Buried pipeline corrosion monitoring system based on internet of things

Abstract

The application provides a buried pipeline corrosion monitoring system based on Internet of Things, and relates to the technical field of pipeline corrosion testing. The buried pipeline corrosion monitoring system based on Internet of Things comprises a plurality of sampling devices, each of which is connected with a buried pipeline and at least one sacrificial anode, is used for receiving and processing potential information of the buried pipeline and the at least one sacrificial anode, and is used for obtaining a voltage difference between the buried pipeline and the at least one sacrificial anode which is converted into a digital signal; a plurality of wireless transmission devices, each of which is connected with one of the sampling devices and is used for receiving the voltage difference of the digital signal; and a cloud platform server which is wirelessly connected with the plurality of wireless transmission devices, is used for receiving the voltage difference of the plurality of digital signals, and is used for analyzing and processing the voltage difference of the digital signal corresponding to each of the wireless transmission devices to obtain a corrosion condition of the buried pipeline corresponding to the wireless transmission device.

Description

Technical Field

[0001] This application relates to the field of pipeline corrosion testing technology, and in particular to an Internet of Things-based buried pipeline corrosion monitoring system. Background Technology

[0002] Currently, pipeline transportation is the most economical means of fluid medium transmission in the petroleum industry. However, pipelines will corrode over a long period of use, which will affect the reliability of pipeline transportation. At present, buried pipelines mainly use sacrificial anodes to protect them. However, long-term corrosion will continue to corrode the pipeline after the sacrificial anodes have completely corroded, thus affecting pipeline transportation. Therefore, it is necessary to carry out intelligent monitoring of the pipeline to determine whether the corrosion protection status of the pipeline is normal.

[0003] In existing technologies, pipeline potential information is collected, and a lower-level hardware system for online monitoring of cathodic protection is developed using a microcontroller, GPS module, and GPRS module. A PC is used as the human-computer interaction device for the cathodic protection potential monitoring system to transmit pipeline potential information. However, due to the wide distribution of buried long-distance pipelines, the fact that the equipment is mostly located in remote areas, the weak mobile signal quality in some areas, and the large number of cathodic protection test piles, the number of test piles that the SCADA platform can access in both upper-level and lower-level modes is limited. Therefore, only a small number of pipelines can be tested, which cannot meet the problem of full coverage of pipeline corrosion monitoring over a large area.

[0004] Therefore, how to provide a testing device that can meet the requirements of corrosion monitoring of pipelines with large-scale transmission has become an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this application is to provide an Internet of Things-based buried pipeline corrosion monitoring system.

[0006] To address the aforementioned technical problems, the embodiments of this application provide the following technical solutions: The first aspect of this application provides an Internet of Things-based buried pipeline corrosion monitoring system, comprising: Multiple sampling devices, multiple wireless transmission devices, and a cloud platform server; Each of the sampling devices is connected to a buried pipeline and at least one sacrificial anode, and is used to receive and process the potential information of the buried pipeline and at least one sacrificial anode to obtain the voltage difference between the buried pipeline and at least one sacrificial anode converted into a digital signal; each of the wireless transmission devices is connected to one of the sampling devices and is used to receive the voltage difference of the digital signal; the cloud platform server is wirelessly connected to multiple wireless transmission devices and is used to receive the voltage difference of multiple digital signals, and to analyze and process the voltage difference of the digital signal corresponding to each wireless transmission device to obtain the corrosion status of the buried pipeline corresponding to the wireless transmission device.

[0007] In some modified embodiments of the first aspect of this application, the sampling device includes: A sampling component is connected to the buried pipeline and at least one of the sacrificial anodes to receive potential information from the buried pipeline and at least one of the sacrificial anodes respectively, and to obtain the voltage difference between the buried pipeline and the sacrificial anodes based on the potential information from the buried pipeline and at least one of the sacrificial anodes. A control component, connected to the sampling component, receives the voltage difference and converts the voltage difference into a digital signal voltage difference. The control component is also connected to the wireless transmission device to transmit the digital signal voltage difference to the wireless transmission device.

[0008] Some modified embodiments of the first aspect of this application also include: Multiple power supplies are provided, each of which is electrically connected to one of the wireless transmission devices and the control component, the control component being electrically connected to the sampling component, and the power supplies being used to power the wireless transmission devices, the control component, and the sampling component.

[0009] In some modified embodiments of the first aspect of this application, the power supply is electrically connected to the wireless transmission device via a first electrical connection line and a second electrical connection line, the wireless transmission device is connected to the control component via a third electrical connection line, the power supply is connected to the control component via a fourth electrical connection line, and the control component is connected to the sampling component via a fifth electrical connection line and a sixth electrical connection line.

[0010] In some modified embodiments of the first aspect of this application, the wireless transmission device is further connected to the power supply via a seventh electrical connection line, and the interface where the seventh electrical connection line is located or the interface where the first electrical connection line is located in the wireless transmission device is connected to the third electrical connection line. The wireless transmission device includes a switch connected to either the first electrical connection line or the seventh electrical connection line, such that when the switch is turned on, one end of the control component can be connected to a power source via the wireless transmission device, so that the power source supplies power to the control component and the sampling component.

[0011] In some modified embodiments of the first aspect of this application, the sampling device further includes: The test pile includes a body, a first transmission line, and at least one second transmission line. Part of the first transmission line and at least one second transmission line are disposed inside the body. One end of the first transmission line is connected to the buried pipeline and the other end is connected to the sampling component. One end of the second transmission line is connected to the sacrificial anode and the other end is connected to the sampling component, so as to detect and receive the potential information of the buried pipeline and the sacrificial anode.

[0012] In some modified embodiments of the first aspect of this application, the wireless transmission device further includes: An antenna is provided for wirelessly connecting to the cloud platform server to transmit the voltage difference of the digital signal received by the wireless transmission device to the cloud platform server, and to transmit the control signal sent by the cloud platform server to the wireless transmission device through the antenna to activate the switch.

[0013] Some modified embodiments of the first aspect of this application also include: A signal transceiver device is provided, wherein the signal transceiver device is located within a preset range of at least one of the wireless transmission devices, the signal transceiver device is wirelessly connected to at least one of the wireless transmission devices, and the signal transceiver device is wirelessly connected to the cloud platform server. The wireless transmission device further includes a short-range wireless transmission component, which is wirelessly connected to the signal transceiver when there is no network signal, and is used to send the voltage difference of the digital signal to the signal transceiver. The signal transceiver is used to send the voltage difference of the digital signal to the cloud platform server.

[0014] Some modified embodiments of the first aspect of this application also include: An electronic device is wirelessly connected to the cloud platform server to receive information on pipeline corrosion sent by the cloud platform server.

[0015] In some modified embodiments of the first aspect of this application, the cloud platform server is provided with status information corresponding to each of the wireless transmission devices and the sampling devices. The status information includes at least the location information of the buried pipeline and the IP information of each wireless transmission device, so as to correspond the corrosion status of the buried pipeline with the location of the buried pipeline.

[0016] Compared to existing technologies, the first aspect of this application provides an IoT-based buried pipeline corrosion monitoring system, which includes multiple sampling devices, multiple wireless transmission devices, and a cloud platform server. Each sampling device is used to collect data on the condition of a buried pipeline within a certain range. Multiple sampling devices can acquire data on the entire buried pipeline. Each sampling device is connected to a corresponding wireless transmission device, and all wireless transmission devices are wirelessly connected to the cloud server. This allows the system to transmit the collected data on the entire buried pipeline, composed of multiple segments, to the cloud server. At least one sacrificial anode is connected to the buried pipeline, transforming the original corrosion of the buried pipeline into corrosion of the sacrificial anode, thus protecting the buried pipeline and preventing corrosion. After a relatively long period, the sacrificial anode is completely corroded, at which point corrosion of the buried pipeline begins. Each sampling device is connected to the buried pipeline and at least one sacrificial anode, thereby obtaining... The system collects potential information from buried pipelines and sacrificial anodes, where the potential information is a voltage value. Based on this information, the voltage difference between the buried pipeline and the sacrificial anode is calculated and converted into a digital signal for transmission and subsequent processing and analysis. Each sampling device is connected to a wireless transmission device. The sampling device transmits the digital signal voltage difference to the corresponding wireless transmission device, which then wirelessly transmits it to a cloud platform server. The cloud platform server receives the digital signal voltage differences from multiple buried pipeline segments. If the digital signal voltage difference is greater than a preset voltage difference, the corresponding section of the buried pipeline is intact; if the digital signal voltage difference is less than the preset voltage difference, the corresponding section of the buried pipeline is corroded. This allows the system to determine the corrosion status of multiple buried pipeline segments based on the voltage differences.

[0017] The IoT-based buried pipeline corrosion monitoring system provided in this application involves multiple wireless transmission devices wirelessly connected to a cloud server. These devices transmit data collected from the entire buried pipeline, consisting of multiple segments, to the cloud server. By leveraging industrial IoT technology, the system interconnects the test data from the sampling devices with the cloud platform server, enabling IoT-based buried pipeline corrosion monitoring. Compared to existing SCADA data acquisition and monitoring systems, this system solves the limitation on the number of sampling devices that can be connected to SCADA systems, significantly increasing the number of connected sampling devices. This ensures full coverage of buried pipeline corrosion monitoring and allows for timely understanding of the corrosion status of the buried pipeline. Attached Figure Description

[0018] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein: Figure 1 A partial structural schematic diagram of an Internet of Things-based buried pipeline corrosion monitoring system provided in this application embodiment; Figure 2 A flowchart illustrating an IoT-based buried pipeline corrosion monitoring system provided in this application embodiment; Figure 3 A schematic diagram of a buried pipeline, sacrificial anode, and test pile structure provided for an embodiment of this application; Explanation of icon numbers: The IoT-based buried pipeline corrosion monitoring system includes: 1. Sampling device 11, sampling component 111, control component 112, wireless transmission device 12, antenna 121, cloud platform server 13, power supply 14, first electrical connection line 141, second electrical connection line 142, third electrical connection line 143, fourth electrical connection line 144, fifth electrical connection line 145, sixth electrical connection line 146, seventh electrical connection line 147, test pile 15, body 151, first transmission line 152, second transmission line 153, switch 16, electronic equipment 17, buried pipeline 2, and sacrificial anode 3. Detailed Implementation

[0019] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0020] like Figures 1 to 3 As shown, this application provides an Internet of Things-based monitoring system 1 for buried pipelines 2, comprising: Multiple sampling devices 11, each of which is connected to a buried pipeline 2 and at least one sacrificial anode 3, are used to receive and process the potential information of the buried pipeline 2 and the sacrificial anode 3 to obtain the voltage difference between the buried pipeline 2 and at least one sacrificial anode 3 converted into a digital signal. Multiple wireless transmission devices 12, each of which is connected to one of the sampling devices 11, are used to receive the voltage difference of the digital signal; A cloud platform server 13 is wirelessly connected to multiple wireless transmission devices 12 to receive the voltage difference of multiple digital signals and analyze the voltage difference of the digital signals corresponding to each wireless transmission device 12 to obtain the corrosion status of the buried pipeline 2 corresponding to the wireless transmission device 12.

[0021] This application provides an IoT-based monitoring system 1 for buried pipelines 2, comprising multiple sampling devices 11, multiple wireless transmission devices 12, and a cloud platform server 13. Each sampling device 11 is used to collect data on the buried pipeline 2 within a certain range. The buried pipeline 2 is a steel pipe. Multiple sampling devices 11 can acquire data on the entire buried pipeline 2. Each sampling device 11 is connected to a corresponding wireless transmission device 12. All wireless transmission devices 12 are wirelessly connected to the cloud server, thereby transmitting the collected data on the entire buried pipeline 2, composed of multiple segments, to the cloud server. At least one sacrificial anode 3 is connected to the buried pipeline 2, transforming the corrosion of the buried pipeline 2 into corrosion of the sacrificial anode 3, thus protecting the buried pipeline 2 and preventing corrosion. After a relatively long period of time, the sacrificial anode 3 is completely corroded, at which point corrosion of the buried pipeline 2 begins. Each sampling device 11 is connected to the buried pipeline 2 and at least one sacrificial anode 3. This process obtains the potential information of the buried pipeline 2 and the sacrificial anode 3, where the potential information is a voltage value. Based on the potential information of the buried pipeline 2 and the sacrificial anode 3, the voltage difference between the buried pipeline 2 and the sacrificial anode 3 is obtained and converted into a digital signal voltage difference for transmission and subsequent processing and analysis. A wireless transmission device 12 is connected near each sampling device 11. The digital signal voltage difference is transmitted to the corresponding wireless transmission device 12 through the sampling device 11. The wireless transmission device 12 then wirelessly transmits the digital signal voltage difference to the cloud platform server 13. Thus, the cloud platform server 13 can receive the digital signal voltage difference of multiple buried pipeline 2 segments. If the digital signal voltage difference is greater than the preset voltage difference, the corresponding part of the buried pipeline 2 is intact. If the digital signal voltage difference is less than the preset voltage difference, the corresponding part of the buried pipeline 2 is corroded. Thus, the corrosion status of multiple buried pipeline 2 segments can be determined based on the voltage difference.

[0022] The wireless transmission device 12 and the cloud platform server 13 transmit data via 4G or 5G. Multiple sacrificial anodes 3 are connected to the buried pipeline 2 within a certain range, and the multiple sacrificial anodes 3 are set at equal intervals, thereby improving the reliability of the protection of the buried pipeline 2.

[0023] The buried pipeline 2 monitoring system 1 based on the Internet of Things (IoT) provided in this application has multiple wireless transmission devices 12 that are wirelessly connected to a cloud server to send the collected data on the entire buried pipeline 2, which consists of multiple segments of buried pipeline 2, to the cloud server. By leveraging industrial IoT technology, the test data of the sampling devices 11 are interconnected with the cloud platform server 13, breaking through the traditional industrial data monitoring mode. The number of sampling devices 11 connected to the Internet is increased from tens to tens of thousands, expanding the system node capacity and eliminating the problem of information silos in the data system of traditional SCADA cathodic protection systems. Compared with the existing SCADA data acquisition and monitoring systems, this system solves the problem of the limited number of sampling devices 11 that can be connected to the current SCADA data acquisition and monitoring system, greatly increasing the number of sampling devices 11 that can be connected, thereby ensuring full coverage of buried pipeline corrosion monitoring.

[0024] like Figure 1 As shown in this embodiment, the sampling device 11 includes: A sampling component 111 is connected to the buried pipeline 2 and at least one of the sacrificial anodes 3 to receive the potential information of the buried pipeline 2 and at least one of the sacrificial anodes 3 respectively, and to obtain the voltage difference between the buried pipeline 2 and the sacrificial anode 3 based on the potential information of the buried pipeline 2 and at least one of the sacrificial anodes 3. A control component 112 is connected to the sampling component 111, receives the voltage difference, and converts the voltage difference into a digital signal voltage difference. The control component 112 is also connected to the wireless transmission device 12 to transmit the digital signal voltage difference to the wireless transmission device 12.

[0025] In this embodiment, the sampling device 11 includes a sampling component 111 and a control component 112. The sampling component 111 is connected to the buried pipeline 2 and at least one sacrificial anode 3, thereby obtaining the potential information of the buried pipeline 2 and at least one sacrificial anode 3 respectively. A section of the buried pipeline 2 can be connected to multiple sacrificial anodes 3, thereby providing reliability of the cathodic protection system. The sampling component 111 is connected to the section of the buried pipeline 2 and also to two sacrificial anodes 3 at both ends of the buried pipeline 2, thereby calculating the voltage difference between the two sacrificial anodes 3 and the buried pipeline 2 respectively, and transmitting the smaller voltage difference to the control component 112. When one of the voltage differences is less than a preset voltage difference, the sampling component 111 sends a first alarm message to the control component 112 while transmitting the minimum voltage difference. When both voltage differences are less than the preset voltage difference, the sampling component 111 sends a second alarm message to the control component 112 while transmitting the minimum voltage difference. If both voltage differences are greater than the preset voltage difference, the sampling component 111 only sends the minimum voltage difference to the control component 112. The control device receives the voltage difference or receives the voltage difference along with the first alarm message and the second alarm message, and converts the voltage difference into a digital signal for subsequent transmission. The control component 112 connects to the wireless transmission device 12 and transmits the voltage difference to the wireless transmission device 12. The wireless transmission device 12 then transmits the digital signal voltage difference wirelessly to the cloud platform server 13. Through the Internet of Things connection, the number of sampling devices 11 connected is greatly increased, thereby ensuring full coverage of buried pipeline corrosion monitoring.

[0026] Preferably, the preset voltage difference is -0.85V. When the voltage difference is greater than -0.85V, the sacrificial anode 3 normally protects the buried pipeline 2. However, when the voltage difference is less than -0.85V, the sacrificial anode 3 fails to protect the buried pipeline 2, and the buried pipeline 2 corrodes, requiring timely treatment.

[0027] Optionally, when sampling component 111 acquires voltage, the input signal type is voltage signal, the channel range is -10V~10V, and control component 112 converts the voltage difference into a digital signal voltage difference through A / D conversion and stores the voltage difference in control component 112.

[0028] like Figure 1 As shown in the embodiments of this application, it also includes: Multiple power sources 14 are provided, each power source 14 being electrically connected to one of the wireless transmission devices 12 and the control component 112, the control component 112 being electrically connected to the sampling component 111, and the power source 14 being used to supply power to the wireless transmission device 12, the control component 112 and the sampling component 111.

[0029] In this embodiment, the IoT-based buried pipeline 2 monitoring system 1 also includes multiple power supplies 14. Each power supply 14 is correspondingly set in a wireless transmission device 12 and a sampling device 11. The power supply 14 is located near the wireless transmission device 12 and the sampling device 11. The power supply 14 is electrically connected to the wireless transmission device 12 to supply power to the wireless transmission device 12, thereby enabling the wireless transmission device 12 to transmit the voltage difference of the received digital signal. The power supply 14 is also electrically connected to the control component 112, and the power supply 14 is also electrically connected to the sampling component 111 through the control component 112 to supply power to the control component 112 and the sampling component 111. This enables the sampling component 111 to collect the potential information of the buried pipeline 2 and at least one sacrificial anode 3, calculate the voltage difference, and transmit the minimum voltage difference to the control component 112. The control component 112 can also realize the conversion and transmission of voltage difference. Since the overall system power of the sampling device 11 is relatively small, the power lithium battery can maintain power supply for a long time.

[0030] Preferably, the power source 14 is a 24VDC lithium battery with a capacity of 100Ah. The lithium battery needs to be charged and replaced periodically. Powering the device with a lithium battery reduces costs compared to other power supply methods such as photovoltaic power generation.

[0031] In this embodiment, the power supply 14 is electrically connected to the wireless transmission device 12 via a first electrical connection line 141 and a second electrical connection line 142. The wireless transmission device 12 is connected to the control component 112 via a third electrical connection line 143. The power supply 14 is connected to the control component 112 via a fourth electrical connection line 144. The control component 112 is connected to the sampling component 111 via a fifth electrical connection line 145 and a sixth electrical connection line 146.

[0032] In this embodiment, the positive terminal of the power supply 14 is connected to the positive interface of the wireless transmission device 12 via a first electrical connection line 141, and the negative terminal of the power supply 14 is connected to the negative interface of the wireless transmission device 12 via a second electrical connection line 142, thereby powering the wireless transmission device 12. The positive interface of the wireless transmission device 12 is also connected to the positive interface of the control component 112 via a third electrical connection line 143, and the negative terminal of the power supply 14 is connected to the negative interface of the control component 112 via a fourth electrical connection line 144, thereby allowing the positive interface of the control component 112 to... The wireless transmission device 12 is connected to the positive terminal of the power supply 14, and the negative terminal of the control component 112 is directly connected to the negative terminal of the power supply 14, thereby enabling the power supply 14 to supply power to the control component 112. The positive terminal of the control component 112 is connected to the positive terminal of the sampling component 111 through the fifth electrical connection line 145, and the negative terminal of the control component 112 is connected to the negative terminal of the sampling component 111 through the sixth electrical connection line 146. Thus, through the connection between the control component 112 and the linear power supply 14 and the sampling component 111, power is supplied to the sampling component 111.

[0033] like Figure 1 As shown in the embodiment of this application, the wireless transmission device 12 is also connected to the power supply 14 via a seventh electrical connection line 147, and the interface where the seventh electrical connection line 147 is located or the interface where the first electrical connection line is located in the wireless transmission device 12 is connected to the third electrical connection line. The wireless transmission device 12 includes a switch 16, which is connected to the first electrical connection line or the seventh electrical connection line 147, so that when the switch 16 is turned on, one end of the control component 112 can be connected to the power supply 14 through the wireless transmission device 12, so that the power supply 14 can supply power to the control component 112 and the sampling component 111.

[0034] In this embodiment, the negative terminal of the control component 112 is connected to the negative terminal of the power supply 14. The wireless transmission device 12 is also connected to the positive terminal of the power supply 14 via a sixth electrical connection line 146. When the wireless transmission device 12 is electrically connected to the control component 112 via a third electrical connection line 143, the third electrical connection line connects to either the interface of the first electrical connection line or the interface of the seventh electrical connection line 147 in the wireless transmission device 12. Thus, the positive terminal of the control component 112 is connected to the positive terminal of the power supply 14 via the first electrical connection line or the seventh electrical connection line 147 of the wireless transmission device 12. Consequently, the positive and negative terminals of the power supply 14 are connected to the control component 112. The wireless transmission device 12 includes a switch 16, which is connected to the first electrical connection line. Alternatively, the seventh electrical connection line 147 can be connected so that when the switch 16 is closed, the positive terminal of the power supply 14 connected to the wireless transmission device 12 cannot be disconnected from the control component 112, thus the control component 112 and the sampling component 111 cannot receive power, and the sampling component 111 cannot perform sampling. When the switch 16 is opened, the positive terminal of the power supply 14 connected to the wireless transmission device 12 is connected to the control component 112, so the power supply 14 can supply power to the control component 112, and then supply power to the sampling component 111 connected to the control component 112. When power is supplied to the sampling component 111 and the control component 112, the sampling component 111 can collect, analyze and convert potential information of the buried pipeline 2 and at least one sacrificial anode 3. Corrosion of buried pipeline 2 is a slow process, so the frequency requirement for potential information acquisition is low. Therefore, by setting switch 16, it is only necessary to open switch 16 once at a preset interval. When switch 16 is closed, power supply 14 only supplies power to wireless transmission device 12, resulting in low power consumption. When switch 16 is opened after the preset interval, power supply 14 consumes power to supply power to control component 112 and sampling component 111. Thus, by setting switch 16, the power consumption of the equipment is reduced, and power supply 14 does not need to be replaced frequently, which is more beneficial to the application.

[0035] Preferably, the preset interval is 5 hours.

[0036] Preferably, the switch 16 is connected to the seventh electrical connection line 147. The other end of the seventh electrical connection line 147 can be connected to the power supply 14, or in other cases, to other power supplies 14 or devices, thus broadening the application range.

[0037] like Figure 1 and Figure 3As shown in the embodiment of this application, the sampling device 11 further includes a test pile 15, which includes a body 151, a first transmission line 152, and at least one second transmission line 153. Part of the first transmission line 152 and at least one second transmission line 153 are disposed inside the body 151. One end of the first transmission line 152 is connected to the buried pipeline 2, and the other end is connected to the sampling component 111. One end of the second transmission line 153 is connected to the sacrificial anode 3, and the other end is connected to the sampling component 111, so as to detect and receive the potential information of the buried pipeline 2 and the sacrificial anode 3.

[0038] In this embodiment, the sampling device 11 includes a test pile 15, which includes a body 151, a first transmission line 152, and at least one second transmission line 153. The body 151 is disposed on the ground surface, while the buried pipeline 2 and the sacrificial anode 3 are buried in the ground. The body 151 serves as a shell for a portion of the first transmission line 152 and the second transmission line 153 that are led up from the ground, providing acute protection for a portion of the first transmission line 152 and the second transmission line 153. This allows for the detection and reception of potential information from the buried pipeline 2 and the sacrificial anode 3, ensuring that the signal passing through the first transmission line 152 and the second transmission line 153 is received. 3. The sampling device 11 is connected to the buried pipeline 2 and the sacrificial anode 3. One end of the first transmission line 152 extends underground and is connected to the buried pipeline 2, and the other end is connected to the sampling component 111 on the ground surface. Thus, the sampling device 11 can detect and receive the potential information of the buried pipeline 2. One end of the second transmission line 153 extends underground and is connected to a sacrificial anode 3, and the other end is connected to the sampling device 11 on the ground surface. Thus, the sampling device 11 can detect and receive the potential information of the sacrificial anode 3, thereby obtaining the potential information of the buried pipeline 2 and the sacrificial anode 3, which facilitates the subsequent calculation of the voltage difference.

[0039] Preferably, there are two second transmission lines 153, which are used to connect the two sacrificial anodes 3 at both ends of the buried pipeline 2, so as to obtain the potential information of the two sacrificial anodes 3 and thus obtain the two voltage differences.

[0040] like Figure 1 As shown in this embodiment, the wireless transmission device 12 further includes: Antenna 121 is used to wirelessly connect with the cloud platform server 13 to transmit the voltage difference of the digital signal received by the wireless transmission device 12 to the cloud platform server 13, and to transmit the control signal sent by the cloud platform server 13 to the wireless transmission device 12 through the antenna 121 to activate the switch 16.

[0041] In this embodiment, the wireless transmission device 12 also includes an antenna 121. The antenna 121 enables the wireless transmission device 12 to transmit signals to the cloud platform server 13 via 4G or 5G. Thus, the system transmits the voltage difference data collected by each sampling device 11 to the cloud platform server 13 through Internet of Things technology, thereby greatly increasing the number of sampling devices 11 connected to the system and achieving full coverage of the buried pipeline 2 test. By utilizing the big data storage, management, and analysis capabilities of the cloud platform server 13, a dedicated corrosion system can be established to achieve functions such as corrosion early warning and pipeline life prediction, and to complete massive data mining. The cloud platform server 13 also transmits the signal of turning on the control switch 16 to the wireless transmission device 12. The antenna 121 in the wireless transmission device 12 receives the control signal. When the control signal is received, the switch 16 turns on, so that the power supply 14 supplies power to the control component 112 and the sampling component 111 to test and collect the potential information of the buried pipeline 2 and the sacrificial anode 3, thereby reducing power consumption. After the sampling component 111 and the control component 112 collect and convert the potential information of the buried pipeline 2 and the sacrificial anode 3, the voltage difference of the converted digital signal, or the voltage difference of the converted digital signal and the first alarm information or the second alarm information are transmitted to the cloud platform server 13 through the antenna 121.

[0042] In this embodiment of the application, it also includes: A signal transceiver device is provided, which is located within a preset range of at least one of the wireless transmission devices 12. The signal transceiver device is wirelessly connected to at least one of the wireless transmission devices 12 and wirelessly connected to the cloud platform server 13. The wireless transmission device 12 further includes a short-range wireless transmission component, which is wirelessly connected to the signal transceiver when there is no network signal, and is used to send the voltage difference of the digital signal to the signal transceiver. The signal transceiver is used to send the voltage difference of the digital signal to the cloud platform server 13.

[0043] In this embodiment, the IoT-based buried pipeline 2 monitoring system 1 also includes a signal transceiver device. At least one wireless transmission device 12 is preset within a preset range of the signal transceiver device. The wireless transmission device 12 also includes a short-range wireless transmission component. When the buried pipeline 2 is located in a remote area with weak signal, and the voltage difference cannot be wirelessly transmitted to the cloud platform server 13 via the wireless transmission device 12, the voltage difference is first transmitted to the signal transceiver device via the short-range wireless transmission component. The signal transceiver device and the short-range wireless transmission component can wirelessly transmit within the preset range even when there is no signal. The location of the signal transceiver device can wirelessly connect to the cloud platform server 13, so that the signal transceiver device can then wirelessly transmit the voltage difference of the digital signal to the cloud platform server 13, thereby realizing the transmission of the voltage difference of the digital signal. Through the hybrid mode of the signal transceiver device and the short-range wireless transmission component of the wireless transmission device 12, the problem of poor signal in remote areas is solved.

[0044] Optionally, each wireless transmission device 12 may be provided with a corresponding signal transceiver; or multiple wireless transmission devices 12 may be provided with a corresponding signal transceiver.

[0045] like Figure 2 As shown in the embodiments of this application, it also includes: Electronic device 17 is wirelessly connected to cloud platform server 13 to receive information on pipeline corrosion sent by cloud platform server 13.

[0046] In this embodiment, the IoT-based buried pipeline 2 monitoring system 1 also includes an electronic device 17, which is wirelessly connected to a cloud platform server 13. This allows the electronic device 17 to receive information from the cloud platform server 13, such as the pipeline corrosion status and alarm information obtained based on the voltage difference, as well as information on the pipeline lifespan prediction. The sampling device 11 is combined with artificial intelligence and machine learning to build a corrosion pipeline monitoring system through data mining, enabling the prediction of the buried pipeline lifespan and early warning of dangerous points. Users can then view the pipeline status on the electronic device 17, making it convenient to understand the pipeline information in a timely manner.

[0047] Preferably, the electronic device 17 can be a mobile phone, computer, or smartwatch, etc.

[0048] In this embodiment of the application, the cloud platform server 13 is provided with status information corresponding to each of the wireless transmission devices 12 and the sampling devices 11. The status information includes at least the location information of the buried pipeline 2 and the IP information of each wireless transmission device 12, so as to correspond the corrosion status of the buried pipeline 2 with the location of the buried pipeline 2.

[0049] In this embodiment, the voltage difference of digital signals collected by multiple sampling devices 11 is transmitted to the cloud platform server 13 using the IoT MQTT (Message Queuing Telemetry Transport) protocol. An account is applied for on the cloud platform server 13, and a new intelligent cathodic protection detection system project is created. Then, using the configuration software provided by the wireless transmission device 12 manufacturer, the IP address and transmission method of the wireless transmission device 12 are configured, assigning different IP addresses to each sampling device 11 and wireless transmission device 12. The cloud platform server 13 stores, displays, and alarms the potential information of all buried pipelines 2. A client application for the electronic device 17 is written on the cloud platform server 13. The client of the electronic device 17 subscribes to the potential information of the cloud platform server 13. Using the WebGIS geographic information function provided by the cloud platform, the location information of each buried pipeline 2 is displayed on a map. Alarm information is configured. When cathodic protection fails, the cloud platform server 13 automatically sends SMS messages and makes phone calls to designated personnel and publishes the cathodic protection IoT application. Users can monitor the operating status of the cathodic protection system in real time on the electronic device 17.

[0050] In this embodiment, the sampling device 11 is a PLC structure, the sampling component 111 is an EM AE analog input module, the control component 112 is an S7-200 smart ST20, and the wireless transmission device 12 is a 5G cloud gateway. When the 5G cloud gateway transmits data with the control component 112, it connects to the S7-200 smart ST20 through the 485 interface of the 5G cloud gateway. Terminal A of the 485 interface is connected to serial port 3 of the S7-200 smart ST20, and terminal B of the 485 interface is connected to serial port 8 of the S7-200 smart ST20. The configuration of the 5G cloud gateway corresponds to the device type and communication parameters of the connected PLC. Among them, the potential information, variable ID, variable address, and data type are floating point types.

[0051] The first aspect of this application provides an IoT-based buried pipeline corrosion monitoring system, comprising multiple sampling devices, multiple wireless transmission devices, a cloud platform server, and electronic equipment. Each sampling device collects data on the condition of a buried pipeline within a specific range. Multiple sampling devices can acquire data on the entire buried pipeline. Each sampling device is connected to a corresponding wireless transmission device, and all wireless transmission devices are wirelessly connected to the cloud server. This allows the system to transmit the collected data on the entire buried pipeline, consisting of multiple segments, to the cloud server. At least one sacrificial anode is connected to the buried pipeline, transforming the original corrosion of the buried pipeline into corrosion of the sacrificial anode, thus protecting the buried pipeline and preventing corrosion. After a considerable period, the sacrificial anode is completely corroded, at which point corrosion of the buried pipeline begins. Each sampling device... The device is connected to a buried pipeline and at least one sacrificial anode to obtain the potential information of the buried pipeline and the sacrificial anode, where the potential information is a voltage value. Based on the potential information of the buried pipeline and the sacrificial anode, the voltage difference between the buried pipeline and the sacrificial anode is obtained and converted into a digital voltage difference signal. An alarm signal is generated based on the voltage difference. A wireless transmission device is connected near each sampling device. The sampling devices are connected to the wireless transmission devices, and multiple wireless transmission devices are connected to a cloud platform server to transmit the digital voltage difference or alarm signal to the cloud platform server. Based on the digital voltage difference or alarm signal, the corrosion situation is predicted and early warning is given, and the protection failure time of the buried pipeline is determined. The above information is sent to electronic devices for easy viewing and processing at any time.

[0052] The IoT-based buried pipeline corrosion monitoring system provided in this application has multiple wireless transmission devices that are wirelessly connected to a cloud server to send the collected data on the entire buried pipeline, which consists of multiple segments, to the cloud server. By leveraging industrial IoT technology, the system interconnects the test data from the sampling devices with the cloud platform server, thus realizing an IoT-based buried pipeline corrosion monitoring system. This solves the current problem of limited data acquisition access, greatly increases the number of sampling devices that can be accessed, and ensures full coverage of buried pipeline corrosion monitoring.

[0053] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A buried pipeline corrosion monitoring system based on the Internet of Things, characterized in that, include: Multiple sampling devices are provided, each including a sampling component and a control component. The sampling component is connected to a buried pipeline and at least one sacrificial anode to receive potential information from the buried pipeline and at least one sacrificial anode, and to obtain the voltage difference between the buried pipeline and the sacrificial anode based on the potential information. The control component is connected to the sampling component, receives the voltage difference, and converts the voltage difference into a digital signal. At least one sacrificial anode is connected to the buried pipeline to convert the corrosion of the buried pipeline into corrosion of the sacrificial anode, thereby protecting the buried pipeline and preventing corrosion. Each of the sampling devices is used to collect information about the buried pipeline within a certain range, wherein the buried pipeline is a steel pipe, and multiple sampling devices can acquire information about the entire buried pipeline. Multiple wireless transmission devices, each of which is connected to one of the sampling devices, for receiving the voltage difference of the digital signal; A cloud platform server is wirelessly connected to multiple wireless transmission devices to receive voltage differences of multiple digital signals and analyze and process the voltage differences of digital signals corresponding to each wireless transmission device to obtain the corrosion status of the buried pipeline corresponding to the wireless transmission device. The control component is also connected to the wireless transmission device to transmit the voltage difference of the digital signal to the wireless transmission device. Multiple power supplies are provided, each of which is electrically connected to one of the wireless transmission devices and the control component, the control component being electrically connected to the sampling component, and the power supplies being used to power the wireless transmission devices, the control component, and the sampling component. The power supply is electrically connected to the wireless transmission device via a first electrical connection line and a second electrical connection line. The wireless transmission device is connected to the control component via a third electrical connection line. The power supply is connected to the control component via a fourth electrical connection line. The control component is connected to the sampling component via a fifth electrical connection line and a sixth electrical connection line. The wireless transmission device is also connected to the power supply via a seventh electrical connection line, and the interface where the seventh electrical connection line is located or the interface where the first electrical connection line is located in the wireless transmission device is connected to the third electrical connection line. The wireless transmission device includes a switch connected to the first electrical connection line or the seventh electrical connection line, such that when the switch is turned on, one end of the control component can be connected to a power source via the wireless transmission device, so that the power source supplies power to the control component and the sampling component. A signal transceiver device is provided, wherein the signal transceiver device is located within a preset range of at least one of the wireless transmission devices, the signal transceiver device is wirelessly connected to at least one of the wireless transmission devices, and the signal transceiver device is wirelessly connected to the cloud platform server. The wireless transmission device further includes a short-range wireless transmission component, which is wirelessly connected to the signal transceiver when there is no network signal, and is used to send the voltage difference of the digital signal to the signal transceiver. The signal transceiver is used to send the voltage difference of the digital signal to the cloud platform server.

2. The buried pipeline corrosion monitoring system based on the Internet of Things according to claim 1, characterized in that, The sampling device also includes: The test pile includes a body, a first transmission line, and at least one second transmission line. Part of the first transmission line and at least one second transmission line are disposed inside the body. One end of the first transmission line is connected to the buried pipeline and the other end is connected to the sampling component. One end of the second transmission line is connected to the sacrificial anode and the other end is connected to the sampling component, so as to detect and receive the potential information of the buried pipeline and the sacrificial anode.

3. The buried pipeline corrosion monitoring system based on the Internet of Things according to claim 1, characterized in that, The wireless transmission device also includes: An antenna is provided for wirelessly connecting to the cloud platform server to transmit the voltage difference of the digital signal received by the wireless transmission device to the cloud platform server, and to transmit the control signal sent by the cloud platform server to the wireless transmission device through the antenna to activate the switch.

4. The Internet of Things-based buried pipeline corrosion monitoring system according to claim 1, characterized in that, Also includes: An electronic device, which is wirelessly connected to the cloud platform server, to receive information on pipeline corrosion sent by the cloud platform server.

5. The Internet of Things-based buried pipeline corrosion monitoring system according to claim 1, characterized in that, The cloud platform server is configured with status information corresponding to each of the wireless transmission devices and the sampling devices. The status information includes at least the location information of the buried pipeline and the IP information of each wireless transmission device, so as to correspond the corrosion status of the buried pipeline with the location of the buried pipeline.

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