CN114928510B - Power communication link establishment method, resource configuration method and system - Google Patents

Power communication link establishment method, resource configuration method and system Download PDF

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CN114928510B
CN114928510B CN202210687143.9A CN202210687143A CN114928510B CN 114928510 B CN114928510 B CN 114928510B CN 202210687143 A CN202210687143 A CN 202210687143A CN 114928510 B CN114928510 B CN 114928510B
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communication link
accessed
security
sender
access
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CN114928510A (en
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亢中苗
吴赞红
黄东海
张珮明
邓晓智
李波
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Guangdong Power Grid Co Ltd
Electric Power Dispatch Control Center of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Electric Power Dispatch Control Center of Guangdong Power Grid Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
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    • G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • G—PHYSICS
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    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/40—Business processes related to the transportation industry
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The invention discloses a method for establishing an electric power communication link, a method for configuring resources and a system, wherein the method for establishing the electric power communication link comprises the following steps: and sending a configuration request to a configuration server until the configuration server determines that a sender meets the access condition of a communication link to be accessed according to the security requirement list and the received configuration request, and the sender establishes connection with the communication link to be accessed. By adopting the embodiment of the invention, the power service terminal can select the corresponding communication link according to the security preference and send the configuration request to the configuration server; and the configuration server reversely determines whether the power service terminal meets the access condition according to the security requirement list, so that the power service terminal is finally accessed into the communication link meeting the security requirement and preference of the power service terminal, and the differentiated security requirement of the power service terminal on the communication link resource is met.

Description

Power communication link establishment method, resource configuration method and system
Technical Field
The present invention relates to the field of power system communications technologies, and in particular, to a method for establishing a power communication link, a method for configuring resources, and a system for configuring resources.
Background
The coverage area of the power communication network is large, the distribution of link nodes is wide, and the link safety is influenced by physical environment, electromagnetic interference and various external factors; in addition, with the rise of services such as orderly grid connection of a power system, state information monitoring of electrical equipment, second control load and the like, different service terminals generate different demands on the safety of data transmission of the power communication network. At present, a maximum channel gain method is generally adopted for processing the problem of network resource allocation, and when forwarding different link nodes, the selection of the next node is completed by identifying the channel gain of each node, so that the service data transmission is realized. However, this approach ignores the security issues of the communication link resources while not taking into account the differentiated security requirements of the different service terminals.
Disclosure of Invention
The invention provides a method for establishing an electric power communication link, a method for configuring resources and a system thereof, which are used for solving the technical problem of differentiated safety requirements of service terminals on link resources.
In order to solve the above technical problems, an embodiment of the present invention provides a method for establishing an electric power communication link, including:
transmitting a configuration request to a configuration server until the configuration server determines that a sender meets the access condition of a communication link to be accessed according to a security requirement list and the received configuration request, wherein the sender establishes connection with the communication link to be accessed;
the configuration request comprises terminal information of a sender and link information of the communication link to be accessed; each sent configuration request is generated according to a current security preference list, and the current security preference list is updated according to the feedback result of the last configuration request; the security preference list records a number of communication links ordered according to security level and link information for each communication link.
The invention enables the power service terminal to select a corresponding communication link according to the security preference through the security preference list and send a configuration request to the configuration server; and the configuration server reversely determines whether the power service terminal meets the access condition according to the security requirement list, so that the power service terminal is finally accessed into the communication link meeting the security requirement and preference of the power service terminal, and the differentiated security requirement of the power service terminal on the communication link resource is met.
Further, the sending a configuration request to the configuration server specifically includes:
selecting a communication link with the highest security level from the current security preference list as the communication link to be accessed, and acquiring link information of the communication link to be accessed;
generating the configuration request according to the link information of the communication link to be accessed and the terminal information stored locally;
and sending the configuration request to the configuration server.
The security preference list has the security level ordering of the communication link resources, the power service terminal can select the communication link request configuration with the highest security level according to the security ordering, and the power service terminal can be ensured to be configured with the communication link with the high security level preferentially.
Further, the configuration server determines, according to the security requirement list and the received configuration request, that the sender meets an access condition of the communication link to be accessed, specifically:
the security requirement list records security requirement levels of all terminal devices and access levels required by all communication links;
the configuration server inquires the security requirement list according to the terminal information and the link information, and determines a first security requirement level of a sender and a first access level corresponding to the communication link to be accessed;
if the first security requirement level is less than or equal to the first access level, the configuration server determines that the sender meets the access condition of the communication link to be accessed;
and if the first security requirement level is greater than the first access level, the configuration server determines that the sender does not meet the access condition of the communication link to be accessed.
Further, when the first security requirement level is less than or equal to the first access level, the configuration server determines that the sender meets an access condition of a communication link to be accessed, specifically:
and when the first security requirement level is smaller than or equal to the first access level and the communication link to be accessed is determined not to be matched with other power service terminals, the configuration server determines that the sender meets the access condition of the communication link to be accessed.
The configuration server acquires the information of the power service terminal according to the configuration request, and determines the security demand level of the power service terminal according to the information of the power service terminal and the security demand list; by judging whether the security requirement level of the power service terminal meets the preset level or not, the power service terminal is prevented from accessing a communication link exceeding or not meeting the security requirement, and the difference between the power service terminal and the communication link configuration is ensured; in addition, by checking whether the power service terminal is connected with the communication link to be accessed, the configuration request of the sender is ensured not to conflict with the established matching, each power service terminal corresponds to the corresponding communication link one by one, and the differential safety requirement of the power service terminal is met.
Further, the current security preference list is updated according to the feedback result of the last configuration request, specifically:
when the sender does not meet the access condition of the communication link to be accessed, receiving the feedback result sent by the configuration server; the feedback result records a plurality of communication links which do not meet the access condition, including the communication link to be accessed; the access grades corresponding to the communication links which do not meet the access condition are smaller than or equal to the first access grade corresponding to the communication link to be accessed;
and according to the feedback result, updating the current security preference list by deleting the communication link to be accessed or the plurality of communication links which do not meet the access condition.
According to the invention, the communication link which does not meet the access condition is deleted by updating the current security preference list, so that the power service terminal is matched with the communication link corresponding to the security requirement level of the power service terminal, and meanwhile, the connection establishment efficiency of the power service terminal and the communication link is improved.
Further, the current security preference list is obtained by updating the initial security preference list once or several times; the initial security preference list is established according to an analytic hierarchy process, and specifically comprises the following steps:
establishing a hierarchical structure model; setting the security level of the communication links as a first layer of the hierarchical structure model, setting the historical communication condition as a second layer of the hierarchical structure model, and setting a plurality of communication links as a third layer;
comparing the data in the hierarchical structure model according to the comparison matrix, and generating a judgment matrix and a feature vector corresponding to the judgment matrix;
performing consistency inspection according to the consistency index, and normalizing the feature vectors passing inspection to obtain weight vectors;
and scoring the safety of the communication links according to the weight vectors to obtain the safety grade of each communication link, and sorting the communication links according to the safety grade to obtain an initial safety preference list.
The invention establishes a security preference list according to an analytic hierarchy process, and compares the mutual influence among all layers through a comparison matrix to obtain a judgment matrix reflecting the influence factors of a plurality of link resources combined with the communication condition on the security performance; obtaining weight vectors reflecting security differences of different communication links through consistency check and normalization processing; and finally, sorting the safety of a plurality of link resources according to the weight vector to obtain a safety preference list. The security preference list comprehensively considers the communication conditions of different communication links and evaluates the security by combining the communication conditions, so that the power service terminal can select the communication link request matching meeting the respective security requirements.
In another aspect, an embodiment of the present invention provides a method for configuring power communication resources, including:
receiving a configuration request sent by a sender, and allowing the sender to establish connection with a communication link to be accessed when the sender is determined to meet the access condition of the communication link to be accessed according to a security requirement list and the received configuration request;
the configuration request comprises terminal information of a sender and link information of the communication link to be accessed; each sent configuration request is generated according to a current security preference list, and the current security preference list is updated according to the feedback result of the last configuration request; the security preference list records a number of communication links ordered according to security level and link information for each communication link.
Further, the determining, according to the security requirement list and the received configuration request, that the sender meets the access condition of the communication link to be accessed specifically includes:
the security requirement list records security requirement levels of all terminal devices and access levels required by all communication links;
inquiring the security requirement list according to the terminal information and the link information, and determining a first security requirement level of a sender and a first access level corresponding to the communication link to be accessed;
if the first security requirement level is smaller than or equal to the first access level, determining that the sender meets the access condition of the communication link to be accessed;
and if the first security requirement level is greater than the first access level, determining that the sender does not meet the access condition of the communication link to be accessed.
Further, after determining that the sender does not meet the access condition of the communication link to be accessed when the first security requirement level is greater than the first access level, the method further includes:
when the sender is determined to not meet the access condition of the communication link to be accessed according to the security requirement list and the received configuration request, refusing the sender to establish connection with the communication link to be accessed;
according to the first access class, a plurality of communication links which do not meet access conditions, including the communication link to be accessed, are obtained, and the feedback result is generated according to the plurality of communication links which do not meet the access conditions;
and sending a feedback result to the sender so that the sender updates the current security preference list according to the feedback result.
The configuration server in the invention judges whether the power service terminal meets the access condition according to the safety requirement list containing the safety requirement level of each power service terminal, and matches the communication link conforming to the safety requirement level of the power service terminal; in addition, when the sender does not meet the condition of establishing connection with the communication link to be accessed, the connection establishment request of the sender is refused, and a feedback result is timely sent, so that the sender updates the current security preference list, and the matching efficiency between the power service terminal and the communication link is improved.
In another aspect, an embodiment of the present invention provides a power communication resource allocation system, including: configuring a server, a power service terminal and communication link resources;
the configuration server executes the power communication resource configuration method according to the embodiment of the invention;
the power service terminal executes the power communication link establishment method according to the embodiment of the invention;
the communication link resource comprises a plurality of communication links including a communication link to be accessed, and is used for establishing connection with the power service terminal when the configuration server determines that the power service terminal meets the access condition of the communication link to be accessed.
The power service terminal selects a corresponding communication link from communication link resources according to the security preference through the security preference list, and sends a configuration request to a configuration server; and the configuration server reversely determines whether the power service terminal meets the access condition according to the security requirement list, so that the power service terminal is finally accessed into the communication link meeting the security requirement and preference of the power service terminal, and the differentiated security requirement of the power service terminal on the communication link resource is met.
Drawings
Fig. 1 is a schematic flow chart of an embodiment of a method for establishing a power communication link according to the present invention;
fig. 2 is a schematic flow chart of another embodiment of the method for establishing a power communication link according to the present invention;
FIG. 3 is a flow chart of an embodiment of a method for power communication resource allocation provided by the present invention;
fig. 4 is a flow chart of another embodiment of the power communication resource allocation method provided by the present invention;
FIG. 5 is a schematic diagram illustrating the structure of an embodiment of a power communication resource allocation system provided by the present invention;
fig. 6 is a timing diagram of an embodiment of a method for establishing a power communication link provided by the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Fig. 1 is a flow chart of an embodiment of the method for establishing an electric power communication link according to the present invention, which mainly includes step 1011 and step 1012, specifically as follows:
step 1011: and sending a configuration request to a configuration server.
Step 1012: and until the configuration server determines that the sender meets the access condition of the communication link to be accessed according to the security requirement list and the received configuration request, the sender establishes connection with the communication link to be accessed.
In this embodiment, the configuration request includes terminal information of a sender and link information of the communication link to be accessed; each sent configuration request is generated according to a current security preference list, and the current security preference list is updated according to the feedback result of the last configuration request; the security preference list records a number of communication links ordered according to security level and link information for each communication link.
For a better explanation of the step flow of the present invention, refer to fig. 6, and fig. 6 is a timing chart of an embodiment of the power communication link establishment method provided by the present invention. A power service terminal sends a configuration request to a configuration server so that the power service terminal establishes connection with a communication link to be accessed; and when the configuration server determines that the power service terminal meets the access condition of the communication link to be accessed, allowing the power service terminal to establish connection with the communication link to be accessed.
In this embodiment, the current security preference list is updated according to the feedback result of the last configuration request, specifically: when the sender does not meet the access condition of the communication link to be accessed, receiving the feedback result sent by the configuration server; the feedback result records a plurality of communication links which do not meet the access condition, including the communication link to be accessed; the access grades corresponding to the communication links which do not meet the access condition are smaller than or equal to the first access grade corresponding to the communication link to be accessed; and according to the feedback result, updating the current security preference list by deleting the communication link to be accessed or the plurality of communication links which do not meet the access condition.
The invention enables the power service terminal to select a corresponding communication link according to the security preference through the security preference list and send a configuration request to the configuration server; and the configuration server reversely determines whether the power service terminal meets the access condition according to the security requirement list, so that the power service terminal is finally accessed into the communication link meeting the security requirement and preference of the power service terminal, and the differentiated security requirement of the power service terminal on the communication link resource is met.
The invention can also delete the communication link which does not meet the access condition by updating the current security preference list, so that the power service terminal is matched with the communication link corresponding to the security requirement level of the power service terminal, and the efficiency of establishing connection between the power service terminal and the communication link is improved.
Fig. 2 is a flow chart of another embodiment of the method for establishing an electric power communication link according to the present invention, which mainly includes steps 201 to 208, specifically as follows:
in this embodiment, step 1011 is specifically from step 201 to step 203.
Step 201: and selecting a communication link with the highest security level from the current security preference list as the communication link to be accessed, and acquiring link information of the communication link to be accessed.
Step 202: and generating the configuration request according to the link information of the communication link to be accessed and the terminal information stored locally.
Step 203: and sending the configuration request to the configuration server.
The security preference list has the security level ordering of the communication link resources, the power service terminal can select the communication link request configuration with the highest security level according to the security ordering, and the power service terminal can be ensured to be configured with the communication link with the high security level preferentially.
In this embodiment, step 1012 is specifically from step 204 to step 208.
Step 204: and the configuration server inquires the security requirement list according to the terminal information and the link information, and determines a first security requirement level of a sender and a first access level corresponding to the communication link to be accessed.
In this embodiment, the security requirement list records the security requirement level of each terminal device and the access level required by each communication link.
Step 205: judging whether the first security requirement level is smaller than or equal to the first access level; if the first security requirement level is less than or equal to the first access level, executing step 206; if the first security requirement level is greater than the first access level, step 207 is performed.
In this embodiment, if the first security requirement level is less than or equal to the first access level, the configuration server determines that the sender meets an access condition of a communication link to be accessed, specifically: and when the first security requirement level is smaller than or equal to the first access level and the communication link to be accessed is determined not to be matched with other power service terminals, the configuration server determines that the sender meets the access condition of the communication link to be accessed.
Step 206: the configuration server determines that the sender meets the access condition of a communication link to be accessed; step 208 is performed.
Step 207: and the configuration server determines that the sender does not meet the access condition of the communication link to be accessed.
Step 208: and the sender establishes connection with the communication link to be accessed.
The configuration server acquires the information of the power service terminal according to the configuration request, and determines the security demand level of the power service terminal according to the information of the power service terminal and the security demand list; by judging whether the security requirement level of the power service terminal meets the preset level or not, the power service terminal is prevented from accessing a communication link exceeding or not meeting the security requirement, and the difference between the power service terminal and the communication link configuration is ensured; in addition, by checking whether the power service terminal is connected with the communication link to be accessed, the configuration request of the sender is ensured not to conflict with the established matching, each power service terminal corresponds to the corresponding communication link one by one, and the differential safety requirement of the power service terminal is met.
In this embodiment, the current security preference list is obtained by updating the initial security preference list once or several times; the initial security preference list is established according to an analytic hierarchy process, and specifically comprises the following steps: establishing a hierarchical structure model; setting the security level of the communication links as a first layer of the hierarchical structure model, setting the historical communication condition as a second layer of the hierarchical structure model, and setting a plurality of communication links as a third layer; comparing the data in the hierarchical structure model according to the comparison matrix, and generating a judgment matrix and a feature vector corresponding to the judgment matrix; performing consistency inspection according to the consistency index, and normalizing the feature vectors passing inspection to obtain weight vectors; and scoring the safety of the communication links according to the weight vectors to obtain the safety grade of each communication link, and sorting the communication links according to the safety grade to obtain an initial safety preference list.
In this embodiment, the historical communication condition includes: the method comprises the steps of establishing historical communication quality when a sender establishes connection with a plurality of communication links respectively, establishing historical line damage conditions when the sender establishes connection with a plurality of communication links respectively, establishing historical communication interruption conditions when the sender establishes connection with a plurality of communication links respectively, and establishing historical relay node fault conditions when the sender establishes connection with a plurality of communication links respectively.
In this embodiment, the security levels of the communication links required by different types of power service terminals are different, where the accurate regulation service terminal needs to perform start-stop control on the distributed energy and load terminals according to the power grid regulation center instruction; for the data acquisition service terminal, although the data security affects further regulation and control, the data ductility requirement is low, and the data transmission interruption can be repeated, so that the security level is lower than that of the accurate regulation and control service terminal. Meanwhile, the topology of the power communication link is complex, the link relay may be in a power environment of the field or strong interference, and the line damage condition, the transmission quality and the safety condition of the link relay are different. Therefore, when the security preference list is established according to the hierarchical analysis method, both the difference of the requirements of the power service terminals on the communication links and the historical communication condition of each power service terminal and each communication link need to be considered.
The invention establishes a security preference list according to an analytic hierarchy process, and compares the mutual influence among all layers through a comparison matrix to obtain a judgment matrix reflecting the influence factors of a plurality of link resources combined with the communication condition on the security performance; obtaining weight vectors reflecting security differences of different communication links through consistency check and normalization processing; and finally, sorting the safety of a plurality of link resources according to the weight vector to obtain a safety preference list. The security preference list comprehensively considers the communication conditions of different communication links and evaluates the security by combining the communication conditions, so that the power service terminal can select the communication link request matching meeting the respective security requirements. In addition, when the initial security preference list is established according to the analytic hierarchy process, the historical communication quality, the historical line damage condition, the historical communication interruption condition and the historical relay node fault condition between the power service terminal and different communication links are considered, so that the historical communication condition relative to the power service terminal is comprehensively considered when the analytic hierarchy model scores each communication link, the security level of each communication link relative to the power service terminal is more comprehensively evaluated, and the differential security requirement of the power service terminal is met.
Fig. 3 is a flow chart of an embodiment of the power communication resource allocation method provided by the present invention, which mainly includes steps 3011 to 3012, specifically as follows:
step 3011: and receiving a configuration request sent by the sender.
Step 3012: and when the sender meets the access condition of the communication link to be accessed according to the security requirement list and the received configuration request, allowing the sender to establish connection with the communication link to be accessed.
In this embodiment, the configuration request includes terminal information of a sender and link information of the communication link to be accessed; each sent configuration request is generated according to a current security preference list, and the current security preference list is updated according to the feedback result of the last configuration request; the security preference list records a number of communication links ordered according to security level and link information for each communication link.
Fig. 4 is a flow chart of an embodiment of a power communication resource allocation method provided by the present invention. The main difference between fig. 4 and fig. 3 is that fig. 4 further includes steps 401 to 405, specifically as follows:
in this embodiment, step 3012 is specifically from step 401 to step 405.
Step 401: and inquiring the security requirement list according to the terminal information and the link information, and determining a first security requirement level of a sender and a first access level corresponding to the communication link to be accessed.
In this embodiment, the security requirement list records the security requirement level of each terminal device and the access level required by each communication link.
Step 402: judging whether the first security requirement level is smaller than or equal to the first access level; if the first security requirement level is less than or equal to the first access level, executing step 403; if the first security requirement level is greater than the first access level, step 404 is executed;
step 403: determining that the sender meets the access condition of a communication link to be accessed; step 405 is performed.
Step 404: and determining that the sender does not meet the access condition of the communication link to be accessed.
Step 405: allowing the sender to establish a connection with the communication link to be accessed.
In this embodiment, after determining that the sender does not meet the access condition of the communication link to be accessed when the first security requirement level is greater than the first access level, the method further includes: when the sender is determined to not meet the access condition of the communication link to be accessed according to the security requirement list and the received configuration request, refusing the sender to establish connection with the communication link to be accessed; according to the first access class, a plurality of communication links which do not meet access conditions, including the communication link to be accessed, are obtained, and the feedback result is generated according to the plurality of communication links which do not meet the access conditions; and sending a feedback result to the sender so that the sender updates the current security preference list according to the feedback result.
The configuration server in the invention judges whether the power service terminal meets the access condition according to the safety requirement list containing the safety requirement level of each power service terminal, and matches the communication link conforming to the safety requirement level of the power service terminal; in addition, when the sender does not meet the condition of establishing connection with the communication link to be accessed, the connection establishment request of the sender is refused, and a feedback result is timely sent, so that the sender updates the current security preference list, and the matching efficiency between the power service terminal and the communication link is improved.
Fig. 5 is a schematic structural diagram of an embodiment of a power communication resource allocation system according to the present invention, which mainly includes: a configuration server 501, a power service terminal 502 and a communication link resource 503.
In this embodiment, the configuration server 501 executes the power communication resource configuration method according to any one of steps 3011, 3012, 401 to 405 in the embodiment of the present invention.
The power service terminal 502 performs the power communication link establishment method according to any one of step 1011, step 1012, step 201 to step 208 according to the embodiment of the present invention.
The communication link resources 503 include a number of communication links including a communication link to be accessed, and are used to establish a connection with the power service terminal 502 when the configuration server 501 determines that the power service terminal 502 meets an access condition of the communication link to be accessed.
The power service terminal establishes a security preference list through an analytic hierarchy process, selects a corresponding communication link from communication link resources according to the security preference, and sends a configuration request to a configuration server; and the configuration server reversely determines whether the power service terminal meets the access condition according to the security requirement list, finally enables the power service terminal to access to the communication link meeting the security requirement and preference of the power service terminal, and meets the differentiated security requirement of the power service terminal on the communication link resource through a bilateral matching mode.
The foregoing embodiments have been provided for the purpose of illustrating the general principles of the present invention, and are not to be construed as limiting the scope of the invention. It should be noted that any modifications, equivalent substitutions, improvements, etc. made by those skilled in the art without departing from the spirit and principles of the present invention are intended to be included in the scope of the present invention.

Claims (8)

1. A method of establishing an electrical communication link, comprising:
transmitting a configuration request to a configuration server until the configuration server determines that a sender meets the access condition of a communication link to be accessed according to a security requirement list and the received configuration request, wherein the sender establishes connection with the communication link to be accessed; the configuration server determines that the sender meets the access condition of the communication link to be accessed according to the security requirement list and the received configuration request, specifically: the security requirement list records security requirement levels of all terminal devices and access levels required by all communication links; the configuration server inquires the security requirement list according to terminal information and link information, and determines a first security requirement level of a sender and a first access level corresponding to the communication link to be accessed; if the first security requirement level is less than or equal to the first access level, the configuration server determines that the sender meets the access condition of the communication link to be accessed; if the first security requirement level is greater than the first access level, the configuration server determines that the sender does not meet the access condition of the communication link to be accessed;
the configuration request comprises terminal information of a sender and link information of the communication link to be accessed; each sent configuration request is generated according to a current security preference list, and the current security preference list is updated according to the feedback result of the last configuration request; the security preference list records a number of communication links ordered according to security level and link information for each communication link.
2. The method for establishing a power communication link according to claim 1, wherein the sending a configuration request to a configuration server is specifically:
selecting a communication link with the highest security level from the current security preference list as the communication link to be accessed, and acquiring link information of the communication link to be accessed;
generating the configuration request according to the link information of the communication link to be accessed and the terminal information stored locally;
and sending the configuration request to the configuration server.
3. The method for establishing a power communication link according to claim 1, wherein when the first security requirement level is less than or equal to the first access level, the configuration server determines that the sender meets an access condition of a communication link to be accessed, specifically:
and when the first security requirement level is smaller than or equal to the first access level and the communication link to be accessed is determined not to be matched with other power service terminals, the configuration server determines that the sender meets the access condition of the communication link to be accessed.
4. The method for establishing a power communication link according to claim 1, wherein the current security preference list is updated according to a feedback result of a last configuration request, specifically:
when the sender does not meet the access condition of the communication link to be accessed, receiving the feedback result sent by the configuration server; the feedback result records a plurality of communication links which do not meet the access condition, including the communication link to be accessed; the access grades corresponding to the communication links which do not meet the access condition are smaller than or equal to the first access grade corresponding to the communication link to be accessed;
and according to the feedback result, updating the current security preference list by deleting the communication link to be accessed or the plurality of communication links which do not meet the access condition.
5. The power communication link establishment method according to any one of claims 1 to 4, wherein the current safety preference list is obtained by updating an initial safety preference list one or several times; the initial security preference list is established according to an analytic hierarchy process, and specifically comprises the following steps:
establishing a hierarchical structure model; setting the security level of the communication links as a first layer of the hierarchical structure model, setting the historical communication condition as a second layer of the hierarchical structure model, and setting a plurality of communication links as a third layer;
comparing the data in the hierarchical structure model according to the comparison matrix, and generating a judgment matrix and a feature vector corresponding to the judgment matrix;
performing consistency inspection according to the consistency index, and normalizing the feature vectors passing inspection to obtain weight vectors;
and scoring the safety of the communication links according to the weight vectors to obtain the safety grade of each communication link, and sorting the communication links according to the safety grade to obtain an initial safety preference list.
6. A method for configuring power communication resources, comprising:
receiving a configuration request sent by a sender, and allowing the sender to establish connection with a communication link to be accessed when the sender is determined to meet the access condition of the communication link to be accessed according to a security requirement list and the received configuration request; according to the security requirement list and the received configuration request, determining that the sender meets the access condition of the communication link to be accessed, specifically: the security requirement list records security requirement levels of all terminal devices and access levels required by all communication links; inquiring the security requirement list according to terminal information and link information, and determining a first security requirement level of a sender and a first access level corresponding to the communication link to be accessed; if the first security requirement level is smaller than or equal to the first access level, determining that the sender meets the access condition of the communication link to be accessed; if the first security requirement level is greater than the first access level, determining that the sender does not meet the access condition of the communication link to be accessed;
the configuration request comprises terminal information of a sender and link information of the communication link to be accessed; each sent configuration request is generated according to a current security preference list, and the current security preference list is updated according to the feedback result of the last configuration request; the security preference list records a number of communication links ordered according to security level and link information for each communication link.
7. The power communication resource allocation method according to claim 6, wherein after determining that the sender does not satisfy the access condition of the communication link to be accessed when the first security requirement level is greater than the first access level, further comprising:
when the sender is determined to not meet the access condition of the communication link to be accessed according to the security requirement list and the received configuration request, refusing the sender to establish connection with the communication link to be accessed;
according to the first access class, a plurality of communication links which do not meet access conditions, including the communication link to be accessed, are obtained, and the feedback result is generated according to the plurality of communication links which do not meet the access conditions;
and sending a feedback result to the sender so that the sender updates the current security preference list according to the feedback result.
8. A power communication resource allocation system, comprising: configuring a server, a power service terminal and communication link resources;
wherein the configuration server performs the power communication resource configuration method according to any one of claims 6 to 7;
the power service terminal executing the power communication link establishment method according to any one of claims 1 to 5;
the communication link resource comprises a plurality of communication links including a communication link to be accessed, and is used for establishing connection with the power service terminal when the configuration server determines that the power service terminal meets the access condition of the communication link to be accessed.
CN202210687143.9A 2022-06-17 2022-06-17 Power communication link establishment method, resource configuration method and system Active CN114928510B (en)

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