaves the field of diffusion of the luminaire bulb, the communication beacon 15 sends an order of extinction of the bulb 7 of the luminaire, which instantaneously interrupts the connection to the Li-Fi network. However, the user retains the ability to access server data via 3G, 4G or Wi-Fi networks when he is outside the light emitting diode of the light bulb of fixture 3.
    The communication from the terminal 5 to the luminaire 3 is performed according to the Li-Fi protocol when said terminal is equipped with a data transmission device according to the Li-Fi protocol, or via other communication networks such as 3G, 4G, Wi-Fi® for example, in the case where the terminal 5 is not equipped with Li-Fi data transmission means.
    权利要求:
    Claims (8)
    [1" id="c-fr-0001]
    1. Digital communication device (1) comprising: - a digital communication terminal (5) comprising means for receiving a Li-Fi stream and communication means according to the Bluetooth® standard, - a luminaire (3) comprising at least one light bulb (7) comprising a plurality of light-emitting diodes, at least one Li-Fi type data transmission device, connected to said light bulb, and a computer server (9) hosting data, communicating with said light-emitting diode, said luminaire, said digital communication device being characterized in that the luminaire (3) comprises at least one bidirectional communication beacon (15) according to the Bluetooth® standard connected to said data transmission device, said beacon being configured to: - inform the digital communication terminal (5) of the presence of said luminaire; - receive an order of ignition and / or extinction of said at least one bulb (7) of the luminaire (3); - Send said ignition command and / or extinction to said at least one bulb (7).
    [2" id="c-fr-0002]
    2. Digital communication device (1) according to claim 1, characterized in that the communication beacon (15) according to the Bluetooth® standard is further set to send information on the terminal (5) in data transmission mode according to the Bluetooth standard.
    [3" id="c-fr-0003]
    Digital communication device (1) according to claim 2, characterized in that the information sent by the communication beacon (15) relates to maintenance operations.
    [4" id="c-fr-0004]
    Digital communication device (1) according to claim 2, characterized in that the information sent by the communication beacon (15) defines a data transmission backup channel.
    [5" id="c-fr-0005]
    5. Digital communication device (1) according to any one of claims 1 to 4, characterized in that the communication beacon (15) according to the Bluetooth® standard is connected to the Li-Fi type data transmission device by a serial cable of "USB" or "UART" type.
    [6" id="c-fr-0006]
    6. Digital communication device (1) according to one of claims 1 to 5, characterized in that the luminaire (3) is a lamppost connected to the urban electrical network.
    [7" id="c-fr-0007]
    7. A method of communication between a digital communication terminal (5) comprising means for receiving a Li-Fi stream and means of communication according to the Bluetooth® standard, and a luminaire (3) comprising: - at least one light bulb (7) comprising a plurality of light-emitting diodes, - at least one Li-Fi type data transmission device, connected to said light bulb, - at least one communication beacon (15) according to the Bluetooth® standard, connected to said light-emitting device, data transmission, said luminaire communicating with at least one computer server (9) hosting data, the communication method being characterized in that it comprises the following steps: the communication beacon (15) transmits a radio signal according to the Bluetooth® standard; the communication terminal (5) detects said signal when said terminal is in the transmission field of said beacon; - The communication beacon (15) sends a notification on the communication terminal (5) to inform said terminal of the presence of said luminaire (3); - The communication terminal (5) sends the communication beacon (15) an ignition instruction of the luminaire (3); - The beacon (15) sends to the data transmission device of the luminaire (3) an ignition order of the bulb (7) of the luminaire (3); the luminaire (3) sends Li-Fi type data to the communication terminal (5).
    [8" id="c-fr-0008]
    8. Communication method according to claim 7, characterized in that it further comprises a step according to which the beacon (15) communication according to the Bluetooth® standard sends an order of extinction of the bulb (7) of the luminaire (3) when the user leaves the transmission field of said beacon.
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    同族专利:
    公开号 | 公开日
    FR3039739B1|2018-09-14|
    WO2017017395A1|2017-02-02|
    引用文献:
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    法律状态:
    2016-07-21| PLFP| Fee payment|Year of fee payment: 2 |
    2017-02-03| PLSC| Search report ready|Effective date: 20170203 |
    2017-07-20| PLFP| Fee payment|Year of fee payment: 3 |
    2020-04-17| PLFP| Fee payment|Year of fee payment: 6 |
    2021-04-16| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1557322A|FR3039739B1|2015-07-30|2015-07-30|DEVICE AND METHOD FOR COMMUNICATING BETWEEN A LI-FI TYPE LUMINAIRE AND A COMMUNICATION TERMINAL|
    FR1557322|2015-07-30|FR1557322A| FR3039739B1|2015-07-30|2015-07-30|DEVICE AND METHOD FOR COMMUNICATING BETWEEN A LI-FI TYPE LUMINAIRE AND A COMMUNICATION TERMINAL|
    PCT/FR2016/051998| WO2017017395A1|2015-07-30|2016-08-01|Communication between a li-fi lamp and a communication terminal|
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