CN201774551U

CN201774551U - Real-time communication data ferry transmitter for two networks in physical isolation

Info

Publication number: CN201774551U
Application number: CN2010205070351U
Authority: CN
Inventors: 陈义; 宋韬; 盘细平; 曾玮
Original assignee: SHANGHAI SHENJI INFORMATION SYSTEM CO Ltd
Current assignee: SHANGHAI SHENJI INFORMATION SYSTEM CO Ltd
Priority date: 2010-08-25
Filing date: 2010-08-25
Publication date: 2011-03-23
Anticipated expiration: 2020-08-25

Abstract

The utility model relates to a real-time communication data ferry transmitter for two networks in physical isolation, which comprises a network A, a network B and two independent reversed one-way channels. The network A and the network B are isolated mutually, each one-way channel consists of a PC machine and a network electronic switch, wherein the PC machine consists of a microcomputer main board, a CPU chip and a hard disk, a first network interface of an electronic switch of one one-way channel is connected with the network A while a second network interface is connected with the network B, and a first network interface of an electronic switch of the other one-way channel is connected with the network B while a second network interface is connected with the network A. The real-time communication data ferry transmitter has the advantages as follows: 1), the real-time communication data ferry transmitter realizes communication of real-time communication terminals on the basis of an XMPP protocol in two physically isolated networks, always keeps physical isolation state of the two networks simultaneously and controls communication delay within 10 seconds, and 2), the real-time communication ferry transmitter adopts the two independent reversed one-way channels, effectively increases ferry speed and prolongs service lives of the network electronic switches.

Description

Two physics cut off network instant communication data ferry-boat transmitter

Technical field:

The utility model relates to the device and the transmission method of instant messaging between a kind of computer network, cuts off network instant communication data ferry-boat transmitter more specifically to a kind of two physics based on the XMPP agreement.

Background technology:

In a lot of fields,, network security there is very high requirement at present, requires internal network and external network physical isolation as government, army.Between physically-isolated two networks, carry out transfer of data, can only adopt the method for data ferry-boat, promptly earlier the data in the network are reached ferry-boat, again the data in this memory are reached another network with in the memory.Had corresponding data ferry-boat transmitter at file transfer at present, but, also do not had corresponding data ferry-boat transmitter for instant messaging based on the XMPP agreement.The data ferry-boat transmitter that does not also have at present two independent half-duplex channels in addition, so transmission speed is slower, the life-span of network electronic switch is shorter.

The utility model content:

The purpose of this utility model is to provide a kind of two physics based on the XMPP agreement to cut off network instant communication data ferry-boat transmitter at the prior art weak point.

The purpose of this utility model is to realize by following measure: a kind of two physics based on the XMPP agreement cut off network instant communication data ferry-boat transmitter, the network A, the network B that comprise mutual isolation, its special character is to also have two independently reverse each other half-duplex channels; The PC that described half-duplex channel is made up of computer motherboard and cpu chip, hard disk, and the network electronic switch is formed; The network electronic switch is connected on the PC by USB interface, and the network electronic switch is provided with first network interface, second network interface; First network interface of the electronic switch of described one road half-duplex channel connects network A, and second network interface connects network B, and then first network interface of the electronic switch of the half-duplex channel on another road connects network B, and second network interface connects network A.

Compared with prior art, two physics that the utility model proposes cut off network instant communication data ferry-boat transmitter and have following advantage: 1) make to be in the instant communication terminal realization communication of two physical isolation networks based on the XMPP agreement, remain the physical segregation state of two networks simultaneously, and the time-delay of communication was controlled in 10 seconds; 2) the utility model has adopted two half-duplex channel schemes that independence is anti-phase each other, has effectively improved ferry-boat speed, has prolonged the life-span of network electronic switch.

Description of drawings:

Fig. 1 is the utility model example structure schematic diagram.

Fig. 2 inserts the schematic diagram of two physical isolation networks for Fig. 1 embodiment.

Embodiment:

Below in conjunction with accompanying drawing embodiment is elaborated: Fig. 1～Fig. 2 is the structure chart of the utility model embodiment and the schematic diagram of access two physical isolation networks.Among the figure, a kind of two physics based on the XMPP agreement cut off network instant communication data ferry-boat transmitter, network A, network B, two independently reverse each other half-duplex channels of comprising mutual isolation, the PC that described half-duplex channel is made up of PC mainboard 1 and cpu chip 2, hard disk 3, and network electronic switch 4 is formed, described PC mainboard is that the P5QPL-AM of Asus, CPU are that Intel Duo 2E5400, hard disk are West Digital WD6400A, and the network electronic switch is that commercial product and liter reach HSD-I.The network electronic switch is connected on the PC by USB interface, and the network electronic switch is provided with first network interface, second network interface; First network interface of the electronic switch of described one road half-duplex channel connects network A, and second network interface connects network B, and then first network interface of the electronic switch of the half-duplex channel on another road connects network B, and second network interface connects network A.

The operation principle of this device is as follows: by the hard disk on the PC, come the message data of buffer memory ferry-boat.PC control HSD-I network electronic switch switches switching on and off of PC and two networks.PC is only connected with a network at synchronization.Here suppose that network A is an XMPP message source end, network B is an XMPP message destination.When PC and network A connection, in the XMPP message buffering formation from network A message is moved in the hard disk of PC sequentially, PC Control Network electronic switch cuts off and is connected with the network of network A then, connect and be connected with the network of network B, at last the message in the PC hard disk is moved to sequentially in the XMPP message buffering formation in the network B, finish secondary data ferry-boat.The utility model adopts two autonomous channel controlling schemes, the data ferry-boat of a direction of each passage control, and promptly a passage is responsible for the data ferry-boat of network A to B, and another passage is responsible for the data ferry-boat of network B to A.Control strategy of the present utility model is: network electronic switch normality is connected the source end; Pre-set the time of reception sheet, such as 5 seconds, after data were collected and finished, if timeslice does not arrive, then the stand-by period sheet finished diverter switch again; After timeslice finishes, if the local data that will not transmit then begin the monitoring of next timeslice, not the handover network electronic switch; If data output is arranged, then diverter switch is transmitted data.Transmitting time is not limit; Switch back immediately after being sent completely.Adopting this tactful purpose is in order to reduce the switching times of electronic switch, to prolong its life-span, and guarantees the timely transmission of data.

The foregoing description does not constitute restriction of the present utility model, and all employings are equal to the technical scheme that form obtained of replacement or equivalent transformation, all drop within the protection range of the present utility model.

Claims

1. a physics cuts off network instant communication data ferry-boat transmitter, comprises network A, the network B of mutual isolation, it is characterized in that also having two independently reverse each other half-duplex channels; The PC that described half-duplex channel is made up of computer motherboard and cpu chip, hard disk, and the network electronic switch is formed; The network electronic switch is connected on the PC by USB interface, and the network electronic switch is provided with first network interface, second network interface; First network interface of the electronic switch of described one road half-duplex channel connects network A, and second network interface connects network B, and then first network interface of the electronic switch of the half-duplex channel on another road connects network B, and second network interface connects network A.