JP2000353009A - Network diagnostic device, transceiver diagnostic method using the device and storage medium in which processing program of the device is stored - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive to an efficient work by exactly and promptly grasping a network state. SOLUTION: A diagnostic request is transmitted to a network diagnostic client 15 which is preliminarily incorporated in a transmitter for remote monitoring and control or a distributed monitor controller to be connected via a communication network 108 as a diagnosing object by a network diagnostic terminal 3. Network state information is transmitted to the network diagnostic terminal 3 via the communication network 108 by a diagnosed result transmitting means 111 of the network diagnostic client 115. The diagnosed result is displayed and outputted on a network diagnostic screen by diagnosing the received network state information by the network diagnostic terminal 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a network diagnostic apparatus for diagnosing a network of a computer system for monitoring and controlling a plant such as an electric power system, a transceiver diagnostic method using the apparatus, and a storage for storing a processing program of the apparatus. Regarding the medium.

[0002]

2. Description of the Related Art A general communication network of a power system monitoring and control device as an example of a plant will be described with reference to FIG.

In FIG. 29, a distributed monitoring and control device 14
Are monitoring control servers 1 and 2 which are the center of the monitoring control function.
And man-machine servers 6 and 7 for displaying binary information and outputting messages, a form output server 8 for controlling printing to a printer, and a maintenance server 9 for creating equipment data and the like, using a man-machine network. Connected and configured.

[0004] The remote monitoring control transmission devices 4 and 5 for transmitting information to and from the power system equipment 13 are connected to the monitoring control servers 1 and 2 by a tele-con- trol network 11. The man-machine network 10 and the tele-com network 11 are duplexed into a 1-system line and a 2-system line, respectively. It has a function of switching to the standby mode, and normally processes the information on the line on the service side as valid. In FIG. 29, the transceivers of the man-machine server 10 and the tele-conversion network 11 are not shown.

[0005] Here, when new devices such as the man-machine servers 6 and 7 and the remote monitoring control transmission devices 4 and 5 are added to the man-machine network 10 or the tele-con network 11, a new network is added to the network. Install a transceiver on the transceiver or connect a line to an unused port on the transceiver. In such a case, the communication cable of the network 10 for the man-machine and the communication cable of the network 11 for the tele-conversion may be wired together on a free access floor or a wiring duct. In order to check whether the communication cable is a communication cable, refer to the label attached to the transceiver in advance, or follow the installed communication cable to check the device to be connected, and connect.

Further, when updating a communication cable or updating a transceiver installed on a network, it is necessary to stop the transceiver for work.
During operation of the power system monitoring and control device, it is not allowed to hinder the monitoring and control function due to the stoppage of the transceiver. For this reason, usually, the transceiver which is currently used as a protection line and does not hinder the operation of the power system monitoring and control device is stopped.

Further, in order to check whether the network to which the transceiver belongs is a protection line and that there is no problem even when the work is started, each remote monitoring control transmission device 4 connected to the network is checked. , 5 and the distributed monitoring and control device 14 to check the current usage status of the network.

[0008]

By the way, there are the following problems in the work of the network associated with the addition or change of the power system monitoring and control apparatus shown in FIG. 29 or the work of the network associated with the failure of the network itself.

First, in order to carry out the work on the network of the power system monitoring and control device, all communication cables and transceivers used in the network are labeled in advance and the communication cables are used. It is necessary to clarify the usage of the transceiver and the transceiver and the connected device, and when the usage changes due to updating or moving a cable, it is necessary to update the label and the like at the same time. Also, if the label is peeled off or the label content becomes unreadable for some reason, or if the device with the label is moved, confirm that the label content is correct again. There is a need.

[0010] Secondly, when performing operations that affect the transmission of information on the network, such as stopping the transceiver, it is necessary to confirm that there is no problem in the operation of the power system monitoring and control device. If a worker who is familiar with the configuration does not perform the confirmation work, the confirmation may be omitted, or the transceiver of the working line network may be erroneously stopped, causing the man-machine server to become unusable or a remote monitoring control transmission device. To the power system, which may hinder the operation of the power system.

Third, when a new device such as a man-machine server is added on the network, the network setting information of each device indicates whether the network setting parameter of the device to be added is already set for future use. It is necessary to check each device, and if there is not enough knowledge about the system configuration and the network configuration, there is a possibility that the network setting will be leaked and a problem will occur in the transmission with the added device.

Therefore, the present invention has been made to solve the above-mentioned problem, and it is possible to diagnose the influence of a network operation on a system and to confirm in advance whether or not operation will be hindered. It is an object of the present invention to provide a network diagnostic device, a transceiver diagnostic method using the device, and a storage medium for storing a processing program of the device.

[0013]

According to the first aspect of the present invention, a network for arbitrarily diagnosing a network for constructing a computer system network by connecting a plurality of computers for executing function processing by a multiplexed network. A network diagnostic device for connecting a terminal and diagnosing a network, wherein each computer collects at least network status information for identifying its own computer and a network connected to the computer, and performs network diagnostics in response to a transmission request. A network diagnostic client for transmitting to the terminal, the network diagnostic terminal requests transmission of network status information to a network diagnostic client connected to the network to be diagnosed, and transmits corresponding network status information via the network to be diagnosed. Receive and It is to diagnose the state of the work that to have a means for outputting the diagnosis result information to the outside. According to this means, the network status information of the network connected to the own computer is collected and transmitted. And
Network status information is received by the network diagnostic terminal via the network to be diagnosed, and diagnostic result information of the network is output to the outside. This allows
Diagnosis of network status is performed accurately and quickly without relying on conventional identification means such as labels attached to communication cables and transceivers. it can.

According to a second aspect of the present invention, in the network diagnostic apparatus according to the first aspect, when a multiplexed network is constructed by a plurality of networks, the network diagnostic terminal collects and transmits the network status by a network diagnostic client. The apparatus has means for receiving information, diagnosing a network type for specifying a network to be diagnosed among a plurality of networks, and outputting diagnosis result information. According to this means, it is specified which of the plurality of networks the network to be diagnosed corresponds to. Therefore,
When a new transceiver is added to the network or when the network is changed, the network to be worked on can be accurately and quickly identified without relying on identification means such as a communication cable and a label attached to the transceiver. it can.

According to a third aspect of the present invention, in the network diagnostic apparatus according to the first aspect, the network diagnostic terminal receives the network status information collected and transmitted by the network diagnostic client, and determines the order of the network system classification. Means for diagnosing whether the network is set as a series and outputting diagnosis result information, or means for diagnosing whether the current use state of the network to be diagnosed is a working line or a protection line and outputting diagnosis result information It is like that. According to this means, the order of the system classification of the network to be diagnosed, or whether the usage state of the network to be diagnosed is a working line or a protection line, is diagnosed. Therefore, it is possible to accurately grasp the order of the system classification of the network to be diagnosed, and to perform the network operation accurately. Further, it is possible to prevent the adverse effect on the network of the service line due to the wrong network operation on the service line.

The invention according to claim 4 is the invention according to claims 1 to 3.
In any one of the network diagnostic apparatuses described above, the network diagnostic client may operate the other network or the computer in response to a diagnostic request when the transceiver of the specific network stops or the computer connected to the specific network is disconnected. The network diagnostic terminal sends a diagnostic request to the network diagnostic client and receives the diagnostic result information transmitted from the network diagnostic client. And means for outputting to the outside. According to this means, when performing maintenance such as adding a new transceiver to the network, the influence on other devices or the network due to disconnection of the network to be diagnosed or stoppage of the transceiver is diagnosed in advance. Therefore, it is possible to prepare in advance and to avoid giving a failure to the system due to an erroneous network operation.

According to a fifth aspect of the present invention, in the network diagnostic apparatus according to the fourth aspect, the network diagnostic terminal, when the determination based on the obtained diagnostic result information affects other networks and computers, Means for transmitting a confirmation message to the network diagnosis client, and means for outputting to the outside when a confirmation response signal is received from the network diagnosis client of the computer, wherein the network diagnosis client receives the confirmation message, It has means for outputting to the outside and means for transmitting an acknowledgment signal input by the dialog confirming process to the network diagnostic terminal.
According to this means, when the diagnosis result is not limited to the network to be diagnosed, but may be derived and affect other computers or networks, a confirmation message to that effect is output to a terminal of the computer or the network, Confirmation is made in response to this, and an acknowledgment input from the terminal or the like of the computer is received. As a result, it is possible to prevent a situation such as an unexpected computer stoppage or monitoring / control failure due to the network.

The invention according to claim 6 is the invention according to claims 1 to 3
In any one of the network diagnostic apparatuses described above, when the network diagnostic client receives the network setting parameter of the computer to be expanded or the like from the network diagnostic terminal, the network diagnostic client compares the parameter with the current network setting information to determine whether the parameter has already been set. While having means for diagnosing and transmitting the diagnosis result information to the network diagnosis terminal,
The network diagnostic terminal has means for transmitting network setting parameters to the network diagnostic client, receiving diagnostic result information from the network diagnostic client, and outputting the information to the outside. According to this means, when adding a new device, there is no problem whether the network setting of each device that connects to the device to be added via the network is already set or the network parameters to be added. It is diagnosed whether. Therefore, it is possible to improve the efficiency of the network operation at the time of adding an apparatus and prevent incorrect network setting.

The invention according to claim 7 is a network in which a network diagnosis terminal is connected to an arbitrary network to be diagnosed, which constructs a network of computer systems by connecting a plurality of computers for executing function processing by a multiplexed network. A transceiver diagnostic method using a network diagnostic device for diagnosing the network diagnostic terminal, wherein network status information from a network diagnostic client provided in a computer connected to the network in response to a network diagnostic request from the network diagnostic terminal is transmitted to the network diagnostic terminal. When receiving is not possible, specify the transceiver to be connected to the network diagnosis client, remove the communication circuit connecting the transceiver and the network diagnosis client, and receive the data addressed to itself instead. Connecting the analyzer for transmitting the signal to the network diagnostic terminal, transmitting data from the network diagnostic terminal to the analyzer via the transceiver, and diagnosing the transceiver based on whether or not a response signal is obtained. This is a transceiver diagnosis method. According to this means, when the network status information cannot be received from the network diagnostic client connected to the network to be diagnosed in response to the diagnostic request from the network diagnostic terminal, whether or not the specific transceiver is normal is diagnosed. Therefore, early diagnosis of transceivers constituting the network as well as abnormality of the network can be surely performed, and efficiency of network maintenance work can be improved.

According to the invention of claim 8, a network diagnostic terminal is connected to an arbitrary network to be diagnosed by connecting a plurality of computers executing functional processing by a multiplexed network to construct a network of a computer system. A storage medium for storing a processing program of a network diagnostic device for diagnosing the
The network diagnostic terminal performs at least the processing of the network diagnostic client that collects network status information for identifying the computer and a network connected to the computer and transmits the network diagnostic information to the network diagnostic terminal in response to the transmission request. Sends a request for transmission of network status information to a network diagnosis client connected to the other network, receives the corresponding network status information via the network to be diagnosed, diagnoses the status of the network, and outputs diagnosis result information to the outside This is a storage medium for storing a processing program for executing the processing of the means for performing the processing.

[0021]

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

FIGS. 1 to 3 are schematic diagrams showing the application of the network diagnostic device according to the first embodiment of the present invention to a power system monitoring and control device.

1 to 3, the same reference numerals as those in FIG. 29 showing the prior art indicate the same or corresponding portions, and duplicate description will be omitted.

FIG. 1 shows a configuration in which a network diagnostic terminal 3 is connected to a transceiver 12 installed in a tele-conversion network 11 of the power system monitoring and control apparatus of FIG. Further, the same applies to the man-machine network 10.

[0025] As shown in FIG.
Is the telecom network 11 connected to the system 1 line,
The devices connected to the 1-system network are the monitoring control server 1, the monitoring control server 2, the remote monitoring control transmission device 4, and the remote monitoring control transmission device 5. The network diagnostic client 15 shown in FIG. It is assumed that each of the devices connected to such a network is installed in advance.

FIG. 2 shows that the network of the man-machine network 10 and the tele-con
FIG. 3 shows a case where the network is multiplexed into more than one stream. FIG. 3 shows a case where the network for the man-machine and the network for the teleconvert use the same network 10A, and the network diagnostic terminal 3 and the same network as shown in FIG. The processing contents between the diagnostic clients 15 are almost the same as in the case where the network in FIG.

FIG. 4 shows a network diagnostic terminal and a network diagnostic client 1 according to the first embodiment of the present invention.
5 is a specific configuration diagram of FIG. In FIG. 4, the network diagnostic terminal 3 is connected to a network diagnostic client 15 via a communication network 108 which is a network to be diagnosed. This communication network 10
8 is a man-machine network 1 in FIGS.
0, Telecom network 11, Network 10A
Respectively.

The network diagnostic terminal 3 comprises a CRT monitor 101, a diagnostic screen displaying means 102, and a diagnostic result editing means 1.
03, the diagnostic result storage file 104, the diagnostic result receiving means 105, the communication I / F means 106, and the communication I / F device 107
It is composed of

The network diagnosis client 15
Are the communication I / F device 109, the communication I / F means 110, the diagnosis result transmission means 111, and the network state diagnosis means 11
2, a network status information file 113, a CRT monitor 114, and network information editing means 115.

First, in the network diagnostic terminal 3, an operator executes a network state diagnostic request from the network diagnostic screen displayed on the CRT monitor 101 by the diagnostic screen display means 102. This network state diagnosis request is transmitted to the communication I by the diagnosis result receiving means 105.
/ F means 106, a communication I / F device 107, and a network incorporated in the remote monitoring and control transmission devices 4 and 5 and the distributed monitoring and control device 14 connected to the communication network 108 via the communication network 108. Sent to diagnostic client 15.

On the other hand, the network diagnosis client 15
Then, the network status diagnosis means 112 takes in the network status information in the network status information file 113 shown in FIG. 5, and sends the network status information to the network corresponding to the broadcast address set in the network status information at regular intervals. A request is made to the diagnostic result transmitting means 111 to transmit information. The diagnosis result transmitting means 111 is provided by the communication I / F means 110.
Network status information is transmitted to the communication network 108 via the communication I / F device 109.

FIG. 5 shows the network status information file 1
13, the network status information file 113 includes name information a1 of the own device, broadcast address information a3 for each network information a2, and whether the network is a man-machine network or a tele-con network. , Network type information a5 storing the order of the network, and using the network as a regular line and the line with the highest priority. Network use state information a6 which records whether the line is used as a standby line or as a standby line.

The own device name information a1, the broadcast address information a3, the network type information a4, and the network classification information a5 can be set and changed by the network information editing means 115 from the CRT monitor 114. The network use state information a6 is
The network use status of the own device is set at regular intervals by the network information editing means 115.

Next, in the network diagnostic terminal 3, FIG.
And the network status information b as shown in FIG. 7 is received in step S101. The network status information b shown in FIG. 7 includes an IP header b1, a UDP header b2, a network diagnosis type b3, a source device name b4, a network type b5, and a network type b.
6, network use status b7.

Subsequently, based on the network status information b received in step S 102, the diagnosis result editing means 103 analyzes the network type, the network system classification, and the network usage status of the network, and stores them in the diagnosis result storage file 104. Further, in step S103, the diagnostic screen display means 102 displays and outputs a diagnostic result on a network diagnostic screen.

FIG. 8 shows a screen display example G1 of the network diagnosis terminal 3 when a network state diagnosis request is made. The screen display example G1 shown in FIG. 8 shows a network status diagnosis screen, which includes areas for diagnosis date, source device, source IP address, type, system classification, and use status.

A diagnosis start button G1a is displayed in a screen display example G1 shown in FIG.
Is selected, the network status information received from the network is output to the screen in the order in which it was received. If you receive data with a duplicate source IP address,
The display contents are updated to the latest state when the state is changed without adding the line of the receiving device. Further, the network state diagnosis is stopped by selecting the diagnosis stop button G1b on the screen. This network status diagnosis screen can be printed or saved.

As described above, according to the first embodiment of the present invention, the name of the device that is currently transmitting information on the network, the type of the network, the system classification, and the use state connect the network diagnostic terminal to the network. Just confirm. Therefore, the operation of searching for the label of the communication cable or the like can be reduced, and when a new transceiver or network line is connected to the network, it is possible to prevent transmission failure or transmission of an abnormal signal due to an error in the connection destination.

FIG. 9 is a configuration diagram of a network diagnosis terminal and a network diagnosis client according to the second embodiment of the present invention.

Referring to FIG. 9, FIG.
9 and FIG. 4 are different from FIG. 9 and FIG. 4 in that a network diagnosis requesting unit 120 is added to the network diagnosis terminal 3A and a request content analysis unit is added to the network diagnosis client 15A. 121
And the network disconnection analysis means 122 are additionally provided.

First, in the network diagnostic terminal 3A, the processing shown in FIG. 10 is executed, and the operator executes a network disconnection diagnosis request from the network diagnostic screen displayed on the CRT monitor 101 by the diagnostic screen display means 102. That is, when the network status information is received by the diagnosis result receiving unit 105 in step S401, the IP address of the device connected to the network is fetched from the header information of the packet, and the device name is transmitted from the source of the network status information. Detected from the device name.

Next, after a certain period of time, at the time of step S402 in FIG. 10 where the information of the device that connects to the network and transmits the network disconnection diagnosis request is fetched, the network diagnosis requesting unit 120 sets the communication I / F Means 10
6 through the communication I / F device 107 and the communication network 108, the network monitoring client 15A pre-installed in the remote monitoring and control transmission devices 4 and 5 and the distributed monitoring and control device 14 connected to the network.
Then, a network disconnection diagnosis request signal c shown in FIG. 11 is transmitted.

In FIG. 11, the network disconnection diagnosis request signal c comprises an IP header c1, a TCP header c2, a network diagnosis type c3, a request destination device name c4, a network disconnection type c5, and a diagnosis address c6.

Next, the network diagnosis client 15
In A, the processing shown in FIG.
09, the communication I / F unit 110 executes step S421.
Receives the network disconnection diagnosis request signal c. The received network disconnection diagnosis request signal c is analyzed by the request content analysis unit 121 and notifies the network disconnection analysis unit 122 to perform a diagnosis when information transmission on the network is disabled.

Next, network disconnection analysis means 122
In FIG. 13, the network disconnection type is a diagnostic request when all networks are disconnected, and the requested diagnostic address is
It is determined whether the broadcast address matches the broadcast address of the network monitoring information d in the network monitoring information file 123 shown in FIG. In this judgment, if the monitoring flag is 1, the network disconnection diagnosis return information e shown in FIG.
The diagnosis result of is considered to be affected. It should be noted that the diagnostic return information e at the time of network disconnection in FIG.
P header e2, network diagnosis type e3, source device name e4, network disconnection type e5, diagnosis address e
6, diagnosis result e7, and detailed information e8.

FIG. 13 shows the data structure d of the network monitoring information file 123. The broadcast address d2 is provided for each network information d1 and the network is being monitored indicating that it is determined that there is an effect when the network is disconnected. It is composed of a flag d3, connection device monitoring information d4 from 1 to n, a device name d5 of the connection device included therein, an IP address d6, a connecting flag d7, and a monitoring flag d8. The broadcast address information of the network information, the network monitoring flag, the connected device monitoring information, and the like are stored in the CRT monitor 1.
14 can be set and changed by the network information editing means 115.

Next, the network status information file 11
Using the network status information of No. 3, the network type, network system classification, and network usage status of the network are set in the detailed information of the network disconnection diagnosis return information e.

On the other hand, when the network disconnection type is a diagnosis request at the time of disconnection of the designated line, the IP address set in the diagnostic address is searched from the connected device monitoring information of the network monitoring information. If a matching network connection is found, and the connection is currently being made and the monitoring flag is being monitored, the diagnosis result of the network disconnection diagnosis return information e in FIG. Further, in step S422 of FIG. 12, the network type, network system division, and network use state of the network are set in the detailed information of the network disconnection diagnosis return information e from the network state information.

The created network return diagnostic return information e is transmitted to the network diagnostic terminal 3A by the diagnostic result transmitting means 111 in step S423 in FIG.

Next, in the network diagnostic terminal 3A, the diagnostic result receiving means 105 receives the network disconnection diagnosis result information e via the communication I / F means 106 in step S403 of FIG. The diagnosis result information e is notified to the diagnosis result editing means 103. The diagnostic result editing means 103 edits the content of the notified information and saves it in the diagnostic result storage file 104, and in step S404 of FIG.
A network disconnection diagnosis screen is displayed and output as in a screen display example G2 shown in FIG. A screen display example G2 in FIG. 15 shows a network disconnection diagnosis screen, and includes areas of a transmission source device, a transmission source IP address, a type, a system classification, a use state, an influence determination, and a confirmation state.

As described above, according to the second embodiment, the influence of the case where the information cannot be transmitted in all or a part of the network due to the work involving the stoppage of the transceiver such as the transceiver or the concentrator, is examined by the network diagnostic terminal. From the network diagnostic client of each device connected to the network, and outputs the result of the diagnosis by the network diagnostic client on the screen of the transmission source network diagnostic terminal. Therefore, it is possible to diagnose the effects on the devices connected to the network, and to confirm in advance the devices that will be affected by the stop of the transceiver, etc. Can also be diagnosed.

FIG. 16 is a configuration diagram of a network diagnostic terminal and a network diagnostic client according to the third embodiment of the present invention.

In FIG. 16, the same reference numerals as those in FIG. 9 showing the second embodiment denote the same or corresponding parts.
9 is different from FIG. 9 in that a confirmation message display requesting unit 124 is added to the network diagnosis terminal 3B and a confirmation message display unit 125 is added to the network diagnosis client 15B.

First, the display request of the confirmation message is
In response to the confirmation message transmission G2a of the screen display example G2 of FIG. 15 described in the embodiment, a confirmation message display request is transmitted to the network diagnosis client 15B by the confirmation message display requesting unit 124. In the network diagnosis client 15B, the request content analysis unit 121 determines that the received data is a display request of a confirmation message, and notifies the confirmation message display unit 125 of the display request of the confirmation message. The confirmation message display means 125 creates a confirmation message and
A confirmation message is output as in a screen example G3 shown in FIG.
In a screen display example G3 in FIG. 17, the type, system classification, and use state are displayed as the effect check of the network.

As described above, according to the third embodiment, when a network operation such as a stop of a communication device is performed, transmission of information becomes impossible, and the network diagnosis terminal determines that the result of the diagnosis is affected. The device that has been diagnosed as having a failure can be notified by a confirmation message. Therefore, the operator who monitors and controls the power system with the device can check the contents, and can determine the necessity of switching the used line and the validity of the network work,
It is possible to prevent a work error that may hinder system operation.

FIG. 18 is a configuration diagram of a network diagnosis terminal and a network diagnosis client showing another embodiment of the third embodiment of the present invention.

In FIG. 18, the same reference numerals as those in FIG. 16 showing the third embodiment denote the same or corresponding parts.
The main difference between FIG. 8 and FIG.
C shows the confirmation result storage file 130 and the confirmation result receiving means 1
31 and the confirmation result editing means 132 are additionally provided, and the confirmation result transmitting means 1 is transmitted to the network diagnosis client 15C.
33 is added.

First, in the same manner as described in the third embodiment, the diagnosis result editing means 103 shown in FIG. In step 124, a confirmation message display request is notified via the communication I / F unit 106.

On the other hand, in the network diagnosis client 15C, the request content analysis means 121 determines that the received data is a confirmation message display request, and notifies the confirmation message display means 125 of the confirmation message display request.

In the confirmation message display means 125, FIG.
Similarly to the screen display example G3 of FIG. 7, a confirmation message is output to a designated area on the CRT screen. In the network diagnosis client 15C, for example, the confirmation G3a of the screen display example G3 in FIG. 17 can be pressed to notify that the start of the work is permitted. In this case, the confirmation result is transmitted by the confirmation result transmitting means 133 to the network diagnostic terminal 3C via the communication I / F means 110.

In the network diagnosis terminal 3C, the confirmation result receiving means 131 receives the confirmation result via the communication I / F means 106, and notifies the confirmation result editing means 132. The check result editing means 132 edits the check result, saves it in the check result storage file 130, and
In step 2, the confirmation result is displayed and output on the network disconnection diagnosis screen of the CRT monitor 101.

As described above, according to the present embodiment, the result of the confirmation as to whether the operator on the device side has confirmed the confirmation message notified by the network diagnosis terminal to the device diagnosed as having an effect is determined by the network diagnosis. Since it is possible to confirm at once on the screen of the terminal, it is possible to easily confirm that the preparation is completed in all the devices even if the work place is apart from each device.

FIG. 19 is a configuration diagram of a network diagnosis terminal and a network diagnosis client according to the fourth embodiment of the present invention.

In FIG. 19, the same reference numerals as those in FIG. 4 showing the first embodiment denote the same or corresponding parts.
4 is different from FIG. 4 in that a network setting information diagnosis requesting unit 134 is added to the network diagnosis terminal 3D, while a network setting information diagnosis unit 135, a network setting information file 136, and a network information setting unit are added to the network diagnosis client 15D. 137 is added.

First, in the network diagnosis terminal 3D, when the operator executes a network setting information diagnosis request from the network diagnosis screen displayed on the CRT monitor 101 by the diagnosis screen display means 102, the network status is displayed by the diagnosis result receiving means 105. Receive information. Next, the IP address of the device connected to the network is fetched from the packet header information from the network status information, and the device name is changed to the source device of the network status information in step S801 of the process of the network diagnostic terminal 3D shown in FIG. Detect from the name.

Next, after a certain period of time, the network setting information diagnosis request means 134 takes in the IP address of the device connected to the network, creates a network setting information diagnosis request signal f shown in FIG. F means 106, via the communication I / F device 107 and the communication network 108, the remote monitoring and control transmission devices 4 and 5 and the distributed monitoring and control device 1 connected to the network.
4 and is transmitted to the network diagnosis client 15D incorporated in advance. Here, the network setting information diagnosis request signal f shown in FIG.
It comprises a header f2, a network diagnosis type f3, a request destination device f4, a diagnosis host name f5, and a diagnosis IP address f6.

When the network setting information diagnosis means 135 of the network diagnosis client 15D receives the network setting information diagnosis request signal f in step S821 of FIG. 22, the diagnosis host name and the diagnosis IP address of the received network setting information diagnosis request signal f Is checked in the network setting information g of the network setting information file 136 shown in FIG. If both the diagnosis host name and the diagnosis IP address have not been registered in this investigation, the non-setting is set in the diagnosis result of the network setting information diagnosis return information h shown in FIG.

The network setting information file 1 shown in FIG.
The network setting information g of 36 is network information g1.
Each time, a broadcast address g2 and connection device information g3 set in the own device are recorded from 1 to n. The connection device information g3 includes the IP address g of the connection device.
4, a host name g5 of the connection device, and a mounting flag g6 indicating whether or not the connection device is mounted are recorded. The network setting information g can be set and changed by the network information setting means 137 from the CRT monitor 114. The network setting information diagnosis return information h in FIG. 24 includes an IP header h1, TC
P header h2, network diagnosis type h3, request destination device name h4, diagnosis host name h5, diagnosis IP address h
6, diagnosis result h7, and detailed information h8.

On the other hand, the network setting information diagnosis means 13
5, if a specific device having both the diagnostic host name and the diagnostic IP address that match in step S822 of FIG. 22 has already been registered in the network setting information, whether a network connection with that device has already been made If the mounting flag of the network setting information indicating whether or not the network setting information is not installed, the setting result is set to the diagnosis result of the network setting information diagnosis return information h.

The network setting information diagnosis means 13
5 indicates that the mounting flag of the device is being mounted.
In step S822 of step 2, the diagnosis result of the network setting information diagnosis return information h is set to be duplicated, and the device name information of the installed device is added to the detailed information. If a device using either the diagnostic host name or the diagnostic IP address is detected, the diagnostic result of the network setting information diagnostic return information h is set to be duplicated, and the duplicated setting is set. The device name of the device being used and information indicating whether the duplicate is the host name or the IP address is added to the detailed information.

Next, the network setting information diagnosis result created in step S 823 shown in FIG. 22 is transmitted by the diagnosis result transmitting means 111 to the network diagnostic terminal 3 D via the communication I / F means 110.

The network diagnosis terminal 3D receives the diagnosis result of the network setting information by the diagnosis result receiving means 105 and notifies the diagnosis result editing means 103 in step S803 of FIG. Next, in step S804 in FIG. 20, the diagnosis result editing unit 103 edits the received network setting information diagnosis result, saves the edited result in the diagnosis result storage file 104, and displays the edited result in the diagnosis screen display unit 102 as shown in FIG. CRT monitor 10 as shown in screen display example G4
In step 1, the diagnostic result is displayed and output.

When a diagnosis request IP address and a diagnosis host name are inputted as network setting parameters of the device to be added from the network setting information diagnosis screen of the screen display example G4 shown in FIG. 25 and the diagnosis start button G4a is selected, Executes a network setting diagnosis request for each device connected to the device, and displays a diagnosis result in a list format. If the network setting parameters are duplicated in the above diagnosis result, the contents are displayed as guidance. For example, the guidance “IP address is in use by host XX” is displayed. Diagnosis stop button G4b on the screen
By selecting, the network status diagnosis is stopped. The diagnosis result can be printed or saved from the menu on the network diagnosis screen.

As described above, according to the fourth embodiment, when a remote monitoring and control transmission device or a distributed monitoring and control device is added to a network, the network setting of each device that is to be connected to the additional device is already set. It is possible to check in advance whether or not there is any problem in the network setting parameters of the device to be added. Therefore, it is possible to increase the efficiency of the network setting work when adding an apparatus and prevent erroneous network settings.

Next, a fifth embodiment of the present invention will be described.

In the fifth embodiment, the diagnosis of the transceiver provided in the network is performed by using the network diagnosis terminal 3 described in the first embodiment.

First, as a preparation, as shown in FIG.
Transceiver 1 provided in network 10A to be diagnosed
2 to the network diagnostic terminal 3 via the communication cable 16
Connect. The network diagnostic terminal 3 has the same configuration as that of FIG. 4 shown in the first embodiment. The network configuration to be diagnosed can be applied to any of the configurations shown in FIGS. On the other hand, each server 1A, 2
A, 8A, and 9A incorporate the same network diagnostic client 15 as in FIG.

In the network diagnostic terminal 3, when the operator executes a network condition diagnostic request from the network diagnostic screen displayed on the CRT monitor 101 by the diagnostic screen display means 102 similar to that shown in FIG. Are connected to the transceiver by the communication I / F means 106 via the communication I / F device 107 and the communication network 108.
A and 9A receive the network state information transmitted in a fixed period by the network diagnosis client 15 incorporated in advance. Based on the received network status information, the diagnostic result editing unit 103 analyzes the network type, network system classification, and network usage status of the transceiver 12 and saves the analyzed result in a diagnostic result storage file 104. Display and output the diagnosis result on the screen.

FIG. 27 shows a procedure of a method of diagnosing a driver based on the network diagnostic terminal 3 described above.

First, in step S831, there is a so-called response server in which the network diagnosis terminal 3 cannot receive the network status information transmitted by the network diagnosis client 15 at regular intervals based on the network diagnosis terminal 3 described above. Is determined. If the determination is No, that is, if there is a response from all servers, the process proceeds to step S832, and all drivers 12 are determined to be normal.

On the other hand, in the case of determination of Yes in step S831, it is determined in next step S833 whether or not there is no response from all the servers. Is determined to be defective.

Next, if No in step S833, that is, if there is no response from some networks, the following processing is performed to diagnose the transceiver 12.

First, in step S836, a port number with no response from the server is specified and taken out. This is obtained by estimating the port number of the transceiver 12 connected to the unresponsive server based on the contextual data of the server that has responded from the server.

Next, when a port number with no response is taken out from the server, in step S837, as shown in FIG. 29, an operation of removing the connector from the server connected to the port number is performed. Then, in step S838, FIG.
The connector of the protocol analyzer 20 is connected to the transceiver 12B of the port number as shown in FIG. Here, it is assumed that the protocol analyzer 20 is set to transmit a response signal to the network diagnostic terminal 3 when receiving the data addressed to itself.

When the preparation is completed as shown in FIG. 29, the data is transmitted from the network diagnosis terminal 3 to the protocol analyzer 20 in step S839. In the network diagnostic terminal 3, in step S840, the protocol analyzer 2
It is determined whether a response signal from 0 has been received. If no response signal is received from the protocol analyzer 20 in this determination, the transceiver 12B of the port number is determined to be defective in step S841. On the other hand, as a result, the transceiver 12B of the port number is replaced with a non-defective one.

On the other hand, if it is determined in step S840 that there is a response signal from the protocol analyzer 20, that is, if there is no response from the server to the network diagnostic terminal 3, the protocol analyzer 20 connected to the transceiver 12B in steps S836 to S839. When the response signal is received, the transceiver 12B of the port number is determined to be normal in step S842. In this case, in step S843, the server main body other than the transceiver 12 having the port number is checked.

Next, for other servers that do not respond, steps S835 to S836 are performed in step S835.
The process of 837 is executed. Steps S836 and above
The processing in step S844 is executed for all servers that do not respond.

The sixth embodiment relates to a storage medium for storing a processing program for a power system monitoring and control device.

The means described in the first to fifth embodiments described above can be implemented as a program that can be executed by a computer by writing the program in a storage medium such as a magnetic disk, an optical disk, a semiconductor memory, or a floppy disk. The present invention can be applied to other various devices, or can be transmitted to a communication medium and applied to other various devices. The computer that executes the present apparatus reads the program stored in the storage medium and controls the operation by the program to execute the above-described processing.

In the embodiment of the present invention, the diagnosis of the network of the power system monitoring and control device has been described. However, the present invention is not limited to this and can be applied to a computer system. In the embodiment, the present invention is applied to a network having a transceiver. However, the present invention is not limited to the transceiver, and can be implemented by connecting a network diagnostic terminal to a communication device having the same function as the transceiver.

[0091]

As described above, according to the first aspect of the present invention, network status information is received by a network diagnostic terminal via a network to be diagnosed, and a diagnostic result of the network is output to the outside. Diagnosis of the state of the network can be performed accurately and quickly without relying on conventional identification means such as a label attached to a communication cable, transceiver, or the like, so that network work can be streamlined and network work due to erroneous judgment can be prevented. .

According to the second aspect of the present invention, the network to be diagnosed is specified from among a plurality of networks, so that a new transceiver is added to the network or the network is changed. In the case of, the network to be networked can be accurately and quickly grasped without error without resorting to identification means such as a label attached to a communication cable or a transceiver, and the efficiency of networking can be improved. .

According to the third aspect of the present invention, the order of the system classification of the network to be diagnosed, or
Diagnosis of whether the network to be diagnosed is a service line or a backup line can be performed, so that it is possible to accurately determine the order of the system classification of the network to be diagnosed, to perform network work accurately, and to use the wrong service line. Network work can be prevented from affecting the service line network.

According to the fourth aspect of the present invention, when maintenance such as extension of a transceiver is performed, disconnection of the network to be diagnosed or stoppage of the transceiver affects other computers and networks. Is preliminarily diagnosed, so that preparations can be made thoroughly, and the situation in which an erroneous network operation unexpectedly affects the system can be avoided.

According to the fifth aspect of the present invention, when there is a possibility that not only the network to be diagnosed but also other computers and networks may be affected, a confirmation message to that effect is sent to terminals of the computers and networks concerned. Since it is possible to output and obtain an acknowledgment input from a terminal or the like of the computer, it is possible to prepare in advance and prevent a situation in which the computer is unexpectedly stopped or a monitoring control function is disabled due to a network. be able to.

According to the invention of claim 6, when adding a computer, it is determined whether the network setting of each computer to be connected to the device to be added via a network has already been set, or whether the computer to be added has been set. Since it is diagnosed whether there is any problem in the network parameters, it is possible to improve the efficiency of the network operation when adding a computer and prevent incorrect network settings.

According to the seventh aspect of the present invention, a specific transceiver constituting a network can be diagnosed, and network maintenance work can be performed more efficiently.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a power system monitoring and control device in which a man-machine network and a tele-con network are each duplicated, to which the present invention is applied.

FIG. 2 is an overall configuration diagram of a power system monitoring and control device in which a man-machine network and a tele-con network to which the present invention is applied are each tripled.

FIG. 3 is an overall configuration diagram of a power system monitoring and control apparatus using a duplicated network for a man-machine network and a tele-con network to which the present invention is applied.

FIG. 4 is a functional block diagram showing a first embodiment according to the present invention.

FIG. 5 is a data structure diagram showing a network status information file according to the first embodiment.

FIG. 6 is a processing flowchart of the network diagnostic terminal according to the first embodiment;

FIG. 7 is a configuration diagram of network status information according to the first embodiment.

FIG. 8 is an example of a network status diagnosis screen showing the first embodiment.

FIG. 9 is a functional block diagram showing a second embodiment according to the present invention.

FIG. 10 is a process flowchart of the network diagnostic terminal according to the second embodiment.

FIG. 11 is a diagram illustrating a packet configuration of a network disconnection diagnosis request signal according to the second embodiment.

FIG. 12 is a processing flowchart of a network diagnosis client according to the second embodiment.

FIG. 13 is a configuration diagram of a network monitoring information file according to the second embodiment.

FIG. 14 is a diagram illustrating a packet configuration of diagnostic return information upon network disconnection according to the second embodiment.

FIG. 15 is a screen display example of the network diagnostic terminal according to the second embodiment.

FIG. 16 is a functional block diagram showing a third embodiment according to the present invention.

FIG. 17 is a display example of a confirmation message screen by a network diagnosis client according to the third embodiment.

FIG. 18 is a functional block diagram showing another embodiment of the third embodiment according to the present invention.

FIG. 19 is a functional block diagram showing a fourth embodiment according to the present invention.

FIG. 20 is a process flowchart of the network diagnostic terminal according to the fourth embodiment.

FIG. 21 is a diagram illustrating a packet configuration of a network setting information diagnosis request signal according to a fourth embodiment.

FIG. 22 is a processing flowchart of a network diagnosis client according to the fourth embodiment.

FIG. 23 is a data structure diagram of a network setting information file according to the fourth embodiment.

FIG. 24 is a diagram illustrating a packet configuration of network setting information diagnosis return information according to the fourth embodiment.

FIG. 25 is a screen display example of the network diagnostic terminal according to the fourth embodiment.

FIG. 26 is a configuration diagram showing a fifth embodiment of the present invention.

FIG. 27 is a flowchart of a transceiver diagnostic method according to the fifth embodiment.

FIG. 28 is an explanatory diagram showing a fifth embodiment.

FIG. 29 is a configuration diagram of a general power system monitoring and control device.

[Explanation of symbols]

 1, 2 monitoring and control server 3 network diagnostic terminal 4, 5 remote monitoring control transmission device 6, 7 man-machine server 8 report output server 9 maintenance server 10 man-machine server 11 tele-com network 12 transceiver 13 power system equipment 14 distributed Monitoring and control device 15 network diagnostic client 101, 114 CRT monitor 102 diagnostic screen display means 103 diagnostic result editing means 104 diagnostic result storage file 105 diagnostic result receiving means 106 communication I / F means 107 communication I / F device 108 communication network 109 communication I / F device 110 Communication I / F means 111 Diagnosis result transmission means 112 Network status diagnosis means 113 Network status information 115 Network information editing means 120 Network diagnosis request means 121 Required Requested content analysis means 122 Network disconnection analysis means 123 Network monitoring information file 124 Confirmation message display request means 125 Confirmation message display means 130 Confirmation result storage file 131 Confirmation result receiving means 132 Confirmation result editing means 133 Confirmation result transmitting means 134 Network setting information Diagnosis requesting means 135 Network setting information diagnosing means 136 Network setting information file 137 Network information setting means

Continuing from the front page (72) Inventor Hirotaka Iwahashi 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Toshiba Fuchu Plant, Inc. Tatsuya Ozeki 1 Toshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba Corporation (72) Inventor Kukio Miyatake 1-futoshiba-cho, Fuchu-shi, Tokyo Inside the Fuchu Plant, Toshiba Corporation F-term (reference) 5H223 AA19 CC08 DD03 DD05 DD07 EE11

Claims (8)

[Claims] A network for diagnosing a network by connecting a network diagnostic terminal to an arbitrary network to be diagnosed for constructing a network of a computer system by connecting a plurality of computers executing functional processing by a multiplexed network. A diagnostic apparatus, wherein each of the computers has a network diagnostic client that collects at least network status information for identifying its own computer and a network connected to the computer, and transmits the collected network state information to the network diagnostic terminal in response to a transmission request. And
The network diagnostic terminal requests transmission of network state information to a network diagnostic client connected to the network to be diagnosed, and receives network state information via the network to be diagnosed to diagnose the state of the network. A network diagnostic device having means for outputting diagnostic result information to the outside. 2. When the multiplexed network is constructed by a plurality of networks, the network diagnostic terminal receives network status information collected and transmitted by the network diagnostic client and diagnoses the network within a plurality of networks. 2. The network diagnosis apparatus according to claim 1, further comprising a unit that diagnoses a network type that specifies a target network and outputs diagnosis result information. 3. The network diagnostic terminal receives network status information collected and transmitted by the network diagnostic client, diagnoses the order of the network system division, and diagnoses the diagnostic result information. 2. A network diagnostic apparatus according to claim 1, further comprising: means for outputting a diagnosis result, and means for diagnosing whether the current use state of the network to be diagnosed is a working line or a protection line and outputting diagnosis result information. . 4. The network diagnostic client according to claim 1,
Sends diagnostic result information obtained by diagnosing the effect on other networks and computers in response to a diagnostic request when the transceiver of a specific network stops or the computer connected to the specific network is disconnected The network diagnostic terminal having the means for making the diagnostic request to the network diagnostic client, and receiving the diagnostic result information transmitted from the network diagnostic client and outputting the information to the outside. 4. The network diagnostic apparatus according to claim 1, wherein: 5. A means for transmitting a confirmation message to a network diagnosis client of a computer when a determination based on the obtained diagnosis result information affects another network or a computer,
Means for outputting to the outside when an acknowledgment signal is received from the network diagnosis client of the computer,
The said network diagnosis client, when receiving the said confirmation message, has the means to output to the outside, and the means to transmit the confirmation response signal input by the dialog confirmation processing to the said network diagnosis terminal, The Claims characterized by the above-mentioned. Item 5. The network diagnostic device according to item 4. 6. The network diagnostic client,
When receiving the network setting parameters of the computer to be expanded or the like from the network diagnosis terminal, the network diagnosis information is compared with the current network setting information to determine whether or not the setting is already performed, and the diagnosis result information is transmitted to the network diagnosis terminal The network diagnostic terminal has means for transmitting the network setting parameters to the network diagnostic client, receiving the diagnostic result information from the network diagnostic client, and outputting the information to the outside. The network diagnostic device according to claim 1. 7. A network for diagnosing a network by connecting a network diagnostic terminal to an arbitrary network to be diagnosed for constructing a network of a computer system by connecting a plurality of computers executing functional processing by a multiplexed network. A transceiver diagnostic method using a diagnostic device, comprising: receiving network status information from a network diagnostic client provided in a computer connected to the network in response to a network diagnostic request from the network diagnostic terminal; If possible, specify a transceiver to be connected to the network diagnosis client, remove the communication circuit connecting the transceiver and the network diagnosis client, and receive a response to the data instead. Connecting an analyzer for transmitting a signal to the network diagnostic terminal, transmitting data from the network diagnostic terminal to the analyzer via the transceiver, and diagnosing the transceiver based on whether a response signal is obtained. And transceiver diagnostic method. 8. A network for diagnosing a network by connecting a network diagnostic terminal to an arbitrary network to be diagnosed, which constructs a network of computer systems by connecting a plurality of computers executing functional processing by a multiplexed network. A storage medium for storing a processing program of a diagnostic device, wherein each of the computers collects at least network status information for specifying a computer connected to the computer and a network connected to the computer, and the network diagnostic terminal responds to a transmission request. While executing the process of the network diagnosis client transmitting to the network diagnosis terminal, the network diagnosis terminal issues a transmission request of the network status information to the network diagnosis client connected to the network of the diagnosis target, and responds via the network of the diagnosis target. Net Storage medium that stores a processing program to be executed by receiving over click status information processing means for outputting the diagnosis result information to diagnose the state of the network to the outside.