JPH0580995A - Confirming system for matching property of system edition - Google Patents

Abstract

PURPOSE:To improve the reliability and the safety of a computer network system. CONSTITUTION:In a computer network system where plural slave station systems 5 are connected to a master station system 1 via a communication means 4, a slave station system edition control means 2 included in the system 1 controls the information on the editions applied to the systems 5. Meanwhile a main station communication fixing means 3 included in the system 1 compares the edition of each system 5 received from the system 5 before transmission of the primary data to the system 5 with the edition controlled by the means 2 and decides the matching property of both editions. At the same time, a system edition storage means 6 provided in each system 5 controls the information on its own edition. A slave station communication fixing means 7 included in the system 5 transmits the edition controlled by the means 6 to the system 1 before the primary data are transmitted to the system 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system version number consistency confirmation method in a computer network system.

[0002]

2. Description of the Related Art In a computer network system composed of a plurality of computer systems, the version number of the system (system program) is often updated in each computer system due to business reasons or enhancement of functions.

Conventionally, in a computer network system in which a plurality of slave station systems are connected to a master station system via communication means, no particular consideration has been given to checking the compatibility of version numbers in advance. When the version of the slave system is not the planned version, it is detected that the slave system is accidentally improper during data transmission between the master system and the slave system. It was

[0004]

As described above, the conventional computer network system has the following drawbacks because no particular consideration has been given to checking the consistency of version numbers in advance. It was

If there is a difference in the data definition or the like due to the difference in the version number, there is a possibility that erroneous processing will be performed.

If there is a difference in the basic function of data communication due to a difference in version number, communication may not be continued.

Unauthorized intruders into the system cannot be sufficiently excluded, and there is a problem in terms of security.

The present invention has been proposed in view of the above points, and an object of the present invention is to provide a system version number consistency confirmation method capable of enhancing the reliability and safety of a computer network system. It is in.

[0009]

In order to achieve the above-mentioned object, the present invention is provided in a master station system in a computer network system in which a plurality of slave station systems are connected to the master station system via communication means. A slave side system version number managing means for managing information about the version number applied to each slave station system, and a slave station system provided in the master station system and sent from the slave station system prior to main data transmission with the slave system. The version number of the master station is compared with the version number managed by the slave side system version management means to judge the consistency, and the master station side communication establishment means for managing the version number provided in the slave station system. The system version number storage means and the version number managed by the own system version number storage means, which is provided in the slave station system and managed by the master station system before the main data transmission, So that and a slave station communication establishing means for transmitting to the station the system.

[0010]

In the system version number consistency checking method of the present invention, the slave station side system version number managing means provided in the master station system manages the information about the version number applied to each slave station system, and The version number of the slave station system sent from the slave station system prior to the main data transmission with the slave station system by the master station side communication establishment means provided in the master station system To determine consistency. On the other hand, the own system version number storage means provided in the slave station system manages information related to its own version number, and the slave station side communication establishment means also provided in the slave station system precedes the main data transmission with the master station system. And transmits the version number managed by its own system version number storage means to the master station system.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a computer network system to which the system version number matching confirmation method of the present invention is applied.

In FIG. 1, this embodiment comprises a master station system 1 and a plurality of slave station systems 5 connected to the master station system 1 via a communication means 4.

In the master station system 1, as a part related to the present invention, slave station side system version number managing means 2 for managing information on version numbers applied to each slave station system 5.
Then, prior to the main data transmission with the slave station system 5, the version number of the slave station system 5 sent from the slave station system 5 is compared with the version number managed by the slave station side system version number managing means 2 to judge the consistency. Main station side communication establishing means 3 is provided.

As a part related to the present invention, the slave station system 5 has its own system version number storage means 6 for managing information on its own version number, and its own system version prior to main data transmission with the master station system 1. A slave station side communication establishing means 7 for transmitting the version number managed by the number storage means 6 to the master station system 1 is provided.

FIG. 2 shows details of the slave station side system version management means 2 provided in the master station system 1.
Each slave station system 5 has a slave station system version storage unit 21, and each slave station system version storage unit 21 stores a slave station identification information storage area 22 in which information for identifying the slave station system 5 is stored. , System version number information storage areas by period 23, 2 in which information associating application period and version number is stored
4, ... And are provided.

FIGS. 3 and 4 are system version number storage section 2 for each slave station.
2 shows an example of the information stored in No. 1.

That is, FIG. 3 shows that "the slave station system A is the 1.0th from January 1, 1991 to March 31, 1991.
1st edition is applied, and 1.04th edition is applied after April 1, 1991. " In addition, FIG. 4 indicates that “Dependent system B, version 1.50 is applied after December 15, 1990”.

The operation of the above embodiment will be described below.

In FIG. 1, when data transmission is performed between the master station system 1 and the slave station system 5, the master station side communication establishing means 3 and the slave station side communication establishing means 7 perform predetermined communication via the communication means 4. Establish communication according to the protocol.

At this time, the slave station communication establishing means 7 reads the version number held in the own system version number storage means 6,
Send to the master station system 1. When the version number is updated in the slave system 5, the version number information in the own system version number storage means 6 is updated at the same time.

On the other hand, the master station side communication establishing means 3 notifies the slave station system version number managing means 2 of the identification name of the slave station system 5 in order to obtain the version number of the slave station system 5 of the other party.

The slave side system version management means 2 uses the received identification name as a search key from the information as shown in FIG.
The slave station system version number storage unit 21 is acquired, and the information of the period version system version number information storage areas 23, 24, ... Contained therein is notified to the master station side communication establishing means 3.

Note that the system administrator is the slave station system 5
The version number managing means 2 of the slave station side manages information about the version number of the subordinate side, and functions such as registration, change and deletion of the information at this time are provided.

Next, the master station side communication establishing means 3 determines the version number corresponding to the current date from the information obtained from the slave station side system version number managing means 2, and the version number and the slave station system 5 send it. Compared with the version number, the consistency is judged by whether or not they match.

Here, in the case of the regular slave station system 5, the two should match, and in that case, main data transmission is started.

If the version numbers are not the ones scheduled due to a version number update error or illegal operation on the slave system 5, the two do not match, and in that case, communication is stopped and the system administrator is notified of that. Perform processing.

Even if there is a difference in the basic function of data communication due to a difference in version number, if it is clear that there is no contradiction in other processing, the master station system 1 side determines the slave station system 5 It is also possible to continue communication by processing such as matching the own version number to the actual version number.

[0029]

As described above, the system version number consistency checking method of the present invention has the following effects.

Before the main data transmission between the master station system and the slave station system, in order to confirm whether or not the version number of the slave station system is the planned version, the data definition etc. may be changed depending on the version number. If there is a difference, it is possible to prevent erroneous processing by stopping the processing.

Even if there is a difference in the basic function of data communication due to a difference in version number, if it is clear that there is no contradiction in other processing, communication is continued by processing such as adjusting the version number. It is also possible.

Since the version number is also checked in addition to the existing protection function, the security function can be enhanced.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a computer network system to which a system version number consistency confirmation method of the present invention is applied.

FIG. 2 is a configuration diagram showing an example of a slave station side system version management means in a master station system.

FIG. 3 is a diagram showing an example of setting information of a slave station system version storage unit in a slave station system version management unit.

FIG. 4 is a diagram showing an example of setting information of a slave station system version storage unit in the slave station system version management means.

[Explanation of symbols]

 1 ... Master station system 2 ... Slave station side system version management means 21 ... Slave station system version number storage unit 22 ... Slave station identification information storage area 23 ... Period system version number information storage area 24 ... Period system version information Storage area 3 …… Main station side communication establishing means 4 …… Communication means 5 …… Slave station system 6 …… Self system version number storage means 7 …… Slave station side communication establishing means

Claims (3)

[Claims] 1. In a computer network system in which a plurality of slave station systems are connected to a master station system through communication means, slave stations provided in the master station system and managing information relating to version numbers applied to each slave station system. Side system version management means and the version managed by the slave side system version management means, which is provided in the master station system and is sent from the slave system prior to the main data transmission with the slave system. The master station side communication establishment means for judging the consistency by comparing with the number, the own system version number storage means for managing the information about its own version number, provided in the subordinate station system, and the main station provided in the subordinate station system. Equipped with slave station side communication establishing means for transmitting the version number managed by the own system version number storage means to the master station system prior to the main data transmission with the station system. System version number check consistency method, characterized in that the. 2. The system version number consistency confirmation method according to claim 1, wherein the slave station side system version number management means comprises a slave station system version number storage unit for each slave station system. 3. The system version number consistency checking method according to claim 2, wherein the slave station system version number storage section includes a slave station identification information storage area and a period-specific system version number information storage area.