CN104928686B - A kind of buried pipeline cathodic protection data collecting system - Google Patents
A kind of buried pipeline cathodic protection data collecting system Download PDFInfo
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- CN104928686B CN104928686B CN201510233138.0A CN201510233138A CN104928686B CN 104928686 B CN104928686 B CN 104928686B CN 201510233138 A CN201510233138 A CN 201510233138A CN 104928686 B CN104928686 B CN 104928686B
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Abstract
The invention discloses a kind of buried pipeline cathodic protection data collecting system, including：At least one data acquisition storage device, data analysis prior-warning device；The data acquisition storage device is communicated to connect by network and the data analysis prior-warning device；The data acquisition storage device gathers buried pipeline cathodic protection processing data information and is transmitted through the network to the data analysis prior-warning device after storing；The data analysis prior-warning device receives the buried pipeline cathodic protection data message that the data acquisition storage device is sent and carries out early warning analysis, according to early warning analysis result early warning.The present invention realizes the collection monitoring of buried pipeline stray electrical current and cathodic protection data with concentrating supervision and management.The promptness, reliability and authenticity of pipeline stray electrical current and cathodic protection test data are ensure that, while saves corresponding human resources and effectively improves pipeline fountain and cathodic protection operation and management level.
Description
Technical field
The present invention relates to a kind of buried pipeline cathodic protection data collecting system, belongs to buried pipeline protection technique field.
Background technology
Buried pipeline includes various oil transportations, gas transmission and aqueduct, and most buried pipelines are metallic conduit.In order to
The resistance to corrosion of metallic conduit is improved, is increased the service life, metallic conduit outer layer typically has anticorrosive coat.In order to further carry
High antiseptic power, cathode protection measure is additionally used, usually give metallic conduit to apply a voltage, make the metallic conduit be in over the ground
Existing negative potential.With expanding economy, surface em environment becomes increasingly complex, DC transmission system near buried pipeline, exchange
The construction such as ultra-high-tension power transmission line are also developing rapidly, alternating current-direct current electric railway and its electric substation of converting plant, integrated mill, exchange
The equiprobable stray electrical current interference source of grounding body, DC earthing body, can all disturb the work of the cathodic protection system of metallic conduit,
Accelerate the corrosion rate of metallic conduit.It is therefore desirable to find whether buried pipeline disturbs by stray electrical current in real time, understand miscellaneous
The details such as the type, size, particular location of current interference are dissipated, and then take corresponding safeguard procedures in time to avoid deteriorating shape
Into more serious pipeline accident.
It is at present to utilize pipe cathode at artificial collection buried pipeline test pile using more stray electrical current determination methods
Protection potential, if pipe to soil potential is abnormal, show to there may exist stray electrical current interference on pipeline.Cathodic protection potential is regular
Manual measurement, has that test period is long, data volume is few and accuracy is poor, be unable to continuous acquisition, takes a data to have contingency etc.
Drawback.And the degree and time of occurrence of stray electrical current interference are uncertain, cause decision-making and managerial competency and cause pipeline to pacify
Row bad hidden danger for the national games even accident and loss.Show or total indicator reading, lack in addition, the display of measurement data is mainly character
Intuitive, it is impossible to be patterned display, inconvenience is brought to field application.
Relatively advanced buried oil-gas pipeline cathodic protection automatic monitoring system in the prior art, it can be achieved to temperature and pipe
The collection and storage of ground AC and DC current potential, but the system can not realize instant cut-off current potential to pipeline corrosion potential and pipe
Measurement, while stray electrical current AC and DC current potential can only be measured and the measurement to AC and DC electric current relevant parameter can not be realized,
So that it can not judge stray electrical current annoyance level so as to take safeguard procedures.In addition, the monitoring system needs to develop special number
The parameter setting of on-site data gathering device and data transfer are realized according to table, adds the complexity and cost of system.Meanwhile should
System relies on manual analysis processing data, excessively simplifies.Existing Buried Pipeline detects evaluation system, can be achieved to pipe
Road and soil corrosion on-line checking, but the system still has the above-mentioned measurement that can not be realized to AC and DC electric current relevant parameter,
So that it can not judge stray electrical current annoyance level and leverage the dependable with function of the monitoring system, while also pole
The big degree of accuracy for disturbing cathodic protection Effective judgement.The other system is transmitted using GPRS Radio Transmission Technologys, is deposited
In certain technological deficiency, such as can not then be realized in the place that GPRS signals can not cover, data transfer.
The content of the invention
The technical problem to be solved in the present invention is：Solution is unable to complete detection buried pipeline stray electrical current phase in the prior art
The problem of related parameter and real-time early warning.
To realize above-mentioned goal of the invention, the invention provides a kind of buried pipeline cathodic protection data collecting system, bag
Include at least one data acquisition storage device, data analysis prior-warning device；
The data acquisition storage device is communicated to connect by network and the data analysis prior-warning device；
The data acquisition storage device gathers buried pipeline cathodic protection processing data information and passes through network after storing
Transmit to the data analysis prior-warning device；The data analysis prior-warning device receives what the data acquisition storage device was sent
Buried pipeline cathodic protection data message simultaneously carries out early warning analysis, according to early warning analysis result early warning.
Wherein more preferably, the data analysis prior-warning device includes data application unit and database；
The data application unit connects with the database communication；
The database receives the buried pipeline cathodic protection data message of the data acquisition storage device transmission and stored up
Deposit；Buried pipeline cathodic protection data in database described in the data application cell call carry out early warning analysis, according to pre-
Alert analysis result early warning；The early warning analysis result is transmitted to the database and preserved by the data application unit.
Wherein more preferably, the database is independent pipe database, pipeline integrity Management System Data storehouse, pipeline
One or more of SCADA system database.
Wherein more preferably, the data application unit includes System Management Unit, monitoring device administrative unit, Back ground Information
Administrative unit, statistical query unit, monitoring and early warning unit, daily management unit, system journal unit；The system administration list
First, described monitoring device administrative unit, the Basic Information Management unit, the statistical query unit, the monitoring and early warning list
First, described daily management unit, the system journal unit are connected by data-interface with the database communication respectively.
Wherein more preferably, the data acquisition storage device includes：
Control unit, voltage detection unit, current detecting unit and polarized probe；
The voltage detection unit, the current detecting unit communicate to connect with described control unit respectively；The voltage
Detection unit, the current detecting unit are connected with the polarized probe respectively；The current detecting unit also with buried pipeline
Connection；
The information of voltage that the voltage detection unit detects is transmitted to described control unit, the current detecting unit inspection
The direct current that measures and/or alternating current information transfer to described control unit, described control unit to receive information of voltage,
Direct current and/or alternating current information calculate and store and/or transmit to data analysis prior-warning device after handling.
Wherein more preferably, the current detecting unit includes DC current collecting unit and AC current collecting unit；Institute
DC current collecting unit and the AC current collecting unit is stated to communicate to connect with described control unit respectively；
The DC current collecting unit and the AC current collecting unit are connected with the polarized probe respectively；
The DC current collecting unit passes through inductance and the DC current of the buried pipeline connecting detection buried pipeline
Value；The AC current collecting unit passes through electric capacity and the AC current values of the buried pipeline connecting detection buried pipeline；
The DC current values of DC current collecting unit detection buried pipeline are simultaneously calculated after DC current density together
Transmit to control unit；The AC current values of the AC current collecting unit detection buried pipeline simultaneously calculate AC current density
Transmit together afterwards to control unit.
Wherein more preferably, the DC current collecting unit passes through the inductance detection underground pipe that is connected between buried pipeline
The DC current values in road；The AC current collecting unit passes through the capacitance detecting buried pipeline that is connected between buried pipeline
AC current values,.
Wherein more preferably, the DC current collecting unit and the AC current collecting unit are compiled by embedded program
Journey distinguishes the DC current values of detection buried pipeline, AC current values.
Wherein more preferably, the DC current collecting unit and the AC current collecting unit are to include current path electricity
The harvester of road biasing Hall circuit low with chopper-type is stablized；
Magnetic Field caused by the stable chopper-type low biasing Hall circuit sensing current path circuit is simultaneously changed
Exported into corresponding information of voltage.
Wherein more preferably, the DC current collecting unit and the AC current collecting unit include ASC712 chips.
Wherein more preferably, relay, the voltage acquisition are additionally provided between the buried pipeline and the polarized probe
Unit gathers the alternating voltage, pipeline energization current potential, certainly instant cut-off current potential, corruption of buried pipeline by the break-make of the relay
Current potential is transmitted to control unit.
Wherein more preferably, described control unit integrates with the voltage detection unit.
Wherein more preferably, described control unit includes STM32F103VET6 chips with the voltage detection unit.
Wherein more preferably, in addition to communication unit, global positioning unit and waterproof case；
Described control unit, the voltage detection unit, the current detecting unit, the communication unit, the whole world
Positioning unit is placed in the shell,
The communication unit includes wired communication module and/or wireless communication module, the communication unit and the control
Unit connects；
The global positioning unit is connected with described control unit；
Data after described control unit processing are transmitted to data analysis prior-warning device by the communication unit.
Wherein more preferably, the collection of data acquisition storage device is transmitted through the network to the data analysis prior-warning device transmission
During buried pipeline cathodic protection data message by Ethernet, GPRS network, industrial RS232 RS485 buses, TD-SCDMA,
Any one mode in CDMA2000, WCDMA, WiMAX, CDMA is transmitted.
Wherein more preferably, the collection of data acquisition storage device is transmitted through the network to the data analysis prior-warning device transmission
During buried pipeline cathodic protection data message,
Data acquisition storage device is by buried pipeline cathodic protection data information transfer to portable PC；
Buried pipeline cathodic protection data message is transmitted through the network to data analysis prior-warning device by portable PC.
The buried pipeline cathodic protection data collecting system of the present invention, realizes buried pipeline stray electrical current and cathodic protection
The collection monitoring of data is with concentrating supervision and management, in data application unit by management software operation interface with curve table and data
The form displaying of table.Pipeline stray electrical current disturbance regime and cathode protection condition are grasped in time, so as to more accurately enter
The corresponding safeguard procedures resolution of row.It ensure that the promptness of pipeline stray electrical current and cathodic protection test data, reliability and true
Reality, while save corresponding human resources and effectively improve pipeline fountain and cathodic protection operation and management level.
User's ease-to-operate and ease for use are met, further ensures the stability and reliability of system.
Brief description of the drawings
Fig. 1 is buried pipeline cathodic protection data collecting system structural representation of the present invention；
Fig. 2 is data acquisition memory device structure schematic diagram of the present invention；
Fig. 3 is a kind of embodiment system structure diagram of current detecting unit of the present invention；
Fig. 4 is ACS712 chip functions principle schematic of the present invention；
Fig. 5 is current detecting unit another embodiment system structure diagram of the present invention；
Fig. 6 is data analysis prior-warning device structural representation of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
As shown in figure 1, the present invention provides a kind of buried pipeline cathodic protection data collecting system, including at least one data
Acquisition and storage device, data analysis prior-warning device；The data acquisition storage device passes through network and the data analysis early warning
Device communicates to connect；The data acquisition storage device gathers buried pipeline cathodic protection processing data information and passed through after storing
Network transmission is to the data analysis prior-warning device；The data analysis prior-warning device receives the data acquisition storage device hair
The buried pipeline cathodic protection data message that send simultaneously carries out early warning analysis, according to early warning analysis result early warning.Below to the present invention
The data acquisition storage device expansion detailed description of offer.
As shown in Fig. 2 in one embodiment of the invention, data acquisition storage device includes：Control unit, voltage inspection
Survey unit, current detecting unit and polarized probe；Voltage detection unit, current detecting unit respectively with control unit communication link
Connect；Voltage detection unit, current detecting unit are connected with polarized probe respectively；Current detecting unit is also connected with buried pipeline；
The information of voltage that voltage detection unit detects is transmitted to control unit, the direct current and/or exchange that current detecting unit detects
Current information is transmitted to control unit, control unit the information of voltage, direct current and/or alternating current information that receive are calculated and
Store and/or transmit after processing to data analysis prior-warning device.
As shown in figure 3, in one embodiment of the invention, current detecting unit includes DC current collecting unit and friendship
Flow current acquisition unit；DC current collecting unit and AC current collecting unit communicate to connect with control unit respectively；Direct current
Current acquisition unit and AC current collecting unit are connected with polarized probe respectively；DC current collecting unit is by inductance with burying
The DC current values of ground pipeline connecting detection buried pipeline；AC current collecting unit passes through electric capacity and buried pipeline connecting detection
The AC current values of buried pipeline；DC current values of DC current collecting unit detection buried pipeline and to calculate DC current close
Transmitted together to control unit after degree；The AC current values of AC current collecting unit detection buried pipeline simultaneously calculate alternating current
Transmitted together to control unit after density.
In practical situations both, existing AC influence electric current in pipeline, also by DC influence electric current.Therefore, it is buried in measurement
Current detecting unit draws two branch roads during the electric current of pipeline, connects capacitor element circuit and inductance coil device respectively.One
In kind embodiment, inductance is connected between DC current collecting unit and buried pipeline, can be filtered out by inductance in circuit
Alternating current, DC current collecting unit pass through the DC current for the inductance detection buried pipeline being connected between buried pipeline
Value.As shown in figure 3, DC current collecting unit preferably uses the ACS172ELC-05B chips of ACS712 chip series.ACS712
Chip series include current path circuit biasing Hall circuit low with chopper-type is stablized.DC current collecting unit gathers underground pipe
During the electric current in road, inductance one end connects the pin 1,2 of ACS172ELC-05B chips.The pin 3,4 of ACS172ELC-05B chips
The polarization test piece of connection plan probe.When the electric current of buried pipeline flows through ACS172ELC-05B chips, between pin 1,2 and 3,4
Passage current caused by magnetic field, sensed by the Hall integrated circuit in ACS172ELC-05B chips, and by the electricity of sensing
Magnetic signal is converted into proportional voltage output.Electric capacity is connected between AC current collecting unit and buried pipeline, passes through electricity
Hold the DC current that can be filtered out in circuit, AC current collecting unit is buried by the capacitance detecting being connected between buried pipeline
The AC current values of ground pipeline.Similarly, as shown in figure 4, AC current collecting unit is also using ACS712 chip series
ACS172ELC-05B chips.Specific AC current collecting mode and DC current acquisition mode are essentially identical, herein just no longer
Repeat one by one.Current density can be obtained by embedded program program calculation, and current density value is equal to current value divided by examination
The naked leakage area of piece obtains.In this programme, DC current density is equal to DC current values divided by the naked leakage area of test piece electrode obtains
Arrive, AC current density is equal to AC current values divided by the naked leakage area of test piece electrode obtains.
For above-mentioned current acquisition scheme, inventor has found that this embodiment is often deposited by testing and studying repeatedly
Some are tiny the problem of, such as precision is not high enough, and the problems such as poor reliability, two ACS172ELC-05B chips work simultaneously
Cost is higher, and power consumption is also corresponding larger.To avoid this problem, inventor provides another scheme, as shown in figure 5, direct current
Current acquisition unit and AC current collecting unit surveyed by embedded program programming area go-on-go buried pipeline DC current values,
DC current density, AC current values, AC current density.Current detecting unit directly uses an ACS172ELC-05B core
Piece, by the embedded program programming realization to ACS172ELC-05B chips to alternating current information and DC current information
Detection.When current detecting unit gathers the electric current of buried pipeline, buried pipeline connects the pin 1,2 of ACS172ELC-05B chips；
The polarization test piece of the connection plan probe of pin 3,4 of ACS172ELC-05B chips.Specific current acquisition mode with two
The current acquisition mode of ACS172ELC-05B chips is essentially identical, DC current density and AC current density and two
The scheme of ACS172ELC-05B chips is essentially identical, just no longer repeats one by one herein.This scheme, which eliminates, is divided into two branch
Road individually connects inductance or electric capacity.Not only reduce cost and also improve accuracy of detection and reliability.
ACS712 chips are mainly passed by the current path made of copper close to chip surface and accurate low biasing linear Hall
Sensor circuit etc. forms, as shown in Figure 4.The interior resistance for the path (circuit between pin l and 2,3 and 4) that tested electric current flows through
Typically 1.2 milliohms, there is relatively low power consumption.Tested current path is pressed with sensor pin (pin 5~8)>2.1kVRMS, it is several
It is insulation.Magnetic field caused by the electric current for flowing through copper current path of buried pipeline, can be by the Hall IC sense in piece
Proportional voltage and should be translated into.ACS712 chips close proximity to Hall sensor by magnetic signal by realizing device
The optimization of part accuracy.Accurate proportional output voltage is carried by stablizing the low biasing BiCMOS Hall integrated circuits of chopper-type
For the integrated circuit has been carried out accurately programming when dispatching from the factory.The low biasing BiCMOS Hall integrated circuits of stabilization chopper-type are given
Hall component and amplifier in piece provide minimum bias voltage, and the technology can almost eliminate chip by temperature is produced
Raw output.
In another embodiment of the present invention, relay is additionally provided between buried pipeline and polarized probe, voltage is adopted
Collect alternating voltage, pipeline energization current potential, instant cut-off current potential, certainly rotten electricity that unit gathers buried pipeline by the break-make of relay
Transmit to control unit position.In the present embodiment, control unit and voltage acquisition unit integrate, it is preferred to use arm processor, bag
Include STM32F103VET6 chips.Measurement voltage function is built-in with inside the arm processor, electricity is directly read by dma controller
Pressure (as a kind of backstage bulk data transferring technology independently of CPU, with it, fast and efficiently lead DMA in data acquisition by feature
It is used widely in domain), it can be changed using built-in AD conversion module and digital-to-analog conversion is carried out to the signal collected.
When measuring magnitude of voltage, the GND pin of STM32F103VET6 chips is connected with the reference electrode of polarized probe, so that most
Low potential is consistent.When measuring voltage, pass through AD (analog/digital) modular converter monitoring voltage value in processor chips.
When measuring switch-off potential, the AD pins of STM32F103VET6 chips are connected into relay, relay other end connection polarized probe
Polarization test piece, moment by drawing high the corresponding control bit of relay, then now with pipeline disconnect, so as to measure test piece power-off electric
Position.When measuring corrosion potential, the AD pins of STM32F103VET6 chips are connected to the self-corrosion test piece of polarized probe, surveyed
Value out is corrosion potential.The AD pins of STM32F103VET6 chips are connected with the polarization test piece of polarized probe, after
It is energization current potential that electrical equipment, which measures the value come,.Test pipeline energization current potential, instant cut-off current potential, from rotten current potential when, detected
Journey needs to measure three magnitudes of voltage, so using the mode of three road AD polls, then directly reads data by DMA.
Processor is acquisition and recording instrument core cell, coordinates and drive the work of other units.The present invention uses base
In 32 arm processors of Cortex-M3 kernels.STM32F103VET6 chips have highest 72MHz dominant frequency and 512K
Flash flash memories.Stm32f103 Series of MCU has that platform cost is low, system power dissipation is low, while provides the computational of brilliance
Can be with the response of advanced interruption system the advantages that.STM32F103xx is enhanced to support three kinds of low-power consumption modes, can require low
Reach optimal balance between power consumption, short startup time and a variety of wake events.In sleep pattern, only CPU stops, all outer
If in running order and CPU can be waken up when interruption/event occurs.In the situation that holding SRAM and content of registers do not lose
Under, shutdown mode can reach minimum power consumption.Under shutdown mode, stop the power supply of all internal 1.8V parts,
PLL, HSI and HSE RC oscillators are closed, and pressure regulator can be placed in general mode or low-power consumption mode.Can be by appointing
One signal for being configured to EXTI wakes up microcontroller from shutdown mode, EXTI signals can be one of 16 exterior Is/O mouths,
The wake-up signal of PVD output, RTC alarm clocks or USB.Minimum power consumption can be reached in stand-by mode.Internal electricity
Pressure pressure regulator is closed, therefore the power supply of all internal 1.8V parts is cut off；PLL, HSI and HSE RC oscillators are also closed
Close；Into after standby mode, the content of SRAM and register will disappear, but the content of backing register still retains, and treats electromechanics
Road still works.
Data acquisition storage device provided by the invention is to be in standby mode in the most of the time, so as to reach most
Low power consumption, about 2uA under standby mode.Only when the data of collection exceed predetermined threshold value, system can just be led to immediately
Cross interruption and immediately enter normal mode transmission emergency data, be still in low power consumpting state afterwards.
As shown in Fig. 2 in one embodiment of the invention, data acquisition storage device also includes GPS (Global
Positioning System, global positioning satellite) unit, GPS unit and controller communication connection.Because buried pipeline is most
It is in an outdoor environment, it is therefore desirable to which prioritizing selection use is that ATK-NEO-6M d GPS locating modules are positioned.Determined using GPS
The difficult point of position is the positional information the signal resolution from satellite received into needs.D GPS locating module follows standard
NMEA-0183 agreements (National Marine Electronics association be sea electronic equipment formulation reference format), using ASCII character
To transmit GPS location information.The location information needed is mainly longitude, latitude, time, as long as parsing $ GPRMC are recommended
Location information sentence, it includes longitude and latitude and time.ATK-NEO-6M-V12GPS modules, the module use U-
BLOX NEO-6M chips.Module is connected by serial ports with external system, and serial port baud rate acquiescence is 38400.There is provided in the present invention
Data acquisition storage device need to gather longitude and latitude information, as long as therefore to $ GPRMC (recommend location information,
Recommended Minimum Specific GPS/Transit Data) order carries out that parsing can (sentence includes longitude and latitude
Spend information).
The basic format of $ GPRMC sentences is as follows
$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>*hh
<1>UTC time, hhmmss (Hour Minute Second) form
<2>Positioning states, A=are effectively positioned, the invalid positioning of V=
<3>Latitude ddmm.mmmm (degree point) form (0 above will be also transmitted)
<4>Latitude hemisphere N (Northern Hemisphere) or S (Southern Hemisphere)
<5>Longitude dddmm.mmmm (degree point) form (0 above will be also transmitted)
<6>Longitude hemisphere E (east longitude) or W (west longitude)
<7>Ground speed (000.0~999.9 section, above 0 will also be transmitted)
<8>Ground course (000.0~359.9 degree, using geographical north as reference data, 0 will also be transmitted above)
<9>UTC dates, ddmmyy (day month year) form
<10>Magnetic declination (000.0~180.0 degree, above 0 will also be transmitted)
<11>Magnetic biasing angular direction, E (east) or W (west)
<12>(only NMEA01833.00 versions export, A=autonomous positionings, D=difference, E=estimations, N=numbers for pattern instruction
According to invalid)
It is exemplified below：
$GPRMC,023543.00,A,2308.28715,N,11322.09875,E,0.195,,240213,,,A*78
As shown in Fig. 2 in one embodiment of the invention, data acquisition storage device also includes communication unit, communication
Unit is communicated to connect with control unit, and the buried pipeline cathodic protection data message after control unit processing is passed by communication unit
Transport to data analysis prior-warning device.Because data acquisition storage device is set in the wild mostly, the communication unit is preferably wireless
Communication module, wireless communication module includes antenna, communication unit forms.Communication unit can use TD-SCDMA, CDMA2000,
WCDMA, WiMAX, CDMA or GPRS any one mode therein, preferably GPRS modes are transmitted.Wired data transfer mode is adopted
The mode gathered manually using data acquisition and monitoring software with onsite application portable PC；Wherein data acquisition and monitoring software installation
On portable PC, portable PC is carried by pipeline track walker, by predetermined period to pipeline test pile reads data log instrument
The field data of middle storage, data logger are attached by USB data interface and portable PC.
In order to avoid meeting water or other influences of infiltration to each data acquisition and communication unit, it is necessary to which data acquisition is stored
Device does certain protection, is provided simultaneously with thunderbolt and surge protection function.Data acquisition storage device also includes waterproof case, control
Unit processed, voltage detection unit, current detecting unit are put with shell, the shell of data acquisition storage device is installed on into pipeline
Along the line in test pile, antenna is fixed on outside test pile, and the cable of antenna is connected with wireless data communication unit, and carry out
Water-proofing treatment.Data acquisition recorder is fixed according to setting pattern (per second, per minute, carry out data acquisition every hour or every day)
When gather and store the buried pipeline cathodic protection data message of pipeline field, buried pipeline cathodic protection data message include temperature
Degree, geographical coordinate, pipeline energization current potential, instant cut-off current potential, corrosion potential, alternating voltage, AC current density and direct current
Current density.
As shown in figure 1, in one embodiment of the invention, data analysis prior-warning device includes data application unit sum
According to storehouse；The data application unit connects with the database communication；The database receives the data acquisition storage device
The buried pipeline cathodic protection data message of transmission simultaneously stores；Underground pipe in database described in the data application cell call
Cathodic protection data message in road carries out early warning statistical analysis, according to early warning statistic analysis result early warning；The data application unit
The early warning analysis result is transmitted to the database and preserved.
Database is used for the Various types of data for depositing data application unit early warning statistical analysis.It can be storage number in database
That according to applying unit early warning statistical analysis is independent pipe database, pipeline integrity Management System Data storehouse, pipeline SCADA
(Supervisory Control And Data Acquisition, data acquisition control with monitoring) system database, certainly
Can be multiple in any of the above database.Preferably pipeline integrity Management System Data storehouse.Database can be selected
Oracle database, SQL Server databases, preferably oracle database can also be selected.
Data application unit can be implemented function such as by database：Data import renewal, display retrieval and inquisition, history
Wave shape playback, redundant data rejecting, data information management, data safety management；As shown in fig. 6, data application unit is including being
System administrative unit, monitoring device administrative unit, Basic Information Management unit, statistical query unit, monitoring and early warning unit, daily pipe
Manage unit, system journal unit；Wherein, the System Management Unit, monitoring device administrative unit, Basic Information Management unit,
Statistical query unit, monitoring and early warning unit, daily management unit, system journal unit pass through data-interface and the data respectively
Storehouse is connected.
The buried pipeline cathodic protection data message that data acquisition storage device collects is transmitted through the network to the number
It can be transmitted during according to analysis and early warning device by wired or wireless way, such as：Ethernet, GPRS network, industrial RS232
Any one mode in RS485 buses, TD-SCDMA, CDMA2000, WCDMA, WiMAX, CDMA, preferably GPRS.If number
There is no appropriate wired or wireless network according to the position where acquisition and storage device, buried pipeline cathodic protection data message uses
Onsite application portable PC utilizes the mode that data acquisition and monitoring software gathers manually；Wherein data acquisition and monitoring software installation exists
On portable PC, portable PC is carried by pipeline track walker, by predetermined period into pipeline test pile reads data log instrument
The field data of storage, data logger are attached by USB data interface and portable PC.The formula PC of taking is collected buried
By PC by buried pipeline cathodic protection data information transfer to network after pipeline cathode protection data message.The present invention passes through nothing
The mode of line data communication and artificial wired data transfer, the data of collection are uploaded in systems management data storehouse, used simultaneously
Family carries out corresponding operating using application platform is monitored to database data, ensure that the promptness of data.
The course of work of buried pipeline cathodic protection data collecting system provided by the invention is as follows：First, data acquisition
Storage device measures collection buried pipeline cathodic protection data message according to preset mode by polarized probe, and will collect
Buried pipeline cathodic protection data information memory is in data acquisition storage device.After the completion of storage, data acquisition storage device leads to
Cross wired or wireless way to send buried pipeline cathodic protection data message, into internet, buried pipeline negative electrode is protected
Shield data message is by network transmission into database.Data application unit calls the data in database to enter by data-interface
The corresponding early warning statistical analysis of row.Data application unit is according to early warning statistic analysis result early warning.For example, if collection is spuious
When electric current and cathodic protection relevant parameter exceed predetermined threshold value, the monitoring and early warning unit in data application unit clicks through to the data
Row warning, so as to realize the early warning to the interference of live stray electrical current.The data application unit passes the early warning analysis result
The database is transported to preserve.
In summary, buried pipeline cathodic protection data collecting system provided by the invention, by using polarized probe and
Data acquisition storage device gathers buried pipeline cathodic protection data message and realizes buried pipeline negative electrode by the way of passback
Collection, record and the monitoring of data message are protected, realizes the collection monitoring of buried pipeline stray electrical current and cathodic protection data
With concentrating supervision and management, shown in data application unit by management software operation interface in the form of curve table and tables of data.
Pipeline stray electrical current disturbance regime and cathode protection condition are grasped in time, are arranged so as to more accurately carry out corresponding protection
Apply resolution.The promptness, reliability and authenticity of pipeline stray electrical current and cathodic protection test data are ensure that, while saves phase
The human resources answered and effectively improve pipeline fountain and cathodic protection operation and management level.Meet user and operate letter
Just property and ease for use, the stability and reliability of system are further ensured.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, about the common of technical field
Technical staff, without departing from the spirit and scope of the present invention, it can also make a variety of changes and modification, thus it is all
Equivalent technical scheme falls within scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (13)
1. a kind of buried pipeline cathodic protection data collecting system, it is characterised in that store and fill including at least one data acquisition
Put, data analysis prior-warning device；
The data acquisition storage device is communicated to connect by network and the data analysis prior-warning device；
The data acquisition storage device gathers buried pipeline cathodic protection processing data information and passes through network transmission after storing
To the data analysis prior-warning device；The data analysis prior-warning device receives the buried of the data acquisition storage device transmission
Pipeline cathode protection data message simultaneously carries out early warning analysis, according to early warning analysis result early warning；
The data acquisition storage device includes：
Control unit, voltage detection unit, current detecting unit and polarized probe；
The voltage detection unit, the current detecting unit communicate to connect with described control unit respectively；The voltage detecting
Unit, the current detecting unit are connected with the polarized probe respectively；The current detecting unit is also connected with buried pipeline；
The information of voltage that the voltage detection unit detects is transmitted to described control unit, and the current detecting unit detects
Direct current and/or alternating current information transfer to described control unit, described control unit is to the information of voltage, the direct current that receive
And/or alternating current information calculates and stores and/or transmit to the data analysis prior-warning device after handling；
The current detecting unit includes DC current collecting unit and AC current collecting unit；The DC current collection is single
First and described AC current collecting unit communicates to connect with described control unit respectively；
The DC current collecting unit and the AC current collecting unit are connected with the polarized probe respectively；
The DC current values that the DC current collecting unit passes through inductance and the buried pipeline connecting detection buried pipeline；Institute
State AC current collecting unit and pass through electric capacity and the AC current values of the buried pipeline connecting detection buried pipeline；
The DC current collecting unit detects the DC current values of buried pipeline and transmitted together after calculating DC current density
To control unit；AC current values of AC current collecting unit detection buried pipeline and to calculate AC current density latter
Rise and transmit to control unit；
The DC current collecting unit passes through the DC current values for the inductance detection buried pipeline being connected between buried pipeline；
The AC current collecting unit passes through the AC current values for the capacitance detecting buried pipeline being connected between buried pipeline.
2. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that the data analysis is pre-
Alarm device includes data application unit and database；
The data application unit connects with the database communication；
The database receives the buried pipeline cathodic protection data message of the data acquisition storage device transmission and stored；Institute
The buried pipeline cathodic protection data message stated in database described in data application cell call carries out early warning analysis, according to early warning
Analysis result early warning；The early warning analysis result is transmitted to the database and preserved by the data application unit.
3. buried pipeline cathodic protection data collecting system as claimed in claim 2, it is characterised in that the database is only
One or more of vertical pipe database, pipeline integrity Management System Data storehouse, Pipeline SCADA System database.
4. buried pipeline cathodic protection data collecting system as claimed in claim 2, it is characterised in that the data application list
Member includes：System Management Unit, monitoring device administrative unit, Basic Information Management unit, statistical query unit, monitoring and early warning list
Member, daily management unit, system journal unit；
The System Management Unit, the monitoring device administrative unit, the Basic Information Management unit, the statistical query list
First, described monitoring and early warning unit, the daily management unit, the system journal unit pass through data-interface and the number respectively
Communicated to connect according to storehouse.
5. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that the DC current is adopted
Collect unit and the AC current collecting unit to survey the DC current values of buried pipeline by embedded program programming area go-on-go, hand over
Flow current value.
6. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that the DC current is adopted
Collection unit and the AC current collecting unit are to include adopting for current path circuit biasing Hall circuit low with chopper-type is stablized
Acquisition means；
Magnetic Field caused by the stable chopper-type low biasing Hall circuit sensing current path circuit is simultaneously converted into phase
The information of voltage output answered.
7. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that the DC current is adopted
Collection unit and the AC current collecting unit include ASC712 chips.
8. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that the buried pipeline with
Relay is additionally provided between the polarized probe, voltage acquisition unit gathers buried pipeline by the break-make of the relay
Alternating voltage, pipeline energization current potential, instant cut-off current potential, transmit to control unit from rotten current potential.
9. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that described control unit with
The voltage detection unit integrates.
10. buried pipeline cathodic protection data collecting system as claimed in claim 9, it is characterised in that described control unit
Include STM32F103VET6 chips with the voltage detection unit.
11. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that it is single also to include communication
Member, global positioning unit and waterproof case；
Described control unit, the voltage detection unit, the current detecting unit, the communication unit, the global location
Unit is placed in the shell；
The communication unit includes wired communication module and/or wireless communication module, the communication unit and described control unit
Connection；
The global positioning unit is connected with described control unit；
Data after described control unit processing are transmitted to the data analysis prior-warning device by the communication unit.
12. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that data acquisition stores
Device collection passes through when being transmitted through the network to the data analysis prior-warning device transmission buried pipeline cathodic protection data message
Ethernet, GPRS network, industrial RS232 appointing in RS485 buses, TD-SCDMA, CDMA2000, WCDMA, WiMAX, CDMA
A kind of mode of anticipating is transmitted.
13. buried pipeline cathodic protection data collecting system as claimed in claim 1, it is characterised in that the buried pipeline
Cathodic protection data are obtained by portable PC from data acquisition storage device, and portable PC is by the buried pipeline negative electrode of acquisition
Protection data message is transmitted through the network to data analysis prior-warning device.
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| CN201510233138.0A CN104928686B (en) | 2015-05-08 | 2015-05-08 | A kind of buried pipeline cathodic protection data collecting system |
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| CN201510233138.0A CN104928686B (en) | 2015-05-08 | 2015-05-08 | A kind of buried pipeline cathodic protection data collecting system |
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| CN108414908B (en) * | 2018-05-25 | 2024-04-09 | 成都朗测科技有限公司 | Cathode protection insulation tester and testing method thereof |
| CN111101136B (en) * | 2018-10-25 | 2022-06-07 | 中国石油化工股份有限公司 | Metal pipeline cathode protection test pile stray current low-power consumption monitoring equipment and method |
| CN109917720A (en) * | 2019-04-04 | 2019-06-21 | 中国石油化工股份有限公司 | In-service steel pipe stray electrical current prison detection and cathodic protection power control and method |
| CN110042399A (en) * | 2019-05-16 | 2019-07-23 | 重庆市机电设计研究院 | A kind of cathode protection device |
| CN110030497A (en) * | 2019-05-16 | 2019-07-19 | 重庆市机电设计研究院 | A kind of cathodic protection on-line monitoring early warning system |
| CN110079812A (en) * | 2019-05-28 | 2019-08-02 | 中海石油气电集团有限责任公司 | A kind of intelligent cathode monitoring for protection device of multi-source data coupling auxiliary |
| CN110230062B (en) * | 2019-06-21 | 2021-05-14 | 中国葛洲坝集团电力有限责任公司 | Corrosion automatic tracking monitoring system based on expert database deviation correction |
| CN110609221A (en) * | 2019-11-05 | 2019-12-24 | 西南石油大学 | Automatic monitoring device for pipeline insulating joint and application method thereof |
| CN112609185A (en) * | 2021-01-05 | 2021-04-06 | 济宁中石油昆仑能源有限公司 | Intelligent monitoring system for oil gas steel pipeline yin protection |
| CN112981417A (en) * | 2021-02-18 | 2021-06-18 | 呼和浩特中燃城市燃气发展有限公司 | Automatic monitoring system for gas pipeline cathode protection test |
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