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WO2018171091A1 - Procédé et système de transmission d'informations basés sur la lumière visible - Google Patents

Procédé et système de transmission d'informations basés sur la lumière visible Download PDF

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Publication number
WO2018171091A1
WO2018171091A1 PCT/CN2017/093014 CN2017093014W WO2018171091A1 WO 2018171091 A1 WO2018171091 A1 WO 2018171091A1 CN 2017093014 W CN2017093014 W CN 2017093014W WO 2018171091 A1 WO2018171091 A1 WO 2018171091A1
Authority
WO
WIPO (PCT)
Prior art keywords
information
flash
optical signal
visible light
preset
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.)
Ceased
Application number
PCT/CN2017/093014
Other languages
English (en)
Chinese (zh)
Inventor
袁晖
李凝华
杨洋
蔡一波
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.)
Shenzhen Ikmak Tech Co Ltd
Original Assignee
Shenzhen Ikmak Tech Co 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 Shenzhen Ikmak Tech Co Ltd filed Critical Shenzhen Ikmak Tech Co Ltd
Publication of WO2018171091A1 publication Critical patent/WO2018171091A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • 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
    • 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

Definitions

  • the present invention relates to the field of visible light communication technologies, and in particular, to an information transmission method and a conduction system based on visible light.
  • common wireless information transmission methods include WiFi, Bluetooth, mobile communication, Zigbee, etc.
  • WiFi Wireless Fidelity
  • Bluetooth Wireless Fidelity
  • mobile communication Wireless Fidelity
  • Zigbee Wireless Fidelity
  • the main object of the present invention is to provide a method for information transmission based on visible light, which aims to reduce the cost of wireless information transmission and improve the interactivity between smart devices.
  • the visible light-based information transmission method provided by the present invention comprises the following steps:
  • the method further includes the steps of:
  • the intelligent hardware converts the automatically acquired information or the information to be transmitted written by the configuration into an optical signal.
  • the flash information includes a field header, an information content, and a field tail.
  • the step of starting to store the optical signal includes:
  • the step of stopping the storing of the flash information when the flash information meets the second preset condition comprises:
  • Another object of the present invention is to provide a visible light-based information transmission system including an App terminal and intelligent hardware for transmitting an optical signal, wherein the App terminal includes:
  • An image acquisition module acquires an optical signal emitted by the intelligent hardware
  • a photoelectric conversion module that converts the optical signal into flash information
  • a determining module when the flash information meets the first preset condition, starting to store the flash information, and when the flash information meets the second preset condition, stopping storing the flash information;
  • the processing module identifies, judges, and interprets the stored flash information.
  • the intelligent hardware includes:
  • the information conversion device converts the automatically acquired information or the information to be transmitted written by the configuration into a lighting instruction
  • the illumination module drives the light source to emit an optical signal according to the illumination command.
  • the flash information includes a field header, an information content, and a field tail.
  • the determining module is configured to:
  • the determining module is further configured to:
  • the visible light-based information transmission method of the invention converts the light signal emitted by the intelligent hardware into flash information, and stores the flash information when the flash information satisfies the preset condition, and finally identifies, judges and interprets the stored flash information.
  • the information that the intelligent hardware transmits through the optical signal does not need to install a specific communication module on the intelligent hardware, which saves the cost of wireless information transmission, reduces the information interaction restriction between the smart devices without the specific communication module, and improves The interactivity between smart devices.
  • FIG. 1 is a flow chart of an embodiment of a method for transmitting information based on visible light according to the present invention
  • FIG. 2 is a schematic structural view of an embodiment of a visible light-based information transmission system of the present invention.
  • Label Name Label Name 10 App terminal 14 Processing module 11 Image acquisition module 30 Intelligent hardware 12 Photoelectric conversion module 31 Information conversion device 13 Judgment module 32 Light module
  • the invention proposes a light transmission based information transmission method.
  • FIG. 1 is a flowchart of an embodiment of a method for transmitting information based on visible light according to the present invention.
  • the visible light-based information transmission method includes the following steps:
  • the visible light-based information transmission method of the present embodiment mainly utilizes the visible light visible in real life as a medium for information transmission, compared to the conventional forms of wireless information transmission methods such as WiFi, Bluetooth, mobile communication, and Zigbee.
  • the invention solves the problem of high cost caused by the traditional wireless information transmission mode depending on the specific communication module, and also solves the problem that the intelligent device must be able to conduct information transmission through the above wireless communication mode, thereby causing different wireless communication modes between different smart devices. The problem of information interaction is not possible.
  • the optical signal transmitted by the intelligent hardware is mainly used to transmit information that needs to be transmitted.
  • the intelligent hardware transmitting optical signal may be transmitted every preset time according to a set program and timing, or the preset condition is met.
  • the intelligent hardware can also continuously emit an optical signal according to a setting program for 24 hours, and convert the light signal to the flash after the App terminal acquires the optical signal emitted by the intelligent hardware.
  • the information is also converted into an optical signal that is continuously flashed by the intelligent hardware, and is converted into flash information including a field header, an information content, and a field tail.
  • the flash information is digital information, and the field header and information are determined after the converted flash information is obtained.
  • the flash information of the content and the end of the field satisfies the first preset condition.
  • the first preset condition it is determined that the flash information includes data information that the user of the App terminal needs to obtain, and the flash information is started at this time.
  • Storage in the process of storing, that is, in the process of information transmission, if the flash information is detected to be satisfied
  • the second preset condition is generally a cut-off flag of information conduction, and when detecting that the flash information meets the cut-off flag during information transmission, stopping the The storage of the flash information ends, and the information transmission process ends.
  • the preset app of the App terminal uses a specific algorithm to identify, judge, and interpret the stored flash information.
  • the preset app of the App terminal generally includes multiple interpretation formats, such as semaphores. , the fan language, the Moss code, etc., the preset App recognizes and judges the stored flash information, and interprets it as text information, digital information, voice information, etc. that the user of the App terminal can directly obtain.
  • interpretation formats such as semaphores. , the fan language, the Moss code, etc.
  • the visible light-based information transmission method of the embodiment converts the light signal emitted by the intelligent hardware into flash information, and stores the flash information when the flash information meets the preset condition, and finally uses the specific algorithm to identify the stored flash information. , judgment and interpretation, get the information that the intelligent hardware needs to transmit through the optical signal, do not need to install a specific communication module on the intelligent hardware, save the cost of wireless information transmission, and reduce the information between the smart devices without the specific communication module installed. Interaction restrictions increase interactivity between smart devices.
  • the method further includes the steps of:
  • the intelligent hardware converts the automatically acquired information or the information to be transmitted written by the configuration into an optical signal.
  • the intelligent hardware transmits the information that needs to be transmitted through the optical signal.
  • the intelligent hardware can automatically acquire certain information data, and convert the automatically acquired information data.
  • the specific form of the optical signal is transmitted, and the information to be transmitted that needs to be transmitted is configured to be written into the intelligent hardware by another device, and then the information to be transmitted is converted into a specific by the lighting module and the information conversion device of the intelligent hardware.
  • the form of the optical signal is emitted. Taking a single light source as an example, the start information is flashed 10 times at a frequency of 20 Hz, with an interval of 0.5 s, and the frequency is flashed 10 times at a frequency of 40 hz, and is repeated three times periodically.
  • the intelligent hardware may be an information conversion device and a light emitting module that only convert the information to be transmitted into a specific form of optical signals, and may further include an information collecting module that automatically acquires different data information, such as a temperature sensor, a humidity sensor, and a blood pressure. Sensors, accelerometers, gravity sensors, and other functional sensors that collect user motion indicators, health indicators, and environmental indicators. Intelligent hardware can be designed as a smart device that realizes more functions depending on the size and function strength, but each intelligent hardware must include the most basic information conversion device and light-emitting module for information transmission, and connect the information conversion.
  • the light-emitting circuit of the device and the light-emitting module when the information needs to be transmitted, the information to be transmitted by the information conversion device is converted into a light-emitting command by a specific algorithm and sent to the light-emitting circuit, and the light-emitting circuit drives the light source, that is, the light-emitting module, according to the light-emitting command
  • the information is expressed in two states: light and non-bright.
  • the light and dark changes of the light source over a period of time constitute an information body, and the light source module may be a single-color single light source, a multi-color light source, or multiple light sources arranged linearly or in an array.
  • the degree of personality of the transmitted information is also different, which can increase the identification and accuracy of information transmission.
  • the step of starting to store the optical signal includes:
  • the processing speed of the App terminal is improved, and the garbage is reduced.
  • the information occupies the memory of the App terminal.
  • a flash information is preset as the start information.
  • the flash signal of the characteristic light source is converted into the flash information of the photoelectric conversion data and compared with the preset start information, that is, whether the coincidence rate of the field header and the start information in the flash information reaches a preset threshold, when the field is When the head and the start information reach the preset coincidence rate, it is determined that the information content after the field header in the flash information is valid information, taking a single light source as an example, the start information is blinking 10 times at a frequency of 20 Hz, the interval is 0.5 s, and the frequency is blinked at 40 hz. 10 times, repeated three times periodically, when the image acquisition module 11 detects the above 20 Hz or 40 Hz light source, it is on Performing information collection and comparison.
  • the information is deemed to be valid, and the information content is started to be stored; if the coincidence rate of the field header and the start information does not reach the preset threshold, then the determination is made.
  • the information content after the field header in the flash information is invalid information.
  • the optical signal transmitted by the intelligent hardware is a non-correlated signal, which does not match the optical signal for conducting information, and there is no need to process the optical signal. , reducing the amount of calculation of the App terminal, and improving the processing speed of the App terminal.
  • the step of stopping the storing of the flash information when the flash information meets the second preset condition comprises:
  • the processing speed of the App terminal is improved, and the garbage information is reduced.
  • the memory of the terminal when the App terminal collects and stores the optical signal transmitted by the intelligent hardware, preset another piece of flash information as the stop information.
  • the field end is When the image acquisition module of the App terminal collects the matched optical signal, the field end is When the stop information reaches the preset coincidence rate, it is determined that the information content in the flash information is complete information to be transmitted, and if the information is not illuminated for 1 s, and the same frequency is blinked for more than 1 s for 60 Hz, the storage of the information content is stopped, and the stop is stopped.
  • the optical signal is a non-correlated signal, which does not match the optical signal for information transmission, so there is no need to Flash information after converting the optical signal is stored, if the information after the information is determined to be valid tail field continues to store the information efficiently, reducing the amount of computation App terminal, to improve the processing speed of the terminal App.
  • An embodiment of the present invention provides a method for transmitting information based on visible light.
  • a smart shoe with an LED light information transmitting function is provided, and the smart shoe can automatically acquire the number of steps, the foot pressure, the amount of exercise, The wearer's weight and other data, when it is necessary to obtain the sports data or health data automatically collected by the smart shoe, the flashing frequency and the flashing time of the smart shoe may be set by the MCU inside the smart shoe, and the flash mode of the smart shoe may also be defined. That is, it can be set as timing flashing: the data collected by the sensor set on the smart shoe is transmitted to the MCU in real time, the MCU stores the data, and controls the LED light array to start flashing at a certain set time.
  • the smart shoes At the next moment, or control the LED light to flash in real time according to the collected motion data, and at the same time set the start and stop signs of the flashing, that is, the field header and the field tail in the flash information, during the flashing, the smart shoes
  • the wearer can take the light signal emitted by the smart shoe through the smart phone, then convert it into flash information, and the flash information is full.
  • the flash information is stored in a preset condition.
  • the stored information is identified, judged, and interpreted by a specific application installed in the mobile phone, and the motion and health data information transmitted by the smart shoe through the optical signal is obtained.
  • the installation of a specific communication module on the smart shoe saves the cost of wireless information transmission, reduces the information interaction restriction between the smart devices without a specific communication module, and improves the interactivity between the smart devices.
  • the invention further proposes an information transmission system based on visible light.
  • FIG. 2 is a schematic structural diagram of an embodiment of a visible light-based information transmission system according to the present invention.
  • the information transmission system includes an App terminal 10 and an intelligent hardware 30 that emits an optical signal, wherein the App terminal 10 includes:
  • the image acquisition module 11 acquires an optical signal emitted by the intelligent hardware
  • the photoelectric conversion module 12 converts the optical signal into flash information
  • the determining module 13 starts to store the flash information when the flash information meets the first preset condition, and stops storing the flash information when the flash information meets the second preset condition;
  • the processing module 14 identifies, determines, and interprets the stored flash information.
  • the visible light-based information transmission system of the present embodiment mainly utilizes the visible light visible in real life as a medium for information transmission, compared to the conventional forms of wireless information transmission methods such as WiFi, Bluetooth, mobile communication, and Zigbee.
  • the invention solves the problem of high cost caused by the traditional wireless information transmission mode depending on the specific communication module, and also solves the problem that the intelligent device must be able to conduct information transmission through the above wireless communication mode, thereby causing different wireless communication modes between different smart devices. The problem of information interaction is not possible.
  • the optical signal transmitted by the smart hardware 30 is mainly used to transmit information that needs to be transmitted.
  • the intelligent hardware 30 emits an optical signal that can be transmitted every preset time according to a set program and timing, or is satisfied in advance.
  • the intelligent hardware can also continuously transmit the optical signal according to the setting program for 24 hours, and acquire the smart hardware transmission in the image acquisition module 11 of the App terminal 10.
  • the optical signal is then converted into flash information by the photoelectric conversion module 12, that is, the optical signal continuously emitted by the smart hardware 30 is converted into flash information including a field header, information content, and a field tail, the flash information being digital information.
  • the image terminal may be a smart phone, an ipad, or a mobile PC.
  • the image capturing module 11 may be a camera or a graphic sensor disposed on the App terminal.
  • the determining module 13 determines that the field header is included. Whether the information content and the flash information at the end of the field satisfy the first preset condition, and satisfy the first preset bar Determining that the flash information includes data information that the user of the App terminal needs to obtain, and at this time, the flash information is stored, and in the process of storing, that is, during information transmission, if the flash information is detected to satisfy the second preset In the condition, the storage of the flash information is stopped, and the second preset condition is generally a cut-off flag of information conduction.
  • the processing module 14 of the App terminal uses a specific algorithm to identify, determine, and interpret the stored flash information.
  • the processing module 14 of the App terminal generally includes multiple interpretation formats, such as semaphores and fans.
  • the Moss code and the like the processing module 14 recognizes and judges the stored flash information as text information, digital information, voice information, and the like that can be directly acquired by the App terminal user.
  • the visible light-based information transmission system of the embodiment converts the optical signal emitted by the intelligent hardware into flash information through the photoelectric conversion module, and stores the flash information when the flash information meets the preset condition, and finally uses a specific algorithm to store the flash
  • the information is identified, judged and interpreted, and the information transmitted by the intelligent hardware through the optical signal is obtained. It is not necessary to install a specific communication module on the intelligent hardware, which saves the cost of wireless information transmission and reduces the smart device that does not have a specific communication module installed.
  • the restriction of information interaction between the two devices improves the interactivity between smart devices.
  • the smart hardware 30 includes:
  • the information conversion device 31 converts the automatically acquired information or the information to be transmitted that is configured to be converted into a lighting command
  • the light emitting module 32 drives the light source to emit an optical signal according to the lighting command.
  • the smart hardware 30 transmits the information that needs to be transmitted through the optical signal.
  • the smart hardware 30 can automatically acquire certain information data and automatically acquire the information.
  • the information data is converted into a specific form of optical signal for transmission, and the information to be transmitted that needs to be transmitted is also configured to be written into the smart hardware 30 by another device, and then passed through the illumination module 32 and the information conversion conversion device 31 of the smart hardware 30.
  • the information to be transmitted is converted into a specific form of optical signal for transmission.
  • the start information is flashed 10 times at a frequency of 20 Hz, with an interval of 0.5 s, and the frequency is flashed 10 times at a frequency of 40 hz, and is repeated three times periodically.
  • the smart hardware 30 may be an information conversion device 31 and a light emitting module 32 that only convert the information to be transmitted into a specific form of optical signals, and may also include an information collecting module that automatically acquires different data information, such as a temperature sensor and a humidity. Sensors, blood pressure sensors, accelerometers, gravity sensors, and other functional sensors that collect user motion indicators, health indicators, and environmental indicators.
  • the smart hardware 30 can be designed as a smart device that realizes more functions according to the size and the functional strength, but each intelligent hardware must include the most basic information conversion device 31 and the light emitting module 32 for information transmission, and the connection station.
  • the information conversion device 31 and the light-emitting circuit of the light-emitting module 32 when the information needs to be transmitted, the information to be transmitted by the information conversion device 31 is converted into a light-emitting command by a specific algorithm and sent to the light-emitting circuit, and the light-emitting circuit drives the light source, that is, the light-emitting module.
  • the light source module may be a monochromatic single light source, a multi-color light source or linearly arranged or The multiple light sources arranged in the array form, according to the number of light sources, the degree of personality of the transmitted information is also different, which can increase the identification and accuracy of information transmission.
  • the determining module 30 is configured to:
  • the App terminal 10 in order to facilitate the App terminal 10 to obtain corresponding to-be-transmitted information from the optical signal transmitted by the smart hardware 30 more quickly and efficiently, and to further reduce the amount of calculation of the App terminal 10, the arithmetic processing of the App terminal 10 is improved. The speed, the garbage information is reduced in the memory of the App terminal 10.
  • a piece of flash information is preset as the start information, and when the image acquisition module 11 of the App terminal 10 detects that there is When the light source of the characteristic light source is approximated, the flash information of the optical signal having the approximate characteristic light source converted into the photoelectric conversion data is compared with the preset start information, that is, whether the coincidence rate of the field header and the start information in the flash information is determined whether When the preset threshold is reached, when the field header and the start information reach the preset coincidence rate, it is determined that the information content after the field header in the flash information is valid information, and the single light source is taken as an example, and the start information is blinking at a frequency of 20 Hz.
  • Times, interval 0.5s, 40hz frequency is flashed 10 times, periodically repeated three times, when the image acquisition module 11 detects the above 20Hz or 40Hz
  • the information collection and comparison are started. If two complete cycles are collected, the information is deemed to be valid, and the information content is started to be stored; if the coincidence rate of the field header and the start information does not reach The preset threshold value determines that the information content after the field header in the flash information is invalid information.
  • the optical signal transmitted by the smart hardware 30 is a non-correlated signal, and the optical signal for performing information transmission does not match, and there is no need to The optical signal is processed, the amount of calculation of the App terminal 10 is reduced, and the arithmetic processing speed of the App terminal 10 is increased.
  • the determining module 30 is further configured to:
  • the application terminal 10 can further reduce the calculation amount of the App terminal 10, improve the processing speed of the App terminal 10, and reduce the garbage information.
  • the memory of the App terminal 10 presets another piece of flash information as the stop information.
  • the image acquisition module 11 of the App terminal 10 collects the matched optical signal
  • the end of the field and the stop information reach the preset coincidence rate
  • the The information content is stored; if the coincidence rate of the field header and the start information does not reach the preset threshold, it is determined whether the information after the field tail in the flash information is invalid information, and if so, the optical signal transmitted by the smart hardware at this time
  • the uncorrelated signal it does not match the optical signal for information transmission, and there is no need to flash the converted optical signal.
  • Information is stored, if the information after the information is determined to be valid tail field continues to store the information efficiently, reducing the amount of computation App terminal, to improve the processing speed of the terminal App.

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

Abstract

L'invention concerne un procédé et un système de transmission d'informations basés sur la lumière visible. Le procédé comporte les étapes consistant à: commuter un signal optique émis par un matériel intelligent en informations de clignotement; stocker les informations de clignotement lorsque les informations de clignotement satisfont des préconditions; et en dernier lieu, réaliser une identification, un jugement et une interprétation sur les informations de clignotement stockées pour obtenir des informations transférées par le matériel intelligent au moyen du signal optique. Sur la base du procédé et du système de l'invention, l'installation d'un module de communication spécifique sur le matériel intelligent n'est pas nécessaire, d'où une économie sur le coût de la transmission d'informations sans fil, une réduction des restrictions sur l'interaction informationnelle entre des dispositifs intelligents dépourvus de module de communication spécifique, et une amélioration de l'interaction entre les dispositifs intelligents.
PCT/CN2017/093014 2017-03-23 2017-07-14 Procédé et système de transmission d'informations basés sur la lumière visible Ceased WO2018171091A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710181649.1A CN107094048A (zh) 2017-03-23 2017-03-23 基于可见光的信息传导方法、传导系统
CN201710181649.1 2017-03-23

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EP3902158B1 (fr) 2019-05-14 2023-01-25 Wenjing Wu Procédé de réseau optique, dispositif de communication optique et système de réseau optique
CN110557197A (zh) * 2019-08-26 2019-12-10 深圳来电科技有限公司 信号识别方法、充电模组、移动电源、设备及存储介质
CN112738325B (zh) * 2020-12-25 2021-11-23 浙江工业大学 一种基于Android手机的智能LED识别方法

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CN201051745Y (zh) * 2006-07-28 2008-04-23 康佳集团股份有限公司 手机信息发送装置、接收装置以及手机通信系统
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