CN113489144B - Power grid safety monitoring system - Google Patents

Abstract

The invention provides a power grid safety monitoring system, which includes a remote background server, a regional server and a node monitoring base station. The node monitoring base station is installed at the node of the power grid and is used to monitor the safety parameters of the power grid nodes. Multiple node monitoring base stations are connected to the regional server through communication. , to transmit monitoring data to the regional server, and the regional server is connected to the remote background server in communication, and is used to analyze the monitoring data transmitted by the node monitoring module to obtain the security situation of the power grid node, and transmit the obtained monitoring data and security situation To the remote background server, the remote background server is used to record the monitoring data and safety conditions of the grid nodes and to provide fault alarms. The safety monitoring results of multiple grid nodes are analyzed through a regional server, thereby reducing the working pressure of the remote background and effectively It helps to improve the efficiency and accuracy of power grid security monitoring, and reduces the difficulty of power grid security monitoring.

Description

A power grid security monitoring system

technical field

The invention relates to the technical field of power grid safety, in particular to a power grid safety monitoring system.

Background technique

Due to the increasing expansion and density of the power grid, the existing power grid monitoring work cannot achieve data aggregation and monitoring unification, resulting in frequent false fault reports in the monitoring of power grid nodes or the inability to determine the fault location and cause of the fault immediately after the power grid node fails. problems, thus increasing the difficulty of grid monitoring and reducing the efficiency of grid monitoring. Therefore, a new grid security monitoring system is needed to solve this problem.

Contents of the invention

In view of this, the object of the present invention is to provide a power grid security monitoring system to overcome or at least partially solve the above-mentioned problems in the prior art.

In order to achieve the purpose of the above invention, the present invention provides a power grid security monitoring system, including a remote background server, a regional server and a node monitoring base station, the node monitoring base station is installed at the grid node, and is used to monitor the security parameters of the grid node, a plurality of The node monitoring base station communicates with the regional server to transmit monitoring data to the regional server, and the regional server communicates with the remote background server for data analysis of the monitoring data transmitted by the node monitoring module to obtain the security situation of the grid node , and transmit the acquired monitoring data and safety conditions to the remote background server, and the remote background server is used to record the monitoring data and safety conditions of the grid nodes and provide fault alarms.

Further, the node monitoring base station includes an electrical monitoring module, a physical monitoring module, a node communication module and a base station control module,

The electrical monitoring module is used to obtain electrical parameters of grid nodes;

The physical monitoring module is used to obtain the structural configuration of the grid nodes;

The node communication module is used to establish remote communication between the node monitoring base station and the regional server;

The base station control module is used as a node monitoring control core of the base station;

The electrical monitoring module and the physical monitoring module are respectively electrically connected to the base station control module, and the base station control module communicates with the regional server through the node communication module.

Further, the electrical monitoring module includes a voltage detection unit, a current detection unit, and an impedance detection unit, and the voltage detection unit, the current detection unit, and the impedance detection unit are respectively connected to the power grid, and are respectively electrically connected to the base station control module .

Further, the node monitoring base station also includes a reserve power supply, the reserve power supply is electrically connected to the electrical monitoring module, the physical monitoring module, the node communication module, and the base station control module, and the reserve power supply is used to provide power for the node when the grid fails to supply power. Monitor the operation of the base station to provide electrical energy.

Further, the regional server includes a data storage module, a data analysis module, a regional communication module and a regional control module,

The data storage module is used to store proofreading data;

The data analysis module is used to compare the monitoring data and proofreading data returned by the node monitoring base station;

The regional communication module is used to establish a communication connection between the regional server and the node monitoring base station or remote background server;

The regional control module is used as the control core of the regional server;

The data storage module and the data analysis module are respectively electrically connected to the regional control module, and the regional control module is respectively connected to the node monitoring base station and the remote background server through the regional communication module.

Further, the calibration data includes appearance images of grid nodes and/or electrical parameter data of grid nodes in normal operation.

Further, the remote background server includes a data center, an industrial control center, an alarm module and a communication module,

The data center is used to store power grid monitoring data and lower computer operation data;

The industrial control center is used to realize background control;

The alarm module is used for prompting and alarming the grid node failure information;

The communication module is used to establish the communication between the remote background server and the regional server;

The data center and the alarm module are respectively electrically connected to the industrial control center, and the industrial control center communicates with multiple regional servers through the communication module.

Further, the regional server also includes a classification module, a first map establishment module and a resource conversion module,

The classification module is used to identify the monitoring data category returned by the node monitoring base station, and classify the monitoring data according to the monitoring data category, and the monitoring data category includes power grid data and power grid info;

The first map establishment module is used to establish a power grid security knowledge map based on monitoring data and its category, and the power grid security knowledge map includes a data map, an info map and a knowledge map, the data map is composed of power grid data data, and the info The map is composed of grid info data, and the knowledge map is composed of power grid knowledge data;

The resource conversion module is used to realize mutual conversion among grid data, grid info data and grid knowledge data.

Further, the regional server also includes a confidentiality level assessment module, an encryption module and a marking module,

The confidentiality level evaluation module is used to judge whether the monitoring data to be sent by the regional server to the remote background server reaches the confidentiality level according to preset conditions, and the monitoring data to be sent by the regional server to the remote background server is called monitoring data to be sent;

The encryption module is used to encrypt the monitoring data to be sent when the security level assessment module judges that the monitoring data to be sent reaches the security level, and the encryption is specifically:

When the monitoring data to be sent only includes grid data, the grid data sent by the regional server to the remote background server last time is obtained through the data map, and the calculation cost of cross-modal conversion of the acquired grid data is calculated, which will be calculated The cost result is used as a parameter of the key generation algorithm to generate a key, and the monitoring data to be sent is encrypted through the generated key;

When the detection data to be sent only includes grid info data, the grid info data previously sent from the regional server to the remote background server is obtained through the info map, and the calculation cost of cross-modal conversion of the acquired grid info data is calculated. The cost result is used as a parameter of the key generation algorithm to generate a key, and the monitoring data to be sent is encrypted through the generated key;

When the detection data to be sent includes grid data data and grid info data, the grid data data and grid info data sent by the regional server to the remote background server last time are respectively obtained through the data graph and the info graph, and the acquired grid data are calculated respectively. The calculation cost of cross-modal conversion of data and grid info data, the two calculation costs are combined as the parameters of the key generation algorithm to generate a key, and the monitoring data to be sent is encrypted by the generated key, and the encrypted monitoring data to be sent Become encrypted monitoring data;

The marking module is used to mark the encrypted monitoring data differently according to the monitoring data category contained in it.

Further, the remote background server includes a second map building module and a decryption module,

The second map building module is used to build a power grid security knowledge map according to the received monitoring data, and the power grid security knowledge map includes a data map, an info map and a knowledge map;

The decryption module is used to identify the mark of the received encrypted monitoring data to determine the type of monitoring data contained in the encrypted monitoring data, and obtain historical power grid data and/or data from the power grid security knowledge map according to the type of monitoring data contained in the encrypted monitoring data Or historical power grid info data, calculate historical power grid data data and/or cross-modal conversion calculation cost of historical power grid info data, use the calculated cost result as a parameter of the key generation algorithm to generate a key, and encrypt the monitoring data through the generated key pair to decrypt.

Compared with prior art, the beneficial effect of the present invention is:

1. In the grid security monitoring system of this application, multiple regional servers are connected to a remote background server, multiple node monitoring base stations are connected to a regional server, and the safety monitoring results of multiple grid nodes are passed through a regional server Perform data analysis to reduce the working pressure of the remote background, improve the efficiency and accuracy of power grid security monitoring, and reduce the difficulty of power grid security monitoring.

2. The power grid safety monitoring system of this application obtains the electrical parameters and structural configuration of the power grid nodes, so that the operating status of the power grid nodes and the data of the external structure are used as reference data for safety monitoring, and can effectively monitor the power grid. Whether the node is running normally and whether the grid node has external structure falling off, the chassis is damaged, the line is broken, etc. are accurately judged, thereby improving the reliability of the grid safety monitoring system.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only preferred embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a schematic diagram of the overall structure of a power grid safety monitoring system provided by an embodiment of the present invention.

Fig. 2 is a schematic diagram of an overall structure of a node monitoring base station provided by an embodiment of the present invention.

Fig. 3 is a functional block diagram of an electrical property monitoring module provided by an embodiment of the present invention.

Fig. 4 is a schematic diagram of an overall structure of a region server provided by an embodiment of the present invention.

Fig. 5 is a schematic diagram of the overall structure of the remote background server provided by an embodiment of the present invention.

In the figure, 1 is a remote background server, 101 is a data center, 102 is an industrial control center, 103 is an alarm module, 104 is a communication module, 2 is a regional server, 201 is a data storage module, 202 is a data analysis module, 203 is a regional communication module, 204 is a regional control module, 3 is the node monitoring base station, 301 electrical property monitoring module, 3011 voltage detection unit, 3012 current detection unit, 3013 impedance detection unit, 302 physical monitoring module, 303 node communication module, 304 base station control module.

detailed description

The principles and features of the present invention will be described below in conjunction with the accompanying drawings, and the enumerated embodiments are only used to explain the present invention, and are not intended to limit the scope of the present invention.

Referring to FIG. 1 , an embodiment of the present invention provides a grid security monitoring system, which includes a remote background server 1 , an area server 2 and a node monitoring base station 3 .

The node monitoring base station 3 is installed at the grid node, and is used to obtain the safety situation of the grid node. The number of the node monitoring base station 3 can be flexibly arranged according to the number of grid nodes. A plurality of node monitoring base stations 3 communicate with the regional server 2 to communicate with each other. The area server 2 transmits monitoring data.

The regional server 2 communicates with the remote background server 1, and is used to analyze the monitoring data transmitted by the node monitoring base station 3, obtain the security situation of the corresponding grid node, and transmit the acquired detection data and grid node security situation to Remote background server 1.

The remote background server 1 is used for recording monitoring data and safety conditions of grid nodes and giving fault alarms.

In the power grid safety monitoring system provided by the present invention, multiple regional servers 2 are connected to a remote background server 1, and each regional server 2 is connected to a plurality of node monitoring base stations 3, and multiple nodes monitor base stations 3 The security monitoring results are analyzed through a regional server, thereby reducing the work pressure of the remote background, improving the efficiency and accuracy of grid security monitoring, and reducing the difficulty of grid security monitoring.

As an optional implementation of this embodiment, referring to FIG. 2 , the node monitoring base station 3 includes an electrical monitoring module 301 , a physical monitoring module 302 , a node communication module 303 and a base station control module 304 .

Wherein, the electrical property monitoring module 301 is used to acquire electrical parameters of grid nodes.

The physical monitoring module 302 is used to obtain the structural configuration of the grid nodes.

The node communication module 303 is used to establish remote communication between the node monitoring base station 3 and the regional server 2 .

The base station control module 304 is used to monitor the control core of the base station 3 as a node.

The electrical monitoring module 301 and the physical monitoring module 302 are respectively electrically connected to the base station control module 304 , and the base station control module 304 is communicatively connected to the regional server 2 through the node communication module 303 .

Referring to Fig. 3, in this embodiment, the electrical property monitoring module 301 includes a voltage detection unit 3011, a current detection unit 3012, and an impedance detection unit 3013, and the voltage detection unit 3011, the current detection unit 3012, and the impedance detection unit 3013 are respectively connected to into the power grid, and are electrically connected to the base station control module 304 respectively. The voltage detection unit 3011 is used to detect the voltage information of the grid node; the current detection unit 3012 is used to detect the current information of the grid node; the impedance detection unit 3013 is used to detect the impedance information of the grid node.

Exemplarily, the physical monitoring module 302 may adopt a rotating camera, and the rotating camera performs lens rotation and regularly takes pictures according to a preset rotation period and recording period, so as to obtain images of grid nodes.

In this embodiment, the system obtains the electrical parameters and structural configuration of the grid nodes, and then uses the data of the operating status of the grid nodes and the external structure as reference data for safety monitoring, and can effectively determine whether the grid nodes are It can accurately judge the normal operation and whether the grid node has the external structure falling off, the chassis is damaged, the line is broken, etc., so as to improve the reliability of the grid safety monitoring system.

As an optional implementation of this embodiment, the node monitoring base station 3 also includes a reserve power supply, and the reserve power supply is electrically connected to the electrical monitoring module 301, the physical monitoring module 302, the node communication module 303, and the base station control module 304 respectively. connection, and the reserve power supply is used to provide electric energy for the operation of the node monitoring base station 3 when the grid fails to supply power.

Exemplarily, the reserve power source may adopt any backup power source structure, such as a storage battery connected to the grid, charged through the grid, and equipped with corresponding discharge equipment. When the grid is powered off, the battery automatically starts to supply power to the electrical monitoring module 301, the physical monitoring module 302, the node communication module 303, and the base station control module 304, thereby ensuring the normal operation of the node monitoring base station, and the remote background server 1 receives fault information Afterwards, the faulty grid node is maintained, and after the grid resumes normal operation, the battery is disconnected from the power supply and charged through the grid.

In this embodiment, the node communication module 303 may use ZigBee communication or network communication. When the grid node is in an area with poor network signal, due to the complex terrain, the security of the grid node is greatly affected by external factors, so ZigBee communication can be used as the node communication module 303 to ensure smooth communication. On the other hand, for areas with better network signals, direct network communication can help improve communication efficiency and ensure communication quality.

As an optional implementation of this embodiment, the area server 2 may be installed between a plurality of node monitoring base stations 3 attached to it, for example, an area server 2 is installed in the middle of the node monitoring base stations forming a ring distribution, It can also be arranged according to the distribution structure of the secondary tree diagram, so as to improve communication efficiency.

Referring to FIG. 4 , the regional server 2 includes a data storage module 201 , a data analysis module 202 , a regional communication module 203 and a regional control module 204 .

Wherein, the data storage module 201 is used for storing proofreading data.

The data analysis module 202 is used to compare the monitoring data returned by the node monitoring base station with the proofreading data, and the proofreading data includes at least one of the appearance image of the grid node and the electrical parameter data of the grid node during normal operation.

The regional communication module 203 is used to establish a communication connection between the regional server and the node monitoring base station or the remote background server.

The area control module 204 is used as the control core of the area server.

The data storage module 201 and the data analysis module 202 are electrically connected to the regional control module 204 respectively, and the regional control module 204 is respectively connected to the node monitoring base station 3 and the remote background server 1 through the regional communication module 203 .

As an optional implementation of this embodiment, referring to FIG. 5 , the remote background server 1 includes a data center 101 , an industrial control center 102 , an alarm module 103 and a communication module 104 .

Wherein, the data center 101 is used for storing grid monitoring data and lower computer operation data.

The industrial control center 102 is used to implement background control.

The alarm module 103 is used for prompting and alarming the grid node failure information.

The communication module 104 is used to establish communication between the remote background server and the regional server.

The data center 101 and the alarm module 103 are respectively electrically connected to the industrial control center 102 , and the industrial control center 102 is communicatively connected to a plurality of regional servers 2 through the communication module 104 .

Exemplarily, the alarm module 103 includes a display and a buzzer, and the display is used to display the location information and fault information of the regional server 2 and the node monitoring base station 3 corresponding to the faulty power grid node.

As an optional implementation manner of this embodiment, the area server 2 further includes a classification module, a first map creation module, and a resource conversion module.

Wherein, the classification module is used to identify the monitoring data category returned by the node monitoring base station, and classify the monitoring data according to the monitoring data category, and the monitoring data category includes grid data and grid info. The grid data class represents the grid data resource in the monitoring data, which is used to express the attribute content of a single grid node, such as various electrical parameters of numerical type, including current information, resistance information, etc.; or a string of logical type, such as Y Indicates that the state of the circuit breaker is closed, and N indicates that the state of the circuit breaker is open. The grid info class represents grid information resources, and is used to record related information of grid nodes, for example, "XX grid node is in a fault state at 9:15" and so on.

The first map establishment module is used to establish a power grid security knowledge map based on monitoring data and its category, and the power grid security knowledge map includes a data map, an info map and a knowledge map, the data map is composed of power grid data data, and the info The map is composed of grid info data, and the knowledge map is composed of power grid knowledge data. The grid knowledge data can be obtained by deriving grid data data and grid info data. In this embodiment, the grid knowledge data is mainly related safety knowledge data of grid nodes, including fault content and troubleshooting strategies.

The resource conversion module is used to realize mutual conversion among grid data, grid info data and grid knowledge data. The conversion can be the mutual conversion between the data of the same mode, for example, the data data of another power grid is converted from one power grid data; it can also be the mutual conversion across modes, for example, the power grid is obtained by converting one or more power grid data data info data.

The area server 2 also includes a confidentiality rating module, an encryption module and a marking module.

Wherein, the confidentiality level evaluation module is used to judge whether the monitoring data to be sent by the regional server 2 to the remote background server 1 reaches the confidentiality level according to preset conditions, and the monitoring data to be sent by the regional server to the remote background server is called the monitoring data to be sent. Monitoring data. Exemplarily, the security level corresponding to different types of monitoring data content is preset in the regional server, and when the security level of the monitoring data to be sent reaches the threshold value of the security level preset by the user, it is necessary to encrypt the corresponding monitoring data to be sent resend, thereby preventing confidential data from leaking during transmission over the network. The monitoring data to be sent whose confidentiality level does not reach the threshold value of the confidentiality level preset by the user can be directly sent to the remote background server 1 .

The encryption module is used to encrypt the monitoring data to be sent when the security level assessment module judges that the monitoring data to be sent reaches the user-preset security level threshold.

Exemplarily, the encryption is specifically:

When the monitoring data to be sent only includes grid data, the grid data sent by the regional server to the remote background server last time is obtained through the data map, and the calculation cost of cross-modal conversion of the acquired grid data is calculated, which will be calculated The cost result is used as a parameter of the key generation algorithm to generate a key, and the monitoring data to be sent is encrypted through the generated key;

When the detection data to be sent only includes grid info data, the grid info data previously sent from the regional server to the remote background server is obtained through the info map, and the calculation cost of cross-modal conversion of the acquired grid info data is calculated. The cost result is used as a parameter of the key generation algorithm to generate a key, and the monitoring data to be sent is encrypted through the generated key;

When the detection data to be sent includes grid data data and grid info data, the grid data data and grid info data sent by the regional server to the remote background server last time are respectively obtained through the data graph and the info graph, and the acquired grid data are calculated respectively. The calculation cost of cross-modal conversion of data and grid info data, the two calculation costs are combined as the parameters of the key generation algorithm to generate a key, and the monitoring data to be sent is encrypted by the generated key, and the encrypted monitoring data to be sent Become encrypted monitoring data.

Exemplarily, the calculation cost of performing cross-modal conversion of the obtained grid data data specifically refers to the calculation cost required to convert the grid data data into grid info data; the cross-modal conversion of the acquired grid info data The computational cost of modal conversion specifically refers to the computational cost required to convert grid info data into grid data. The key generation algorithm can use any key generation algorithm in the prior art according to actual needs, and any key encryption algorithm can be used to encrypt the monitoring data to be sent with the generated key.

The marking module is used to mark the encrypted monitoring data differently according to the monitoring data category contained in the encrypted monitoring data, that is, the marking is used to represent the monitoring data category contained in the encrypted monitoring data.

For the monitoring data to be sent whose confidentiality level reaches the threshold value preset by the user, the encryption module encrypts it and the marking module marks it, and then it can be sent to the remote background server 1 . In this embodiment, the remote backend server 1 further includes a second atlas creation module and a decryption module.

Wherein, the second map building module is used to build a power grid security knowledge map according to the monitoring data received by the remote background system 1, and the power grid security knowledge map includes a data map, an info map and a knowledge map.

The decryption module is used to identify the mark of the received encrypted monitoring data to determine the type of monitoring data contained in the encrypted monitoring data, and obtain historical power grid data and/or data from the power grid security knowledge map according to the type of monitoring data contained in the encrypted monitoring data Or historical power grid info data, calculate historical power grid data data and/or cross-modal conversion calculation cost of historical power grid info data, use the calculated cost result as a parameter of the key generation algorithm to generate a key, and encrypt the monitoring data through the generated key pair to decrypt.

In this embodiment, the regional server 2 establishes a power grid security knowledge graph based on the monitoring data collected by the node monitoring base station 3, so that the grid node monitoring data is structured to facilitate subsequent management and query. At the same time, for the monitoring data with high confidentiality requirements, the encryption module calculates the calculation cost required for its cross-modal conversion based on the historical monitoring data sent to the remote background server 1, and uses the calculation cost as the input parameter of the key generation algorithm to generate Key, through which the monitoring data to be sent is encrypted. The remote background server 1 that receives encrypted monitoring data also obtains the same historical monitoring data received through the power grid security knowledge graph, calculates the calculation cost required for its cross-modal conversion, and uses the calculation cost as an input parameter of the key generation algorithm to generate a key. The encryption key is used to decrypt the encrypted monitoring data. It is difficult to crack the key without knowing the key generation method and target mode, thereby improving the security of confidential monitoring data transmitted through the network.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (8)

1. A power grid safety monitoring system is characterized by comprising remote background servers, area servers and node monitoring base stations, wherein the node monitoring base stations are installed at nodes of a power grid and used for monitoring safety parameters of the nodes of the power grid, a plurality of the node monitoring base stations are in communication connection with the area servers so as to transmit monitoring data to the area servers, the area servers are in communication connection with the remote background servers and used for carrying out data analysis on the monitoring data transmitted by a node monitoring module and then acquiring safety conditions of the nodes of the power grid and transmitting the acquired monitoring data and safety conditions to the remote background servers, the remote background servers are used for recording the monitoring data and safety conditions of the nodes of the power grid and giving fault alarms, each area server further comprises a classification module, a first map building module and a resource conversion module,

the classification module is used for identifying the type of monitoring data returned by the node monitoring base station and classifying the monitoring data according to the type of the monitoring data, wherein the type of the monitoring data comprises a power grid data type and a power grid info type;

the first map establishing module is used for establishing a power grid safety knowledge map based on monitoring data and the type of the monitoring data, the power grid safety knowledge map comprises a data map, an info map and a knowledge map, the data map is formed by power grid data, the info map is formed by power grid info data, and the knowledge map is formed by power grid knowledge data;

the resource conversion module is used for realizing mutual conversion among the power grid data, the power grid info data and the power grid knowledge data;

the area server also comprises a security level evaluation module, an encryption module and a marking module,

the security level evaluation module is used for judging whether monitoring data to be sent to the remote background server by the regional server reaches a security level according to preset conditions, wherein the monitoring data to be sent to the remote background server by the regional server is called to-be-sent monitoring data;

the encryption module is used for encrypting the monitoring data to be sent when the confidentiality grade evaluation module judges that the monitoring data to be sent reaches the confidentiality grade, and the encryption specifically comprises the following steps:

when the monitoring data to be transmitted only comprise power grid data, power grid data which are transmitted to a remote background server by a region server at the previous time are acquired through a data map, the calculation cost of performing cross-mode conversion on the acquired power grid data is calculated, the calculation cost result is used as a parameter of a key generation algorithm to generate a key, and the generated key is used for encrypting the monitoring data to be transmitted;

when the to-be-transmitted detection data only comprise power grid info data, power grid info data which are transmitted to a remote background server from a regional server at the previous time are obtained through an info map, the calculation cost of performing cross-mode conversion on the obtained power grid info data is calculated, the calculation cost result is used as a parameter of a key generation algorithm to generate a key, and the generated key is used for encrypting the to-be-transmitted monitoring data;

when the to-be-transmitted detection data comprise power grid data and power grid info data, respectively acquiring the power grid data and the power grid info data which are transmitted to a remote background server from a region server at the previous time through a data map and an info map, respectively calculating the calculation cost for performing cross-mode conversion on the acquired power grid data and power grid info data, combining the two calculation costs as parameters of a key generation algorithm to generate a key, encrypting the to-be-transmitted monitoring data through the generated key, and converting the encrypted to-be-transmitted monitoring data into encrypted monitoring data;

the marking module is used for marking the encrypted monitoring data differently according to the monitoring data types contained in the encrypted monitoring data.

2. The system according to claim 1, wherein the node monitoring base station comprises an electrical monitoring module, a physical monitoring module, a node communication module and a base station control module,

the electrical property monitoring module is used for acquiring electrical parameters of the power grid node;

the physical monitoring module is used for acquiring the structural configuration condition of the power grid node;

the node communication module is used for establishing remote communication between the node monitoring base station and the regional server;

the base station control module is used as a control core of the node monitoring base station;

the electrical property monitoring module and the physical property monitoring module are respectively electrically connected with the base station control module, and the base station control module is in communication connection with the regional server through the node communication module.

3. The system according to claim 2, wherein the electrical monitoring module comprises a voltage detection unit, a current detection unit and an impedance detection unit, and the voltage detection unit, the current detection unit and the impedance detection unit are respectively connected to the power grid and are respectively electrically connected to the base station control module.

4. The grid security monitoring system according to claim 2, wherein the node monitoring base station further comprises a reserve power supply, the reserve power supply is electrically connected to the electrical monitoring module, the physical monitoring module, the node communication module, and the base station control module, respectively, and the reserve power supply is configured to provide electric energy for operation of the node monitoring base station when the grid is unable to supply power.

5. The grid safety monitoring system according to claim 1, wherein the regional server comprises a data storage module, a data analysis module, a regional communication module and a regional control module,

the data storage module is used for storing proofreading data;

the data analysis module is used for comparing the monitoring data and the proofreading data returned by the node monitoring base station;

the regional communication module is used for establishing communication connection between a regional server and a node monitoring base station or a remote background server;

the area control module is used as a control core of the area server;

the data storage module and the data analysis module are respectively and electrically connected with the area control module, and the area control module is respectively in communication connection with the node monitoring base station and the remote background server through the area communication module.

6. The system according to claim 5, wherein the calibration data includes an appearance image of the grid node and/or data of electrical parameters of the grid node during normal operation.

7. The grid safety monitoring system according to claim 1, wherein the remote background server comprises a data center, an industrial control center, an alarm module and a communication module,

the data center is used for storing power grid monitoring data and lower computer operation data;

the industrial control center is used for realizing background control;

the alarm module is used for prompting and alarming fault information of the power grid node;

the communication module is used for establishing communication between the remote background server and the regional server;

the data center and the alarm module are respectively and electrically connected with the industrial control center, and the industrial control center is in communication connection with the plurality of regional servers through the communication module.

8. The system for monitoring the safety of the power grid according to claim 1, wherein the remote backend server comprises a second map building module and a decryption module,

the second map establishing module is used for establishing a power grid safety knowledge map according to the received monitoring data, wherein the power grid safety knowledge map comprises a data map, an info map and a knowledge map;

the decryption module is used for identifying the received encrypted monitoring data mark to judge the monitoring data type contained in the encrypted monitoring data, acquiring historical power grid data and/or historical power grid info data from a power grid security knowledge graph according to the monitoring data type contained in the encrypted monitoring data, calculating the cross-mode conversion calculation cost of the historical power grid data and/or the historical power grid info data, generating a key by taking the calculation cost result as a parameter of a key generation algorithm, and decrypting the encrypted monitoring data through the generated key.

Images