CN112485503B - Stray current measuring system and method based on big data processing - Google Patents
Stray current measuring system and method based on big data processing Download PDFInfo
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- CN112485503B CN112485503B CN202011132788.3A CN202011132788A CN112485503B CN 112485503 B CN112485503 B CN 112485503B CN 202011132788 A CN202011132788 A CN 202011132788A CN 112485503 B CN112485503 B CN 112485503B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2516—Modular arrangements for computer based systems; using personal computers (PC's), e.g. "virtual instruments"
Abstract
The invention discloses a stray current measuring system and method based on big data processing 4 The reference electrode is used as a collecting medium to collect potential difference information in soil; the network transmission layer adopts a communication device based on GPRS technology to transmit the potential difference data and the GPS positioning information acquired by the sensing measurement layer to a remote server in real time through the communication technology, and end cloud contact is established; the application processing layer comprises an upper computer server and a user side, the application processing layer processes the acquired real-time measurement data by adopting a Storm distributed stream type calculation method, alarms the abnormal data while storing the data, and transmits the abnormal items and values thereof, abnormal pipe sections and coordinate information to intelligent equipment of the user side.
Description
Technical Field
The invention belongs to the field of electrical measurement, and particularly relates to a measurement system and a measurement method for stray current measurement of big data processing.
Background
In recent years, with the development of high-voltage transmission lines and electrified railways in China, the problem of stray current corrosion is increasingly highlighted while people live better. The stray current is current which flows out of a designed or regulated loop in a non-regular sequence and has no regularity, and when part of current of devices such as trains, subways and buried high-voltage wires flows into a track or places with poor insulation with the ground in life, the stray current leaks into surrounding soil media to form the stray current in the soil.
Stray currents in the soil are indicative of the risk of electrochemical corrosion of underground metal structures. These stray currents that leak are present in the ground and form a natural system flow, they enter the underground metal structure at the place where the insulating layer of the underground metal structure is broken, and then leave the underground metal structure to return to the soil after moving for a certain distance in the underground metal structure, which will cause the underground metal structure to generate potential difference, and further corrode the underground metal structure, thus bringing great safety hazard to people's life.
In the face of the problems caused by the stray current, although people take protective measures such as drainage protection and cathode protection, the pipeline damage caused by the stray current still happens occasionally. In addition, with the development of society, electrical equipment is widely used, underground engineering is continuously developed, and it is important to establish a stray current measurement system with wide coverage, good real-time performance and strong connectivity in order to ensure the safety of underground facilities and the health of people.
At present, the vigorous development of big data brings a lot of economic benefits and social benefits to the society, and the development of the internet, cloud computing, internet of things and the like also promotes big data processing to enter social life. The big data processing means that a specific analysis algorithm is utilized to capture and search the potential value hidden in big data generated in different application scenes on a powerful software analysis tool and platform. The streaming processing method has a high real-time requirement, and can ensure timeliness of a large amount of monitoring data in safety monitoring applications such as traffic control, disaster early warning, environmental monitoring and the like. Therefore, based on the characteristic of strong dispersion of stray current measurement, the big data processing brings technical support for constructing a stray current measurement system with wide coverage and strong connectivity.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a terminal and cloud integrated stray current measuring system and method based on big data processing.
The purpose of the invention is realized by the following technical scheme:
a stray current measuring system based on big data processing comprises a sensing measuring layer, a network transmission layer and an application processing layer, wherein the sensing measuring layer adopts Cu/CuSO 4 The reference electrode is used as a collecting medium to collect potential difference information in soil;
the network transmission layer adopts a communication device based on GPRS technology to transmit the potential difference data and the GPS positioning information acquired by the sensing measurement layer to a remote server in real time through the communication technology, and end cloud contact is established;
the application processing layer comprises an upper computer server and a user side, the application processing layer processes the acquired real-time measurement data by adopting a Storm distributed stream type calculation method, alarms abnormal data while storing the data, and transmits abnormal items and values thereof, abnormal pipe sections and coordinate information to intelligent equipment of the user side.
Further, the sensing measurement layer comprises Cu/CuSO 4 Reference electrode composed acquisition device, A/D conversion unit and data processing device, Cu/CuSO 4 The reference electrode acquires an analog voltage signal and then inputs the analog voltage signal into the A/D conversion unit, the analog signal is converted into a digital signal through the A/D conversion unit, then the digital signal is input into the data processing device, and the final soil voltage measurement data is obtained through calculation.
Further, the network transmission layer comprises a data transceiver module, a control unit, a positioning module and a communication module.
Further, the Storm distributed streaming computing method adopts a master-slave architecture mode, a data processing flow is controlled by setting Topology, a data source A1 reads anode and cathode voltage data and location information data of a location A from uploaded data and sends the data to a message processor B1, a message processing program packaged in a message processor B1 calculates to obtain a soil voltage difference value of the location A, and the packaged processing program performs early warning judgment and data storage on the soil voltage difference when data stream is transmitted to the message processor B2; in order to ensure the effectiveness and the high efficiency of message processing, each data source can correspond to a plurality of message processors to carry out distributed data processing, and when the plurality of data sources and the plurality of message processors are used in a crossed manner to form a mesh structure, the efficiency is improved.
The invention also provides a technical scheme as follows:
a stray current measurement method based on big data processing comprises the following steps:
step 1: sending a monitoring starting instruction to a sensing measurement layer through a client, and using Cu/CuSO 4 The stray current measuring device with the reference electrode as the collecting medium starts to measure the voltage difference value in the soil and transmits the voltage difference value to the netIn the network transport layer;
step 2: the network transmission layer preprocesses the data, and transmits the voltage difference value and the GPS positioning information to an upper computer server by adopting a communication device;
and step 3: the upper computer server utilizes a Storm program to perform real-time processing on the data transmitted by each site in large batch, and if the result exceeding the early warning value is obtained through calculation, the data is automatically transmitted to the client to give an alarm; otherwise, storing the data in an upper computer server;
and 4, step 4: inquiring soil voltage difference data of each measured point in real time through operation of a client, so as to obtain the condition of reflecting the magnitude of the stray current value of the measured point; if the alarm data exists, the protection processing plan is started immediately.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention provides a measurement system combining a stray current detection control technology, a computer technology, an Internet of things technology, a wireless communication technology and artificial intelligence diagnosis, which integrates the functions of data monitoring, query, alarm, curve printing, report printing and the like, can effectively monitor the size of stray current in soil, provides accurate data information for safety judgment of metal pipelines, is convenient for maintenance personnel to find underground facilities with high risk coefficients in time through an intelligent stray current processing system abnormal condition diagnosis platform constructed based on stray current early warning grade rules, realizes early warning classification and early prevention on safe operation of the underground facilities, and ensures the safety of the underground facilities.
Meanwhile, the system can clearly present the real-time condition and the historical condition of the stray current, can provide reference for trend prediction and facility running state evaluation of the stray current, realizes measurement of the interconnected stray current, has the functions of wide coverage, good real-time performance, strong connectivity and convenient monitoring, and effectively reduces the operation cost of monitoring.
Drawings
Fig. 1 is an overall block diagram of the system in the present invention.
Fig. 2 is an overall block diagram of the stray current measurement sensing apparatus of the present invention.
FIG. 3 is a schematic diagram of the work of the Storm distributed streaming computation method in the present invention.
Fig. 4 is a flowchart of the program operation in the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The overall block diagram of the stray current measuring system is shown in fig. 1, and the system mainly comprises a sensing measuring layer, a network transmission layer and an application processing layer.
The system works by firstly using Cu/CuSO 4 The stray current measuring device with the reference electrode as a collecting medium collects the voltage difference of soil, the collected data is input into the communication module through the RS-485 interface after primary treatment, and the communication module transmits the collected information and the positioning information to the server of the upper computer. And after receiving the real-time information, the upper computer server analyzes data by adopting a Storm distributed stream type calculation method, and transmits an analysis result to the client through a network, so that the large-scale stray current real-time monitoring is realized.
The sensing measurement layer mainly adopts portable Cu/CuSO 4 The reference electrode is used for measuring the soil potential difference, and as shown in fig. 2, a block diagram of the overall measurement flow of the sensing measurement layer is shown. When measuring, Cu/CuSO 4 The reference electrode is inserted into water and placed for 24 hours, and Cu/CuSO is added during measurement 4 The electrode body is put on the soil surface only by leading the CuSO 4 The lowest end of the electrode is in contact with the soil. The device is most likely to be close to underground pipelines buried in soil and other facilities in the measurement process, so that the influence of the ground potential of the pipe can be greatly reduced, and the measurement distance is 1 meter.
Cu/CuSO 4 The reference electrode acquires an analog voltage signal and then inputs the analog voltage signal into the A/D conversion unit, and the analog signal is converted into a digital signal through the double-integration A/D conversion unit ICL 7135. Then the digital signal is input into a singlechip STC10F04XE for front-end data processingAnd calculating to obtain final soil voltage measurement data.
The network transmission layer is mainly responsible for transmitting data acquired by the sensing measurement layer to an upper computer server through a network, and interconnection of objects and cloud is achieved. The network transmission layer mainly adopts a communication device based on GPRS technology to complete functional tasks. The communication device takes an STM32F103FBT6 singlechip as a control core, adopts an MC20 chip containing GPRS as a multifunctional wireless transmission module, and adds a GPS function to transmit data and simultaneously transmit an address. The device can also adopt a Beidou system to realize data communication and positioning in areas without mobile phone signals or in unstable areas, the precision is better than that of a GPS, and the economy is better.
The preprocessed soil voltage data collected by the sensing measurement layer is accessed into the data transceiver through the RS-485 interface, the single chip microcomputer of the control unit transmits the data and the GPS data acquired from the GPS positioning module through the communication module in a network mode, and the communication module can efficiently transmit data information to an upper computer server by adopting GPRS, 4G, 5G and NB-IOT narrowband cellular technology (Internet of things).
The network transmission layer adopts 16000 milliampere-hour lithium battery for power supply, the endurance time is long, and meanwhile, the collector is also provided with a solar battery panel for charging, so that the lithium battery is not required to be replaced within 3 years.
The application processing layer is divided into an upper computer server processing part and a client application part.
And the upper computer server processing part mainly adopts a Storm distributed stream computing method to analyze and process the uploaded data. Fig. 3 is a schematic diagram of a Storm distributed streaming computing method, which adopts a master-slave architecture mode, and controls a data processing flow by setting Topology, and a Spout1 (a data source 1) reads cathode and anode voltage data and location information data of a location 1 from uploaded data and sends the data to a Bolt1 (a message processor 1), a message processing program encapsulated in a Bolt1 calculates a soil voltage difference value of the location 1, and the encapsulated processing program performs early warning judgment and data storage on the soil voltage difference when a data stream is transmitted to a Bolt2 (a message processor 2). In order to ensure the effectiveness and efficiency of message processing, each Spout may perform distributed data processing corresponding to multiple bolts, and when multiple spouts and multiple bolts are used across to form a mesh structure, Topology has very high processing efficiency.
Storm can be generally composed of a plurality of processes running on different machines in an upper computer server, namely, in order to improve data processing efficiency, Spout and Bolt can be stored in different machines, and high-efficiency processing of big data is realized through cloud computing.
The client application part is mainly based on the data obtained by the upper computer server processing part, visually transmits the data to the client and enables the client user to further process the data. The client application mainly comprises the following functions:
(1) and querying and displaying data. The client can read the soil potential difference and the position information obtained by calculation from the upper computer server through the network at any time, and can form a data table according to the requirements, so that the query of the soil stray current measurement value at a fixed point can be realized.
(2) And (5) displaying alarm abnormity. When the soil potential difference calculated by the upper computer server exceeds the set threshold value by 2mV, the upper computer server automatically transmits alarm information to the client, and the client displays the abnormal place and abnormal value condition of the stray current.
Specifically, the working flow of the measurement system of the present embodiment is shown in fig. 4, and the system operation can be divided into the following steps:
step 1: sending a monitoring starting instruction to a sensor through a client, and using Cu/CuSO 4 And the stray current measuring device with the reference electrode as a collecting medium starts to measure the voltage difference value in the soil and transmits the voltage difference value to the network transmission layer.
Step 2: the network transmission layer preprocesses the data, and the communication device is adopted to transmit the voltage difference value and the GPS positioning information to the upper computer server through GPRS, 4G, 5G or NB-IOT narrowband cellular technology (Internet of things).
And step 3: and the upper computer server performs large-batch real-time processing on the data transmitted by each place by using a Storm program, and automatically transmits the data to the client for alarming if the result of the calculation exceeds the early warning value by 2 mV. Otherwise, storing the data in the upper computer server.
And 4, step 4: the soil voltage difference data of each measured point can be inquired in real time through the operation of the client, so that the condition of reflecting the value of the stray current at the point is obtained. If alarm data exist, processing operations such as drainage protection and the like are started immediately, and the safety of facilities is ensured.
The present invention is not limited to the above-described embodiments. The foregoing description of the specific embodiments is intended to describe and illustrate the technical solutions of the present invention, and the specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto and changes may be made without departing from the scope of the invention as defined by the claims and their equivalents.
Claims (2)
1. A stray current measurement system based on big data processing is characterized by comprising a sensing measurement layer, a network transmission layer and an application processing layer, wherein the sensing measurement layer adopts Cu/CuSO 4 The reference electrode is used as a collecting medium to collect potential difference information in soil;
the network transmission layer adopts a communication device based on GPRS technology to transmit the potential difference data and the GPS positioning information acquired by the sensing measurement layer to a remote server in real time through the communication technology, and end cloud contact is established;
the application processing layer comprises an upper computer server and a user side, the application processing layer processes acquired real-time measurement data by adopting a Storm distributed stream type calculation method, alarms abnormal data while storing the data, and transmits abnormal items, values, abnormal pipe sections and coordinate information to intelligent equipment of the user side, and the sensing measurement layer comprises Cu/CuSO 4 Reference electrode composed acquisition device, A/D conversion unit and data processing device, Cu/CuSO 4 After analog voltage signals are acquired by the reference electrode, the input signals are converted into A/D signalsThe Storm distributed streaming computing method adopts a master-slave architecture mode, a data processing flow is controlled by setting Topology (Topology), a data source A1 reads anode and cathode voltage data and location information data of a location A from uploaded data and sends the data to a message processor B1, a message processing program packaged in a message processor B1 obtains a soil voltage difference value of the location A through calculation, and the packaged processing program performs early warning judgment and data storage on the soil voltage difference when data stream is transmitted to a message processor B2; in order to ensure the effectiveness and the high efficiency of message processing, each data source can correspond to a plurality of message processors to carry out distributed data processing, and when the plurality of data sources and the plurality of message processors are used in a crossed manner to form a mesh structure, the efficiency is improved.
2. A stray current measurement method based on big data processing, based on the stray current measurement system based on big data processing of claim 1, characterized by comprising the following steps:
step 1: sending a monitoring starting instruction to a sensing measurement layer through a client, and using Cu/CuSO 4 A stray current measuring device with a reference electrode as a collecting medium starts to measure the voltage difference value in the soil and transmits the voltage difference value to a network transmission layer;
step 2: the network transmission layer preprocesses the data, and transmits the voltage difference value and the GPS positioning information to an upper computer server by adopting a communication device;
and step 3: the upper computer server performs batch real-time processing on data transmitted by each place by using a Storm program, and automatically transmits the data to the client for alarming if the result of exceeding the early warning value is obtained through calculation; otherwise, storing the data in an upper computer server;
and 4, step 4: inquiring soil voltage difference data of each measured point in real time through operation of a client, so as to obtain the condition of reflecting the magnitude of the stray current value of the measured point; if the alarm data exists, the protection processing plan is started immediately.
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| CN113281563A (en) * | 2021-04-27 | 2021-08-20 | 山东轨道交通研究院有限公司 | Urban rail transit traction power supply comprehensive monitoring protection device |
| CN114528773B (en) * | 2022-04-24 | 2022-09-02 | 国网江西省电力有限公司电力科学研究院 | Track traffic stray current waveform prediction system and method based on big data analysis |
| CN116660606B (en) * | 2023-04-11 | 2023-12-22 | 国网上海电力设计有限公司 | Power line direct current remote measuring device and testing method thereof |
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| KR20050044062A (en) * | 2003-11-07 | 2005-05-12 | 한국전기연구원 | Data logger apparatus for measurement stray current of subway and power line |
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