JP2886445B2 - System monitoring and control equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system monitoring and control device for monitoring the operation and operation of a controlled device from the start time to its scheduled end time.

[0002]

2. Description of the Related Art As a system monitoring control device for monitoring the operation and operation of one or a plurality of controlled devices via a communication line such as a LAN, for example, a master classroom control device is arranged in one master classroom. A system in a distance learning system that transmits the lecture contents (audio and video) of the instructor in the classroom to other general classroom control devices, displays it on a large classroom display, and allows the students here to learn various subjects. There is a monitoring control device.

In such a distance learning system,
At the start and end of the lesson, the instructor in the master classroom performs start and end operations.If the instructor performs an end operation by mistake while the class is in progress, the operation of the entire system ends. Thus, there is a problem that a complicated operation of restarting the lesson program is required.

[0004] In response to such a problem, when the termination operation is performed, the system supervisory controller checks with the instructor whether the termination operation currently performed is valid or invalid.
A method of terminating the operation under the condition of “valid” operation, or when the end time comes, a stop signal is transmitted from the system monitoring control device to the master classroom control device, and the master classroom is automatically A method of stopping the operation of the control device for use has been considered.

[0005]

However, even if a method for confirming the validity or invalidity of the termination operation is adopted, if the instructor performs the termination operation again by mistake, the operation of the entire system is stopped. Problems arise.

In the method of automatically stopping at a fixed time, it is possible to prevent the operation of the system from being stopped due to an erroneous operation. However, if the class is later than the scheduled end time, the operation is forcibly stopped. Therefore, there is a problem that the class is discontinued halfway.

SUMMARY OF THE INVENTION It is an object of the present invention to prevent an erroneous operation by disabling a stop operation of a controlled device from a use start time to a scheduled end time of the controlled device, and to prevent a user who handles the controlled device. Is to provide a system monitoring and control device that can be used even when the end-of-use time is later than expected due to the fact that it can be finally stopped.

[0008]

In order to achieve the above object, the present invention provides a timer device for outputting current time data,
Time comparing means for comparing the data of the operation start time and the scheduled end time of the controlled device stored in the storage device with the current time data output from the timer device; If the time is between the operation start time and the scheduled end time, a signal for prohibiting the operation stop operation in the controlled device is released. And an erroneous operation prevention control device for transmitting a signal to the controlled device.

[0009]

According to the above means, the controlled device is in a state where the stop operation is physically impossible between the operation start time and the scheduled end time, and is in a state where the stop operation is possible after the scheduled end time. .

Thus, the system can be prevented from being stopped even if an erroneous operation stop operation is performed between the use start time of the controlled device and the scheduled end time, and the operation stop operation by the user after the scheduled end time is performed. It can be stopped arbitrarily and can be applied even when the use end time is later than expected.

[0011]

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

FIG. 1 is a block diagram showing an embodiment of a system monitoring and control device according to the present invention. The system monitoring and control device 1 of this embodiment includes a timer device 10 for outputting current time data, a storage device. Comparing the data of the operation start time and the scheduled end time of the controlled device stored in 11 with the current time data output from the timer device 10;
If the current time is between the operation start time and the scheduled end time, a signal prohibiting the operation stop operation in the controlled device is transmitted to the controlled device. And an erroneous operation prevention control device 12 for transmitting a signal for canceling the stop operation prohibition state.

Here, as the controlled device, a master classroom control device 2 in a remote learning system is applied. The master classroom control device 2 is connected to a television camera 4 for photographing the lecture situation of the instructor 3, a large display 5 and a small display 6, and provides a class to the students in the master classroom with the large display 5. The information is transmitted to the other control devices for general classrooms 7a to 7n, the lecture status of the instructor 3 is displayed on the large classroom displays 8a to 8n, and the students here are allowed to learn various subjects. The system monitoring control device 1, the master classroom control device 2, and the general classroom control devices 7a to 7n are connected by a communication line 9.

FIG. 2 shows an example of the display contents of the small display 6 connected to the master classroom control device 2. On the right side of the screen, an "attendance" icon 61 operated to grasp the attendance status, a test An "examination information" icon 62 operated when transmitting information to each general classroom, and a "question acceptance" icon 6 operated when accepting a question from a student.
3. "Question permission" icon 64 operated when permitting a question, "End" icon 6 operated when ending a lecture
5 is displayed, and by specifying this “end icon” 65 with a pointing device (not shown), the master classroom control device 2 and the general classroom control devices 7a to 7a to
7n can be stopped.

A menu of various subject names is displayed on the left side of the screen of the display 6, and a subject name to be lectured can be designated here.

FIG. 3 is a flowchart showing the operation of the erroneous operation prevention control device 12 for preventing the instructor 3 from erroneously operating the "end" icon 65 and stopping the operation during the lesson.

First, the erroneous operation prevention control device 12 accesses the storage device 11 to read data of the operation start time and the scheduled end time of the master classroom control device 2 (controlled device) (step 200).

Next, the erroneous operation prevention control device 12 stores the operation start time and the scheduled end time in the main storage unit in the device itself, and notifies the timer device 10 of the time (step 201).

Next, a time notification from the timer device 10 is monitored (step 202). Upon reaching the notified time, the timer device notifies the erroneous operation prevention control device 12 of time data representing the time.

The erroneous operation prevention control device 12 includes a timer device 10
Is determined (step 203), and if so, a signal prohibiting the stop operation is transmitted to the master classroom control device 2 which is the controlled device (step 204). ).

If it does not coincide with the operation start time, it is next determined whether or not it coincides with the expected end time (step 20).
5) If this is the case, a signal for canceling the stop operation prohibition is transmitted to the master classroom control device 2 which is the controlled device (step 206).

Accordingly, the master classroom control device 2 as the controlled device receives the stop operation prohibition signal and continues to operate until the instructor 3 operates the "end" icon 65 for a period until the signal for canceling the operation is received. The operation is invalidated.

However, the prohibition state of the stop operation is released after the scheduled end time, and the instructor 3 operates the “end” icon 65 to freely stop the operation of the master classroom control device 2. , You can end the class.

[0024]

As described above, according to the present invention, the timer device for outputting the current time data, the data of the operation start time and the scheduled end time of the controlled device stored in the storage device, and the timer device A time comparison unit that compares the current time data output from the control unit with the current time data, and if the result of the comparison by the time comparison unit is a time between the operation start time and the scheduled end time, When the signal for prohibiting the operation stop operation has passed the scheduled end time, the erroneous operation prevention control device for transmitting the signal for releasing the prohibition state of the operation stop operation to the controlled device is provided.
Prevents erroneous operation stop operation from the start time of use of the controlled device to the scheduled end time, and allows the user to freely stop the operation after the scheduled end time by the user's operation stop operation. It can be applied to a later case.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram illustrating a display example of a display screen of a controlled device.

FIG. 3 is a flowchart illustrating an operation of the erroneous operation prevention control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... System monitoring control apparatus, 2 ... Master classroom control apparatus (controlled apparatus), 10 ... Timer apparatus, 12 ... Misoperation prevention control apparatus, 11 ... Storage apparatus, 65 ... End icon.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G09B 5/08 G05B 23/02

Claims (1)

(57) [Claims] 1. A system monitoring and controlling device for monitoring a controlled device from an operation start time to a scheduled end time, comprising: a timer device for outputting current time data; and a controlled device stored in a storage device. Time comparison means for comparing the data of the operation start time and the scheduled end time with the current time data output from the timer device, and the result of the comparison by the time comparison means is the current start time and the scheduled end time. In the case of a time between the two, the signal for prohibiting the operation stop operation in the controlled device is transmitted to the controlled device if the scheduled end time has passed, and the signal for releasing the prohibition state of the operation stop operation is transmitted to the controlled device. A system monitoring control device comprising a prevention control device.