CN108282228A - Multizone dual controller layered network architecture based on indoor visible light communication - Google Patents
Multizone dual controller layered network architecture based on indoor visible light communication Download PDFInfo
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- CN108282228A CN108282228A CN201810032468.7A CN201810032468A CN108282228A CN 108282228 A CN108282228 A CN 108282228A CN 201810032468 A CN201810032468 A CN 201810032468A CN 108282228 A CN108282228 A CN 108282228A
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- 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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
- H04B10/25752—Optical arrangements for wireless networks
-
- 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
- H04B10/27—Arrangements for networking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0081—Fault tolerance; Redundancy; Recovery; Reconfigurability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/009—Topology aspects
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- Electromagnetism (AREA)
- Computing Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention proposes a kind of multizone dual controller layered network architecture based on indoor visible light communication, it is poor for solving autgmentability present in existing network framework, the problem of roaming switch degraded performance, including server, cloud controller AC, local controller AC, multiple convergence switches, multiple access switch, multiple visible light AP；Server and cloud controller AC are connected by cable network with multiple local controller AC, form dual controller collaboration mode, each local controller AC is connected by convergence switch access switch different from the same area, each access switch is connected according to port number itself with the different visible light AP in the interchanger region；Visible light AP includes network module, signal emission module and receiving module, wherein transmitting module uses light emitting diode, receiving module to use infrared receiving set.
Description
Technical field
The invention belongs to technical field of photo communication, are related to a kind of multizone dual controller layered network architecture, and in particular to
A kind of multizone dual controller layered network architecture based on indoor visible light communication system is suitable for multizone large-scale wireless
The deployment of optical-fiber network.
Background technology
Optic communication (Optical Communication) is the communication mode using light wave as carrier wave, includes mainly optical fiber, room
The communication technologys such as interior visible light, wireless optical, wherein indoor visible light communication technology (Visible light communication,
VLC refer to) using the light of visible light wave range as information carrier, without the transmission medium of the wire channel such as optical fiber, in air
Directly transmit the communication mode of optical signal.
Indoor visible light communication (Visible light communication, VLC) is the one kind rapidly developed in recent years
Novel wireless communication mode, illumination is combined with communication, increases data-transformation facility on lighting installation, pass through light source height by it
Fast light and shade flickers to transmit information.For Radio-Frequency Wireless Communication, indoor visible light communication has using with roomy and not
With authorize, not will produce electromagnetic radiation, it is safe the features such as, can be applied to hospital, gas station, cabin etc. and require electromagnetism dry
Small, the high place of security requirement is disturbed, and current radio frequency frequency band anxiety problem can be effectively relieved, becomes a kind of completely new room
The broadband access method of interior cordless communication network.
Since light emitting diode (light emitting diode, LED) has many advantages, such as energy saving and protection
Environment, good illuminating effect, sustainable use time length etc., make it following primary illumination mode.What LED was sent out
Light is natural light, is not easy to hurt the eyes of the mankind.As White light LED technology reaches its maturity, following lighting device will more
More is laid out using LED array, and the energy consumption of illumination can be made to be greatly lowered.Therefore, by the VLC skills based on LED illumination light source
Art is applied to have feasibility basis in next generation wireless communication, is a spare selection for building indoor Radio Communication System,
With prodigious future in engineering applications.
Currently, indoor visible light system is mostly in theoretical research and experimental stage, also all it is by direct in an experiment
Using signal generator by the signal loading after coding to LED transmitting terminals, short distance visible light communication is realized.With indoor visible
The development of light technology and the expansion of application range, there is an urgent need to a kind of frameworks and topology suitable for indoor visible light communication network
Design.
The network architecture (Network Architecture) is to provide one for one design, structure and management communication network
The blueprint of framework and technical foundation.Network architecture defines each aspect of data network communications system, including but not limited to uses
The type of interface type, the procotol and the network layout that may be used that use that family uses.The typical network architecture is general
For layered structure.Layered structure be it is a kind of communication task is divided into many smaller parts, be each partially completed one it is specific
Subtask and the structure that is combined with other parts with customized mode.
For wireless system, with the continuous development of mobile Internet and wireless network, the framework phychology of wlan product
It experienced multiple differentiation.Traditional wlan device is by ciphering user data, the certification of user, security strategy, physical layer, data-link
The multiple functions such as road floor are integrated in one, and are commonly called as directly being connected by interchanger for " fat AP ", multiple " fat AP ".Its advantage is that configuration
Flexibly, installation is simple, is suitable for simple small wireless network.But between AP independently of each other, it is difficult to concentrated controling management, it can not
Adapt to user density height, multiple AP continuously large-scale wireless network system such as covering.A kind of controller AC+ emerging in recent years
The combination of Fit AP, wherein Fit AP are only responsible for data transmission and fraction control function.Pass through between AC and Fit AP
CAPWAP tunnel transmits control and data message, and for end user's angle, the Fit AP in this combination can be considered as AC
Distal end transmitting antenna.This emerging framework is capable of providing more abundant radio function, is applicable to large-scale wireless network,
Solve the problems, such as that AP is difficult to manage concentratedly in traditional wireless architecture, such as：Chen Yu is prosperous et al. based on AC+AP covering patterns
Wireless network architecture and Innovation of Library Service [J] Journal of Library and Information Sciences in Agriculture, 2017,29 (8):It is disclosed in 59-61.
A kind of completely new wireless network architecture of AC+AP covering patterns.It is built using AC+AP covering patterns, wireless network is managed concentratedly by AC
Each node of network (i.e. the AP launch points of different location) achievees the purpose that seamless roaming link.Each AP passes through with net Electricity Functional
7 class cables be connected with POE interchangers, AC docks core switch, and POE and AC belong to a VLAN, realize AC-POE-AP
The wireless network architecture of management and covering pattern.Its advantage is：Support office mobile and multimedia application, simplify network deployment and
Management, has both high-performance, high security.But it is controlled using single local controller AC in wireless network architecture, in framework
Wireless aps using technology for radio frequency transmit information, cause the scalability of framework and roaming switch performance poor.
Invention content
The purpose of the present invention is in view of the above shortcomings of the prior art, it is proposed that a kind of based on the more of indoor visible light communication
Region dual controller layered network architecture, it is intended to improve the scalability and roaming switch performance of the network architecture.
To achieve the above object, the technical solution that the present invention specifically takes is：
A kind of multizone dual controller layered network architecture based on indoor visible light communication, including the control of server 1, cloud
Device AC 2, multiple local controller AC 3, multiple convergence switches 4, multiple access switch 5 and multiple visible light AP 6；
The visible light AP 6, including network module, signal emission module and receiving module, for converting the electrical signal to
The information that carries of the visible light signal visible light or infrared signal that are transferred to user, while the user uplink received being sent
Electric signal is converted to, and is sent to access switch 5；
The server 1 and cloud controller AC 2 are connected by network with multiple local controller AC 3, each local control
Device AC 3 processed is connected by the access switch 5 different from the same area of convergence switch 4, each access switch 5
It is connected with the different visible light AP 6 in the interchanger region according to port number itself.
The above-mentioned multizone dual controller layered network architecture based on indoor visible light communication, the signal emission module,
Using light emitting diode.
The above-mentioned multizone dual controller layered network architecture based on indoor visible light communication, the receiving module use
Infrared receiving set.
Compared with prior art, the present invention haing the following advantages：
The first, cloud controller AC realizes the function of uniformly issuing configuration, edition upgrading in the present invention, reaches concentration and is responsible for this
The load balancing of ground controller AC and the purpose for simplifying local controller AC work, local controller AC are independently responsible for each region
Adjacent visible light AP between roaming switch, this dual controller collaboration mode effectively raises the roaming of the network architecture
Can, and avoid that Single Controller AC functions in the prior art are complicated, the computationally intensive roaming degraded performance problem brought；Together
When, the characteristic of indoor visible light positioning is utilized to realize between adjacent AP in the roaming switch in the present invention between visible light AP
Discovery and selection course, prediction algorithm is accurate, further improves the internetwork roaming performance of adjacent visible light AP.
The second, in the present invention, the region that each local controller AC is responsible for is mutual indepedent, can increase or decrease on a large scale
Number of partitions, network autgmentability is good, and the failure if wherein a certain region is gone on a journey does not interfere with other regions, if wherein a certain area
Local controller AC trip failures in domain, are continued to provide management function by cloud controller AC, to improve its fault-tolerant ability.
Visible light AP in third, the present invention, using indoor visible light communication technology and infrared communication technique as information
Transport vehicle extends covering and the application range of network in the case where alleviating existing frequency spectrum anxiety.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, present invention is further described in detail：
Referring to Fig.1, a kind of multizone dual controller layered network architecture based on indoor visible light communication, including server
1, cloud controller AC 2, multiple local controller AC 3, multiple convergence switches 4, multiple access switch 5 and multiple visible lights
AP 6；
Server 1 is used for the identity information of certification new access user, stores the status information of networking user, respond request
The data of the request of user, forwarding request user cache the location information of visible light AP 6 to purpose user；
Cloud controller AC 2, for being responsible for coordinating the load balancing between multiple local controller AC 3, centrally updated
The radio configuration and version file information of ground controller AC 3 and visible light AP 6 preserves local controller AC in current whole net
3, the status information of visible light AP 6；When local controller AC 3 breaks down, for the local controller AC 3 of failure
Responsible region visible light AP 6 provide control and management function；
Local controller AC 3 is set as three-layer routing pattern, the adjacent visible light AP 6 in responsible region for controlling
Between roaming switch；
Convergence switch 4 belongs to network layer switch, for concentrating the access switch 5 in convergence the same area and turning
The data of hair request user；
Access switch 5, belongs to data link layer switch, for concentrating the visible light AP 6 for connecting the same region,
And forward data to visible light AP 6 according to the target MAC (Media Access Control) address in data packet；
Visible light AP 6, including network module, signal emission module and receiving module, network module are mainly used for receive
The network packet dismantling arrived, and it is transferred to transmitting module, light emitting diode or fluorescent lamp can be used in transmitting module, due to holding
The advantages of continuous lighting hours is long, good illumination effect, transmitting module uses light emitting diode in the present invention, for converting electric signal
At visible light signal carry information be transferred to user；Photodetector or infrared receiving set can be used in receiving module, in order to
Same downlink visible light signal is avoided to interfere with each other, receiving module uses infrared receiving set, the user for will receive in the present invention
The infrared signal that uplink is sent is converted to electric signal, and is sent to access switch 5；
For the concise high roaming switch performance for embodying this framework and ability is extended by force, the present embodiment is specifically divided into general headquarters
Area and a subregion, wherein general headquarters region includes the cloud controller AC 2, one of server 1, one local controller AC 3, one
Platform access switch 5 and four visible light AP 6；Subregion includes 3, convergence switches 4, two of a local controller AC
Platform access switch 5 and eight visible light AP 6.Wherein, the server 1 in general headquarters and cloud controller AC 2 pass through wired and sheet
Ground controller AC 3 is connected, and local controller AC3 is connected by an access switch 5 with four visible light AP；In subregion
Local controller AC 3 by cable network in general headquarters server 1 and cloud controller AC 2 be connected, composition dual controller association
Operation mode, the local controller AC 3 in subregion are connected by convergence switch 4 with two access switch 5, and every access is handed over
It changes planes and 5 is connected with four visible light AP 6；Partition network and main office network are mutual indepedent, wherein the failure of a certain region will not
Influence other regions, if desired increase more multi partition, can by the local controller AC 3 in subregion by cable network directly with
Server 1 is connected with cloud controller AC 2.
General headquarters cloud controller AC 2 is responsible for the load balancing of the Collective qualification mandate and local controller AC 3 of networking user.
If subregion needs individual cultivation, subregion webmaster that can apply for opening special management permission on general headquarters cloud controller AC 2 to this
Ground control AC 3 and visible light AP 6 is configured, and realizes the function of classification decentralized management；Visible light AP 6 in subregion and sheet
Ground controller AC 3 is by CAPWAP tunnel BOUND communication, the failure if the local controller AC 3 where subregion goes on a journey, it is seen that light
AP 6 can be continued to provide management function and service by general headquarters cloud controller AC 2 with Automatic-searching to general headquarters cloud controller AC 2.
Claims (3)
1. a kind of multizone dual controller layered network architecture based on indoor visible light communication, which is characterized in that including service
Device (1), cloud controller AC (2), multiple local controller AC (3), multiple convergence switches (4), multiple access switch (5) and
Multiple visible light AP (6)；
The visible light AP (6), including network module, signal emission module and receiving module, for what is converted the electrical signal to
The information that visible light signal carries is transferred to user, while visible light or infrared signal that the user uplink received is sent turn
It is changed to electric signal, and is sent to access switch (5)；
The server (1) and cloud controller AC (2) are connected by network with multiple local controller AC (3), each local control
Device AC (3) processed is connected by convergence switch (4) access switch (5) different from the same area, each access exchanges
Machine (5) is connected according to port number itself with the different visible light AP (6) in the interchanger region.
2. the multizone dual controller layered network architecture according to claim 1 based on indoor visible light communication, special
Sign is, the signal emission module, using light emitting diode.
3. the multizone dual controller layered network architecture according to claim 1 based on indoor visible light communication, special
Sign is, the receiving module, using infrared receiving set.
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| CN201810032468.7A CN108282228A (en) | 2018-01-12 | 2018-01-12 | Multizone dual controller layered network architecture based on indoor visible light communication |
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| CN201810032468.7A CN108282228A (en) | 2018-01-12 | 2018-01-12 | Multizone dual controller layered network architecture based on indoor visible light communication |
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Cited By (6)
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| CN109640196A (en) * | 2018-11-26 | 2019-04-16 | 中国人民解放军国防科技大学 | Wireless optical communication link reconfigurable system for data center |
| CN110224753A (en) * | 2019-06-25 | 2019-09-10 | Oppo广东移动通信有限公司 | Wireless communications method and Related product |
| CN110850799A (en) * | 2019-11-19 | 2020-02-28 | 俊杰机械(深圳)有限公司 | Production equipment adjusting device and adjusting method thereof |
| CN111147140A (en) * | 2020-02-01 | 2020-05-12 | 东莞智联光频科技有限公司 | Mobile communication network system based on visible light communication technology |
| CN111273189A (en) * | 2020-01-21 | 2020-06-12 | 金陵科技学院 | Illuminating lamp state detection, prediction and maintenance system |
| CN111372148A (en) * | 2020-04-13 | 2020-07-03 | 长春光客科技有限公司 | Indoor overhead optical router network wireless optical communication device and method |
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Application publication date: 20180713 |