CN104301137A - Method and system for analyzing influences of electric power communication faults on services - Google Patents

Abstract

The invention discloses a method and system for analyzing the influences of electric power communication faults on services and belongs to the field of electric power communication. The system comprises a power grid service resource database and a database of association rules for alarm giving objects and transmission channels, a real-time acquisition module, a preprocessing module and a real-time analysis module. The preprocessing module is used for performing normalization processing on alarm information of a communication network acquired by the real-time acquisition module, matching the alarm information with the transmission channels and classifying the alarm information according to the transmission channels. The real-time analysis module is used for performing correlation analysis on the alarm information matched with the transmission channels, finding out source alarms, determining the degrees of the influences of the source alarm information on the transmission channels and then determining the influences of the alarms on power grid services. Through the method and system, the accuracy of the analysis result can be improved, and the degrees of the influences of fault events on power grid services can be analyzed in a more detailed mode.

Description

Method and system for analyzing the impact of power communication faults on business

technical field

The invention relates to a method for the influence of communication failure on business, which is applied in the field of electric power communication.

Background technique

In the traditional power communication operation and maintenance process, the monitoring and troubleshooting of the power communication network is mainly to monitor and troubleshoot the communication network in real time from the equipment level and the network level, in order to ensure the normal operation of the power grid communication business. With the rapid construction of the national smart grid, communication network operation and maintenance needs to be upgraded from the traditional device-oriented and network-oriented level to the business-oriented level, and from traditional passive operation and maintenance to active operation and maintenance. Therefore, it is of great significance to research and apply the automatic analysis of the impact of communication failures on services. In the process of power communication operation, the business is divided into dispatching production business and operation management business. The dispatching production business is the key business to ensure the safe and stable operation of the power grid, mainly including relay protection business, stability control business, dispatching automation, dispatching telephone, etc., dispatching Production services require dedicated transmission with special signals. Ensuring the normal operation of the dispatching production business is one of the key links to ensure the correct operation of the power grid equipment. If the power communication channel fails, the dispatching signal will not be transmitted or mistransmitted, which will lead to major grid safety and stability accidents. Therefore, when a fault occurs in the power communication network, it is necessary to automatically, accurately, and real-time analyze the impact of the fault on the power grid business, inform the communication operation and maintenance personnel as soon as possible to ensure the business communication channel and handle the fault, and notify the business immediately department to take action.

Chinese patent document CN101808351A discloses a business impact analysis method and system, the method comprising: collecting events generated by business-related resources; performing correlation analysis on the collected events according to event-related resources and the relationship between resources, and determining the root event ; Determine the business impact of the root cause event. The inventive method and system can improve the efficiency of business impact analysis, and discover the degree of impact on the affected business. In the current existing technology, the analysis of the impact of communication network failures on business is generally by establishing a business resource model, describing the user's business requirements according to the service level agreement (SLA), collecting business-related resource events, and performing a comprehensive analysis. Impact of failure on business.

In electric power communication, however, electric power communication also involves active and standby transmission channels for carrying grid services, and active and standby routes for carrying services in the power system. The division of power grid services is different from general communication services, root events, and transmission channels for carrying services. It is also different from general communication services. Alarms often occur on specific devices, such as: optical ports, electrical ports, boards, etc. These actual physical resources for network transmission of alarm information (which can be collectively referred to as the object where the alarm information is located) are also different from general communication services.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for analyzing the impact of communication faults on business in the field of electric power communication, so as to improve the impact on power grid business when the power communication system fails.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

The analysis method for the impact of power communication faults on business, including the pre-established power grid business resource database and the association rule database of the object where the alarm is located and the transmission channel; the power grid business resource database includes network configuration information, manually entered power grid business information, business and transmission The bearer relationship of the channel; the association rule database includes the associated data between the object where the alarm is located and the transmission channel, the root alarm rule for finding the root alarm based on the transmission channel, and the rule table of the influence degree of the root alarm on the transmission channel;

The analysis includes the following steps:

(1) Collect and normalize the alarm information of the communication network,

(2) Match the normalized alarm information with the transmission channel, and classify the alarm information according to the transmission channels of different business types;

(3) Carry out correlation analysis on the alarm information matched to the transmission channel, find out the root alarm, and determine the influence degree of the root alarm information on the transmission channel by querying the rule table of the influence degree of the root alarm on the transmission channel in the association rule database; At the same time, according to the bearing relationship between the business and the transmission channel in the power grid business resource database, it is searched whether there is a main transmission channel and a backup transmission channel in the transmission channel carrying the power grid business, and if so, analyze the main transmission channel and the backup transmission channel respectively ;

(4) Determine the impact of the alarm on the grid business according to the impact of the alarm on the main transmission channel and the backup transmission channel of the grid business on the transmission channel.

The further improvement of above-mentioned method of the present invention is:

The information included in the network configuration information of the power grid service resource database includes: equipment information, SDH transmission network configuration, SDH transmission channel, route, transmission multiplex section, network element, board card, port, time slot, and time slot crossover.

The normalization processing of the step (1) is based on the fact that the power grid business is carried on the SDH transmission channel of the synchronous digital series, and the same alarm generated by the equipment of different manufacturers is described in a unified manner, and then the object where the alarm is located is classified and normalized The processing is performed according to the physical layer, multiplex section, high-order path, and low-order path on the line side, the physical port, the logical port, and the branch 2M port; after the normalization processing is completed, the alarm information is stored in the association rule database.

The matching between the alarm information and the transmission channel in the step (2) is to determine the device where the alarm information is located and where transmission channel.

The method of finding the root alarm in the step (3) is to use the end-to-end characteristics of the transmission channel to transmit the alarm information, and perform a correlation analysis on each alarm information to find out the AIS of the alarm information and the LOS of the root alarm information, and at the same time filter out the transmission Single point fault alarm information in the case of channel protection ring network.

When determining the impact of the alarm on the power grid business in the step (4), if the main transmission channel is not affected, but the backup transmission channel is affected, the business will not be affected, and a pre-alarm message will be issued for the failure of the backup transmission channel; if the main If the main transmission channel is affected, but the backup transmission channel is not affected, the service will not be affected, and a pre-alarm message will be issued for the failure of the main transmission channel; The business is affected, and the business is affected information is issued.

An analysis system for the impact of power communication faults on business, including a business resource data module, an association rule module, a real-time acquisition module, a preprocessing module, and a real-time analysis module. The data module is connected, the preprocessing module, the business resource data module, and the association rule module are respectively connected to the real-time analysis module, and the real-time analysis module is connected to the display system, wherein:

The business resource data module stores network configuration information, power grid business information, and bearing relationships between business and transmission channels. The network configuration information includes: equipment configuration, SDH transmission network configuration, SDH transmission channel data model, routing, and transmission multiplexing segment, network element, board, port, time slot, and time slot crossover.

The association rules module stores the association data between the object where the alarm is located and the transmission channel, the root alarm rule for finding the root alarm based on the transmission channel, and the rule table of the influence degree of the root alarm on the transmission channel.

The real-time acquisition module collects the network configuration information, equipment performance and alarm information of the communication network in real time through the northbound interface provided by the SDH transmission equipment and sends them to the preprocessing module, in which the network configuration information is also sent to the business resource data module;

The pre-processing module accepts the alarm information, device performance and network configuration information from the real-time acquisition module, normalizes the alarm information, binds the alarm information to point resources first, and then retrieves the associated data between the object where the alarm is located and the transmission channel. The alarm information is bound to the transmission channel; the point resources include specific time slots, ports, boards, and network elements;

The real-time analysis module receives the alarm information from the preprocessing module, retrieves the transmission channel data of the network configuration information in the business resource data module and the associated data of the alarm object and the transmission channel in the association rule module, according to the device, transmission channel, business and transmission The bearer relationship of channels, network configuration information and alarm information, real-time analysis of the impact of alarm information on power grid services, and the analysis results are transmitted to the display system for display.

Owing to adopting above-mentioned technical scheme, the beneficial effect that the present invention produces is:

By establishing a complete and specific service resource model, the present invention matches the alarm information to the main transmission channel and the backup transmission channel carrying the power grid business, and can analyze the influence degree of the power communication network failure on the power grid business.

At the same time, the root cause alarm rule base based on the transmission channel and the rule table of the influence degree of the alarm information on the transmission channel are established, which improves the accuracy of the analysis results. The present invention can meet the special requirements of power grid business, such as time delay, transmission bandwidth, transmission mode, active and standby routing, etc. The analysis of the root event, that is, the root alarm information of the present invention is based on the specific resource object of the transmission channel, which can be more detailed Analyze the impact of fault events on business.

Description of drawings

Fig. 1 is the flowchart of analysis method of the present invention;

Figure 2 is a block diagram of the analysis system of the present invention.

Detailed ways

The method for analyzing the impact of power communication faults on business in the present invention firstly establishes a power grid business resource database and an association rule database between objects where alarms are located and transmission channels; the power grid business resource database includes network configuration information, manually entered power grid business information, business The bearer relationship with the transport channel. The information included in the network configuration information of the power grid business resource database includes: equipment information, SDH transmission network configuration, SDH transmission channel, route, transmission multiplex section, network element, board card, port, time slot, and time slot crossover.

The association rule database includes the association data of the object where the alarm is located and the transmission channel, the root alarm rule for finding the root alarm based on the SDH transmission channel, and the rule table of the influence degree of the root alarm on the transmission channel.

Include the following steps when analyzing the business impact of a failure:

(1) Collect and normalize the alarm information of the communication network.

Because the equipment of different manufacturers has different descriptions for the same type of alarm, the normalization process is based on the fact that the power grid service is carried on the SDH transmission channel of the synchronous digital series. According to the characteristics of the power grid service, the same alarm generated by the equipment of different manufacturers Make a unified description to form a unified standard, and then classify the objects where the alarms are located. The normalization process is based on the physical layer, multiplex section, high-order path, and low-order path on the line side connected to the PDH or switching equipment. Ports, logical ports, and branch 2M ports are processed; after the normalization processing is completed, the alarm information is stored in the association rule database.

(2) Match the normalized alarm information with the transmission channel, and classify the alarm information according to the transmission channels of different business types, so as to determine the business type affected by the alarm according to the equipment where the alarm is located and the transmission channel where the alarm is located and the degree of possible harm.

The transmission channel is an end-to-end communication channel connected by multiple devices. The transmission channel can carry different power grid services, such as: relay protection service, automation service, dispatching exchange service, administrative exchange service, etc. The importance of different services Different, the requirements for the transmission channel are also different. The matching of the alarm information and the transmission channel is to find and determine the device where the alarm information is located and the transmission channel where the alarm information is located by retrieving the transmission channel information of the power grid business resource database and the associated data of the alarm object and the transmission channel in the association rule database. If the transmission channel is composed of multiple device IDs, there is a device attribute information in the alarm information. This information stores the ID of the device where the alarm actually occurred. Through ID search, the relationship between the alarm and the transmission channel can be determined. This matching is Implemented by database query.

(3) Carry out correlation analysis on the alarm information matched to the transmission channel, find out the root alarm, and determine the influence degree of the root alarm information on the transmission channel by querying the rule table of the influence degree of the root alarm on the transmission channel in the association rule database.

In the transmission system, when a device fails and generates an alarm, the upstream and downstream devices connected to the faulty device will also generate alarms, resulting in many alarms. However, there is often only one faulty device. Correlation analysis often requires finding Generate alarm devices that can reflect real faults and remove derivative alarms. The method to find the root cause alarm is to use the end-to-end characteristics of the transmission channel to transmit the alarm information. The correlation analysis of each alarm information is carried out to find out the AIS of the alarm information and the LOS of the root alarm information. Trigger an AIS alarm. For the LOS at the A end of the transmission channel and the AIS alarm at the Z end, the LOS alarm at the A end is the root cause alarm. At the same time, the single point failure alarm information in the case of a transmission channel protecting the ring network is filtered out, and the system can be switched. For ring network protection, although an alarm is generated, it does not affect the end-to-end transmission channel, and this part of the alarm information can be filtered out.

The determination of the impact of alarm information on the transmission channel is based on the technology of the communication equipment manufacturer's expert database. For the SDH transmission network constructed by equipment from different manufacturers, a rule table is established to determine the impact of the alarm information type on the transmission channel. The degree of influence of the transmission channel.

At the same time, according to the carrying relationship between the business and the transmission channel in the power grid business resource database, it is searched whether there is a main transmission channel and a backup transmission channel for the transmission channel that carries the power grid business. Analyze with transfer channel and alternate transfer channel. Generally, the main transmission channel is analyzed first, and after the analysis of the main transmission channel is completed, the backup transmission channel is analyzed according to the same steps.

(4) Determine the impact of the alarm on the grid business according to the impact of the alarm on the main transmission channel and the backup transmission channel of the grid business on the transmission channel. When determining the impact of the alarm on the power grid business, if the main transmission channel is not affected, but the backup transmission channel is affected, the business will not be affected, and a pre-alarm message will be sent out for the failure of the backup transmission channel; if the main transmission channel is affected, and the If the standby transmission channel is not affected, the business will not be affected, and an early warning message will be issued for the failure of the main transmission channel; impact information.

The analysis system of the influence of power communication faults on business of the present invention includes a business resource data module, an association rule module, a real-time acquisition module, a preprocessing module, and a real-time analysis module. The resource data module is connected, the preprocessing module, the business resource data module, and the association rule module are respectively connected to the real-time analysis module, and the real-time analysis module is connected to the display system, where:

The business resource data module stores network configuration information, power grid business information, and bearing relationships between business and transmission channels. The network configuration information includes: equipment configuration, SDH transmission network configuration, SDH transmission channel data model, routing, and transmission multiplexing segments, network elements, boards, ports, time slots, and time slot crossovers.

The association rules module stores the association data between the object where the alarm is located and the transmission channel, the root alarm rule for finding the root alarm based on the transmission channel, and the rule table of the influence degree of the root alarm on the transmission channel.

The real-time acquisition module collects network configuration information, equipment performance (such as bit error rate, etc.) Business resource data module.

The pre-processing module receives the alarm information from the real-time acquisition module, the device performance and network configuration information representing the working status of the device, normalizes the alarm information, and then completes the binding of the alarm information to specific business resources. The specific business resources include equipment (such as network elements, boards, ports, time slots, etc.), transmission channels, association relationships, etc., the binding of alarm information to service resources includes two steps: first bind the alarm information to point resources, and then retrieve the location of the alarm The associated data of the object and the transmission channel binds the alarm information to the transmission channel; the point resources include specific time slots, ports, boards, and network elements. the

The real-time analysis module receives the alarm information from the preprocessing module, and then retrieves the transmission channel data of the network configuration information in the business resource data module and the associated data of the object where the alarm is located and the transmission channel in the association rule module. The bearer relationship with the transmission channel, network configuration information and alarm information, analyze the impact of the alarm information on the power grid business in real time, and transmit the analysis results to the display system for display.

Claims (7)

1. power communication fault is to the analytical method of service impact, it is characterized in that: the association rule database comprising electrical network service resources database and alarm place object and the transmission channel set up in advance; Electrical network service resources database comprises the bearing relation of network configuration information, the electrical network business information of manual typing, business and transmission channel; Association rule database comprises the associated data of alarm place object and transmission channel, the root alarm regulation searching Root alarm based on transmission channel and Root alarm to the rule list of transmission channel influence degree;

Comprise the following steps during analysis:

(1) collection communication network warning information and be normalized,

(2) warning information after normalized is mated with transmission channel, and according to the transmission channel of different service types, warning information is classified;

(3) correlation analysis is carried out to the warning information matching transmission channel, finds out Root alarm, and by inquiry association rule database in Root alarm to the rule list determination Root alarm information of transmission channel influence degree to the influence degree of transmission channel; Simultaneously, retrieve according to the bearing relation of the business in electrical network service resources database and transmission channel the transmission channel carrying electrical network business and whether there is primary transmission channel and standby transport passage, if have, then respectively primary transmission channel and standby transport passage are analyzed;

(4) according to the alarm on the primary transmission channel of electrical network business, standby transport passage on the impact of transmission channel, determine the impact of alarm on electrical network business.

2. power communication fault according to claim 1 is to the analytical method of service impact, it is characterized in that the information that the network configuration information of described electrical network service resources database comprises has: the configuration of facility information, SDH transmission network, SDH transmission channel, route, transmission multiplex section, network element, board, port, time slot, time-slot cross.

3. power communication fault according to claim 1 is to the analytical method of service impact, it is characterized in that the normalized of described step (1) be based on electrical network service bearer in synchronized data generation function transmission channel, Unify legislation is done in the same alarm produced by the equipment of different manufacturers, then being classified by alarm place object, is process according to the physical layer in line side, multiplex section, higher order path, low order channel place physical port, logic port, branch road 2M port during normalized; After completing normalized, warning information is stored in association rule database.

4. power communication fault according to claim 1 is to the analytical method of service impact, it is characterized in that mating of warning information and transmission channel in described step (2) is the associated data of alarm place object in transmission channel information by retrieving electrical network service resources database and association rule database and transmission channel, determining the equipment at warning information place and the transmission channel at place.

5. power communication fault according to claim 1 is to the analytical method of service impact; the method that it is characterized in that finding in described step (3) Root alarm is that to utilize transmission channel to transmit warning information be feature end to end; carry out correlation analysis to each warning information and find out initiation warning information AIS and Root alarm information LOS, filtering simultaneously has the Single Point of Faliure warning information in transmission channel protection looped network situation.

6. power communication fault according to claim 1 is to the analytical method of service impact, when it is characterized in that determining alarm to electrical network service impact in described step (4), if primary transmission channel is not affected, and standby transport passage is affected, then business is not affected, and sends the pre-warning information that standby transport passage breaks down; If primary transmission channel is affected, and standby transport passage is not affected, then business is not affected, and sends the pre-warning information that primary transmission channel breaks down; If primary transmission channel and the standby transport passage of carrying electrical network business are all affected, then business is affected, the influenced information of the business that sends.

7. the power communication fault realizing method described in claim 1 ~ 6 is to the analytical system of service impact, it is characterized in that comprising service resources data module, correlation rule module, Real-time Collection module, pretreatment module, real-time analysis module, Real-time Collection module is connected with the communication network of outside, pretreatment module, service resources data module respectively, pretreatment module, service resources data module, correlation rule module are connected respectively to real-time analysis module, real-time analysis model calling display system, wherein:

Store the bearing relation comprising network configuration information, electrical network business information, business and transmission channel in service resources data module, wherein network configuration information includes: the configuration of Equipments Setting, SDH transmission network, SDH transmission channel data model, route, transmission multiplex section, network element, board, port, time slot, time-slot cross;

?store the associated data of alarm place object and transmission channel in correlation rule module, search the root alarm regulation of Root alarm and Root alarm based on transmission channel to the rule list of transmission channel influence degree,

The network configuration information of the northbound interface Real-time Collection communication network that Real-time Collection module is provided by SDH transmission equipment, equipment performance and warning information also send into pretreatment module, and wherein network configuration information also sends into service resources data module;

Pretreatment module accepts from the warning information of Real-time Collection module, equipment performance and network configuration information, warning information is normalized, warning information is first tied to a resource, and warning information is tied to transmission channel by the associated data then retrieving alarm place object and transmission channel; Described some resource comprises concrete time slot, port, board, network element;

Real-time analysis module receives the warning information from pretreatment module, alarm place object in retrieval service resource data module in the transmission channel data of network configuration information and correlation rule module and the associated data of transmission channel, according to the bearing relation of equipment, transmission channel, business and transmission channel and network configuration information and warning information, real-time analysis goes out the impact of warning information on electrical network business, and analysis result is sent to display system shows.