CN206743273U

CN206743273U - A kind of two-wire bus Local network communication system

Info

Publication number: CN206743273U
Application number: CN201720505227.0U
Authority: CN
Inventors: 沈强
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-05-09
Filing date: 2017-05-09
Publication date: 2017-12-12
Anticipated expiration: 2027-05-09

Abstract

A kind of two-wire bus Local network communication system, including two-wire bus, Local network communication system adapter, some local area network terminal interfaces, Local network communication system adapter are connected on the two-wire bus with local area network terminal interface.Local network communication system adapter and local area network terminal interface include MAC/PHY transceivers, bus signals driver, signal coupling transformer, power supply signal separator, ethernet signal transformer and network connection interface, Local network communication system adapter also includes feed power module, and local area network terminal interface also includes by electric power conversion module.Two-wire bus is applied to Local network communication system by the utility model, and multiple network terminals can be attempted by two-wire bus, it is possible to reduce substantial amounts of length of arrangement wire, saves nonferrous metal resource and a large amount of man-hours；Transmission speed can reach hundreds of million bps, while increase substantially the communication distance of LAN, solve the problems, such as that netting twine networking distance is shorter.

Description

A kind of two-wire bus Local network communication system

Technical field

The utility model belongs to Local network communication field, and in particular to a kind of two-wire bus Local network communication system.

Background technology

Current network-termination device (such as PC, web camera) is connected by netting twine in a manner of man-to-man To interchanger or gateway device, device power supply (DPS) can obtain or with independent line powering from civil power in addition, can also be with POE side Formula is obtained from POE interchangers in a manner of man-to-man, is total cloth inside LAN the shortcomings that connection in this way Line length is grown, and construction workload is big, consumes wire rod and artificial more, the effective communication of netting twine apart from it is short (connection of usual netting twine away from From up to 100m)；The internal network connection formed by the way of Homeplug communication can only be under same ammeter and only same It mutually can just use, be changed greatly additionally, due to what is loaded in power circuit, the speed of Homeplug network communication in the case of electricity Can be by large effect.

The content of the invention

The utility model is to solve the above problems, provide a kind of Local network communication system of two-wire bus connection, adapter It is connected in parallel on multiple terminal devices on a two-wire bus, realizes the reduction of length of arrangement wire, and reduce man-hour, is added Communication distance, the target of convenient use.

The utility model solves its technical problem and is achieved through the following technical solutions：

A kind of two-wire bus Local network communication system, including two-wire bus, the local Netcom of connection on the bus System adapter is interrogated, connects some local area network terminal interfaces on the bus, the Local network communication system adapter and office Domain network termination interface is connected on the two-wire bus.

Further, the Local network communication system adapter includes MAC/PHY transceivers, bus signals driver, letter Number coupling transformer, power supply signal separator, ethernet signal transformer and RJ45 interfaces；The bus signals driver with MAC/PHY transceivers are connected, and the bus signals driver is connected with bus signals coupler, the bus signals coupler Power supply signal separator is connected, the power supply signal separator connects two-wire bus；The MAC/PHY transceivers and Ethernet Signal transformer is connected, and the ethernet signal transformer is connected with RJ45 interfaces, the exchange outside the RJ45 interfaces connection Machine or gateway.

Further, in the Local network communication system adapter, in addition to feed power module；The power supply signal point From the input of the output end connection feed power module of device, and the output end of the feed power module is connected with power conversion Module, the input of the input and MAC/PHY transceivers of the output end connection bus signals driver of the power conversion module End.

Further, the local area network terminal interface includes MAC/PHY transceivers, bus signals driver, signal coupling Transformer, power supply signal separator, ethernet signal transformer, network connection interface；The bus signals driver and MAC/ PHY transceivers are connected, and the bus signals driver is connected with bus signals coupler, the bus signals coupler connection Power supply signal separator, the power supply signal separator connect two-wire bus；The MAC/PHY transceivers and ethernet signal Transformer is connected, and the ethernet signal transformer is connected with network connection interface, outside the network connection interface connection Network-termination device or network core node.

Further, the network connection interface is RJ45 interfaces；Or the network connection interface connects for network signal Line terminals.

Further, in the local area network terminal interface, in addition to by electric power conversion module；The power supply signal separation The output end of device connects the input by electric power conversion module, and first output end by electric power conversion module is connected with Alternative network Terminal Equipment Power interface, second output end by electric power conversion module connect bus signals driving respectively The input of device and the input of MAC/PHY transceivers.

The beneficial effects of the utility model are：

Compared with prior art, two-wire bus is applied to Local network communication system by the utility model, can will be multiple The network terminal is attempted by two-wire bus, it is possible to reduce substantial amounts of length of arrangement wire, saves nonferrous metal resource and a large amount of works When；The communication distance of LAN is increased substantially simultaneously, and network bandwidth can reach hundreds of million bps, solve netting twine networking distance The problem of shorter；Bus signals coupler is added in Local network communication system adapter and local area network terminal interface, is whole Individual circuit provides guarantee.

Brief description of the drawings

Fig. 1 is a kind of two-wire bus Local network communication system schematic block diagram of the utility model；

Fig. 2 is the schematic block diagram of the utility model Local network communication system adapter；

Fig. 3 is the schematic block diagram of the utility model local area network terminal interface.

Embodiment

Below by specific embodiment, the utility model is described in further detail, following examples be it is descriptive, no It is limited, it is impossible to which the scope of protection of the utility model is limited with this.

As shown in figure 1, a kind of two-wire bus Local network communication system, including two-wire bus, connection are on the bus Local network communication system adapter, connect some local area network terminal interfaces on the bus, Local network communication system adaptation Device is connected on two-wire bus with local area network terminal interface.

Local network communication system adapter can be also embedded in the network equipments such as interchanger, gateway, had as one special There is the message switching interface of purposes.

Local area network terminal interface may be used as general interface, can also be embedded in the application apparatus such as web camera, As a network terminating interface with proprietary purposes.

Local network communication system adapter include MAC/PHY transceivers, bus signals driver, signal coupling transformer, Power supply signal separator, ethernet signal transformer and RJ45 interfaces.

Local area network terminal interface includes MAC/PHY transceivers, bus signals driver, signal coupling transformer, power supply letter Number separator, ethernet signal transformer and RJ45 interfaces, in local area network terminal interface available network signal terminal filial generation replace RJ45 ports.

MAC/PHY transceivers are used to handle the data packet signal for receiving and from two-wire bus, and will receive the number of coming According to bag signal transacting bus signals driver and ethernet signal transformer are sent into packet.Bus signals driver is used for handle The signal to be sent carries out power amplification processing to adapt to the requirement of signal bus transmission, or will be received from two-wire bus Signal the pretreatment such as be filtered, amplify so as to the further processing of MAC/PHY transceivers.Bus signals coupler is used for The signal of bus signals driver output provides an impedance matching.Power supply signal separator is used to separate signal and power supply.With Too net signal transformer enters line level coupling between MAC/PHY transceivers and RJ45 interfaces.RJ45 interfaces or network signal connect Line terminals are used to the data packet signal of the MAC/PHY transceivers received being connected with the interchanger or gateway of outside, and two Each transceiver has unique numbering and MAC Address inside line bus LAN.

As shown in Fig. 2 Local network communication system adapter also includes feed power module, feed power module is used for for simultaneously The local area network terminal interface and its equipment being connected on two-wire bus provide power supply.In Local network communication system adapter, power supply The input of the output end connection feed power module of demultiplexer, and the output end for feeding power module is connected with power supply change Change the mold block, the input of output end connection bus signals driver and the input of MAC/PHY transceivers of power conversion module. Bus signals driver is connected with MAC/PHY transceivers, and bus signals driver is connected with bus signals coupler, bus letter Number coupler connection power supply signal separator, power supply signal separator connection two-wire bus.MAC/PHY transceivers and Ethernet Signal transformer is connected, and ethernet signal transformer is connected with RJ45 interfaces, interchanger or gateway outside the connection of RJ45 interfaces.

As shown in figure 3, local area network terminal interface is also included by electric power conversion module, it is used to connect by electric power conversion module The power supply from two-wire bus input is received, by the supply voltage needed for the power conversion into local area network terminal received, and can be pre- Stay power interface needed for local network terminal.In local area network terminal interface, the output end of power supply signal separator is connected by electricity The input of power conversion module, it is connected with alternative network Terminal Equipment Power by the first output end of electric power conversion module and is connect Mouthful, bus signals driver and MAC/PHY transceivers are connected respectively by the second output end of electric power conversion module.Bus signals Driver is connected with MAC/PHY transceivers, and bus signals driver is connected with bus signals coupler, bus signals coupler It is connected in parallel on two-wire bus.MAC/PHY transceivers are connected with ethernet signal transformer, ethernet signal transformer and network Signal terminal or the connection of RJ45 interfaces, network signal binding post and RJ45 interfaces can be with network-termination device or network cores Heart node connects.

Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims

A kind of 1. two-wire bus Local network communication system, it is characterised in that：Including two-wire bus, connection on the bus Local network communication system adapter, connects some local area network terminal interfaces on the bus, and the Local network communication system is fitted Orchestration is connected on the two-wire bus with local area network terminal interface.
A kind of 2. two-wire bus Local network communication system as claimed in claim 1, it is characterised in that：The Local network communication System adapter includes MAC/PHY transceivers, bus signals driver, signal coupling transformer, power supply signal separator, ether Net signal transformer and RJ45 interfaces；The bus signals driver is connected with MAC/PHY transceivers, and the bus signals drive Dynamic device is connected with bus signals coupler, and the bus signals coupler connects power supply signal separator, the power supply signal point Two-wire bus is connected from device；The MAC/PHY transceivers are connected with ethernet signal transformer, the ethernet signal transformation Device is connected with RJ45 interfaces, interchanger or gateway outside the RJ45 interfaces connection.
A kind of 3. two-wire bus Local network communication system as claimed in claim 2, it is characterised in that：The Local network communication In system adapter, in addition to feed power module；The output end connection feed power module of the power supply signal separator Input, and the output end of the feed power module is connected with power conversion module, the output end of the power conversion module Connect the input of bus signals driver and the input of MAC/PHY transceivers.
A kind of 4. two-wire bus Local network communication system as claimed in claim 1, it is characterised in that：The local area network terminal Interface includes MAC/PHY transceivers, bus signals driver, signal coupling transformer, power supply signal separator, ethernet signal Transformer, network connection interface；The bus signals driver is connected with MAC/PHY transceivers, and the bus signals drive Device is connected with bus signals coupler, and the bus signals coupler connects power supply signal separator, the power supply signal separation Device connects two-wire bus；The MAC/PHY transceivers are connected with ethernet signal transformer, the ethernet signal transformer It is connected with network connection interface, network-termination device or network core node outside the network connection interface connection.
A kind of 5. two-wire bus Local network communication system as claimed in claim 4, it is characterised in that：The network connection connects Mouth is RJ45 interfaces；Or the network connection interface is network signal binding post.
A kind of 6. two-wire bus Local network communication system as claimed in claim 5, it is characterised in that：The local area network terminal In interface, in addition to by electric power conversion module；The output end of the power supply signal separator is connected by electric power conversion module Input, first output end by electric power conversion module is connected with alternative network Terminal Equipment Power interface, described By the second output end of electric power conversion module connect respectively bus signals driver input and MAC/PHY transceivers it is defeated Enter end.