JPH1166483A - Remote supervisory and control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optionally adjust a transmitting and receiving level including a slave station from a master station. SOLUTION: A level measuring instrument M5 can measure the transmitting/ receiving level of the modem M2 of the master station M1 of a remote supervisory and control device and a level adjuster M3 can optionally increase/reduce the transmitting/receiving level of the modem M2. A level measuring instrument R5 can measure the transmitting/receiving level of the modem R2 of the slave station R1 of the remote supervisory and control device and a level adjuster R3 can optionally increase/reduce the transmitting/receiving level of the modem R2. Then the master station M1 fetches a transmitting/receiving level signal measured by the instrument R5 and a transmitting/receiving level signal measured by the instrument M5 to adjust the transmitting and receiving levels of the level adjusters M3 and R3 to a prescribed value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote monitoring and control apparatus for monitoring and controlling a master station such as a control station and a slave station such as a substation by transmitting a monitoring control signal via a transmission line.

[0002]

2. Description of the Related Art FIG. 6 shows an example of a conventional remote monitoring and control device, in which a remote monitoring and control device master station M1 is arranged on a control station system side H1, and a remote monitoring and control device slave station R1 is mounted on a substation system side H2. Is arranged.

The remote monitoring control device master station M1 includes:
A modem M2 including a modulator and a demodulator is provided, and the remote monitoring control device slave station R1 is similarly connected to a similar modem R2 by a transmission line L1. Although not shown, the modem M2 has a transmission terminal on the modulator side and a reception terminal on the demodulator side. Corresponding to these, the transmission terminal on the modulator side of the modem R2 and the demodulator side on the opposite side are connected by a double transmission line. Are connected to each other.

Although not shown, the modem M2 of the remote monitoring and control apparatus master station M1 encodes a switching command signal for a switch or the like to generate a signal and outputs the signal to the modulator, while the signal is input from the demodulator and demodulated. Means for converting the received signal into a monitoring signal is connected. To the modem R2 of the remote monitoring control device slave station R1, means (not shown) for converting a signal demodulated by a demodulator into an opening / closing command for a switch or the like and for converting a monitoring signal into a signal to be passed to the modulator are connected. Have been.

In this configuration, a control command signal is modulated by the modem M2 in the remote monitoring control device master station M1, transmitted through the transmission line L1, and received and demodulated by the modem R2 of the remote monitoring control device slave station R1. Then, the control target is controlled. On the other hand, in the remote monitoring control device slave station R1, the result of controlling the control target is modulated as a monitoring signal by the modem R2, transmitted to the modem M2 of the remote monitoring control device master station M1 via the transmission line L1, and received. The monitoring signal demodulated by the modem M2 is transmitted to the remote monitoring control device master station M1.

The control station system side H1 and the substation system side H2 are generally remote from each other, and
Is a long distance. Further, since the distance is different depending on the respective remote monitoring control devices, the attenuation of the transmission line L1 is different.
And need to be adjusted. Similar adjustments are also made on-site during periodic inspections and transmission abnormalities.

In this case, in order to perform level measurement and level adjustment of the modem M2 of the remote supervisory control device master station M1 and the modem R2 of the remote supervisory control device slave station R1, the coordinator needs to communicate with the remote supervisory control device master station M1. The level measurement and adjustment of the remote supervisory control device master station M1 and the remote supervisory control device slave station R1 were performed using a level meter and a resistance attenuator while communicating with each other by being divided into the supervisory control device substation R1. The resistance attenuator is used in the case of a transmission line accident or the like.

[0008]

However, since the remote monitoring control device master station M1 and the remote monitoring control device slave station R1 make adjustments while confirming transmission / reception measurement data because of the long distance, it takes a long time. There was a problem of inefficiency. Further, when a transmission level trouble occurs, it is necessary to check the transmission / reception levels of the remote monitoring control device master station M1 and the remote monitoring control device slave station R1, and it takes a long time to recover.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a remote monitoring control device capable of efficiently adjusting and measuring a transmission / reception level from a master station in a short time.

[0010]

According to the first aspect of the present invention, there is provided a master station having a master station side modem for modulating and demodulating a monitor control signal, transmitting and receiving a slave station via a transmission line, and a master station and a monitor control section. In a remote monitoring control device having a slave station model that modulates and demodulates a monitoring control signal for exchanging signals and including a slave station that transmits and receives a master station via a transmission line, A slave station level measuring device capable of outputting a slave station level measurement signal obtained by measuring a modem monitoring control signal level, and a slave station side capable of increasing or decreasing the monitoring control signal level of the slave modem by adjusting The master station includes a master station-side level measuring device capable of outputting a master station-side level measurement signal obtained by measuring the monitoring control signal level of the master station-side modem, and a master station-side modem. Monitoring control signal level can be increased or decreased by adjusting The master station-side level adjuster and, if necessary, the slave station-side level measurement signal are taken in via the transmission line, and the master station-side level measurement signal is taken in. , The slave station-side level adjuster is adjusted to a desired monitoring control signal level, and the master station-side level adjuster is adjusted to a desired monitoring control signal level. According to this means, since all transmission and reception levels including the slave station can be adjusted at the master station, only one coordinator is required, and two coordinators are required for the master station and the slave station as in the related art. There is no need for coordinators. In addition, since all the adjusting devices are provided in the master station or the slave station, it is possible to reduce the trouble of transporting and installing each time. Further, unlike the related art, there is no need to communicate with a telephone or the like between the slave station and the master station, and the adjustment can be performed intensively, so that the adjustment time can be greatly reduced and the adjustment can be performed accurately.

According to a second aspect of the present invention, in the remote monitoring control apparatus according to the first aspect, the master station receives a slave station level measurement signal via a transmission line in response to a request from a coordinator, and receives the master station level measurement signal. The slave station-side level adjuster captures the level measurement signal, displays each monitor control signal level on the display panel, and sets each monitor control signal level displayed on the display panel to a predetermined value according to a setting input by a coordinator. And a panel control means for outputting each command signal to the master station level adjuster. According to this means, all transmission / reception levels including the slave station can be adjusted in the master station, so that only one coordinator can work efficiently. Also, there is no need to communicate between the slave station and the master station by telephone or the like as before, and the transmission / reception level is displayed on the display panel and can be adjusted intensively by the panel control means. It can be shortened and can be performed accurately.

According to a third aspect of the present invention, in the remote monitoring control apparatus according to the first aspect, the master station outputs a setting command signal for setting a transmission / reception level regulation value in response to a request from a coordinator; Panel control means for receiving the station-side level measurement signal via the transmission path, and for taking in the master-side level measurement signal and displaying each monitor control signal level on the display panel; By inputting a setting command signal, a command control signal is output to the master station level adjuster such that the master station level measurement signal falls within a predetermined specified value, and the master station level obtained from the master station level meter is obtained. The master station side automatic level control means for outputting the measurement signal to the display panel is provided, while the slave station receives the slave station setting command signal output from the command panel to receive the slave station level signal. A slave station that outputs a command control signal to the slave station-side level adjuster so that the measurement signal falls within a specified value, and outputs a slave station-side level measurement signal obtained from the slave station-side level meter to the display panel. A side automatic level control means is provided. According to this means,
When an adjustment request is made by the coordinator from the command panel, a setting command signal is output to the master station automatic level control means and the slave station automatic level control means, and the corresponding prescribed values are set in both means. Accordingly, the master station automatic level control means outputs a command control signal to the master station level adjuster so that the master station level measurement signal falls within the specified value, and outputs the level obtained by the master station level meter. A measurement signal is output. On the other hand, the slave station-side automatic level control means outputs a command control signal to the slave station-side level adjuster so that the slave station-side level measurement signal falls within the specified range, and measures the level measured by the slave station-side level meter. A signal is output. These are displayed on the display panel. Therefore, since all transmission / reception levels including the slave station can be adjusted from the master station, one coordinator can reduce the number of coordinators. Further, unlike the related art, there is no need to make a telephone call or the like between the slave station and the master station, and the adjustment can be performed intensively. Therefore, the adjustment time can be greatly reduced, and the adjustment can be performed accurately.

According to a fourth aspect of the present invention, in the remote monitoring control apparatus according to the first aspect, the master station sets a transmission / reception level regulation value in response to a request for a slave station side level measurement signal at a predetermined cycle. And a panel control means for taking in the master station side level measurement signal and displaying each monitoring control signal level on the display panel, and setting the master station side from the command panel. A command control signal is output to the master-side level adjuster so that the master-side level measurement signal falls within a predetermined value by the input of the command signal, and the master-side level measurement signal obtained from the master-station level meter And a master station-side automatic level control means for outputting the master station side level measurement signal to the predetermined level by inputting the slave station side setting command signal from the command panel. A slave station-side automatic level control means for outputting a command control signal to the slave station-side level adjuster so as to fall within the fixed value and outputting a slave station-side level measurement signal obtained from the slave station-side level meter to the display panel is provided. It is like that. According to this means, when there is an adjustment request from the command panel at a predetermined cycle, a setting command signal is output to the master station automatic level control means and the slave station automatic level control means, and the corresponding specified values are set in both means. You. Accordingly, the master station automatic level control means outputs a command control signal to the master station level adjuster so that the master station level measurement signal falls within the specified value, and outputs the level obtained by the master station level meter. A measurement signal is output. On the other hand, the slave station-side automatic level control means outputs a command control signal to the slave station-side level adjuster so that the slave station-side level measurement signal falls within the specified range, and measures the level measured by the slave station-side level meter. A signal is output. These are displayed on the display panel. Therefore, since all transmission / reception levels including the slave station can be adjusted from the master station, one coordinator can reduce the number of coordinators. Further, unlike the related art, there is no need to communicate with a telephone or the like between the slave station and the master station, and the adjustment can be performed intensively, so that the adjustment time can be greatly reduced, and the adjustment can be performed accurately.

[0014]

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

FIG. 1 is a configuration diagram of a power system monitoring and control apparatus according to a first embodiment of the present invention. In FIG. 1, the same reference numerals as those in FIG. ing.

In FIG. 1, the remote monitoring control device master station M1
, A level measuring device M5 and a level adjusting device M
3 are connected. On the other hand, a level measuring device R5 and a level adjusting device R3 are connected to the modem R2 of the remote monitoring control device slave station R1.

Here, the level measuring device M5 enables measurement of the transmission and reception level of the modem M2 of the remote monitoring control device master station M1, and the level adjuster M3 can arbitrarily increase and decrease the transmission and reception level of the modem M2. It is assumed that. The level measuring device R5 is capable of measuring the transmission / reception level of the modem R2 of the remote monitoring control device slave station R1, and the level adjusting device R3 is capable of arbitrarily increasing / decreasing the transmission / reception level of the modem R2. is there. Then, the remote monitoring control device master station M1 receives the transmission / reception level signal measured by the level measuring device R5 of the remote monitoring control device slave station R1 and the transmission / reception level signal measured by the level measuring device M5 of the remote monitoring control device master station M1. The transmission / reception level between the level adjuster M3 and the level adjuster R3 can be adjusted to a predetermined value.

In this configuration, each transmission / reception level of the level measuring device M5 and the level measuring device R5 is arbitrarily fetched in response to a request from the remote monitoring control device master station M1. Then, a command is sent to the level adjuster R3 and the level adjuster M3 so that the transmission / reception level becomes a predetermined value, and the level adjuster R3 and the level adjuster M3 are adjusted.

As described above, according to the first embodiment, since all the transmission and reception levels including the remote monitoring control device slave station R1 can be adjusted in the remote monitoring control device master station M1, only one coordinator is required. As described above, the number of coordinators can be reduced without requiring two coordinators in the master station and the slave station. In addition, since all the adjusting devices are provided in the master station or the slave station, it is possible to reduce the trouble of transporting and installing each time. Further, unlike the related art, there is no need to communicate with a telephone or the like between the slave station and the master station, and the adjustment can be performed intensively, so that the adjustment time can be greatly reduced and the adjustment can be performed accurately.

FIG. 2 is a block diagram of a power system monitoring and control apparatus according to a second embodiment of the present invention. In FIG. 2, the same reference numerals as those in FIG. ing.

In FIG. 2, the remote monitoring control device master station M1
, A level measuring device M5 and a level adjusting device M
3, the panel control means S2, and the display panel S1 are connected. On the other hand, a level measuring device R5 and a level adjusting device R3 are connected to the modem R2 of the remote monitoring control device slave station R1.

Here, the level measuring device M5 enables measurement of the transmission and reception level of the modem M2 of the remote monitoring control device master station M1, and the level adjuster M3 can arbitrarily increase and decrease the transmission and reception level of the modem M2. It is assumed that.

The display panel S1 displays a transmission / reception level measurement signal measured by the level measuring device M5 and the level measuring device R5. Panel control means S
Reference numeral 2 indicates that the transmission / reception level measurement signal is displayed on the display panel S1 at the request of the coordinator, and the transmission / reception levels of the level adjuster M3 and the level adjuster R3 are set to predetermined values.

The level measuring device R5 can measure the transmission / reception level of the modem R2 of the remote monitoring control device slave station R1, and the level adjuster R3 can arbitrarily increase / decrease the transmission / reception level of the modem R2. Is what you do.

With this configuration, when there is a request from the remote monitoring control device master station M1 by the coordinator, the panel control means S2 takes in the transmission and reception levels of the level measuring devices M5 and R5 and displays them on the display panel S1. Further, when the adjuster inputs the setting, the panel controller S2 instructs the level adjuster R3 and the level adjuster M3 so that the transmission / reception level becomes a predetermined value, and the level adjuster R3 and the level adjuster M3 are set to the predetermined values. Adjusted.

As described above, according to the second embodiment, all of the transmission and reception levels can be adjusted by one coordinator from the remote monitoring control device master station M1. In addition, the remote monitoring control device master station M1
Since the transmission and reception levels can all be grasped by the display panel S1 and can be adjusted by the panel control means S2, the adjustment can be made in a short time and the recovery can be made quickly.

FIG. 3 is a diagram showing a third embodiment of the present invention. In FIG. 3, the same reference numerals as those in the first embodiment shown in FIG. 1 and the second embodiment shown in FIG. A portion or a corresponding portion is shown.

In FIG. 3, the remote monitoring control device master station M1
Is provided with a panel control means S2 and an automatic level control means E1, and connects the display panel S1 and the command panel S3. On the other hand, the remote monitoring control device slave station R1
Has automatic level control means E2. The level measuring device M5, level adjusting device M3, and modem M2 shown in FIG.
The illustration of the level meter R5 and the level adjuster R3 is omitted.

Here, the panel control means S2 displays the level measurement signal of the remote monitoring control device slave station R1 and the level measurement signal of the remote monitoring control device master station M1 on the display panel according to the request of the coordinator from the command panel S3. Display on S1.

The automatic level control means E1 includes a command panel S
3 and adjusts the level adjuster based on the command signal from the controller 3 and outputs a measurement result transmission signal. Command panel S3
The adjustment request from the adjuster is output as a command transmission signal to the automatic level control means E1 and the automatic level control means E2.

The automatic level control means E2 includes a command panel S
3 and adjusts the level adjuster based on the command transmission signal, and outputs a measurement result transmission signal.

Next, the processing will be described with reference to FIG.
First, in the command panel S3, when there is an adjustment request from the coordinator, the transmission / reception level attenuation amount setting command transmission signal D1 is output to the automatic level control means E1 and the automatic level control means E2, and the specified values are respectively set. The automatic level control means E1 and the automatic level control means E2 take in the level measurement signals from the corresponding level measuring devices (101, 10).
2). The captured level measurement signals are stored as measurement results (103).

Next, the automatic level control means E1 and the automatic level control means E2 determine whether or not the measurement result is within a specified value. If the measured result is outside the specified value, a command for adjusting the corresponding level adjuster is output. (105). Then, the adjustment result is stored (106). As a result, the corresponding level adjusters of the automatic level control means E1 and the automatic level control means E2 are adjusted so that the amount of attenuation is within a specified value. As a result, the level is measured by each level measuring device, and this is measured as a transmission / reception level measurement result transmission signal D2 by the panel control means S2
And displayed on the display panel S1.

As described above, according to the third embodiment, when the coordinator makes an adjustment request arbitrarily, first, each transmission / reception level is measured, and when the measurement result is out of the specified range, the manual operation is performed so as to be within the specified value. The level adjuster is adjusted without intervention, and the result is displayed. Therefore, adjustment can be completed in a short time,
In the case of transmission failure, the recovery time can be reduced.

FIG. 5 is a diagram showing a fourth embodiment of the present invention. In the fourth embodiment, the transmission / reception level is monitored at a predetermined cycle so that the transmission / reception level is always within a specified value. Is to be adjusted.

Next, the processing will be described with reference to FIG.
First, in the command panel S3, when the timer reaches a predetermined cycle, a transmission / reception level attenuation amount setting command transmission signal D1 is output to the automatic level control means E1 and the automatic level control means E2, and specified values are set. Each level measurement signal is taken from a corresponding level measurement device (201, 20).
2). The received transmission / reception levels are stored as measurement results (203).

Next, the automatic level control means E1 and the automatic level control means E2 determine whether or not the measurement result is within a specified value. A command is output (205). Then, the adjustment result is stored (206). As a result, the corresponding level adjusters are adjusted so that the amount of attenuation of the automatic level control means E1 and the automatic level control means E2 is within a specified value. This result is measured by each level meter,
This is taken into the panel control means S2 as a transmission / reception level measurement result transmission signal D2 and displayed on the display panel S1.

As described above, according to the fourth embodiment, first, each transmission / reception level is measured by the timer cycle, and when the measurement result is out of the specified range, the level is adjusted without manual operation so as to be within the specified value. The instrument is adjusted and the result is displayed. Therefore, the transmission / reception level can always be maintained within the specified range, and further, no manpower is required.

[0039]

As described above, according to the first aspect of the present invention, all transmission / reception levels including the slave station can be adjusted in the master station.
The number of coordinators can be reduced without the need for two coordinators at the master station and slave stations, and all adjustment equipment is provided at the master station or slave station, reducing the labor of transporting and installing each time. It is not necessary to make a telephone call or the like between the slave station and the master station as in the prior art, and the adjustment can be performed intensively, so that the adjustment time can be greatly reduced and the adjustment can be performed accurately.

According to the invention of claim 2, in the master station,
Since all transmission / reception levels including the slave station can be adjusted, one coordinator can work effectively, eliminating the need to communicate between the slave station and the master station by telephone, etc. as in the past. Since the transmission / reception level is displayed on the display panel and can be adjusted intensively, the adjustment time can be greatly reduced and can be performed accurately.

According to the third aspect of the present invention, since all the transmission and reception levels including the slave station can be adjusted from the master station, one coordinator can reduce the number of coordinators. Further, unlike the related art, there is no need to make a telephone call or the like between the slave station and the master station, and the adjustment can be performed intensively. Therefore, the adjustment time can be greatly reduced, and the adjustment can be performed accurately.

According to the fourth aspect of the present invention, since all of the transmission and reception levels including the parent station can be adjusted in a predetermined cycle, the number of coordinators can be reduced, and the transmission and reception level can always be maintained at a predetermined value. .

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a remote monitoring control device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a remote monitoring control device according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram of a remote monitoring control device according to a third embodiment of the present invention.

FIG. 4 is a flowchart illustrating a process according to a third embodiment.

FIG. 5 is a flowchart illustrating a process according to a fourth embodiment.

FIG. 6 is a configuration diagram showing a conventional remote monitoring control device.

[Explanation of symbols]

 M1 Remote monitoring control device master station M2, R2 Modem M3, R3 Level adjuster M5, R5 Level measuring device E1, E2 Automatic level control means R1 Remote monitoring control device slave station L1 Transmission line S1 Display panel S2 Panel control means S3 Command panel D1 Transmission / reception level attenuation setting command transmission signal D2 Transmission / reception level measurement result transmission signal H1 Control station system side H2 Substation system side

Claims (4)

[Claims] 1. A master station having a master station modem for modulating and demodulating a monitor control signal, a master station transmitting and receiving a slave station via a transmission line, and a monitor control signal for exchanging the monitor control signal with the master station. A remote monitoring control device having a slave station model that modulates and demodulates the slave station and a slave station that transmits and receives the master station via a transmission line, wherein the slave station sets a monitoring control signal level of the slave station modem. A slave station-side level measuring device that can output a slave station-side level measurement signal obtained by measurement and a slave station-side level adjuster that can increase or decrease the monitoring control signal level of the slave station modem by adjusting the same are provided. On the other hand, the master station is a master station side level measuring device capable of outputting a master station side level measurement signal obtained by measuring a monitor control signal level of the master station side modem, and monitoring control of the master station modem. Signal level can be increased or decreased by adjusting The master station side level adjuster is provided, and the slave station side level measurement signal is taken in via a transmission line as necessary, and the master station side level measurement signal is taken in based on each of these level measurement signals. hand,
The slave station-side level adjuster is adjusted to a desired monitor control signal level via a transmission path, and the master station-side level adjuster is adjusted to a desired monitor control signal level. Remote monitoring control device. 2. The master station receives the slave station level measurement signal via a transmission line in response to a request from a coordinator, and receives the master station level measurement signal to adjust each monitoring control signal level. Displayed on the display panel, the monitoring station control unit and the master station side level adjuster so that each monitoring control signal level displayed on the display panel by the setting input of the coordinator becomes each predetermined value. 2. The remote monitoring control device according to claim 1, further comprising a panel control unit that outputs each command signal. 3. The master station fetches, via a transmission line, a command panel for outputting each setting command signal for setting a regulation value of a transmission / reception level in response to a request from a coordinator, and the slave station side level measurement signal. Panel control means for taking in the master station level measurement signal and displaying each monitoring control signal level on a display panel; and inputting a master station setting command signal output by the command panel, the master station side A command control signal is output to the master station level adjuster so that the level measurement signal falls within a predetermined specified value, and the master station level measurement signal obtained from the master station level meter is displayed on the display panel. And the master station side automatic level control means for outputting to the panel control means, while the slave station receives a slave station side setting command signal output by the command panel. A command control signal is output to the slave station-side level adjuster so that the slave station-side level measurement signal falls within a predetermined specified value, and the slave station-side level measurement signal obtained from the slave station-side level meter is displayed on the display panel. 2. The remote monitoring control apparatus according to claim 1, further comprising a slave station-side automatic level control means for outputting to the panel control means for displaying. 4. The master station receives a command panel for outputting a setting command signal for setting a regulation value of each transmission / reception level and a master station-side level measurement signal and a slave station-side level measurement signal at predetermined intervals. Panel control means for displaying the respective monitor control signal levels on a display panel, and controlling the master station-side level measurement signal so as to fall within a predetermined value by inputting the master station-side setting command signal from the command panel. Master station-side automatic level control means for outputting a command control signal to the station-side level adjuster, and outputting to the panel control means a master station-side level measurement signal obtained from the master station-side level meter so as to be displayed on a display panel; On the other hand, the slave station adjusts the slave station level so that the slave station level measurement signal falls within a predetermined value by input of the slave station setting command signal from the command panel. A slave station-side automatic level control unit that outputs a command control signal to the adjuster and outputs the slave station-side level measurement signal obtained from the slave station-side level measurement device to the panel control unit so as to display the display panel. The remote monitoring control device according to claim 1, wherein: