Method for capturing position information of electromagnetic interference and tracing system

Abstract

The present invention discloses a method for capturing the position information of electromagnetic interference, comprising the following steps: S1, first, install a satellite locator on large-scale mechanized equipment working around a substation; S2, install an electromagnetic interference position correction base station in the working area around the substation. The electromagnetic interference position correction base station includes a satellite locator, a memory pre-storing the accurate position of the correction base station, a positioning correction module, and a substation electromagnetic signal intensity detection module. The positioning correction module is used to calculate the deviation of the satellite locator under electromagnetic interference and perform correction. The present invention is reasonably designed and ingeniously conceived. By obtaining a positioning correction model based on a machine learning model, the accurate position of large-scale mechanized equipment can be automatically and quickly traced back, thereby avoiding the interference of satellite signals of large-scale mechanized equipment by electromagnetic waves, making the positioning more accurate and the safety higher when large-scale mechanized equipment operates in the substation.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-electromagnetic interference, and particularly to a method for capturing position information of electromagnetic interference and a tracing system. Background Art

[0002] In the renovation and expansion project of a substation, the live equipment is in operation, and the operation process has a relatively high risk. When using large mechanized equipment such as boom trucks and truck cranes for cable hoisting and foundation excavation operations, in order to prevent electric shock injuries caused by the construction personnel and production tools not reaching a safe distance, a clear isolation zone needs to be set between the construction area and the power grid operation area. Traditional isolation zones generally use safety fences, which cannot accurately protect and monitor the space above the fences in real time. There is a risk that the safety distance is insufficient during high-altitude operation of mechanical equipment. At the same time, due to the differences in the safety awareness of construction personnel, it is impossible to accurately identify various dangerous points existing in the operation process, posing a great safety risk to power equipment or construction personnel.

[0003] It is necessary to install high-precision positioning sensors based on Beidou positioning technology on large mechanized equipment such as boom trucks and truck cranes to achieve real-time monitoring of the high-altitude operation trajectory of construction machinery in the substation. However, in the strong electromagnetic environment of the substation in the positioning sensor, the signal of the positioning sensor is easily interfered by electromagnetic waves during propagation, resulting in inaccurate positioning. Therefore, the present invention proposes a method for capturing position information of electromagnetic interference and a tracing system. Summary of the Invention

[0004] The present invention provides a method for capturing position information of electromagnetic interference and a tracing system to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for capturing position information of electromagnetic interference includes the following steps:

[0007] S1. First, install a satellite locator on large mechanized equipment working around the substation;

[0008] S2. Install an electromagnetic interference position correction base station in the working area around the substation. The electromagnetic interference position correction base station includes a satellite locator, a memory pre-storing the accurate position of the correction base station, a positioning correction module, and a substation electromagnetic signal intensity detection module. The positioning correction module is used to calculate the deviation of the satellite locator under electromagnetic interference and perform correction;

[0009] S3. According to the deviation of the satellite locator under electromagnetic interference calculated by the positioning correction module, correct the satellite locator installed on the large mechanized equipment to obtain the accurate position information of the large mechanized equipment.

[0010] As a further improvement of this technical solution: all satellite locators are satellite locators based on Beidou satellites.

[0011] As a further improvement of this technical solution: the positioning correction module is used to calculate and correct the deviation of the satellite locator under electromagnetic interference. Specifically:

[0012] A positioning correction model is established, and then the accurate position information of the correction base station, the position information of the satellite locator affected by electromagnetic interference in the correction base station, and the electromagnetic signal intensity information of the substation are input into the positioning correction model to obtain the position deviation information of the satellite locator affected by electromagnetic interference. Finally, the accurate position information of the satellite locator is corrected according to the position deviation information.

[0013] As a further improvement of this technical solution: the specific steps for establishing the positioning correction model are as follows:

[0014] In the first step, a dataset of a large number of electromagnetic interference position correction base station information is obtained, and each sample in the dataset includes three indicators: the accurate position information of the correction base station, the position information of the satellite locator affected by electromagnetic interference in the correction base station, and the electromagnetic signal intensity information of the substation;

[0015] In the second step, the dataset is used to train a machine learning model. The machine learning model uses two indicators, the position information of the satellite locator affected by electromagnetic interference in the correction base station and the electromagnetic signal intensity information of the substation after standardization, as inputs, and the accurate position information of the correction base station as the output, and a positioning correction model is obtained through supervised learning.

[0016] As a further improvement of this technical solution: in the first step, the dataset is divided into a training set and a validation set. Multiple machine learning models are trained simultaneously using the training set, and the performance accuracy of different machine learning models is evaluated using the validation set. The machine learning model with the best performance is selected to construct the positioning correction model.

[0017] As a further improvement of this technical solution: in S2, the selected machine learning model is at least one of logistic regression, linear discriminant analysis, K-nearest neighbor, naive Bayes, support vector machine, random forest, and neural network.

[0018] As a further improvement of this technical solution: the selected machine learning model is a random forest model.

[0019] As a further improvement of this technical solution: in S3, according to the deviation of the satellite locator calculated by the positioning correction module under electromagnetic interference, the satellite locator installed on the large-scale mechanical equipment is corrected to obtain the accurate position information of the large-scale mechanical equipment. Specifically:

[0020] Standardize the two indicators of the position information received by the satellite locator on the large-scale mechanical equipment that is subject to electromagnetic interference and the electromagnetic signal intensity information of the substation, and then input them into the positioning correction model to obtain the accurate information of the satellite locator on the large-scale mechanical equipment.

[0021] As a further improvement of this technical solution: the substation electromagnetic signal intensity detection module is an electromagnetic field intensity tester.

[0022] The present invention also provides a system for tracing the position information of electromagnetic interference. Based on the method for capturing the position information of electromagnetic interference described in any one of the above, it includes:

[0023] Substation electromagnetic signal intensity detection module: used to detect the electromagnetic signal intensity information in the substation;

[0024] Large-scale mechanical equipment position information detection module: used to detect the position information of the large-scale mechanical equipment that is subject to electromagnetic interference;

[0025] Large-scale mechanical equipment accurate position tracing module; used to calculate the accurate position of the large-scale mechanical equipment based on the position information of the large-scale mechanical equipment that is subject to electromagnetic interference and the electromagnetic signal intensity information of the substation.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] The device is reasonably designed and ingeniously conceived. By obtaining the positioning correction model based on the machine learning model, it can automatically and quickly trace the accurate position of the large-scale mechanical equipment, thereby avoiding the interference of the satellite signal of the large-scale mechanical equipment by electromagnetic waves, making the positioning more accurate and the safety higher when the large-scale mechanical equipment operates in the substation.

[0028] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and implement it according to the content of the specification, the following takes the preferred embodiments of the present invention and combines with the drawings to describe in detail as follows. The specific implementation manners of the present invention are given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0030] Figure 1 is a schematic flow chart of a method for capturing the position information of electromagnetic interference proposed by the present invention;

[0031] Figure 2 is a schematic structural diagram of a method for capturing the position information of electromagnetic interference proposed by the present invention;

[0032] Figure 3 Schematic diagram of a system for tracing the location information of electromagnetic interference proposed by the present invention;

[0033] Figure 4 Schematic diagram of the steps of a method for capturing the location information of electromagnetic interference proposed by the present invention. Specific embodiments

[0034] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention. The present invention will be described more specifically by way of example in the following paragraphs. According to the following description and claims, the advantages and features of the present invention will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0035] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0037] Please refer to Figures 1 to 3 , in an embodiment of the present invention, a method for capturing the location information of electromagnetic interference includes the following steps:

[0038] S1. First, install a Beidou satellite locator on large mechanized equipment working around the substation;

[0039] S2. Install an electromagnetic interference location correction base station in the working area around the substation. The electromagnetic interference location correction base station includes a Beidou satellite locator, a memory pre-storing the accurate location of the correction base station, a location correction module, and a substation electromagnetic signal intensity detection module (electromagnetic field strength tester). The location correction module is used to calculate the deviation of the Beidou satellite locator under electromagnetic interference and perform correction. Specifically:

[0040] Establish a positioning correction model, and then input the accurate position information of the correction base station, the position information of the Beidou satellite locator affected by electromagnetic interference in the correction base station, and the electromagnetic signal intensity information of the substation into the positioning correction model to obtain the position deviation information of the Beidou satellite locator affected by electromagnetic interference. Finally, correct the accurate position information of the Beidou satellite locator according to the position deviation information;

[0041] It should be noted that the specific steps for establishing the positioning correction model are as follows:

[0042] In the first step, obtain a large dataset of electromagnetic interference position correction base station information, and each sample in the dataset includes three indicators: the accurate position information of the correction base station, the position information of the Beidou satellite locator affected by electromagnetic interference in the correction base station, and the electromagnetic signal intensity information of the substation;

[0043] In the second step, use the dataset to train a machine learning model. The machine learning model takes two indicators, namely the position information of the Beidou satellite locator affected by electromagnetic interference in the correction base station and the electromagnetic signal intensity information of the substation after standardization, as inputs, and the accurate position information of the correction base station as the output. Through supervised learning, a positioning correction model is obtained. It should be noted that the dataset is divided into a training set and a validation set. Use the training set to train multiple machine learning models (at least one of logistic regression, linear discriminant analysis, K-nearest neighbor, naive Bayes, support vector machine, random forest, neural network) simultaneously, and use the validation set to evaluate the performance accuracy of different machine learning models, and select the machine learning model with the best performance to construct the positioning correction model;

[0044] It should be noted that the machine learning model selected in the present invention is a random forest model.

[0045] S3, standardize the two indicators of the position information affected by electromagnetic interference received by the Beidou satellite locator on the large-scale mechanical equipment and the electromagnetic signal intensity information of the substation, and then input them into the positioning correction model to obtain the accurate information of the Beidou satellite locator on the large-scale mechanical equipment.

[0046] The present invention also provides a system for tracing the position information of electromagnetic interference. Based on any one of the above-mentioned methods for capturing the position information of electromagnetic interference, it includes:

[0047] Substation electromagnetic signal intensity detection module: used to detect the electromagnetic signal intensity information in the substation;

[0048] Large-scale mechanical equipment position information detection module: used to detect the position information of the large-scale mechanical equipment according to the position information affected by electromagnetic interference;

[0049] Accurate Position Traceability Module for Large-scale Mechanical Equipment; used to calculate the accurate position of large-scale mechanical equipment based on the position information of large-scale mechanical equipment affected by electromagnetic interference and the electromagnetic signal intensity information of the substation.

[0050] The working principle of the present invention is:

[0051] By obtaining a positioning correction model based on a machine learning model, and then sending the position information of large-scale mechanical equipment affected by electromagnetic interference and the electromagnetic signal intensity information of the substation into the positioning correction model, the positioning correction model can automatically trace and obtain the accurate position of the large-scale mechanical equipment.

[0052] As mentioned above, it is only the preferred embodiment of the present invention, and there is no limitation in any form to the present invention; any ordinary technician in the industry can smoothly implement the present invention according to the illustrations in the specification and the above description; however, any equivalent changes made by those skilled in the art within the scope of the technical solution of the present invention by using the technical content disclosed above, such as slight modifications, decorations, and evolutions, are equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A method for capturing location information of electromagnetic interference, characterized in that: The following steps are involved: S1, first install satellite locators on large mechanized equipment working around the substation; S2: Install an electromagnetic interference position correction base station in the work area around the substation. The electromagnetic interference position correction base station includes a satellite positioner, a memory pre-stored with the accurate position of the correction base station, a positioning correction module, and a substation electromagnetic signal strength detection module. The positioning correction module is used to calculate the deviation of the satellite positioner under electromagnetic interference and perform correction; The positioning correction module is used to calculate the deviation of the satellite positioner under electromagnetic interference and perform correction, specifically: Establish a positioning correction model, then input the accurate position information of the correction base station, the position information of the satellite locator affected by electromagnetic interference in the correction base station, and the electromagnetic signal strength information of the substation into the positioning correction model to obtain the position deviation information of the satellite locator affected by electromagnetic interference. Finally, correct the accurate position information of the satellite locator based on the position deviation information; The specific steps for establishing the positioning correction model are as follows: The first step is to obtain a large dataset of electromagnetic interference location correction base station information. Each sample in the dataset includes three indicators: the accurate location information of the correction base station, the location information of the satellite locator affected by electromagnetic interference in the correction base station, and the electromagnetic signal strength information of the substation. The second step is to use the dataset to train a machine learning model. The machine learning model uses the standardized satellite locator location information of the base station that has been corrected for electromagnetic interference and the electromagnetic signal strength information of the substation as input, and uses the accurate location information of the corrected base station as output. A positioning correction model is obtained through supervised learning. S3, calculates the deviation of the satellite positioner under electromagnetic interference according to the positioning correction module, corrects the satellite positioner installed on the large-scale mechanized equipment, and obtains the accurate position information of the large-scale mechanized equipment, specifically: The two indicators of the electromagnetic interference-affected location information and the substation electromagnetic signal strength information received by the satellite locator on the large-scale mechanized equipment are standardized and then input into the positioning correction model to obtain the accurate information of the satellite locator on the large-scale mechanized equipment.

2. The method for capturing location information of electromagnetic interference according to claim 1, characterized in that: The satellite locators are all based on Beidou satellites.

3. The method for capturing location information of electromagnetic interference according to claim 2, characterized in that: In the first step, the data set is divided into a training set and a validation set. The training set is used to train multiple machine learning models simultaneously, and the validation set is used to evaluate the performance accuracy of different machine learning models. The machine learning model with the best performance is selected to build a positioning correction model.

4. The method for capturing location information of electromagnetic interference according to claim 3, characterized in that: In S2, the selected machine learning model is at least one of logistic regression, linear discriminant analysis, K-nearest neighbor, naive Bayes, support vector machine, random forest, and neural network.

5. The method for capturing location information of electromagnetic interference according to claim 4, characterized in that: The machine learning model selected is the random forest model.

6. The method for capturing location information of electromagnetic interference according to claim 5, characterized in that: The substation electromagnetic signal strength detection module is an electromagnetic field strength tester.

7. A location information tracing system for electromagnetic interference, based on the location information capturing method for electromagnetic interference according to any one of claims 1 to 6, characterized in that: include: Substation electromagnetic signal strength detection module: used to detect electromagnetic signal strength information within the substation; Large-scale mechanized equipment location information detection module: used to detect the location information of large-scale mechanized equipment that is subject to electromagnetic interference; Large-scale mechanized equipment accurate location tracing module; used to calculate the accurate location of large-scale mechanized equipment based on the location information of large-scale mechanized equipment affected by electromagnetic interference and the electromagnetic signal strength information of the substation.

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