JPH06187188A - Control system for unit type multiplex system - Google Patents

Abstract

PURPOSE:To automatically operate the necessary processing at the time of unit exchange by discriminating whether or not a required control is operated to the mounted unit, and updating the content of the memory means of the mounted unit as necessary. CONSTITUTION:Each unit 41-4N is equipped with a reloadable data storage device 12, and identification data proper to a main body device are provided on the main body device side. Then, when the units 41-4N are mounted on either of main body devices 5, the identification data stored in the data storage device 12 of the units 41-4N are compared with the identification data proper to the main body device 5, whether or not the required control is operated to the mounted units 41-4N is discriminated based on the compared result, and the content of the data storage device 12 of the mounted unit is updated as necessary. Therefore, the load of an operator at the time of executing the unit exchange can be reduced, and the setting miss of initial data or the like can be effectively prevented.

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 type multiplexing system.

[0002]

2. Description of the Related Art For example, in the case where a server device for a terminal communication service fails, a unitized server device having exactly the same configuration is provided so as not to interfere with a required service. A configuration is known in which a plurality of units are provided and only the defective server device is replaced. In such a multiplexing system, for example, as disclosed in Japanese Patent Laid-Open No. 3-27642, it is necessary to give individual addresses to a plurality of multiplexed unit devices. A configuration is known in which an address storage unit is provided outside, and when a unit is replaced, required address data is read from this storage unit and a required address is automatically given to the replaced unit. Further, a method is known in which the previous operating state is stored in the unit device, and the current operating state is determined from the state storage of the own unit device and the states of other unit devices when the initial program is loaded (Japanese Patent Publication No. 3-50304). Gazette).

[0003]

However, in this known automatic address assigning system, since the address storage unit is outside the unit device, the correspondence with the unit replacement is unclear, and the new unit replaced at the time of unit replacement. Initialization of data to the unit, setting work required only when the unit is replaced, such as loading the necessary data, must be done manually, and therefore errors in the setting operation easily occur due to human error. There is a problem that troubles such as seriously impairing service are likely to occur. In addition, in the method of storing the previous operating state, the correspondence with the operating base is unknown, and for example, when only one unit device is moved from another operating base, automatic determination cannot be performed, and manual work for data initialization etc. is not possible. In short, it has a problem that human error is likely to occur.

Therefore, an object of the present invention is to make it possible, when a unit is replaced in a unit type multiplexing system of this kind, to automatically perform the necessary processing when the unit is replaced. It is to provide a control method for the system.

[0005]

A feature of the present invention for solving the above-mentioned problems is that a plurality of units are detachably attached to a main body device so that even if a defect occurs in any of the units, the remaining units remain. In a control method for a unit-type multiplex system configured so that backup processing can be performed by a unit, rewritable memory means is provided in each unit and identification data unique to the main unit is provided on the main unit side. When the unit is attached to any 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, and the comparison result is Based on this, it is determined whether the required control should be performed for the mounted unit, and the contents of the memory means of the mounted unit are determined. Lies in the fact that to be updated in accordance with the requirements.

[0006]

The main unit is provided with identification data unique to this main unit. For example, when one of the units is mounted on the main body device for exchanging the unit, the identification data stored in the memory means of the mounted unit is compared with the identification data unique to the main body device. Based on this comparison result, it is determined whether or not the attached unit is a new one, and it is determined whether or not a required data setting process or the like is necessary according to the determination result. Further, the contents of the memory means are updated according to the determination result.

[0007]

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

FIG. 1 is a schematic configuration diagram of a terminal communication service system which is 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 provided on this communication line 3.
Are connected. Then, the center device 2 has a plurality of data processing device units 41, ...
.., 4N and these data processing device units 41 ,.
..It consists of the main body device 5 connected with 4N.

The data processing device unit 41 has a processor (CPU) 11, a data storage device 12 for storing data for terminal communication service and other necessary data, and an external bus interface section 13. , Which are configured as a known computer system in which these are connected to each other by an internal bus 14. The data storage device 12 is the data processing device unit 4
When 1 is connected to the main unit 5 by a connector as described later, it is used as a memory means for storing the identification data of the main unit 5.

The data processor unit 41 is provided with a connector 16 in a casing 15 thereof, and a casing 22 of the main body device 5 is provided with a connector 22 to be mated therewith.
Is provided. Then, the data processing unit 4
By mating one connector 16 with the corresponding connector 22, the main device 5 is mechanically and electrically connected. Since the data processing device unit 41 is mechanically and firmly attached to the main body device 5, for example, the data processing device unit 4 is attached to the main body device 5 side.
It goes without saying that a known guide mechanism for mechanically supporting and guiding 1 may be provided.

Another data processing unit 42, ...
The 4N also has exactly the same configuration as the above-described data processing device unit 41, and therefore, corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted.

The main body device 5 mainly has a function of controlling communication between the data processing device units 41 to 4N and a terminal device (not shown), and stores identification data unique to the main body device 5. It comprises a nonvolatile memory 24, a communication control unit 25, and an external bus 26 for connecting these 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 these plural data processing device units 41, ..., 4N.

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

FIG. 2 is a flow chart showing this unit discrimination control program. According to this flowchart, executed by each data processing device unit,
The unit discrimination 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 attached to the main body device 5. First, at step 31,
The identification data of the main body device 5 stored in the memory 24 is read out, and in the next step 32, the data storage device 12 is read.
The identification data stored in the memory is compared with the identification data read from the memory 24.

If this data processing device unit was previously attached to the same main body device, the same identification data has already been stored in the data storage device 12 at that time, and therefore the comparison results match. It will be. On the other hand, if the main body device to which this data processing device unit was previously attached is different from the main body device to be attached this time, this comparison result will not match.

If the comparison result in step 32 shows a mismatch, not only the initial setting data peculiar to the main body device mounted this time is not stored in this data processing device unit, but also the initial peculiarities peculiar to other main body devices are stored. The setting data may be stored. Therefore, step 33 is entered and the data recording device 12 of this data processing device unit is entered.
A process for setting required initialization setting data is executed therein. Note that this initialization processing is an example, and it goes without saying that various other data necessary when the data processing device unit is connected to another main body device may be appropriately deleted, changed, or added. is there.

Next, at step 34, the identification data of the main body device this time is written to a predetermined address in the data recording device 12, and the execution of the program ends.

On the other hand, if the comparison results in step 32 match, initial data and the like peculiar to the main unit installed this time are stored in this data processing unit, and this main unit is identified. Since the data has also been stored, the execution of this program ends without executing steps 33 and 34.

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

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

FIG. 3 shows another embodiment of the present invention constructed as described above. In this embodiment, the data communication system indicated by reference numeral 6 has a center device 7, and the center device 7 is connected by communication lines 8 to a large number of terminal devices (not shown). Then, the center device 7
A plurality of data processing device units 9 having the same function and configuration
, 9N and a main unit 10 connected to these data processing device units 91, ..., 9N.

The data processing unit 91, when connected to the main unit 10 by a connector as described later,
It has a memory 52 composed of an EEPROM which is a rewritable non-volatile memory for storing the identification data of the main body device 10, and an external bus interface section 53, which are mutually connected by an internal bus 54. Is configured as a computer system.

The data processor unit 91 is provided with a connector 56 in its casing 55, and a connector 6 mated with this is provided in the casing 61 of the main unit 10.
Two are provided. By mating the connector 56 of the data processing device unit 91 with the corresponding connector 62, the data processing device unit 91 is mechanically and electrically connected to the main body device 10. In order to mechanically and firmly mount the data processing device unit 91 in the main body device 10, for example, a known guide mechanism for mechanically supporting and guiding the data processing device unit 91 is provided on the main body device 10 side. Of course, it is also good.

Another data processing unit 92, ...
Since 9N also has the same configuration as the above-described data processing device unit 91, the same reference numerals are given to corresponding portions, and detailed description thereof will be omitted.

The main body device 10 mainly fulfills a function of controlling communication between these data processing device units 91 to 9N and a terminal device (not shown), and includes a processor (CPU) 63 and communication control. It comprises a data storage device 64 in which a required program and identification data unique to the main body device 10 are stored, a communication control unit 65, and an external bus 66 for connecting these to each other. The external bus 66 is connected to each external bus interface section 53 via a pair of connectors 56-62, and the processor 63 manages the plurality of data processing device units 91, ..., 9N. There is.

As one of the managements, when the data processing device unit is attached to the main body device 10, its memory 5
2 is compared with the identification data stored in the data storage device 64 of the main body device 10, and the required initialization processing is performed on the mounted unit based on the comparison result. A unit discrimination control program for discriminating whether or not to perform and updating the contents of the memory 52 as necessary is a main unit 10
Are stored in advance in the data storage device 64.

FIG. 4 is a flow chart showing this unit discrimination control program. The unit discrimination control operation executed in the main body device 10 will be described with reference to this flowchart.

In the unit discrimination control program shown in FIG. 4, one of the data processing device units is the main unit 10
Is started in response to being attached to the memory, first, in step 71, the memory 5 of the attached data processing device unit.
The identification data stored in No. 2 is read out, and in the next step 72, the identification data stored in the data storage device 64 is compared with the identification data read out from the memory 52.

If this data processing device unit was previously mounted in this main device, the comparison result is in agreement because the identification data unique to this main device has already been stored in the memory 52 at that time. It will be. On the other hand, if this data processing device unit is different from the one that was previously mounted, this comparison result will not match.

If the comparison results in step 72 are inconsistent, the main unit 1 is placed in the data processing unit.
There is a possibility that not only the initial setting data specific to 0 is not stored, but also the initial setting data specific to another main device is stored. Therefore, step 73 is entered and the initialization processing of this data processing device unit is executed.
The contents of this initialization process can be appropriately selected.

Next, at step 74, the memory contents are changed so that the contents of the identification data in the memory 52 become the identification data of the main unit 10, and the execution of the program is completed.

On the other hand, if the comparison results in step 72 match, initial data and the like peculiar to the main body device 10 are stored in this data processing device unit,
Moreover, since the identification data of the main body device 10 is already stored in the memory 52, the execution of this program ends without executing steps 73 and 74.

As described above, when the data processing device unit is attached to the main body device 10, the main device 10 determines whether or not the data processing device unit is attached to the main body device 10, and determines whether the data processing device unit is attached to itself. If the data processing device unit is not attached to itself, the required initialization process can be automatically performed on the data processing device unit.
Therefore, it is possible not only to reduce the burden on the operator in executing the unit replacement, but also to effectively prevent a mistake in setting the initial data.

[0035]

As described above, according to the present invention, when a unit is exchanged in the unit type multiplexing system, an initialization process required when the unit is exchanged is automatically performed on the exchanged unit. Since it is possible to reduce the load on the operator when replacing the unit, the initialization process can be reliably performed without error.

[Brief description of drawings]

FIG. 1 is a schematic system diagram showing an 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.

FIG. 3 is a schematic system diagram showing another embodiment of the present invention.

4 is a flowchart showing a unit discrimination control program executed in the main body device of FIG.

[Explanation of Codes] 1 Terminal Communication Service System 2, 7 Center Device 5, 10 Main Unit 6 Data Communication System 11, 63 Processor (CPU) 12 Data Storage Device 24 Memory 41 to 4N, 91 to 9N Data Processing Device Unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiko Hibino 15-1 Naeshiro-cho, Mizuho-ku, Aichi Prefecture Nagoya City Brother Industries, Ltd.

Claims (1)

[Claims] 1. A unit-type multiplex 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 problem occurs in any of the units. In the control method for, the rewritable memory means is provided in each of the units, and the main body device side is provided with identification data unique to the main body device, and the unit is attached to any of the main body devices. In addition, the identification data stored in the memory means of the unit is compared with the identification data unique to the main body device, and based on the comparison result, whether or not the mounted unit should be subjected to the required control. The unit type characterized in that the contents of the memory means of the mounted unit are updated when necessary. Control method for multiplexing system.