JP2000092150A - Information origination retransmission management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an information reception side device capable of surely obtaining information originated by an information origin device without omitting it in a system composed of one or plural information reception side devices as an HCI(human communication interface) device and the information origin device for managing the information and originating the information to an optional information reception side device. SOLUTION: In this management system, management data ID1 as the ID of a value 1 for confirming whether or not the information reception side device 2 surely received the information DN1 for instance are put inside the information DN1 originated by the information origin device 1 to the information reception side device 2 and the information reception side device 2, which receives the information DN1 returns a confirmation response AK1 including the management data ID1 for indicating that the information DN1 has been received to the information origin device 1. While the reply is absent or until the prescribed number of times of retransmission is reaped, the information origin device 1 repeats the retransmission of the information DN1 in a prescribed cycle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called HCI device (abbreviation of a human communication interface device, usually comprising a personal computer or a workstation, that is, a screen display means such as a CRT and a data operation input means such as a keyboard). Information input / output terminal device for an operator equipped with one or more information receiving side devices and a personal computer or workstation, etc., which constantly manage information, and provide abnormal messages and communication. In a system consisting of an information source device having a role of transmitting items and the like to a desired information receiving device, even if an operator of the information receiving device is absent at first, the information source device can be securely connected to the information receiving device. Information transmission retransmission management as a method of managing information retransmission for transmitting information to equipment For Formula.

[0002] In the drawings, the same reference numerals indicate the same or corresponding parts.

[0003]

2. Description of the Related Art FIG. 6 is a block diagram of a conventional main part of a system including an information receiving apparatus and an information transmitting apparatus of this type. In FIG. 1, reference numeral 1 denotes an information source device composed of, for example, a personal computer or a workstation;
Usually, it is an information receiving side device as an HCI device having a function of receiving information transmitted from the information transmitting device 1 in real time and displaying the information on a screen, which is composed of a personal computer or a workstation. .., Dn are information transmitted from the information source apparatus 1 to the information receiving apparatuses 2 and 3 in this example. Here, information # 1, # 2,.
Also called n.

[0004] When information D1 to be transmitted to the information receiving device 2 is created by itself or obtained from another information source, the information transmitting device 1 generates the information D1 at an arbitrary timing. And 3 and the information receiving side devices 2 and 3 receive the information. A screen example of the information receiving side device 2 or 3 at this time is a screen F1 in FIG. In this example, it is assumed that information (# 1) D1 is displayed at the bottom of the screen F1.

[0005] Next, when the information transmission source device 1 acquires information (# 2) D2 to be newly transmitted, the information transmission source device 1 transmits the information D2 at an arbitrary timing as in the previous case. The information is transmitted to the devices 2 and 3, and the information receiving devices 2 and 3 receive the information D2 and display the information D2 on the screen as described above. A screen example of the information receiving device 2 or 3 at that time is a screen F2 in FIG. That is, information (# 2) D2 is displayed at the bottom of the screen F2.

[0006]

However, in the case of the above-mentioned information transmission / reception method, the information receiving side devices 2 and 3 are required.
There is no problem if the information D1 transmitted earlier can be surely confirmed (recognized on the screen). However, the information display screen has not been activated, or the information display screen has been displayed on the screen but the operator was absent and could not confirm. Even if the information D1 cannot be confirmed for some reason, the information receiving side device 2
The information D1 once received and stored in the steps 3 and 3 is overwritten by the next transmitted information D2.

To prevent this problem, the information receiving side device 2
Even if the screen display method of (3) and (3) is changed to display a plurality of received information in chronological order, there is a limit to the number of information that can be displayed simultaneously. Alternatively, a method may be considered in which an auxiliary storage device is provided in all the information receiving apparatuses so that the history of the information can be stored and past information can be searched. However, this also increases the cost of the entire system.

Accordingly, the present invention is intended to provide an information processing apparatus which is capable of recognizing information transmitted from an information transmitting apparatus at first and overwriting a screen of the information receiving apparatus with other information. It is an object of the present invention to provide an information transmission / retransmission management system in which an information transmission source device retransmits information, thereby preventing omission of confirmation of information of an information reception side device.

[0009]

In order to solve the above-mentioned problems, in the information transmission / retransmission management system according to the present invention, one or a plurality of information receiving side devices (2, etc.) as input / output terminal devices for information to an operator. ) And an information transmission source device (1) for transmitting information for a terminal to a desired information reception side device, the information reception side device surely received the information for the terminal within the information for the terminal. Data for confirming whether or not the I of value 1 as ID1
D, etc.), and the information receiving device receiving the information for the terminal with the management data (eg, DN1) returns a response including the management data (eg, acknowledgment AK1) to the information source device. As long as there is no reply, the information source device repeats the retransmission of the information for the terminal with the management data at a predetermined cycle.

[0010] In the information transmission retransmission management system according to claim 2, in the information transmission retransmission management system according to claim 1,
The number of retransmissions of the terminal information with management data is defined in advance, and the information source device repeats the retransmission for the number of times. In the information transmission retransmission management method according to claim 3, in the information transmission retransmission management method according to claim 1 or 2, at least the retransmission can be omitted according to the importance of the information for the terminal.

FIG. 1 is a block diagram for explaining the gist of the present invention. In the figure, DN1 and DN2 denote information of a new configuration transmitted from the information source apparatus 1 to the information receiving apparatus 2 (abbreviated as information # 1 and information # 2, respectively), ID1 and ID1.
ID2 is management data added to the information DN1 and DN2, respectively (also abbreviated as management data # 1 and management data # 2, respectively). AK1 is the information reception side device 2
1 is an acknowledgment (also abbreviated as acknowledgment # 1) to be transmitted to the information transmission source device 1 when it has been received and confirmed. MT is a management table provided in the information source device 1.

That is, the information transmission source device 1 manages the transmitted information in the transmitted information DN1 and DN2, respectively.
Information is transmitted by adding management data ID1 and ID2 for identification (such as a message ID).
When receiving the information DN1 and confirming the information on the screen, the information receiving side device 2 returns an acknowledgment AK1 to which the management data ID1 is added to the information transmission source device 1.

The information source device 1 recognizes from the acknowledgment AK1 that the information DN1 has been correctly confirmed, and the transmission process for the information DN1 ends. Next, when the information receiving side device 2 cannot confirm the information DN1 and cannot return the acknowledgment AK1, the information transmission source device 1 transmits the acknowledgment AK1.
1 has not been received.
To recognize that it is necessary to transmit the information DN1 again.

As a result, initially, the information receiving side device 2
Is not displaying the information display screen, or the next information DN2 is transmitted from the information transmission source device 1, and the information reception side device 2
Even if the information # 1 on the screen is overwritten, the information source device 1 continues to retransmit the information (# 1) DN1 at a predetermined time interval, so that the information receiving device 2 cannot recognize the information DN1. There is no.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 2 is a block diagram showing a configuration of a main part as one embodiment of the present invention. In FIG. 1, an information source device 1 is a device that transmits information to an information receiving device 2, and in this example, is a server that transmits information to another personal computer or workstation in a LAN. The information receiving device 2 is an HCI device having a function of receiving information transmitted by the information transmitting device 1 and displaying the information on a screen. In this example, the information receiving device 2 is an information receiving client in a LAN, such as a personal computer or a personal computer. It is composed of network computers, etc., and is usually installed in plurals.
In this embodiment, the number of the information receiving apparatuses 2 is one for ease of explanation.

Next, the operation of FIG. 2 will be described. First, the information transmission source device 1 first transmits information (# 1) DN1 to the information reception side device 2. At this time, management data (# 1) ID1 for identifying this information is added to the information DN1. This is an ID in the present embodiment, and information (# 1) DN1
Is set to 1. The information transmitting device 1 manages the transmitted information by using a management table M described later.
And information (# 1) DN1 as information having ID1 (that is, ID = 1) in the management table MT.
Is recorded as being transmitted.

Next, the information receiving side device 2 transmits the information (# 1) DN
1 is received. At this time, the information display screen of the apparatus 2 has been activated, and the information # 1 is displayed on the screen. When the operator confirms the content, the operator responds to the confirmation response (# 1) AK1 by transmitting the information. Reply to 1. In the confirmation response # 1, the same management data (# 1) ID1 as that added in the information (# 1) DN1 is added to identify that the confirmation is for the information # 1. Have been.

The information source device 1 has the management table shown in FIG. 3, and after transmitting the information # 1, the management table becomes MT1. That is, the management table MT1 is
ID1 (information # 1 of ID = 1) has information indicating that it is currently being transmitted, and temporarily has information # 1 of ID = 1.
The monitoring time # 1 is held as the retransmission interval of the information # 1 when the acknowledgment # 1 for the information # 1 does not come from the information receiving side device 2.

FIG. 4 is a flow chart showing an embodiment of the processing executed by the information transmitting apparatus 1 in this state.
Is the step number. Referring to FIG. 4, the operation of the information transmitting apparatus 1 will be described. After transmitting the information # 1 (S1), the information transmitting apparatus 1 waits for the monitoring time # 1 to transmit the information # 1. If there is no acknowledgment # 1 from the server (S2, branch N), the information # 1 is again transmitted to the information receiving side device 2.
(S3), and returns to step S2. Thereafter, the transmission process (retransmission process) is repeated until an acknowledgment # 1 from the information receiving side device 2 is received (S2 → S3 → S2).

During this time, an acknowledgment #
1 is notified (S2, branch Y), the information source device 1 updates the management table MT, and updates the management table M in FIG.
As in T2, the record information related to ID1 (ID = 1) is deleted (S4). However, as described above, the information transmission source device 1
However, instead of repeating the transmission process (retransmission process) until the acknowledgment # 1 from the information receiving side device 2 comes after transmitting the information # 1, instead of repeating the transmission process (retransmission process), the management table MT3 in FIG. For example, in the case of the record information of ID1, the number of retransmissions # 1 is stored together with the monitoring time # 1, and when the retransmission for the arbitrarily determined number of retransmissions # 1 is completed, the transmission process of the information # 1 is terminated and the ID1 is transmitted. Information on (ID = 1) may be deleted from the management table MT3.

FIG. 5 is a flowchart showing this processing. That is, in FIG. 5, steps S3 to S3 in FIG.
While returning to step 2, steps S11 and S12 are added to count the number of retransmissions of information (S11), and when the scheduled number of retransmissions is reached (S12, branch Y), the process goes to step S4. Further, in the above-described embodiment, the transmission of the information from the information transmission source device 1 always requires the acknowledgment of the information receiving side device 2. However, the importance of the information transmitted by the information transmission source device 1 is determined. It is also possible to adopt a method in which the information source apparatus 1 does not wait for an acknowledgment of the information receiving apparatus 2 and does not retransmit information unconditionally for information of low importance.

When there are a plurality of information receiving apparatuses 2, the present invention can be realized by providing a management table in the information transmitting apparatus 1 for each number of information receiving apparatuses 2.

[0023]

According to the present invention, there are provided one or a plurality of information receiving apparatuses as HCI apparatuses, and an information transmitting apparatus for managing information and transmitting information for a terminal to a desired information receiving apparatus. In the system, in the information for the terminal, management data for confirming whether or not the information receiving side device has reliably received the information is inserted, and the information receiving side device that has received the information for the terminal with the management data includes A response including the management data is returned to the information transmission device, and the information transmission device transmits the information for the terminal with the management data at a predetermined cycle until the response is not received or until a predetermined number of retransmissions is reached. Was repeated,
Even if initially the information receiving device cannot confirm the information for the terminal with the management data transmitted from the information transmitting device, the information transmitting device performs the information retransmission to perform the information receiving device. Can reliably be obtained without overlooking the terminal information transmitted by the information transmission device.

[Brief description of the drawings]

FIG. 1 is a configuration diagram for explaining the gist of the present invention.

FIG. 2 is a block diagram showing a configuration of a main part as one embodiment of the present invention.

FIG. 3 is a diagram showing a configuration example of a management table in FIG. 2;

FIG. 4 is a flowchart showing an embodiment of the operation of the main part of the information source device of FIG. 2;

FIG. 5 is a flowchart showing another embodiment of the operation of the main part of the information transmitting apparatus of FIG. 2;

FIG. 6 is a conventional block diagram corresponding to FIG. 2;

7 is a diagram showing an example of a screen display of the information receiving side device in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Information source apparatus 2 Information receiving apparatus DN1 information (information # 1) DN2 information (information # 2) ID1 management data (management data # 1) ID2 management data (management data # 2) AK1 Acknowledgment (acknowledgement # 1) ) MT (MT1 to MT3) management table

Claims (3)

[Claims] An information input / output terminal device for an operator, comprising: one or more information receiving side devices; and an information transmission source device for transmitting terminal-oriented information to a desired information receiving side device. In the destination information, management data for confirming whether or not the information receiving device has reliably received the information for the terminal is included, and the information receiving device that has received the information for the terminal with the management data transmits the information. A response including the management data is returned to the source device, and while there is no response, the information source device repeats retransmission of the information for the terminal with the management data at a predetermined cycle. Information transmission retransmission management method. 2. The information transmission and retransmission management system according to claim 1, wherein the number of retransmissions of the information for the terminal with management data is defined in advance, and the information transmission source device repeats retransmission only for the number of times. An information transmission retransmission management method characterized by the following. 3. The information transmission / retransmission management system according to claim 1, wherein at least the retransmission can be omitted in accordance with the importance of the information for a terminal. method.