Substation monitoring equipment communication method, device, equipment and medium

Abstract

The invention provides a substation monitoring equipment communication method and device, equipment and a medium, and belongs to the technical field of substation monitoring equipment detection. The method comprises the steps of 1, establishing a substation monitoring equipment communication system; 2, when new equipment is added into the system, identifying and registering the new equipment into the monitoring system; and step 3, the monitoring equipment collects various data of the transformer substation according to a preset sampling rate, and a calculation unit is installed at the monitoring equipment. According to the invention, the calculation unit is installed at the monitoring equipment end, and the collected data is preprocessed, encrypted, compressed and classified, so that the data transmission quantity is effectively reduced, particularly useless information is intercepted, urgent data is transmitted preferentially, and the data transmission efficiency and real-time performance are remarkably improved. The method is crucial to the transformer substation which is an application scene with extremely high requirement on real-time performance, can ensure that emergency or key information is processed in time, and avoids meaningless consumption of system resources under the traditional strategy that the network is used up.

Description

Technical Field

[0001] The present invention relates to the technical field of substation monitoring equipment detection, and in particular to a substation monitoring equipment communication method, device, equipment and medium. Background Art

[0002] In the field of substation monitoring, the communication methods between devices show a high degree of diversity and flexibility. Ethernet transmission technology has become the mainstream communication method with its excellent transmission efficiency and stability. This technology is like an information highway, seamlessly connecting the audio stream, video signal and key data of the substation, ensuring that these valuable information can be transmitted across distances in real time and accurately to the heart of the monitoring center, laying a solid foundation for remote monitoring and efficient management.

[0003] However, in the traditional communication mode, the system often adopts a "catch-all" strategy, which aggregates all the acquired computing resources to the remote monitoring center for centralized processing regardless of priority. Although this approach simplifies the process, it also inevitably introduces efficiency bottlenecks: the redundant transmission of non-critical information not only slows down the overall communication speed and increases the network load, but also may invisibly squeeze the precious time window for emergency or important information processing. Therefore, the present invention provides a substation monitoring equipment communication method, device, equipment and medium to meet the needs. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A substation monitoring equipment communication method comprises the following steps:

[0006] Step 1: Establish a substation monitoring equipment communication system;

[0007] Step 2: When a new device is added to the system, it needs to be identified and registered in the monitoring system;

[0008] Step 3: The monitoring equipment collects various data of the substation according to the preset sampling rate, and a computing unit is installed at the monitoring equipment. The computing unit pre-processes the sampled data, encrypts and compresses the collected data, classifies useful data, useless data and urgent data, intercepts useless information, and transmits urgent data preferentially through the previously established communication network, and transmits the encrypted / compressed useful data to the monitoring center in real time or at a fixed time;

[0009] Step 4: After receiving the data, the cloud server performs decryption and / or decompression processing;

[0010] Step 5: When the current exceeds the threshold or the device temperature is too high, the monitoring system automatically triggers an alarm;

[0011] Step 6: Continuously monitor the operating status of the communication system.

[0012] Optionally, the IEC 61850 communication protocol is adopted to design a communication network architecture, including wired (such as optical fiber, Ethernet) and wireless (such as Wi-Fi, Zigbee, LoRa, etc.) connection methods, to ensure that all monitoring devices can access the system stably and efficiently, and to install and configure necessary switches, routers, gateways and monitoring terminals, etc., to ensure that they can support the selected communication protocol.

[0013] Optionally, the identified information includes the entry of the device's IP address, MAC address, model, location and other information, and parameter configuration of the monitoring device, such as sampling rate, alarm threshold, communication address, etc., to ensure that the device can operate according to predetermined rules.

[0014] Optionally, in step 3, according to a preset sampling rate, the monitoring device accurately collects various data of the substation, such as current, voltage, temperature, humidity, etc., and the encryption adopts the AES algorithm calculation formula as follows:

[0015] C=E(K,P), where C represents ciphertext, E represents encryption function, K represents key, and P represents plaintext. The plaintext P is encrypted by encryption function E using key K to obtain ciphertext C. The computing unit divides the data into three categories: useful, useless, and urgent according to the importance and urgency of the data, intercepts useless information, gives priority to transmitting urgent data, and sends the pre-processed data to the monitoring center in real time or at a fixed time through the established communication network.

[0016] Optionally, the cloud server pre-processes the received data (such as filtering, denoising, etc.), and then stores and archives it, and uses data analysis tools or algorithms to monitor, evaluate and predict the operating status of the substation to identify potential problems or failures.

[0017] Optionally, the calculation unit sets up three data evaluation criteria: data type (D), deviation of data value (V) (comparison with normal value or threshold), and freshness of timestamp (T) (i.e., how new or old the data is); assuming that the weight of data type (D) is wD, the weight of data value deviation (V) is wV, and the weight of timestamp freshness (T) is wT, for each data item i, calculate its priority score Si:

[0018] Si=wD·Di+wV·Vthreshold|Vi-Vnormal|+wT·TintervalTcurrent-Ti;wherein: Di is the type weight of data item i (based on the preset weight table), Vi is the actual value of data item i, Vnormal is the normal value or reference value, Vthreshold is the deviation threshold (used to normalize the deviation), Ti is the timestamp of data item i, Tcurrent is the current time, Tinterval is the evaluation time interval (used to normalize the time difference); Expedited data: data whose priority score Si exceeds the preset expedited threshold Turgent. Useful data: data whose priority score Si is between the preset useful threshold Tuseful and the expedited threshold Turgent, useless data: data whose priority score Si is lower than the preset useful threshold Tuseful.

[0019] Optionally, the monitoring includes device status, network status, etc. Once a system failure or device abnormality is found, troubleshooting and repair work is immediately performed. According to the system operation status, communication parameters, device configuration, etc. are regularly adjusted and optimized to improve system performance and stability.

[0020] A substation monitoring equipment communication device comprises a substation monitoring equipment communication system, a monitoring device and a cloud processing terminal; the communication system constructs a stable and efficient communication network architecture through wired and wireless connection methods, optical fiber is suitable for long distance and high bandwidth requirements, and Ethernet is suitable for short distance connection between devices, which jointly ensure the speed and quality of data transmission; the monitoring device accurately collects various data of the substation at a preset sampling rate, such as current, voltage, temperature, humidity, etc., to ensure the accuracy and real-time nature of the data, and a computing unit can be installed at the monitoring device to pre-process, encrypt and compress the collected data, thereby reducing the burden of data transmission and improving the security of the data; the cloud processing terminal is used to receive data from the substation monitoring device, decrypt, decompress and pre-process, thereby improving the quality and availability of the data.

[0021] A computer device comprises a memory and a processor, wherein the memory is connected to the processor, and the processor is used to execute one or a computer program stored in the memory, and when the processor executes the one or the computer program, the computer device implements the instructions of any of the above methods.

[0022] A computer-readable storage medium stores a computer program, which implements the steps of any of the above methods when executed by a processor.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] In the above solution, by installing a computing unit on the monitoring device, the collected data is pre-processed, encrypted, compressed and classified, effectively reducing the amount of data transmission, especially intercepting useless information, giving priority to the transmission of urgent data, and significantly improving the efficiency and real-time performance of data transmission. This is crucial for application scenarios such as substations that have extremely high real-time requirements, ensuring that urgent or critical information is processed in a timely manner, avoiding unnecessary consumption of system resources under the traditional "catch-all" strategy;

[0025] In the above scheme, through intelligent classification and priority setting, computing resources and network resources are reasonably allocated, so that key data can be processed first, and non-key data can be transmitted and processed without affecting the overall performance of the system, thereby improving the utilization of system resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0027] Figure 1 This is a tree diagram of the communication method for substation monitoring equipment. DETAILED DESCRIPTION

[0028] The following is a detailed description of a substation monitoring equipment communication method, device, equipment and medium provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0029] like Figure 1 As shown, an embodiment of the present invention provides a substation monitoring equipment communication method, comprising the following steps:

[0030] Step 1: Establish a substation monitoring equipment communication system;

[0031] Step 2: When a new device is added to the system, it needs to be identified and registered in the monitoring system;

[0032] Step 3: The monitoring equipment collects various data of the substation according to the preset sampling rate, and a computing unit is installed at the monitoring equipment. The computing unit pre-processes the sampled data, encrypts and compresses the collected data, classifies useful data, useless data and urgent data, intercepts useless information, and transmits urgent data preferentially through the previously established communication network, and transmits the encrypted / compressed useful data to the monitoring center in real time or at a fixed time;

[0033] Step 4: After receiving the data, the cloud server performs decryption and / or decompression processing;

[0034] Step 5: When the current exceeds the threshold or the device temperature is too high, the monitoring system automatically triggers an alarm;

[0035] Step 6: Continuously monitor the operating status of the communication system.

[0036] Adopt IEC 61850 communication protocol and design communication network architecture, including wired (such as optical fiber, Ethernet) and wireless (such as Wi-Fi, Zigbee, LoRa, etc.) connection methods, to ensure that all monitoring devices can be stably and efficiently connected to the system, install and configure necessary switches, routers, gateways and monitoring terminals, etc., to ensure that they can support the selected communication protocol.

[0037] The identified information includes the entry of the device's IP address, MAC address, model, location and other information, and the configuration of monitoring device parameters, such as sampling rate, alarm threshold, communication address, etc., to ensure that the device can operate according to predetermined rules.

[0038] In step 3, according to the preset sampling rate, the monitoring equipment accurately collects various data of the substation, such as current, voltage, temperature, humidity, etc., and the encryption adopts the AES algorithm calculation formula as follows:

[0039] C=E(K,P), where C represents ciphertext, E represents encryption function, K represents key, and P represents plaintext. The plaintext P is encrypted using key K through encryption function E to obtain ciphertext C. The computing unit divides the data into three categories: useful, useless, and urgent according to the importance and urgency of the data, intercepts useless information, gives priority to transmitting urgent data, and sends the pre-processed data to the monitoring center in real time or at a fixed time through the established communication network.

[0040] The cloud server pre-processes the received data (such as filtering, denoising, etc.), and then stores and archives it. It uses data analysis tools or algorithms to monitor, evaluate and predict the operating status of the substation to identify potential problems or failures.

[0041] The calculation unit sets up three data evaluation criteria: data type (D), deviation of data value (V) (comparison with normal value or threshold), and freshness of timestamp (T) (i.e., how new or old the data is); assuming that the weight of data type (D) is wD, the weight of data value deviation (V) is wV, and the weight of timestamp freshness (T) is wT, for each data item i, calculate its priority score Si: Si = wD·Di+wV·Vthreshold|Vi-Vnormal|+wT·TintervalTcurrent-Ti, where: Di is the type weight of data item i (based on a preset weight table), Vi is the actual value of data item i, Vnormal is the normal value or reference value, Vthreshold is the deviation threshold (used to normalize the deviation), Ti is the timestamp of data item i, Tcurrent is the current time, and Tinterval is the evaluation time interval (used to normalize the time difference);Expedited data: data with a priority score Si exceeding the preset expedited threshold Turgent, useful data: data with a priority score Si between the preset useful threshold Tuseful and the expedited threshold Turgent, useless data: data with a priority score Si below the preset useful threshold Tuseful, the monitoring equipment accurately collects various data of the substation according to the preset sampling rate, including current, voltage, temperature, humidity, etc., after the data is initially processed, including format unification, abnormal value detection and correction, etc., to ensure the accuracy and consistency of the data, the calculation unit initializes the weights (wD, wV, wT) of the data type (D), data value deviation (V) and timestamp freshness (T) according to the system configuration or preset rules, determines the normal value or reference value (Vnormal), the deviation threshold (Vthreshold) and the evaluation time interval (Tinterval), and calculates the priority score, for each data item i, according to its type weight Di, actual value Vi, timestamp Ti and other information, according to the public Formula Si=wD·Di+wV·Vthreshold|Vi-Vnormal|+wT·TintervalTcurrent-Ti calculates the priority score Si. Note that the division operation in the formula ensures that the deviation and time difference are normalized to the range of [0,1] or [-1,1] to facilitate weighted summation. According to the comparison between the priority score Si and the preset expedited threshold Turgent and useful threshold Tuseful, the data item i is classified as expedited data, useful data or useless data. Different classification queues or buffers are set up to facilitate subsequent processing, intercept useless data, avoid unnecessary transmission and processing overhead, give priority to the transmission of expedited data, ensure rapid response in emergency situations, and send useful data to the monitoring center in a scheduled or real-time manner for further analysis and storage. The monitoring center analyzes the received data, evaluates the accuracy and efficiency of data classification, and adjusts the parameters such as data type weight, deviation threshold, and evaluation time interval according to the analysis results to optimize the data classification effect. ;

[0042] Through data classification, useless data can be intercepted at the source, reducing redundant overhead in data transmission and processing, giving priority to processing urgent data, and ensuring rapid response and decision support in emergency situations. Data classification enables the system to more effectively utilize communication bandwidth, computing resources, and storage space, avoiding resource waste and performance degradation caused by a large amount of invalid data. The data classification mechanism helps to identify and filter abnormal data, improves the system's anti-interference ability and stability, and through real-time updating and adjustment of classification parameters, the system can adapt to different monitoring environments and changes in demand, giving priority to the transmission and processing of useful and urgent data, providing the monitoring center with more timely and accurate information support, and enhancing the system's decision-making support capabilities in fault diagnosis, early warning and forecasting.

[0043] Monitoring includes equipment status, network status, etc. Once a system failure or equipment abnormality is found, troubleshooting and repair work will be carried out immediately. According to the system operation status, communication parameters, equipment configuration, etc. will be regularly adjusted and optimized to improve system performance and stability.

[0044] A substation monitoring equipment communication device comprises a substation monitoring equipment communication system, monitoring equipment and a cloud processing terminal; the communication system builds a stable and efficient communication network architecture through wired and wireless connection methods, optical fiber is suitable for long distance and high bandwidth requirements, and Ethernet is suitable for short distance connection between devices, which jointly ensure the speed and quality of data transmission; the monitoring equipment accurately collects various data of the substation at a preset sampling rate, such as current, voltage, temperature, humidity, etc., to ensure the accuracy and real-time nature of the data, and a computing unit can be installed at the monitoring equipment to pre-process, encrypt and compress the collected data, thereby reducing the burden of data transmission and improving the security of the data; the cloud processing terminal is used to receive data from the substation monitoring equipment, decrypt, decompress and pre-process, thereby improving the quality and availability of the data.

[0045] Among them, a computer device for implementing a communication method for substation monitoring equipment includes a memory and a processor. The memory is connected to the processor, and the processor is used to execute one or a computer program stored in the memory. When the processor executes one or a computer program, the computer device implements the instructions of the method. The readable medium of the above-mentioned device stores a computer program on it, and the steps of the method are implemented when the computer program is executed by the processor.

[0046] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A communication method for substation monitoring equipment, characterized in that: The following steps are involved: Step 1: Establish a substation monitoring equipment communication system; Step 2: When a new device is added to the system, it needs to be identified and registered in the monitoring system; Step 3: The monitoring equipment collects various data of the substation according to the preset sampling rate, and a computing unit is installed at the monitoring equipment. The computing unit pre-processes the sampled data, encrypts and compresses the collected data, classifies useful data, useless data and urgent data, intercepts useless information, and transmits urgent data preferentially through the previously established communication network, and transmits the encrypted / compressed useful data to the monitoring center in real time or at a fixed time; Step 4: After receiving the data, the cloud server performs decryption and / or decompression processing; Step 5: When the current exceeds the threshold or the device temperature is too high, the monitoring system automatically triggers an alarm; Step 6: Continuously monitor the operating status of the communication system.

2. The substation monitoring equipment communication method according to claim 1, characterized in that: The IEC 61850 communication protocol is used to design the communication network architecture, including wired (such as optical fiber, Ethernet) and wireless (such as Wi-Fi, Zigbee, LoRa, etc.) connection methods, to ensure that all monitoring equipment can be stably and efficiently connected to the system, and to install and configure necessary switches, routers, gateways and monitoring terminals to ensure that they can support the selected communication protocol.

3. The substation monitoring equipment communication method according to claim 1, characterized in that: The identified information includes the entry of the device's IP address, MAC address, model, location and other information, and the configuration of monitoring device parameters, such as sampling rate, alarm threshold, communication address, etc., to ensure that the device can operate according to predetermined rules.

4. The communication method for substation monitoring equipment according to claim 1, characterized in that: In step 3, according to the preset sampling rate, the monitoring equipment accurately collects various data of the substation, such as current, voltage, temperature, humidity, etc. The encryption adopts the AES algorithm calculation formula as follows: C = E(K, P), where C represents ciphertext, E represents encryption function, K represents key, and P represents plaintext. The plaintext P is encrypted by encryption function E using key K to obtain ciphertext C. The computing unit divides the data into three categories: useful, useless, and urgent according to the importance and urgency of the data, intercepts useless information, gives priority to transmitting urgent data, and sends the pre-processed data to the monitoring center in real time or at a fixed time through the established communication network.

5. The communication method for substation monitoring equipment according to claim 1, characterized in that: The cloud server pre-processes the received data (such as filtering, denoising, etc.), and then stores and archives it. It uses data analysis tools or algorithms to monitor, evaluate and predict the operating status of the substation to identify potential problems or failures.

6. The communication method for substation monitoring equipment according to claim 4, characterized in that: The calculation unit sets up three data evaluation criteria: data type (D), deviation of data value (V) (comparison with normal value or threshold), and freshness of timestamp (T) (i.e., how new or old the data is); assuming that the weight of data type (D) is wD, the weight of data value deviation (V) is wV, and the weight of timestamp freshness (T) is wT, for each data item i, calculate its priority score Si: Si=wD⋅Di+wV⋅Vthreshold|Vi−Vnormal|+wT⋅TintervalTcurrent−Ti; Where: Di is the type weight of data item i (based on a preset weight table), Vi is the actual value of data item i, Vnormal is the normal value or reference value, Vthreshold is the deviation threshold (used to normalize the deviation), Ti is the timestamp of data item i, Tcurrent is the current time, and Tinterval is the evaluation time interval (used to normalize the time difference); Expedited data: data whose priority score Si exceeds the preset expedited threshold Turgent; Useful data: data with a priority score Si between the preset useful threshold Tuseful and the expedited threshold Turgent; Useless data: data whose priority score Si is lower than the preset usefulness threshold Tuseful.

7. The substation monitoring equipment communication method according to claim 1, characterized in that: The monitoring includes equipment status, network status, etc. Once a system failure or equipment abnormality is found, troubleshooting and repair work will be carried out immediately. According to the system operation status, communication parameters, equipment configuration, etc. will be regularly adjusted and optimized to improve system performance and stability.

8. A substation monitoring equipment communication device, characterized in that: Including substation monitoring equipment communication system, monitoring equipment and cloud processing terminal; The communication system builds a stable and efficient communication network architecture through wired and wireless connection methods. Optical fiber is suitable for long distances and high bandwidth requirements, while Ethernet is suitable for short-distance connections between devices, which together ensure the speed and quality of data transmission; The monitoring device accurately collects various data of the substation, such as current, voltage, temperature, humidity, etc., at a preset sampling rate to ensure the accuracy and real-time nature of the data. A computing unit can be installed at the monitoring device to pre-process, encrypt and compress the collected data, thereby reducing the burden of data transmission and improving data security. The cloud processing terminal is used to receive data from the substation monitoring equipment, perform decryption, decompression and preprocessing, thereby improving the quality and availability of the data.

9. A computer device, characterized in that: The invention comprises a memory and a processor, wherein the memory is connected to the processor, and the processor is used to execute one or a computer program stored in the memory, and when the processor executes the one or the computer program, the computer device implements the instructions of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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