Buried pipeline cathode protection monitoring method, device, equipment and medium

Abstract

The invention relates to a buried pipeline cathode protection monitoring method, device, equipment and medium, and belongs to the field of pipeline corrosion prevention. The method comprises the following steps: collecting cathode protection data of the buried pipeline; constructing a soil corrosivity evaluation model and outputting a soil corrosivity result; outputting the cathode protection effectiveness of the buried pipeline according to the cathode protection parameters; transmitting a buried pipeline cathode protection regulation and control signal by a Beidou satellite navigation system, and regulating and controlling the buried pipeline cathode protection data by a buried pipeline automatic regulation and control system; the cathode protection information of the buried pipeline is uploaded to a cloud server; and presetting a depolarization period according to the buried pipeline cathode protection information, carrying out a depolarization test, and outputting the polarization effectiveness of the buried pipeline, so that pipeline cathode protection is carried out according to soil corrosivity in combination with soil physical and chemical characteristics, and meanwhile, accurate space-time enabling is carried out in combination with Beidou; the cathode protection of the pipeline is more accurate and timely, the efficiency is higher, and remote regulation and control are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline anti-corrosion, and in particular relates to a method, device, equipment and medium for monitoring cathode protection of buried pipelines. Background Art

[0002] Cathodic protection of buried pipelines is an important means to prevent corrosion of buried pipelines. Traditional cathodic protection monitoring methods mainly rely on manual on-site testing, which has problems such as low monitoring frequency, untimely data collection, and low management efficiency. The existing intelligent system for cathodic protection of underground pipelines focuses on monitoring the cathodic protection parameters of buried pipelines, but soil physical and chemical properties such as resistivity and pH will also have a significant impact on the cathodic protection effect of buried pipelines. Current monitoring methods rarely consider this factor, and different soil physical and chemical properties will lead to different soil corrosiveness. Monitoring the cathodic protection of buried pipelines under different soil corrosiveness is time-consuming and labor-intensive, with high costs and easy to cause waste of resources; in addition, with the continuous improvement of the precision of China's Beidou satellite timing, there is an urgent need for an intelligent, high-precision positioning and timing remote buried pipeline cathodic protection monitoring and control system. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the present invention provides a method, device, equipment and medium for monitoring cathodic protection of buried pipelines.

[0004] The purpose of the present invention can be achieved through the following technical solutions:

[0005] A method for monitoring cathodic protection of a buried pipeline, the implementation of which comprises the following steps:

[0006] S1: Establish a buried pipeline monitoring point and preset a buried pipeline monitoring cycle, collect buried pipeline cathodic protection data at the buried pipeline monitoring point according to the buried pipeline monitoring cycle, the buried pipeline cathodic protection data includes Beidou spatiotemporal cathodic protection data, soil corrosion parameters, and cathodic protection parameters, the soil corrosion parameters include soil resistivity, natural corrosion potential of pipeline, redox potential, soil pH, soil texture, soil moisture content, soil salt content, and soil chlorine content, the cathodic protection parameters include the total length of the buried pipeline, the length of the buried pipeline that is not effectively protected, the weight loss of the inspection piece without applying the cathodic protection potential, the weight loss of the inspection piece with the cathodic protection potential, the exposed area of ​​the inspection piece without applying the cathodic protection potential, the exposed area of ​​the inspection piece with the cathodic protection potential, and the effective operation time of the cathodic protection measures, the Beidou spatiotemporal cathodic protection data is obtained through the Beidou satellite navigation system, and the soil corrosion parameters are collected through a soil intelligent detector, and the soil intelligent detector includes a resistivity sensor, a potentiometer, a acidity meter, a soil moisture content meter, a soil salt content analyzer, and a soil nutrient rapid tester;

[0007] S2: constructing a soil corrosivity evaluation model according to the soil corrosion parameters and outputting soil corrosivity results, wherein the soil corrosivity results include soil strong corrosivity results, soil medium corrosivity results, soil weak corrosivity results, and soil weak corrosivity results;

[0008] S3: When the soil corrosivity evaluation model outputs the soil strong corrosivity result and the soil medium corrosivity result, the cathodic protection parameters within a radius of 500 meters with the buried pipeline monitoring point as the center are obtained based on the Beidou spatiotemporal cathodic protection data, and the cathodic protection effectiveness of the buried pipeline is output according to the cathodic protection parameters. The cathodic protection effectiveness of the buried pipeline includes the sacrificial anode protection effectiveness and the impressed current protection effectiveness. The sacrificial anode protection effectiveness is the cathodic protection effectiveness of the buried pipeline applying the sacrificial anode method, and the impressed current protection effectiveness is the cathodic protection effectiveness of the buried pipeline applying the impressed current method;

[0009] S4: Preset a buried pipeline cathodic protection effectiveness threshold. When the buried pipeline cathodic protection effectiveness is less than the buried pipeline cathodic protection effectiveness threshold, the Beidou satellite navigation system sends a buried pipeline cathodic protection control signal, and the buried pipeline automatic control system controls the cathodic protection parameters and the soil corrosion parameters until the buried pipeline cathodic protection effectiveness is greater than or equal to the buried pipeline cathodic protection effectiveness threshold.

[0010] S5: Upload the buried pipeline cathodic protection information to the cloud server, wherein the buried pipeline cathodic protection information includes a historical buried pipeline cathodic protection data set, the soil corrosivity result, the buried pipeline cathodic protection effectiveness, and the buried pipeline cathodic protection control signal;

[0011] S6: A depolarization cycle is preset according to the buried pipeline cathodic protection information, and the cloud server performs a depolarization test on the buried pipeline according to the depolarization cycle and outputs the polarization effectiveness of the buried pipeline, wherein the polarization effectiveness of the buried pipeline includes high polarization effectiveness of the buried pipeline and low polarization effectiveness of the buried pipeline.

[0012] Preferably, the step S2 specifically includes:

[0013] S201: Obtaining a soil corrosion parameter evaluation score according to the soil corrosion parameter, wherein the soil corrosion parameter evaluation score includes a soil resistivity evaluation score, a pipeline natural corrosion potential evaluation score, an oxidation-reduction potential evaluation score, a soil pH evaluation score, a soil texture evaluation score, a soil moisture content evaluation score, a soil salt content evaluation score, and a soil chlorine content evaluation score;

[0014] S202: Calculate the soil corrosivity evaluation score according to the soil corrosion parameter evaluation score and construct the soil corrosivity evaluation model. The calculation formula of the soil corrosivity evaluation score is:

[0015] N=N1+N2+N3+N4+N5+N6+N7+N8,

[0016] Among them, N is the soil corrosivity evaluation score, N1 is the soil resistivity evaluation score, N2 is the pipeline natural corrosion potential evaluation score, N3 is the oxidation-reduction potential evaluation score, N4 is the soil acidity evaluation score, N5 is the soil texture evaluation score, N6 is the soil moisture content evaluation score, N7 is the soil salt content evaluation score, and N8 is the soil chloride content evaluation score;

[0017] S203: obtaining a soil corrosivity evaluation threshold, wherein the soil corrosivity evaluation threshold includes a soil strong corrosivity threshold, a soil medium corrosivity threshold, and a soil weak corrosivity threshold, and obtaining the soil corrosivity result by comparing the soil corrosivity evaluation score with the soil corrosivity evaluation threshold;

[0018] Determining the soil corrosivity evaluation score, and when the soil corrosivity evaluation score is greater than or equal to the soil strong corrosivity threshold, outputting the soil strong corrosivity result;

[0019] When the soil corrosivity evaluation score is greater than or equal to the soil medium corrosivity threshold and less than the soil strong corrosivity threshold, the soil medium corrosivity result is output;

[0020] When the soil corrosivity evaluation score is greater than or equal to the soil weak corrosivity threshold and less than the soil medium corrosivity threshold, the soil weak corrosivity result is output;

[0021] When the soil corrosivity evaluation score is less than the soil weak corrosivity threshold, the soil weak corrosivity result is output.

[0022] Preferably, the step S201 specifically includes:

[0023] S201-1: The soil resistivity evaluation score is expressed as:

[0024]

[0025] Where N1 is the soil resistivity evaluation score, ρ is the soil resistivity in ohm-meter;

[0026] S201-2: The expression of the pipeline natural corrosion potential evaluation score is:

[0027]

[0028] Among them, N2 is the evaluation score of pipeline natural corrosion potential, and E is the pipeline natural corrosion potential, in millivolts;

[0029] S201-3: The expression of the oxidation-reduction potential evaluation score is:

[0030]

[0031] Wherein, N3 is the redox potential evaluation score, Eh is the redox potential, in millivolts;

[0032] S201-5: The expression of the soil pH evaluation score is:

[0033]

[0034] Among them, N4 is the soil acidity and alkalinity evaluation score, and pH is the soil acidity and alkalinity;

[0035] S201-5: The expression of the soil texture evaluation score is:

[0036]

[0037] Among them, N5 is the soil texture evaluation score;

[0038] S201-6: The expression of the soil moisture evaluation score is:

[0039]

[0040] Among them, N6 is the soil moisture evaluation score, ω is the soil moisture content, the unit is %;

[0041] S201-7: The expression of the soil salinity evaluation score is:

[0042]

[0043] Among them, N7 is the soil salt content evaluation score, C s is the soil salt content, in %;

[0044] S201-8: The expression of the soil chlorine content evaluation score is:

[0045]

[0046] Among them, N8 is the soil chlorine content evaluation score, C Cl is the soil chlorine content, in %.

[0047] Preferably, the step S3 specifically includes:

[0048] S301: obtaining sacrificial anode protection parameters according to the cathodic protection parameters, obtaining the validity of the sacrificial anode protection parameters according to the sacrificial anode protection parameters and outputting the validity of the sacrificial anode protection, wherein the sacrificial anode protection parameters include sacrificial anode protection potential, sacrificial anode protection rate and sacrificial anode protection degree, and the validity of the sacrificial anode protection parameters includes the validity of the sacrificial anode protection potential, the validity of the sacrificial anode protection rate and the validity of the sacrificial anode protection degree;

[0049] S302: Obtain impressed current protection parameters according to the cathode protection parameters, obtain impressed current protection parameter validity according to the impressed current protection parameters and output the impressed current protection validity, the impressed current protection parameters include cathode power-on point potential, impressed current protection potential, impressed current operation rate, impressed current protection degree, the impressed current protection parameter validity includes cathode power-on point potential validity, impressed current protection potential validity, impressed current operation rate validity, impressed current protection degree validity.

[0050] Preferably, the step S301 specifically includes:

[0051] S301-1: judging the sacrificial anode protection potential according to the preset sacrificial anode protection potential range of the buried pipeline material; when the sacrificial anode protection potential is within the sacrificial anode protection potential range, the validity value of the sacrificial anode protection potential is 1; when the sacrificial anode protection potential is outside the sacrificial anode protection potential range, the validity value of the sacrificial anode protection potential is 0;

[0052] S301-2: Calculate the sacrificial anode protection rate according to the cathodic protection parameters, and the calculation formula is:

[0053]

[0054] Where, β is the sacrificial anode protection rate, in %, and L is the total length of the buried pipeline, in meters. W The length of buried pipeline that is not effectively protected, in meters;

[0055] When the sacrificial anode protection rate is 100%, the effectiveness of the sacrificial anode protection rate is 1, and when the sacrificial anode protection rate is less than 100%, the effectiveness of the sacrificial anode protection rate is 0;

[0056] S301-3: Calculate the sacrificial anode protection degree according to the cathodic protection parameters, and the calculation formula is:

[0057]

[0058] Wherein, η is the sacrificial anode protection degree, in %, G1 is the weight loss of the inspection piece without applying the cathodic protection potential, in grams, G2 is the weight loss of the inspection piece with the cathodic protection potential applied, in grams, S1 is the exposed area of ​​the inspection piece without applying the cathodic protection potential, in square centimeters, S2 is the exposed area of ​​the inspection piece with the cathodic protection potential applied, in square centimeters;

[0059] When the sacrificial anode protection degree is greater than or equal to 85%, the sacrificial anode protection degree effectiveness value is 1, and when the sacrificial anode protection degree is less than 85%, the sacrificial anode protection degree effectiveness value is 0;

[0060] S301-4: Calculate the effectiveness of the sacrificial anode protection according to the effectiveness of the sacrificial anode protection parameters, the calculation formula is:

[0061]

[0062] Among them, ε is the effectiveness of sacrificial anode protection, the unit is %, ε1 is the effectiveness of sacrificial anode protection potential, the unit is %, ε2 is the effectiveness of sacrificial anode protection rate, the unit is %, and ε3 is the effectiveness of sacrificial anode protection degree, the unit is %.

[0063] Preferably, the step S302 specifically includes:

[0064] S302-1: Obtain the maximum protection potential of the buried pipeline, determine the cathode power-on point potential, when the cathode power-on point potential is less than the maximum protection potential of the buried pipeline, the cathode power-on point potential validity value is 1, when the cathode power-on point potential is greater than or equal to the maximum protection potential of the buried pipeline, the cathode power-on point potential validity value is 0;

[0065] S302-2: Preset an impressed current protection potential range according to the material of the buried pipeline, determine the impressed current protection potential, when the impressed current protection potential is within the impressed current protection potential range, the impressed current protection potential validity value is 1, when the impressed current protection potential is outside the impressed current protection potential range, the impressed current protection potential validity value is 0;

[0066] S302-3: Calculate the impressed current operation rate according to the cathodic protection parameters, and the calculation formula is:

[0067]

[0068] in, is the impressed current operation rate, in %, t is the effective operation time of the cathodic protection measures in one year, in hours, T is the number of hours in a year, and the value is 8760 hours;

[0069] When the impressed current operation rate is greater than or equal to 98%, the impressed current operation rate validity value is 1, and when the impressed current operation rate is less than 98%, the impressed current operation rate validity value is 0;

[0070] S302-4: Calculate the impressed current protection degree according to the cathodic protection parameters, the calculation formula is:

[0071]

[0072] Wherein, κ is the impressed current protection degree, η is the sacrificial anode protection degree, in %, G1 is the weight loss of the inspection piece without applying the cathodic protection potential, in grams, G2 is the weight loss of the inspection piece with the cathodic protection potential, in grams, S1 is the exposed area of ​​the inspection piece without applying the cathodic protection potential, in square centimeters, S2 is the exposed area of ​​the inspection piece with the cathodic protection potential, in square centimeters;

[0073] When the impressed current protection degree is greater than or equal to 85%, the impressed current protection degree validity value is 1, and when the impressed current protection degree is less than 85%, the impressed current protection degree validity value is 0;

[0074] S302-5: Calculate the impressed current protection effectiveness according to the impressed current protection parameter effectiveness, the calculation formula is:

[0075]

[0076] Among them, φ is the effectiveness of impressed current protection, unit is %, φ1 is the effectiveness of cathode energization point potential, unit is %, φ2 is the effectiveness of impressed current protection potential, unit is %, φ3 is the effectiveness of impressed current operation rate, unit is %, φ4 is the effectiveness of impressed current protection degree, unit is %.

[0077] Preferably, the step S6 specifically includes:

[0078] S601: Obtaining the buried pipeline power potential through a voltmeter, wherein the buried pipeline power potential is the buried pipeline potential when the buried pipeline cathodic protection is operating normally;

[0079] S602: Synchronously interrupting the current of the buried pipeline by a current synchronization interrupter, and obtaining the power-off potential of the buried pipeline by a voltmeter, wherein the power-off potential of the buried pipeline is the potential of the buried pipeline when the current of the buried pipeline is interrupted;

[0080] S603: Keep interrupting the buried pipeline current and record the buried pipeline depolarization potential, where the buried pipeline depolarization potential is the buried pipeline potential when the buried pipeline current is at a stable depolarization level;

[0081] S604: Calculate the cathode polarization attenuation value of the buried pipeline according to the power-off potential of the buried pipeline and the depolarization potential of the buried pipeline, and the calculation formula is:

[0082] △E=|E J -E off |,

[0083] Among them, △E is the cathode polarization attenuation value of the buried pipeline, the unit is millivolt, E J is the depolarization potential of the buried pipeline, in millivolts, E off is the power-off potential of the buried pipeline, in millivolts, and |·| is the absolute value;

[0084] S605: Preset a cathode polarization attenuation threshold of the buried pipeline, and obtain the polarization validity of the buried pipeline by comparing the cathode polarization attenuation value of the buried pipeline with the cathode polarization attenuation threshold of the buried pipeline;

[0085] Determine the cathode polarization attenuation value of the buried pipeline, and when the cathode polarization attenuation value of the buried pipeline is greater than or equal to the cathode polarization attenuation threshold of the buried pipeline, output the high effectiveness of the polarization of the buried pipeline;

[0086] When the cathode polarization attenuation value of the buried pipeline is less than the cathode polarization attenuation threshold of the buried pipeline, the low effectiveness of the polarization of the buried pipeline is output.

[0087] An intelligent monitoring device for cathodic protection of buried pipelines based on Beidou precise time and space empowerment, which is used to execute the above-mentioned buried pipeline cathodic protection monitoring method, characterized in that it includes a data acquisition module, a soil corrosivity evaluation module, a cathodic protection effectiveness evaluation module, a cathodic protection effectiveness control module, a data upload module, and a depolarization module;

[0088] The data acquisition module is used to set up a buried pipeline monitoring point and preset a buried pipeline monitoring cycle, and collect buried pipeline cathodic protection data at the buried pipeline monitoring point according to the buried pipeline monitoring cycle, wherein the buried pipeline cathodic protection data includes Beidou space-time cathodic protection data, soil corrosion parameters, and cathodic protection parameters;

[0089] The soil corrosivity evaluation module is used to construct a soil corrosivity evaluation model according to the soil corrosion parameters and output soil corrosivity results, wherein the soil corrosivity results include soil strong corrosivity results, soil medium corrosivity results, soil weak corrosivity results, and soil weak corrosivity results;

[0090] The cathodic protection effectiveness evaluation module is used for obtaining the cathodic protection parameters within a radius of 500 meters with the buried pipeline monitoring point as the center based on the Beidou spatiotemporal cathodic protection data when the soil corrosivity evaluation model outputs the soil strong corrosivity result and the soil medium corrosivity result, and outputting the cathodic protection effectiveness of the buried pipeline according to the cathodic protection parameters, wherein the cathodic protection effectiveness of the buried pipeline includes the sacrificial anode protection effectiveness and the impressed current protection effectiveness;

[0091] The cathodic protection effectiveness control module is used to preset a buried pipeline cathodic protection effectiveness threshold. When the buried pipeline cathodic protection effectiveness is less than the buried pipeline cathodic protection effectiveness threshold, the Beidou satellite navigation system sends a buried pipeline cathodic protection control signal, and the buried pipeline automatic control system controls the cathodic protection parameters and the soil corrosion parameters until the buried pipeline cathodic protection effectiveness is greater than or equal to the buried pipeline cathodic protection effectiveness threshold.

[0092] The data uploading module is used to upload the buried pipeline cathodic protection information to the cloud server, wherein the buried pipeline cathodic protection information includes a historical buried pipeline cathodic protection data set, the soil corrosivity result, the buried pipeline cathodic protection effectiveness, and the buried pipeline cathodic protection control signal;

[0093] The depolarization module is used to preset a depolarization cycle according to the buried pipeline cathodic protection information. The cloud server performs a depolarization test on the buried pipeline according to the depolarization cycle and outputs the polarization effectiveness of the buried pipeline. The polarization effectiveness of the buried pipeline includes high polarization effectiveness of the buried pipeline and low polarization effectiveness of the buried pipeline.

[0094] An electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned buried pipeline cathodic protection monitoring method when executing the program.

[0095] A storage medium containing computer executable instructions, which are used to execute the above-mentioned buried pipeline cathodic protection monitoring method when executed by a computer processor.

[0096] The beneficial effects of the present invention are:

[0097] (1) Through the precise spatial and temporal empowerment of Beidou and the physical and chemical properties of soil such as soil resistivity and soil pH, the cathodic protection of buried pipelines is comprehensively carried out. The effectiveness of cathodic protection of buried pipelines is monitored according to the corrosiveness of the soil, and the cathodic protection of buried pipelines is regulated according to the effectiveness of cathodic protection of buried pipelines, so as to improve the monitoring efficiency and reduce the monitoring cost. The buried pipeline monitoring method combined with the physical and chemical properties of soil is more comprehensive and objective.

[0098] (2) Based on the precise spatial and temporal empowerment of Beidou satellites, the monitoring points of buried pipelines can be quickly and accurately located, and remote cathodic protection monitoring and control of buried pipelines can be performed intelligently and with high precision;

[0099] (3) Obtain soil corrosivity evaluation scores through soil physical and chemical properties, comprehensively evaluate soil corrosivity, and decide whether to monitor the effectiveness of buried pipeline cathodic protection according to the strength of soil corrosivity, thereby reducing workload and improving work efficiency;

[0100] (4) The cathode polarization attenuation value of the buried pipeline is calculated by the power-off potential and depolarization potential of the buried pipeline, and a depolarization test of the buried pipeline is carried out to evaluate the long-term effectiveness of the cathodic protection system of the buried pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0101] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0102] Figure 1 The present invention is a flowchart of the steps of a buried pipeline cathodic protection monitoring method. DETAILED DESCRIPTION

[0103] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0104] The working principle and use process of the present invention:

[0105] See also Figure 1 , a buried pipeline cathodic protection monitoring method, comprising:

[0106] S1: Establish a buried pipeline monitoring point and preset a buried pipeline monitoring cycle, collect buried pipeline cathodic protection data at the buried pipeline monitoring point according to the buried pipeline monitoring cycle, the buried pipeline cathodic protection data includes Beidou spatiotemporal cathodic protection data, soil corrosion parameters, and cathodic protection parameters, the soil corrosion parameters include soil resistivity, natural corrosion potential of pipeline, redox potential, soil pH, soil texture, soil moisture content, soil salt content, and soil chlorine content, the cathodic protection parameters include the total length of the buried pipeline, the length of the buried pipeline that is not effectively protected, the weight loss of the inspection piece without applying the cathodic protection potential, the weight loss of the inspection piece with the cathodic protection potential, the exposed area of ​​the inspection piece without applying the cathodic protection potential, the exposed area of ​​the inspection piece with the cathodic protection potential, and the effective operation time of the cathodic protection measures, the Beidou spatiotemporal cathodic protection data is obtained through the Beidou satellite navigation system, and the soil corrosion parameters are collected through a soil intelligent detector, and the soil intelligent detector includes a resistivity sensor, a potentiometer, a acidity meter, a soil moisture content meter, a soil salt content analyzer, and a soil nutrient rapid tester;

[0107] S2: constructing a soil corrosivity evaluation model according to the soil corrosion parameters and outputting soil corrosivity results, wherein the soil corrosivity results include soil strong corrosivity results, soil medium corrosivity results, soil weak corrosivity results, and soil weak corrosivity results;

[0108] S3: When the soil corrosivity evaluation model outputs the soil strong corrosivity result and the soil medium corrosivity result, the cathodic protection parameters within a radius of 500 meters with the buried pipeline monitoring point as the center are obtained based on the Beidou spatiotemporal cathodic protection data, and the effectiveness of the buried pipeline cathodic protection is output according to the cathodic protection parameters. The buried pipeline cathodic protection includes the sacrificial anode method and the impressed current method. The effectiveness of the buried pipeline cathodic protection includes the effectiveness of the sacrificial anode protection and the impressed current protection. The effectiveness of the sacrificial anode protection is the effectiveness of the buried pipeline cathodic protection with the sacrificial anode method applied, and the effectiveness of the impressed current protection is the effectiveness of the buried pipeline cathodic protection with the impressed current method applied.

[0109] S4: Preset a buried pipeline cathodic protection effectiveness threshold. When the buried pipeline cathodic protection effectiveness is less than the buried pipeline cathodic protection effectiveness threshold, the Beidou satellite navigation system sends a buried pipeline cathodic protection control signal, and the buried pipeline automatic control system controls the cathodic protection parameters and the soil corrosion parameters until the buried pipeline cathodic protection effectiveness is greater than or equal to the buried pipeline cathodic protection effectiveness threshold.

[0110] S5: Upload the buried pipeline cathodic protection information to the cloud server, wherein the buried pipeline cathodic protection information includes a historical buried pipeline cathodic protection data set, the soil corrosivity result, the buried pipeline cathodic protection effectiveness, and the buried pipeline cathodic protection control signal;

[0111] S6: A depolarization cycle is preset according to the buried pipeline cathodic protection information, and the cloud server performs a depolarization test on the buried pipeline according to the depolarization cycle and outputs the polarization effectiveness of the buried pipeline, wherein the polarization effectiveness of the buried pipeline includes high polarization effectiveness of the buried pipeline and low polarization effectiveness of the buried pipeline.

[0112] In this embodiment, a soil corrosivity evaluation model is constructed according to the soil corrosion parameters and soil corrosivity results are output, wherein the soil corrosivity results include soil strong corrosivity results, soil medium corrosivity results, soil weak corrosivity results, and soil weak corrosivity results, which are specifically implemented by the following steps:

[0113] S201: Obtaining a soil corrosion parameter evaluation score according to the soil corrosion parameter, wherein the soil corrosion parameter evaluation score includes a soil resistivity evaluation score, a pipeline natural corrosion potential evaluation score, an oxidation-reduction potential evaluation score, a soil pH evaluation score, a soil texture evaluation score, a soil moisture content evaluation score, a soil salt content evaluation score, and a soil chlorine content evaluation score;

[0114] S202: Calculate the soil corrosivity evaluation score according to the soil corrosion parameter evaluation score and construct the soil corrosivity evaluation model, comprehensively evaluate the soil corrosivity, and decide whether to monitor the effectiveness of buried pipeline cathodic protection according to the strength of soil corrosivity, so as to reduce workload and improve work efficiency. The calculation formula of the soil corrosivity evaluation score is:

[0115] N=N1+N2+N3+N4+N5+N6+N7+N8,

[0116] Among them, N is the soil corrosivity evaluation score, N1 is the soil resistivity evaluation score, N2 is the pipeline natural corrosion potential evaluation score, N3 is the oxidation-reduction potential evaluation score, N4 is the soil acidity evaluation score, N5 is the soil texture evaluation score, N6 is the soil moisture content evaluation score, N7 is the soil salt content evaluation score, and N8 is the soil chloride content evaluation score;

[0117] S203: obtaining a soil corrosivity evaluation threshold, wherein the soil corrosivity evaluation threshold includes a soil strong corrosivity threshold, a soil medium corrosivity threshold, and a soil weak corrosivity threshold, and obtaining the soil corrosivity result by comparing the soil corrosivity evaluation score with the soil corrosivity evaluation threshold;

[0118] Determining the soil corrosivity evaluation score, and when the soil corrosivity evaluation score is greater than or equal to the soil strong corrosivity threshold, outputting the soil strong corrosivity result;

[0119] When the soil corrosivity evaluation score is greater than or equal to the soil medium corrosivity threshold and less than the soil strong corrosivity threshold, the soil medium corrosivity result is output;

[0120] When the soil corrosivity evaluation score is greater than or equal to the soil weak corrosivity threshold and less than the soil medium corrosivity threshold, the soil weak corrosivity result is output;

[0121] When the soil corrosivity evaluation score is less than the soil weak corrosivity threshold, the soil weak corrosivity result is output.

[0122] In this embodiment, a soil corrosion parameter evaluation score is obtained according to the soil corrosion parameter, and the soil corrosion parameter evaluation score includes a soil resistivity evaluation score, a pipeline natural corrosion potential evaluation score, an oxidation-reduction potential evaluation score, a soil pH evaluation score, a soil texture evaluation score, a soil moisture content evaluation score, a soil salt content evaluation score, and a soil chlorine content evaluation score, which can be specifically achieved by the following steps:

[0123] S201-1: The soil resistivity evaluation score is expressed as:

[0124]

[0125] Where N1 is the soil resistivity evaluation score, ρ is the soil resistivity in ohm-meter;

[0126] S201-2: The expression of the pipeline natural corrosion potential evaluation score is:

[0127]

[0128] Among them, N2 is the evaluation score of pipeline natural corrosion potential, and E is the pipeline natural corrosion potential, in millivolts;

[0129] S201-3: The expression of the oxidation-reduction potential evaluation score is:

[0130]

[0131] Wherein, N3 is the redox potential evaluation score, Eh is the redox potential, in millivolts;

[0132] S201-5: The expression of the soil pH evaluation score is:

[0133]

[0134] Among them, N4 is the soil acidity and alkalinity evaluation score, and pH is the soil acidity and alkalinity;

[0135] S201-5: The expression of the soil texture evaluation score is:

[0136]

[0137] Among them, N5 is the soil texture evaluation score;

[0138] S201-6: The expression of the soil moisture evaluation score is:

[0139]

[0140] Among them, N6 is the soil moisture evaluation score, ω is the soil moisture content, the unit is %;

[0141] S201-7: The expression of the soil salinity evaluation score is:

[0142]

[0143] Among them, N7 is the soil salt content evaluation score, C s is the soil salt content, in %;

[0144] S201-8: The expression of the soil chlorine content evaluation score is:

[0145]

[0146] Among them, N8 is the soil chlorine content evaluation score, C Cl is the soil chlorine content, in %.

[0147] In this embodiment, when the soil corrosivity evaluation model outputs the soil strong corrosivity result and the soil medium corrosivity result, the cathodic protection parameters within a radius of 500 meters with the buried pipeline monitoring point as the center are obtained based on the Beidou spatiotemporal cathodic protection data, and remote buried pipeline cathodic protection monitoring and regulation are performed intelligently and accurately. The effectiveness of the buried pipeline cathodic protection is output according to the cathodic protection parameters. The buried pipeline cathodic protection includes the sacrificial anode method and the impressed current method. The effectiveness of the buried pipeline cathodic protection includes the effectiveness of the sacrificial anode protection and the effectiveness of the impressed current protection, which can be specifically achieved by the following steps:

[0148] S301: obtaining sacrificial anode protection parameters according to the cathodic protection parameters, obtaining the validity of the sacrificial anode protection parameters according to the sacrificial anode protection parameters and outputting the validity of the sacrificial anode protection, wherein the sacrificial anode protection parameters include sacrificial anode protection potential, sacrificial anode protection rate and sacrificial anode protection degree, and the validity of the sacrificial anode protection parameters includes the validity of the sacrificial anode protection potential, the validity of the sacrificial anode protection rate and the validity of the sacrificial anode protection degree;

[0149] S302: Obtain impressed current protection parameters according to the cathode protection parameters, obtain impressed current protection parameter validity according to the impressed current protection parameters and output the impressed current protection validity, the impressed current protection parameters include cathode power-on point potential, impressed current protection potential, impressed current operation rate, impressed current protection degree, the impressed current protection parameter validity includes cathode power-on point potential validity, impressed current protection potential validity, impressed current operation rate validity, impressed current protection degree validity.

[0150] In this embodiment, obtaining sacrificial anode protection parameters according to the cathode protection parameters, obtaining the validity of sacrificial anode protection parameters according to the sacrificial anode protection parameters and outputting the sacrificial anode protection validity can be specifically implemented by the following steps:

[0151] S301-1: judging the sacrificial anode protection potential according to the preset sacrificial anode protection potential range of the buried pipeline material; when the sacrificial anode protection potential is within the sacrificial anode protection potential range, the validity value of the sacrificial anode protection potential is 1; when the sacrificial anode protection potential is outside the sacrificial anode protection potential range, the validity value of the sacrificial anode protection potential is 0;

[0152] S301-2: Calculate the sacrificial anode protection rate according to the cathodic protection parameters, and the calculation formula is:

[0153]

[0154] Where, β is the sacrificial anode protection rate, in %, and L is the total length of the buried pipeline, in meters. W The length of buried pipeline that is not effectively protected, in meters;

[0155] When the sacrificial anode protection rate is 100%, the effectiveness of the sacrificial anode protection rate is 1, and when the sacrificial anode protection rate is less than 100%, the effectiveness of the sacrificial anode protection rate is 0;

[0156] S301-3: Calculate the sacrificial anode protection degree according to the cathodic protection parameters, and the calculation formula is:

[0157]

[0158] Wherein, η is the sacrificial anode protection degree, in %, G1 is the weight loss of the inspection piece without applying the cathodic protection potential, in grams, G2 is the weight loss of the inspection piece with the cathodic protection potential applied, in grams, S1 is the exposed area of ​​the inspection piece without applying the cathodic protection potential, in square centimeters, S2 is the exposed area of ​​the inspection piece with the cathodic protection potential applied, in square centimeters;

[0159] When the sacrificial anode protection degree is greater than or equal to 85%, the sacrificial anode protection degree effectiveness value is 1, and when the sacrificial anode protection degree is less than 85%, the sacrificial anode protection degree effectiveness value is 0;

[0160] S301-4: Calculate the effectiveness of the sacrificial anode protection according to the effectiveness of the sacrificial anode protection parameters, the calculation formula is:

[0161]

[0162] Among them, ε is the effectiveness of sacrificial anode protection, the unit is %, ε1 is the effectiveness of sacrificial anode protection potential, the unit is %, ε2 is the effectiveness of sacrificial anode protection rate, the unit is %, and ε3 is the effectiveness of sacrificial anode protection degree, the unit is %.

[0163] In this embodiment, an impressed current protection parameter is obtained according to the cathode protection parameter, and the validity of the impressed current protection parameter is obtained according to the impressed current protection parameter and the impressed current protection validity is output, wherein the impressed current protection parameter includes the cathode power-on point potential, the impressed current protection potential, the impressed current operation rate, and the impressed current protection degree, and the impressed current protection parameter validity includes the cathode power-on point potential validity, the impressed current protection potential validity, the impressed current operation rate validity, and the impressed current protection degree validity, which can be specifically implemented by the following steps:

[0164] S302-1: Obtain the maximum protection potential of the buried pipeline, determine the cathode power-on point potential, when the cathode power-on point potential is less than the maximum protection potential of the buried pipeline, the cathode power-on point potential validity value is 1, when the cathode power-on point potential is greater than or equal to the maximum protection potential of the buried pipeline, the cathode power-on point potential validity value is 0;

[0165] S302-2: Preset an impressed current protection potential range according to the material of the buried pipeline, determine the impressed current protection potential, when the impressed current protection potential is within the impressed current protection potential range, the impressed current protection potential validity value is 1, when the impressed current protection potential is outside the impressed current protection potential range, the impressed current protection potential validity value is 0;

[0166] S302-3: Calculate the impressed current operation rate according to the cathodic protection parameters, and the calculation formula is:

[0167]

[0168] in, is the impressed current operation rate, in %, t is the effective operation time of the cathodic protection measures in one year, in hours, T is the number of hours in a year, and the value is 8760 hours;

[0169] When the impressed current operation rate is greater than or equal to 98%, the impressed current operation rate validity value is 1, and when the impressed current operation rate is less than 98%, the impressed current operation rate validity value is 0;

[0170] S302-4: Calculate the impressed current protection degree according to the cathodic protection parameters, the calculation formula is:

[0171]

[0172] Wherein, κ is the impressed current protection degree, η is the sacrificial anode protection degree, in %, G1 is the weight loss of the inspection piece without applying the cathodic protection potential, in grams, G2 is the weight loss of the inspection piece with the cathodic protection potential, in grams, S1 is the exposed area of ​​the inspection piece without applying the cathodic protection potential, in square centimeters, S2 is the exposed area of ​​the inspection piece with the cathodic protection potential, in square centimeters;

[0173] When the impressed current protection degree is greater than or equal to 85%, the impressed current protection degree validity value is 1, and when the impressed current protection degree is less than 85%, the impressed current protection degree validity value is 0;

[0174] S302-5: Calculate the impressed current protection effectiveness according to the impressed current protection parameter effectiveness, the calculation formula is:

[0175]

[0176] Among them, φ is the effectiveness of impressed current protection, unit is %, φ1 is the effectiveness of cathode energization point potential, unit is %, φ2 is the effectiveness of impressed current protection potential, unit is %, φ3 is the effectiveness of impressed current operation rate, unit is %, φ4 is the effectiveness of impressed current protection degree, unit is %.

[0177] In this embodiment, a depolarization cycle is preset according to the buried pipeline cathodic protection information, and the cloud server performs a depolarization test on the buried pipeline according to the depolarization cycle and outputs the polarization effectiveness of the buried pipeline to evaluate the long-term effectiveness of the buried pipeline cathodic protection system. The buried pipeline polarization effectiveness includes a buried pipeline polarization high effectiveness and a buried pipeline polarization low effectiveness, which can be specifically implemented by the following steps:

[0178] S601: Obtaining the buried pipeline power potential through a voltmeter, wherein the buried pipeline power potential is the buried pipeline potential when the buried pipeline cathodic protection is operating normally;

[0179] S602: Synchronously interrupting the current of the buried pipeline by a current synchronization interrupter, and obtaining the power-off potential of the buried pipeline by a voltmeter, wherein the power-off potential of the buried pipeline is the potential of the buried pipeline when the current of the buried pipeline is interrupted;

[0180] S603: Keep interrupting the buried pipeline current and record the buried pipeline depolarization potential, where the buried pipeline depolarization potential is the buried pipeline potential when the buried pipeline current is at a stable depolarization level;

[0181] S604: Calculate the cathode polarization attenuation value of the buried pipeline according to the power-off potential of the buried pipeline and the depolarization potential of the buried pipeline, and the calculation formula is:

[0182] △E=|E J -E off |,

[0183] Among them, △E is the cathode polarization attenuation value of the buried pipeline, the unit is millivolt, E J is the depolarization potential of the buried pipeline, in millivolts, Eoff is the power-off potential of the buried pipeline, in millivolts, and |·| is the absolute value;

[0184] S605: Preset a cathode polarization attenuation threshold of the buried pipeline, and obtain the polarization validity of the buried pipeline by comparing the cathode polarization attenuation value of the buried pipeline with the cathode polarization attenuation threshold of the buried pipeline;

[0185] Determine the cathode polarization attenuation value of the buried pipeline, and when the cathode polarization attenuation value of the buried pipeline is greater than or equal to the cathode polarization attenuation threshold of the buried pipeline, output the high effectiveness of the polarization of the buried pipeline;

[0186] When the cathode polarization attenuation value of the buried pipeline is less than the cathode polarization attenuation threshold of the buried pipeline, the low effectiveness of the polarization of the buried pipeline is output.

[0187] An intelligent monitoring device for cathodic protection of buried pipelines based on Beidou precise time and space empowerment, including a data acquisition module, a soil corrosivity evaluation module, a cathodic protection effectiveness evaluation module, a cathodic protection effectiveness control module, a data upload module, and a depolarization module;

[0188] The data acquisition module is used to set up a buried pipeline monitoring point and preset a buried pipeline monitoring cycle, and collect buried pipeline cathodic protection data at the buried pipeline monitoring point according to the buried pipeline monitoring cycle, wherein the buried pipeline cathodic protection data includes Beidou space-time cathodic protection data, soil corrosion parameters, and cathodic protection parameters;

[0189] The soil corrosivity evaluation module is used to construct a soil corrosivity evaluation model according to the soil corrosion parameters and output soil corrosivity results, wherein the soil corrosivity results include soil strong corrosivity results, soil medium corrosivity results, soil weak corrosivity results, and soil weak corrosivity results;

[0190] The cathodic protection effectiveness evaluation module is used for obtaining the cathodic protection parameters within a radius of 500 meters with the buried pipeline monitoring point as the center based on the Beidou spatiotemporal cathodic protection data when the soil corrosivity evaluation model outputs the soil strong corrosivity result and the soil medium corrosivity result, and outputting the cathodic protection effectiveness of the buried pipeline according to the cathodic protection parameters, wherein the cathodic protection effectiveness of the buried pipeline includes the sacrificial anode protection effectiveness and the impressed current protection effectiveness;

[0191] The cathodic protection effectiveness control module is used to preset a buried pipeline cathodic protection effectiveness threshold. When the buried pipeline cathodic protection effectiveness is less than the buried pipeline cathodic protection effectiveness threshold, the Beidou satellite navigation system sends a buried pipeline cathodic protection control signal, and the buried pipeline automatic control system controls the cathodic protection parameters and the soil corrosion parameters until the buried pipeline cathodic protection effectiveness is greater than or equal to the buried pipeline cathodic protection effectiveness threshold.

[0192] The data uploading module is used to upload the buried pipeline cathodic protection information to the cloud server, wherein the buried pipeline cathodic protection information includes a historical buried pipeline cathodic protection data set, the soil corrosivity result, the buried pipeline cathodic protection effectiveness, and the buried pipeline cathodic protection control signal;

[0193] The depolarization module is used to preset a depolarization cycle according to the buried pipeline cathodic protection information. The cloud server performs a depolarization test on the buried pipeline according to the depolarization cycle and outputs the polarization effectiveness of the buried pipeline. The polarization effectiveness of the buried pipeline includes high polarization effectiveness of the buried pipeline and low polarization effectiveness of the buried pipeline.

[0194] The computer storage medium of the embodiment of the present invention may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device.

[0195] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0196] The program code included on the computer readable medium can be transmitted with any appropriate medium, including but not limited to wireless, electric wire, optical cable, RF, etc., or any suitable combination of the above. The computer program code for performing the operation of the present invention can be written in one or more programming languages ​​or their combinations, and the programming language includes object-oriented programming languages-such as Java, Smalltalk, C++, and also includes conventional procedural programming languages-such as "C" language or similar programming languages. The program code can be executed completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on the remote computer, or completely on the remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, using an Internet service provider to connect through the Internet).

[0197] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A method for monitoring cathodic protection of buried pipelines, characterized in that: The implementation of the buried pipeline cathodic protection monitoring method comprises the following steps: Collecting buried pipeline cathodic protection data, including Beidou space-time cathodic protection data, soil corrosion parameters, and cathodic protection parameters; Constructing a soil corrosivity evaluation model according to the soil corrosion parameters and outputting soil corrosivity results, wherein the soil corrosivity results include soil strong corrosivity results, soil medium corrosivity results, soil relatively weak corrosivity results, and soil weak corrosivity results; When the soil strong corrosivity result and the soil medium corrosivity result are output, the cathodic protection parameters are obtained based on the Beidou spatiotemporal cathodic protection data and the buried pipeline cathodic protection effectiveness is output, wherein the buried pipeline cathodic protection effectiveness includes the sacrificial anode protection effectiveness and the impressed current protection effectiveness; Preset a buried pipeline cathodic protection effectiveness threshold, and when the buried pipeline cathodic protection effectiveness is less than the buried pipeline cathodic protection effectiveness threshold, send a buried pipeline cathodic protection control signal to control the cathodic protection parameter and the soil corrosion parameter; Uploading buried pipeline cathodic protection information to a cloud server, wherein the buried pipeline cathodic protection information includes a historical buried pipeline cathodic protection data set, the soil corrosivity result, the buried pipeline cathodic protection effectiveness, and the buried pipeline cathodic protection control signal; A depolarization test is performed according to the buried pipeline cathodic protection information and the buried pipeline polarization effectiveness is output, wherein the buried pipeline polarization effectiveness includes a buried pipeline polarization high effectiveness and a buried pipeline polarization low effectiveness.

2. The buried pipeline cathodic protection monitoring method according to claim 1, characterized in that: The step of constructing a soil corrosivity evaluation model according to the soil corrosion parameters and outputting a soil corrosivity result specifically includes: Obtaining a soil corrosion parameter evaluation score according to the soil corrosion parameter; Calculating a soil corrosivity evaluation score according to the soil corrosion parameter evaluation score and constructing the soil corrosivity evaluation model; The soil corrosivity result is obtained by comparing the soil corrosivity evaluation score with the soil corrosivity evaluation threshold.

3. The buried pipeline cathodic protection monitoring method according to claim 1, characterized in that: When outputting the soil strong corrosiveness result and the soil medium corrosiveness result, obtaining the cathodic protection parameters based on the Beidou spatiotemporal cathodic protection data and outputting the cathodic protection effectiveness of the buried pipeline specifically includes: Obtain sacrificial anode protection parameters according to the cathodic protection parameters, obtain the validity of sacrificial anode protection parameters according to the sacrificial anode protection parameters and output the validity of sacrificial anode protection, wherein the sacrificial anode protection parameters include sacrificial anode protection potential, sacrificial anode protection rate and sacrificial anode protection degree, and the validity of the sacrificial anode protection parameters includes the validity of sacrificial anode protection potential, the validity of sacrificial anode protection rate and the validity of sacrificial anode protection degree; According to the cathode protection parameters, external current protection parameters are obtained, and according to the external current protection parameters, the validity of the external current protection parameters is obtained and the validity of the external current protection is output, the external current protection parameters include the cathode power-on point potential, the external current protection potential, the external current operation rate, and the external current protection degree. The validity of the external current protection parameters includes the validity of the cathode power-on point potential, the validity of the external current protection potential, the validity of the external current operation rate, and the validity of the external current protection degree.

4. The buried pipeline cathodic protection monitoring method according to claim 3 is characterized in that: The obtaining of sacrificial anode protection parameters according to the cathode protection parameters, obtaining the validity of the sacrificial anode protection parameters according to the sacrificial anode protection parameters and outputting the validity of the sacrificial anode protection specifically includes: Preset a sacrificial anode protection potential range, and obtain the effectiveness of the sacrificial anode protection potential by comparing the sacrificial anode protection potential with the sacrificial anode protection potential range; The sacrificial anode protection rate is calculated according to the cathodic protection parameters, and the calculation formula is: Among them, β is the sacrificial anode protection rate, L is the total length of the buried pipeline, and L W The length of buried pipelines was not effectively protected; Obtaining the effectiveness of the sacrificial anode protection rate by determining the sacrificial anode protection rate; The sacrificial anode protection degree is calculated according to the cathodic protection parameters, and the calculation formula is: Wherein, η is the sacrificial anode protection degree, G1 is the weight loss of the inspection piece without applying the cathodic protection potential, G2 is the weight loss of the inspection piece with the cathodic protection potential, S1 is the exposed area of ​​the inspection piece without applying the cathodic protection potential, and S2 is the exposed area of ​​the inspection piece with the cathodic protection potential; Obtaining the effectiveness of the sacrificial anode protection degree by judging the sacrificial anode protection degree; The sacrificial anode protection effectiveness is calculated according to the sacrificial anode protection parameter effectiveness, and the calculation formula is: Among them, ε is the effectiveness of sacrificial anode protection, ε1 is the effectiveness of sacrificial anode protection potential, ε2 is the effectiveness of sacrificial anode protection rate, and ε3 is the effectiveness of sacrificial anode protection degree.

5. The buried pipeline cathodic protection monitoring method according to claim 3, characterized in that: The obtaining of impressed current protection parameters according to the cathode protection parameters, obtaining the validity of impressed current protection parameters according to the impressed current protection parameters and outputting the impressed current protection validity specifically include: Obtaining the effectiveness of the cathode power-on point potential by judging the maximum protection potential of the buried pipeline and the cathode power-on point potential; Obtaining the validity of the impressed current protection potential by determining the impressed current protection potential range and the impressed current protection potential; The impressed current operation rate is calculated according to the cathodic protection parameters, and the calculation formula is: in, is the impressed current operation rate, t is the effective operation time of the cathodic protection measures in one year, and T is the number of hours in a year; Obtaining the validity of the impressed current operation rate by determining the impressed current operation rate; The impressed current protection degree is calculated according to the cathodic protection parameters, and the calculation formula is: Among them, κ is the impressed current protection degree, η is the sacrificial anode protection degree, G1 is the weight loss of the inspection piece without applying the cathodic protection potential, G2 is the weight loss of the inspection piece with the cathodic protection potential, S1 is the exposed area of ​​the inspection piece without applying the cathodic protection potential, S2 is the exposed area of ​​the inspection piece with the cathodic protection potential; Obtaining the validity of the impressed current protection degree by judging the impressed current protection degree; The impressed current protection effectiveness is calculated according to the impressed current protection parameter effectiveness, and the calculation formula is: Among them, φ is the effectiveness of impressed current protection, φ1 is the effectiveness of cathode energization point potential, φ2 is the effectiveness of impressed current protection potential, φ3 is the effectiveness of impressed current operation rate, and φ4 is the effectiveness of impressed current protection degree.

6. The buried pipeline cathodic protection monitoring method according to claim 1, characterized in that: The performing of the depolarization test according to the buried pipeline cathodic protection information and outputting the buried pipeline polarization effectiveness specifically includes: Obtain the electrical potential of the buried pipeline; Synchronously interrupt the buried pipeline current and obtain the buried pipeline power-off potential; Maintaining interruption of the buried pipeline current and recording the buried pipeline depolarization potential; The cathode polarization attenuation value of the buried pipeline is calculated according to the power-off potential of the buried pipeline and the depolarization potential of the buried pipeline. The calculation formula is ΔE=|E J -E off |, where △E is the cathode polarization attenuation value of the buried pipeline, E J is the depolarization potential of the buried pipeline, E off is the power-off potential of the buried pipeline, |·| is the absolute value; A cathode polarization attenuation threshold of the buried pipeline is preset, and the polarization validity of the buried pipeline is obtained by comparing the cathode polarization attenuation value of the buried pipeline with the cathode polarization attenuation threshold of the buried pipeline.

7. A buried pipeline cathodic protection monitoring device using the buried pipeline cathodic protection monitoring method according to claim 1, characterized in that: It includes data acquisition module, soil corrosivity evaluation module, cathodic protection effectiveness evaluation module, cathodic protection effectiveness control module, data upload module and depolarization module; The data acquisition module is used to collect buried pipeline cathodic protection data, and the buried pipeline cathodic protection data includes Beidou space-time cathodic protection data, soil corrosion parameters, and cathodic protection parameters; The soil corrosivity evaluation module is used to construct a soil corrosivity evaluation model according to the soil corrosion parameters and output soil corrosivity results, wherein the soil corrosivity results include soil strong corrosivity results, soil medium corrosivity results, soil weak corrosivity results, and soil weak corrosivity results; The cathodic protection effectiveness evaluation module is used to obtain the cathodic protection parameters and output the effectiveness of the buried pipeline cathodic protection based on the Beidou spatiotemporal cathodic protection data when outputting the soil strong corrosivity result and the soil medium corrosivity result. The effectiveness of the buried pipeline cathodic protection includes the effectiveness of sacrificial anode protection and the effectiveness of impressed current protection. The cathodic protection effectiveness control module is used to preset a buried pipeline cathodic protection effectiveness threshold, and when the buried pipeline cathodic protection effectiveness is less than the buried pipeline cathodic protection effectiveness threshold, send a buried pipeline cathodic protection control signal to control the cathodic protection parameter and the soil corrosion parameter; The data uploading module is used to upload the buried pipeline cathodic protection information to the cloud server, wherein the buried pipeline cathodic protection information includes a historical buried pipeline cathodic protection data set, the soil corrosivity result, the buried pipeline cathodic protection effectiveness, and the buried pipeline cathodic protection control signal; The depolarization module is used to perform a depolarization test according to the buried pipeline cathodic protection information and output the buried pipeline polarization effectiveness, wherein the buried pipeline polarization effectiveness includes a buried pipeline polarization high effectiveness and a buried pipeline polarization low effectiveness.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the buried pipeline cathodic protection monitoring method as described in any one of claims 1-6 is implemented.

9. A storage medium containing computer executable instructions, characterized in that: The computer executable instructions are used to execute the buried pipeline cathodic protection monitoring method as described in any one of claims 1-6 when executed by a computer processor.

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