CN2258329Y - Multi-functional telegraph grouping service apparatus - Google Patents

Abstract

The utility model relates to a multi-functional telegraph grouping service apparatus, which utilizes a packet switched data network to bear public telegraph communication. The multi-functional telegraph grouping service apparatus is a novel computer communication device formed by taking an X. 25 synchronous communication interface card and a multiplexing asynchronous serial interface card inserted in a 486CPU universal microcomputer and an expansion slot thereof as main hardware configuration and appending application software with complete functions. The device is used as a telegraph network to enter the terminal of a grouping network; the multi-functional telegraph grouping service apparatus not only can cross two different telecommunication service networks to carry out information transfer and conversion, but also can be serve as the managing and monitoring center of the whole telegraph networks. Generalizing and applying the device can completely replace and remove the existing public telegraphy physical networks, and can obviously improve each item of performance of public telegraph.

Description

Multifunctional telegram grouping service device

The utility model relates to a kind of novel telecommunication apparatus that utilizes Modern Telecommunication new technology, new business to carry the conventional telecommunications business, exactly, relate to a kind of multifunctional telegram grouping service device that utilizes packet-switch data network carrying public telegraph communication, belong to compunication and computer application equipment technical field.

Entered since the nineties, along with the development of the new communication technology and new communication service, the public telegram service of China shifts and is tangible downward trend to other communication modes in large quantities.Yet according to the national conditions of China, this communication service also will be kept period of suitable length, and some telegram business also has as greeting telegram, gift telegram, fresh flower telegram etc. to increase; Simultaneously, for the convenience of the user, dot number can not reduce.So existing huge public telegraph communication net is being kept a telecommunication service that traffic carrying capacity is little, show cost height, drawback that benefit is low day by day.How to transform public telegraph network, seek a kind of new efficient communication mode and carry public telegraph communication, become the big problem that China's posts and telecommunications industry faces.

In recent years, the data communication development rapidly, packet-switch data network (be called for short: Packet Based Network) the end of the year 1996 with the main small towns in above cities and towns, topped national county and developed regions, the structure of its network configuration and public telegraph network is closely similar, especially the communication mode of packet switched data communication, communication quality and reliability are all very superior, online communication capacity is also quite rich, the computer networking that can be the whole nation provides the good network condition, through big quantitative analysis, research, demonstration, it is feasible that public telegram service is loaded on the packet-switch data network by suitable equipment and mode.

The purpose of this utility model provides a kind of multifunctional telegram grouping service device that utilizes packet-switch data network carrying public telegraph communication, so that transform the current public telegraph network, final cancellation telegram physics net carries public telegram service fully by Packet Based Network.

The utility model is achieved in that the X.25 synchronous communication interface card that includes microcomputer, communicates by letter with packet-switch data network, adopt the multiplexed Asynchronous Serial Interface card of RS--232C standard interface and the interface box that is connected in series with it, it is characterized in that: described microcomputer is a mini-computer, its dominant frequency 〉=25M hertz, memory size 〉=640K byte, hard-disk capacity 〉=40M byte; In the expansion slot of this microcomputer, be inserted with one with single board computer control, directly set up the described multiplexed Asynchronous Serial Interface card of communication link by many special lines with each suboffice's telegraph terminal or asynchronous simulation communication terminal, and one with single board computer control direct that communicate by letter with Packet Switch Data Network, support the X.25 X.25 synchronous communication interface card of synchronous communications protocol.

Can be inserted with a Facsimile Interface Board in the described mini-computer expansion slot, this Facsimile Interface Board is set up communication link through the public telephone network and the facsimile machine of an intra-office.

The described X.25 synchronous communication interface card that is inserted in the microcomputer expansion slot, be by with the close coupling of bus with this microcomputer exchange message, support one, two, three layer of communication protocol of compunication and realize the communication interface card of information transmit-receive with Packet Based Network.

It is the product of VL2 that described X.25 synchronous communication interface card can be selected the model of Vanlink technical research institute of Beijing University of Post ﹠ Telecommunication development for use.

The described multiplexed Asynchronous Serial Interface card that is inserted in the microcomputer expansion slot is to be connected in series 1--8 asynchronous communication interface box, each interface box is provided with 8 RS--232C standard interface sockets, and these sockets are direct and the telegraph terminal of each suboffice or the communication interface card that asynchronous simulation communication terminal is set up communication link by special line separately.

The model that described multiplexed Asynchronous Serial Interface card and asynchronous communication interface box can select for use Taiwan Rui Wang Science and Technology Co., Ltd. to produce respectively is the product of A640E and A641.

Main feature of the present utility model is to realize the X.25 conversion of communication control procedure of the public telegraph network service regulation and the packet switching network.Of the present utility modelly be embodied as the transformation public telegraph network, provide a key equipment with Packet Switch Data Network carrying public telegraph communication, each innings enters the terminal of Packet Based Network to this equipment as telegraph network, being to cross over the bridge that is connected that two kinds of different telecommunication businesses networks (packet-switch data network and public telegraph network) information of carrying out transmits, also is the management and the control centre of whole public telegraph communication system.The utlity model has very strong communication function, both can connect Packet Based Network with different modes neatly, the friendly interface of public telegram service is arranged again.It not only can be by wherein X.25 synchronous communication interface card, X.25 communication control procedure and Packet Switch Data Network carry out the transmission that continues of telegraphic message to adopt CCITT; Also can directly be used as the local terminal, receive and dispatch telegram and manage business according to the public telegraph communication rules, also all kinds of telegraph terminals of each suboffice that can be administered by its multiplexed serial interface card tandem local exchange carry out telegraph communication, hold a concurrent post the monitoring management function of local local area network simultaneously.Like this, not only can make the various telegraph terminals on the existing telegraph network still can continue to use, thereby reduce the innovating reform expense; The difference of also visual its infield (as provincial capital, districts and cities, counties and districts etc.) is held a concurrent post the hierarchical monitoring management function.For example, the utility model device that is installed in the provincial capital central office just can have the telegraph switching management function, bears the hat stream verification of making a return journey.And the network management function of whole telegraph network.In the transformation public telegraphy network process of progressively implementing, it is important that the function of this communication speciality network service monitoring management shows especially.In a word, the utility model is the potential function that makes full use of every hardware configuration in the microcomputer, be aided with X.25 synchronous communication interface card and multiplexed Asynchronous Serial Interface card and interface box thereof, add multiple functional software development and a kind of novel computer communication equipment of constituting.Its design philosophy novelty is ingenious, and circuit hardware is simple in structure, and cost is low, helps popularizing.Use the utility model as more than 3000 the local side telegraphic instrument in the whole nation, just can realize the point-to-point communication of the whole network with Packet Switch Data Network as no level physical net, remove current public telegram physics net thereby replace fully, finish the technological transformation of public telegraph network.Both save the investment cost of network operation and transformation, cut operating costs, improved communication quality again.In fact, the public telegraph communication net that is made of the utility model is a kind of value-added service network that moves on packet-switch data network, can make full use of the perfect network communicating function of the packet switching network, make through every communication function of the public telegraph network transformed to increase significantly and improve than legacy network.

Specifically introduce structured flowchart of the present utility model, networking formation and between two heterogeneous networks, carry out the workflow block diagram that signal processing is changed below in conjunction with drawings and Examples.

Fig. 1 is hardware configuration composition frame chart of the present utility model and networking mode schematic diagram thereof.

Fig. 2 is the circuit block diagram of the synchronous communication interface card (VL2 card) that uses among the utility model embodiment.

Fig. 3 is multiplexed Asynchronous Serial Interface card (A640E card and A641 box) operation principle and the circuit block diagram that uses among the utility model embodiment.

Fig. 4 is the FB(flow block) that the information of the utility model transmitting-receiving telegram is transmitted handling procedure.

Referring to Fig. 1, the utility model is a kind of data processing, information conversion function of utilizing microcomputer, a kind of new types of communication devices--the multifunctional telegram grouping service device 1 of carrying public telegraph communication on Packet Switch Data Network, it includes microcomputer 2 and two plug-in cards assigning in these microcomputer 2 expansion slot: adopt the multiplexed Asynchronous Serial Interface card 3 of RS--232C standard interface and the X.25 synchronous communication interface card 4 of communicating by letter with public Packet Based Network 5.Wherein microcomputer 2 is a mini-computer, and its dominant frequency is answered 〉=25MHZ, memory size 〉=640K byte, hard-disk capacity 〉=40M byte.Usually select for use the microcomputer of intel486CPU chip to get final product, also can select more high-grade universal microcomputer for use, its configuration height, amount of capacity mainly look installation place, traffic carrying capacity and monitoring management amount size and select.Keyboard 21 in this microcomputer 2, display 22 and printer 23 both can be used as the local terminal operation of transmiting and receive telegrams, and also were the bookkeeping platforms of telegram local area network system.Floppy disc in the floppy drive 23 except the initial loading as microsystem drives, also can be used as the permanent memory of keeping on file of business datum.Wherein hard disk 24 also can be provided with database except that being used for storage that the utility model itself carries out information processing, conversion uses, be used for message weak point, keep on file for a long time, form keeps on file, business is kept on file etc.The 3000 multichannel messages that can adopt dynamic random length mode to reach half a year settling time on the hard disk form of keeping on file.Make the utility model not only can be used for receiving and dispatching telegram, the message that also can store half a year is kept on file, form is kept on file, rely on two platform microcomputer systems to carry out telegraph communication in present 256 tunnel telegram retransmission systems thereby thoroughly changed, form keeps on file then need add two hard disks in addition, and can only preserve the behindhand type in sky surplus in the of 20.On-line apparatus as communication, the utility model will be installed to more than 3000 offices in the whole nation, not only to realize the point-to-point transceiver task of these more than 3000 offices, also to bear the tandem shunting work of each local suboffice of local exchange and local terminal, so functional reliability of the present utility model requires than higher.For this reason, as the critical component in the utility model--hard disk 24 should adopt mirrored disk, with storage double information.And be placed in the utility model of provincial capital central office, and because of it also bears the network management function of the whole province, then should adopt the mirrored disk array that has hot plug, to be higher than original telegraph switching relay system equipment to guarantee its functional reliability.

Can match in the expansion slot of above-mentioned microcomputer 2 and assign a Facsimile Interface Board 10, utilize this Facsimile Interface Board 10 to set up communication link, the transmitting facsimile telegram through the public telephone network 6 and the facsimile machine 11 of an intra-office.

The X.25 synchronous communication card of in microcomputer 2 expansion slot, assigning 4, by single board computer control, this cartoon is crossed the close coupling with bus expansion slot, sets up information exchanging channel with microcomputer 2; Simultaneously directly setting up physical link with Packet Switch Data Network 5 again, enter Packet Based Network under the condition of supporting CCITTX.25 communication protocol, thereby can carry out the information transmission of packet data package between Packet Based Network 5 and microcomputer 2, also is that the transmitting-receiving of telegraphic message is handled.Because the packet switching network is supported one of compunication, two, three layers of (physical layer, link layer, network layer) agreement, can finish different model, speed, between each computer of rules, between computer and the terminal and message transmission between each terminal and exchange, and in the exchange transmission course, carry out error checking and correction, troubleshooting, exceed back multinomial functions such as communication, make this net in network configuration, communication mode, communication capacity and every technical performance index are (as transmission quality, network delay, blocking rate, error rate, node device availability factor etc.) all be better than public telegraph network greatly.So, utilize the utility model to enter the net loaded public telegraph communication of packet switching, not only method is feasible, and every communication performance index all can obviously be improved raising.For example, the utility model (for example one hour) opposite end server of communicating with this machine in during this timing at regular intervals sends flowing water end number, examines so that both sides carry out automatic gauging.Leak the receipts telegram as the opposite end, just the local terminal server is looked for the newspaper playback automatically; Leak to receive telegram as local terminal, the opposite end is playback automatically also, thereby stops to take place report lost, fail to report phenomenon.The X.25 synchronous communication interface card of selecting for use in the utility model embodiment 4 be Beijing University of Post ﹠ Telecommunication's ten thousand woods will Research on Communication Technology approved product, its model is VL2, its circuit block diagram is referring to Fig. 2.By this model interface card 4 can by the utility model directly draw one X.25 physical link be connected to public Packet Based Network 5 through modem, can insert at most on it 64 switched virtual circuit (SVC)s respectively with Packet Based Network on his server 1A of office, asynchronous emulation terminal 7C that local exchange is had jurisdiction over, block terminal 9A, 9B (wherein X.28 9A adopts that agreement networks through public telephone network 6,9B then adopts X.25 agreement network access) etc. terminal communicate, transmission rate can be 64Kb/s (referring to Fig. 1).This VL2 interface network interface card 4 is intelligent network interface cards, can finish three layer protocols X.25 on card, and its signal flow is as follows:

(1) network interface card is connected with the packet switching network by serialization controller SCC and RS--232 interface, is connected with PC bus (ISA) by parallel I/O interface.

(2) receiving course: the outside line input signal is sent into the SCC controller through the RS--232 interface, the HDLC frame is handled, and with dma mode correct frame is input to onboard memory.

(3) frame after the reception carries out the processing of link layer, packet layer protocol onboard, then correct grouping is delivered to PC host memory with the byte interrupt mode through the PC bus by parallel I/O interface.

(4) process of transmitting: the transmission information of PC mainboard is delivered to X.25 network interface card internal memory through the I/O bus in the byte interrupt mode.

(5) CPU will wait packet to be sent to carry out the processing of packet layer, link layer protocol on the plate.

(6) internal memory mails to outside line with dma mode through SCC interface, RS--232 interface on the transmission data slave plate that will handle well.

In the expansion slot of microcomputer 2, also be inserted with a multiplexed asynchronous interface 3, several multiplexed communications interface boxs 3--1 by being connected in series with it of this card 3 ... parallel a plurality of RS--232C standard interface sockets of installing are (as 3--11 on 3--8 and each interface box, 3--18 and 3--81,3--88), telegraph terminal 8A, 8B by each bar special line of assigning on these sockets and each suboffice or emulation asynchronous terminal 7A, 7B set up a plurality of communication links independently separately again, and its quantity can reach tens of roads.Multiplexing serial interface card 3 of intelligent multichannel that the Taiwan Rui Wang Science and Technology Co., Ltd. that selects for use among the utility model embodiment produces and the product type of communication interface box 3--1,3--8 are respectively A640E and A641, the operation principle circuit block diagram of these two approved products as shown in Figure 3, the former can be connected in series 1--8 interface box, each interface box is provided with 8 RS--232C sockets, like this, the multiplex interface card 3 that is made of these two parts just can be accepted nearly 64 telegram transmission special lines.Its operation principle is: the CPU processor on the utility model computer motherboard can directly carry out access to the double port memory on the A640E interface card, deposit in the double port memory being transferred to extraneous data, and the extraneous data of being received by the A640E card are taken away from double port memory.What just the CPU on the mainboard did is the memory read write operation, and needn't handle real asynchronous communication input-output operation, can save the CPU time of main frame.And the 80286CPU on the A640 card, then can have access to and want to be transferred to extraneous data from double port memory, await a favorable opportunity and be sent to the external world by the UART communication process chip on the A641 socket, simultaneously, 80286CPU is handled send the data of coming to from UART communication process chip, and then is stored in the double port memory to be given to the RS--232 communication interface of main frame.Adopt this card, can handle a byte at every turn, but can once receive and dispatch a data block (grouping bag) as microcomputer RS-232-C COM1/COM2.

Fig. 1 has also shown networking mode of the present utility model: each office must be provided with a station server 1, and it is soft, hardware configuration be decided on need.Every station server 1 corresponding Packet Based Network address, also corresponding simultaneously telegram office's name, these servers constitute a telegram wide area network with synchronous communication interface card 4 X.25 as operating platform, also are the virtual net of public telegraphy.Each suboffice that every station server tandem local exchange is had jurisdiction over all kinds of telegraph terminals 7,8,9,10, be the local net of public telegraphy of central station's terminaloriented of constituting each innings with this server 1.Concrete networking mode can have multiple: near the institute of suboffice local exchange can directly link to each other with multiplex interface card 3 of the present utility model by special line, as telegraph terminal 8A, 8B among Fig. 1 and asynchronous emulation terminal 7A, 7B; The suboffice far away apart from local exchange telegraph terminal can carry out Telnet with the networking of rules X.28 by phone dialing mode and connect, as the telegraph terminal 8C among the figure; Apart from local exchange institute of suboffice telegraph terminal far away, bigger as traffic carrying capacity, also available X.25 rules are carried out Telnet through Packet Based Network and are connected, as the asynchronous emulation terminal 7C among the figure; The server 1 of local exchange both can directly utilize its peripheral hardware (keyboard 21, demonstration 22, printer 23) transmitting-receiving message, also can articulate terminal at multiplex interface card 3 and do newspaper.

The course of work that the utility model carries public telegraph communication on public Packet Based Network transmitting-receiving telegraphic message is carried out conversion process can repeat no more here referring to its working procedure FB(flow block) shown in Figure 4.

The utlity model has very strong communication function and information processing translation function, now be summarized as follows respectively: 1. multiple terminals tandem diversity feature: because of the telegraph terminal numerous types in the existing telegraph network numerous and diverse, for reducing investment outlay, after public telegraphy was loaded into Packet Based Network, the said equipment still can continue to use.The utility model can carry out tandem to receiving and sending messages of various telegraph terminals by its multiplexed asynchronous interface card to be handled.2. local terminal transceiver func-tions, keyboard of the present utility model, display, printer when the monitoring management operation service is idle, can be used as terminal and transmit and receive telegrams.This function shows important in that office at county level is outstanding, can a tractor serves several purposes, improve utilization rate of equipment and installations.In order between more than 3000 offices in the whole nation, to realize point-to-point communication, the utility model utilizes prefix on 8 Chinese phonetic alphabet formation machines of two order offices of receiving office and transmitting station name code name to represent receiving office and transmitting station on the stepless Packet Based Network, and wherein office's name code name of receiving office and transmitting station is to adopt 4 initial consonants in the Chinese phonetic alphabet of four Chinese characters of its place province (municipality directly under the Central Government, autonomous region), city (county, district) place name to represent respectively.For example: the Jiujiang (office name code name: JXJJ) mail to Tong County, Beijing (office's name code name: a the general public telegram BJTX), the number line form of its message the third line is:

↓ZCZC?THAO?366?BJTX?JXJJ?2388?BCD322，

And as this message that mails to the Jiujiang from Tong County, Beijing just should for

↓ZCZC?THAO?366?JXJJ?BJTX2388?BCD322。

This method can significantly reduce original telegraph operator and carry on the back the workload that each office of telegram office name of note is registered.3. Telnet terminal transceiver func-tions: in the time of should not adopting special line to link to each other for telegraph terminal with server away from the office center, can be according to factors such as distinct device situation, traffic carrying capacity sizes, adopt rules X.28 or X.25 rules carry out the transceiver operation of Telnet through Packet Based Network.4. telegraph communication, the translation function of rules communication and two kinds of rules X.25: basic function of the present utility model is telegraph communication and Business Processing, for example concordance list being handled, built in the identification of the type reported, grade, route etc. hangs and removes to report stack, distribute, keep on file etc. by route, this is because its user interface is a telegraph terminal; Then carry out the exchange of telegraphic message mutually with rules X.25 between grouping service of each different offices, like this, must carry out the conversion of two kinds of rules and just can finish communication switching by synchronous communication interface card X.25.5. system monitoring management function:,, also need in time to understand the communication conditions of local exchange and each suboffice of subordinate even after all opening because the transformation of telegraph network is progressively implemented.The utility model is provided with the system monitoring hypervisor with each terminal of this local area network of collection monitoring, circuit working situation.6. the different levels management function of telegram VPN: because of telegram business is differentiated control, so the server of each office of provincial capital, districts and cities office, county telephone central office's level should still have original different levels monitoring management function.In addition, in the transient process of load transforming, the server of each provincial capital central office should possess the function of alternative telegraph switching relay system, and this province is gone out the processing of transferring of province's telegram, does not still carry out telegraph communication by the transit telegram rules so that the Buddhist monk cancels the province of telegraph switching relay system.In addition, the server of each provincial capital central office also should have the Network Management Function of the whole network, so that coordinating and unifying managing virtual telegraph network better.For example: after the whole network is realized with the utility model carrying public telegraph communication, the General Administration of Telecommunications of the Ministry of Posts and Telecommunications needs only the server by network management center, assign the relevant circuit that increases, deletes, perhaps increase, delete, change office's name, command operations such as dynamic acquisition circuit state are after the server of each provincial capital central office, the whole nation is received this network management information, just can bear webmaster work inside the province automatically, carry out the operation of revising this circuit and the relevant circuit of the whole province, realize the whole network co-ordination, and increase work efficiency greatly.The multiple application software realization of establishment under the UNIX operating system environment of above-mentioned various function, the utility model.

The utility model has adopted 486 CPU mini-computers of IBM Corporation, and (model is PC150: dominant frequency 66MHZ, internal memory 8M, hard disk 500M) and above-mentioned two kinds of embodiment interface cards trial-produce many in model machine successfully, and the performance test of multiple function has been carried out in networking.Result of the test shows that design of the present utility model is successful, can realize goal of the invention, provides a visual plant that has much popularizing application prospect for transform existing public telegraph network in China.

Claims (6)

1. multifunctional telegram grouping service device that utilizes Packet Switch Data Network carrying public telegraph communication, X.25 the synchronous communication interface card of include microcomputer, communicating by letter, the multiplexed Asynchronous Serial Interface card that adopts the RS--232C standard interface and the communication interface box of serial connection thereof with packet-switch data network, it is characterized in that: described microcomputer is a mini-computer, its dominant frequency 〉=25M hertz, memory size 〉=640K byte, hard-disk capacity 〉=40M byte; In the expansion slot of this microcomputer, be inserted with one with single board computer control, by many special lines directly and each suboffice's telegraph terminal or asynchronous simulation communication terminal set up the described multiplexed Asynchronous Serial Interface card of communication link; And one with single board computer control directly communicate by letter with Packet Switch Data Network, support the X.25 X.25 synchronous communication interface card of synchronous communications protocol.

2. multifunctional telegram grouping service device as claimed in claim 1 is characterized in that: can be inserted with a Facsimile Interface Board in the described mini-computer expansion slot, this Facsimile Interface Board is set up communication link through the public telephone network and the facsimile machine of an intra-office.

3. multifunctional telegram grouping service device as claimed in claim 1, it is characterized in that: the described X.25 synchronous communication interface card that is inserted in the microcomputer expansion slot, be by with the close coupling of bus with this microcomputer exchange message, support one, two, three layer of communication protocol of compunication and realize the communication interface card of information transmit-receive with Packet Based Network.

4. as claim 1 or 3 described multifunctional telegram grouping service devices, it is characterized in that: it is the product of VL2 that described X.25 synchronous communication interface card can be selected the model of Vanlink technical research institute of Beijing University of Post ﹠ Telecommunication development for use.

5. multifunctional telegram grouping service device as claimed in claim 1, it is characterized in that: the described multiplexed Asynchronous Serial Interface card that is inserted in the microcomputer expansion slot is to be connected in series 1--8 asynchronous communication interface box, each interface box is provided with 8 RS--232C standard interface sockets, the special line of these sockets by separately can be directly and the telegraph terminal of each suboffice or asynchronous simulation communication terminal set up the communication interface card of communication link.

6. as claim 1 or 5 described multifunctional telegram grouping service devices, it is characterized in that: the model that described multiplexed Asynchronous Serial Interface card and asynchronous communication interface box can select for use Taiwan Rui Wang Science and Technology Co., Ltd. to produce respectively is the product of A640E and A641.

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