CN112578222A - Power distribution terminal off-line detection method, system and platform - Google Patents
Power distribution terminal off-line detection method, system and platform Download PDFInfo
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- CN112578222A CN112578222A CN202011359019.7A CN202011359019A CN112578222A CN 112578222 A CN112578222 A CN 112578222A CN 202011359019 A CN202011359019 A CN 202011359019A CN 112578222 A CN112578222 A CN 112578222A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
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Abstract
The invention discloses a method, a system and a platform for offline detection of a power distribution terminal, wherein the method comprises the following steps: periodically detecting the starting states of the encryption machine, the front-end server and the acquisition server; periodically detecting the encryption, decryption and authentication states of the encryptor; periodically detecting the heartbeat state between the front server and the acquisition server; periodically detecting according to the isolation state between the front server and the acquisition server; and setting a detection thread, and sequentially judging the detection results of the states to obtain an offline detection result and an offline reason of the power distribution terminal. The off-line state of the power distribution terminal can be detected quickly, off-line reasons and abnormal nodes which lead to off-line can be positioned accurately, the time for eliminating the loss of the terminal due to disconnection is shortened, the capability of monitoring the operation state of the power distribution automation line in real time is effectively guaranteed, and the power supply reliability is improved.
Description
Technical Field
The invention relates to the technical field of distribution automation, in particular to a method, a system and a platform for offline detection of a distribution terminal.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the continuous improvement of the practicability level of the distribution automation system, the number of distribution automation terminals installed on a 10kV line is continuously and rapidly increased, and the terminal part or the large-area off-line is caused due to the reasons of master station equipment, network communication, an encryption chip, the terminal self and the like;
at present, the time for checking the terminal offline reason is too long, the problems of terminal online rate index reduction, three-remote function failure, inaccurate fault location and the like can be caused in the detection process, and the speed of on-site equipment elimination and line fault processing and the monitoring of the distribution network running state are seriously influenced, so that the terminal offline reason is quickly checked, and the method has great significance for reducing the equipment elimination time, reducing the power failure time of a user and improving the intelligent running level of the distribution network.
Disclosure of Invention
In order to solve the problems, the invention provides a power distribution terminal offline detection method, system and platform, which can not only quickly detect the offline state of a power distribution terminal, but also accurately locate the offline reason and abnormal nodes causing the offline, reduce the time for eliminating the offline of the terminal, effectively ensure the capability of monitoring the operating state of a power distribution automation line in real time, and improve the power supply reliability.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for offline detecting a power distribution terminal, including:
periodically detecting the starting states of the encryption machine, the front-end server and the acquisition server;
periodically detecting the encryption, decryption and authentication states of the encryptor;
periodically detecting the heartbeat state between the front server and the acquisition server;
periodically detecting according to the isolation state between the front server and the acquisition server;
and setting a detection thread, and sequentially judging the detection results of the states to obtain an offline detection result and an offline reason of the power distribution terminal.
In a second aspect, the present invention provides an offline detection system for a power distribution terminal, including:
the first detection module is used for periodically detecting the starting states of the encryption machine, the front-end server and the acquisition server;
the second detection module is used for periodically detecting the encryption, decryption and authentication states of the encryption machine;
the third detection module is used for periodically detecting the heartbeat state between the front server and the acquisition server;
the fourth detection module is used for periodically detecting the isolation state between the front-end server and the acquisition server;
and the analysis module is used for setting a detection thread and sequentially judging the detection results of all the states to obtain the offline detection result and the offline reason of the power distribution terminal.
In a third aspect, the invention provides a power distribution terminal offline detection platform, which comprises the offline detection system and the display system in the second aspect, wherein the offline detection system sends the obtained offline detection result and the offline reason of the power distribution terminal to the display system for displaying.
Compared with the prior art, the invention has the beneficial effects that:
the method and the device solve the problem of fast troubleshooting of the offline reasons of the distribution automation terminal, and when a large-area terminal is disconnected, the method and the device can not only fast detect the offline state of the distribution terminal, but also accurately position the offline reasons and abnormal nodes causing the offline, realize fast fault point positioning, reduce the disconnection and defect eliminating time of the terminal, effectively ensure the capacity of the distribution automation line for monitoring the operation state of the line in real time, and improve the power supply reliability.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a flowchart of a power distribution terminal offline detection method according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of an offline detection architecture of a power distribution terminal according to embodiment 1 of the present invention;
fig. 3 is a schematic diagram of an offline reason of the power distribution terminal according to embodiment 1 of the present invention.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and it should be understood that the terms "comprises" and "comprising", and any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
As shown in fig. 1, the present embodiment provides a method for offline detecting a power distribution terminal, including:
periodically detecting the starting states of the encryption machine, the front-end server and the acquisition server;
periodically detecting the encryption, decryption and authentication states of the encryptor;
periodically detecting the heartbeat state between the front server and the acquisition server;
periodically detecting according to the isolation state between the front server and the acquisition server;
and setting a detection thread, and sequentially judging the detection results of the states to obtain an offline detection result and an offline reason of the power distribution terminal.
In the embodiment, the terminal offline reasons are analyzed in four aspects, namely an encryption machine state 1, a connection state 2 of a front-end server and an acquisition server, a connection state 3 of the acquisition server and a terminal, and a forward isolation state 4 and a reverse isolation state 4 between the front-end server and the acquisition server; as shown in fig. 2.
In this embodiment, the periodically detecting the starting states of the encryption device, the front-end server and the acquisition server includes:
s1-1: acquiring connection state information of the front-end server and the encryption machine, and judging whether the connection state information is normal or not; and if all the encryption machines are abnormally connected, judging that the connection between the front-end server and the encryption machines is abnormal.
S1-2: acquiring a starting state of a channel process of the front-end server, and if the channel process is judged to be not started, judging that the channel process is abnormal;
s1-3: acquiring a starting state of a channel process of the acquisition server, and if the channel process is judged to be not started, judging that the channel process is abnormal;
s1-4: and acquiring the connection state of the front-end server and the acquisition server, and if the connection is not acquired, determining that the connection state is abnormal.
In this embodiment, the periodically detecting the encryption/decryption and authentication states of the encryption device includes:
s2-1: the encryption and decryption states include: obtaining, signing, verifying and decrypting a random number; specifically, the method comprises the following steps:
sending a request for acquiring a random number;
receiving a random number of a terminal and signing the random number;
acquiring verification information of the terminal signature, and verifying the terminal signature;
acquiring encrypted information of a terminal, and decrypting the encrypted information;
and sequentially detecting the processes, and if the random number acquisition fails, the signature verification fails or the decryption fails, failing to encrypt and decrypt the encryption machine.
S2-2: the authentication state includes: acquiring a random number, signing, verifying a signature and performing terminal response authentication; specifically, the method comprises the following steps:
sending a request for acquiring a random number;
receiving a random number of a terminal and signing the random number;
acquiring verification information of the terminal signature, and verifying the terminal signature;
transmitting authentication information for the terminal;
and sequentially detecting the processes, and if the random number acquisition fails, the signature verification fails or the terminal response authentication fails, the authentication of the encryption machine fails.
In this embodiment, the method further includes detecting acquisition and update of a key version of the encryption machine, and if the acquisition of the key version fails or the update of the key fails, the state of the encryption machine is abnormal.
In this embodiment, the periodically detecting the heartbeat state between the front end server and the collection server includes:
s3-1: detecting the state of heartbeat sent by the front server to the acquisition server;
the method comprises the steps that a front-end server periodically sends a one-byte heartbeat, and if the acquisition server does not receive the heartbeat in more than 3 periods, the heartbeat state is judged to be abnormal;
s3-2: detecting the state of heartbeat sent by an acquisition server to a front server;
the acquisition server periodically sends a byte heartbeat, and if the front server does not receive the heartbeat in more than 3 periods, the heartbeat state is judged to be abnormal.
In this embodiment, the periodic detection according to the isolation state between the front-end server and the collection server includes:
s4-1: detecting a forward isolation state;
(1) if the connection between the front server channel and the acquisition server channel fails, judging that the forward isolation is abnormal if one of the following conditions is met:
(1-1) the channel connection of the acquisition server is normal;
and (1-2) the acquisition server channel is normally started and is abnormally connected with the front server, namely, the connection port of the acquisition server channel and the front server is in a Listen state.
(2) If the channel state of the front server and the channel state of the acquisition server are both normal, but the heartbeat state of the front server is abnormal, the forward isolation is also judged to be abnormal.
S4-1: the reverse isolation state includes: normal reverse isolation, abnormal reverse isolation and file accumulation; specifically, the method comprises the following steps:
(1) the reverse isolation is mainly used for transmitting files, if the file transmission function is abnormal, the reverse isolation is considered to be abnormal, and the judgment rule is as follows:
the acquisition server ensures that the files are periodically generated, and if the front-end server does not receive the files with the correct format for more than 3 periods, the reverse isolation is judged to be abnormal.
(2) The file accumulation judging method comprises the following steps: the prepositive server periodically sends the time scale of the current system to the acquisition server, the acquisition server returns the time scale through reverse isolation after receiving the time scale, and if the difference between the time scale received by the prepositive server and the current time scale is more than 60 seconds, the file is considered to be accumulated;
it should be noted that, when the file transfer function is determined to be normal, it is only necessary to determine whether the files are accumulated.
(3) If the two conditions are not generated, the reverse isolation is normal.
In this embodiment, the method further includes detecting a state of the terminal communication module, and if the connection state between the terminal and the communication module is abnormal or the communication module operates abnormally, the terminal is abnormal.
In this embodiment, through the detection process, an abnormal result is determined in any one link, and then the abnormal result is recorded as a cause of the offline abnormality of the terminal; as shown in fig. 3, if there is an exception at the reverse isolation node and the reason of the exception at the reverse isolation node is file stacking, it can be determined that the reason of the terminal offline is file stacking at the reverse isolation.
In this embodiment, the basic data of the front-end server and the acquisition server are stored in a real-time library in real time, and the basic data of the acquisition server is synchronized to the front-end server; and the analyzed terminal and the offline reason thereof can be displayed, so that the offline reason of the distribution automation terminal can be quickly checked.
Example 2
This embodiment provides a distribution terminal off-line detection system, includes:
the first detection module is used for periodically detecting the starting states of the encryption machine, the front-end server and the acquisition server;
the second detection module is used for periodically detecting the encryption, decryption and authentication states of the encryption machine;
the third detection module is used for periodically detecting the heartbeat state between the front server and the acquisition server;
the fourth detection module is used for periodically detecting the isolation state between the front-end server and the acquisition server;
and the analysis module is used for setting a detection thread and sequentially judging the detection results of all the states to obtain the offline detection result and the offline reason of the power distribution terminal.
It should be noted that the modules correspond to the steps described in embodiment 1, and the modules are the same as the corresponding steps in the implementation examples and application scenarios, but are not limited to the disclosure in embodiment 1. It should be noted that the modules described above as part of a system may be implemented in a computer system such as a set of computer-executable instructions.
Example 3
The embodiment provides a power distribution terminal off-line detection platform, which comprises an off-line detection system and a display system in embodiment 2, wherein the off-line detection system sends an obtained off-line detection result and an obtained off-line reason of a power distribution terminal to the display system for displaying.
In this embodiment, the display system includes:
the display interface is used for displaying all terminals, abnormal terminals and terminal off-line reasons;
preferably, in the display interface, the abnormal terminal or the abnormal node is marked by setting the state identifier.
And the closing module is used for closing the current display interface or closing the display system.
And the version management module is used for storing the version information and calling the version information to display on the display interface.
The filtering module is used for screening out terminal records meeting the filtering conditions according to the acquired filtering conditions;
preferably, the filtration conditions include: terminal name, channel number, forwarding address, terminal state and abnormal category;
preferably, the terminal state can select all terminals, abnormal terminals and normal terminals;
preferably, the exception category, drop down list option, is given below as exception classification, all by default.
And the resetting module is used for emptying the current filtering condition.
And the sorting module is used for sorting the information displayed in the current interface in an ascending order or a descending order.
And the export module is used for exporting the information content displayed in the current interface into the Excel.
The full analysis module is used for acquiring all terminals and analyzing the offline reasons of the offline terminals; not only the terminal displayed in the current interface is analyzed.
And the appointed analysis module is used for analyzing the offline reason of the appointed terminal.
And the reloading module is used for loading all terminal information and does not contain an offline reason analysis result.
The status bar display module is used for displaying statistical information, including the total number of the terminals, the number of the off-lines, the percentage of the off-lines and the data loading time;
preferably, the data loading time refers to "full analysis" time or "reload data" time or interface launch first full data loading time.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A power distribution terminal off-line detection method is characterized by comprising the following steps:
periodically detecting the starting states of the encryption machine, the front-end server and the acquisition server;
periodically detecting the encryption, decryption and authentication states of the encryptor;
periodically detecting the heartbeat state between the front server and the acquisition server;
periodically detecting according to the isolation state between the front server and the acquisition server;
and setting a detection thread, and sequentially judging the detection results of the states to obtain an offline detection result and an offline reason of the power distribution terminal.
2. The method for offline detection of the power distribution terminal according to claim 1, wherein the periodically detecting the starting states of the encryption machine, the front-end server and the acquisition server comprises:
acquiring connection state information of the front-end server and the encryption machine, and judging whether the connection state information is normal or not; if all the encryption machines are abnormally connected, judging that the connection between the front-end server and the encryption machines is abnormal;
respectively acquiring starting states of channel processes of a front-end server and an acquisition server, and if the channel processes are judged to be not started, judging that the channel processes are abnormal;
and acquiring the connection state of the front-end server and the acquisition server, and if the connection is not acquired, determining that the connection state is abnormal.
3. The method for offline detection of a power distribution terminal according to claim 1, wherein periodically detecting the encryption/decryption and authentication states of the encryption engine comprises:
the encryption and decryption state comprises the acquisition of random numbers, signature verification and decryption;
the authentication state comprises the acquisition of random numbers, signature verification and terminal response authentication.
4. The method for offline detection of a power distribution terminal according to claim 1, wherein periodically detecting the heartbeat state between the front-end server and the collection server comprises:
detecting the state of heartbeat sent by the front server to the acquisition server; the method comprises the steps that a front server periodically sends heartbeats, and if an acquisition server does not receive heartbeats after exceeding a preset period, the heartbeat state of the front server is judged to be abnormal;
detecting the state of heartbeat sent by an acquisition server to a front server; the acquisition server periodically sends heartbeats, and if the front server does not receive heartbeats after exceeding a preset period, the heartbeat state of the acquisition server is judged to be abnormal.
5. The off-line detection method for the power distribution terminal according to claim 1, wherein the periodic detection includes detection of a forward isolation state according to an isolation state between the front-end server and the collection server, and specifically includes:
if the connection between the front server channel and the acquisition server channel fails, judging that the forward isolation is abnormal if one of the following conditions is met: one is that the channel connection of the acquisition server is normal; the second is that the channel of the acquisition server is normally started and is abnormally connected with the front server;
if the channel state of the front server and the channel state of the acquisition server are both normal, and the heartbeat state of the front server is abnormal, the front server is isolated from the abnormality.
6. The off-line detection method for the power distribution terminal according to claim 1, wherein the periodic detection includes detection of a reverse isolation state according to an isolation state between the front-end server and the collection server, and specifically includes: the acquisition server periodically generates files, and if the front-end server does not receive the files generated by the acquisition server after exceeding a preset period, the front-end server reversely isolates the abnormal files.
7. The method of claim 6, wherein the detecting of the reverse isolation state further comprises: the front-end server periodically sends the current time scale to the acquisition server, the acquisition server returns the time scale through reverse isolation after receiving the time scale, and if the difference value between the time scale received by the front-end server and the current time scale is larger than a preset threshold value, the reverse isolation is abnormal.
8. An off-line detection system for a power distribution terminal, comprising:
the first detection module is used for periodically detecting the starting states of the encryption machine, the front-end server and the acquisition server;
the second detection module is used for periodically detecting the encryption, decryption and authentication states of the encryption machine;
the third detection module is used for periodically detecting the heartbeat state between the front server and the acquisition server;
the fourth detection module is used for periodically detecting the isolation state between the front-end server and the acquisition server;
and the analysis module is used for setting a detection thread and sequentially judging the detection results of all the states to obtain the offline detection result and the offline reason of the power distribution terminal.
9. An offline detection platform of a power distribution terminal, comprising the offline detection system and the display system of claim 8, wherein the offline detection system sends the obtained offline detection result and the offline reason of the power distribution terminal to the display system for displaying.
10. The off-line testing platform for power distribution terminals as claimed in claim 9, wherein the display system comprises:
the display interface is used for displaying all terminals, abnormal terminals and terminal off-line reasons;
the filtering module is used for screening out terminal records meeting the filtering conditions according to the acquired filtering conditions;
and the status bar display module is used for displaying the total number of the terminals, the offline number, the offline percentage and the data loading time.
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