JPH0563701A - Communication processing system - Google Patents

Abstract

PURPOSE:To attain transmission of lots of data by confirming the communication capability of a transmission destination equipment in the system in which plural communication channels are established in time division so as to revise the time allocated to each channel depending on the capability. CONSTITUTION:When a data transmission request to receivers 110, 112 is given to a transmitter 103 from host computers(HC) 101, 102, a CPU 106 establishes a channel between the transmitter 103 and the receivers 110, 112. Then the transmission data from the HC is being stored in buffers 104, 105, while the CPU 106 checks a data speed receptible by the receivers 110, 112 to set the time share in response to the capability and to write the data to a RAM 108. Then the CPU106 sends an ID number of a receiver and data in the buffer via a transmitter 109. When a receiver finds out its own IC number, the CPU 106 sends the data stored in the RAM 108 via the transmitter 109. Thus, efficient data transmission is attained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication processing system, and more particularly to a communication processing system for wirelessly transmitting and receiving data used in a computer.

[0002]

2. Description of the Related Art Conventionally, one channel has been allocated between devices that transmit and receive data.

[0003]

However, the above-mentioned conventional technique has the following drawbacks.

[0004] One is that if there are a large number of transmitters / receivers for the channels to be used, the channels cannot be allocated and transmission / reception cannot be performed. The difference in capabilities is that you have to adapt to the least capable device.

The present invention has been made in view of the above-mentioned drawbacks of the conventional example, and an object thereof is communication in which more data can be transmitted by one channel and an economical merit can be obtained. The point is to provide a processing system.

[0006]

[Means for Solving the Problems]
To achieve the object, a communication processing system according to the present invention controls a channel for data transmission / reception by a channel for channel control, and establishes a plurality of communication channels on one channel in a time division manner. In the above, there is provided a confirmation means for confirming the communication capability of the transmission destination device, and a changing means for changing the time assigned to each channel based on the confirmed communication capability.

[0007]

According to this structure, the channel can be controlled in accordance with the capability of the other party for transmission and reception, and appropriate time division control can be satisfactorily performed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. <First Embodiment> FIG. 1 is a block diagram showing the arrangement of a communication processing system according to the first embodiment of the present invention. In the figure, 101 is a host computer, 102 is a host computer, 103 is a transmitting device, 104 is a buffer for temporarily storing the data sent from the host computer 101, 105 is a buffer for the host computer like 104, and 106 is A CPU for controlling the operation of the transmitting device 103, a ROM for the CPU 106,
108 is a work RAM of the CPU of 106, and 109 is 10
6 is a transmitter for transmitting data transferred from the CPU, 110 is a receiving device, 111 is a buffer for temporarily storing data transmitted to the 110 receiving device, 112 is a receiving device, 113 is the same as 111 This is a device buffer.

A case where data is transmitted from the host computer 101 and the host computer 102 to the receiving device 110 and the receiving device 112 on the same channel will be described below.

When a data transmission request for the receiving device 110 and the receiving device 112 is issued to the transmitting device 103 from the host computer 101 and the host computer 102, the CPU 106 requests the host computer 101 and the host computer 102 based on the program in the ROM 107. Receives data related to (such as the recipient). Then, whether the transmitter 109 can be used, or the receiving device 110 which is a transmission partner using the channel for channel control,
It is checked whether the receiving device 112 is receivable, and if receivable, a channel is established between the transmitting device 103 and the receiving device 110 and the receiving device 112. Next CPU
The buffer 106 allows the buffer 104 and the buffer 105 to receive the transmission data from the host computer 101 and the host computer 102, and stores the transmission data in the respective buffers. During that time, the CPU 106 checks the receivable data rate of the receiving device 110 and the receiving device 112, sets the time distribution according to the capability, and writes it in the RAM 108. For example, if the receiving device 110 is 4800b
ps and the receiving device 112 is 9600 bps, the time allocation occupied between the host computer 101 and the receiving device 110 and between the host computer 102 and the receiving device 112 is set to 1: 2, and the amount of data to be transmitted is maximized depending on the time when the channel is occupied. It should be suitable for each device. When the buffer 104 is full of data to be transmitted to the receiving device 110 or when the data has ended, the CPU 106 sends the data in the buffer 104 to the transmitter 109 starting with the ID number of the receiving device 110, and the transmitter 109 is given. Wirelessly transmit the data. When the receiving device 110 finds its own ID number, it stores the data sent thereto in the buffer 111, and stops storing at the end of data signal. The CPU 106 transfers the data amount based on the time distribution stored in the RAM 108 to the transmitter 109. If the transmission data from the host computer 102 is to be stored in the buffer 105, the receiving device 1 can be similarly operated.
After the ID number of 12, the data for the exclusive time is transferred from the buffer 105 to the transmitter 109. If data from the host computer 101 remains during this period, the buffer 1
Data is stored in 04. The above process is repeated, and when the transmission data is completed, the channel control channel is used to cancel the establishment of the channel and wait for the next data transmission request.

When only one channel is established, that channel occupies all the time, a data transmission request is issued from another host, the channel is established, and a plurality of channels are set to the same channel. When it becomes necessary to realize the above, time allocation is determined and data transmission is performed according to the time allocation.

With the above operation, when one channel is shared by devices having different capabilities, optimum data transfer is possible.

2 and 3, the CPU 1 in this embodiment is shown.
The flowchart of the operation | movement of 06 is shown.

First, the pre-transmission procedure will be described with reference to FIG.

When a data transmission request is received from the host computer 101 or 102 (step S21), it is judged whether or not the transmission by the transmitter 109 is possible (step S2).
2), if possible, the corresponding receiving device 110 or 11
Check if 2 is in use (step S2
3). As a result, if it is not in use, a channel is established (step S24), and the capability of the corresponding receiving device is checked (step S25). And decide the time allocation, RA
The data is stored in M108 (step S26). On the other hand, if it is confirmed in step S22 that transmission is not possible, or if it is confirmed in step S23 that it is in use, the host computer that issued the transmission request is notified of transmission failure (step S27).

Next, the transmission procedure will be described with reference to FIG.

First, the case of a transmission operation from the host computer 101 to the receiving device 110 will be described.

First, the data from the host computer 101 is transferred to the buffer 104 (step S31).
When a predetermined amount of data is stored (step S32), the ID number of the transmitting device 103 is sent to the transmitter 109 (step S33). The data is transferred from the buffer 104 according to a predetermined time distribution (step S34). The operation of step S34 is repeated until one transmission is completed (step S35). After this, the operations of steps S32 to S35 are repeated until the end of the data, but after confirming the end of the data transmission of step S36, it is confirmed whether or not another channel is established (step S37). As a result, if established, the process proceeds to step S40, or if not established, returns to step S32. When the end of data is confirmed in step S36, the channel is released (step S38), and the transmission operation from the host computer 102 to the reception device 112 is performed. S39 ~
Since the step S46 corresponds, the description will be omitted, but the buffer used is the buffer 105.

As described above, according to the first embodiment, when data communication channels are controlled using channel control channels and a plurality of communication channels are established on the same channel, each channel is By allocating the time for occupying the channel for data communication according to the capability of the connected device, it is possible to send more data on one channel, which is economically advantageous.

<Second Embodiment> FIG. 4 is a block diagram showing the configuration of a communication processing system according to a second embodiment of the present invention. In the figure, 201 is a host computer, 2
Reference numeral 02 is a host computer, 203 is a transmitter / receiver, and 20
Reference numeral 4 is a transmission buffer for temporarily storing transmission data from the host computer 201, 205 is a reception buffer for storing reception data to the host computer 201, 206 is a transmission buffer, 207 is a reception buffer, 2
Reference numeral 08 is a CPU 1 for controlling the transmitting / receiving apparatus 203, 209 is a ROM containing a program controlled by the CPU 208, 2
10 is a work RAM, 211 is a transmitter 1, 212 is a receiver 1, 213 is a host computer, 214 is a host computer, 215 is exactly the same as the transceiver 203, and the transceivers 2, 216 are transmission buffers, 21
7 is a reception buffer, 218 is a transmission buffer, and 220 is R
OM, 221 is RAM, 222 is transmitter 2, 223 is receiver 2, 224 is CPU.

In this embodiment, bidirectional communication will be described which is performed bidirectionally instead of unidirectional data transmission as described in the first embodiment.

The host computer 201 is connected to the host computer 213 and the host computer 202
Is assumed to have output a data transmission request to the host computer 214. When the CPU 208 receives a data transmission request from the host computer computer 201 and the host computer 202, it checks the request from each host computer, and also checks whether the channel can be established. After the channel is established, the data transfer capability of each of the transmitting and receiving sides is checked, and the amount of data to be transmitted per unit time is stored in the RAM 210, 221.
For example, if the data processing capacity is set to the host computer 201:
If the host computer 202 = 1: 2, when data are simultaneously transmitted, time is distributed at that ratio, and if the host computer 201 transmits data and the host computer 202 receives data from the host computer 214. , Host computer 201: Allocate time according to the ratio of host computer 202, and
Send and receive data on one channel. If the amount of data that can be transmitted by one channel is sufficiently larger than the amount of data that can be processed by each host computer, the channel is occupied only for the time required to send the amount of data that can be processed by each host computer, After sending the data, it is possible to open the channel once to another host computer.

The transmission data from the host computer 201 is transmitted to the transmission buffer 204 by the CPU 208, and when it is stored in the transmission buffer 204 for a certain amount or more, the data is transferred to the transmitter 211 with the ID number of the transmission partner as the head. Further, the transmission data from the host computer 202 is also transmitted in exactly the same manner. The data sent wirelessly is received by the receiver 223, and the CPU
The data is transferred to the reception buffer 217 or the reception buffer 219 of 217 according to the ID number by 224.

As described above, the channel control channel is used to control one data transmission channel so that it can be used for communication between a plurality of host computers.

In this embodiment, the CPU 203 and the CPU
224 operates in accordance with the processing procedure of FIG. 5 described below in addition to the above-described FIG. 2 and FIG.

FIG. 5 is a flow chart for explaining the post-transmission procedure according to the second embodiment.

When a certain amount of data has been transmitted to the connected device (step S51), the received data is read (step S52) and the data is stored in the reception buffer of the corresponding ID (step S53). The above operations of steps S52 to S53 are repeated until one data reception is completed (step S54).

<Third Embodiment> FIG. 6 is a block diagram showing the configuration of a communication processing system according to a third embodiment of the present invention. In the figure, 301 is a host computer, 3
Reference numeral 02 denotes a transmitting device, and 303 denotes an operation of the transmitting device 302 as a whole, which is a program stored in a ROM (not shown) (see FIG. 7).
CPUs 304-1 to 304-3 are buffers for storing data from connected devices, 30
5 is a selector, 306 is a transmitter, 307 is a transmitter, 30
8 is a transmitter, 309 is a receiving device, 310 is a CPU for controlling the operation of the receiving device 309 according to a program (including a program according to the flow chart of FIG. 8) stored in a ROM (not shown), 311 is a receiver, 312 Is a receiver, 313 is a receiver 3, 314 is a selector, 315-1
~ 315-3 is a buffer for storing the received data,
Reference numerals 316 denote printers, respectively. Also, the transmitter 3
02 and the receiving device 309 each include a RAM (not shown) used as a work area of a program.

Each of the transmitter 302 and the receiver 309 transmits data to three buffers 304-1 to 304-3 and 315-1 to 315-3 (in this embodiment, the host computer 301). ), A device for receiving data (the printer 316 in this embodiment) can be connected.

If the data transmission speeds of the transmission device 302 and the reception device 309 are slower than the data transmission speed of the host computer 301 and the data reception speed of the printer 116, the host computer 301 takes a long time to transmit data. In this embodiment, one transmitter is normally assigned to one transmitter, but a plurality of transmitters are used for high-speed data transmission.

When the host computer 301 and the printer 316 are connected to the transmitter 302 and the receiver 309, the transmission speed is set in the transmitter 302 and the receiver 309. For example, when the speeds of the transmitters 106 to 108 and the receivers 111 to 113 are 4800 bps and the host computer 301 and the printer 316 are 9600 bps, it is possible to use the two channels of the transmitter and the receiver by the setting. Host computer 3
The data sent from 01 is buffers 304-1 to 304
It is stored in -3. CPU 303 is selector 305
By switching the transmitter 306 and the transmitter 307.
CP that transfers data to and sends separate data
The U310 switches the selector 314 to return the data received by the receivers 311 and 312 in synchronism with the CPU 303, and restores the data in the original order.
Data is stored in 5-3. Then, it outputs it to the printer 316.

FIG. 7 is a flow chart for explaining the control procedure by the CPU 303 of the third embodiment, and FIG. 8 is the third chart.
14 is a flowchart illustrating a control procedure by the CPU 310 of the embodiment.

First, the operation of the CPU 303 will be described with reference to FIG.

First, when data is input from the host computer 301 (step S71), the setting state of which transmitter is to be used is checked (step S7).
2). Which channel will be used next? Receiver 30
9 is notified (step S73). Then, the data from the host computer 301 is stored in the buffer.
The selector 305 switches to the transmitter to be used, and data transfer from the buffer to the transmitter is repeatedly performed until the end of data (steps S75 to S7).
7).

Thereafter, the end of data is notified to the receiving device 309 (step S78).

Next, the operation of the CPU 310 will be described with reference to FIG.

The channel used for communication from the transmitter used in the transmitter 302 is set (step S81). Then, the selector 314 is switched, and the data from the receiver which has received the data transferred from the transmitter is transferred to the buffer until the data transfer is completed (step S82 to step S84).

As described above, by setting the transmitting device 302 and the receiving device 309, a plurality of transmitters,
High-speed data transmission using the receiver is possible.

<Fourth Embodiment> FIG. 9 is a block diagram showing the arrangement of a communication processing system according to the fourth embodiment of the present invention. In the figure, 401 is a host computer, 4
Reference numeral 02 denotes a transmitter, 403 a CPU that controls the overall operation of the transmitter 402 according to a program (including a program according to the flow chart of FIG. 10) stored in a ROM (not shown), and 404 receives data from the host computer 401. To store the data, 405 to 407 are transmitters, 408 is a print control device having a receiver, 409 is a program stored in a ROM (not shown) for the entire operation of the print control device 408 (program according to the flow chart of FIG. 11). CPU, 410, 411 controlled according to
Is a receiver, 412 is a page buffer for code data,
Reference numeral 413 denotes an image forming unit that develops image data from code data, and 414 denotes a recording unit that performs recording processing based on the image data on recording paper.

In the present embodiment, the receiving device is provided inside the print control device 408, and in particular, as many receivers as the number of channels that enables data transfer matching the capability of the print control device 408 are provided. ing. That is, the receiving device is composed of the receivers 410 and 411.

FIG. 10 is a flow chart for explaining the control procedure by the CPU 403 of the fourth embodiment, and FIG. 11 is a flow chart for explaining the control procedure of the CPU 409 of the fourth embodiment.

First, the operation on the transmitting device 402 side will be described with reference to FIG.

When data is transmitted from the host computer 401 (step S101) and a channel is established between the transmission device 402 and the print control device 408, the number of channels to be used is determined according to the reception capability of the print control device 408. (Step S102), the number of channels to be used is notified to the receiving side (Step S103). The data sent from the host computer 401 is stored in the buffer 404.
(Step S104). The CPU 403 transfers data from the buffer 404 to the transmitters 405 and 406 (step S105), and the transferred data is transmitted from the transmitter. The above steps S104 and S
The operation of 105 is repeated until the end of transmission (step S106), and after the end, the end of data is notified to the receiving device.

On the other hand, in the print control device 408, as shown in FIG. 11, first, a channel used for communication from the receiver is prepared, and the CPU 409 sends the data received by the receivers 410 and 411 in the original order. Then page buffer 4
It is stored in 12 (step S112). When the data for one page is accumulated, the CPU 409 instructs the image forming unit 413 to form an image, converts the code data into image data, and when the image data for one page is created, this is stored in the recording unit. Output to 414 (step S1
13-step S115). Step S112-
The processing up to step S115 is repeated until the data reception from the transmission device 402 is completed (step S116). The recording unit 414 prints out an image based on the image data on recording paper.

As described above, data transmission can be efficiently performed by changing the number of channels of the receiver incorporated in the device according to the capability of the device.

In each of the above embodiments, the host computer was used as the data transmission / reception source, but the present invention is not limited to this. For example, a printer or external storage device may be connected to the transmission / reception device. Is also good.

The transmitting / receiving means is not limited to radio waves, but may be wireless means such as sound or light.

The present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0049]

As described above, according to the present invention,
More data can be sent on one channel with economic benefits.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a communication processing system according to a first embodiment of the present invention.

FIG. 2 is a flowchart explaining a pre-transmission procedure according to the first embodiment.

FIG. 3 is a flowchart illustrating a transmission procedure according to the first embodiment.

FIG. 4 is a block diagram showing a configuration of a communication processing system according to a second embodiment of the present invention.

FIG. 5 is a flowchart illustrating a post-transmission procedure according to the second embodiment.

FIG. 6 is a block diagram showing a configuration of a communication processing system according to a third embodiment of the present invention.

FIG. 7 is a flow chart illustrating a control procedure by a CPU 303 according to a third embodiment.

FIG. 8 is a flowchart illustrating a control procedure by a CPU 310 according to a third embodiment.

FIG. 9 is a block diagram showing a configuration of a communication processing system according to a fourth embodiment of the present invention.

FIG. 10 is a flowchart illustrating a control procedure by a CPU 403 according to a fourth embodiment.

FIG. 11 is a flow chart illustrating a control procedure by a CPU 409 of the fourth embodiment.

[Explanation of symbols]

101, 102, 201, 202, 213, 214 Host computer 103 Transmitter 104, 105, 111, 113 Buffer 106, 208, 224 CPU 107, 209, 220 ROM 108, 210, 221 RAM 109, 211, 222 Transmitter 110 , 112 receiver 203, 215 transceiver 204, 206, 216, 218 transmission buffer 205, 207, 217, 219 reception buffer 212, 223 receiver

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location H04J 3/16 4101-5K H04L 29/04 29/08 8020-5K H04L 13/00 307 A

Claims (2)

[Claims] 1. A communication control system for controlling a channel for data transmission / reception by a channel for channel control and establishing a plurality of communication channels on one channel in a time division manner, wherein the communication capability of a destination device is confirmed. A communication processing system, comprising: a confirming unit for performing a change and a changing unit for changing a time assigned to each channel based on the confirmed communication capability. 2. A communication processing system having a plurality of physical channels, comprising: dividing means for dividing one logical channel into a plurality of physical channels; and communication means for performing communication according to the divided physical channels. Communication processing system.