JP2001346342A - Remote controlling terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible for an operator in the field to understand a system on site entirely, to control a device remotely from the site, and to send a report on local situations to an office. SOLUTION: Applicable to a power system monitoring and controlling system structured by connecting a server and terminals via a network, the terminal is designed to be portable and mobile so as to be capable of communicating with the server. The mobile terminal is provided with a copy-processing means for generating the same information of the current state of a power system with that of the server based on data transmitted from the server, a main storage means for storing the information of the current state of the power system copy-processed, a displaying means for reading out the information of the current state of the power system stored in the main storage means to display it on a displaying device, and a control command making means for making a remote control command for the relevant devices by indicating the devices in the information which is displayed on the displaying device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of mobile terminal devices which are used while being moved by a mobile body such as an automobile, and which includes, for example, distribution system monitoring and control software using communication means such as the Internet or an intranet. The present invention relates to a remote operation terminal applied when operating a power distribution system by performing communication between a server and a mobile terminal as a browser that executes a human interface.

[0002]

2. Description of the Related Art In a conventional distribution automation system for operating a distribution system, the operation of distribution line equipment is performed as follows. Control remote control devices directly from the distribution automation system. When it is necessary to operate the system while checking the situation at the site, or for non-remote devices, the on-site operator and the operator of the sales office communicate with each other by radio, etc. Operate manually.

[0003] On the other hand, in the conventional WWW technology based on the Internet / intranet, when a group of information (hereinafter, referred to as content) is displayed by a browser, the browser accesses the WWW server via a network and accesses the content. A method has been adopted in which content is transferred to a browser via a network and then displayed.

[0004]

In the above-mentioned conventional power distribution automation system, in the case of on-site work required for operation of the power distribution system, it is possible to directly grasp the entire system state from the on-site operator. Can not. -Regarding the control of equipment that can be performed only at the site, it is necessary to communicate with the operator of the sales office that supervises the operation wirelessly and operate it, and report the operation result again wirelessly. There is a problem that the work efficiency of the on-site operator is poor.

In general WWW technology, as described above, it takes time to transfer contents from a server to a browser. Therefore, it takes time to display contents held by a WWW server on a browser, and it is momentarily. In the monitoring and control of the distribution system in which the information content changes, it is necessary to complete the screen display within a fixed time including such a change, but it is not possible to satisfy the requirements of the high-speed display that can be adapted thereto.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a high-speed display of the state of a distribution system that is processed and managed by a server installed in a business office while reflecting changes in the state. To provide a distribution line remote operation terminal that allows the operator to grasp the entire system at the site, control equipment remotely from the site, and provide information on the situation to the sales office. It is an object.

[0007]

A remote operation terminal according to claim 1 of the present invention is applied to a power system monitoring and control system configured by connecting a server and a terminal via a network. Copy processing for creating a mobile terminal that is portable and capable of communicating with the server, wherein the mobile terminal creates power system current state information equivalent to the server based on data transmitted from the server. Means, main storage means for storing the power system current state information subjected to the copy processing, display means for reading the power system current state information stored in the main storage means and displaying it on a display device, and Control command creating means for creating a remote control command for the device by indicating the device in the displayed power system current state information.

Therefore, when there is a state change in the power system, it is processed by the server and the current system state is updated, managed and distributed by the server. The change information is received by the mobile terminal via the transmission means. The copy processing means creates the same system current state information as the server, stores it in the main storage means under the control of the main storage data management means, and displays it on the display device by the display means. Further, a control command is created for the displayed device by the control command creation unit, transmitted to the server via the transmission unit, and the distribution system monitoring control application of the server remotely controls the automatic device of the distribution system. . As a result, the overall system status can be immediately monitored using a mobile terminal at the site, not at the office, and the device can be remotely controlled.

A remote operation terminal according to a second aspect of the present invention is the remote operation terminal according to the first aspect, further comprising a setting content creation unit for creating status information of a corresponding device instead of or in addition to the control command creation unit. The state setting contents are reflected in the distribution system state information. Therefore, for the devices in the power distribution system diagram displayed on the display device of this terminal, the post-operation status of manual devices operated on site is set on the display device, and the status of devices that do not receive information online is immediately reported to the server. In the distribution system status information of the distribution system.

[0010] The remote operation terminal according to [Claim 3] is connected to a server via a network in a business office and updates the system status at the server when the remote operation terminal is not brought to the site. When the mobile terminal is disconnected from the network in the business office, if there is an update in the state of the power distribution system in the server within the time until the switching to another information transmission method after the disconnection, the update is performed. Content is now sent from the server to the mobile terminal. Therefore, when this terminal is not carried to the site, it is transmitted to the server on the network in the business office and always kept in the same state of the latest power distribution system as the server, so that the latest power distribution system can be used in case of emergency dispatch to the field. It can be carried to the site immediately without having to reload the state into this terminal.

If the state of the server is updated in a short time after the terminal is disconnected from the network of the business office and before switching to the information transmission method using a communication means such as a mobile phone or a PHS, after the switching, Unupdated update data can be transmitted from the server to the mobile terminal to recover the state of the mobile terminal to the latest one.

According to a fourth aspect of the present invention, in the remote operation terminal according to the first aspect, the system diagram information copied by the copy processing means includes a figure stored in advance as a geographical range and a current time. A newly input figure is superimposed as a proper range, and only the missing part that does not satisfy both of them is transmitted and copied. Therefore, only the transmission in the insufficient range is required, and necessary information can be sent in a short time.

According to a fifth aspect of the present invention, there is provided an electric power system monitoring and control system, wherein the remote operation terminal duplicates data from the server on a network connecting the remote operation terminal and the server. An information relay device having a relay function of transferring the data to the server, the information relay device including means for updating the copy data of the data from the server to the latest state at predetermined time intervals. Therefore, it is possible to update the copy data in a short time.

In the power system monitoring and control system according to claim 6, the time interval for updating the duplicated data to the latest state is set according to the frequency of a transfer request from the mobile terminal for each data. I did it. Therefore, an appropriate copy update can be performed according to the data provision request frequency.

According to a seventh aspect of the present invention, in the power system monitoring and control system according to the fifth aspect, the time interval for updating the copy data to the latest state is performed according to the data change frequency of each data from the mobile terminal. I made it. Therefore, an appropriate copy can be updated according to the data change frequency.

In the power system monitoring and control system according to claim 8, in claim 5, the time interval for updating the copy data to the latest state is performed based on the data change frequency on the server. . Therefore, it is possible to update the copy efficiently in accordance with the data change frequency on the server.

According to a ninth aspect of the present invention, in the remote operation terminal according to the first aspect, reading means for reading information of an IC card in which control right information relating to a power distribution device is written is provided, and only a person having a specific control right is provided. Can be operated.
Therefore, it is possible to prevent an unspecified number of persons who do not have the authority to operate the power distribution device from controlling the device without permission, and prevent a plurality of operators from controlling the same device at the same time.

[0018] The remote operation terminal according to claim 10 is:
In claim 1, the mobile terminal has a CD-ROM.
A means for reading information on a medium such as the above is provided so as to be linked to the position information of the distribution system diagram, and the distribution system diagram is displayed with map information stored in the medium or the like as a background. Therefore, the map information can be displayed as a background by linking to the position information of the power distribution system diagram indicating the power distribution device such as the switch displayed on the display device.

The remote control terminal according to claim 11 is
In claim 1, the mobile terminal is provided with GPS satellite information receiving means such as a GPS receiver, and the vehicle position is displayed on a map background. Therefore, the latitude and longitude of the vehicle position and the like are calculated from the coordinate information and time information of the satellite transmitted by the artificial satellite, and the current position of the own vehicle equipped with the terminal is displayed on a display device of the terminal with a map as a background, Further, the position information can be transmitted to the server of the business establishment via the transmission means with the server, and the vehicle position can be displayed on the display of the client installed in the business establishment with the same map background.

[0020] The remote operation terminal according to claim 12 is:
[Claim 1] In the present invention, a means for capturing video information is provided in the mobile terminal, and a video of the site situation is displayed on a display of a client installed in the business office. Therefore, image information of the site situation using a digital camera, a VTR, or the like can be captured, and this image can be transmitted to the server of the business establishment via transmission means with the server, and the image of the site situation can be displayed on the display of the client in the business establishment. .

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) (corresponding to [Claim 1]) FIG. 1 is a configuration diagram showing an embodiment of a distribution line remote operation terminal according to the present invention. In FIG. 1, a sales office 1 that controls the operation of the distribution system has a distribution control current state information for distribution system monitoring control, a monitoring control server 11 that executes a monitoring control application, and a human related to the monitoring control. Console browser 12 for executing the interface
And a telecon master station (TC) that relays monitoring and control information of local devices at
M) 13 is connected via the LAN 14.

Note that 15a and 15b are mobile terminals detachable from the LAN 14, and have a portable structure. The mobile terminal 15 at the end of the dotted arrow indicates a state after moving to a site or the like, and indicates a state in which the mobile terminal 15 is electrically connected to an intranet or the like via the communication unit 151. In FIG. 1, a circle indicated by reference numeral 16 is a connection unit as a communication unit.

When such a system is used, an information relay device called a proxy server may be interposed between the mobile terminal 15 and the server 11. The proxy server has several functions, one of which is a caching function. By using this caching function, when the content once referred to by the client passes through the proxy server, the content is stored in the cache area.

With this data cache, when a request to view the content is issued again from the mobile terminal, network data transfer between the proxy server for returning data in the cache area and the server can be omitted, and Quickly respond to terminal requests.

The substation 2 serving as a power source for supplying power to the distribution line is provided with a teleconverter terminal (TCR) 21 for processing monitoring control information of local devices on a substation basis. A communication unit 22 such as a communication line is connected to the TCR 21, and a slave station 23 that processes monitoring control information in a one-to-one correspondence with a distribution device such as a switch is connected beyond the TCR 21. . Until now, distribution system monitoring and control has been performed only with a fixed correspondence from the sales office.

However, the server and the browser are connected by applying the Internet / intranet technology, and the distribution system monitoring and control system (the server and the browser are connected by applying the Internet / intranet technology) by the high-performance web-top power system monitoring and control system. When the state of the power system changes, the server updates the online data, and at the same time distributes only the updated part to multiple other browsers by multicasting, and by updating the data of this browser, the browser is the same as the server Power system monitoring and control system that realizes real-time performance by installing high-performance middleware that does not require browsers to access content via the network when displaying content by having content replication If the beam), as shown in FIG. 2, for example device that can be connected to the intranet 3 is compatible and without any particular fixing the location.

As a result, the mobile terminal 15 capable of transmitting information to the server of the high-performance web-top power system monitoring and control system by connecting to the intranet 3 via the communication means 151 such as a mobile phone or a PHS is replaced by the high-performance web-top power. It can be a browser of the system monitoring and control system.

FIG. 3 is a block diagram of a functional unit for performing information processing between a server and a browser in the high performance webtop power system monitoring and control system. Server 1
The data updated by the one monitoring control application unit 111 is updated by the main memory data management unit 112 and the transmission unit 113 having improved performance, and at the same time, only the updated part is distributed to a plurality of browsers. The distributed update data is transferred to the main memory data management unit 122 through the transmission unit 121 on the browser 12 with high performance. The main storage data management unit 122 creates a copy of the latest distribution system state data held by the server based on the updated data, and stores the copy in the main storage unit 123.

The display processing unit 124 reads out the data in the main storage unit 123 and displays the current state of the power distribution system on the display device 125. The system diagram can be displayed as a map system type system diagram that determines and displays the display position of the device corresponding to the map coordinates, a skeleton type system diagram that is not linked to the map position, or the like.

FIG. 4 is a diagram showing an example of a distribution system diagram displayed on the display device. As a result, even if the mobile terminal is carried to the site, the system information updated by the server is always distributed to the mobile terminal, and the mobile terminal simultaneously becomes the latest power distribution system state, and can immediately display the state.

Further, when the pointing device 126 shown in FIG. 3 designates a device to be controlled in the power system diagram displayed on the display device and further designates the control contents for the device, the control command creating section 127 specifies the device to be controlled. Control instruction information is created and transmitted from the transmission unit 121 to the monitoring control application unit 111 via the transmission unit 113 of the server, and the remote control of the automatic power distribution device is performed by the processing there. According to the present embodiment, remote control of automatic power distribution equipment can be performed from the site.

(Second Embodiment) (corresponding to [Claim 2]) The overall configuration of the second embodiment is the same as that of FIG. FIG. 5 is a block diagram of a functional unit for performing information processing between a server and a browser in the high-performance web-top power system monitoring and control system as in FIG. 5, the same functional portions as those in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, when the content of the status setting for the designated device is designated, status information for the target device is created and transmitted to the server. As shown in FIG.
The point is that a state setting content creation unit 128 is provided instead of the control command creation unit 127 shown in FIG.

Therefore, the operation is the same as that of the control designation method described in the first embodiment.
When the user designates a state setting target device in the power system diagram displayed on the display device in step 6 and further specifies the state setting content for the device, the state setting content creation unit 128 creates state information of the target device and transmits the information. From the unit 121 to the transmission unit 1 of the server
The information is transmitted to the monitoring control application unit 111 via the server 13 and the distribution system status information of the server is updated by the processing there. According to the present embodiment, it is possible to set the state of the automatic power distribution equipment even from the site.

Third Embodiment (corresponding to [Claim 3]) Although FIG. 1 shows the mobile terminals as 15a and 15b, one of the mobile terminals 15a and 15b is not carried to the site. At the same time, like the console browser 12 used for distribution system monitoring and control in the office, the L
By connecting the monitoring control server 11 with the AN 14, the monitoring control server 1 described in the section of the first embodiment can be connected.
1, the monitoring control server 11 reflects the contents of the system status update to the mobile terminal each time, and the mobile terminal 15a, 15b always keeps the same latest power distribution system status held by the monitoring control server 11. Can be implemented in an easier form. Then, the mobile terminal 15 can be immediately removed from the LAN 14 and carried to the site without newly loading the latest state of the power distribution system into the mobile terminal 15 at the time of emergency dispatch to the site.

FIG. 6 is a flowchart showing a process of recovering the state of the power distribution system of the mobile terminal to the latest one when the information transmission method of the mobile terminal is switched. First, after disconnecting the mobile terminal 15a from the LAN 14 of the business office, when switching to the information transmission method using the communication means 151 such as a mobile phone or PHS, the mobile terminal 15a
Makes an inquiry to the monitoring control server 11 about the latest number of the distribution management number of the update data performed by the monitoring control server 11 (step S151).

The supervisory control server 11 receiving the request sends the latest distribution management number (step S11) to the mobile terminal 15.
Send 1). When the mobile terminal 15 receives this latest number (step S152), it compares it with the final management number managed by the mobile terminal 15 (step S15).
3). As a result, if there is a difference, the monitoring control server 11 is requested to update data from the last management number managed by the mobile terminal 15 to the latest distribution management number of the monitoring control server 11 (step S154).

On the other hand, update request data is transmitted from the monitoring control server 11 to the mobile terminal 15 (step S1).
12) When the mobile terminal receives this update data (step S155), the mobile terminal 15 updates the distribution system data to the latest state (step S156).

In this way, if the state of the power distribution system in the monitoring control server 11 is updated in a short time until the information transmission method is switched, the mobile terminal 15 monitors the updated data that has not been updated after the switching. The data is transmitted from the server 11 to the mobile terminal 15, and the mobile terminal 1
5 distribution system status can be recovered to the latest one.

(Fourth Embodiment) (Corresponding to [Claim 4]) FIG. 7 is a drawing for explaining a fourth embodiment.
In the present embodiment, it is shown that the system diagram information required in a short time can be obtained from the server with respect to the system diagram information input from the mobile terminal.

FIG. 7 is a diagram for explaining a method of expressing the current state of the power distribution system and a storage form. As described above, the system diagram determines the display position of the device corresponding to the map coordinates. In this case, the system diagram is stored as a geographical rectangular range surrounding the system diagram. The rectangular range is represented by lower left coordinates and upper right coordinates, and a list of the rectangular ranges is held. The rectangular ranges (a), (b), (c), (d), and (e) shown at the top of FIG. 7 are held by a list at the bottom.

Therefore, for example, the rectangular range shown in FIG. 7 is stored in a database (not shown) of the server, but a system diagram of the same rectangular range also exists on the mobile terminal side. This is because if the online data on the server side is changed, the changed data is immediately transmitted to the mobile terminal side at the same time.

Next, a case will be described in which an inquiry (transmission request) of system diagram information is made from a mobile terminal at the site to the server. As described above, the coordinates (lower left coordinates, upper right coordinates) including the required system diagram information are input from the site. Upon receiving this, the server specifies the insufficiency by superimposing the already saved rectangles and the rectangles actually input as necessary information, and transmits only the information including the insufficiency to the mobile terminal. Transmit. On the mobile terminal side, the shortage newly transmitted is added to the already input system information, and the necessary part is reproduced.

According to the present embodiment, since only the transmission in the insufficiency range is required, necessary information can be transmitted in a short time. Further, according to the present embodiment, since the data transfer amount can be reduced, the response time can be reduced. Particularly, the mobile terminal has a large effect because the transfer speed is low.

(Fifth Embodiment) (corresponding to [Claim 5]) In the present embodiment, information is exchanged between a server and a mobile terminal (client) (a portion indicated by 16 shown in FIG. 1). An intermediary information relay device (proxy server) (not shown) that relays the data is interposed, and the copy data is updated to the latest state at a predetermined time interval in the copy means.

Therefore, the information relay apparatus is a means for copying and holding the requested data asynchronously with the data provision request with respect to the data on the server computer to which the data provision request was previously made by the client; And a copy return means for returning the copy data held by the copy means to the client when requested.

The proxy server itself is publicly known as disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 10-21134, and a detailed description thereof will be omitted. What matters in the present embodiment is only at what time interval the information update content held by the server is copied to the proxy server side. According to the present embodiment, duplicate data can be returned more efficiently.

The proxy server has several functions, one of which is a caching function. By using this caching function, the content once referred by the client is stored in the cache area when passing through the proxy server.

According to this data cache, when a client requests to view the content again, it is only necessary to return the data already in the cache. Therefore, the network data transfer between the proxy server and the server is performed. It can be omitted, and it can respond quickly to requests from clients. It should be noted that the information relay device has a copying unit.

Here, an outline of the operation of a general caching proxy server currently implemented is as follows. Here, an example of WWW is shown. 1. Upon receiving a display request from the client, the cache area is checked. 2. If a copy of the content requested by the client exists in the cache area, the copy is returned if the copy is within the validity period. The expiration date is sent together with the content when it is acquired from the server.

3. If the expiration date has passed, the WWW server where the original is placed is inquired of the latest update date and time of the content in order to confirm whether or not it is the latest one. 4. If the last update date and time of the original match the update date and time of the copy, the contents in the cache are returned to the client. 5. If the original last update date is newer than the cache, the original content is downloaded again, returned to the client, and the cache is updated.

The above situation 2 or 4 is expressed as "cache hit". With this type of technology, when a content update is performed on the content on the server with respect to the preset content, the change is notified to the client (mobile terminal) having the copy, and the copy is changed to the latest state.

By using the push technology (automatically sending the changed information amount to the client (mobile terminal) when the changed information amount reaches a predetermined amount) for the cache management of the proxy server, the preset contents are always updated to the latest state. Are kept in the cache area.

Accordingly, the cache hit probability for a request from a client (mobile terminal) is higher than that of a general proxy server, and the average response time as seen from the client is shortened. This effect is significant if the content on the server is updated frequently.

(Sixth Embodiment) (Corresponding to [Claim 6]) In this embodiment, each update time interval for a plurality of replicated data is determined by the frequency of a data provision request from the mobile terminal for each data. A means for changing the information based on the information. As a result, an appropriate copy update can be performed according to the data provision request frequency.

(Seventh Embodiment) (Corresponding to [Claim 7]) In this embodiment, the update time interval for a plurality of replicated data is determined by changing the data change frequency at the client (mobile terminal) for each data. There is provided a means for changing based on the information. Therefore, it is possible to appropriately update the copy according to the data change frequency.

(Eighth Embodiment) (corresponding to [Claim 8]) In this embodiment, each update time interval for a plurality of replicated data is determined based on the data change frequency on the server for each data. Means to change it. Therefore, it is possible to update the copy efficiently in accordance with the data change frequency on the server.

(Ninth Embodiment) (Claim 9)
FIG. 8 is an overall configuration diagram showing still another embodiment. As shown in FIG. 8, an IC card 60,
By connecting a CD-ROM drive 61, a GPS receiver 63, a video camera 65 such as a digital camera or a VTR, etc., various forms effective for monitoring and controlling the power distribution system as in the following example are realized. Can be.

FIG. 9 is a diagram for explaining an embodiment according to [claim 9], which uses an IC card in which a control right is specified. That is, as shown in FIG. 9, the service areas 70a and 70b are divided in an area under the jurisdiction of the business office, and an IC card 60 in which control right information capable of controlling only the distribution equipment corresponding to the area is provided.
The card information is read by the mobile terminal 15. Then, in order to actually control the devices, as described in the first embodiment, when pointing to a device in the power system diagram displayed on the display device by the pointing device 126,
If the device is not covered by the control right information of the IC card, processing is performed so that subsequent operations cannot be continued.

If the IC card 60 itself is not inserted into the mobile terminal 15, it is possible to make it impossible to perform monitoring control processing. According to the present embodiment, it is possible to prevent an unspecified number of persons who do not have the authority to operate the power distribution device from controlling the device without permission, and prevent a plurality of operators from simultaneously controlling the same device.

FIG. 10 is a view for explaining an embodiment according to [Claim 10], which uses map information. That is, the map information stored in the medium such as the CD-ROM 62 shown in FIG.
10 is linked to the position information of the distribution system diagram showing the distribution devices such as switches shown in FIG. 10, and the map information is displayed in the background as shown in FIG. When the distribution system diagram is not displayed based on the position information, the map information is displayed on the display device 125 alone. In addition, the code | symbol 80 in FIG. 10 is a line segment of map information.

FIG. 11 is a diagram for explaining an embodiment according to [claim 11], which is to display the current position of an automobile. That is, the GPS receiver 63 shown in FIG.
The coordinate information and the time information of the satellites transmitted by the four GPS satellites 64 are simultaneously received, and the latitude and longitude as the position information of the vehicle on which the mobile terminal 15 is mounted are calculated.
The current position of the vehicle equipped with the mobile terminal 15 can be displayed on the display device 125 of the terminal with a map that can be displayed by the above-described method in the background.

Thus, as shown in FIG. 11, the worker at the site can know the current position 90 correctly. Further, the location information is transmitted to the transmission section 121 of the terminal and the transmission section 1 of the server.
The data is transmitted to the monitoring control server 11 of the business office via the server 13, and the vehicle position can be displayed on the display device of the browser 12 in the business office with a map in the background. This can of course be displayed for a plurality of vehicle positions, and it is also possible to add a vehicle identification number, which is effective in grasping the position of each vehicle and issuing a vehicle allocation instruction.

Next, an embodiment according to claim 12 will be described. In the present embodiment, the content is to capture video information. That is, the digital camera and the VTR shown in FIG.
And the like, and captures an image of the site situation into the mobile terminal 15 and transmits this image information to the supervisory control server 11 of the business office via the transmission unit 121 of the terminal and the transmission unit 113 of the server. And the browser 12 in the sales office
Of the site situation can be displayed on the display device. According to the present embodiment, it becomes possible for a worker at a site and a general manager at a sales office to cope with a common situation recognition.

[0065]

As described above, according to the present invention, the state of the distribution system, which is processed and managed by the monitoring control server installed in the sales office, is carried to the site immediately after the state change is reflected. High-speed display on a mobile terminal enables on-site operators to grasp the entire system at the site in a favorable environment in terms of human interface, control equipment remotely from the site, It is possible to obtain a distribution line remote control terminal capable of providing information on the situation at the site to the sales office. This means that IC cards and CD-ROMs
By connecting devices such as drivers, GPS receivers, and digital cameras to mobile terminals, control functions can be set to improve security-related functions, map information can be provided to the site, and multiple sites can be dispatched. The effects can be obtained for optimal dispatch management of vehicles and more accurate grasp of the situation at the site.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of a system to which a distribution line remote control terminal of the present invention is applied.

FIG. 2 is a diagram showing a configuration in a distributed arrangement in an embodiment of a power system monitoring and control system to which the Internet / intranet technology is applied.

FIG. 3 is a block diagram of a functional unit that performs information processing between a server and a browser when monitoring and controlling devices in the power system monitoring and control system.

FIG. 4 is a diagram showing an example of an expression of a distribution system diagram displayed on a display device.

FIG. 5 is a block diagram of a functional unit that performs information processing between a server and a browser when setting a device state in a power system monitoring and control system according to another embodiment.

FIG. 6 is a flowchart showing a process of recovering the state of the power distribution system of the mobile terminal to the latest one when the information transmission method of the mobile terminal is switched.

FIG. 7 is a view for explaining that system information required in a short time is obtained from a server for system diagram information.

FIG. 8 is a block diagram showing a configuration of a distribution line remote operation terminal to which the embodiment of the present invention is applied.

FIG. 9 is a diagram showing an example of a controllable area that can be controlled.

FIG. 10 is an image diagram showing an example of displaying map information on the background of a distribution system diagram.

FIG. 11 is an image diagram showing an example in which a vehicle position is displayed on a distribution system diagram and map information.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Sales office 11 Monitoring and control server 12 Console browser 13 Telecom master station (TCM) 16 Connection means 2 Substation 21 Telecom terminal (TCR) 22 Communication means such as a communication line between a TCR and a slave station 23 Slave station 151 Mobile phone or Communication means such as PHS 3 Internet / Intranet 15 Mobile terminal 15a Mobile terminal at the time of LAN connection 111 Monitoring control application unit 112 Main storage data management unit 113 (server) Transmission unit 121 (server) transmission unit 122 (browser) Main memory data management unit 123 (browser) Main storage unit 124 (browser) 124 display processing unit 125 display device 126 pointing device 127 control command creation unit 128 status setting contents creation unit 60 IC card 61 CD-ROM drive 62 CD-ROM 63 GPS reception 64 GPS satellite 65 Digital camera, video camera such as VTR 66 Modem 70a, 70b Boundary line of control area 80 Line segment of map information 90 Mark indicating vehicle position

Claims (12)

[Claims] The present invention is applied to an electric power system monitoring and control system configured by connecting a server and a terminal via a network, wherein the terminal is a mobile terminal configured to be portable and capable of communicating with the server. A copy processing unit that creates power system current state information equivalent to that of the server based on data transmitted from the server; and a main storage unit that stores the power system current state information that has been subjected to the copy processing. And display means for reading the power system current state information stored in the main storage means and displaying the read information on a display device, and indicating the corresponding device in the power system current state information displayed on the display device by applying A remote control terminal, comprising: a control command creation unit that creates a remote control command for a device. 2. The remote operation terminal according to claim 1, wherein
A remote setting characterized by providing status setting content creating means for creating status information of a corresponding device in place of or in addition to the control command creating means, and reflecting the status setting content in the distribution system status information of the server at the site. Operation terminal. 3. The remote operation terminal according to claim 1,
When the mobile terminal is not brought to the site, the content of the system status update at the server is reflected from the server by connecting to the server on the network in the office, and when the mobile terminal is disconnected from the network in the office, the A remote control terminal for transmitting an update from the server to the mobile terminal when the power distribution system status in the server is updated within a time period before disconnection and switching to another information transmission method. 4. The remote operation terminal according to claim 1, wherein
The system diagram information copied by the copy processing means overlaps a figure stored in advance as a geographical area with a figure newly input as a required area at this time, and only a missing part that does not satisfy both of them is displayed. A remote control terminal for transmitting and copying an image. 5. An information relay device having a relay function of copying data from the server and transferring the data to the remote operation terminal on a network connecting the remote operation terminal according to claim 1 and the server, A power system monitoring and control system, characterized in that the information relay device includes means for updating the copy data of the data from the server to a latest state at predetermined time intervals. 6. The power system monitoring and control system according to claim 5, wherein a time interval for updating the copy data to the latest state is performed according to a frequency of a transfer request from the mobile terminal for each data. Grid monitoring and control system. 7. The power system monitoring and control system according to claim 5, wherein a time interval for updating the copy data to the latest state is performed in accordance with a data change frequency of each data from the mobile terminal. Monitoring and control system. 8. The power system monitoring and control system according to claim 5, wherein a time interval for updating the copy data to the latest state is performed based on a data change frequency on the server. . 9. The remote operation terminal according to claim 1, wherein
A remote control terminal, comprising: reading means for reading information of an IC card in which control right information relating to a power distribution device is written, so that only a person having a specific control right can operate the terminal. 10. The remote control terminal according to claim 1, wherein the mobile terminal is provided with information reading means for a medium such as a CD-ROM, and is linked to position information of a power distribution system diagram and stored in the medium or the like. A remote control terminal for displaying a distribution system diagram with map information as a background. 11. The remote control terminal according to claim 1, wherein the mobile terminal is provided with GPS satellite information receiving means such as a GPS receiver, and displays a vehicle position on a map background. . 12. The remote operation terminal according to claim 1, wherein the mobile terminal is provided with a unit for capturing video information.
A remote operation terminal for displaying an image of a site situation on a display of a client installed in an office.