A method, system and medium for intelligent monitoring of transmission lines

Abstract

The invention discloses an intelligent monitoring method, system and medium for a power transmission line, relates to the field of power transmission line monitoring, and solves the problem that the icing condition of a power transmission line cannot be accurately and efficiently monitored. The method comprises: collecting insulator string suspension data of an insulator string corresponding to the transmission line and line status data of the transmission line; calculating the environmental impact tension corresponding to the insulator string according to the line status data of the transmission line; calculating the insulator string inclination angle of the corresponding insulator string according to the line status data corresponding to the transmission line and the insulator string suspension data; analyzing the environmental impact tension of the insulator string and the insulator string inclination angle to obtain the line icing level corresponding to the transmission line; an alarm terminal receives the line icing level corresponding to the line icing level, and generates different alarms to prompt a user of the icing degree of the transmission line. The invention realizes accurate and efficient monitoring of the icing condition corresponding to the transmission line.

Description

Technical Field

[0001] The present invention relates to the field of line monitoring, and in particular to a method, system and medium for intelligent monitoring of power transmission lines. Background Art

[0002] As the pace of urban construction continues to accelerate, the scale of the power grid continues to expand, the length of transmission lines continues to grow, and the hidden dangers of external damage also increase, and the difficulty of governance continues to increase. In order to ensure the safe and stable operation of the power grid, our company continues to deepen the application of intelligent technology in the operation and maintenance of transmission lines, and promote the development of intelligent management of transmission lines; traditional manual inspection methods cannot monitor the channel environment of multiple transmission lines in real time around the clock, and hidden dangers such as external damage, wildfires, and ice cover cannot sometimes be discovered in a timely and accurate manner;

[0003] However, at present, when monitoring the icing condition of transmission lines, it is usually measured directly or through image analysis, but the icing condition of the corresponding transmission line is not calculated by combining the tension of the insulator string, the inclination angle and environmental factors, resulting in more monitoring resources consumption and inaccurate monitoring results.

[0004] To this end, the present invention proposes a method, system and medium for intelligent monitoring of transmission lines. Summary of the invention

[0005] The purpose of the present invention is to propose a method, system and medium for intelligent monitoring of power transmission lines to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] In a first aspect, a method for intelligent monitoring of a power transmission line comprises:

[0008] Step S1, collecting insulator string suspension data of the insulator string corresponding to the transmission line and line status data of the transmission line;

[0009] Step S2, calculating the environmental impact tension corresponding to the insulator string according to the line status data of the transmission line;

[0010] Step S3, calculating the insulator string inclination angle of the corresponding insulator string according to the line state data corresponding to the transmission line and the insulator string suspension data;

[0011] Step S4, analyzing the environmental impact tension of the insulator string and the inclination angle of the insulator string to obtain the line icing level corresponding to the transmission line;

[0012] Step S5, the alarm terminal receives the line icing level corresponding to the line icing level and generates different alarms to remind the user of the degree of icing of the power transmission line.

[0013] Furthermore, the line status data includes the line cross-sectional area, line diameter, number of line splits, deadweight load ratio of the transmission line and unit weight corresponding to the transmission line;

[0014] The insulator string suspension data of the insulator string includes the type of transmission tower corresponding to the insulator string, the weight of the insulator string, the hanging condition of the insulator string weight and the weight of the corresponding weight.

[0015] Furthermore, the step S2 includes the following sub-steps:

[0016] Step S21, measuring the insulator string tension corresponding to the insulator string at the current moment by means of a tension measuring device;

[0017] Step S22, obtaining line status data corresponding to the transmission line, obtaining the line cross-sectional area HJM corresponding to the transmission line, the line split number FLS and the deadweight load ratio ZZB of the transmission line;

[0018] Step S23, calculate the predicted vertical load YCZ of the corresponding transmission line without external interference by using a formula, in Newtons, and the formula is as follows:

[0019] YCZ=FLS×HJM×ZZB×CDJ×g; where CDJ is the vertical span, which refers to the vertical distance between two transmission towers, and g is the gravitational constant 1;

[0020] Step S24, calculate the predicted horizontal load YSZ of the corresponding transmission line without external interference by using a formula, in Newtons, and the formula is as follows:

[0021] YSZ=FLS×HJM×FYB×SDJ×g; SDJ is the horizontal span, which is the horizontal distance between the two line towers connected by the transmission line; FYB is the wind pressure load of the transmission line, which means the wind pressure load acting on the unit length and unit cross-sectional area of ​​the transmission line, and the unit is N / m*mm 2 ;

[0022] Step S25, adding the predicted vertical load and the predicted horizontal load of the transmission line by force synthesis operation to obtain the predicted insulator string tension corresponding to the insulator string;

[0023] Step S26, obtaining the environmental impact tension by subtracting the predicted insulator string tension from the insulator string tension.

[0024] Furthermore, the step S3 includes the following sub-steps:

[0025] Step S3 includes the following sub-steps:

[0026] Step S31, acquiring line status data corresponding to the transmission line, obtaining the line cross-sectional area SJM, line diameter SZJ, line split number FLS and unit weight SDZ corresponding to the transmission line;

[0027] Step S32, collect the average wind speed PFS corresponding to the transmission line, and calculate the wind load SFZ per unit length of the transmission line by a formula, in Newtons, and the specific calculation formula is as follows:

[0028] Where FJX is the correction coefficient of the transmission line when the wind speed is uneven;

[0029] Step S33, calculate the gravity load SZZ per unit length corresponding to the transmission line by a formula, in Newtons, and the specific calculation formula is as follows:

[0030] SZZ=g×SDZ / SJM.

[0031] Furthermore, the step S3 also includes the following sub-steps:

[0032] Step S34, obtaining the weight JZL of the corresponding insulator string in the transmission line, and calculating the gravity load JZZ and wind load JFZ of the insulator string on the transmission line by the formula, in Newton, the calculation formula is as follows:

[0033] JZZ=JZL×g;

[0034] JFZ=g×JMJ×PFS 2 / 16; where JMJ is the total area of ​​the insulator string under the influence of wind speed, and its specific value is related to the specifications of the transmission line;

[0035] Step S35, obtaining the insulator string suspension data of the corresponding insulator string in the transmission line, and obtaining the type of the transmission tower corresponding to the insulator string and the insulator string weight suspension condition;

[0036] Step S36, calculating the insulator string inclination angle corresponding to the insulator string.

[0037] Furthermore, the calculation process of step S36 is specifically as follows:

[0038] Step S361: If the transmission tower corresponding to the insulator string is a vertical transmission tower and no weight is hung on the insulator string, the insulator string inclination angle φ corresponding to the insulator string is calculated by the following formula. The specific formula is as follows:

[0039]

[0040] Where, arctan is the inverse tangent function, SDJ is the horizontal span, and CDJ is the vertical span;

[0041] Step S362: If the transmission tower corresponding to the insulator string is a tension transmission tower or a weight is hung on the insulator string, the insulator string inclination angle φ corresponding to the insulator string is calculated by the following formula. The specific formula is as follows:

[0042]

[0043] In the formula, α is the line rotation angle corresponding to the transmission line. The line rotation angle refers to the angle between the deflected direction and the original direction when the transmission line deviates from one direction to another. XGZ is the gravity load of the hanging weight, which is obtained by multiplying the weight of the hanging weight by g.

[0044] Furthermore, the step S4 includes the following sub-steps:

[0045] Step S41, obtaining the environmental impact tension and insulator string inclination angle of the insulator string corresponding to the transmission line;

[0046] Step S42, comparing the environmental impact tension of the insulator string with the environmental impact tension interval; comparing the insulator string inclination of the insulator string with the initial insulator string inclination interval; when the environmental impact tension corresponding to the insulator string is within the environmental impact tension interval and the insulator string inclination corresponding to the insulator string is within the insulator string inclination interval, it is determined that there is no ice coating on the transmission line corresponding to the insulator string;

[0047] Step S43, when any one of the insulator string tension or the insulator string inclination angle corresponding to the insulator string is outside the corresponding interval, it is determined that the transmission line corresponding to the insulator string has ice coating;

[0048] Step S44, analyzing the degree of icing of the transmission line to determine whether the icing level of the corresponding transmission line is level one, level two, or level three;

[0049] Step S45: sending the line icing level corresponding to the transmission line to the alarm terminal.

[0050] Furthermore, the analysis process of step S44 is specifically as follows:

[0051] Step S441, obtaining the environmental impact tension of the insulator string corresponding to the transmission line; obtaining the insulator string inclination angle corresponding to the insulator string;

[0052] Step S442, decomposing the environmental influence tension of the insulator string according to the inclination angle of the insulator string to obtain the vertical tension and the horizontal tension corresponding to the environmental influence tension;

[0053] Step S443, comparing the vertical tension with the corresponding vertical tension threshold;

[0054] Step S444: if the vertical tension is less than or equal to the first vertical tension threshold, the line icing level of the transmission line is recorded as level one icing;

[0055] Step S445: if the vertical tension is greater than the first vertical tension threshold and the vertical tension is less than or equal to the second vertical tension threshold, the line icing level of the transmission line is recorded as level 2 icing;

[0056] Step S446: if the vertical tension is greater than the second vertical tension threshold, the line icing level of the transmission line is recorded as level three icing;

[0057] Among them, the second vertical tension threshold is greater than the first vertical tension threshold; the ice coverage degree of the third level ice coverage is higher than the ice coverage degree of the second level ice coverage, and the ice coverage degree of the second level ice coverage is higher than the ice coverage degree of the first level ice coverage.

[0058] In a second aspect, a transmission line intelligent monitoring system includes:

[0059] A data acquisition module, used for collecting the insulator string suspension data of the insulator string corresponding to the transmission line and the line status data of the transmission line, sending the line status data of the transmission line to the first analysis module, and sending the insulator string suspension data of the insulator string and the line status data of the transmission line to the second analysis module;

[0060] The first analysis module is used to analyze the stress condition of the transmission line, obtain the environmental impact tension corresponding to the insulator string and send it to the icing judgment module;

[0061] The second analysis module is used to perform a comprehensive analysis on the transmission line, obtain the insulator string inclination angle of the insulator string in the transmission line and send it to the ice determination module;

[0062] The icing identification module is used to analyze the environmental impact tension of the insulator string and the inclination angle of the insulator string, obtain the line icing level corresponding to the transmission line and send it to the alarm terminal;

[0063] The alarm terminal is used to receive the line icing level corresponding to the line icing level and generate different alarms to inform the user of the degree of icing on the transmission line.

[0064] A computer-readable storage medium stores a computer program, which implements the above method when executed by a processor.

[0065] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0066] 1. The present invention first collects the insulator string suspension data of the insulator string corresponding to the transmission line and the line status data of the transmission line; then calculates the environmental impact tension corresponding to the insulator string according to the line status data of the transmission line; finally calculates the insulator string inclination angle of the corresponding insulator string according to the line status data corresponding to the transmission line and the insulator string suspension data; the present invention realizes the calculation of the environmental impact tension and the insulator string inclination angle of the transmission line;

[0067] 2. The present invention analyzes the environmental impact tension of the insulator string and the inclination angle of the insulator string to obtain the line icing level corresponding to the transmission line; then uses the alarm terminal to receive the line icing level corresponding to the line icing level, and generates different alarms to prompt users of the degree of icing on the transmission line; the present invention realizes accurate and effective monitoring of the icing condition of the transmission line. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0069] Figure 1 is a flowchart of the method of the present invention;

[0070] Figure 2 is a schematic diagram of a tension transmission tower in the present invention;

[0071] Figure 3 It is a schematic diagram of the inclination angle of the insulator string corresponding to the tension transmission tower in the present invention;

[0072] Figure 4 is a schematic diagram of a vertical transmission tower in the present invention;

[0073] Figure 5 It is a schematic diagram of the inclination angle of the insulator string corresponding to the vertical transmission tower in the present invention;

[0074] Figure 6 It is a schematic diagram of the line turning angles between different transmission towers in the present invention;

[0075] Figure 7 It is a schematic diagram of the decomposition of the tension of the insulator string in the present invention;

[0076] Figure 8 It is a schematic diagram of the structure of the computer device in the present invention. DETAILED DESCRIPTION

[0077] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0078] Embodiment 1:

[0079] See also Figure 1-Figure 7 As shown, the technical solution provided by the present invention is: a method for intelligent monitoring of power transmission lines, the method is specifically as follows:

[0080] Step S1, collecting insulator string suspension data of the insulator string corresponding to the transmission line and line status data of the transmission line;

[0081] The line status data includes the line cross-sectional area, line diameter, line split number, deadweight load ratio of the transmission line and the unit weight corresponding to the transmission line; the insulator string suspension data of the insulator string includes the type of the transmission tower corresponding to the insulator string, the weight of the insulator string, the suspension condition of the insulator string weight and the weight of the corresponding weight;

[0082] The self-weight specific load is the specific load generated by the mass per unit length of the overhead line. It reflects the load on the line structure caused by the overhead line's own weight. The unit is N / m*mm 2 ; Unit weight refers to the weight of the transmission line per unit length, and the unit length in the present invention is 1 meter; The insulator string weight suspension conditions include two types: hanging weights or not hanging weights.

[0083] Step S2, calculating the environmental impact tension corresponding to the insulator string according to the line status data of the transmission line;

[0084] The step S2 includes the following sub-steps:

[0085] Step S21, measuring the insulator string tension corresponding to the insulator string at the current moment by means of a tension measuring device;

[0086] Step S22, obtaining line status data corresponding to the transmission line, obtaining the line cross-sectional area HJM corresponding to the transmission line, the line split number FLS and the deadweight load ratio ZZB of the transmission line;

[0087] Step S23, calculate the predicted vertical load YCZ of the corresponding transmission line without external interference by using a formula, in Newtons, and the formula is as follows:

[0088] YCZ=FLS×HJM×ZZB×CDJ×g; where CDJ is the vertical span, which refers to the vertical distance between two transmission towers, and g is the gravitational constant, which is 9.81 in this embodiment;

[0089] Step S24, calculate the predicted horizontal load YSZ of the corresponding transmission line without external interference by using a formula, in Newtons, and the formula is as follows:

[0090] YSZ=FLS×HJM×FYB×SDJ×g; SDJ is the horizontal span, which is the horizontal distance between the two line towers connected by the transmission line; FYB is the wind pressure load of the transmission line, which means the wind pressure load acting on the unit length and unit cross-sectional area of ​​the transmission line, and the unit is N / m*mm 2 ;

[0091] Step S25, adding the predicted vertical load and the predicted horizontal load of the transmission line to obtain the predicted insulator string tension corresponding to the insulator string through force synthesis operation; wherein the force synthesis operation follows the vector synthesis method, that is, a parallelogram is constructed with the predicted vertical load and the predicted horizontal load as adjacent sides, and the diagonal of the parallelogram represents the synthesized predicted insulator string tension;

[0092] Step S26, obtaining the environmental impact tension by subtracting the predicted insulator string tension from the insulator string tension.

[0093] Step S3, calculating the insulator string inclination angle of the corresponding insulator string according to the line state data corresponding to the transmission line and the insulator string suspension data;

[0094] In this embodiment, step S3 includes the following sub-steps:

[0095] Step S31, acquiring line status data corresponding to the transmission line, obtaining the line cross-sectional area SJM, line diameter SZJ, line split number FLS and unit weight SDZ corresponding to the transmission line;

[0096] Step S32, collect the average wind speed PFS corresponding to the transmission line, and calculate the wind load SFZ per unit length of the transmission line by a formula, in Newtons, and the specific calculation formula is as follows:

[0097] Where FJX is the correction coefficient of the transmission line when the wind speed is uneven;

[0098] Step S33, calculate the gravity load SZZ per unit length corresponding to the transmission line by a formula, in Newtons, and the specific calculation formula is as follows:

[0099] SZZ = g × SDZ / SJM;

[0100] Step S34, obtaining the weight JZL of the corresponding insulator string in the transmission line, and calculating the gravity load JZZ and wind load JFZ of the insulator string on the transmission line by the formula, in Newton, the calculation formula is as follows:

[0101] JZZ=JZL×g;

[0102] JFZ=g×JMJ×PFS 2 / 16; where JMJ is the total area of ​​the insulator string under the influence of wind speed, and the specific value is related to the specifications of the transmission line; for example, the value of JMJ of the insulator string corresponding to the 110kV transmission line is 0.2;

[0103] Step S35, obtaining the insulator string suspension data of the corresponding insulator string in the transmission line, and obtaining the type of the transmission tower corresponding to the insulator string and the insulator string weight suspension condition;

[0104] Step S36, calculating the insulator string inclination angle corresponding to the insulator string;

[0105] The calculation process of step S36 is specifically as follows:

[0106] Step S361: If the transmission tower corresponding to the insulator string is a vertical transmission tower and no weight is hung on the insulator string, the insulator string inclination angle φ corresponding to the insulator string is calculated by the following formula. The specific formula is as follows:

[0107] Where, arctan is the inverse tangent function, SDJ is the horizontal span, and CDJ is the vertical span;

[0108] Step S362: If the transmission tower corresponding to the insulator string is a tension transmission tower or a weight is hung on the insulator string, the insulator string inclination angle φ corresponding to the insulator string is calculated by the following formula. The specific formula is as follows:

[0109] Where α is the line angle corresponding to the transmission line, such as Figure 6 As shown in the figure, the line angle refers to the angle between the direction after deflection and the original direction when the transmission line deviates from one direction to another; XGZ is the gravity load of the hanging weight, which is obtained by multiplying the weight of the hanging weight by g;

[0110] Among them, Figures 2 to 3 As shown in , the insulator string of the tension transmission tower is suspended horizontally, and the inclination angle of the insulator string corresponding to the tension transmission tower is the angle between the center line of the insulator string and the vertical plane; Figures 4 to 5 As shown, the insulator string of the vertical transmission tower is vertically suspended, and the insulator string inclination angle corresponding to the vertical transmission tower is the angle between the center line of the insulator string and the horizontal plane.

[0111] Step S4, analyzing the environmental impact tension of the insulator string and the inclination angle of the insulator string to obtain the line icing level corresponding to the transmission line;

[0112] In this embodiment, step S4 includes the following sub-steps:

[0113] Step S41, obtaining the environmental impact tension and insulator string inclination angle of the insulator string corresponding to the transmission line;

[0114] Step S42, comparing the environmental impact tension of the insulator string with the environmental impact tension interval; comparing the insulator string inclination of the insulator string with the initial insulator string inclination interval; when the environmental impact tension corresponding to the insulator string is within the environmental impact tension interval and the insulator string inclination corresponding to the insulator string is within the insulator string inclination interval, it is determined that there is no ice coating on the transmission line corresponding to the insulator string;

[0115] Step S43, when any one of the insulator string tension or the insulator string inclination angle corresponding to the insulator string is outside the corresponding interval, it is determined that the transmission line corresponding to the insulator string has ice coating;

[0116] The initial insulator string inclination angle ranges are all data obtained by measuring the corresponding transmission line in windless and normal temperature weather; in this embodiment, the normal temperature refers to 20 degrees Celsius;

[0117] Step S44, analyzing the degree of icing of the transmission line to determine whether the icing level of the corresponding transmission line is level one, level two, or level three;

[0118] The analysis process of step S44 is specifically as follows:

[0119] Step S441, obtaining the environmental impact tension of the insulator string corresponding to the transmission line; obtaining the insulator string inclination angle corresponding to the insulator string;

[0120] Step S442, as Figure 7 As shown, the environmental influence tension of the insulator string is decomposed according to the inclination angle of the insulator string to obtain the vertical tension and horizontal tension corresponding to the environmental influence tension;

[0121] Among them, horizontal tension is the tension caused by the transmission line being affected by wind; vertical tension is the tension caused by objects hanging on the transmission line;

[0122] Step S443, comparing the vertical tension with the corresponding vertical tension threshold;

[0123] Step S444: if the vertical tension is less than or equal to the first vertical tension threshold, the line icing level of the transmission line is recorded as level one icing, and it is determined that there is no icing phenomenon on the transmission line or the icing will not affect the transmission line;

[0124] Step S445: if the vertical tension is greater than the first vertical tension threshold and the vertical tension is less than or equal to the second vertical tension threshold, the line icing level of the transmission line is recorded as level 2 icing, and it is determined that there is icing on the transmission line, which will affect the transmission line;

[0125] Step S446: if the vertical tension is greater than the second vertical tension threshold, the line icing level of the transmission line is recorded as level 3 icing; it is determined that there is a serious icing phenomenon on the transmission line, which needs to be dealt with in time;

[0126] The second vertical tension threshold is greater than the first vertical tension threshold; the ice coverage of the third level icing is higher than the ice coverage of the second level icing, and the ice coverage of the second level icing is higher than the ice coverage of the first level icing;

[0127] Step S45: sending the line icing level corresponding to the transmission line to the alarm terminal.

[0128] Step S5, the alarm terminal receives the line icing level corresponding to the line icing level and generates different alarms to remind the user of the degree of icing of the power transmission line.

[0129] In this application, if corresponding calculation formulas appear, the above calculation formulas are all dimensionless and take their numerical calculations. The weight coefficients, proportional coefficients and other coefficients in the formulas are set to a result value obtained by quantifying each parameter. The size of the weight coefficient and the proportional coefficient can be determined as long as it does not affect the proportional relationship between the parameter and the result value.

[0130] Embodiment 2: Based on another concept of the same invention, a transmission line intelligent monitoring system is proposed, the system includes a data acquisition module, a first analysis module, a second analysis module, an ice determination module and an alarm terminal;

[0131] The data acquisition module is used to collect the insulator string suspension data of the insulator string corresponding to the transmission line and the line status data of the transmission line, and send the line status data of the transmission line to the first analysis module, and send the insulator string suspension data of the insulator string and the line status data of the transmission line to the second analysis module;

[0132] The first analysis module is used to analyze the stress condition of the transmission line, obtain the environmental impact tension corresponding to the insulator string and send it to the icing judgment module;

[0133] The second analysis module is used to perform a comprehensive analysis on the transmission line, obtain the insulator string inclination angle of the insulator string in the transmission line and send it to the ice determination module;

[0134] The icing identification module is used to analyze the environmental impact tension of the insulator string and the inclination angle of the insulator string, obtain the line icing level corresponding to the transmission line and send it to the alarm terminal;

[0135] The alarm terminal receives the line icing level corresponding to the line icing level and generates different alarms to remind the user of the degree of icing of the power transmission line.

[0136] Example 3: Figure 8 As shown, this embodiment provides a computer device, which may include: a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus. The processor may call the logic instructions in the memory to execute a transmission line intelligent monitoring method, which includes: collecting the insulator string suspension data of the insulator string corresponding to the transmission line and the line status data of the transmission line; calculating the environmental impact tension corresponding to the insulator string according to the line status data of the transmission line; calculating the insulator string inclination angle of the corresponding insulator string according to the line status data corresponding to the transmission line and the insulator string suspension data; analyzing the environmental impact tension of the insulator string and the insulator string inclination angle to obtain the line icing level corresponding to the transmission line; the alarm terminal receives the line icing level corresponding to the line icing level, and generates different alarms to prompt the user of the icing degree of the transmission line.

[0137] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art, and the computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk.

[0138] Embodiment 4, the present application also provides a computer program product, the computer program product includes a computer program stored on a computer-readable storage medium, the computer program includes program instructions, when the program instructions are executed by a computer, the computer can execute a transmission line intelligent monitoring method provided by the above methods, the method including: collecting insulator string suspension data of the insulator string corresponding to the transmission line and the line status data of the transmission line; calculating the environmental impact tension corresponding to the insulator string according to the line status data of the transmission line; calculating the insulator string inclination angle of the corresponding insulator string according to the line status data corresponding to the transmission line and the insulator string suspension data; analyzing the environmental impact tension of the insulator string and the insulator string inclination angle to obtain the line icing level corresponding to the transmission line; the alarm terminal receives the line icing level corresponding to the line icing level, and generates different alarms to prompt the user of the degree of icing of the transmission line.

[0139] Embodiment 5, the present application also provides a computer-readable storage medium having a computer program stored thereon, and the computer program is implemented when being executed by a processor to execute a method for intelligent monitoring of a power transmission line provided above, the method comprising: collecting insulator string suspension data of an insulator string corresponding to the transmission line and line status data of the transmission line; calculating the environmental impact tension corresponding to the insulator string based on the line status data of the transmission line; calculating the insulator string inclination angle of the corresponding insulator string based on the line status data corresponding to the transmission line and the insulator string suspension data; analyzing the environmental impact tension of the insulator string and the insulator string inclination angle to obtain a line icing level corresponding to the transmission line; an alarm terminal receives the line icing level corresponding to the line icing level, and generates different alarms to prompt the user of the degree of icing on the transmission line.

[0140] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0141] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0142] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for intelligent monitoring of power transmission lines, characterized in that: Methods include: Step S1, collecting insulator string suspension data of the insulator string corresponding to the transmission line and line status data of the transmission line; Step S2, calculating the environmental impact tension corresponding to the insulator string according to the line status data of the transmission line; The step S2 includes the following sub-steps: Step S21, measuring the insulator string tension corresponding to the insulator string at the current moment by means of a tension measuring device; Step S22, obtaining line status data corresponding to the transmission line, obtaining the line cross-sectional area HJM corresponding to the transmission line, the line split number FLS and the deadweight load ratio ZZB of the transmission line; Step S23, calculate the predicted vertical load YCZ of the corresponding transmission line without external interference by using a formula, the specific formula is as follows: YCZ=FLS×HJM×ZZB×CDJ×g; where CDJ is the vertical span and g is the gravitational constant; Step S24, calculate the predicted horizontal load YSZ of the corresponding transmission line without external interference by using a formula, in Newtons, and the formula is as follows: YSZ=FLS×HJM×FYB×SDJ×g; where SDJ is the horizontal span and FYB is the wind pressure load ratio of the transmission line; Step S25, adding the predicted vertical load and the predicted horizontal load of the transmission line by force synthesis operation to obtain the predicted insulator string tension corresponding to the insulator string; Step S26, subtracting the predicted insulator string tension from the insulator string tension to obtain the environmental impact tension; Step S3, calculating the insulator string inclination angle of the corresponding insulator string according to the line state data corresponding to the transmission line and the insulator string suspension data; Step S4, analyzing the environmental impact tension of the insulator string and the inclination angle of the insulator string to obtain the line icing level corresponding to the transmission line; Step S5, the alarm terminal receives the line icing level corresponding to the line icing level and generates different alarms to remind the user of the degree of icing of the power transmission line.

2. A method for intelligent monitoring of power transmission lines according to claim 1, characterized in that: The line status data includes the line cross-sectional area, line diameter, number of line splits, deadweight load ratio of the transmission line and unit weight corresponding to the transmission line; The insulator string suspension data includes the type of transmission tower corresponding to the insulator string, the weight of the insulator string, the suspension condition of the insulator string weight, and the weight of the corresponding weight.

3. A method for intelligent monitoring of power transmission lines according to claim 1, characterized in that: The step S3 includes the following sub-steps: Step S31, acquiring line status data corresponding to the transmission line, obtaining the line cross-sectional area SJM, line diameter SZJ, line split number FLS and unit weight SDZ corresponding to the transmission line; Step S32, collect the average wind speed PFS corresponding to the transmission line, and calculate the wind load SFZ per unit length of the transmission line by the formula, the specific formula is as follows: Where FJX is the correction coefficient of the transmission line when the wind speed is uneven; Step S33, calculate the gravity load SZZ per unit length corresponding to the transmission line by a formula, the specific calculation formula is as follows: SZZ=g×SDZ / SJM.

4. A method for intelligent monitoring of power transmission lines according to claim 3, characterized in that: The step S3 further comprises the following sub-steps: Step S34, obtaining the weight JZL of the corresponding insulator string in the transmission line, and calculating the gravity load JZZ and wind load JFZ of the insulator string on the transmission line by the formula, the specific formula is as follows: JZZ=JZL×g; JFZ=g×JMJ×PFS 2 / 16; where JMJ is the total area of ​​the insulator string under the influence of wind speed; Step S35, obtaining the insulator string suspension data of the corresponding insulator string in the transmission line, and obtaining the type of the transmission tower corresponding to the insulator string and the insulator string weight suspension condition; Step S36, calculating the insulator string inclination angle corresponding to the insulator string.

5. A method for intelligent monitoring of power transmission lines according to claim 4, characterized in that: The calculation process of step S36 is specifically as follows: Step S361: If the transmission tower corresponding to the insulator string is a vertical transmission tower and no weight is hung on the insulator string, the insulator string inclination angle φ corresponding to the insulator string is calculated by the following formula. The specific formula is as follows: Where, arctan is the inverse tangent function, SDJ is the horizontal span, and CDJ is the vertical span; Step S362: If the transmission tower corresponding to the insulator string is a tension transmission tower or a weight is hung on the insulator string, the insulator string inclination angle φ corresponding to the insulator string is calculated by the following formula. The specific formula is as follows: Where α is the line rotation angle corresponding to the transmission line, and XGZ is the gravity load of the hanging weight.

6. A method for intelligent monitoring of power transmission lines according to claim 1, characterized in that: The step S4 includes the following sub-steps: Step S41, obtaining the environmental impact tension and insulator string inclination angle of the insulator string corresponding to the transmission line; Step S42, comparing the environmental impact tension of the insulator string with the environmental impact tension interval, and comparing the insulator string inclination angle of the insulator string with the initial insulator string inclination angle interval; When the environmental impact tension corresponding to the insulator string is within the environmental impact tension range and the insulator string inclination angle corresponding to the insulator string is within the insulator string inclination angle range, it is determined that there is no ice coating on the transmission line corresponding to the insulator string; Step S43, when any one of the insulator string tension or the insulator string inclination angle corresponding to the insulator string is outside the corresponding interval, it is determined that the transmission line corresponding to the insulator string has ice coating; Step S44, analyzing the degree of icing of the transmission line to determine whether the icing level of the corresponding transmission line is level one, level two, or level three; Step S45: sending the line icing level corresponding to the transmission line to the alarm terminal.

7. A method for intelligent monitoring of power transmission lines according to claim 6, characterized in that: The analysis process of step S44 is specifically as follows: Step S441, obtaining the environmental impact tension and insulator string inclination angle of the insulator string corresponding to the transmission line; Step S442, decomposing the environmental influence tension of the insulator string according to the inclination angle of the insulator string to obtain the vertical tension and the horizontal tension corresponding to the environmental influence tension; Step S443, comparing the vertical tension with the corresponding vertical tension threshold; Step S444: if the vertical tension is less than or equal to the first vertical tension threshold, the line icing level of the transmission line is recorded as level one icing; Step S445: if the vertical tension is greater than the first vertical tension threshold and the vertical tension is less than or equal to the second vertical tension threshold, the line icing level of the transmission line is recorded as level 2 icing; Step S446: if the vertical tension is greater than the second vertical tension threshold, the line icing level of the transmission line is recorded as level three icing; Among them, the second vertical tension threshold is greater than the first vertical tension threshold; the ice coverage degree of the third level ice coverage is higher than the ice coverage degree of the second level ice coverage, and the ice coverage degree of the second level ice coverage is higher than the ice coverage degree of the first level ice coverage.

8. An intelligent monitoring system for power transmission lines, characterized in that: A transmission line intelligent monitoring method according to any one of claims 1 to 7, comprising: A data acquisition module, used for collecting the insulator string suspension data of the insulator string corresponding to the transmission line and the line status data of the transmission line, sending the line status data of the transmission line to the first analysis module, and sending the insulator string suspension data of the insulator string and the line status data of the transmission line to the second analysis module; The first analysis module is used to analyze the stress condition of the transmission line, obtain the environmental impact tension corresponding to the insulator string and send it to the icing judgment module; The second analysis module is used to perform a comprehensive analysis on the transmission line, obtain the insulator string inclination angle of the insulator string in the transmission line and send it to the ice determination module; The icing identification module is used to analyze the environmental impact tension of the insulator string and the inclination angle of the insulator string, obtain the line icing level corresponding to the transmission line and send it to the alarm terminal; The alarm terminal is used to receive the line icing level corresponding to the line icing level and generate different alarms to inform the user of the degree of icing on the transmission line.

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

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