JP3269582B2 - Control scheme for unit multiplex system. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control system for a unit multiplex system.

[0002]

2. Description of the Related Art For example, in the event that a failure occurs in a server device for a terminal communication service, a unitized server device having exactly the same configuration is provided so as not to disturb a required service. 2. Description of the Related Art A configuration is known in which a plurality of units are provided, and only a server device in which a problem occurs is replaced. In such a multiplexing system, for example, as disclosed in JP-A-3-27642, it is necessary to assign individual addresses to a plurality of multiplexed unit devices. There is a known configuration in which an address storage unit is provided outside, and when a unit is replaced, required address data is read from the storage unit and a required address is automatically assigned to the replaced unit. In addition, a method is known in which a previous operation state is stored in a unit apparatus, and a current operation state is determined from the state storage of the own unit apparatus and the state of another unit apparatus at the time of initial program loading (Japanese Patent Publication No. 3-50304). Gazette).

[0003]

However, in this known automatic address assigning system, since the address storage unit is located outside the unit, the correspondence with the unit exchange is unknown, and the new unit exchanged at the time of unit exchange is unknown. The setting work required only when replacing the unit, such as initializing the data to the unit and loading the necessary data, must be performed manually, and therefore, the setting operation is likely to be erroneous due to human error. There is a problem that a trouble such as a serious hindrance to the service is likely to occur. In addition, in the method of storing the previous operation state, the correspondence with the operation base is unknown. For example, when only one unit device is moved from another operation base, automatic determination cannot be performed, and manual work such as data initialization is performed. In short, there is a problem that human error easily occurs.

[0004] It is therefore an object of the present invention to provide a unit-type multiplexing system in which when a unit is replaced in such a unit-type multiplexing system, necessary processing is automatically performed when the unit is replaced. It is to provide a control method for a system.

[0005]

A feature of the present invention to solve the above-mentioned problem is that a plurality of units are detachably attached to a main body device, so that even if a failure occurs in any one of the units, the remaining units are removed. In a control method for a unit type multiplexing system configured so that backup processing can be performed by a unit, a rewritable memory unit is provided in each of the units, and identification data unique to the main unit is provided on the main unit. When the unit is mounted on one of the main units, the identification data stored in the memory means of the unit is compared with the identification data unique to the main unit. Based on the newly installed unit.
Determine whether the unit is knit or not, and
If the unit is mounted on a wall,
The required setting processing for enabling the
The point is that it is performed for the means .

[0006]

The identification data unique to the main unit is given to the main unit. For example, when one of the units is mounted on the main unit for replacement of the unit, the identification data stored in the memory means of the mounted unit is compared with the identification data unique to the main unit. Whether the comparison result by the mounted unit in which is mounted newly is determined, loaded Uni
If the unit is newly installed,
The contents of the column are initialized by the specified setting process.
Initialization processing required for backup processing is automatically performed.
Executed dynamically .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a terminal communication service system according to an embodiment of the present invention. In this terminal communication service system 1, 2 is a center device, 3 is a communication line, and a large number of terminal devices (not shown) are connected to the communication line 3.
Is connected. The center device 2 has a plurality of data processing device units 41 having the same function and configuration.
4N and these data processing device units 41
.. consists of a main unit 5 connected to 4N.

The data processing unit 41 has a processor (CPU) 11, a data storage device 12 for storing data for terminal communication services and other necessary data, and an external bus interface unit 13. Are connected to each other by an internal bus 14 as a known computer system. Note that the data storage device 12 is
When 1 is connected to the main unit 5 by a connector as described later, it is used as a memory means for storing identification data of the main unit 5.

In the data processing unit 41, a connector 16 is provided on a casing 15 of the data processing unit 41.
Is provided. And the data processing unit 4
By mating one connector 16 with the corresponding connector 22, the main unit 5 is mechanically and electrically connected. In order to mechanically attach the data processing unit 41 to the main unit 5 more securely, for example, the data processing unit 4
Needless to say, a known guide mechanism for mechanically supporting and guiding 1 may be provided.

The other data processing unit 42,...
4N has exactly the same configuration as the data processing unit 41 described above, and therefore, the corresponding portions are denoted by the same reference numerals and detailed description thereof will be omitted.

The main unit 5 mainly performs a function of controlling communication between the data processing unit units 41 to 4N and a terminal device (not shown), and identification data unique to the main unit 5 is stored. And a communication control unit 25 and an external bus 26 for connecting these components to each other. The external bus 26 is connected to each external bus interface unit 13 via each pair of connectors 16-22, and is configured to connect the plurality of data processing device units 41,..., 4N.

As one of the managements of the processor (CPU) 11, when the data processing unit is mounted on the main unit 5, the identification data stored in the data storage unit 12 and the memory 24 of the main unit 5 are stored. Is compared with the identification data stored in the storage unit, and based on the result of the comparison, it is determined whether or not a required initialization process should be performed on the mounted unit. A unit discrimination control program for updating by updating is stored in advance in the data storage device 12 of each data processing device unit.

FIG. 2 is a flowchart showing the unit determination control program. According to this flowchart, executed by each data processing unit.
The unit determination control operation will be described.

The unit discrimination control program shown in FIG. 2 is started in response to the data processing device unit being mounted on the main unit 5, and first, at step 31,
The identification data of the main unit 5 stored in the memory 24 is read, and in the next step 32, the data storage device 12 is read.
Is compared with the identification data read from the memory 24.

If this data processing device unit was previously mounted on the same main unit, the same identification data has already been stored in the data storage device 12 at that time, so that the comparison results match. Will be. On the other hand, if the main unit to which the data processing unit has been previously mounted is different from the main unit to which this data processing unit is mounted this time, the comparison result does not match.

If the result of the comparison at step 32 is inconsistent, not only the initial setting data specific to the main unit mounted this time is not stored in this data processing unit, but also the initial setting data specific to other main units. There is a possibility that the setting data is stored. Therefore, step 33 is entered and the data recording device 12 of this data processing unit is
A process for setting required initialization setting data is executed. Note that this initialization process is an example, and it is needless to say that various other data necessary when the data processing device unit is connected to another main device may be appropriately deleted, changed, or added. is there.

Next, at step 34, the current identification data of the main unit is written to a predetermined address in the data recording device 12, and the execution of the program is completed.

On the other hand, if the comparison results in step 32 match, the data processing device unit stores initial data and the like specific to the currently mounted main unit, and identifies the main unit. Since the data has already been stored, the execution of this program ends without executing steps 33 and 34.

As described above, when the data processing unit is mounted on the main unit, the data processing unit determines whether or not its own data processing unit is mounted on the main unit. If it is not attached to the main unit, required initial data and the like can be automatically set.
Therefore, it is possible to not only reduce the burden on the operator in performing the unit replacement, but also to effectively prevent a mistake in setting the initial data and the like.

In the above embodiment, when a certain data processing unit is attached to the main unit, it is determined whether or not initialization processing or the like must be performed on the data processing unit, and the result of the determination is followed. Although the configuration in which the required processing is executed on the data processing device unit side has been described, it is also possible to adopt a configuration in which the determination and the required processing are executed on the main body side.

[0022]

[0023]

[0024]

[0025]

[0026]

[0027]

[0028]

[0029]

[0030]

[0031]

[0032]

[0033]

[0034]

[0035]

According to the present invention, as described above, when a unit is replaced in a unit-type multiplex system, the installed unit is replaced by a newly installed unit.
Determine whether or not there is, and newly installed unit is installed
If the unit has been
The necessary setting processing for enabling
Since to perform and, on that can significantly reduce the burden on the worker at the time of unit replacement, initializes processing can be reliably performed without error, and attached to a new
Automatically assures backup processing by a failed unit
Ru can be as.

[Brief description of the drawings]

FIG. 1 is a schematic system diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart showing a unit discrimination control program executed in the data processing device unit of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal communication service system 2 Center device 5 Main device 11 Processor (CPU) 12 Data storage device 24 Memory 41 to 4N Data processing device unit

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiko Hibino 15-1 Naeshiro-cho, Mizuho-ku, Nagoya-shi, Aichi, Japan Inside Brother Industries, Ltd. (56) References JP-A-63-195754 (JP, A) Hei 1-162943 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 11/16-11/20 G06F 12/14 G06F 3/00 G06K 17/00

Claims (1)

(57) [Claims] 1. A unit-type multiplexing system in which a plurality of units are detachably attached to a main unit so that a backup process can be performed by the remaining units even if a failure occurs in any of the units. In the control method for the above, a rewritable memory means is provided in each of the units, and the main unit is provided with identification data unique to the main unit, and the unit is mounted on any of the main units. Then, the identification data stored in the memory means of the unit is compared with the identification data unique to the main unit, and based on the comparison result, the newly installed unit is replaced with the newly installed unit.
And determine whether or not the unit is
If the unit is installed, the backup
Required setting processing for enabling the management
Control for unitary multiplexing system characterized in that to perform relative.