CN106657205A - Photovoltaic power station data acquisition and communication method - Google Patents
Photovoltaic power station data acquisition and communication method Download PDFInfo
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- CN106657205A CN106657205A CN201610327654.4A CN201610327654A CN106657205A CN 106657205 A CN106657205 A CN 106657205A CN 201610327654 A CN201610327654 A CN 201610327654A CN 106657205 A CN106657205 A CN 106657205A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The invention provides a photovoltaic power station data acquisition and communication method, comprising the following steps: a) establishing tcp/ip connection with the equipment of each photovoltaic power station and reading the configuration information of the photovoltaic power station; b) communicating with the photovoltaic power station according to the preset communication protocol and accessing the data information of the photovoltaic power station; c) analyzing the accessed data information according to the preset protocol; d) saving the decoded data information into a corresponding database and updating the corresponding data table; and repeating the step b at a set time interval. According to the photovoltaic power station data acquisition and communication method of the invention, the stability and accuracy of data transmission can be increased and interference from disqualified data can be excluded.
Description
Technical field
The invention belongs to field of photovoltaic technology, more particularly to a kind of data acquisition communication means of photovoltaic plant.
Background technology
Problem of environmental pollution is increasingly serious, and solar energy is used as regenerative resource, because of the economy of the unlimitedness of its reserves, the generality for existing, the spatter property that utilizes and practicality, is increasingly favored by people.Photovoltaic industry, active development solar energy are greatly developed, unprecedented attention has been obtained in the world, it has also become the important component part of various countries' strategy of sustainable development.
If carrying out monitor in real time to the photovoltaic plant of various places, O＆M cost not only can be reduced, can also in real time understand the ruuning situation in each power station.But, if carrying out monitor in real time to the photovoltaic plant of various places, the data for needing substantial amounts of photovoltaic plant are transmitted, and this reliability to data communication, stability and high efficiency propose higher requirement.
Therefore, it is necessary to providing one kind has the features such as efficient, stable, data are accurate, and the data acquisition communication means for providing the reliable photovoltaic plant supported for photovoltaic power station system.
The content of the invention
It is an object of the invention to provide a kind of have the features such as efficient, stable, data are accurate, and the data acquisition communication means of the photovoltaic plant of reliable support is provided for photovoltaic power station system.
Technical scheme is as follows：A kind of data acquisition communication means of photovoltaic plant comprises the steps：
The equipment of a and each photovoltaic plant sets up tcp/ip connections, reads the configuration information of the photovoltaic plant；
B is communicated with the photovoltaic plant according to the communication protocol of setting, reads the data message of the photovoltaic plant；
C, the data message to reading are parsed according to setting agreement；
D, by parsing after the data message be stored in corresponding database, and update corresponding tables of data, and be spaced setting time repeat step b.
Preferably, the data message include log-on data information, fault alarm information and distant metrical information.
Preferably, step b comprises the steps：
Test data frame is sent, communication test is carried out；
Send data transfer and stop frame, stop the data transfer with the photovoltaic plant；
Activation transmission frame is sent, starts the data transfer with the photovoltaic plant；
Order is always summoned in transmission, reads all of remote measurement of the photovoltaic plant and remote signalling amount.
Preferably, in step c, the data message to receiving carries out the verification such as length, after confirmation is errorless, remote signalling and telemetry is parsed according to setting agreement.
Preferably, step d comprises the steps：
The data message after by parsing is put in map or list containers, is used so that data preserve thread；
According to IEC104 agreements, 10-15 minute repeat steps b are spaced.
Preferably, during the preservation thread process of the fault alarm information, comprise the steps：
Thread poll list containers, and determine whether new fault alarm information input；
If it has, then taking out the fault alarm information, and it is saved into fault alarm information tables of data.
Preferably, during the preservation thread process of the distant metrical information, comprise the steps：
Thread poll list containers, and determine whether new remote measurement amount information input；
If it has, then taking out the distant metrical information, and distant metrical information is organized into into xml document, as parameter call storing process, inserts tables of data.
Preferably, during the preservation thread process of the distant metrical information, comprise the steps：
Thread poll map containers, and determine whether new header box data input；
If it has, then taking out the header box data, it would be desirable to after the header box data combination of real-time update collects, database execution is sent to.
Preferably, in step d, by parsing after the data message be stored in corresponding database, and update the process of corresponding tables of data and comprise the steps：
The multiple data volumes that will be inserted set up xml document root node according to setting form composition xml document；
All telemetries are put into the xml document in cyclic process；
Using the xml document as parameter, storing process is called, data are saved into tables of data.
The beneficial effects of the present invention is：The data acquisition communication means of the photovoltaic plant not only can improve the stability and accuracy of data transfer, but also can exclude the interference for not meeting authority data, and during network service, adopt based on obstruction mode, the technological means that select models are supplemented, by both mode receiving data is combined so as to can both improve efficiency, and can complete receiving data.
Description of the drawings
Fig. 1 is the FB(flow block) of the data acquisition communication means of photovoltaic plant provided in an embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is not intended to limit the present invention only to explain the present invention.
The description of specific distinct unless the context otherwise, the element and component in the present invention, quantity both can be in the form of single, it is also possible in the form of multiple, and the present invention is not defined to this.Although the step in the present invention is arranged with label, it is not used to limit the precedence of step, the order of step or the execution of certain step unless expressly stated needs based on other steps, and the relative rank of otherwise step is adjustable.It is appreciated that term "and/or" used herein is related to and covers one of associated Listed Items or one or more of any and all possible combination.
Fig. 1 is referred to, is the FB(flow block) of the data acquisition communication means of photovoltaic plant provided in an embodiment of the present invention.The data acquisition communication means 100 of photovoltaic plant provided in an embodiment of the present invention can realize that a Cloud Server gathers the data message of tens photovoltaic plants simultaneously.Specifically, the data acquisition communication means 100 of the photovoltaic plant comprises the steps：
The equipment of step S1 and each photovoltaic plant sets up tcp/ip connections, reads the configuration information of the photovoltaic plant.
Specifically, in initialization procedure, the network connection set up between Cloud Server and each photovoltaic plant by internet.For example, the socket with the photovoltaic plant is set up, port connection is intercepted, the data communication realized therebetween is connected by the tcp/ip set up with the photovoltaic plant equipment.
Step S2 is communicated with the photovoltaic plant according to the communication protocol of setting, reads the data message of the photovoltaic plant.
Specifically, in step s 2, the data message include but be not limited to log-on data information, fault alarm information and distant metrical information.Preferably, the communication protocol is IEC104 agreements.The IEC104 agreements are the agreements towards the communication of power station big data quantity, it is also complicated difficult agreement generally acknowledged in the industry, the data volume in one general power station has thousand of, it is per second to have substantial amounts of data real-time update, and, the technologies such as multithreading, stl are adopted in program, optimization structure and handling process, so as to obtain the data transfer of efficient stable.
Specifically, step S2 may include steps of：
Test data frame is sent, communication test is carried out；
Send data transfer and stop frame, stop the data transfer with the photovoltaic plant；
Activation transmission frame is sent, starts the data transfer with the photovoltaic plant；
Order is always summoned in transmission, and all of remote measurement of the photovoltaic plant and remote signalling amount are read in real time.
It should be noted that the interference problem in order to solve not meeting authority data, during test data frame is sent, if communication test does not have Chen Gong, repeatedly sends several times, until receiving normal response, so as to till verifying that communication is normal；During data transfer stopping frame, the original data transfer of stopping photovoltaic plant being sent, need repetition to send the data transfer and stop frame, until no longer receiving till disturbing data generation.And, after the communication test success of the test data frame, send activation transmission frame, log-on data transmission, so as to start normal data transfer.
Step S3, the data message to reading are parsed according to setting agreement.
Specifically, in step S3, the data message to receiving carries out the verification such as length, after confirmation is errorless, remote signalling and telemetry is parsed according to setting agreement.
Step S4, by parsing after the data message be stored in corresponding database, and update corresponding tables of data, and be spaced setting time repeat step S2.
Specifically, step S4 comprises the steps：
The data message after by parsing is put in map or list containers, is used so that data preserve thread；
According to IEC104 agreements, 10-15 minute repeat steps S2 are spaced.
Because the data traffic of photovoltaic plant is big, once always summoning may have tens of thousands of bytes, and this efficiency and robustness to program proposes requirement.If single may receive Volume data not exclusively using obstruction mode, if individually adopting select models, again can due to poll with etc. efficiency to be reduced.In order to solve the above problems, in embodiments of the present invention, take based on obstruction mode, the technological means that select models are supplemented, mode receiving data is combined so as to can both improve efficiency by both, and can complete receiving data.
For example, if the insertion of big data quantity is using storing process is called, using xml document as parameter.The real-time update to tens fields in header box table is completed in a sql sentence.Can realize that the second level of big data quantity refreshes on sql sever databases for monitoring system, there is provided certain power-assisted.Concrete processing mode is that the thousand of data volumes that will be inserted constitute xml document according to certain form, recalls the storing process of sql server lane databases, and actual measurement proves the instantaneous insertion that can realize long-range big data quantity.
Therefore, in step s 4, by parsing after the data message be stored in corresponding database, and update the process of corresponding tables of data and can also comprise the steps：
The multiple data volumes that will be inserted set up xml document root node according to setting form composition xml document；
All telemetries are put into the xml document in cyclic process；
Using the xml document as parameter, storing process is called, data are saved into tables of data.
It should be noted that for the different data messages, different thread process modes can be taken, such as：During the preservation thread process of the fault alarm information, comprise the steps：
Thread poll list containers, and determine whether new fault alarm information input；
If it has, then taking out the fault alarm information, and it is saved into fault alarm information tables of data.
During the preservation thread process of the distant metrical information, may include steps of：
Thread poll list containers, and determine whether new remote measurement amount information input；
If it has, then taking out the distant metrical information, and distant metrical information is organized into into xml document, as parameter call storing process, inserts tables of data.
And, further, during the preservation thread process of the distant metrical information, can also comprise the steps：
Thread poll map containers, and determine whether new header box data input；
If it has, then taking out the header box data, it would be desirable to after the header box data combination of real-time update collects, database execution is sent to.
Compared to prior art, the data acquisition communication means 100 of the photovoltaic plant that the present invention is provided not only can improve the stability and accuracy of data transfer, but also can exclude the interference for not meeting authority data, and during network service, adopt based on obstruction mode, the technological means that select models are supplemented, mode receiving data is combined so as to can both improve efficiency by both, and can complete receiving data.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, can in other specific forms realize the present invention.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by claims rather than described above is limited, it is intended that all changes in the implication and scope of the equivalency of claim that will fall are included in the present invention.Any reference in claim should not be considered as and limit involved claim.
In addition, it should be understood that, although this specification is been described by according to embodiment, but not each embodiment only includes an independent technical scheme, this narrating mode of specification is only for clarity, those skilled in the art should using specification as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, formed it will be appreciated by those skilled in the art that other embodiment。
Claims (9)
1. the data acquisition communication means of a kind of photovoltaic plant, it is characterised in that：Comprise the steps：
The equipment of a and each photovoltaic plant sets up tcp/ip connections, reads the configuration information of the photovoltaic plant；
B is communicated with the photovoltaic plant according to the communication protocol of setting, reads the data message of the photovoltaic plant；
C, the data message to reading are parsed according to setting agreement；
D, by parsing after the data message be stored in corresponding database, and update corresponding tables of data, and be spaced setting time repeat step b.
2. the data acquisition communication means of photovoltaic plant according to claim 1, it is characterised in that：The data message include log-on data information, fault alarm information and distant metrical information.
3. the data acquisition communication means of photovoltaic plant according to claim 2, it is characterised in that：Step b comprises the steps：
Test data frame is sent, communication test is carried out；
Send data transfer and stop frame, stop the data transfer with the photovoltaic plant；
Activation transmission frame is sent, starts the data transfer with the photovoltaic plant；
Order is always summoned in transmission, reads all of remote measurement of the photovoltaic plant and remote signalling amount.
4. the data acquisition communication means of photovoltaic plant according to claim 2, it is characterised in that：In step c, the data message to receiving carries out the verification such as length, after confirmation is errorless, remote signalling and telemetry is parsed according to setting agreement.
5. the data acquisition communication means of photovoltaic plant according to claim 2, it is characterised in that：Step d comprises the steps：
The data message after by parsing is put in map or list containers, is used so that data preserve thread；
According to IEC104 agreements, 10-15 minute repeat steps b are spaced.
6. the data acquisition communication means of photovoltaic plant according to claim 5, it is characterised in that：During the preservation thread process of the fault alarm information, comprise the steps：
Thread poll list containers, and determine whether new fault alarm information input；
If it has, then taking out the fault alarm information, and it is saved into fault alarm information tables of data.
7. the data acquisition communication means of photovoltaic plant according to claim 5, it is characterised in that：During the preservation thread process of the distant metrical information, comprise the steps：
Thread poll list containers, and determine whether new remote measurement amount information input；
If it has, then taking out the distant metrical information, and distant metrical information is organized into into xml document, as parameter call storing process, inserts tables of data.
8. the data acquisition communication means of photovoltaic plant according to claim 5, it is characterised in that：During the preservation thread process of the distant metrical information, comprise the steps：
Thread poll map containers, and determine whether new header box data input；
If it has, then taking out the header box data, it would be desirable to after the header box data combination of real-time update collects, database execution is sent to.
9. the data acquisition communication means of photovoltaic plant according to claim 2, it is characterised in that：In step d, by parsing after the data message be stored in corresponding database, and update the process of corresponding tables of data and comprise the steps：
The multiple data volumes that will be inserted set up xml document root node according to setting form composition xml document；
All telemetries are put into the xml document in cyclic process；
Using the xml document as parameter, storing process is called, data are saved into tables of data.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109245956A (en) * | 2017-07-10 | 2019-01-18 | 浙江昱能科技有限公司 | A kind of monitoring method and equipment of distributed photovoltaic system |
| CN111624962A (en) * | 2020-05-19 | 2020-09-04 | 中国地质大学（武汉） | Data computer lab distribution equipment management and control system |
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Patent Citations (5)
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| CN102129466A (en) * | 2011-03-22 | 2011-07-20 | 国网电力科学研究院 | Demonstration-based photovoltaic power station testing diagnosis and forecasting database establishment method |
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| CN109245956A (en) * | 2017-07-10 | 2019-01-18 | 浙江昱能科技有限公司 | A kind of monitoring method and equipment of distributed photovoltaic system |
| CN111624962A (en) * | 2020-05-19 | 2020-09-04 | 中国地质大学（武汉） | Data computer lab distribution equipment management and control system |
| CN111624962B (en) * | 2020-05-19 | 2021-05-28 | 中国地质大学（武汉） | Data computer lab supplies distribution equipment management and control system |
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Application publication date: 20170510 |