WO2013174309A1 - 可见光通信系统 - Google Patents

可见光通信系统 Download PDF

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Publication number
WO2013174309A1
WO2013174309A1 PCT/CN2013/079462 CN2013079462W WO2013174309A1 WO 2013174309 A1 WO2013174309 A1 WO 2013174309A1 CN 2013079462 W CN2013079462 W CN 2013079462W WO 2013174309 A1 WO2013174309 A1 WO 2013174309A1
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WO
WIPO (PCT)
Prior art keywords
visible light
communication
function device
signal
communication system
Prior art date
Application number
PCT/CN2013/079462
Other languages
English (en)
French (fr)
Inventor
郭阳
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/429,113 priority Critical patent/US9673902B2/en
Priority to EP13793898.1A priority patent/EP2899903A4/en
Publication of WO2013174309A1 publication Critical patent/WO2013174309A1/zh

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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

Definitions

  • the present invention relates to the field of communications, and in particular to a visible light communication system.
  • BACKGROUND OF THE INVENTION Wireless communication technologies using visible light have been widely received in the academic and industrial fields in recent years, especially in the widespread use of illumination devices for light-emitting elements such as Light Emitting Diodes (LEDs).
  • LEDs Light Emitting Diodes
  • the feasibility of implementing wireless communication network coverage while LEDs are being implemented is being carried out in many related companies. It can be seen that the communication method of optical communication combined with wireless sensor network, Wireless Local Area Network (WLAN), and power line communication system is also under discussion. However, it can be determined that visible light communication technology will be one of the options for short-range ultra-wideband communication in the future.
  • LED As a light-emitting component for high-speed optical data communication, LED is the most powerful candidate considering the influence on the human body or medical device.
  • semiconductor light-emitting devices with higher-speed response performance such as: Laser Diode (LD) or Superluminescent Diode (SLD) can also be used as visible light communication devices for transmitting. Visible light carrying data information.
  • the data rate in optical communication depends on the response speed of the luminaire. For this reason, such illuminating devices with higher speed response performance have received extensive attention.
  • the basic principle for realizing visible light LED communication is to modulate the illumination by the data to be transmitted, such as pulse width modulation, pulse position/frequency modulation or pulse amplitude modulation.
  • the modulated optical energy is transmitted through the spatial channel and received by the photodetector (or sensor) on the target device, and the photodetector converts the optical signal into an electrical signal and then demodulates the optical signal through subsequent processing. Carrying data.
  • the photodetector or sensor
  • the photodetector converts the optical signal into an electrical signal and then demodulates the optical signal through subsequent processing. Carrying data.
  • various portable/mobile terminals as receiving systems will be a simple communication method.
  • the topology networking transmission method between the visible light communication nodes will further affect the technical development of the visible light communication system.
  • the visible light communication technology has many advantages as described above, the topology networking mode between the communication nodes in the visible light communication system has not been proposed yet, so that the visible light resources are difficult to be effectively utilized.
  • Embodiments of the present invention provide a visible light communication system to solve at least the technical problem that the visible light resources are not fully utilized due to the network structure that has not been used for visible light communication in the prior art.
  • a visible light communication system includes: at least one of a full-function device and a visible light communication light source, and a reduced function device, wherein the visible light communication light source is set to be in a visible light signal Carrying the data information and transmitting the visible light signal; the reduced function device communicating with the full function device and/or the visible light communication light source, configured to receive the visible light signal and demodulate the received visible light signal to recover the above Data information;
  • the above-mentioned full-function device is configured to realize at least one of the following functions: a function of the visible light communication light source, a function of the reduced function device, and a forwarding function for forwarding the received visible light signal.
  • the visible light communication light source transmits the visible light signal carrying the data information by means of broadcasting.
  • the visible light communication system further includes a broadcast signal source connected to the visible light communication light source, and configured to send the signal to be broadcast as the data information to the visible light communication light source.
  • the reduced function device is further provided with a transmitting device configured to carry data information in the visible light signal and transmit the visible light signal.
  • the reduced function device receives at most one optical signal sent by the above visible light communication light source or receives at most one visible light signal sent by the above full function device.
  • the above-mentioned full-function device is further configured to receive the visible light signal carrying the data information sent by the full-function device other than itself, and forward the received visible light signal to one or more of the above-mentioned reduced function devices.
  • the visible light communication light source is a traffic light.
  • the above-mentioned reduced function device is a device with a camera function.
  • the visible light signal carrying the data information is a light and dark flashing signal emitted by the fluorescent lamp and/or the light emitting diode.
  • a visible light communication system which may include a full-function device, a reduced function device, or a visible light communication light source, etc., so that different architecture communication systems can be formed according to requirements to meet different communication. demand.
  • the prior art has not been used for visible light communication.
  • the technical problem that the visible light resources are not fully utilized due to the network structure achieves the technical effect of improving the visible light utilization rate.
  • BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate, FIG. The improper definition of the example.
  • FIG. 1 is a schematic diagram of a preferred configuration of a visible light communication system according to an embodiment of the present invention
  • FIG. 2 is a preferred schematic diagram of a top view of a visible light communication system according to an embodiment of the present invention
  • FIG. 4 is a block diagram of a preferred structure of a full function device in accordance with an embodiment of the present invention.
  • the communication system includes: at least one of a full-function device 102 and a visible light communication light source 104, and a reduced function device 106.
  • the visible light communication light source 104 is configured to carry data information in the visible light signal and transmit the visible light signal
  • the reduced function device 106 communicates with the full function device and/or with the visible light communication light source, and is configured to receive the visible light signal and receive the visible light signal. Demodulation is performed to recover the data information
  • the full-function device 102 is configured to implement at least one of the following functions: a function of the visible light communication light source, a function of the reduced function device, and a forwarding function for forwarding the received visible light signal.
  • a visible light communication system which may include a full-function device, a reduced function device, or a visible light communication light source, etc., so that different architecture communication systems can be formed according to requirements to meet different communication. demand.
  • the visible light signal carrying the data information is a high speed light and dark flicker signal that is invisible to the naked eye through the fluorescent lamp and/or the light emitting diode.
  • the relatively common light-emitting device such as the signal light can be selected to carry the data information to play the role of broadcasting, that is, the visible light communication light source can be broadcasted.
  • the method transmits the visible light signal carrying the data information.
  • the visible light communication light source is used for broadcasting signals, it is naturally required to have a broadcast signal source connected thereto, that is, the above-mentioned visible light communication system further includes a broadcast signal source connected to the visible light communication light source. It is arranged to transmit the signal to be broadcast as the above data information to the visible light communication light source.
  • a transmitting device may be provided, which is configured to carry data information in the visible light signal and transmit the visible light signal. . That is, the reduced function device can not only receive visible light signals, but also transmit visible light signals, thereby achieving more comprehensive information interaction and a more comprehensive communication process. Since the reduced function device is more commonly used as a single node in the communication system, the reduced function device receives only the optical signal transmitted by at most one of the above visible light communication sources or receives the visible light transmitted by at most one of the above full-function devices at the same time. signal.
  • the full-featured device mentioned above has a function of receiving and transmitting in addition to the function of receiving and transmitting. Specifically, the above-mentioned full-function device receives the above-mentioned carried data information by receiving a full-function device other than itself. After the visible light signal, the received visible light signal can be forwarded to one or more of the above-described reduced function devices.
  • the full-function device may also forward the received visible light signal sent by a certain reduced function device to another reduced function device, or send the received visible light source. The visible light signal is forwarded to other full-featured devices or to a streamlined functional device that communicates with it.
  • the traffic indicator light is a relatively common light-emitting device. Therefore, in a preferred embodiment, in order to effectively utilize the traffic light on the road, the traffic light can be used as a visible light communication light source for the purpose of broadcasting.
  • the reduced function device may be a device with a camera function.
  • mobile phones, cameras, laptops, etc. can be used as a streamlined device.
  • the visible light communication can be implemented in the following manner: The user performs a transmission control protocol (Transmission Control Protocol) with the central processing unit by means of a handheld control terminal or a remote computer login.
  • Transmission Control Protocol Transmission Control Protocol
  • the encoded stream preferably, can drive a plurality of transmit modulators simultaneously; the transmit modulator converts to a switched state that modulates the intensity of the LED light according to the binary encoded stream, thereby forming a sequence of light intensity variations in the time domain.
  • the controlled user equipment will be implanted into the receiver demodulator after being modified and modified accordingly.
  • the demodulator detects the light and dark changes of the light intensity such as LEDs, converts the optical signal into an electrical signal, and demodulates the device.
  • the processing unit will generate corresponding control actions based on the received information.
  • the first is a network topology for short-range wireless communication.
  • Each terminal device plays the role of a different network node in the network.
  • the network topology mainly includes full-featured devices and streamlining.
  • a functional device in which a Full Flctional Device (FFD) can be used as a coordinator or as a simple node; a full-featured device can be configured into any topology and can be used with any The device communicates.
  • FDD Full Flctional Device
  • RDD Reduced Functional Device
  • RDD Reduced Functional Device
  • a thin device can only communicate with a full-featured device and can only communicate with one full-featured device at a time.
  • BP in this first topology, a full-featured device can be used either as a network coordinator or as a single node, and can communicate with any node of any topology; a reduced-function device can only be used as a single node. It can only communicate with the network coordinator, not with a single node.
  • the transmitting function is provided by a visible light transmitting device
  • the receiving function is provided by a visible light receiving device, such as a camera.
  • Full-featured devices require a visible light transmitting and receiving device, and a network function as a coordinator, while a reduced-function device requires only a transmitting and receiving device with visible light, and even a portion of the reduced-function device can be equipped with only a receiving device.
  • the embodiment of the present invention further provides another network topology, which can be applied to the scenario of the broadcast application.
  • the network topology includes: visible light Communication light source, full-featured device, and reduced function device, wherein The visible light communication light source is connected to the broadcast signal source and is configured to broadcast the signal of the broadcast system, and only has the transmitting device, and does not need to have the functions of the receiving device and the network coordinator.
  • a full-featured device that can be used as a coordinator or as a single node. It can be configured into any topology, that is, it can be located anywhere in the topology and can communicate with all devices in the system.
  • the reduced-function device can only be used as a single node, that is, it is only responsible for receiving or transmitting visible light signals carrying data information. However, it does not have the function of forwarding.
  • a network coordinator ie, a full-featured device
  • visible light communication system many application scenarios have similar broadcast applications, for example: visible light communication technology can be applied to the traffic management system, and the traffic light can also broadcast the road condition information and the like while performing traffic indication. Transmission, for these broadcast light sources (i.e., visible light communication light sources), only the transmitting device may be provided, and the functional devices of the receiving device and the network coordinator are not required.
  • For full-featured devices i.e., visible light communication light sources
  • the entire network is provided with a full-featured device, or in a small communication network, only Set up a full-featured device and a visible light communication light source, or only a visible light communication light source and a reduced function device, and the like.
  • a storage medium is provided, the software being stored, including but not limited to: an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like. It can be seen from the above description that the embodiment of the present invention achieves the following technical effects: A visible light communication system is provided, in which a full-function device, a reduced function device, or a visible light communication light source can be included, thereby Communication systems of different architectures are formed according to requirements to meet different communication needs.
  • the technical problem that the visible light resources are not fully utilized due to the network structure that has not been used for visible light communication in the prior art is solved, and the technical effect of improving the visible light utilization rate is achieved.
  • the above modules or steps of the embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in multiple computing devices.
  • they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from
  • the steps shown or described are performed sequentially, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module.

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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)

Abstract

本发明实施例公开了一种可见光通信系统，该通信系统包括：全功能设备和可见光通信光源中的至少之一，以及精简功能设备，其中，可见光通信光源，设置为在可见光信号中携带数据信息，并发送可见光信号；精简功能设备，与全功能设备通信和/或与可见光通信光源通信，设置为接收可见光信号并对接收到可见光信号进行解调以恢复出数据信息；全功能设备设置为实现以下功能至少之一：可见光通信光源的功能、精简功能设备的功能以及对接收到的可见光信号进行转发的转发功能。本发明实施例解决了现有技术中还没有用于可见光通信的网络结构而导致的可见光资源得不到充分利用的技术问题，达到了提高可见光的利用率的技术效果。

Description

可见光通信系统 技术领域 本发明实施例涉及通信领域， 具体而言， 涉及一种可见光通信系统。 背景技术 使用可见光的无线通信技术近年来逐渐受到学术界和产业界的广泛关注， 尤其是 随着发光二极管 （Light Emitting Diode, 简称为 LED) 之类的发光元件的照明设备的 广泛使用， 利用半导体 LED在实现照明的同时， 实现无线通信网络覆盖的可行性研究 正在许多相关企业中进行。可见，光通信与无线传感网络、无线局域网（Wireless Local Area Network,简称为 WLAN)、以及电力线通信系统相结合的通信方式也在探讨当中。 然而， 可以确定的是可见光通信技术将是未来可选的短距超宽带通信方式之一。 作为用于高速光数据通信的发光部件， 考虑到对人体或医疗器械的影响， LED是 最强有力的候选。 同时， 具有更高速度的响应性能的半导体发光设备， 例如： 激光二 极管 （Laser Diode, 简称为 LD) 或超辐射发光二极管 （ Superluminescent Diode,简称 为 SLD) 也可以用作可见光通信设备， 用于发送携带有数据信息的可见光。 在光通信 中的数据速率取决于发光设备的响应速度。 由于此原因， 这种具有更高速度的响应性 能的发光设备受到了广泛关注。 实现可见光 LED通信的基本原理是通过待发送的数据对所发光进行某种调制，比 如脉冲宽度调制、 脉冲位置 /频率调制或者脉冲幅度调制。 这种调制的光能量通过空间 信道进行传输并被目标装置上的光电探测器 （或者是传感器） 接收到， 光电探测器将 光信号转换为电信号后经过后续处理再解调出该光信号中携带的数据。 根据未来可见光的应用场景以及其特有的特点， 配备了摄像头的便携设备也将越 来越多。 利用各种 LED作为信息发布系统， 各种便携 /移动终端作为接收系统， 将是 一种简洁的通信方式。 可见光通信节点之间的拓扑组网传输方法将更深入的影响可见 光通信系统的技术发展。 虽然可见光通信技术有上述的诸多优点， 然而目前还未提出 针对可见光通信系统中各个通信节点之间的拓扑组网方式， 从而使得可见光资源难以 得到有效地利用。 针对上述的问题， 目前尚未提出有效的解决方案。 发明内容 本发明实施例提供了一种可见光通信系统， 以至少解决现有技术中还没有用于可 见光通信的网络结构而导致的可见光资源得不到充分利用的技术问题。 根据本发明实施例的一个方面， 提供了一种可见光通信系统， 包括： 全功能设备 和可见光通信光源中的至少之一， 以及精简功能设备， 其中， 上述可见光通信光源， 设置为在可见光信号中携带数据信息， 并发送上述可见光信号； 上述精简功能设备， 与上述全功能设备通信和 /或与可见光通信光源通信， 设置为接收上述可见光信号并对 接收到上述可见光信号进行解调以恢复出上述数据信息； 上述全功能设备， 设置为实 现以下功能至少之一： 上述可见光通信光源的功能、 上述精简功能设备的功能以及对 接收到的可见光信号进行转发的转发功能。 优选地， 上述可见光通信光源通过广播的方式发送上述携带有数据信息的可见光 信号。 优选地， 上述可见光通信系统还包括与上述可见光通信光源相连的广播信号源， 设置为将待广播的信号作为上述数据信息发送给上述可见光通信光源。 优选地， 上述精简功能设备中还设置有发送装置， 设置为在可见光信号中携带数 据信息， 并发送上述可见光信号。 优选地， 在同一时间内上述精简功能设备接收最多一个上述可见光通信光源发送 的光信号或者接收最多一个上述全功能设备发送的可见光信号。 优选地， 上述全功能设备还设置为接收除自身之外的全功能设备发送的上述携带 有数据信息的可见光信号， 并将接收到的可见光信号转发给一个或多个上述精简功能 设备。 优选地， 上述可见光通信光源是交通指示灯。 优选地， 上述精简功能设备是带有摄像功能的设备。 优选地， 上述携带有数据信息的可见光信号是通过荧光灯和 /或发光二极管发出的 明暗闪烁信号。 在本发明实施例中， 提供了一种可见光通信系统， 在该系统里可以包括全功能设 备、 精简功能设备或者是可见光通信光源等， 从而可以根据需求组成不同架构的通信 系统以满足不同的通信需求。 通过上述方式解决了现有技术中还没有用于可见光通信 的网络结构而导致的可见光资源得不到充分利用的技术问题， 达到了提高可见光利用 率的技术效果。 附图说明 此处所说明的附图用来提供对本发明实施例的进一步理解，构成本申请的一部分， 本发明的示意性实施例及其说明用于解释本发明实施例， 并不构成对本发明实施例的 不当限定。 在附图中： 图 1是根据本发明实施例的可见光通信系统的一种优选结构示意图； 图 2是根据本发明实施例的可见光通信系统拓扑图的一种优选示意图； 图 3是根据本发明实施例的可见光通信系统拓扑图的一种优选示意图； 图 4是根据本发明实施例的全功能设备的一种优选结构框图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明实施例。 需要说明的是， 在不 冲突的情况下， 本申请中的实施例及实施例中的特征可以相互组合。 本发明实施例提供了一种优选的可见光通信系统， 如图 1所示， 该通信系统包括: 全功能设备 102和可见光通信光源 104中的至少之一， 以及精简功能设备 106， 下面 对上述几个设备进行详细说明。 可见光通信光源 104， 设置为在可见光信号中携带数据信息， 并发送可见光信号； 精简功能设备 106， 与全功能设备通信和 /或与可见光通信光源通信， 设置为接收 可见光信号并对接收到可见光信号进行解调以恢复出数据信息； 全功能设备 102， 设置为实现以下功能至少之一： 可见光通信光源的功能、 精简 功能设备的功能以及对接收到的可见光信号进行转发的转发功能。 在上述优选实施方式中， 提供了一种可见光通信系统， 在该系统里可以包括全功 能设备、 精简功能设备或者是可见光通信光源等， 从而可以根据需求组成不同架构的 通信系统以满足不同的通信需求。 通过上述方式解决了现有技术中还没有用于可见光 通信的网络结构而导致的可见光资源得不到充分利用的技术问题， 达到了提高可见光 利用率的技术效果。 优选的， 携带有数据信息的可见光信号是通过荧光灯和 /或发光二极管发出的肉眼 看不到的高速明暗闪烁信号。 考虑到信号灯等发送光源在网络拓扑中的特殊性， 对于可见光通信光源就可以选 择这些信号灯等较为常见的发光设备携带数据信息， 以起到广播的作用， 即上述的可 见光通信光源可以通过广播的方式发送上述携带有数据信息的可见光信号。 在一个优选实施方式中， 既然可见光通信光源是用于广播信号， 自然就需要有一 个与其相连的广播信号源， 即在上述的可见光通信系统中还包括与该可见光通信光源 相连的广播信号源， 设置为将待广播的信号作为上述数据信息发送给上述可见光通信 光源。 如果不考虑设备的精简性， 而是更为注重设备功能上的完善性， 对于系统中的精 简功能设备中也可以设置有发送装置， 设置为在可见光信号中携带数据信息， 并发送 该可见光信号。 即， 精简功能设备不仅可以接收可见光信号， 还可以发送可见光信号， 从而实现更为全面的信息交互， 和更为全面的通信流程。 因为精简功能设备在通信系统中更多的还是作为单节点使用的， 因此在同一时间 内该精简功能设备仅接收最多一个上述可见光通信光源发送的光信号或者接收最多一 个上述全功能设备发送的可见光信号。 对于上文中提到的全功能设备除了具备接收和发送的功能之外还具备转发的功 能， 具体的， 上述的全功能设备在接收到除自身之外的全功能设备发送的上述携带有 数据信息的可见光信号后， 可以将接收到的可见光信号转发给一个或多个上述精简功 能设备。 上述仅是一个优选的实施方式， 本发明不限于此， 全功能设备也可以将接收 到的某个精简功能设备发送的可见光信号转发给另外一个精简功能设备， 或者是将接 收到的可见光光源发送的可见光信号转发给其他的全功能设备或者是与其进行通信的 精简功能设备等。 交通指示灯是较为常见的发光设备， 因此， 在一个优选实施方式中， 为了有效利 用马路上的交通灯， 可以将交通指示灯作为可见光通信光源， 以实现广播的目的。 在上述各个优选实施方式中， 精简功能设备可以是带有摄像功能的设备。 例如， 手机、 相机、 笔记本电脑等都可以作为精简功能设备。 具体的， 可以按照以下方式实现可见光通信： 用户通过手持控制终端或远程计算 机登录的方式与中央处理器进行基于传输控制协议（Transmission Control Protocol, 简 称为 TCP) /因特网协议 （Internet Protocol, 简称为 IP) 的通信， 通信内容包括： 用户 希望对受控设备的操作指令等， 中央控制器通过对指令的解析， 产生相应的 LED灯调 制的二进制编码流， 优选地， 可以同时驱动多个发射调制器； 发射调制器根据二进制 编码流转换成调制 LED灯的光强的开关状态， 从而形成时域内的光强变化序列。在接 收方，受控的用户设备经过相应的改造升级，将被植入接收解调器，该解调器探测 LED 等光强的明暗变化， 将光信号转化为电信号， 解调设备的微处理单元将依据所接收的 信息产生相应的控制动作。 为了更好地说明本发明， 在实施例中还给出了以下两种优选的拓扑结构来进一步 说明。 1 )第一种是用于进行近距离无线通信的网络拓扑结构，每个终端设备在网络中扮 演不同的网络节点的角色， 如图 2所示， 该网络拓扑结构主要包括全功能设备和精简 功能设备， 其中， 全功能设备（Full flmctional Device,简称为 FFD)，既可以作为协调器（coordinator) 使用， 也可以作为简单节点使用； 同时全功能设备可以组成任意的拓扑结构， 并可以 与任何设备进行通信。 精简功能设备 （Reduced Functional Device, 简称为 RFD)， 仅可以作为单节点使 用， 即， 精简功能设备仅可以发送或者接收不具备转发的能力。 在该种仅有精简设备和全功能设备的网络拓扑中， 精简设备仅可以与全功能设备 进行通信， 且在同一时间仅可以与一个全功能设备进行通信。 BP , 在该第一种拓扑结构中， 全功能设备既可以作为网络协调器使用， 也可以作 为单节点使用， 可以与任意拓扑结构的任何节点进行通信； 精简功能设备只能作为单 节点使用， 只能与网络协调器进行通信， 而不能与单节点进行通信。 对于可见光通信而言， 发送功能是由可见光发送器件提供的， 接收功能是由可见 光接收器件提供的， 例如摄像头等。 全功能设备需要配备可见光发送和接收装置， 以 及作为协调器的网络功能， 而精简功能设备仅需要配备可见光的发送和接收装置， 甚 至一部分精简功能设备可以仅配备接收装置。
2)基于信号灯等发送光源在网络拓扑中的特殊性，本发明实施例还提供了另外一 种网络拓扑结构， 可以应用于广播应用的场景， 如图 3所示， 该网络拓扑结构包括： 可见光通信光源、 全功能设备以及精简功能设备， 其中， 可见光通信光源， 与广播信号源相连， 设置为对广播系统的信号进行广播， 仅具 备发送装置， 而不需要具备接收装置和网络协调器的功能。 全功能设备， 既可以作为协调器 （coordinator) 使用也可以作为单节点使用， 可 以组成任意的拓扑结构， 即可以位于拓扑结构的任意位置中， 可以与系统中的所有设 备进行通信。 精简功能设备， 仅可以作为单节点使用， 即仅负责接收或者发送携带有数据信息 的可见光信号， 然而不具备转发的功能， 在拓扑结构中仅可以组成星型拓扑， 在同一 时间内仅可以与 1个网络协调器 （即， 1个全功能设备） 进行通信或者是在同一时间 内仅可以接收一个可见光通信光源发送的可见光信号。 对于可见光通信系统来讲， 很多应用场景中都有类似于广播应用的场景， 例如： 可见光通信技术可以应用于交通管理系统， 信号灯在进行交通指示的同时， 还可以将 路况信息等等信息进行广播发送， 对于这些广播光源 （即， 可见光通信光源） 而言， 可以仅具备发送装置， 不需要接收装置和网络协调器的功能装置。 对于全功能设备
102，如图 4所示， 需要配置发送装置 402、接收装置 404以及协调器 406等所有功能， 其中， 这些配置发送装置 402、 接收装置 404以及协调器 406与该全功能设备之外的 其它全功能设备或者精简功能设备以及可见光通信光源进行通信， 从而进行信息的转 发。 然而， 值得注意的是， 上述的两种拓扑结构仅是本发明优选的实施方式， 还可以 采用其它的组合方式， 例如， 整个网络都设置全功能设备， 或者在一个小的通信网络 中可以仅设置全功能设备和可见光通信光源， 又或者仅设置有可见光通信光源和精简 功能设备等等。 在另外一个实施例中， 还提供了一种软件， 该软件用于执行上述实施例及优选实 施方式中描述的技术方案。 在另外一个实施例中， 还提供了一种存储介质， 该存储介质中存储有上述软件， 该存储介质包括但不限于： 光盘、 软盘、 硬盘、 可擦写存储器等。 从以上的描述中， 可以看出， 本发明实施例实现了如下技术效果： 提供了一种可 见光通信系统， 在该系统里可以包括全功能设备、 精简功能设备或者是可见光通信光 源等， 从而可以根据需求组成不同架构的通信系统以满足不同的通信需求。 通过上述 方式解决了现有技术中还没有用于可见光通信的网络结构而导致的可见光资源得不到 充分利用的技术问题， 达到了提高可见光利用率的技术效果。 显然， 本领域的技术人员应该明白， 上述的本发明实施例的各模块或各步骤可以 用通用的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布在多个计算 装置所组成的网络上， 可选地， 它们可以用计算装置可执行的程序代码来实现， 从而， 可以将它们存储在存储装置中由计算装置来执行， 并且在某些情况下， 可以以不同于 此处的顺序执行所示出或描述的步骤， 或者将它们分别制作成各个集成电路模块， 或 者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样， 本发明实施例 不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明实施例可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种可见光通信系统， 包括： 全功能设备和可见光通信光源中的至少之一， 以 及精简功能设备， 其中，
所述可见光通信光源， 设置为在可见光信号中携带数据信息， 并发送所述 可见光信号；
所述精简功能设备， 与所述全功能设备通信和 /或与可见光通信光源通信， 设置为接收所述可见光信号并对接收到所述可见光信号进行解调以恢复出所述 数据信息；
所述全功能设备设置为实现以下功能至少之一： 所述可见光通信光源的功 能、所述精简功能设备的功能以及对接收到的可见光信号进行转发的转发功能。
2. 根据权利要求 1所述的光通信系统， 其中， 所述可见光通信光源通过广播的方 式发送所述携带有数据信息的可见光信号。
3. 根据权利要求 2所述的光通信系统， 其中， 还包括与所述可见光通信光源相连 的广播信号源， 设置为将待广播的信号作为所述数据信息发送给所述可见光通 信光源。
4. 根据权利要求 1所述的光通信系统， 其中， 所述精简功能设备中还设置有发送 装置， 设置为在可见光信号中携带数据信息， 并发送所述可见光信号。
5. 根据权利要求 1所述的光通信系统， 其中， 在同一时间内所述精简功能设备接 收最多一个所述可见光通信光源发送的光信号或者接收最多一个所述全功能设 备发送的可见光信号。
6. 根据权利要求 1所述的光通信系统， 其中， 所述全功能设备还设置为接收除自 身之外的全功能设备发送的所述携带有数据信息的可见光信号， 并将接收到的 可见光信号转发给一个或多个所述精简功能设备。
7. 根据权利要求 1至 6中任一项所述的光通信系统， 其中， 所述可见光通信光源 是交通指示灯。
8. 根据权利要求 1至 6中任一项所述的光通信系统， 其中， 所述精简功能设备是 带有摄像功能的设备。 根据权利要求 1至 6中任一项所述的光通信系统， 其中， 所述携带有数据信息 的可见光信号是通过荧光灯和 /或发光二极管发出的明暗闪烁信号。
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105444752A (zh) * 2014-09-02 2016-03-30 深圳市芯通信息科技有限公司 基于光源亮度的室内定位方法、装置及系统
CN112533342A (zh) * 2020-11-06 2021-03-19 珠海格力电器股份有限公司 一种照明系统及其控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101232329A (zh) * 2007-11-28 2008-07-30 华东理工大学 可见光通信系统的干扰消除方法
CN101814955A (zh) * 2009-02-23 2010-08-25 株式会社东芝 可见光通信系统中用于发射和接收信号的装置
CN102610115A (zh) * 2012-03-09 2012-07-25 郭丰亮 基于led可见光通信的智能交通系统
CN102625509A (zh) * 2012-03-09 2012-08-01 郭丰亮 基于led可见光通信的智能照明系统

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001292107A (ja) * 2000-04-06 2001-10-19 Sony Corp 受信装置、送信装置、および通信システム
EP1860800A1 (en) * 2002-10-24 2007-11-28 Nakagawa Laboratories, Inc. Illumination light communication device
JP4848691B2 (ja) * 2005-07-12 2011-12-28 日本電気株式会社 携帯端末、情報サーバ、照明装置、情報配信システム、情報取得方法およびプログラム
KR100770918B1 (ko) * 2006-10-20 2007-10-26 삼성전자주식회사 가시광 통신 장치에서 현재 상태에 따라 방출되는 가시광색 제어 장치 및 방법
KR101433939B1 (ko) * 2007-09-13 2014-08-26 삼성전자주식회사 가시광 통신을 이용한 무선 랜 시스템에서 데이터 재전송방법 및 장치
KR101615762B1 (ko) * 2009-09-19 2016-04-27 삼성전자주식회사 다중 통신 모드를 제공하는 가시광 통신 시스템에서 가시 프레임을 출력하기 위한 방법 및 장치
KR101654934B1 (ko) * 2009-10-31 2016-09-23 삼성전자주식회사 가시광 통신 방법 및 장치
KR101683881B1 (ko) * 2009-11-06 2016-12-08 삼성전자주식회사 가시광 통신 시스템에서 송수신측 가시 프레임 출력을 결정하기 위한 방법 및 장치
US8699397B2 (en) * 2010-07-28 2014-04-15 Interdigital Patent Holdings, Inc. Method and apparatus for multimedia broadcast multicast services (MBMS) service feedback
KR101312765B1 (ko) * 2010-10-27 2013-11-21 주식회사 팬택 가시광 통신을 이용한 메시지 전달 시스템 및 방법
CN102148641A (zh) * 2011-02-25 2011-08-10 中兴通讯股份有限公司 一种用户设备之间的数据传输方法及系统
CN102624453A (zh) * 2012-02-27 2012-08-01 郭丰亮 基于led可见光的机舱网络系统
CN102622683A (zh) * 2012-03-09 2012-08-01 郭丰亮 一种基于Zigbee和LED可见光通信的仓库管理系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101232329A (zh) * 2007-11-28 2008-07-30 华东理工大学 可见光通信系统的干扰消除方法
CN101814955A (zh) * 2009-02-23 2010-08-25 株式会社东芝 可见光通信系统中用于发射和接收信号的装置
CN102610115A (zh) * 2012-03-09 2012-07-25 郭丰亮 基于led可见光通信的智能交通系统
CN102625509A (zh) * 2012-03-09 2012-08-01 郭丰亮 基于led可见光通信的智能照明系统

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