Intelligent operation and maintenance management system and method for power equipment

Abstract

The invention discloses an intelligent operation and maintenance management system and method for power equipment, and relates to the field of power operation and maintenance, and the system comprises a communication transmission module, a frequency band transmission module, a communication influence range module, a frequency band matching module and a frequency band switching module. By monitoring communication transmission data of remote power transmission line power transformation equipment, judging a communication state, collecting network performance parameters and evaluating a frequency band transmission effect, whether to switch a frequency band or not is determined, so that the operation and maintenance efficiency is improved. Meanwhile, the system extracts environmental data in a communication influence range, optimizes network planning, eliminates environmental influence on frequency bands, and enhances communication reliability. Besides, communication hardware performance characteristics and environmental influence values are combined and analyzed together to optimize frequency band selection, a power transformation port is ensured to be switched to the most appropriate frequency band, communication quality and efficiency are improved, signals are stabilized, the error rate of data transmission is reduced, and intelligent and efficient operation of an electric power communication system is achieved.

Description

Technical Field

[0001] The present invention relates to the field of power operation and maintenance, and in particular to an intelligent operation and maintenance management system and method for power equipment. Background Art

[0002] The safe operation of power equipment is crucial to ensuring the stability of the power grid. However, traditional manual inspection and maintenance methods are inefficient and the fault diagnosis of the substation system is not timely enough. The intelligent operation and maintenance system can automatically collect and analyze the communication data between various power equipment to achieve precise frequency conversion and reduce operation and maintenance costs.

[0003] The prior art, such as the invention patent with announcement number: CN112001577B, is a power operation and maintenance process management system, which belongs to the field of information technology. The system includes the following modules: operation and maintenance management module, dispatching management module, service support management module, configuration maintenance module, service delivery management module and information statistics and comprehensive display module. The power operation and maintenance process management system of the invention takes into account the existing operation and maintenance mode and the future operation and maintenance mode, and realizes efficient power intelligent operation and maintenance management in a networked environment.

[0004] The prior art, such as the invention patent with announcement number: CN114386632B, is a distribution operation and maintenance system based on power big data, including a data acquisition unit, a real-time inspection unit, a maintenance control unit, a verification and analysis unit, an operation and maintenance evaluation unit and a display terminal; by quickly diagnosing and processing faults that occur during the power distribution operation and maintenance process, and accurately evaluating the overall operation and maintenance efficiency of the power distribution operation and maintenance, the work efficiency of the power distribution operation and maintenance is improved while also ensuring the stable development of the power distribution network and enhancing the safety of the power system.

[0005] Based on the above scheme, it can be seen that the existing technology in the field of power operation and maintenance often focuses on monitoring and managing power distribution. In practical applications, the effective scheduling and efficient management of power systems rely on high-speed and low-latency communications. If only the focus is on supervising distribution, there may be problems with information transmission delays due to untimely communication, resulting in untimely detection of power equipment failures and a negative impact on the stable operation of power. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention provides an intelligent operation and maintenance management system and method for electric power equipment. To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent operation and maintenance management system and method for electric power equipment, comprising: a communication transmission module, which is used to record the substation equipment on the remote transmission line as each substation port of the transmission line, obtain the communication transmission data parameters of each substation port, and process and analyze to generate the communication transmission characteristic value of each substation port.

[0007] The frequency band transmission module is used to collect the network performance parameters of the frequency band used for communication of each substation port, and jointly process and analyze the communication transmission characteristic values ​​of each substation port to generate the frequency band transmission evaluation value of each substation port, and obtain the frequency band transmission evaluation result of each substation port.

[0008] The communication impact range module is used to count the substation ports with unqualified frequency band transmission evaluation results, record them as the substation ports of each demand switching frequency band, and process and analyze to generate the communication impact range value of each demand switching frequency band substation port.

[0009] The frequency band matching module is used to call the integrated monitor of each demand switching frequency band substation port, extract the environmental impact data within the communication impact range value, monitor the communication hardware performance of each demand switching frequency band substation port, obtain the communication hardware performance results of each demand switching frequency band substation port, and obtain the frequency band matching label of each prepared switching frequency band substation port through comprehensive analysis and processing.

[0010] The frequency band switching module is used to perform switching operation and maintenance management on the frequency band used for communication of each prepared switching frequency band substation port based on the frequency band matching label of each prepared switching frequency band substation port.

[0011] As a preferred technical solution, the communication transmission data parameters of each substation port are obtained, and the communication transmission characteristic values ​​of each substation port are generated by processing and analyzing. The specific process is as follows:

[0012] The communication transmission data parameters of each substation port include the communication transmission data volume, delay sensitivity and communication transmission frequency of each substation port, and the communication transmission data reference volume, delay sensitivity reference volume and communication transmission reference frequency of each substation port are obtained from the database.

[0013] The communication transmission data volume, delay sensitivity and communication transmission frequency of each substation port are compared and analyzed with the communication transmission data reference volume, delay sensitivity reference volume and communication transmission reference frequency respectively to obtain the communication transmission characteristic value of each substation port. The communication transmission characteristic value of each substation port is used to characterize the communication transmission status and importance of each substation port.

[0014] As a preferred technical solution, the network performance parameters of the frequency bands used for communication of each substation port are collected and processed and analyzed together with the communication transmission characteristic values ​​of each substation port to generate the frequency band transmission evaluation value of each substation port, specifically including:

[0015] The network performance parameters of the frequency bands used for communication at each substation port include data transmission rate, data transmission bit error rate, SINR and carrier-to-interference ratio of the frequency bands used for communication at each substation port.

[0016] A collection of unit index factors of network performance parameters of the frequency bands used for communication of each substation port is extracted from the database, including the unit index factor of data transmission rate, the unit index factor of data transmission bit error rate, the unit index factor of SINR and the unit index factor of carrier-to-interference ratio of the frequency bands used for communication of each substation port.

[0017] Based on the communication transmission characteristic value of each substation port, mapping and matching are performed with the communication transmission impact factor corresponding to each communication transmission characteristic value interval pre-stored in the database to obtain the communication transmission impact factor of each substation port.

[0018] The network performance parameters of the frequency band used for communication at each substation port, the unit index factors of the network performance parameters and the communication transmission influencing factors are comprehensively analyzed and processed to obtain the frequency band transmission evaluation value of each substation port. The frequency band transmission evaluation value of each substation port is used to evaluate the degree of adaptation of the frequency band used for communication at each substation port and each substation port.

[0019] As a preferred technical solution, obtaining the frequency band transmission evaluation results of each substation port specifically includes:

[0020] The frequency band transmission evaluation value of each substation port is compared with the frequency band transmission evaluation threshold. If the frequency band transmission evaluation value of a substation port is greater than or equal to the frequency band transmission evaluation threshold, the frequency band transmission evaluation result of the substation port is determined to be qualified.

[0021] If the frequency band transmission evaluation value of a certain substation port is less than the frequency band transmission evaluation threshold, the frequency band transmission evaluation result of the substation port is determined to be unqualified.

[0022] As a preferred technical solution, the processing and analysis to generate the communication impact range value of each required switching frequency band substation port specifically includes:

[0023] The frequency band transmission evaluation value of each demand switching frequency band substation port is counted, and the difference processing is performed with the frequency band transmission evaluation threshold to obtain the frequency band transmission impact value of each demand switching frequency band substation port.

[0024] Based on the frequency band transmission impact value of each demand switching frequency band substation port, mapping and matching are performed with the communication impact range value corresponding to each frequency band transmission impact value interval pre-stored in the database to obtain the communication impact range value of each demand switching frequency band substation port.

[0025] As a preferred technical solution, the extracting of environmental impact data within the communication impact range value specifically includes:

[0026] The integrated monitor of each substation port of each frequency band that needs to be switched is called to extract the environmental impact data within the communication impact range value, including the average height of physical obstacles within the communication impact range value, electromagnetic interference intensity, average ambient temperature and average ambient humidity.

[0027] A set of environmental impact data boundary values ​​is extracted from the database, including the average boundary height of physical obstacles, the boundary intensity of electromagnetic interference, the average boundary temperature of the environment, and the average boundary humidity of the environment. The environmental impact data of each demand switching frequency band substation port are compared and analyzed to obtain the environmental impact value of each demand switching frequency band substation port.

[0028] As a preferred technical solution, the comprehensive analysis and processing obtains the frequency band matching tags of each preparatory switching frequency band substation port, and the specific processing conditions are:

[0029] A set of unit deviation factors corresponding to the communication hardware performance parameters are extracted from the database, including the unit deviation factor corresponding to the effective communication distance, the unit deviation factor corresponding to MTBF, the unit deviation factor corresponding to MTTR and the unit deviation factor corresponding to the cumulative working time. A comprehensive analysis is performed with the communication hardware performance parameters of the substation ports of each demand switching frequency band to obtain the communication hardware performance characteristic values ​​of the substation ports of each demand switching frequency band.

[0030] Based on the communication hardware performance characteristics of each prepared switching frequency band substation port and the environmental impact value of each prepared switching frequency band port, a frequency band matching label of each prepared switching frequency band substation port is obtained through joint analysis.

[0031] As a preferred technical solution, the obtaining of the communication hardware performance results of each frequency conversion port requiring switching frequency bands also includes:

[0032] If the hardware performance characteristic value of a substation port is less than or equal to the hardware performance characteristic threshold, the hardware performance of the substation port is determined to require maintenance, and a maintenance signal is sent to the management terminal. If the hardware performance characteristic value of a substation port is greater than the hardware performance characteristic threshold, the hardware performance of the substation port is determined to be good, and the substation ports of each demand switching frequency band with good hardware performance are counted as the substation ports of each standby switching frequency band.

[0033] As a preferred technical solution, the frequency band matching tags of each power conversion port to be prepared for switching frequency bands are obtained, and the specific processing conditions are:

[0034]

[0035] Among them, B c The frequency band matching label of the cth frequency band conversion port to be switched, Match the first label for the frequency band, Match the second tag for the frequency band, Match the third tag for the frequency band, The fourth label for the frequency band matching, N c is the communication hardware performance characteristic value of the cth pre-switching frequency band substation port, E cis the environmental impact value of the cth substation port for the prepared switching frequency band, c is the number of the substation port for the prepared switching frequency band, c=1,2,3,...,y, y is the total number of substation ports for the prepared switching frequency band, θ is the communication hardware performance characteristic threshold, is the characteristic threshold of environmental impact.

[0036] In addition, the present invention also provides an intelligent operation and maintenance management method for power equipment, comprising:

[0037] The substation equipment on the remote transmission line is recorded as each substation port of the transmission line, the communication transmission data parameters of each substation port are obtained, and the communication transmission characteristic values ​​of each substation port are generated through processing and analysis.

[0038] The network performance parameters of the frequency bands used for communication at each substation port are collected, and are processed and analyzed together with the communication transmission characteristic values ​​of each substation port to generate the frequency band transmission evaluation values ​​of each substation port, and the frequency band transmission evaluation results of each substation port are obtained.

[0039] The substation ports with unqualified frequency band transmission evaluation results are counted and recorded as the substation ports of each demand switching frequency band, and the communication impact range value of each demand switching frequency band substation port is generated through processing and analysis.

[0040] Call up the integrated monitor of each demand switching frequency band substation port, extract the environmental impact data within the communication impact range value, monitor the communication hardware performance of each demand switching frequency band substation port, obtain the communication hardware performance results of each demand switching frequency band substation port, and obtain the frequency band matching label of each standby switching frequency band substation port through comprehensive analysis and processing.

[0041] Based on the frequency band matching tags of each prepared switching frequency band substation port, switching operation and maintenance management is performed on the frequency band used for communication of each prepared switching frequency band substation port.

[0042] Compared with the prior art, the embodiments of the present invention have at least the following beneficial effects:

[0043] (1) The present invention provides an intelligent operation and maintenance management system for electric power equipment. By monitoring the communication transmission data of substation equipment on remote transmission lines, it is determined whether the communication transmission of each port is normal, and abnormal conditions can be discovered in time. By collecting the network performance parameters of the frequency band used for communication at each port and monitoring the usage status of each frequency band, the frequency band transmission evaluation results of each port are obtained, and it is determined whether the frequency band needs to be switched, thereby improving the operation and maintenance efficiency.

[0044] (2) The present invention optimizes network planning by extracting environmental impact data within the communication impact range value, fully considers the impact of the environment on communication, tries to reduce the negative impact of the environment on communication, improves communication quality, and enhances the reliability of communication transmission.

[0045] (3) The present invention obtains the frequency band of each frequency band switching port by analyzing the communication hardware performance characteristics of each frequency band switching port in combination with the environmental impact value, optimizes the frequency band selection, ensures that the frequency band switched by each port is the most appropriate frequency band, improves communication quality and communication efficiency, improves signal stability, and reduces bit error rate.

[0046] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the system module of the present invention.

[0048] Figure 2 It is a schematic diagram of the method flow of the present invention. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] See also Figure 1 As shown, an embodiment of the present invention provides an intelligent operation and maintenance management system for electric power equipment, comprising:

[0052] The communication transmission module is used to record the substation equipment on the remote transmission line as each substation port of the transmission line, obtain the communication transmission data parameters of each substation port, and process and analyze to generate the communication transmission characteristic value of each substation port.

[0053] The communication transmission data parameters of each substation port are obtained, and the communication transmission characteristic values ​​of each substation port are generated by processing and analyzing. The specific process is as follows:

[0054] The communication transmission data parameters of each substation port are obtained using network traffic monitoring data.

[0055] The communication transmission data parameters of each substation port include the communication transmission data volume, delay sensitivity and communication transmission frequency of each substation port, and the communication transmission data reference volume, delay sensitivity reference volume and communication transmission reference frequency of each substation port are obtained from the database.

[0056] The communication transmission data volume refers to the total amount of data transmitted through the substation port in a unit time. In the embodiment of the present invention, the unit time is 1s. Monitoring the data volume can timely detect network congestion or abnormal traffic, so as to take measures to ensure network performance.

[0057] Delay sensitivity describes the tolerance of a communication system to data transmission delays. By identifying delay sensitivity, network devices can be configured to prioritize these flows. For systems with extremely high real-time requirements such as control systems, low latency is the key to ensuring stable system operation. In an embodiment of the present invention, by monitoring each substation port within a unit time, delays of different time scales, such as 10ms, 5ms, and 1ms, are introduced to obtain the maximum tolerable delay of each substation port, and the maximum tolerable delay of each substation port is used as the delay sensitivity of each substation port.

[0058] Communication transmission frequency refers to how often data transmission occurs, which can be expressed as the number of packets or transactions transmitted per second. High-frequency communication usually requires more network resources, such as bandwidth, cache, and processing power.

[0059] The communication transmission data volume and communication transmission frequency of each substation port are compared and analyzed with the communication transmission data reference volume, delay sensitivity reference volume and communication transmission reference frequency respectively to obtain the communication transmission characteristic value of each substation port, including:

[0060]

[0061] Among them, Z x is the communication transmission characteristic value of the x-th substation port, q x is the communication transmission data volume of the xth substation port, de x is the delay sensitivity of the x-th transformer port, f x is the communication transmission frequency of the xth substation port, q x,0 is the reference amount of communication transmission data of the xth substation port, de x,0 is the delay sensitivity reference of the x-th substation port, f x,0 is the communication transmission reference frequency of the x-th substation port, x is the number of the substation port, x=1,2,3,...,m, m is the total number of substation ports.

[0062] It should be noted that the communication transmission data parameters of each substation port include the communication transmission data volume, delay sensitivity and communication transmission frequency of each substation port. There is a certain correlation between these parameters. Communication with large data volume usually increases network delay, especially when the network bandwidth is not enough to process this data. Therefore, communication with large data volume often requires higher network resources to maintain low delay. If applications with high delay sensitivity need to transmit a large amount of data, the network must be optimized to reduce delay. High communication transmission frequency means that the amount of data transmitted per unit time is usually large. If the amount of data increases and the transmission frequency remains high, the total load of the network will increase significantly. Communications with high frequency and large data volume usually require wider bandwidth and more efficient network equipment to handle to avoid network congestion. Communications with high delay sensitivity usually require low delay and high frequency response. For example, real-time control systems usually need to send and receive data frequently and are very sensitive to delay. If the network cannot handle high-frequency communication and causes delays, the performance of delay-sensitive applications will be impaired. These three parameters together determine the network capacity and performance requirements. Network resources need to be configured according to these parameters to ensure that the network can meet the needs of different applications. There are also constraints between these parameters. For example, increasing the amount of data usually increases latency, while reducing latency usually requires reducing the amount of data or reducing the frequency of communication.

[0063] The frequency band transmission module is used to collect the network performance parameters of the frequency band used for communication of each substation port, and jointly process and analyze the communication transmission characteristic values ​​of each substation port to generate the frequency band transmission evaluation value of each substation port, and obtain the frequency band transmission evaluation result of each substation port.

[0064] The collecting of network performance parameters of the frequency band used for communication of each substation port and jointly processing and analyzing the communication transmission characteristic values ​​of each substation port to generate the frequency band transmission evaluation value of each substation port specifically includes:

[0065] Use a network analyzer to collect network performance parameters of the frequency band used for communication at each substation port.

[0066] The network performance parameters of the frequency bands used for communication at each substation port include data transmission rate, data transmission bit error rate, SINR and carrier-to-interference ratio of the frequency bands used for communication at each substation port.

[0067] The data transmission rate refers to the amount of data successfully transmitted through the wireless frequency band in a unit time, usually expressed in bits per second (bps) or megabits per second (Mbps). In the embodiment of the present invention, the unit time is 1s, and the data transmission rate directly reflects the bandwidth capacity and efficiency of the network.

[0068] The data transmission bit error rate refers to the ratio of the number of erroneous bits to the total number of bits in the data transmission process within a certain period of time. The data transmission bit error rate is an important indicator to measure the reliability of data transmission. A low data transmission bit error rate means high data transmission quality, while a high data transmission bit error rate usually leads to data damage or loss, affecting the accuracy of communication.

[0069] SINR (Signal-to-Interference-plus-Noise Ratio) is the ratio of signal power to noise power, usually expressed in decibels (dB). SINR is a key parameter for measuring wireless signal quality. A high SINR means that the signal is stronger than the noise and the communication quality is good. A low SINR means that the noise level is high, which usually affects the signal clarity and data transmission rate.

[0070] The carrier-to-interference ratio refers to the ratio of the useful signal power to the interference signal power, and is usually expressed in decibels (dB). The carrier-to-interference ratio is an important parameter for evaluating the performance of wireless communication systems. A high carrier-to-interference ratio means that the signal is stronger relative to the interference, which helps to improve the reliability and rate of data transmission and reduce the bit error rate of data transmission.

[0071] The unit index factors of network performance parameters of the frequency bands used for communication of each substation port are extracted from the database, including the unit index factors of data transmission rate, data transmission bit error rate, SINR and carrier-to-interference ratio of the frequency bands used for communication of each substation port.

[0072] Based on the communication transmission characteristic value of each substation port, mapping and matching are performed with the communication transmission impact factor corresponding to each communication transmission characteristic value interval pre-stored in the database to obtain the communication transmission impact factor of each substation port.

[0073] The network performance parameters, unit index factors of network performance parameters and communication transmission influencing factors of the frequency bands used for communication of each substation port are comprehensively analyzed and processed to obtain the frequency band transmission evaluation value of each substation port, including:

[0074]

[0075] Among them, P x is the frequency band transmission evaluation value of the x-th substation port, v x is the data transmission rate of the frequency band used by the xth substation port, fa x is the data transmission bit error rate of the frequency band used by the x-th substation port, SINR x is the SINR of the frequency band used by the xth substation port, b x is the carrier-to-interference ratio of the frequency band used by the xth substation port, α 1,xis the unit index factor of the data transmission rate of the frequency band used by the x-th substation port, α 2,x is the unit index factor of the data transmission bit error rate of the frequency band used by the x-th substation port, α 3,x is the SINR unit index factor of the frequency band used by the x-th substation port, α 4,x is the carrier-to-interference ratio unit index factor of the frequency band used by the x-th substation port, δ x is the communication transmission impact factor of the x-th substation port, x is the number of the substation port, x = 1, 2, 3, ..., m, m is the total number of substation ports, Mish function is the activation function, Mish (x) = x * tanh [softplus (x)].

[0076] It should be noted that the data transmission rate unit index factor, data transmission bit error rate unit index factor, SINR unit index factor and carrier-to-interference ratio unit index factor can be directly obtained from the database when used, and the corresponding relationship is a pre-set mapping relationship. For example, the network performance parameters of the substation port are respectively mapped with the data transmission rate unit index factor, the data transmission bit error rate unit index factor, the SINR unit index factor and the carrier-to-interference ratio unit index factor to form a mapping set, and the substation port communication involved in the embodiment of the present invention is used for The network performance parameters of the frequency band are input into a mapping set for mapping and matching to obtain the data transmission rate unit index factor, data transmission bit error rate unit index factor, SINR unit index factor and carrier-to-interference ratio unit index factor of the frequency band used for communication of each substation port involved in an embodiment of the present invention, wherein the mapping relationship is one-to-one corresponding, for example, the data transmission rate, data transmission bit error rate, SINR and carrier-to-interference ratio of the frequency band used for communication of a certain substation port are respectively input into the mapping set, and the data transmission rate unit index factor, data transmission bit error rate unit index factor, SINR unit index factor and carrier-to-interference ratio unit index factor of the frequency band used for communication of the substation port are obtained through matching with a preset mapping relationship.

[0077] It should be noted that the network performance parameters of the frequency bands used for communication of each substation port include the data transmission rate, data transmission bit error rate, SINR and carrier-to-interference ratio of the frequency bands used for communication of each substation port. There is a certain correlation between these parameters, and the data transmission rate is usually positively correlated with SINR. The higher the SINR, the better the signal quality, and the network can adopt a higher-order modulation and coding scheme to increase the data transmission rate. If the SINR decreases, in order to maintain a certain data transmission bit error rate, it is usually necessary to reduce the data transmission rate. The data transmission bit error rate is negatively correlated with SINR. The higher the SINR, the relatively smaller the interference and noise in the signal, so the data transmission bit error rate is lower. Improving SINR can reduce the data transmission bit error rate and improve the reliability of data transmission. Carrier-to-interference ratio is a component of SINR, which measures the ratio of useful signal power to interference signal power. SINR is the ratio of carrier-to-interference ratio to noise power. Increasing the carrier-to-interference ratio can increase SINR, thereby improving the data transmission rate and reducing the data transmission bit error rate. There is a trade-off between the data transmission rate and the data transmission bit error rate. In order to increase the data transmission rate, it is usually necessary to adopt a more efficient modulation and coding scheme, but this usually increases the data transmission bit error rate. If the data transmission bit error rate exceeds a certain threshold, it is usually necessary to reduce the data transmission rate to ensure the reliability of data transmission. A higher carrier-to-interference ratio means less interference, which helps to reduce the data transmission bit error rate. Improving the carrier-to-interference ratio can reduce errors caused by interference, thereby reducing the data transmission bit error rate. SINR and carrier-to-interference ratio are indicators of signal quality, which directly affect the data transmission rate and data transmission bit error rate. The data transmission rate reflects the efficiency of data transmission, while the data transmission bit error rate reflects the reliability of data transmission. These parameters affect each other, and changes in one parameter usually cause corresponding changes in other parameters, so these parameters need to be considered comprehensively when optimizing the network.

[0078] The obtaining of the frequency band transmission evaluation results of each substation port specifically includes:

[0079] The frequency band transmission evaluation value of each substation port is compared with the frequency band transmission evaluation threshold. If the frequency band transmission evaluation value of a substation port is greater than or equal to the frequency band transmission evaluation threshold, the frequency band transmission evaluation result of the substation port is determined to be qualified.

[0080] If the frequency band transmission evaluation value of a certain substation port is less than the frequency band transmission evaluation threshold, the frequency band transmission evaluation result of the substation port is determined to be unqualified.

[0081] The frequency band transmission evaluation threshold is processed as follows: In a specific embodiment, the frequency band transmission evaluation threshold is directly set in the database during the development of the intelligent operation and maintenance management system of the electric power equipment involved in the embodiment of the present invention. The method for setting the frequency band transmission evaluation threshold includes multiple methods, such as obtaining it through statistical analysis, including statistics on the historical appropriate frequency band transmission status (for example, the data transmission bit error rate is less than or equal to 10 -6 The frequency band transmission evaluation value under the condition of high frequency band transmission evaluation value at the time (when the frequency band transmission evaluation value is the same as the frequency band transmission evaluation value at the time), and the frequency band transmission evaluation values ​​obtained multiple times are averaged to obtain the frequency band transmission evaluation threshold, or the expert judges the boundary between the high frequency band transmission evaluation value and the low frequency band transmission evaluation value through the corresponding historical data to set it, thereby adjusting the threshold.

[0082] The communication impact range module is used to count the substation ports with unqualified frequency band transmission evaluation results, record them as the substation ports of each demand switching frequency band, and process and analyze to generate the communication impact range value of each demand switching frequency band substation port.

[0083] The processing and analysis generates the communication impact range value of each demand switching frequency band substation port, specifically including:

[0084] The frequency band transmission evaluation value of each demand switching frequency band substation port is counted, and the difference processing is performed with the frequency band transmission evaluation threshold to obtain the frequency band transmission impact value of each demand switching frequency band substation port.

[0085] Based on the frequency band transmission impact value of each demand switching frequency band substation port, mapping and matching are performed with the communication impact range value corresponding to each frequency band transmission impact value interval pre-stored in the database to obtain the communication impact range value of each demand switching frequency band substation port.

[0086] The frequency band matching module is used to call the integrated monitor of each demand switching frequency band substation port, extract the environmental impact data within the communication impact range value, monitor the communication hardware performance of each demand switching frequency band substation port, obtain the communication hardware performance results of each demand switching frequency band substation port, and obtain the frequency band matching label of each prepared switching frequency band substation port through comprehensive analysis and processing.

[0087] The extracting of environmental impact data within the communication impact range value specifically includes:

[0088] The integrated monitor of each substation port of each frequency band that needs to be switched is called to extract the environmental impact data within the communication impact range value, including the average height of physical obstacles within the communication impact range value, electromagnetic interference intensity, average ambient temperature and average ambient humidity.

[0089] The average height of physical obstacles refers to the average height of all physical obstacles (such as buildings, trees, etc.) within the communication influence range. For example, in another embodiment of the invention, the communication influence range is the wireless signal coverage area. The height of physical obstacles directly affects the propagation and coverage of wireless signals. Higher obstacles may cause signal attenuation or blockage, thereby affecting communication quality.

[0090] Electromagnetic interference intensity refers to the intensity of electromagnetic interference generated by other electronic devices and wireless signal sources within the communication influence range. The intensity of electromagnetic interference will affect the reception quality of wireless signals. High-intensity electromagnetic interference may cause signal distortion or increase the bit error rate of data transmission, thereby reducing communication performance.

[0091] The average ambient temperature refers to the average temperature of the environment within the communication influence range. Temperature has a significant impact on the performance of electronic equipment. Too high or too low temperature may affect the operating efficiency and reliability of the equipment, and thus affect the performance of the communication equipment.

[0092] The average humidity of the environment refers to the average humidity of the environment within the communication influence range. Humidity has an impact on the heat dissipation and insulation performance of electronic equipment. High humidity may cause condensation inside the equipment, causing short circuits or corrosion, while low humidity may cause static electricity accumulation and damage electronic components.

[0093] The communication hardware performance parameters of the substation ports in each required switching frequency band are obtained through network monitoring software, including effective communication distance, MTBF, MTTR and cumulative working time.

[0094] The effective communication distance refers to the maximum distance at which the communication hardware (such as wireless access points, antennas, etc.) can reliably transmit and receive data. This parameter helps determine the coverage of the substation port.

[0095] MTBF (Mean Time Between Failures) refers to the average time between two failures during continuous normal operation of communication hardware. MTBF is a key indicator for measuring hardware reliability. A higher MTBF value indicates that the device is more reliable and requires less maintenance.

[0096] MTTR (Mean Time To Repair) refers to the average time it takes for a device to return to normal working condition after a failure. MTTR measures the efficiency of maintenance and repair of failures. A lower MTTR value means faster failure recovery, which is critical to ensuring communication continuity and reducing downtime.

[0097] Cumulative operating hours is the cumulative operating time of the communication hardware since it was last replaced. It helps to track the wear and tear of the equipment.

[0098] Extract the boundary value set of environmental impact data from the database, including the average boundary height of physical obstacles, the boundary strength of electromagnetic interference, the average boundary temperature of the environment, and the average boundary humidity of the environment. Compare and analyze the environmental impact data of the substation ports of each demand switching frequency band to obtain the environmental impact value of each demand switching frequency band substation port, including:

[0099]

[0100] Among them, E i is the environmental impact value of the substation port with the i-th demand switching frequency band, is the average height of physical obstacles at the substation port of the i-th demand switching frequency band, is the electromagnetic interference intensity of the power conversion port of the i-th demand switching frequency band, is the average ambient temperature of the power substation port at the i-th demand switching frequency band, is the average humidity of the environment at the power substation port of the i-th demand switching frequency band, is the average limit height of physical obstacles, is the electromagnetic interference limit strength, is the average limit temperature of the environment, is the average limit humidity of the environment, γ1 is the average height weight factor of physical obstacles, γ2 is the electromagnetic interference intensity weight factor, γ3 is the average temperature weight factor of the environment, γ4 is the average humidity weight factor of the environment, i is the number of the substation port of the demand switching frequency band, i = 1, 2, 3, ..., n, n is the total number of substation ports of the demand switching frequency band.

[0101] It should be noted that the physical obstacle average height weight factor, electromagnetic interference intensity weight factor, environmental average temperature weight factor and environmental average humidity weight factor all have value ranges between 0 and 1, and satisfy γ1+γ2+γ3+γ4=1. The physical obstacle average height weight factor is an influence factor corresponding to the environmental impact value of the demand switching frequency band substation port preset in the database, indicating the numerical value of the influence degree of the average height of the physical obstacle on the environmental impact value of the demand switching frequency band substation port. The electromagnetic interference intensity weight factor is an influence factor corresponding to the environmental impact value of the demand switching frequency band substation port preset in the database, indicating the numerical value of the influence degree of the electromagnetic interference intensity on the environmental impact value of the demand switching frequency band substation port. The environmental average temperature weight factor is an influence factor corresponding to the environmental impact value of the demand switching frequency band substation port preset in the database, indicating the numerical value of the influence degree of the environmental average temperature on the environmental impact value of the demand switching frequency band substation port. The environmental average humidity average height weight factor is an influence factor corresponding to the environmental impact value of the demand switching frequency band substation port preset in the database, indicating the numerical value of the influence degree of the environmental average humidity on the environmental impact value of the demand switching frequency band substation port. When used, the average height weight factor of the physical obstacle, the electromagnetic interference intensity weight factor, the average temperature weight factor of the environment and the average humidity weight factor of the environment can be directly obtained from the database, and the corresponding relationship is a preset mapping relationship. For example, the environmental impact data of the demand switching frequency band substation port are respectively mapped with the average height weight factor of the physical obstacle, the electromagnetic interference intensity weight factor, the average temperature weight factor of the environment and the average humidity weight factor of the environment to form a mapping set. The environmental impact data of the demand switching frequency band substation port involved in the embodiment of the present invention is input into the mapping set for mapping and matching to obtain the average height weight factor of the physical obstacle, the electromagnetic interference intensity weight factor, the average temperature weight factor of the environment and the average humidity weight factor of the environment of the demand switching frequency band substation port involved in the embodiment of the present invention. The mapping relationship is one-to-one correspondence. For example, the average height of the physical obstacle, the electromagnetic interference intensity, the average temperature of the environment and the average humidity of the environment of the demand switching frequency band substation port are input into the mapping set, and the average height weight factor of the physical obstacle, the electromagnetic interference intensity weight factor, the average temperature weight factor of the environment and the average humidity weight factor of the environment of the demand switching frequency band substation port are obtained through matching of the preset mapping relationship.

[0102] It should be noted that the environmental impact data within the communication impact range value includes the average height of physical obstacles within the communication impact range value, the electromagnetic interference intensity, the average environmental temperature and the average environmental humidity. There is a certain correlation between these parameters. Physical obstacles such as buildings may block or reflect wireless signals, thereby affecting the propagation of signals. If the obstacle is high, it may cause insufficient signal coverage and may also increase the intensity of electromagnetic interference, because the signal may need to reach the receiver through more reflection and refraction paths. Physical obstacles may affect the temperature and humidity of the local environment. For example, buildings may block sunlight, resulting in lower temperatures or increased humidity in certain areas. The intensity of electromagnetic interference is usually not directly affected by ambient temperature and humidity, but high temperature or high humidity environments may affect the performance of electronic devices, making them more susceptible to electromagnetic interference. Temperature and humidity are usually interrelated. For example, increased temperature may increase the moisture content in the air, thereby increasing humidity. In turn, changes in humidity may also affect temperature perception. The average height of physical obstacles directly affects the propagation path and coverage of wireless signals. High obstacles may cause signal attenuation, and increased electromagnetic interference intensity may further weaken signal quality. Ambient temperature and humidity affect the heat dissipation and electrical performance of electronic devices. High temperature or high humidity may cause equipment to overheat or corrode, increasing the failure rate and sensitivity to electromagnetic interference. These parameters together affect the quality of communication. For example, high obstacles and strong electromagnetic interference may cause signal quality to degrade, while extreme temperature and humidity conditions may cause equipment performance to degrade, thus affecting communication effects.

[0103] The unit deviation factors corresponding to the communication hardware performance parameters are extracted from the database, including the unit deviation factors corresponding to the effective communication distance, the unit deviation factors corresponding to the MTBF, the unit deviation factors corresponding to the MTTR, and the unit deviation factors corresponding to the accumulated working hours. The communication hardware performance parameters of the substation ports of each demand switching frequency band are comprehensively analyzed and processed to obtain the communication hardware performance characteristic values ​​of the substation ports of each demand switching frequency band, including:

[0104]

[0105] Among them, N i is the communication hardware performance characteristic value of the power conversion port with the i-th demand switching frequency band, l i is the effective communication distance of the substation port in the i-th demand switching frequency band, MTBF i is the MTBF and MTTR of the substation port in the i-th demand switching band i is the MTTR of the substation port in the i-th demand switching frequency band, p i is the cumulative working time of the power conversion port of the i-th demand switching frequency band, is the unit deviation factor corresponding to the effective communication distance, is the unit deviation factor corresponding to MTBF, is the unit deviation factor corresponding to MTTR, is the unit deviation factor corresponding to the cumulative working time, i is the number of the substation port in the demand switching frequency band, i=1,2,3,...,n, n is the total number of substation ports in the demand switching frequency band,

[0106] It should be noted that the unit deviation factor corresponding to the effective communication distance, the unit deviation factor corresponding to the MTBF, the unit deviation factor corresponding to the MTTR, and the unit deviation factor corresponding to the cumulative working time can be directly obtained from the database when used, and the corresponding relationship is a preset mapping relationship. For example, the communication hardware performance parameters of the frequency band substation port required to switch are respectively mapped with the unit deviation factor corresponding to the effective communication distance, the unit deviation factor corresponding to the MTBF, the unit deviation factor corresponding to the MTTR, and the unit deviation factor corresponding to the cumulative working time to form a mapping set, and the embodiments of the present invention are involved in The communication hardware performance parameters of each demand switching frequency band substation port are input into a mapping set for mapping and matching to obtain the unit deviation factor corresponding to the effective communication distance, the unit deviation factor corresponding to MTBF, the unit deviation factor corresponding to MTTR, and the unit deviation factor corresponding to the cumulative working time of each demand switching frequency band substation port involved in an embodiment of the present invention, wherein the mapping relationship is one-to-one correspondence, for example, the effective communication distance, MTBF, MTTR and cumulative working time of a demand switching frequency band substation port are respectively input into the mapping set, and the unit deviation factor corresponding to the effective communication distance, the unit deviation factor corresponding to MTBF, the unit deviation factor corresponding to MTTR, and the unit deviation factor corresponding to the cumulative working time of the demand switching frequency band substation port are obtained through matching through a preset mapping relationship.

[0107] It should be noted that the communication hardware performance parameters of the substation ports of each demand switching frequency band, including effective communication distance, MTBF, MTTR and cumulative working time, have a certain correlation, and the effective communication distance may change with the increase of cumulative working time. As the equipment is used for a longer time, the hardware may shorten the communication distance due to wear or aging. Long-term cumulative work may require more frequent maintenance or replacement to maintain the original communication distance. MTBF is an indicator of equipment reliability, and the cumulative working time reflects the actual use of the equipment. As the cumulative working time increases, the MTBF of the equipment may decrease because the equipment is more likely to be close to its failure cycle. MTBF and MTTR together determine the overall availability of the equipment. The higher the MTBF, the less frequently the equipment fails; the lower the MTTR, the faster the equipment recovers from failures. A high MTBF value and a low MTTR value can significantly improve the reliability of the system and reduce downtime. MTTR can affect the cumulative working time of the equipment. If the MTTR is high, it means that the equipment often needs to be repaired, which will reduce its effective working time. By reducing MTTR, the cumulative working time of the equipment can be increased, thereby improving the operating efficiency of the overall system. MTBF and MTTR are directly related to the reliability of the equipment, while the cumulative working time can indirectly reflect the reliability of the equipment.

[0108] If the hardware performance characteristic value of a substation port is less than or equal to the hardware performance characteristic threshold, the hardware performance of the substation port is determined to require maintenance, and a maintenance signal is sent to the management terminal. If the hardware performance characteristic value of a substation port is greater than the hardware performance characteristic threshold, the hardware performance of the substation port is determined to be good, and the substation ports of each demand switching frequency band with good hardware performance are counted as the substation ports of each standby switching frequency band.

[0109] In an embodiment of the present invention, the frequency band matching label includes a first frequency band matching label, a second frequency band matching label, a third frequency band matching label and a fourth frequency band matching label, each of the frequency band matching labels corresponds to a frequency band, for example, the first frequency band matching label corresponds to a microwave frequency band, the second frequency band matching label corresponds to a shortwave frequency band, the third frequency band matching label corresponds to a medium wave frequency band, and the fourth frequency band matching label corresponds to a long wave frequency band.

[0110] The long wave band (30kHz-300kHz) is usually more suitable for harsh wireless transmission conditions. The reasons include: long waves have good diffraction ability and can bypass obstacles such as mountains and buildings. Long waves can be transmitted over long distances and are suitable for wide coverage communications. Long waves are mainly propagated through ground waves and are less affected by the ionosphere, so they are relatively stable under complex meteorological conditions. Long waves can penetrate buildings and underground and are suitable for specific communication needs, such as submarine communications.

[0111] The medium wave band (300kHz-3MHz) has a poorer diffraction capability than long waves, but can still penetrate some obstacles. Medium waves can travel long distances by reflecting off the ionosphere at night, but rely mainly on ground waves during the day. The medium wave band is widely used for AM broadcasting and has a wide coverage area.

[0112] The shortwave band (3MHz-30MHz) is highly dependent on the state of the ionosphere. The fluctuation of the ionosphere will affect the propagation of shortwave, resulting in unstable signals. Shortwave can achieve long-distance propagation through ionosphere reflection, but multi-hop propagation may cause signal attenuation and interference. Shortwave communication equipment is usually small, easy to move and deploy. Compared with other frequency bands, shortwave communication equipment and operating costs are lower. In disasters or emergencies, shortwave communication can serve as a reliable backup communication method.

[0113] The microwave frequency band (1GHz-50GHz) mainly propagates along a straight path, has poor diffraction ability, and is easily affected by obstacles. When microwaves propagate in the atmosphere, water vapor and oxygen absorb microwaves of specific frequencies, causing signal attenuation. Microwave propagation is greatly affected by weather conditions such as rain, fog, and snow, which can cause signal attenuation and distortion. However, the microwave frequency band provides extremely high bandwidth and is suitable for high-speed data transmission. Microwave antennas can accurately point to targets, reducing interference and signal leakage. : Compared with lower frequency bands, microwave antennas can be made smaller, making them easier to install and use. Microwave frequency bands are widely used in satellite communications, radar, wireless LANs, and mobile communications.

[0114] Obtain the frequency band matching label of each power conversion port for the prepared switching frequency band. The specific processing conditions are:

[0115]

[0116] Among them, B c The frequency band matching label of the cth frequency band conversion port to be switched, Match the first label for the frequency band, Match the second tag for the frequency band, Match the third tag for the frequency band, The fourth label for the frequency band matching, N c is the communication hardware performance characteristic value of the cth pre-switching frequency band substation port, E c is the environmental impact value of the cth substation port for the prepared switching frequency band, c is the number of the substation port for the prepared switching frequency band, c=1,2,3,...,y, y is the total number of substation ports for the prepared switching frequency band, θ is the communication hardware performance characteristic threshold, is the characteristic threshold of environmental impact.

[0117] The communication hardware performance characteristic threshold is processed as follows: in a specific embodiment, the communication hardware performance characteristic threshold is set directly in the database during the development of the intelligent operation and maintenance management system of the electric power equipment involved in the embodiment of the present invention. There are many methods for setting the communication hardware performance characteristic threshold, such as obtaining it through statistical analysis, including counting the communication hardware performance characteristic values ​​under historical high communication hardware performance characteristic values ​​(for example, the effective communication distance is greater than or equal to 100 kilometers), and averaging the communication hardware performance characteristic values ​​obtained multiple times to obtain the communication hardware performance characteristic threshold, or experts judge the boundary between high communication hardware performance characteristic values ​​and low communication hardware performance characteristic values ​​through corresponding historical data to set the threshold, thereby adjusting the threshold.

[0118] The environmental impact characteristic threshold is processed as follows: in a specific embodiment, the environmental impact characteristic threshold is set directly in the database during the development of the intelligent operation and maintenance management system of the electric power equipment involved in the embodiment of the present invention. There are many methods for setting the environmental impact characteristic threshold, such as obtaining it through statistical analysis, including statistically analyzing the environmental impact characteristic values ​​under historical high environmental impacts (for example, the average height of physical obstacles is greater than or equal to 100 meters), and averaging the environmental impact characteristic values ​​obtained multiple times to obtain the common environmental impact characteristic threshold, or experts judge the boundary between high environmental impact characteristic values ​​and low environmental impact characteristic values ​​through corresponding historical data to set the threshold, thereby adjusting the threshold.

[0119] The frequency band switching module is used to switch the frequency band used for communication of each prepared switching frequency band substation port based on the frequency band matching label of each prepared switching frequency band substation port.

[0120] Based on the frequency band matching tags of each prepared switching frequency band transformer port, mapping matching is performed with the frequency band corresponding to each frequency band matching tag, and the switching frequency band of each prepared switching frequency band transformer port is obtained and switched.

[0121] In this embodiment, the present invention provides an intelligent operation and maintenance management method for power equipment, including:

[0122] The substation equipment on the remote transmission line is recorded as each substation port of the transmission line, the communication transmission data parameters of each substation port are obtained, and the communication transmission characteristic values ​​of each substation port are generated through processing and analysis.

[0123] The network performance parameters of the frequency bands used for communication at each substation port are collected, and are processed and analyzed together with the communication transmission characteristic values ​​of each substation port to generate the frequency band transmission evaluation values ​​of each substation port, and the frequency band transmission evaluation results of each substation port are obtained.

[0124] The substation ports with unqualified frequency band transmission evaluation results are counted and recorded as the substation ports of each demand switching frequency band, and the communication impact range value of each demand switching frequency band substation port is generated through processing and analysis.

[0125] Call up the integrated monitor of each demand switching frequency band substation port, extract the environmental impact data within the communication impact range value, monitor the communication hardware performance of each demand switching frequency band substation port, obtain the communication hardware performance results of each demand switching frequency band substation port, and obtain the frequency band matching label of each standby switching frequency band substation port through comprehensive analysis and processing.

[0126] The frequency band used for communication of each prepared switching frequency band power conversion port is switched based on the frequency band matching tag of each prepared switching frequency band power conversion port.

[0127] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0128] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can understand and use the present invention well. As long as they do not deviate from the structure of the present invention or exceed the scope defined by the present invention, they should all belong to the protection scope of the present invention.

Claims

1. Intelligent operation and maintenance management system for power equipment, characterized in that: include: The communication transmission module is used to record the substation equipment on the remote transmission line as each substation port of the transmission line, obtain the communication transmission data parameters of each substation port, and process and analyze to generate the communication transmission characteristic value of each substation port; The frequency band transmission module is used to collect the network performance parameters of the frequency band used for communication of each substation port, and jointly process and analyze the communication transmission characteristic values ​​of each substation port to generate the frequency band transmission evaluation value of each substation port, and obtain the frequency band transmission evaluation result of each substation port; The communication impact range module is used to count the substation ports with unqualified frequency band transmission evaluation results, record them as the substation ports of each demand switching frequency band, and process and analyze to generate the communication impact range value of each demand switching frequency band substation port; The frequency band matching module is used to call the integrated monitor of each demand switching frequency band substation port, extract the environmental impact data within the communication impact range value, monitor the communication hardware performance of each demand switching frequency band substation port, obtain the communication hardware performance results of each demand switching frequency band substation port, and obtain the frequency band matching label of each standby switching frequency band substation port through comprehensive analysis and processing; The frequency band switching module is used to perform switching operation and maintenance management on the frequency band used for communication of each prepared switching frequency band substation port based on the frequency band matching label of each prepared switching frequency band substation port.

2. According to claim 1, the intelligent operation and maintenance management system for electric power equipment is characterized by: The communication transmission data parameters of each substation port are obtained, and the communication transmission characteristic values ​​of each substation port are generated by processing and analyzing. The specific process is as follows: The communication transmission data parameters of each substation port include the communication transmission data volume, delay sensitivity and communication transmission frequency of each substation port, and the communication transmission data reference volume, delay sensitivity reference volume and communication transmission reference frequency of each substation port are obtained from the database; The communication transmission data volume, delay sensitivity and communication transmission frequency of each substation port are compared and analyzed with the communication transmission data reference volume, delay sensitivity reference volume and communication transmission reference frequency respectively to obtain the communication transmission characteristic value of each substation port. The communication transmission characteristic value of each substation port is used to characterize the communication transmission status and importance of each substation port.

3. According to claim 1, the intelligent operation and maintenance management system for electric power equipment is characterized by: The collecting of network performance parameters of the frequency band used for communication of each substation port and jointly processing and analyzing the communication transmission characteristic values ​​of each substation port to generate the frequency band transmission evaluation value of each substation port specifically includes: The network performance parameters of the frequency bands used for communication at each substation port include data transmission rate, data transmission bit error rate, SINR and carrier-to-interference ratio of the frequency bands used for communication at each substation port; Extracting from the database a collection of unit index factors of network performance parameters of the frequency band used for communication of each substation port, including a unit index factor of data transmission rate, a unit index factor of data transmission bit error rate, a unit index factor of SINR, and a unit index factor of carrier-to-interference ratio of the frequency band used for communication of each substation port; Based on the communication transmission characteristic value of each substation port, mapping and matching are performed with the communication transmission impact factor corresponding to each communication transmission characteristic value interval pre-stored in the database to obtain the communication transmission impact factor of each substation port; The network performance parameters of the frequency band used for communication at each substation port, the unit index factors of the network performance parameters and the communication transmission influencing factors are comprehensively analyzed and processed to obtain the frequency band transmission evaluation value of each substation port. The frequency band transmission evaluation value of each substation port is used to evaluate the degree of adaptation of the frequency band used for communication at each substation port and each substation port.

4. According to claim 1, the intelligent operation and maintenance management system for electric power equipment is characterized by: The obtaining of the frequency band transmission evaluation results of each substation port specifically includes: The frequency band transmission evaluation value of each substation port is compared with the frequency band transmission evaluation threshold. If the frequency band transmission evaluation value of a substation port is greater than or equal to the frequency band transmission evaluation threshold, the frequency band transmission evaluation result of the substation port is determined to be qualified. If the frequency band transmission evaluation value of a certain substation port is less than the frequency band transmission evaluation threshold, the frequency band transmission evaluation result of the substation port is determined to be unqualified.

5. According to claim 1, the intelligent operation and maintenance management system for electric power equipment is characterized by: The processing and analysis generates the communication impact range value of each demand switching frequency band substation port, specifically including: The frequency band transmission evaluation value of each demand switching frequency band substation port is counted, and the difference processing is performed with the frequency band transmission evaluation threshold to obtain the frequency band transmission impact value of each demand switching frequency band substation port; Based on the frequency band transmission impact value of each demand switching frequency band substation port, mapping and matching are performed with the communication impact range value corresponding to each frequency band transmission impact value interval pre-stored in the database to obtain the communication impact range value of each demand switching frequency band substation port.

6. The intelligent operation and maintenance management system for electric power equipment according to claim 1, characterized in that: The extracting of environmental impact data within the communication impact range value specifically includes: Retrieve the integrated monitor of each substation port of each frequency band that needs to be switched, and extract the environmental impact data within the communication impact range value, including the average height of physical obstacles within the communication impact range value, electromagnetic interference intensity, average environmental temperature and average environmental humidity; A set of environmental impact data boundary values ​​is extracted from the database, including the average boundary height of physical obstacles, the boundary intensity of electromagnetic interference, the average boundary temperature of the environment, and the average boundary humidity of the environment. The environmental impact data of each demand switching frequency band substation port are compared and analyzed to obtain the environmental impact value of each demand switching frequency band substation port.

7. The intelligent operation and maintenance management system for electric power equipment according to claim 6, characterized in that: The comprehensive analysis and processing obtains the frequency band matching labels of each power conversion port for preparing switching frequency bands, and the specific processing conditions are: A set of unit deviation factors corresponding to the communication hardware performance parameters is extracted from the database, including the unit deviation factor corresponding to the effective communication distance, the unit deviation factor corresponding to the MTBF, the unit deviation factor corresponding to the MTTR, and the unit deviation factor corresponding to the accumulated working time, and a comprehensive analysis is performed with the communication hardware performance parameters of each demand switching frequency band substation port to obtain the communication hardware performance characteristic value of each demand switching frequency band substation port; Based on the communication hardware performance characteristics of each prepared switching frequency band substation port and the environmental impact value of each prepared switching frequency band port, a frequency band matching label of each prepared switching frequency band substation port is obtained through joint analysis.

8. The intelligent operation and maintenance management system for electric power equipment according to claim 1, characterized in that: The obtaining of the communication hardware performance results of each frequency band switching port requires further comprising: If the hardware performance characteristic value of a substation port is less than or equal to the hardware performance characteristic threshold, the hardware performance of the substation port is determined to require maintenance, and a maintenance signal is sent to the management terminal; if the hardware performance characteristic value of a substation port is greater than the hardware performance characteristic threshold, the hardware performance of the substation port is determined to be good, and the substation ports requiring switching frequency bands with good hardware performance are counted as the substation ports requiring standby switching frequency bands.

9. The intelligent operation and maintenance management system for electric power equipment according to claim 7, characterized in that: The specific processing conditions for obtaining the frequency band matching tags of each power conversion port for preparing the switching frequency band are as follows: Among them, B c The frequency band matching label of the cth frequency band conversion port to be switched, Match the first label for the frequency band, Match the second tag for the frequency band, Match the third tag for the frequency band, The fourth label for the frequency band matching, N c is the communication hardware performance characteristic value of the cth pre-switching frequency band substation port, E c is the environmental impact value of the cth substation port for the prepared switching frequency band, c is the number of the substation port for the prepared switching frequency band, c=1,2,3,...,y, y is the total number of substation ports for the prepared switching frequency band, θ is the communication hardware performance characteristic threshold, is the characteristic threshold of environmental impact.

10. The intelligent operation and maintenance management method of power equipment is characterized in that: include: The substation equipment on the remote transmission line is recorded as each substation port of the transmission line, the communication transmission data parameters of each substation port are obtained, and the communication transmission characteristic values ​​of each substation port are generated by processing and analyzing; Collect network performance parameters of the frequency band used for communication at each substation port, and process and analyze them together with the communication transmission characteristic values ​​of each substation port to generate frequency band transmission evaluation values ​​of each substation port, and obtain frequency band transmission evaluation results of each substation port; The substation ports with unqualified frequency band transmission evaluation results are counted and recorded as the substation ports of each demand switching frequency band, and the communication impact range value of each demand switching frequency band substation port is generated by processing and analyzing; Retrieve the integrated monitor of each demand switching frequency band substation port, extract the environmental impact data within the communication impact range value, monitor the communication hardware performance of each demand switching frequency band substation port, obtain the communication hardware performance results of each demand switching frequency band substation port, and obtain the frequency band matching label of each standby switching frequency band substation port through comprehensive analysis and processing; Based on the frequency band matching tags of each prepared switching frequency band substation port, switching operation and maintenance management is performed on the frequency band used for communication of each prepared switching frequency band substation port.

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