CN1212559A - Data communication system using telephone exchange network and its application - Google Patents
Data communication system using telephone exchange network and its application Download PDFInfo
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- CN1212559A CN1212559A CN 98111087 CN98111087A CN1212559A CN 1212559 A CN1212559 A CN 1212559A CN 98111087 CN98111087 CN 98111087 CN 98111087 A CN98111087 A CN 98111087A CN 1212559 A CN1212559 A CN 1212559A
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Abstract
The data communication system using telephone exchange network includes a called machine (main machine) and its central control unit and several calling machines (user terminals). It is characterized by that the digital information which needs to be transmitted is stored in the calling machine previously, then a voice channel is set up between the calling machine and called machine by means of dialling, and the digital information needs to be transmitted is passed through D/A converter circuit, and converted into analog signal, then passed through telephone network, transmitted and passed through the A/D converter circuit of communication trunk circuit of called machine, and converted into the digital signal, and said digital signal is received by called machine, and at this time the digital information of the called machine also can be reverse-transmitted to the calling machine through the above channel.
Description
The present invention relates to a kind of data communication system, particularly a kind of telecommunication system that utilizes telephone-switching network and in the application in shares trusting inquirying transaction field.
The existing system that utilizes telephone-switching network to carry out data communication generally all is based upon on the basis of modulation-demodulation technique, the caller machine is called out called machine by modulator-demodulator through telephone-switching network, called machine promptly attempts to set up connection by modulator-demodulator after receiving bell signal, after confirming to connect baud rate and handshake, formally set up communication, the caller machine can transfer to called machine by modulator-demodulator through telephone-switching network with data then, and existing facsimile machine and computer interconnection communication all are this modes.Because setting up communication by modulator-demodulator between caller machine and called machine needs 15 seconds time at least, thereby this mode is suitable for the bigger occasion of each communication information amount, but have only the very little occasion of and the more and each communication information amount of calling party's quantity (as stock inquiry, the each communication of transaction system only several seconds) for the callee, this mode to set up communication time long.
Purpose of the present invention is with regard to being at the present situation of above-mentioned prior art and provide a kind of calling party's of being suitable for quantity more and the data communication system that utilizes telephone-switching network that each communication information amount is very little.
Another object of the present invention is the principle of the above-mentioned data communication system of a kind of foundation is provided and the operating cost set up is low, customer volume is big, each short shares trusting inquirying transaction system of consignment trade time.
The object of the present invention is achieved like this: utilize the data communication system of telephone-switching network to include a called machine (main frame) and centralized control unit and several caller machines (user's terminal), described centralized control unit is made of a master control coordination circuits and a plurality of communication repeat circuit, connect main frame and multichannel ordinary telephone line respectively, described caller machine (user's terminal) then directly is connected on the ordinary telephone line, process of data communication between called machine and the caller machine is: the digital information that the caller machine will transmit in advance stores, set up speech path through dialing and called machine then, the digital information that will transmit becomes analog signal by the D/A switch circuit conversion after the telephone network transmission again, mould/number conversion circuit conversion through the communication repeat circuit of called machine becomes digital signal to be received by called machine again, and this moment, the digital information of called machine also can be by above-mentioned transmission channel reverse transfer to the caller machine.
Described D/A, mould/number conversion can be adopted double-tone analog signal DTMF, sinusoidal wave frequency modulation FSK or square-wave pulse-signal transmission forms such as sine wave signal P-FSK frequently.
Compared with prior art, the present invention has omitted modulation, the demodulating process of digital signal, not only hardware cost reduces, and the connection time also only depend on the delivery time of telephone ring signal, the communication system very little for each communication information amount can significantly reduce the online time, thereby number of users can significantly increase, on the other hand, owing to be to utilize telephone-switching network to carry out communication, thereby system scope is big, and the user can be dispersed in the whole city even the whole nation everywhere; The present invention can be widely used in stock information inquiry and transaction system, bank card is authorized automatically and inquire about blacklist system, tax invoice and follow the trail of inquiry system and centralized control formula public telephone management system etc. automatically.
Description of drawings:
Fig. 1 is a system principle diagram of the present invention.
Fig. 2 is the schematic block circuit diagram of a kind of host center control unit of the present invention.
Fig. 3 is the schematic block circuit diagram of another kind of host center control unit.
Fig. 4 is the communication repeat circuit theory diagram in the host center control unit of the present invention.
Fig. 5 is a user side machine circuit theory diagram of the present invention.
Fig. 6 is applied to the instantiation of shares trusting inquirying transaction system for the present invention.
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, caller machine (being user's terminal) (6) directly is connected to telephone-switching network (5) by ordinary telephone line, called machine (being main frame) (1) is connected to telephone-switching network (5) by the centralized control unit (2) that is made of a master control coordination circuits (3) and a plurality of communication repeat circuit (4) through the multichannel ordinary telephone line, process of data communication between user's terminal (6) and the main frame (1) is: with reference to Fig. 4, Fig. 5, the digital information that user's terminal (6) will transmit in advance stores, set up speech path through dialing and main frame (1) then, the digital information that will transmit converts analog signal to by D/A switch circuit (67) after telephone network (5) transmission again, convert digital signal to through the mould/number conversion circuit (44) of the communication repeat circuit (4) of main frame again and received by main frame (1), the digital information of main frame this moment (1) also can be by above-mentioned transmission channel reverse transfer to user's terminal (6);
Described D/A, mould/number conversion can be adopted double-tone signal transmission forms such as analog signal DTMF, sinusoidal wave frequency modulation FSK frequently, but for making best results of the present invention, with square-wave pulse-sine wave signal transmission means of adopting us to be referred to as P-FSK is the best, and we have proposed patent application simultaneously this transmission means.
Main frame of the present invention (1) can adopt computer or computer network, carries out on-line communication by special centralized control unit (2) through telephone network (5) and special user's terminal (6).
As shown in Figure 2, schematic block circuit diagram for a kind of host center control unit (2), the main single-chip microcomputer (22) that adopts is as governor circuit, connect wherein one tunnel communication repeat circuit (4) through data/address bus (24) and address bus (23) according to bell signal on one side, through serial/parallel mouthful communicating circuit (21) and main frame (1) connect on one side;
As shown in Figure 3, schematic block circuit diagram for another kind of host center control unit (2), also be to adopt single-chip microcomputer (22) as governor circuit, communication repeat circuit (4) directly links to each other with main frame (1) through serial/parallel mouthful of communicating circuit (21) by data/address bus (24), and single-chip microcomputer governor circuit (22) is controlled this road communication repeat circuit (4) according to bell signal and connected through serial/parallel mouthful of communicating circuit (21) and main frame by data/address bus (24).
As shown in Figure 4, theory diagram for communication repeat circuit (4), with the core of single-chip microcomputer (41) as control circuit, link to each other with master control coordination circuits (3) by address bus (23) and data/address bus (24) on one side, through dislodging machine control, ringing-current reception and D/A switch circuit (43) and mould/number conversion circuit (44) by telephone interface circuit (42) be connected to telephone network (5) on one side.
As shown in Figure 5, schematic block circuit diagram for user's terminal, also be to be core with single-chip microcomputer (62), be connected with needed display module circuit (63), operation push-button circuit (64) and information-storing device (65) when using on one side, through dislodging machine control, ringing-current reception and D/A switch circuit (67), mould/number conversion circuit (66) by telephone interface circuit (61) be connected to telephone network (5) on one side.
Because each modular circuit of above-mentioned theory diagram all can adopt prior art, therefore launch narration no longer in detail.
The present invention of being shown in Figure 6 is applied to an instantiation of shares trusting transaction system.
As everyone knows, stock invester's stock exchange mainly is divided into inquiry and two kinds of behaviors of buy and sell orders of market, at present domestic aspect shares trusting transaction and market reception, have by the place branch in (in stock trader's the business hall) and two classes outside the venue: the chamber, big-and-middle family in the field can realize on computers that various market inquire about and the Stock Trading consignment trade, the casual household then carries out market inquiries by large-screen and by filling out single trust at business hall, more advanced also useful magnetic card machine or keyboard carries out the Stock Trading consignment trade, then must pass through teletext outside the venue, notify from a phone call beeper, modes such as computer are carried out the market inquiry, and entrust by phone, or, all must pay extra expensive cost with the computer equipped with a modem online trust of dialling; Conclude the business for Off-Floor Order; so far there are not a kind of low cost, highly reliable system; though existing phone entrusts cost low; but under voice suggestion, carry out the button input and taken a large amount of time; thereby user more than causes blocking through regular meeting; it is obstructed to dial, and has lost the meaning of timely consignment trade.
Can realize that just in time a kind of operating cost is low, customer volume big, each short shares trusting inquirying transaction system of consignment trade time and use data communication system of the present invention.
As shown in Figure 6, the shares trusting inquirying transaction system comprises a trusting inquirying processor that links to each other with securities dealer's network system (being main frame), the one system's tandem equipment with multichannel access signalling channel that connects with telephone network (is centralized control unit, it constitutes with reference to Fig. 1～Fig. 4), and a user side trusting inquirying machine that links to each other with telephone network (it constitutes with reference to Fig. 5); After user side trusting inquirying machine stores information such as user-selected inquiry/consignment trade function, corresponding stock classification, number of transaction and the amount of money in advance, automatically set up communication state with phone dialing mode and main frame, wait that with storing in advance the information of sending out sends main frame to by telephone network, main frame is passed corresponding reply message back user side trusting inquirying machine after reception information, in a single day transfer of data finishes promptly broken string automatically.
Described telephone network message transmission can adopt double-tone frequently analog signal DTMF mode, sinusoidal wave frequency modulation FSK mode and square-wave pulse-sine wave signal P-FSK mode that we apply for a patent in addition; The special-purpose stock handset that described user side trusting inquirying machine can adopt us to apply for a patent in addition also can adopt the computer that is inserted with corresponding shares trusting inquirying card and software kit is housed; For making user of additions and deletions in real time of system and treatment system data, can increase a computer that links to each other with securities dealer's network system again, as user data, system data processor.
Compared with prior art, this shares trusting inquirying transaction system user side trusting inquirying machine and main frame it Between directly carry out computer-dataphone and do not have other non-effective transmission informations such as voice, make junction line in busy Be at full capacity transmission information, the effective information transfer rate improves greatly, namely hangs up in case communication is complete Be in the idle waiting state, thus the online time short, be operable to the power height, thereby both can roll up the user Number can not cause again communication lines to block, and where square tube is crossed a call gate to common stock invester local official on the scene can carry out The treatment of room for big clients is enjoyed in visual all kinds of inquiries and all kinds of trust, and the securities dealer then uses effect because of junction line Rate on average improves 40 times than phone way of bailment, thereby the initial stage input that can reduce hundreds of thousands even nearly 1,000,000 reaches The Monthly Fee of every month several ten thousand yuan even hundreds of thousands unit is simultaneously owing to no longer exist to entrust and mistake and phone is entrusted resistance The plug phenomenon, the casual household's trading volume percentage that is undertaken by native system will increase substantially, thereby also make total conclusion of the business Amount improves.
Claims (5)
1. data communication system that utilizes telephone-switching network, it is characterized in that including a called machine (main frame) and centralized control unit thereof and several caller machines (user's terminal), described centralized control unit is made of a master control coordination circuits and a plurality of communication repeat circuit, connect main frame and multichannel ordinary telephone line respectively, described caller machine (user's terminal) then directly is connected on the ordinary telephone line, process of data communication between called machine and the caller machine is: the digital information that the caller machine will transmit in advance stores, set up speech path through dialing and called machine then, the digital information that will transmit becomes analog signal by the D/A switch circuit conversion after the telephone network transmission again, mould/number conversion circuit conversion through the communication repeat circuit of called machine becomes digital signal to be received by called machine again, and this moment, the digital information of called machine also can be by above-mentioned transmission channel reverse transfer to the caller machine.
2. the data communication system that utilizes telephone-switching network as claimed in claim 1 is characterized in that described D/A, mould/number conversion employing double-tone analog signal DTMF mode frequently.
3. the data communication system that utilizes telephone-switching network as claimed in claim 1 is characterized in that described D/A, mould/number conversion adopt sinusoidal wave frequency modulation FSK mode.
4. the data communication system that utilizes telephone-switching network as claimed in claim 1 is characterized in that described D/A, mould/number conversion employing square-wave pulse-sine wave signal P-FSK mode.
5. application such as the described data communication system of claim 1 to 4 and the shares trusting transaction system set up, it is characterized in that comprising a trusting inquirying processor that links to each other with securities dealer's network system (being main frame), one the system's tandem equipment (being centralized control unit) that connects with telephone network, and a user side trusting inquirying machine that links to each other with telephone network with multichannel access signalling channel; After user side trusting inquirying machine stores information such as user-selected inquiry/consignment trade function, corresponding stock classification, number of transaction and the amount of money in advance, automatically set up communication state with phone dialing mode and main frame, wait that with storing in advance the information of sending out sends main frame to by telephone network, main frame is passed corresponding reply message back user side trusting inquirying machine after reception information, in a single day transfer of data finishes promptly broken string automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111087 CN1212559A (en) | 1998-09-13 | 1998-09-13 | Data communication system using telephone exchange network and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111087 CN1212559A (en) | 1998-09-13 | 1998-09-13 | Data communication system using telephone exchange network and its application |
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| Publication Number | Publication Date |
|---|---|
| CN1212559A true CN1212559A (en) | 1999-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111087 Pending CN1212559A (en) | 1998-09-13 | 1998-09-13 | Data communication system using telephone exchange network and its application |
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| CN (1) | CN1212559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000070851A1 (en) * | 1999-04-15 | 2000-11-23 | Xuelei Pang | Self-assistant tour guide system and method of the same |
-
1998
- 1998-09-13 CN CN 98111087 patent/CN1212559A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000070851A1 (en) * | 1999-04-15 | 2000-11-23 | Xuelei Pang | Self-assistant tour guide system and method of the same |
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Owner name: BEIJING HENGJIWEIYE ELECTRONIC PRODUCT CO., LTD Free format text: FORMER OWNER: SHENZHEN CITY HENGJIWEIYE INFORMATION TECHNOLOGY CO., LTD. Effective date: 20030724 |
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