JP3501518B2 - Transmission equipment control 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 transmission device control system, and more particularly to a transmission device control system that is duplicated as a main data system and a slave data system.

In a data system for controlling a plurality of transmission devices, if the system function is stopped when a failure occurs, the entire transmission system may be damaged significantly. As a remedy for the system, a dual system of the master system and the slave system is required.

[0003]

2. Description of the Related Art FIG. 14 shows a block diagram of a "transmission device control system in a distributed system" disclosed in Japanese Patent Laid-Open No. 61-123336.
1, 3-2, 3-3, ... (Hereinafter, they may be collectively referred to as “3”) are connected to the communication management unit 4, and the communication management unit 4 further includes a LAN (local area network). ) 5, it is connected to the primary data system 1 and the secondary data system 2 which both have the same configuration.

These data systems 1 and 2 are MMI
A (man-machine interface) management unit 11 is provided, and this MMI management unit 11 further includes a CPU 12, a memory 13, an external storage device 14, and a CRT (display) 1.
5, and the CPU 12 is connected to the LAN 5.

The communication management unit 4 is composed of a CPU 41, a memory 42, and an external storage device 43 which are connected to the LAN 5 and are connected to the transmission devices 3-1, 3-2, 3-3, .... .

In such a conventional technique, the process for synchronous operation due to duplication becomes very complicated, and
The problem of time-consuming information transfer for synchronization has been solved.

However, in order to apply the above-mentioned known technique to a control system in which there are a plurality of transmission devices to be controlled as shown in the figure, the communication with the transmission devices is managed as the number of transmission devices increases. CPU 4 in the communication management unit 4
Since the load of 1 becomes high, there is a problem that the number of connectable transmission devices is limited.

This problem can be dealt with by increasing the number of communication management units beyond the number at which the CPU can bear the load, as shown in FIG.

That is, in addition to the communication management section 4 subordinated to the transmission devices 3-1 to 3-3, ..., The transmission devices 3-4 to 3-
A communication management unit 40 subordinate to 6, ... Is provided, and this communication management unit 40 is also provided with a CPU 44, a memory 45, and an external storage device 46.

Then, these communication management units 4 and 40 are set to L
CPU 12 of the primary data system 1 and CPU 2 of the secondary data system 2 via lines 5-1 to 5-4 of AN5
2 to reduce the load sharing by the transmission device in the communication management unit.

In such a conventional transmission device control system, FIGS. 16 to 18 show CRTs 15 and 25 of MMI management units 11 and 21 operated by an operator, respectively.
7 shows an example of an initial screen, a screen after selecting a control type, and a screen after selecting a transmission device.

16 to 18, an operation procedure when a main system operator or a slave system operator in the related art performs screen control will be described.

As shown in the figure, this display screen has a control type selection area (), a transmission device NO. Selection area (), a control screen display area (), and a message display area (). On the screen (see FIG. 16), select the control type to be performed from the area (). Then, all the transmission device Nos. Related to the selected control type are displayed in the area () (see FIG. 17).

Next, on the screen after selecting the control type shown in FIG. 17, the operator selects the transmission device NO. To be controlled from the area (), and the information of the transmission device NO. All disappear, various information about the selected transmission device in the area () {control type name + transmission device NO. (), Current state of the transmission device (), control selection button (), execute / end button (), message display The control screen displaying the area ()} is activated (FIG. 18).
reference).

The selected control type and the transmission device number are displayed in the control type name + transmission device number (), and the current operating state of the selected transmission device is displayed in the current state () of the transmission device. Is displayed.

The operator can actually input a control instruction to the MMI management unit by pressing the control selection button () and the execution button (), and thereafter, the control is performed in a predetermined procedure.

Then, after a series of control procedures is completed, the CRT 1
When the response data is output to 5 and 25, a message indicating normal termination is displayed in the message display area (), and the current state () of the transmission device is also rewritten.

By pressing the end button () after completing the series of control procedures, the control screen (-) of the transmission device concerned disappears from the screen, but does not disappear unless the end button is pressed.

As long as the control screen is displayed, the same item can be continuously controlled by continuously selecting the control selection button and pressing the execute button. Also, the end button can be pressed at any time while the control screen is displayed, as long as the control instruction is not being executed.

FIG. 19 shows another example of the screen after selecting the transmission device No. in this control system. In FIG. 20, the main system operator sets the operation line of the transmission device No. A001 to N.
After switching to O.4, a time chart is shown when the control using this working line is performed. The operation procedure actually performed by the operator will be described with reference to this time chart.

First, in order to control the operation line of the transmission device NO. A001 among the lines 1 to 4 connected to the transmission device NO. When the line control is selected from the area () on the initial screen (see FIG. 20 (11)), all the transmission device NOs capable of line control are displayed in the area () on the screen as shown in FIG. It

Next, the operator selects "A001" from the area ().
If you select, all the information of the transmission device No. that has been displayed until now disappears, and as shown in FIG. 18, various information related to the transmission device NO. A001 selected in the area () (such as the currently operating line number. ) Is displayed and the control screen is activated.

Next, the operator selects the line No. button () to be switched and presses the execute button (),
A control instruction is input to the master MMI management unit 11 (see (12)), and the master MMI management unit 11 transmits a control message (see (1)
After that, the control message is transmitted to the transmission device NO. A001 in a predetermined procedure.

Thereafter, the operating line is changed from NO.1 to NO.4 (see (14) of the same), the transmission device transmits a control response message (see (15) of the same), and thereafter, the main system is executed in a predetermined procedure. A control response message is transmitted to the MMI management unit 11.

When the main system MMI management unit 11 receives the control response message, it outputs the control result (see (16) of the same), and the control screen shows that the current state () of the transmission device NO. A001 is "1".
It will change to "4" and the message display area () will indicate normal termination.

Next, control using the relevant line (see (17) of the same)
First, when the main system operator selects the test control from the area () on the screen as shown in FIG. 18, all the transmission control device NOs capable of the test control are displayed in the area () on the screen. .

Next, the operator selects the transmission device No. "A001" from the area (). Then, all the information of the transmission device No. that has been displayed up to now disappears, and as shown in FIG. 19, the control that newly displays various information regarding the test control of the transmission device NO.A001 (such as the current state of the operation line) is displayed. The screen is activated.

Next, when the operator selects ON from the control selection button () and presses the execution button (), a control instruction is input to the main system MMI management section 11 (see (18)).
After that, the control message is transmitted to the transmission device NO.A001 by the same procedure as described in the above steps (13) to (16) (see (19)), and the test circuit of the transmission device NO.A001 is transmitted. Connection
It changes from "OFF" to "ON" (see the same (20)), and the control response message is transmitted to the main MMI management unit 11 (the same).
(See (21)), the control result is output to the control screen ((22)
reference). On the control screen, the current status of transmitter No. A001
() Is rewritten, and normal termination is displayed in the message display area () (see FIG. 19).

Next, the control for clearing the test control of the transmission device NO. A001 is performed (see (23) of the same), but the transmission device NO.
The control screen of the test control of 01 is displayed on the screen, so the main system operator can select the control selection button () on the control screen.
Select OFF and press the execute button (),
A control instruction is input to the main system MMI management unit 11 (see (24) of the same), and thereafter, the transmission device NO. A001 is controlled in the same procedure as described in steps (13) to (16) above. A message is sent (see (25) of the same), the test circuit connection of the transmission device NO. A001 changes from "ON" to "OFF" (see (26) of the same), and a control response is sent to the main system MMI management unit 11. A telegram is sent (see (27)), and the control result is output to the control screen (see (28)). On the control screen, the current status () of the transmission device No. A001 is rewritten, and normal termination is displayed in the message display area ().

As described above, a plurality of control screens can be activated at the same time by using the multi-window technique for the area () on the screen.

[0031]

However, such a conventional technique has the following problems. (1) Problems when an operator of one system performs control while an operator of one system performs control: As described in the time chart of FIG. 20, the operator of the main system transmits the transmission device NO. In this case, the control line for A001's operating line is set to NO.4 (see (11) above), and then the test control for transmission device NO.A001 (see (17) and (23) above) is performed. Assuming that the operator cannot perform test control on the transmission device NO.A001 unless the operating line of the transmission device NO.A001 is NO.4, as described above, the operator of the main system transmits the transmission device NO.A001.
The slave operator operates the transmission device until the operation line of NO. A001 is switched to NO. 4 (see (11)) and the next control (see (17) or (23)) is performed. It was possible to control to switch the working line of NO. A001 to another line.

As a result, the operator of the main system operates the transmission device.
The operation was performed with the recognition that the operating line of NO.A001 was NO.4, and not only could the intended control (see (17) or (23)) not be performed, but also the test circuit connected to the wrong line. There was a problem. In addition, the control of switching the operation line by the subordinate operator and the control of the main operator connecting the test circuit to the operation line of the transmission device No. A001 (see (17) or (23) above) were performed almost at the same time. There was a similar problem for the case.

(2) Problems when one-sided operator continuously controls: As described above, it is possible to display a plurality of control screens in the area () on the screen (see FIG. 19), the operator can select the control button () on one control screen and press the execute button () immediately after selecting the control button () on another control screen and press the execute button (). is there. This allows the operator to continuously control the transmission device.

The operator connects the line No. 4 of the transmission device No. A001.
Immediately before the operation of connecting the test circuit to (see (17) or (23) of the same), connect the operating line of the same transmission device from line No. 4 to another.
Similarly, when the operation is switched to, there is a problem that the test circuit is connected to a line different from the working line (the current state of the transmission device ()) displayed on the test control screen. Normally, the operator does not perform control in such a procedure, but it may occur due to an operation error or lack of operator knowledge.

(3) Problems when various information of many transmission devices are displayed on the screen: As described above, the control screen for a plurality of transmission devices is displayed in the area () on the screen (see FIG. 19). ) Can be displayed, and using current multi-window technology it is usually possible to display control screens for all transmission devices present in the system.

However, as the number increases, it becomes more likely that various information regarding the transmission device that the operator wants to control will not be hidden and displayed on other screens on the screen, and the operator's operation during control becomes complicated. In addition, there is a problem that the response due to the control is delayed.

On the other hand, JP-A-62-60054, JP-A-3-105427,
Japanese Patent Laid-Open No. 5-173812 has a system for managing a control screen and a table for performing screen exclusive control, and a system for checking whether or not to perform subsequent processing by checking these tables. However, since only one of each of the two types of tables is provided in each of the duplicated master or slave management units, if a failure occurs in one system, the information in the control screen management table However, there was a problem that it disappeared.

Therefore, according to the present invention, a master data system or a slave data system having the same configuration controls a plurality of common transmission devices, and each data system issues an instruction from the operator to the transmission device. It is composed of an MMI management unit having a CPU including a CRT that inputs and outputs the result, and a communication management unit having a CPU that transmits and receives control data to and from the transmission device. It is an object of the present invention to enable normal screen control even in a control system of a transmission device capable of performing the above, even if a main system operator or a slave system operator controls any item at any time.

[0039]

Means and Actions for Solving the Problems (1) In order to achieve the above-mentioned object, in the control system of the transmission apparatus according to the present invention, as shown in FIG.
21 applies exclusive control to all combinations of control screen management tables 131 in which all CRT control screen information currently being activated and control screens are stored, depending on whether or not screen control will be hindered. Screen exclusion table 132 that stores screen exclusion data in which exclusion conditions are defined
And the CPUs 12 and 22 of the respective MMI management units 11 and 21 when the operator performs a start operation of the CRT control screen.
Shows all the control screens being activated from the control screen management table
Acquires information and requests activation from the screen exclusion table
The screen exclusion data of the control screen is acquired and the screen is excluded.
Exclusive clause of the corresponding control screen that is being activated and obtained from another table
It is characterized in that the operator can activate the screen only when it is judged whether exclusion is necessary or not and the screen control thereafter is not hindered.

That is, in each of the MMI management units 11 and 21, when the operator performs a CRT control screen activation operation and performs screen control, the above two types of tables 131 and 132 are used.
From here, it is determined whether or not the screen control thereafter will be hindered.
As a result, if there is a problem, the operator of that system is not started up the screen so that the operator does not actually perform the control, and only when there is no problem, the screen is started up and the operator actually controls. This can be done (see S-8 to 12 in FIG. 9 and S-13 in FIG. 11).

Therefore, when the operator of one system controls the screen while the operator of one system controls the screen as in the problem (1), the MMI of the other system is controlled.
When the management unit refers to the control screen management table 131 and the screen exclusion table 132 and finds that the exclusive control should be applied, the operator of the other system does not activate the screen. In this case, there is no priority relationship between the master and the slave. Then, when the screen can be started, the main system and the sub system
Between the control screen management tables 131 and 231 between
Error occurs in the MMI management unit for one system
Even if the contents of the control screen management table are not erased,
It That is, the master and slave control screen management tables 131
And 231 to match the control screen management table
Therefore, the control screen management table is always
It is difficult to control the screen after that.
It is possible to accurately judge whether or not to come (Fig. 9-Fig.
11). In addition, a failure occurred in the MMI management unit for one system.
Even if the control screen management table in the MMI management unit of the other system is
The contents do not disappear.

Even when the operator of one system continuously performs screen control as in the problem (2) above, the MMI management unit of one system operates in the control screen management table 131 and the above-mentioned control screen management table 131. When it is found by referring to the screen exclusion table 132 that exclusive control should be applied, it is possible to prevent the operator of one system from activating the screen.

(2) In the control system of the transmission device, when the screen cannot be activated, the operator can be notified to end the control screen early.

That is, when the control screen is not activated after the control screen is activated and it is determined that the monitoring control may be disturbed, the number of the transmission device No. or the like of the control object being activated is Along with the information, the operator of the system that has controlled the transmission device No. is notified so as to end the control screen earlier, so that the operator can perform the corresponding control earlier (S- in FIG. 11). 14).

[0045]

[0046]

( 3 ) In the control system of the above-mentioned transmission device, a start-up operation of the control screen is newly provided in each MMI management section.
It is turned on at the time of operation, and the control screen management of other systems is accompanied with this.
A control screen management table flag 133 that is turned off when the table is updated is provided , and when the operator continuously performs the control screen start operation of a plurality of items, the flag is used as a basis.
Based on this, it is possible to apply exclusion between each individual activation operation.

That is, the control screen management table flag 13
According to 3, when the operator successively performs the activation operation of the control screens of a plurality of items, the exclusion between the individual activation operations can be surely applied (see S-1 to 3 in FIG. 9).

[0049] (4) In the control system of the transmission device newly to MMI management portion of the main system and slave, the control
It is turned on when the screen is activated, and the other system's
When the control screen management table flag 133 that is turned off when the control screen management table is updated is provided , and the operators of both systems perform the control screen startup operation at substantially the same time, the master MMI management unit 11 then requests the table update. When it is recognized that the screen control may be hindered by checking the flag of the own system when the message is received, the controllable table update response message is transmitted to the slave MMI management unit 21. Therefore, the control screen of the slave system may not be activated, and the screen control may be preferentially performed only from the master system.

That is, when the operators of both systems perform the control screen activation operation almost at the same time, the main system MMI management unit 11 then checks the above flag, and when the corresponding control is performed, the subsequent supervisory control is disturbed. It is possible to recognize that there is a possibility that
By sending a table update response message that is uncontrollable to the control system of the slave system, the control screen of the slave system is not activated, and only the control from the master system is actually performed (S-29 onward in FIG. 9 and S41 in FIG. 12).
~ 46).

( 5 ) In the control system of the above transmission apparatus, when the table update response message that cannot be controlled is received, the slave MMI management unit 21 sends the table update request message to the master MMI management unit 11. Can be automatically retried.

That is, when it is informed that the control is impossible, the slave MMI management unit 21 causes the master MMI management unit 1 to operate again.
By transmitting (retrying) the table update request message to No. 1, unnecessary operation by the operator can be omitted (see S-28, 29 in FIG. 9 and S-30, 31 in FIG. 11). ( 6 ) In the control system of the transmission device described above, the slave MMI management unit 21 can arbitrarily set the number of retries, and an appropriate retry process can be performed.

( 7 ) In the control system of the above transmission device, the maximum number of screens that can be controlled is set in each MMI management unit 11 and 21, and the number of screens that the operator performs the control screen start operation is the maximum. If the number of screens is exceeded, it is possible to prevent the control screen from being activated.

That is, when the operator performs a control screen activation operation, if the actual number of control screens currently activated exceeds the maximum number of screens that can be monitored and controlled by the CRT, the control screen is activated. By not doing so, the corresponding control cannot be actually performed, and the above problem (3) can be solved (S-7 in FIG. 9).

( 8 ) In the control system of the transmission device described above, when each MMI management unit 11 or 21 cannot activate the control screen, the cause can be notified together.

That is, the MMI management unit does not activate the control screen, but at the same time, by notifying the cause of the control failure, the operator can identify the cause of the control failure (S-16 in FIG. 11). ).

( 9 ) In the control system of the above transmission device, the exclusion condition in the screen exclusion table 132 is
It can include whether the currently activated control screen information is activated by the own system or another system, and whether or not the transmission device in the currently activated control screen information is the same as the control-requested transmission device.

That is, in the method of defining the exclusion condition in the screen exclusion table 132, which of the self system and the other system has activated the currently activated control screen information, and the transmission device in the currently activated control screen information are The exclusion condition can be changed depending on whether it is the same as or different from the control-requested transmission device (see FIG. 4).

[0059]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 2 and 3 respectively show the memory 1 in the master and slave MMI management units 11 and 12 shown in FIG.
3 and 23 show examples of the control screen management table 131 and the screen exclusion table 132 in FIG.
Control screen management table flag (ON / OFF information only)
Is shown.

Of these, the control screen management table 131 shown in FIG. 2 stores the number of control screens currently activated (≦ n) in the master and slave systems and control screen information 1 to n currently activated. The control screen information among them is composed of "screen number" indicating the type of control screen, "control target transmission device NO.", And "main system / slave system classification".

When the control screen is activated, the number of control screens currently activated is incremented (+1), the relevant control screen information (for one record) is added, and when the control screen is terminated, the current activation is performed. The number of control screens inside is set to (-1), and the corresponding control screen information is deleted. The initial value of the number of control screens currently being activated is "0", and the maximum value is "n".

Further , the screen exclusion table 1 shown in FIG.
Reference numeral 32 denotes a table that is common and fixed in the master system and the slave system, and includes the number of screen exclusion information registrations (the number of types of control screens) and screen exclusion data (exclusive data for activation requests of each screen number) 1 to m. And each screen exclusion data is comprised of exclusion target information 1 to m (exclusion condition). In other words, exclusion conditions are defined for all combinations of control screens (screen requested to be activated and screen being activated).

FIG. 4 shows an example of exclusion conditions (bit data) of the screen exclusion table 132. Depending on the transmission device to be controlled and the control type, it may be determined whether the currently activated control screen is locked by its own system or another system. Even if the same type of control screen is used, control may be permitted if the control target transmission device is different, so even if the control screen of the same type is active, exclusion is made depending on whether the control target transmission device is the same or different. It may be decided whether or not to cover. Even in the above case, the exclusion condition has a bit configuration as shown so that it can be determined whether to apply exclusion.

Therefore, when the CPU of the MMI management unit performs the control requested by the operator from the control screen management table 131 and the screen exclusion table 132, it determines whether or not the subsequent monitoring control will be disturbed.

[1] Control Flow in Normal Time: FIGS. 5 to 7 Next, before explaining the operation of the control system of the transmission device according to the present invention using the above table, the control in normal time is explained. The flow (same as in the past) will be described.

Normally (when normal), the CRTs 15 and 2 of both systems are
5 makes it possible to control the transmission device 3. FIG. 5 is a diagram showing a control flow from the main system data system 1 in a normal state.
Input the control instruction for (1).

The master MMI management section 11 creates a control message in the format shown in FIG. In this control message, the message number (a) is a serial number from 1 for each message, the message type (b) is a code indicating the message type (see Fig. 6), and the source node NO. (C) is Is the node N of the sender of the message
O., the destination node NO. (D) is the node NO. Of the management unit that receives the message, and the node NO. (E) of the controlled transmission device is the node NO. Of the controlled transmission device (see FIG. 6). ), Message length (f)
The byte length of the electronic message is stored in, and the control instruction data or control response data is stored in the data part (g).

In the main MMI management unit 11, the message number is "1", the message type is "1", the transmission source node NO. Is "1", the transmission destination node NO. Is "3", and the controlled transmission device node. NO. Is the node number of the relevant management unit, and the message length is "header byte length (12 bytes) + data byte length",
A control instruction message in which "control instruction data" is stored in the data section is created, and the own system communication management section 16 is created from the memory (see FIG. 1).
And after confirming that the LAN line 5 between them is normal,
It is sent (2) to the own system (main system) communication management unit 16.

Next, the main system communication management unit 16 operates from the memory to the other system (slave system) communication management unit 26 and the LAN line 5 between them.
After confirming that the message is normal, change the source / destination node NO. Of the control instruction message and send it to the slave communication management unit 26.
(3) Do.

Furthermore, the communication management units 16 and 2 of the main system and the sub system
6 is the source / destination node NO. Of the control instruction message.
And send (4), (5) to the transmitter.

On the other hand, in the control response message from the transmission device 3, "2" is stored in the message type, the destination / source node NO. And the message length are changed, and "control response data" is displayed in the data section. Is stored in the communication management unit 1 of the main system and the sub system.
It is transmitted (6) and (7) to 6 and 26, respectively.

After confirming from the memory that the other-system communication management unit 16 and the LAN line 5 between them are normal, the slave communication management unit 26 further changes the source / destination node NO. Of the control response message. , Send it to the master communication manager 16 (8)
To do.

The main system communication management section 16 uses the control response message (6),
From (8), it is judged by the message number whether or not it has already been received, and if not received, it is confirmed from the memory that the own system MMI management section 11 and the LAN line 5 between them are normal. It is sent (9) to the system MMI management unit 11.

If the control response message has already been received, the response message is discarded.

The master MMI management unit 11 outputs (10) the result of the response data to the master CRT 15, and the external storage device 1
It is also stored in 4.

At this time, since the same data is also stored in the external storage device 24 of the slave MMI management unit 21, the message type of the message is "6", the source node NO. Is "1", the destination node.
"2" for NO., "Header byte length (12 bytes) + data section byte length" for message length, DB matching message storing DB matching data in the data part (in this case, it is not a control instruction / control response message) Therefore, the control target transmission device node NO. Is invalid) is transmitted (11) to the slave MMI management unit 21.

The slave MMI management unit 21 writes the data in the external storage device 24 according to the DB matching data.

FIG. 7 shows the slave data system 2 in the normal state.
It is a figure which shows the flow of control from. The operator inputs a control instruction to the transmission device 3 from the subordinate CRT 25 (1
2) Do. The subordinate MMI management unit 21 creates a control instruction message in the same manner as the above-described control from the main MMI management unit 11,
After confirming from the memory that the own system communication management unit 26 and the LAN line 5 between them are normal, the data is transmitted (13) to the slave system communication management unit 26.

At this time, since the slave communication management unit 26 is the slave system, the slave communication management unit 26 stores the message type "5" and the corresponding management unit node NO. In the transmission source / destination node NO. A transmission request message is created and transmitted (14) to the slave MMI management unit 21.

Upon receiving the retransmission request message, the subordinate MMI management unit 21 determines the source / destination node of the control instruction message this time.
The No. is changed and transmitted (15) to the master communication management unit 16.

Next, the main system communication management unit 16 confirms from the memory that the other system communication management unit 26 and the LAN line 5 between them are normal, and then the source / destination node of the control instruction message.
No. is changed and transmitted (16) to the subordinate communication management unit 26. Further, the master and subordinate communication management units 16 and 26 change the source / destination node NO. Of the control instruction message, It transmits (17), (18) to the transmission device 3.

On the other hand, from the transmission device 3, a control response message similar to that at the time of control from the master MMI manager 11 is sent to the master and slave communication managers 16 and 26, respectively.
(19), (20) The slave communication management unit 26 changes the source / destination node NO. Of the control response message, and the other system communication management unit 16 and the LAN line 5 between them are normal from the memory. After confirming this, send it to the master communication management unit 16 (21)
To do.

The main system communication management section 16 uses the response message (19), (2
It is judged by the message number among 1) whether it has already been received, and if it has not been received, it is sent to the subordinate MMI management unit.
(22) Do. If the control response message has already been received, the control response message is discarded.

The slave MMI management unit 21 outputs (23) the result of the response data to the slave CRT 25, and the external storage device 2
It is also stored in 4.

At this time, since the same data is also stored in the external storage device 14 of the main system MMI management unit 11, the message type of the message is "6", the source node NO. Is "2", the destination node.
"1" for NO. And D that stores DB matching data in the data section
The B matching telegram is transmitted (24) to the master MMI management unit 11.

The master MMI management unit 11 writes data in the external storage device 14 according to the DB matching data.

As described above, the communication to the transmission device 3 is managed by the communication management unit 16 of the master system, and when the operator simultaneously controls the transmission device 3 in the master system and the slave system, The control message is transmitted from the MMI management units 11 and 21 of the main system to the communication management unit 16 of the main system.
Sends the previously received control message to the transmission device 3, and puts the later received control message into a waiting state until the response message to the previous control message is received.

[2] Screen control operation: FIGS. 8 to 12 Next, the operation of the control system of the transmission device according to the present invention when each of the above tables is used will be described with reference to FIGS. 8 to 12 and FIGS. This will be described with reference to FIG.

FIG. 8 shows the flow of control signals in the configuration of the control system shown in FIG. 1, and FIGS. 9 to 11 show control enable / disable check and control performed by the CPU of the MMI management unit according to the present invention. The flow for updating the screen management table 131 is shown. First, the main system operator is the CRT.
Select the control type and transmission device No. from 15 (Fig. 8
(1)). Hereinafter, this operation is referred to as a control screen activation operation.

As a result, the CP of the master MMI management unit 11
U12 first checks the control screen management table flag 133 (see S-1 in FIG. 8 (88) and FIG. 9), and if ON (in use) (see S-2 in FIG. 9), starts the timer. (Refer to S-3 of the same figure) After a certain time, the flag is checked again (see S-1 of the same figure).

This control screen management table flag 133
Is for checking whether the screen can be started and for updating the control screen management table, and turns OFF after these are completed.
It is what is done.

If the flag 133 is OFF (not in use) (see FIG. S-2), the flag 133 is turned ON.
After setting to (in use) (see S-4 in the same figure), the CPU 12 of the master MMI management unit uses the control screen management table 131 and the screen exclusion table 132 in accordance with the following procedure, as shown in FIG.
When the control corresponding to the control type and the transmission device selected in step 1 is performed, it is determined whether or not the subsequent monitoring control will be disturbed.

The processing within the dotted line (see S-28 to S-31) will be collectively described later as a preferred embodiment.

First, the number of currently activated control screens is read from the control screen management table 131 (FIG. 8 (88) and S-5 in FIG. 9).
In the case of "0" (see S-6 in the same figure), control is possible, so the processing after S-18 in the same figure is performed.

At S-6 in the figure, the number of control screens currently activated is
If it is other than "0", check whether the number of control screens currently activated is the maximum number of screens that can be monitored and controlled (n in the example of FIG. 2) or more (see S-7 in FIG. 9), and "n" or more. In this case, since the problem (3) described above occurs, it is not appropriate to perform the corresponding control, and therefore the processing from S-15 onward in FIG. 11 is performed.

If the number of currently activated control screens is less than "n" in S-7 of FIG. 9, the screen exclusion information of the control screen requested to be activated is acquired from the screen exclusion table 132 (FIG. 8).
(88) and S-8 in FIG. 9).

Further, information on all the control screens being activated is acquired from the control screen management table 131 (see FIG. 8 (88) and S-9 in FIG. 9), and each control screen being activated is shown in FIG. The screen number, the transmission device No. to be controlled, and the master / slave system classification shown in FIG. 9 are read (see S-10 in FIG. 9), and the screen exclusion information of the corresponding screen acquired from the screen exclusion table 132 and being activated. From the exclusion condition (bit data: see FIG. 4), it is determined whether exclusion is required (S- in FIG. 9).
See 11).

As a result, when it is necessary to apply the exclusion (see S-12 in FIG. 9), if the corresponding control screen is activated and the control is performed, there is a possibility that the subsequent monitoring control may be hindered. Control is bad.

In this case, it is checked whether the relevant control screen information being activated is from the master / slave control (see S-13 in FIG. 11), and if it is from the slave, the slave MMI. After notifying the management unit that the operator should press the end button of the control screen that is being activated (see S-14), the control screen management table flag 133 is turned off (not in use). See -15). Then, in the message display area (FIG. 16) of the initial screen, factors such as control inability, exclusive information (control screen name in an exclusive relationship, system of the activated system, etc.) are displayed (S-16 and FIG. 89)))
It turns out that the operator is currently not good at performing the relevant control.

When it is not necessary to apply exclusion in the check of S-12 in FIG. 9, it is checked whether there is control screen information that is being activated and has not been checked (see S-17 of the same). If there is any, the processing from S-10 onward for the next control screen information is performed again.

If all the checks are completed in the check of S-17 in FIG. 9, the corresponding control is possible, so a table update request message is transmitted to the slave MMI management unit 12 (S in FIG. 8 (90) and FIG. 9). -18), start the timer.

The table update request message is received ((9 in FIG. 8).
0)), and the CPU 22 of the slave MMI management unit 12 adds the relevant control screen information to the control screen management table 131,
The number of currently activated control screens is incremented by (+1) (see FIG. 8 (91)), and a table update response message is transmitted to the main system MMI management unit 11 (see FIG. 8 (92)).

The table update response message is received ((9 in FIG. 8).
2)), and the MMI management unit 11 of the main system adds the relevant control screen information to the control screen management table 131 and increments the number of control screens currently activated by (+1) (see FIG. 8 (93) and FIG. 10). S-
19), the control screen management table flag 133 is turned off
(Unused) (see S-20 in FIG. 10), and the control screen is activated for the first time (see (94) in FIG. 8 and S-21 in FIG. 10). (In the conventional case, the control screen was started when the control screen was started.)

As a result, the control becomes possible, and when the operator pushes the control selection button and the execute button on the control screen, the CPU 12 of the main system MMI management section 11 creates a control message and sends it to the main system communication management section 16. When the control response message is received thereafter (see FIG. 8 (2) and S-22 in FIG. 10) (see FIG. 8 (9)), the CPU 1 of the master MMI management unit 11
2 stores the result of the response data in the external storage device 14 and sends the DB matching telegram to the slave MMI management unit 21 ((11) in FIG. 8).
And S-23 in FIG. 10), a timer is started, and then a DB matching response message is received from the slave MMI management unit 21 (see FIG. 8 (13)), and the result by the response data (transmission device status) And messages) are output to the main CRT 15 (see FIG. 8 (10) and S-24 in FIG. 10).

After that, when the operator presses the end button on the control screen, the CPU 12 of the main MMI management unit 11
Sends a table update request message to the slave MMI management unit 21 (see FIG. 8 (90) and S-25 in FIG. 10) and starts the timer.

When the CPU 22 of the slave MMI management unit 21 receives the table update request message, it deletes the relevant control screen information from the control screen management table 131 and sets all the control screen information after the relevant control screen information one record before. Move and decrement the number of currently activated control screens by (-1) (see FIG. 8 (91)), and also send a table update response message to the master MMI management unit 11 (see FIG. 8 (92)). .

Main system MM that received the table update response message
The CPU 12 of the I management unit 11 controls the control screen management table 13
The corresponding control screen information in 1 is deleted, all the control screen information after the corresponding control screen information is moved one record before, and the number of control screens currently being activated is set to (-1) (Fig. 8 (93) and Figure 1
After that, the control screen is erased from the screen (see (94) in FIG. 8 and S-27 in FIG. 10).

The control flow from the main system in the normal time in the present invention is newly added to the conventional technique (circle in FIG. 10), but the control flow from the slave system in the normal time in the present invention will be described. Is basically the same.

That is, when the operator selects the control type and the transmission device No. from the initial screen, the CPU of the slave MMI management unit until the control instruction message is transmitted to the slave communication management unit.
Performs the processing shown in S-1 to S-21 of FIGS. Further, when ending the control screen, S-25 and S-26 in FIG.
The processing shown in is performed.

When the above problems (1) and (2) may occur due to such a function, the problem can be solved by disabling the control screen so that the control is not performed. There is. Similarly, when the number of currently activated control screens in the control screen management table 131 is greater than or equal to the maximum value, the control screens are disabled so that the control is not performed. Has been resolved.

[3] Use control screen management table flag
Example: As described above, according to the present invention, the control screen management table flags 133 and 233 are newly provided in both of the duplicated master and slave MMI managers (see FIG. 1).
The operator can continuously perform the activation operation of the control screens of a plurality of items. In this case, the actual control (see FIGS. 8 (2) to (9)) can be performed only one item at a time, but the CPU of the MMI management unit performs the process (see FIGS. 9 to 11) for one control item. The processing for the next control item may start during the operation.

Of these, the processing for the next control item is performed after the table update request message is transmitted to the other system MMI management unit (see S-18 in FIG. 9) and before the update response message is received from the other system MMI management unit. If the control starts, the control screen information of the corresponding control has not been added to the control screen management table 131, so that exclusion cannot be applied. However, by newly providing this flag 133, the following Control items are prevented from starting (see S-1 to S-4 in FIG. 9 and S-20 in FIG. 10).

FIG. 12 shows a flow chart for updating the control screen management table 131 performed by the CPU of the MMI management unit at the time of receiving the table update request message according to the present invention, and FIG. The time chart at the time of starting the control screen at almost the same time is shown.

When the operators of both systems perform control screen activation operations almost simultaneously, the CPU of the MMI management unit of one system adds the relevant control screen information to the control screen management table 131, and the number of control screens currently activated. Until (+1) (Fig. 9
It is possible that a table update request message is received from another system during S-1 to S-19 of FIG.

In this case as well, exclusion cannot be applied without this flag 133 as in the above case. However, in the present invention, it is first judged whether the own system is the master system or the slave system (see S-41 in FIG. 12), and the In the case of a system, it is checked whether the above flag 133 is "ON" (see the same S-42), and if it is "ON" (the same S-4).
(Refer to FIG. 3), the master system may have already started the control screen activation operation for performing the control that requires exclusive control to the slave system (see FIG. 13), so control cannot be performed to the slave MMI management unit. Of the table update response message (see S-44 of FIG. 12 and FIG. 13), and then the CPU of the slave MMI management unit 21.
22 is because the content of the response message is uncontrollable (S-29 in FIG. 9)
Then, the flag 133 is turned off (see S-15 in FIG. 9), and the operator is notified of factors such as the uncontrollable factor and exclusion information (see S-16 in FIG. 9 and FIG. 13).

When the self system is a slave system in the check of S-41 of FIG. 12 and the flag 133 is OFF in the check of S-43 of FIG. 12, the relevant control screen information is added to the control screen management table 131. Then, the number of currently activated control screens is incremented by 1 (see S-45 in FIG. 12), and a table update response message is transmitted to the other system MMI management unit (see S-46 and FIG. 13).

As a result, even if the operator continuously activates the control screens for a plurality of items, or the operators of both systems perform the control screen activation operations almost simultaneously, the exclusion can be made.

[4] At the time of notification that control is impossible, the cause or exclusion information
Information that is also displayed and displayed in the message display area
Example: After the operator starts the control screen,
When a message indicating that control is impossible is displayed in the message display area of the initial screen (see S-16 in FIG. 11), the operator needs to know the cause of the control failure. As a factor of being uncontrollable, the number of currently activated control screens is already the maximum value (see S-7 in FIG. 9), or if the corresponding control is performed, there is a possibility that the subsequent monitoring control may be hindered ( Hereinafter, it is called uncontrollable by exclusive control (see S-12 in FIG. 9) and the like.

In addition to this factor, if the operator cannot control by exclusive control, the transmission device N being activated is under control.
Information such as O. will also be notified.

As a result, the operator can identify the cause of the uncontrollable state, and by reading the message, know the operation necessary for performing the corresponding control (end of the control screen currently being activated, etc.). You can

[5] Operators of both systems control almost simultaneously
When control is disabled due to screen startup operation
Example of performing a retry: In the above example, the processing when the operators of both systems perform the control screen start-up operation almost at the same time is explained. In this case, the master MMI management unit controls the slave MMI management unit. When the table update response message of impossible is transmitted, the CPU of the slave MMI management unit recognizes that it is not appropriate to perform the corresponding control by checking the control screen management table flag 133 (see S-29 in FIG. 9), The control screen management table flag 133 is turned off (S in FIG. 11).
-15), the operator is notified of factors such as uncontrollable factors and exclusion information (see S-16 in FIG. 11 and FIG. 13).

In this case, the subordinate operator cannot perform control unless the control screen is activated again, but the operation is troublesome, and the subordinate MMI management unit receives a table update response message that cannot be controlled. If you do, MMI
The management unit retries (sends the table update request message again)
Since there is a high possibility that control will be possible if this is done, a retry counter is newly provided and the retry counter is fixed if it is not appropriate to perform the corresponding control by checking the control screen management table flag 133 (S-29 in FIG. 9). A check is made to see if it is greater than or equal to the value (m; m can be set arbitrarily) (S-30 in FIG. 11). If it is greater than or equal to m (S-1 in FIG. 11)
5) The subsequent processing is performed, and if it is less than m, the retry counter is incremented by (+1), and the processing (retry) after (S-5 in FIG. 9) is performed again. The retry counter is initialized (= 0) at S-28 in FIG.

As described above, according to the control system of the transmission apparatus of the present invention, when the operator of one system performs screen control while the operator of one system performs screen control, the operator of one system continuously operates. Even when the control is performed, exclusive control is performed, so that accurate screen control can always be realized.

Further, by setting an upper limit on the number of screens to be controlled, even when various information for many transmission devices are displayed on the screens, the operation of the operator does not become too complicated and the response by the control is slow. You don't have to.

[Brief description of drawings]

FIG. 1 is a block diagram showing in principle the configuration of a control system for a transmission device according to the present invention.

FIG. 2 is a diagram showing an embodiment of a control screen management table used in the control system of the transmission device according to the present invention.

FIG. 3 is a diagram showing an example of a screen exclusion table used in a control system for a transmission device according to the present invention.

FIG. 4 is a diagram showing an example of exclusion conditions (bit data) in the screen exclusion table used in the control system of the transmission device according to the present invention.

FIG. 5 is a diagram showing the flow of control signals from the main system during normal operation in the control system for a transmission device according to the present invention.

FIG. 6 is a message format diagram used in the control system of the transmission device according to the present invention.

FIG. 7 is a diagram showing a flow of control signals from a slave system in a normal state in the control system of the transmission device according to the present invention.

FIG. 8 is a diagram showing a flow of screen control in the control system of the transmission device according to the present invention.

FIG. 9 is a flowchart diagram (part 1) of screen control executed by the CPU of each MMI management unit in the control system of the transmission device according to the present invention.

FIG. 10 is a flowchart (part 2) of the screen control executed by the CPU of each MMI management unit in the control system of the transmission device according to the present invention.

FIG. 11 is a flowchart diagram (part 3) of screen control executed by the CPU of each MMI management unit in the control system of the transmission device according to the present invention.

FIG. 12 is a flowchart of screen control executed by the CPU of each MMI management unit in the control system for a transmission device according to the present invention when receiving a table update request message.

FIG. 13 is a time chart diagram when the operators of both systems activate the control screens almost at the same time in the control system of the transmission device according to the present invention.

FIG. 14 is a block diagram showing a configuration of a conventional transmission device control system (No. 1).

FIG. 15 is a block diagram showing a configuration of a conventional transmission device control system (No. 2).

FIG. 16 is a block diagram showing an initial screen of a CRT used in the control system of the present invention and the conventional transmission device.

FIG. 17 is a block diagram showing a screen after the control type of the CRT used in the control system of the present invention and the conventional transmission device is selected.

FIG. 18 is a block diagram showing a screen (No. 1) after selection of the transmission device NO. Of the CRT used in the control system of the transmission device of the present invention and the related art.

FIG. 19 is a block diagram showing a screen (No. 2) after selection of the transmission device NO. Of the CRT used in the control system of the transmission device of the present invention and the related art.

FIG. 20 is a time chart diagram for explaining an operation of a conventional control system for a transmission device.

[Explanation of symbols]

1 Main data system 2 Subordinate data system 3 (3-1, 3-2, 3-3, ...) Transmission device 11,21 MMI management unit 12,22 CPU 13,23 memory 14,24 External storage device 15,25 CRT 5, (5-1, 5-2, 5-3, 5-4) LAN line 16,26 14,40 Communication management unit 17,27,41,44 CPU 18, 28, 42, 45 memory 19, 29, 43, 46 External storage device 131, 231 Control screen management table 132,232 screen exclusion table 133, 233 Control screen management table flag In the drawings, the same reference numerals indicate the same or corresponding parts.

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-61-123336 (JP, A) JP-A-5-53958 (JP, A) JP-A-3-105427 (JP, A) JP-A-5- 173812 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06F 3/00 G06F 9/46 G06F 11/16 G06F 13/00 G06F 15/16

Claims (9)

(57) [Claims] 1. A master data system or a slave data system having the same configuration controls a plurality of common transmission devices, and each data system inputs a control instruction for the transmission device from an operator. It is composed of an MMI management unit equipped with a CPU including a CRT that outputs the result and a communication management unit equipped with a CPU that sends and receives control data to and from the transmission device. Under normal conditions, control from both systems is possible. in the control system of a transmission device, the MMI management unit, and a control screen management table that all of the CRT control screen information currently active is stored, a problem in screen control for all kinds of combinations of control screen come and a screen exclusion table storing screen exclusive data whether exclusive conditions in correspondence with carded whether applied exclusive control is defined, the operator CRT CPU of each MMI management unit when I went to start operation of your screen, from the control screen management table
Acquires all control screen information during startup and
Screen capture data of the control screen related to the start request from the
In addition to gaining, starting from the screen exclusive table
Determine whether exclusion is required from the exclusion conditions of the relevant control screen
The operator can start the screen only when it does not interfere with the subsequent screen control, and the screen can be started.
Between the master system and the slave system, the control screen management table and the
By matching the screen exclusion table, one-sided MM
Even if a failure occurs in the I management section, the control screen management table
A transmission device control system characterized in that the contents are not erased . 2. The control system for a transmission device according to claim 1, wherein when the screen cannot be activated, the operator is notified to end the control screen early. . 3. A control system of the transmission apparatus according to claim 1 or 2, new, said control each MMI management portion
It is turned on when the screen is activated, and the other system's
If the control screen management table flag that is turned off when the control screen management table is updated is provided and the operator continuously operates the control screens for a plurality of items, the flag
A transmission device control system characterized in that exclusive control is applied between individual start-up operations on the basis of the group . 4. A control system for a transmission device according to any one of claims 1 to 3, new to the MMI management portion of the main system and the slave, on a I when starting operation of the control screen
Update the control screen management table of the other system accordingly.
If a control screen management table flag that turns off when the system is activated is set , and the operators of both systems perform control screen startup operations at approximately the same time, then when the master MMI management unit receives a table update request message, When it is recognized that the screen control may be hindered by checking the flag, the table update response message of uncontrollable is transmitted to the slave MMI management unit, and the slave control screen is displayed. A transmission device control system characterized in that screen control is preferentially performed only from the main system without being activated. 5. The control system for a transmission device according to claim 4 , wherein when the control-disabled table update response message is received, the slave MMI management unit sends a table update request message to the master MMI management unit. A transmission device control system characterized by automatically retrying transmission. 6. The control system for a transmission apparatus according to claim 5 , wherein the slave MMI management unit can arbitrarily set the number of retries. 7. The control system of the transmission device according to any one of claims 1 to 6, may be set a maximum number of screens that can be controlled to the MMI manager, operator performs a start operation of the control screen A control system for a transmission device, wherein a control screen is not activated when the number of screens exceeds the maximum number of screens. 8. The control system of the transmission device according to any one of claims 1 to 7, when the MMI manager can not start control screen transmission device is characterized in that also performs notification of the cause Control system. 9. A control system for a transmission device according to any one of claims 1 to 8, excluding condition in said screen exclusive table, control screen information of the current running is started by either the self-system / other-system And whether the transmission device in the currently activated control screen information is the same as the transmission device requested to be controlled or not.