CN102199774A - Data collecting apparatus, monitoring management system and monitoring method for cathodic protection - Google Patents
Data collecting apparatus, monitoring management system and monitoring method for cathodic protection Download PDFInfo
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- CN102199774A CN102199774A CN 201010131691 CN201010131691A CN102199774A CN 102199774 A CN102199774 A CN 102199774A CN 201010131691 CN201010131691 CN 201010131691 CN 201010131691 A CN201010131691 A CN 201010131691A CN 102199774 A CN102199774 A CN 102199774A
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Abstract
The invention discloses a data collecting apparatus for cathodic protection, which comprises a CPU (central processing unit) used for sampling a voltage and/or current, a data memory used for storing the voltage and/or current acquired by multiple sampling of the CPU, and a wireless communication unit used for sending the voltage and/or current acquired by sampling to a data central server with an appointed IP (internet protocol) address. The invention also discloses a monitoring management system and a monitoring method for cathodic protection. The invention can realize the centralized monitoring and managing of running parameters and protection effect of an electric method protection system for a pipeline, guarantee reliability and authenticity of cathodic protection effect testing data, effectively improve running management level of cathodic protection, and lower managing and running cost of the cathodic protection system. The data collecting apparatus provided by the invention has the advantages of simple circuit design, reliable performance and low cost. The invention also sufficiently considers field use conditions, is suitable for field requirement and is convenient to install and manage.
Description
Technical field
The present invention relates to the cathode protection technology field in the electro-chemical protection; and data gathering, GPRS wireless data transmission and data processing technique particularly relate to a kind of galvanic protection data collector, monitoring management system and monitoring method thereof in the application in cathode protection technology field.
Background technology
Buried pipeline (structure) anticorrosion mostly adopts this proven technique comparatively of galvanic protection at present.But in actual moving process, the quality of protection effect is from the timely and correct monitoring of anticathode current potential.Traditional cathode potential monitoring method adopts regular manual type to measure.Because pipeline distributed areas geographical environment wide, along the line is complicated and changeable, not only waste great amount of manpower and material resources and financial resource, and the manual detection difficulty is big, test period is long, precision is low, cause the error of making a strategic decision and managing, increase the running cost of pipeline or cause potential safety hazard, even accident and loss.
Summary of the invention
The technical problem to be solved in the present invention is for defective such as overcome manual measurement cathode potential cost height in the prior art, difficulty is big, the cycle is long, precision is low, and a kind of galvanic protection data collector, monitoring management system and monitoring method thereof are provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of galvanic protection data collector, its characteristics are that it comprises:
One CPU is used for sampled voltage and/or electric current;
One data-carrier store is used to store voltage and/or the electric current that many samplings of CPU obtain;
One radio communication unit is used for the data center server that voltage that described sampling is obtained and/or electric current send to the assigned ip address.
Preferably, this device also comprises a PMU, is used for powering to radio communication unit.
Preferably, this radio communication unit is the GPRS communication unit.
Another technical scheme of the present invention is: a kind of galvanic protection monitoring management system, its characteristics are that it comprises some described galvanic protection data collectors that are distributed in different nodes; And a data center server, be used to deposit the data that radio communication unit sends; This system also comprises an alarm unit, is used for voltage and/or electric current that analysis and judgement data collector sampling obtains, when the voltage of certain node and/or electric current exceed when pre-conditioned, this node is reported to the police.
Preferably, this system also comprises a statistics display unit, is used to add up and show the data of each node, comprises maximum value, minimum value, mean value, the root mean square value of voltage and/or electric current, and the Failure count of each node, unusual number of times and abnormal time.
Preferably, this system also comprises a node locating unit, when being used to report to the police on numerical map or satellite photo the geographical position of identification nodes.
Preferably, this system also comprises a warning relating module, is used to be provided with managerial personnel's E-mail address or cell-phone number, and system sends related data automatically and reminds when its node failure of administering.
Another technical scheme of the present invention is: a kind of monitoring method of described galvanic protection monitoring management system, and its characteristics are that it may further comprise the steps:
S
1, CPU is waken up by pps pulse per second signal and sampled voltage and/current signal and handle, deposit data-carrier store in;
S
2, when data-carrier store is filled with the data of predetermined number, CPU starts wireless communication module, voltage and/or electric current is sent to the data center server of assigned ip address;
S
3, alarm unit judges when the voltage of certain node and/or electric current and exceeds when pre-conditioned, this node is reported to the police.
Preferably, step S
3In, also comprise when reporting to the police the step in the geographical position of identification nodes on numerical map or satellite photo.
Preferably, this method also comprises E-mail address or the cell-phone number that managerial personnel are set, the step that system sends related data automatically and reminds when its node failure of administering.
Positive progressive effect of the present invention is: the present invention can realize the concentrated supervision and the management of pipeline electrical method securing system operating parameter and protection effect; guarantee the reliability and the verity of galvanic protection measure of merit data; can effectively improve the galvanic protection operation and management level, reduce the management and the working cost of cathodic protection system.And data collector design circuit of the present invention is simple, dependable performance, cost are low.Only form, be equipped with an action button and a LED operation indication by 4 integrated chips and GPRS communication module.Taken into full account on-the-spot working conditions, suitable field requirement is convenient to install and management.The present invention also under the prerequisite that guarantees stability, reliability, has satisfied simple and convenient user operation and ease for use.The present invention has also solved the design of low consumption circuit and the clock synchronization issue of each distributed points.
Further, adopt user of the present invention not limited by time and spatial, on Internet enabled PC, can pass through the server Web page, check or download the various data and the chart of each detective pole.Warning is related to be provided with, can be when it to administer node failure, and system can send the warning related data by e-mail or note automatically, the timely prompting.
Description of drawings
Fig. 1 is the structural representation of the data collector of preferred embodiment of the present invention.
Fig. 2 is the connection diagram of the data collector field external electrode of preferred embodiment of the present invention.
Fig. 3 is the structural representation of the monitoring management system of preferred embodiment of the present invention.
Fig. 4-the 6th, the surface chart of the monitoring management system software of preferred embodiment of the present invention.
Fig. 7 is the schema of monitoring method of the monitoring management system of preferred embodiment of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
(1) data collector
Shown in Fig. 1-6, galvanic protection data collector of the present invention comprises a CPU, is used for sampled voltage and/or electric current; One data-carrier store is used to store voltage and/or the electric current that many samplings of CPU obtain; One radio communication unit is used for the data center server that voltage that described sampling is obtained and/or electric current send to the assigned ip address.
In the present embodiment, CPU1 selects high-performance micro-chip PIC16F873A for use, be Microchip company release based on 8 14 RISC order set of high-performance, Harvard's bus and two-stage instruction stream structure micro-chip.This device has 20 I/O programmable ports, and port current is up to 25mA.Inside comprises 3 timers, 5 path 10 position A/D converters, the output of 2 road pwm pulses, 13 interrupt source, I
2C and SPI serial port bus port, general synchronous and asynchronous transceiver USART, house dog etc.Resource is abundanter, can satisfy compact, stable design requirements.Data-carrier store 3 is selected 64K data-carrier store 24LC256 for use, is the 512K position I of Microchip company
2The compatible serial EEPROM of C.Has the function that 128 byte pages write and read at random in whole array.Comprise the quick writing speed of 5ms, clock rate is 400KHz, operating voltage be 2.5V to 5.5V, temperature range is-40 ℃ to+85 ℃.Be applicable to the field that reduce power consumption, little space and the data storage function do not lost are had higher requirements.It is the splendid pin-saving chip of data collector.And radio communication unit is selected GPRS communication module 5 for use, is specially SIM300C (commercially available prod), and embedded ICP/IP protocol stack based on GSM/GPRS900/1800/1900MHz three frequently, adopts the dual inline type plate that plate is connected.Support class2,, satisfy GSM 2/2+ standard, have RS 232 level, directly link to each other with micro-chip by the AT instruction control.
The present invention can also comprise a signal processing unit 2, selects the MCP6044 four-operational amplifier of Microchip company for use, has gain stabilization, track to track I/O function, is to use the optimal selection of battery powered low current, low voltage application.Worker's voltage range is low to moderate 1.4 volts from 5.5 volts, the gain bandwidth product (GBWP) of the gain stabilization of 14kHz, and 1 microampere maximum static current makes circuit keep lower power consumption simultaneously.The working temperature of device is from subzero 40 degrees centigrade to 85 degrees centigrade, and typical quiescent current is 600 to receive peace, thus extending battery life.By the second-order low-pass filter that MCP6044 makes up, effectively eliminate high frequency noise and stray current enters measuring unit.To guarantee that data all are effectively with accurately in whole useful range.Can also comprise a battery management unit 4, select LDO (the linear voltage-stabilizing device of low pressure) MIC29302 device for use, this is a kind of high precision, low electric leakage voltage-stabilizing device, its outward current reaches 2A, give the GPRS module by CPU control output 4V voltage, this device can filter out the undesired signal of much importing into by power source circuit, can satisfy the requirement of GPRS modular power source.Above-mentioned each unit is independently controlled by software by the high-performance micro-chip, realizes low-power dissipation power supply management and clock synchronization.
The A/D converter passage 0 (RA0) of CPU connects the signal processing unit voltage signal, and A/D converter passage 1 (RA1) connects the signal processing unit current signal, and A/D converter passage 2 (RA2) connects the signal processing unit battery voltage signal.I
2C serial port bus port (RC3, RG4) connects the 64K data-carrier store.Timer 1 (RC0, RC1) connects the 32.768KHz clock crystal oscillator, obtains at interval 4 seconds pulse to wake CPU up through 16 frequency divisions of timer 1.General synchronous and asynchronous transceiver USART (RC6, RC7) connects the GPRS communication module.Open collector port (RA4) meets the MIC29302 of battery management unit, is used to control the power supply of GPRS communication module.The power supply of signal processing unit and 64K data-carrier store is provided by CPU output port (RB5, RB4) respectively, realizes the low-power dissipation power supply management.When CPU is in sleep state (87.5% working hour), electric current is less than below the 50 μ A.
This device has 2 to measure passage: first is (voltage measurement) of measuring cathode voltage; Second is (current measurement) of measuring anodic current.Gathering device of the present invention in use, they can be to two kinds of different field measurements to outside on-the-spot connection, promptly single voltage measurement, voltage and current are measured two different connections.Single voltage is mainly used in the impressed current protection mode, and while measuring voltage and electric current can be used for the sacrificial protection mode.During single voltage measurement, device can be measured the voltage between buried metal and the reference electrode.An one splicing ear 12 links with reference electrode, and splicing ear 11,13 links with buried metal pipeline in the lump.When voltage and current was measured, device can be measured voltage between electric current between sacrificial anode piece and the buried metal structure and reference electrode and the buried metal structure.Its splicing ear 12 links with reference electrode, and splicing ear 12 links with buried metal pipeline, and splicing ear 11 links with the sacrificial anode piece.
(2) data collecting system
Galvanic protection monitoring management system of the present invention as shown in Figure 3 comprises some galvanic protection data collectors 101 that are distributed in different nodes; And a data center server 102, be used to deposit the data that radio communication unit sends; This system also comprises an alarm unit 106, is used for voltage and/or electric current that analysis and judgement data collector sampling obtains, when the voltage of certain node and/or electric current exceed when pre-conditioned, this node is reported to the police.This system can also comprise a statistics display unit 104, is used to add up and show the data of each node, comprises maximum value, minimum value, mean value, the root mean square value of voltage and/or electric current, and the Failure count of each node, unusual number of times and abnormal time.This system can also comprise a node locating unit 103, when being used to report to the police on numerical map or satellite photo the geographical position of identification nodes.And a warning associative cell 105, being used to be provided with managerial personnel's E-mail address or cell-phone number, system sends related data automatically and reminds when its node failure of administering.Wherein, the alarm unit of native system, warning associative cell, node locating unit and statistics display unit can adopt the method for software programming to realize when specific implementation, do not repeat them here.It among Fig. 4-6 specific implementation in the present embodiment.
It is on the WinNet2003 platform that the software of present embodiment is realized, adopts SQL Server 2005 and .Net2008 development environment to work out.Adopt the system management software of the present invention (being installed on the data center server) can monitor and add up the data of each point, comprise maximum, minimum value, mean value, root mean square value, Failure count, unusual number of times and abnormal time.In time show Failure Alarm and identifying its geographical position on the numerical map or on the satellite photo.The user is not limited by time and spatial, can pass through the Web page on Internet enabled PC, checks or download the various data and the chart of each detective pole.Make the galvanic protection of gas transmission and distribution pipeline reach safe and reliable operation purpose.
Its function is divided into mainly that user data is browsed and download and the management function two parts of Data centre.Browsing data: after clicking Subscriber Unit, pipe network point, single detective pole or option such as whole successively, can browse the branch day data of a certain period, certain day time data and Data View thereof, as Fig. 4,5.Data are downloaded: click download button and can download corresponding data and curve.Nodal information and location: click node locating, can show the information and the geographical position of this node, as Fig. 6.
Software also has Data centre's management function, and as node administration: node adds, revises and deletion.It is related to report to the police: user's electronic email address or managerial personnel's cell-phone number can be set, and system can send related data automatically when it administers node failure, in time reminds.Visit diary: be convenient to the portal management personnel and in time understand flowing of access and access object.Data management: the related data of all kinds of application forms, operation instructions, galvanic protection etc. is provided for the user.User suggestion: the interaction platform that provides for the user.User management: user management is by the operations such as interpolation, authority setting and deletion of the managerial personnel of Data centre to the application user.
Native system can improve the protection effect supervision ability and the level of management of cathodic protection system.Particularly provide technical support to dynamic Failure Analysis and the management that PERIODIC INTERFERENCE produced.
(3) monitoring method
The present invention also provides the monitoring method of galvanic protection monitoring management system, may further comprise the steps: step 1001, CPU wake up by pps pulse per second signal and sampled voltage and/current signal and handling, deposit data-carrier store in; When step 1002, data-carrier store were filled with the data of predetermined number, CPU started wireless communication module, voltage and/or electric current was sent to the data center server of assigned ip address; Step 1003, alarm unit are judged when the voltage of certain node and/or electric current and are exceeded when pre-conditioned, and this node is reported to the police.Be that example describes with single voltage measurement in the present embodiment.
High-performance micro-chip (CPU) electrifying startup and initialize be laggard goes into the sleep state.
1), waits for 4 seconds and wakes up that it is that 16 position digital signals deposit the cpu data register in that the RB5 port of CPU starts A/D converter passage 0 (RA0) signal conversion voltage to signal processing unit power supply back by pps pulse per second signal.The RB5 port outage of CPU enters sleep state.
2), repeating step 1) after 15 times (1 minute), 15 secondary data are done intermediate value average treatment (a kind of known data processing method, do not do give unnecessary details at this), the RB4 port of CPU is given the power supply of 64K data-carrier store, average data is deposited in the corresponding data unit of 24LC256.The RB4 port outage of CPU enters sleep state.
3), repeating step 1) and step 2) after 1440 times (24 hours), CPU open collector port (RA4) is connected the MIC29302 of battery management unit, gives the power supply of GPRS communication module.And start GPRS communication networking program, after the success, voltage data cut apart respectively be packaged into the data center server that 45 fixed-length data bags and fixed length auxiliary data bag are sent to the assigned ip address.When causing data to send, will send once more in next day because of network or data center server reason.Still can't send after 9 days, collector will automatically reset.Enter sleep state.
4), repeat 1) step, 2) step and 3) step.
5), alarm unit is judged when the voltage of certain node and/or electric current and is exceeded when pre-conditioned, this node is reported to the police, wherein pre-conditionedly can set up condition according to actual needs on their own, such as having exceeded the upper voltage limit that allows and lower value etc. for those skilled in the art.
Introduce the clock synchronization design of this monitoring method below.In the traditional way, the clock synchronization issue of each distributed points data collector all disposes real-time clock usually, and this method has not only improved the manufacturing cost of device, but also has increased the expense of the device power consumption and the communication resource.The present invention only solves with the 32.768KHz clock crystal oscillator.1440 (minute) individual data are to be stored in the data-carrier store in the storehouse mode, the data that are last minute at first send, data center server is in case determine the actual samples moment of first data of acceptance, just can realize clock synchronization, and walk time error and can not add up, precision can be controlled in 0.1 second.Concrete method of calculation are: actual samples moment=server accept first data the moment-consume when network one way data transmission time-delay-GPRS communication module is networked.
Wherein: the moment that server is accepted first data is: the time at that time of computer; Consume during the networking of GPRS communication module and be: data collector is finished the data gathering of last minute to starting the GPRS communication module and networking the successfully timed interval of first data of back transmission.This timed interval comprises the time that the auxiliary data bag sends to server.The time-delay of network one way data transmission is: the transmission intercal of 46 fixed-length data bags/92.
Above-mentioned steps 1)-5), each step specific implementation in practice is those skilled in the art's routine techniques means, is not inventive point of the present invention place.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.
Claims (10)
1. galvanic protection data collector is characterized in that it comprises:
One CPU is used for sampled voltage and/or electric current;
One data-carrier store is used to store voltage and/or the electric current that many samplings of CPU obtain;
One radio communication unit is used for the data center server that voltage that described sampling is obtained and/or electric current send to the assigned ip address.
2. data collector as claimed in claim 1 is characterized in that this device also comprises a PMU, is used for powering to radio communication unit.
3. data collector as claimed in claim 1 is characterized in that, this radio communication unit is the GPRS communication unit.
4. a galvanic protection monitoring management system is characterized in that, it comprises some galvanic protection data collectors as claimed in claim 1 that are distributed in different nodes; And a data center server, be used to deposit the data that radio communication unit sends; This system also comprises an alarm unit, is used for voltage and/or electric current that analysis and judgement data collector sampling obtains, when the voltage of certain node and/or electric current exceed when pre-conditioned, this node is reported to the police.
5. galvanic protection monitoring management system as claimed in claim 4; it is characterized in that; this system also comprises a statistics display unit; be used to add up and show the data of each node; the maximum value, minimum value, mean value, the root mean square value that comprise voltage and/or electric current, and the Failure count of each node, unusual number of times and abnormal time.
6. galvanic protection monitoring management system as claimed in claim 4 is characterized in that, this system also comprises a node locating unit, when being used to report to the police on numerical map or satellite photo the geographical position of identification nodes.
7. galvanic protection monitoring management system as claimed in claim 4; it is characterized in that; this system also comprises a warning relating module, is used to be provided with managerial personnel's E-mail address or cell-phone number, and system sends related data automatically and reminds when its node failure of administering.
8. the monitoring method of a galvanic protection monitoring management system as claimed in claim 4 is characterized in that, it may further comprise the steps:
S
1, CPU is waken up by pps pulse per second signal and sampled voltage and/current signal and handle, deposit data-carrier store in;
S
2, when data-carrier store is filled with the data of predetermined number, CPU starts wireless communication module, voltage and/or electric current is sent to the data center server of assigned ip address;
S
3, alarm unit judges when the voltage of certain node and/or electric current and exceeds when pre-conditioned, this node is reported to the police.
9. monitoring method as claimed in claim 8 is characterized in that step S
3In, also comprise when reporting to the police the step in the geographical position of identification nodes on numerical map or satellite photo.
10. monitoring method as claimed in claim 8 is characterized in that, this method also comprises E-mail address or the cell-phone number that managerial personnel are set, the step that system sends related data automatically and reminds when its node failure of administering.
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| CN 201010131691 CN102199774A (en) | 2010-03-24 | 2010-03-24 | Data collecting apparatus, monitoring management system and monitoring method for cathodic protection |
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| CN 201010131691 CN102199774A (en) | 2010-03-24 | 2010-03-24 | Data collecting apparatus, monitoring management system and monitoring method for cathodic protection |
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| CN102392256A (en) * | 2011-12-26 | 2012-03-28 | 贵州大学 | Wind/solar/electric complementary network anticorrosion system for buried steel pipelines |
| CN104928686A (en) * | 2015-05-08 | 2015-09-23 | 中国石油化工股份有限公司 | Acquisition system of cathode protection data of buried pipeline |
| CN104928684A (en) * | 2015-05-08 | 2015-09-23 | 中国石油化工股份有限公司 | Buried pipeline cathode protection data transmission system |
| CN105040001A (en) * | 2015-07-06 | 2015-11-11 | 中国石油化工股份有限公司 | Cathode protection data collecting device for buried pipeline |
| US9350637B2 (en) | 2013-03-28 | 2016-05-24 | Tata Consultancy Services Limited | Systems and methods for generating and implementing monitoring solutions for a computing-based infrastructure |
| CN106530650A (en) * | 2015-09-11 | 2017-03-22 | 成都娇子意航星科技有限公司 | Wireless data transmission based long distance pipeline cathode protection measurement and control method |
| CN108546952A (en) * | 2018-04-20 | 2018-09-18 | 上海银帆信息科技有限公司 | A kind of low-power consumption buried pipeline cathodic protection remote monitoring terminal |
| 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 |
| CN110042402A (en) * | 2019-05-16 | 2019-07-23 | 重庆市机电设计研究院 | A kind of cathodic protection on-line monitoring method for early warning |
| CN110656335A (en) * | 2019-11-01 | 2020-01-07 | 贵州电网有限责任公司 | Transformer substation grounding device cathode protection potential detection system and detection method thereof |
| CN110893065A (en) * | 2018-09-12 | 2020-03-20 | 武汉苏泊尔炊具有限公司 | Pot body, processing method of pot body and cooking utensil |
| CN115558934A (en) * | 2022-07-12 | 2023-01-03 | 浙江浙能天然气运行有限公司 | Constant potential rectifier fuzzy control method based on network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102392256A (en) * | 2011-12-26 | 2012-03-28 | 贵州大学 | Wind/solar/electric complementary network anticorrosion system for buried steel pipelines |
| US9350637B2 (en) | 2013-03-28 | 2016-05-24 | Tata Consultancy Services Limited | Systems and methods for generating and implementing monitoring solutions for a computing-based infrastructure |
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| CN106530650A (en) * | 2015-09-11 | 2017-03-22 | 成都娇子意航星科技有限公司 | Wireless data transmission based long distance pipeline cathode protection measurement and control method |
| CN108546952A (en) * | 2018-04-20 | 2018-09-18 | 上海银帆信息科技有限公司 | A kind of low-power consumption buried pipeline cathodic protection remote monitoring terminal |
| CN110893065A (en) * | 2018-09-12 | 2020-03-20 | 武汉苏泊尔炊具有限公司 | Pot body, processing method of pot body and cooking utensil |
| CN110893065B (en) * | 2018-09-12 | 2023-04-25 | 武汉苏泊尔炊具有限公司 | Pot body, processing method of pot body and cooking utensil |
| 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 |
| CN110042402A (en) * | 2019-05-16 | 2019-07-23 | 重庆市机电设计研究院 | A kind of cathodic protection on-line monitoring method for early warning |
| CN110656335A (en) * | 2019-11-01 | 2020-01-07 | 贵州电网有限责任公司 | Transformer substation grounding device cathode protection potential detection system and detection method thereof |
| CN115558934A (en) * | 2022-07-12 | 2023-01-03 | 浙江浙能天然气运行有限公司 | Constant potential rectifier fuzzy control method based on network |
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Application publication date: 20110928 |