JPS5839138A - Data transfer method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a data transfer method, and a data transfer method in a data transfer system that transfers data via 21 communication lines consisting of 2 communication paths capable of 4IK bidirectional communication. .

厠1- is a diagram showing the product of ζ and U in a conventional data transfer method. 11th! ! il one data processing device 1
and 2 are communication channels 31 and 3♀ capable of bidirectional communication.
Second army communication episode Ii composed of Yoruru! i! Via 3,
Executes mutual K data transfer. Second communication episode! 13, the data transmitted from the data processing device @1 is transmitted to the data processing device 2 via the communication channel 31, while the data transmitted from the data processing device 2 is transmitted to the data processing device 2 via the communication channel 31.
2 to the data processing device 1. Therefore, the amount of data that can be transferred from the data processing device 1 to the data processing device 2 via the duplex communication line 3 is determined by the communication speed of the communication path 31''!
1, and if a failure occurs in the communication path 31, normal data transfer from the data processing device 1 to the data processing device 2 becomes impossible.

It is an object of the present invention to eliminate the drawbacks of the conventional data transfer methods as described above, increase the permissible data transfer amount of a duplex communication line as necessary, and increase the amount of data transfer that is required for a duplex communication line even when a communication line is damaged. The goal is to realize a means to guarantee the transfer of data.

The purpose of this is to use two communication paths that allow bidirectional communication. In a data transfer system that transfers data via a duplex communication line, an identification means for identifying the type of transferred data is provided at the data sending end and the data receiving end, and an identification means corresponding to the type identified by the job-specific means is provided. A switching means for switching the two communication channels in the same direction, and data to be transferred in parallel via the two communication channels set to be switched by the switching means is converted at the transmitting end and inversely converted at the receiving end. This is achieved by providing a processing means for

An embodiment of the present invention will be described below with reference to FIGS. 2 to 7. FIG. 2 is a diagram showing a data transfer system according to an embodiment of the present invention, FIG. 3 is a diagram showing an example of the configuration of the data transfer control iron in FIG. 2, and FIG. This is a diagram showing an example of the configuration of changing the image direction and rearranging the bales in gl! 5
Figures 7 to 7 are diagrams showing examples of various data transfer formats in Figure 2. Note that numerals 91 indicate the same objects throughout the figures. Further, in FIGS. 2 to 7, only data transfer from data processing device 1 to data processing device 2 is shown.

The difference between FIG. 2 and FIG. 1 is that the connection points between the data control devices 1 and 2 and the duplex communication line 3, the data transfer control devices 6 and 7, and the two-way variable station devices 40 and 50 are different from FIG. The reason is to do something. The data transfer control device 6 is PR3
As shown in FIG.
2. Switching circuit 63? and a processing circuit 64. Note that the data transfer control device 7 also has a similar configuration.

Further, as shown in FIG. 4, the bidirectional modulation/demodulation device 40 includes a modulator 4l and a demodulator 42 connected to the communication path 3l via switching contacts 45 and 46, and a modulator 4l and a demodulator 42 connected to the communication path 32 via switching contacts 47 and 48. It is composed of a connectable transformer 43 and a tuner 44. Note that the bidirectional modulation/demodulation device 50 also has a similar structure. Normally, the metal switching contacts 45 to 48 are in a silent state, and in the bidirectional modem 40, the inflector 41 is connected to the communication path 31, the demodulator 44 is connected to the communication path 32, and the bidirectional modem 50 is connected to the inverter 41. The communication path 32 is connected to the communication path 32 and the change device 51 . In such a state, when the transmission data D1 of the first classification shown in FIG. If 61 is the ml type of the transmission data D1, the overconfidence method is %11! The identification result is transmitted to r62 and the transmission data DI is transmitted to processing circuit 64. Including. The ID tag D1 is composed of three blocks A, B and C. The control circuit &}62 processes the data of the lead 1 communication system which notifies the data Matsugome control system 7 to transmit data D1 separately from the data D1.
4. The processing circuit 64 transmits the t4↓1 {i method data to the image direction change/replacement lens 40 via the transmission line 81f:. mlml1;ial{# The system data is converted by the modulator 4l, transmitted to the bidirectional conversion relay 4 device 50 via the communication 1d connection 31, and then returned to the straw feeder 546 and transmitted. Q1-Yu transfer transmitted to data transfer control device 7 via y9h? In the III control device 7, the 11-11 data is transmitted to the 120-120-11 control circuit 72 via the processing circuit 74{C. The communication system control circuit 72 identifies from the female-biased striped data fC that the transmitted data from the data processor 1 is ◇ξ in the hanging IB, and connects the bidirectional modem 50 to the cut line 7l3. Switching contact 5
! The communication method confirmation data is transmitted to the processing circuit 74 without operating any of sections 5 to 8. The processing circuit 74 transmits the communication system confirmation data to the modulator 51K of the bidirectional modem f50 via the signal line 92. The communication method confirmation data is modulated by the modulator 51, transmitted to the time modulation/demodulation W40 via the communication path 32, and rewritten to the demodulator 44, and then transmitted to the data transfer control device 6 via the signal @82. It is transmitted to the processing circuit 64 of. The processing circuit 64 transmits the received communication method confirmation data to the communication method control circuit 62K, and the communication method control circuit 62 learns that the transfer of the first communication method data has been confirmed by the data transfer control device t7. When the switching circuit 63 operates the switching contacts 45 to 48 of the bidirectional modem 40, the processing circuit 64 starts transferring the transmission data DI.The processing circuit 64 transfers the cough transmission data D1 to the first transmission data. It is sent to the signal line 81 as D2.

The first transfer data D2 is transmitted to the processing circuit 74 of the data transfer control device 7 through the transformer 41, the communication path 31, the demodulator 54, and the signal line 9l9. The processing circuit 74 transmits the received first transfer data D2 to the data processing device 2 via the identification circuit 71 as the received data D3. Then, the data is transferred back as first transfer data D2 only via the communication path 31, and received as received data D3. Next, data processing device 1 is shown in FIG. When the second type of transmission data Dll is transmitted to the data transfer control device 6, the identification circuit 61 identifies the inactive transmission data Dll as the second type, and transmits the classification result of the communication system control circuit 62K to the transmission data Dll. The communication system control circuit 62 transmits the second communication system data that notifies the transmission of the fg2Ni transmission data Dll to the processing circuit 64 through the signal line 81, modulator 41, communication path 31, demodulator 54, and signal line 9l. The data is transmitted to the processing circuit 74 of the data transfer control device 7 via the data transfer control device 7. Processing circuit 7
4 receives the second communication method data from the communication method control circuit 7.
2 - and the communication method control circuit 72 taste data processing m
The data transferred from the scissor holder 1 is identified by @2 types + 6 types, and after transmitting the communication method confirmation data to the communication path 32 via the processing circuit 74, the signal @92 and the modulator 51, the switching circuit Switching contacts 55 and 56 of the 73K bidirectional modem 50 are activated. On the other hand, communication method confirmation data transmitted from the communication path 32 to the data transfer control device 6 via the demodulator 44 and the signal line 82 is guided to the communication method control circuit 62. After receiving the cough communication method confirmation data, the nine communication method control circuit 62 switches the bidirectional modem 40 to the switching circuit 63.
After actuating switching contacts 47 and 48, the treatment nm+
starts the transfer of the transmission data Dll. As a result, the common value path 32 connected to the modulator 43 and the demodulator 52 becomes capable of transferring data from the data processing device 1 to the data processing device 2, similarly to the communication path 31. The processing circuit 62 separates the second type of transmission data Di1 into three blocks L, M, and N, of which blocks L and N constitute the younger brother 1 transfer data D21 and send it to the signal line 81. It is also sent out to the signal line 82 as the second transfer data D22 of the push-pull MFi. 1st transfer group D21 transformer 41, communication path RL, demodulator 54
and signal III91 to the logic circuit 74 of the data transfer system 7, and the second transfer data D2
2 is an IA signal which is transmitted to the processing circuit 74 via the inflector 43, the transliterator 43, the detector 52, and the signal line 2.
The m circuit 74 receives the received first transfer data D21 and summary 2.
Combine the transferred data D22 as separate data,
Block L, M,? and N are transmitted to the data processing unit 3[1k[2] via the internal circuit 7l.

When the first transfer data D21 and the NZ transfer data D22 have been sent, the overconfidence method control circuit 6
2 and both F! at switching time jl68! a modem device 4
The switching contacts 47 and 48 of 0 are restored, and the receiving data is transmitted to D31t. Restoring the disconnected l# contacts 55 and 56. After that, the response signal and the like sent back from the data M payment system 2 to the data processing device 1 are transferred via the communication path 32. Above κ, the second type of transmission data iJ21 is the dead communication line 3.
Since the data is divided and transferred over the single signal paths 31' and 32, the permissible amount of data transfer from the data 4m device 1 to 2 is significantly increased. Next, the data processing device 1 car et al.
When the third type of transmission data D12 shown in the figure is transmitted to the data transfer control device 6, the identification circuit 61 identifies the transmission data 12 as third type, and sends the identification result to the communication system control circuit 62. Further, the conduction data DI2 is transmitted to the processing circuit 64. The communication control circuit 62 transmits the 31st separate transmission data D1.
The third communication method data notifying the transmission of 2 is sent to the signal line 81.
, modulator 41, communication path 31, demodulator 54 and signal line 9
1 is transmitted to the processing circuit 74 of the data transfer control device 7. When the processing circuit 74 transmits the received third communication method data to the communication method control circuit 72, the communication method control circuit 72 transfers the data transferred from the data processing device [1 to g3
The demodulator 52 is connected to the communication path 32 after transmitting communication system confirmation data to the data transfer control unit It6 in the same process as in the second type of data transfer. Further, the communication method control circuit 62 which has received the communication method data D12 also connects the communication path 32K modulator 43, and then causes the processing circuit 64 to start transferring the transmission data D12. The processing circuit transfers the transmission data D12 to the signal lines 8l and 82K, and the first transmission data D23 and the second transmission data D2.
Send as 4. ＃． The first transfer data D23 and the second transfer data 24 are transmitted to the processing circuit 74K of the data transfer control device 7 via the communication paths 3L and 32, respectively. The processing circuit 7- compares the received first transfer data D23 and second transfer data D24 as data of the third type, and after confirming that both data D23 and D24 match, identifies them as received data D32. The data is transmitted to the data processing device 2K via the circuit 7l. After completing the above process, the data transfer control devices 6 and 7 return the modulators connected to the communication P32 to the original state K. According to the above, the third type of transmission data D12 is the duplex communication line 30 and the double communication channel 31.
and 32 at the same time ●Comparison is done, so
Highly reliable data transfer can be realized ● As is clear from the above explanation, according to the present embodiment κ, the data transfer control device 6 and 7 #i identify the type of data to be transferred, and in the case of the first type, maintains the communication directions of the communication paths 3l and 32 of the duplex communication line 3 in the opposite direction κ to enable normal full-duplex communication, and in the case of the second type, the communication directions of both communication paths 3l and 32 are maintained in the opposite direction κ. If there is a match, the one-way permissible data transfer amount of the duplex communication circuit M3 is increased, and the third
In the case of different types, highly reliable transfer is possible by transferring the same data in parallel to the communication channels 31 and 32 with the same communication direction.

It should be noted that the enlarged drawings from #I2 to FIG. Although many modifications may be considered, the effects of the present invention will not change in any case.

Separation of Ota Ml type to M3 type, transmission guta Di%
It is not limited to implementation for each of Dll and D12, but it is also possible to send dedicated classification data independently of the transmission data pi, nxx and DI2 for identification. Even in such a case, the effects of the present invention remain the same. Furthermore, it goes without saying that the type of transmitted data and the corresponding transfer format are not limited to those shown in the figures. As described above, according to the present invention, data is transferred via the duplex communication line. The data transfer system adopts various data transfer formats depending on the type of data to be transferred, and automatically selects the transfer format suitable for the data to be transferred, such as transferring a large amount of data or transferring data that requires high reliability. It is possible to select.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a conventional data transfer system, FIG. 2 is a diagram showing a data transfer method according to an embodiment of the present invention, and FIG. 3M is a configuration of a data transfer control device corresponding to FIG. 2. Figure 4 is a diagram showing a configuration example of the bidirectional modulation/demodulation device in Figure 2, Figure 5 is a diagram showing the first type data transfer type dog in Figure 2, and Figure 6 is a diagram showing an example of the configuration of the bidirectional modulation/demodulation device in Figure 2. FIG. 7 is a diagram showing the second type data transfer format 1, and FIG. 7 is a diagram showing the third type data transfer format in FIG. In the figure, 1 and 2 are data processing devices, 3 is a duplex communication line, 3゛1 and 32 & communication path, 41, 43, 5l
and 53 is a modulator, 42, 44, 52 and 54 are demodulators, and 40j? and 5o are bidirectional modifiers, 6 and 7 are data transfer control devices, 61 and 71 company identification circuits,
62 and 72 are communication system control circuits, 63 and 73 are switching circuits, 64 and 74 are Fi processing circuits, 81, 82,
91 and 92 signal lines %D1%Dll and D12 are transmission data, D2, D21 and D23 are first transfer data, D22 and D24tj Cocoon 2 transfer data, D3, ゛D31 and D32 are reception data, A, BSC, L ,M
%N%X, Y, and 2 indicate data blocks ● -211-

Claims (1)

[Claims] In a data transfer system that transfers data via a duplex communication line configured with two communication channels capable of bidirectional communication, the type of data transferred is separated into the sending end and the sending end of the above-mentioned device. Identification of relatives, means of armpit separation, and gentle separation of internal organs
Correspondingly, there is a switching means ε for switching the communication direction of the two channels in the same direction κ, and a switching means sets the switching means to convert the data transferred in parallel via the two channels at the transmitting end and transmitting the data to the receiving end. This data transfer method is characterized by having a processing means for inversely converting the data.