CN105490891A - Local area network structure based on power line and visible light communication - Google Patents
Local area network structure based on power line and visible light communication Download PDFInfo
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- CN105490891A CN105490891A CN201510214892.XA CN201510214892A CN105490891A CN 105490891 A CN105490891 A CN 105490891A CN 201510214892 A CN201510214892 A CN 201510214892A CN 105490891 A CN105490891 A CN 105490891A
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Abstract
The invention belongs to the technical field of local area network construction, and particularly relates to a local area network structure based on a power line and visible light communication. The local area network structure based on the power line and the visible light communication comprises a network source and indoor computers. The local area network structure is characterized in that the network source is connected with outdoor power line communication modems; the outdoor power line communication modems are connected with outdoor couplers on live lines and zero lines; the live lines and the zero lines are connected with indoor couplers respectively; the indoor couplers are connected with indoor power line communication modems; the indoor power line communication modems are connected with a visible light concentrator; the visible light concentrator is connected with white-light light-emitting diode (LED) lamps and photoelectric detectors respectively; and the computers are connected with user adapters. The local area network structure has the beneficial effects of saving of cost, convenience in operation, high stability, convenience in maintenance, lower environment pollution, avoidance of secret leakage and no influence on normal illumination.
Description
(1) technical field
The invention belongs to local area network (LAN) constructing technology field, particularly a kind of local area network structure based on power line and visible light communication.
(2) background technology
At present, traditional local area network (LAN) construction method takes Fiber connection between floor and between room, and house interior takes netting twine or WIFI to connect, and realizes the network interconnection of each terminal under the equipment supports such as the network switch.
Although intelligent acess improves network data transmission rate, but laying optical fiber between floors and between room, especially, between the old building of those originally Non-precondition weak electric wire wells and weak electric wire road and bridge framves during laying optical fiber, costly, difficulty of construction is large, some places limit by condition, at all cannot laying optical fiber circuit, and during the impaired maintenance of optical fiber, have rigors to repair and maintaining and technology, repairing efficiency is long, and maintenance cost is high.
When each terminal of house interior takes netting twine interconnected, the slightly long then signal attenuation of circuit becomes large, and the error rate increases, and affects attractive in appearance; When indoor each terminal is as taked WIFI interconnected, then electromagnetic radiation can be produced, contaminated environment, and when relying on WIFI to carry out Signal transmissions, also by periphery electromagnetic environment and building scenes (wall thickness, amount of reinforcement etc.) impact, cause quorum sensing inhibitor consistency poor, even local signal is unstable, due to the radiation feature of electromagnetic signal, also there is the hidden danger that user profile is leaked.
Traditional optical fiber adds the local area network (LAN) building mode of netting twine (or WIFI), needs to lay or fiber plant between floor, between room, and greatly affected by environment, costly, maintenance difficulties is high; Adopt in room five classes or six class netting twines interconnected time, circuit is easily aging, causes the error rate to raise with the elongated signal attenuation of circuit, when terminal number is more, maintenance difficulty after line fault, during pre-buried line failure replacing new line, difficulty of construction is larger; When adopting WIFI interconnected in room, then electromagnetic radiation can be produced, contaminated environment, and when relying on WIFI to carry out Signal transmissions, also by periphery electromagnetic environment and building scenes (as wall thickness, layout structure, wall steel bar consumption etc.) impact, quorum sensing inhibitor is uneven, respective regions no signal or jitter, due to the radiation feature of electromagnetic signal, also there is the hidden danger that user profile is leaked.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, provides the local area network structure based on power line and visible light communication that a kind of cost-saving, simple operation, stability highly, easy to maintenance reduce environmental pollution, avoid divulging a secret.
The present invention is achieved through the following technical solutions:
A kind of local area network structure based on power line and visible light communication, comprise network source and be placed in indoor computer, it is characterized in that: described network source is connected with outdoor power cat, outdoor power cat is connected with the outdoor coupler on zero line with live wire, live wire and zero line are connected with indoor coupler respectively, indoor coupler is connected with indoor power cat, indoor power cat is connected with visible ray hub, visible ray hub is connected with photoelectric detector with white LED lamp respectively, and computer is connected with station adapter.
Router and switch is connected with between described network source and outdoor power cat.
Described live wire is connected with electric energy meter with zero line.
The invention has the beneficial effects as follows:
(1), the infrastructure such as power line, White-light LED illumination lamp can be made full use of, without the need to newly-increased wiring, a large amount of newly-increased investment can be saved and simple operation.Compared with traditional optical fiber screening line method, the network operation stability that the method builds is higher, easy to maintenance and cost is lower during line fault;
(2) bottleneck problem of network insertion " last one kilometer ", can be solved fast, economical, utilize the feature of power line and lighting all weather operations, easily can realize LAN data, supply of electric power and normal lighting in the integrated application of one, also can control at intelligent electric appliance, Digital Campus service, the field such as community security protection be applied;
(3), can electromagnetic spectrum be applied for, effectively reduce the environmental pollution that electromagnetic radiation causes, due to easily the blocking property of light, can effectively solve when conventional method builds local area network (LAN) because internal home network signal electromagnet leaks the secret leaking problem caused.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Accompanying drawing 1 is topological structure schematic diagram of the present invention;
Accompanying drawing 2 is theory diagram of the present invention;
In figure, 1 network source, 2 computers, 3 outdoor power cats, 4 live wires, 5 zero lines, 6 outdoor couplers, 7 indoor couplers, 8 indoor power cats, 9 visible ray hubs, 10 white LED lamps, 11 photoelectric detectors, 12 station adapters, 13 routers, 14 switches, 15 electric energy meters.
(5) embodiment
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises network source 1 and is placed in indoor computer 2, network source 1 is connected with outdoor power cat 3, outdoor power cat 3 is connected with the outdoor coupler 6 on zero line 5 with live wire 4, live wire 4 and zero line 5 are connected with indoor coupler 7 respectively, indoor coupler 7 is connected with indoor power cat 8, indoor power cat 8 is connected with visible ray hub 9, and visible ray hub 9 is connected with photoelectric detector 11 with white LED lamp 10 respectively, and computer 2 is connected with station adapter 12.Router one 3 and switch 14 is connected with between network source 1 and outdoor power cat 3.Live wire 4 is connected with electric energy meter 15 with zero line 5.
Adopt a kind of local area network structure based on power line and visible light communication of the present invention, the power circuit rely between floor, both having established between room and other corollary equipment, realize main line network exchanges data and transmission, to overcome the problems such as the high cost of optical fiber erection, difficult maintenance; Utilize white light LED lighting device and other corollary equipment, realize internal home network exchanges data and transmission, raise with the elongated error rate of the circuit overcoming netting twine mode, the problem of maintenance and replacing new line difficulty.Can also overcome when adopting WIFI interconnected, electromagnetic radiation pollution environment, is subject to periphery electromagnetic environment and building scenes (as wall thickness, layout structure, wall steel bar consumption etc.) impact, and quorum sensing inhibitor uneven and user profile such as easily to leak at the problem.
Adopt a kind of local area network structure based on power line and visible light communication of the present invention, to comprise between floor that (or between room) communication link builds, communication link builds two parts in room, these two links overlap, form a complete data link, rely on this link, realize exchange and the transmission of network data.
Between floor, (or between room) communication link mainly comprises: the parts such as power line data modulator-demodulator (referred to as Homeplug), power line data couplers, power line.For convenience of describing, the communication link of floor gap (or between room) is divided into forward direction route and reverse route.In forward direction route, network source 1 modulates form format packet through outdoor power cat 3, by power line data couplers (being called for short outdoor coupler 6), formatted data bag enters the power line both established in floor and is transmitted to each room along the live wire 4 of power line and zero line 5, data are taken out by the indoor coupler 7 installed in room, by indoor power cat 8, formatted data bag is demodulated network data, the head joint equipment transmission of connection rearwards; As similar in above-mentioned forward direction route, in reverse route, the network data of each subscriber computer 2 terminal is modulated into after formatted data bag through indoor power cat 8, by indoor coupler 7, this formatted data bag is sent into live wire 4 and the zero line 5 of power line, formatted data bag takes out and demodulates network data through outdoor power cat 3 by outdoor coupler 6, upload to the corresponding network switch 14, realize the exchange transmission of network data.Because network data cannot cross over electric energy meter 15, so formatted data bag can not transmit and cause secret leaking outside design section.
In room, communication link mainly comprises: the part such as visible light communication hub (VLC hub), photoelectric detector, station adapter, white LED lamp.For convenience of describing, the communication link in room is also divided into forward direction route and reverse route.In forward direction route, as previously mentioned, indoor power cat 8 demodulates network data from formatted data bag, after this network data sends into visible ray hub 9, data to be modulated onto in spectrum via white LED lamp 10 in a broadcast manner to each subscriber computer 2 terminal transmission, for ensureing signal stabilization, indoor can arrange multiple white LED lamp 10(and be called main light source) form LED array, these white LED lamps 10 are except the transmission of undertaking network data, also bear the task of room lighting, indoor each computer 2 terminal completes light signal by the station adapter 12 receiving terminal receiving optical signals arranged respectively and changes to the signal of telecommunication and demodulate network data, judge whether to one's name packet by the station address in packet, if it is receive, otherwise just abandon.In reverse route, the data of computer 2 terminal are modulated in spectrum through station adapter 12 transmitting terminal, user's light source is called by the directed white LED lamp 10(on station adapter, emission area is less, and be adjusted to directional illumination state), transfer to the photoelectric detector 11 on roof, light signal is reduced into the signal of telecommunication by photoelectric detector 11, this signal of telecommunication processes further through visible ray hub 9 and restores user data and pack the data to network data according to the universal standard, determine that each computer 2 terminal room transmits or outwards transmits through Homeplug in indoor according to destination address.Visible ray hub 9 is core components of internal home network structure, it had both been responsible for receiving the information from house computers 2 terminal, extranet information is received again by Homeplug, then at times by the information received by main light source to indoor each computer 2 terminal broadcast (each computer 2 terminal determines whether extract each packet according to the destination address of packet), it is connected with external network through Homeplug in addition, realizes exchange and the transmission of network data between internal-external network.
Adopt a kind of local area network structure based on power line and visible light communication of the present invention, Integrated predict model power line communication technology and visible light communication technique construction local area network (LAN) basic link, traditional optical fiber is replaced to add the construction method of netting twine (or WIFI), utilize the power line that floor and room had both been established, do not need the circuits such as extra erecting optical cables, netting twine, data transmission link can be opened by fast and low-cost; Utilize indoor white light LED lamp and supporting setting, to realize under lighting condition that network data is radiationless, high speed secrecy transmission not affecting.Both resource and other auxiliary facility had been established by power line, wall power sockets, white light LEDs etc., the network interconnection and the interoperability of the equipment such as terminal in feasible region, the network printer, PAD, smart mobile phone can be facilitated, thus rapid build intelligentized LAN.
Adopt a kind of local area network structure based on power line and visible light communication of the present invention, for certain 3 layers, school one building teaching building builds a campus area network as an example of the present invention, this teaching building shares an electric energy meter, 1 microcomputer room and 10 multi-media classrooms are had in building, 15 computers are joined in each microcomputer room, and each Media Classroom joins 1 computer.Require these computers composition local area network (LAN), and campus external network can be accessed.
1, exchange dynamo-electric mouth from building master network to draw and connect a netting twine to Homeplug, building electric energy meter outlet live wire and zero line install signal coupler respectively, Homeplug holding wire is connected with coupler.
2, a power supply base is chosen arbitrarily in microcomputer room and inherence, classroom, indoor power cat is inserted power supply base (indoor power cat and signal coupler integrate), the signal that indoor power cat exports draws and is connected to visible light communication hub, connect for convenience of house line's pass, generally visible light communication hub is fixed on roof, according to house computers terminal location and illumination needs, determine that number and the position of white light LED lamp (being arranged on roof) are also installed fixing, according to house computers position and quantity, determine quantity and the installation site of photoelectric detector (being arranged on roof), white LED lamp is connected with visible light communication hub with photoelectric detector, each terminal configures a station adapter, station adapter is generally arranged near computer, and adjust the angle of the directed white LED lamp of user's adaptation, the photoelectric detector corresponding with roof is used to aim at, should be unobstructed between the white LED lamp on station adapter receiving terminal and roof.
3, after the network data of building master network switch is modulated by Homeplug, send into power line through coupler to transmit, signal enters each classroom and microcomputer room along power line, the signal that coupler takes out by indoor power cat carries out demodulation and restores network data, be sent to visible light communication hub, network data is modulated in spectrum and is broadcasted to each terminal by white LED lamp by visible light communication hub, each terminal is received by the station adapter of configuration, demodulation restores network data, determine receive or abandon this data according to the destination address in network data.In like manner, the packet of each terminal is also modulated into by station adapter the photoelectric detector that light signal sends to roof, visible light communication hub is delivered after photoelectric detector receives and converts the signal of telecommunication to, the signal of telecommunication is packaged into the network data of standard and sends indoor power cat to and modulate by visible light communication hub, then be coupled on power line and transmit, the Homeplug of outdoor configuration carries out the signal that coupling comes to be pushed to building master network switch after demodulation is reduced into network packet, so just achieve exchanges data and the transmission of each computer and external network between each computer and building in building.
Claims (3)
1. the local area network structure based on power line and visible light communication, comprise network source (1) and be placed in indoor computer (2), it is characterized in that: described network source (1) is connected with outdoor power cat (3), outdoor power cat (3) is connected with the outdoor coupler (6) on zero line (5) with live wire (4), live wire (4) is connected with indoor coupler (7) respectively with zero line (5), indoor coupler (7) is connected with indoor power cat (8), indoor power cat (8) is connected with visible ray hub (9), visible ray hub (9) is connected with photoelectric detector (11) with white LED lamp (10) respectively, computer (2) is connected with station adapter (12).
2. a kind of local area network structure based on power line and visible light communication according to claim 1, is characterized in that: be connected with router (13) and switch (14) between described network source (1) and outdoor power cat (3).
3. a kind of local area network structure based on power line and visible light communication according to claim 1, is characterized in that: described live wire (4) is connected with electric energy meter (15) with zero line (5).
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| CN201510214892.XA CN105490891A (en) | 2015-04-30 | 2015-04-30 | Local area network structure based on power line and visible light communication |
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| CN201510214892.XA CN105490891A (en) | 2015-04-30 | 2015-04-30 | Local area network structure based on power line and visible light communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693905A (en) * | 2017-09-04 | 2018-02-16 | 重庆邮电大学 | One kind remote control injecting systems |
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| CN101836381A (en) * | 2007-10-26 | 2010-09-15 | 诺基亚西门子通信公司 | Method to diagnose an optical communication network |
| CN102820909A (en) * | 2012-07-19 | 2012-12-12 | 清华大学 | Communication method and system with combination of electric wire communication and light communication |
| CN103684531A (en) * | 2013-12-02 | 2014-03-26 | 同济大学 | Power line communication and visible light communication combined system and method for optimizing cell architectures |
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- 2015-04-30 CN CN201510214892.XA patent/CN105490891A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101836381A (en) * | 2007-10-26 | 2010-09-15 | 诺基亚西门子通信公司 | Method to diagnose an optical communication network |
| CN102820909A (en) * | 2012-07-19 | 2012-12-12 | 清华大学 | Communication method and system with combination of electric wire communication and light communication |
| CN103684531A (en) * | 2013-12-02 | 2014-03-26 | 同济大学 | Power line communication and visible light communication combined system and method for optimizing cell architectures |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107693905A (en) * | 2017-09-04 | 2018-02-16 | 重庆邮电大学 | One kind remote control injecting systems |
| CN107693905B (en) * | 2017-09-04 | 2020-11-10 | 重庆邮电大学 | A remote control injection system |
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Application publication date: 20160413 |
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