CN102103790A - Method for acquiring electric energy information of transformer substations - Google Patents
Method for acquiring electric energy information of transformer substations Download PDFInfo
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Abstract
The invention discloses a method for acquiring electric energy information of transformer substations, which is based on the link related to acquisition of information of transformer substations in an electric energy data acquisition system. The electric energy data acquisition system comprises an electric energy terminal, a front-end processor and acquisition modules. The method for acquiring electric energy information of transformer stations comprises the following steps: S1. the acquisition modules give messages to connect the front-end processor with the electric energy terminal through channels; S2. all the acquisition modules submit applications to the front-end processor for applying locks of the channels between the front-end processor and the electric energy terminal; S3. the acquisition modules inform the electric energy terminal to reset a link; S4. the acquisition modules transmit electric energy data acquisition instructions for acquiring data; S5. the acquisition modules inform the front-end processor of opening the channel locks occupied by the acquisition modules; and S6. the acquisition modules inform the front-end processor of being cut off the connection with the channel of a corresponding electric energy terminal. The method can guarantee the serializability of a plurality of acquisition modules when being used for acquiring data of one electric energy terminal, thus the acquisition modules are not interfered mutually.
Description
Technical field
The present invention relates to acquiring electric energy information and communication technical field, the synchronous mutual exclusion flow process that especially a kind of transformer station electric energy information is gathered.
Background technology
Propelling along with national intelligent grid, the collection of power information data gradually abandoning tradition the manual metering pattern and adopt remote terminal control meter reading method, and meter reading data is sent to generated energy acquisition system of main website by modes such as GPRS, CDMA, 230M, optical fiber analyzes and use.In order to carry out data analysis application in the main website side and to monitor the electricity consumption situation in real time, just must guarantee the integrality of main website side electric power data.But network environment complicacy and the various software and hardware obstacles that are provided with for the safety that guarantees electric system all may be to cause the unstable networks latency, just because of these potential causes, make the collection of energy information become unpredictable, thereby integrality and real-time in order to guarantee acquiring electric energy information, the disaster tolerance ability that improves acquisition system becomes very urgent.
In the prior art of recent development, utilize GPRS to unite the data transmit-receive function of net or WCDMA net, at corresponding local installing acquisition terminal, and unite net or WCDMA net by GPRS, the data that acquisition terminal is gathered are sent to corresponding power private network, by acquisition system these data are resolved again, and give central server and analyze accordingly and handle.
GPRS is the standard of relevant integrated data in the european telecommunication association gsm system, it can provide the air interface transfer rate up to 115Kbps, allow some mobile subscribers can share a wireless channel simultaneously, a mobile subscriber also can use a plurality of wireless channels.Wherein, the actual user who does not send or receive packet only accounts for very little a part of Internet resources.GPRS has been arranged, and user's call set-up time shortens dramatically, and almost can accomplish " always online " (always online).Because These characteristics, the GPRS net can be the mobile data user burst data business is provided, and can connect fast, and not have the connection time delay.Be specially adapted to frequently transmit the application of small data quantity and the application of non-frequent transmission mass data.It is the means of communication of the present optimal management of power use.
The CDMA 2000lx that CHINAUNICOM releases also has same characteristics, it and GPRS are a kind of technology between the second generation and 3G (Third Generation) Moblie technology, be commonly referred to 2.5G, because it is a mixture, wherein adopt TDMA (time division multiple access (TDMA)) mode transferring voice, and adopt the mode of grouping to transmit data.
Existing transformer station electric energy information acquisition system, because manufacturer terminal is very many, the agreement that on-the-spot electric flux terminal of having installed is supported is also different, and agreement itself has serial, at one time, having a plurality of acquisition module requirements and same terminal carries out alternately.Under this background, just need seek a kind of method and guarantee that a certain terminal is executed the task and do not interrupted in the process, and the present invention formally designs in order to solve this difficult problem by other acquisition modules.
Summary of the invention
Technical matters to be solved by this invention provides a kind of method of gathering transformer station's electric energy information, guarantees that the electric flux terminal is in the atomicity problem of carrying out a certain acquisition module task.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of method of gathering transformer station's electric energy information, based on the link of relevant transformer station information acquisition in the data acquisition for electric energy system, described data acquisition for electric energy system comprises electric flux terminal, front end processor, acquisition module; Said method comprising the steps of:
S1: set up passage between acquisition module notice front end processor and the electric flux terminal and connect;
S2: the passage of each acquisition module between front end processor application and this electric flux terminal takies lock;
S3: the acquisition module notice electric flux terminal link that resets;
S4: acquisition module sends the data acquisition for electric energy order and gathers;
S5: acquisition module notice front end processor discharges the passage lock that this acquisition module takies;
S6: acquisition module notice front end processor disconnects with the passage of corresponding electric flux terminal and connecting.
As improvement, among the described step S1, front end processor mainly be in charge of and the electric flux terminal between various passages, comprise GPRS, Ethernet, serial ports, dialing.
As improvement, the generated energy acquisition terminal adopts the GPRS passage as data feedback channel, then must be terminal as client, front end processor is as service end, terminal safeguards that by the mode of heartbeat the passage between them is connected with front end processor.
As improvement, the generated energy acquisition terminal adopts Ethernet, serial ports, dialing passage as data feedback channel, then necessary terminal is as service end, front end processor is as client, front end processor initiatively initiates to connect to terminal when needed, when finishing using, passage initiatively disconnects connection, the release channel resource by front end processor.
As improvement, described acquisition module comprises timing acquiring module and real-time acquisition module, the time acquisition module mainly be responsible for the backstage and dispatch various acquisition and task acquisition controlling flow process, and according to terminal called protocol analysis electric energy data; In real time acquisition module mainly is responsible for providing the acquisition interface with user interactions, and the mode of calling survey by the user at random by hand together realizes; Timing acquiring and the collection of gathering the electric flux terminal in real time all need the exclusive access resource, and it is mutual to adopt the UDP passage to carry out the transmission of data between acquisition module and the front end processor.
As improvement, adopt asynchronous NIO technology to realize the management of UDP passage, adopt the RCP technology to realize the mutual of user interface.
As improvement, the collection communications protocol of electric flux terminal is " Guangxi 102 agreements ", stipulates that the collection of any data all must could successfully be gathered data or carry out an order through repeatedly confirming alternately; And main website be with between the terminal being the mode of question-response alternately, must be that main website is station initiatively, and the electric flux terminal is a slave station.
As improvement, among the described step S4, the data of acquisition module collection comprise electric quantity data, instantaneous flow data, requirement data, terminal clock, each Terminal Type/ammeter incident.
As improvement, mode by passage lock realizes each acquisition module monopolizing the terminal passageway resource, also be that each acquisition module wants same terminal interaction, at first must obtain the exclusive lock of this terminal passageway to the front end processor application, can carry out the collection of data if obtain the exclusive lock success then mean, otherwise can only wait for that the terminal passageway lock is released and attempts to obtain again.
The beneficial effect that the present invention is compared with prior art brought is:
Serial when the synchronous mutual exclusion flow process of transformer station's electric energy information collection of the present invention design can guarantee that a plurality of acquisition modules are gathered same electric flux terminal makes that the work between them can the phase mutual interference; Guaranteed ageing (be every kind of acquisition module can not surpass specified threshold) that a certain acquisition module occupies channel resource simultaneously to the holding time of passage, make a plurality of acquisition modules to the fair competition of channel resource as far as possible, solved the complexity problem that serial protocol is gathered effectively.
Description of drawings
Fig. 1 is a data acquisition for electric energy system construction drawing of the present invention.
Fig. 2 is the collecting flowchart figure of transformer station's electric energy information.
Fig. 3 is a main website protocol function structural drawing.
Embodiment
The invention will be further described below in conjunction with Figure of description.
As shown in Figure 1, 2, a kind of method of gathering transformer station's electric energy information, based on the link of relevant transformer station information acquisition in the data acquisition for electric energy system, described data acquisition for electric energy system comprises electric flux terminal, front end processor, acquisition module; Said method comprising the steps of:
S1: set up passage between acquisition module notice front end processor and the electric flux terminal and connect; Described acquisition module comprises timing acquiring module and real-time acquisition module, the time acquisition module mainly be responsible for the backstage and dispatch various acquisition and task acquisition controlling flow process, and according to terminal called protocol analysis electric energy data; In real time acquisition module mainly is responsible for providing the acquisition interface with user interactions, and the mode of calling survey by the user at random by hand together realizes; Timing acquiring and the collection of gathering the electric flux terminal in real time all need the exclusive access resource, and it is mutual to adopt the UDP passage to carry out the transmission of data between acquisition module and the front end processor; Adopt asynchronous NIO technology to realize the management of UDP passage, adopt the RCP technology to realize the mutual of user interface;
S2: the passage of each acquisition module between front end processor application and this electric flux terminal takies lock;
S3: the acquisition module notice electric flux terminal link that resets;
S4: acquisition module sends the data acquisition for electric energy order and gathers; The data of acquisition module collection comprise electric quantity data, instantaneous flow data, requirement data, terminal clock, each Terminal Type/ammeter incident;
S5: acquisition module notice front end processor discharges the passage lock that this acquisition module takies;
S6: acquisition module notice front end processor disconnects with the passage of corresponding electric flux terminal and connecting.
Setting up passage between acquisition module notice front end processor and the electric flux terminal connects.This step sub-process is achieved in that (A) acquisition module wants the presence of interactive terminal to front end processor inquiry; (B) if this terminal is online, then passage is set up successfully, and sub-process finishes; If terminal is not online, execution in step C then; (C) obtain the channel type of this electric flux terminal, if channel type is the GPRS passage, then terminal passageway is set up failure, finishes whole flow process; If channel type is not the GPRS passage, then front end processor is according to the concrete channel type of terminal, adopts different connected modes to initiate and connect to terminal, and backward channel sets up successfully denying, and fails then finishes whole flow process if set up passage.
The passage of each acquisition module between front end processor application and this electric flux terminal takies lock.When a plurality of acquisition modules during simultaneously to front end processor application passage exclusive lock, front end processor can decide finally according to the priority level of acquisition module and the sequencing that receives request and obtain passage lock by that acquisition module, and the result that obtains that will lock returns to all lock applicants according to functional organization's one-tenth scale-of-two message of main website protocol definition; If certain acquisition module application passage lock failure then finishes whole flow process, if success then continues step S3.
The acquisition module notice electric flux terminal link that resets.After acquisition module obtains the passage lock success, according to terminal called agreement (being example with " Guangxi 102 agreements " here) the tissue link command that resets, and be transmitted to the electric flux terminal by front end processor, terminal passageway, return the back in terminal and resolve affirmation according to terminal protocol.According to " Guangxi 102 agreements ", the process need acquisition module of the link that resets mutual back and forth three times with the electric flux terminal.Three validation-cross all by after proceed step S4, otherwise finish whole flow process.
Acquisition module sends the data acquisition for electric energy order and gathers.At first acquisition module is according to the data type that will gather of user's appointment, stipulate according to " Guangxi 102 agreements ", organize the order of corresponding data acquisition for electric energy request message to transmit and wait for terminal response by front end processor, if terminal responds has data etc. to be collected, then acquisition module continues to organize the subsequent request order according to terminal protocol, and transmits by front end processor, receives, resolves, verifies, answer no follow-up data up to terminal, acquisition module stops sending the request of collection.Acquisition module generally may reach more than 5 times or 5 times to return a complete collection of data with the interaction times of terminal in the flow process of collection energy data.
Acquisition module notice front end processor discharges the passage lock that this acquisition module takies.After the task of acquisition module is finished, acquisition module sends the order of a release channel exclusive lock immediately to front end processor, front end processor receives that the passage that this acquisition module can be occupied after the order that discharges lock discharges immediately, is convenient to other acquisition module applications and obtains this passage lock.If any abnormal conditions do not appear in a task in the process of implementation, then front end processor is understood normal release channel exclusive lock, but because front end processor and acquisition module all are programs independently, therefore and be to be undertaken alternately by the mode of network between them, the problem that front end processor is not received the release channel lock that acquisition module sends for a long time inevitably can occur.For the situation that prevents that certain passage lock is forcibly occupied by same acquisition module for a long time in the front end processor internal memory, front end processor need regularly detect each passage according to certain cycle and take situation, taken for a long time by certain acquisition module if find certain passage, then initiatively discharge this passage lock.
Acquisition module notice front end processor disconnects with the passage of corresponding electric flux terminal and connecting.After the notice front end processor release channel exclusive lock of acquisition module, acquisition module sends one immediately and notifies the front end processor order that disconnection is connected with terminal passageway to front end processor, front end processor receives that the treatment scheme after the channel attached order of disconnection is as follows: the channel type that (A) obtains corresponding electric flux terminal, if GPRS passage, then front end processor is not done any action, the normal termination of this flow process; If not the GPRS passage, then continue execution in step B; (B) if there are other acquisition modules waiting for the passage exclusive lock of this terminal correspondence of application, then front end processor is not done any action, the normal termination of this flow process; Otherwise continue execution in step C; (C), call the close () method of different passages, closing passage, the normal termination of this flow process at concrete channel type.
The operation of closing passage is necessary in above-mentioned steps, the reasons are as follows:
For the GPRS passage, for guarantee acquisition module regularly or at random send the request of collection to the electric flux terminal, terminal just must be held long connection with preposition organizational security as client, can not at will close under the front end processor normal condition with the passage between the terminal; For passages such as dialing, serial ports, Ethernets, terminal is as service end, and front end processor is as client, can be at any time initiate and connect to terminal, so the passage of these types can be finished using and just closed.Especially to the dialing passage,, charge, therefore more need to finish using and just close the release channel resource as making a phone call.
As shown in Figure 3, realize the main website agreement of transformer station's electric energy information collecting flowchart, described main website agreement comprises following function: the request of login front end processor, publish the front end processor request, heartbeat request between workstation and front end processor, the transmission terminal request of data, the request of terminal presence, multiple terminals presence request, the passage connection request, the pathway closure request, the passage lock request, the request of release channel lock, the request of workstation presence, the response of login front end processor, publish the front end processor response, heartbeat response between workstation and front end processor, the response of transmission terminal data, the response of terminal presence, multiple terminals presence response, the passage connection response, the pathway closure response, the passage lock response, the passage lock response of release busy, the response of workstation presence, remote inquiry terminal task condition responsive, the response of remote terminal task status, the request inquiry terminal nearest execution time of task, the nearest execution time of inquiry terminal task is corresponding, the remote activation terminal task, the set of request inquiry unknown terminal, unknown terminal inquiry response etc.
For difference in functionality, the main website protocol definition different data fields, the format description of major function data field is as follows:
1) before task begins, request (response) passage lock,
Data field content: terminal protocol type-terminal address-passage lock state
Passage lock state (1byte): 0x00 represents to ask passage lock failure, 0x01 to represent that the request channel locks successfully.
2) after the task termination, request discharges the shared passage lock of workstation
Data field content: terminal protocol type-terminal address-passage lock state
3) transmission terminal data
Data field content: the message of terminal protocol type-terminal address-counterpart terminal agreement
4) request station state
Data field content: workstation address numbering-workstation presence
5) inquiry terminal state
Data field content: terminal protocol type-terminal address-terminal presence
Wherein " terminal presence " field can be sky, but necessarily can not be sky in terminal presence response frame.
6) response terminal state
Data field content: terminal protocol type-terminal address-terminal presence
7) passage connects/closes
Data field content: protocol type-terminal address-channel type-channel status
Channel status (1byte): 0x00 represents to set up (closing) connection failure, and 0x01 represents to set up (closing) successful connection.
8) remote activation/stop terminal task (or response remote inquiry terminal task state)
Data field content: terminal protocol type-terminal address-mission number-control sign
9) request inquiry terminal task status
Data field content: terminal protocol type-terminal address-mission number
10) inquire about all SOT state of termination data fields
Data field content: terminal number n 1-terminal address 1-terminal 1 state of terminal protocol Class1-protocol type 1 ... terminal number n 2-terminal address 1-terminal 1 state of terminal address n1-terminal n 1 state-terminal protocol type 2-protocol type 2 ... terminal address n2-terminal n 2 states ...
11) data field request data field of nearest execution time of inquiry terminal task (once be no more than at most 50 tasks)
Data field content: task number (1byte)-terminal i d (4bytes)-mission number (2bytes)-execution time (6bytes)
12) inquiry unknown terminal request data field
The data field content:
Terminal protocol Class1 (1byte)-this protocol terminal number (1byte)-terminal address 1-terminal address 2-...... terminal protocol type 2 (1byte)-this protocol terminal number (1byte)-terminal address 1-terminal address 2-......
......
In sum, the serial when the synchronous mutual exclusion flow process of transformer station's electric energy information collection of the present invention design can guarantee that a plurality of acquisition modules are gathered same electric flux terminal makes that the work between them can the phase mutual interference; Guaranteed ageing (be every kind of acquisition module can not surpass specified threshold) that a certain acquisition module occupies channel resource simultaneously to the holding time of passage, make a plurality of acquisition modules to the fair competition of channel resource as far as possible, solved the complexity problem that serial protocol is gathered effectively.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. method of gathering transformer station's electric energy information, based on the link of relevant transformer station information acquisition in the data acquisition for electric energy system, described data acquisition for electric energy system comprises electric flux terminal, front end processor, acquisition module; It is characterized in that: said method comprising the steps of:
S1: set up passage between acquisition module notice front end processor and the electric flux terminal and connect;
S2: the passage of each acquisition module between front end processor application and this electric flux terminal takies lock;
S3: the acquisition module notice electric flux terminal link that resets;
S4: acquisition module sends the data acquisition for electric energy order and gathers;
S5: acquisition module notice front end processor discharges the passage lock that this acquisition module takies;
S6: acquisition module notice front end processor disconnects with the passage of corresponding electric flux terminal and connecting.
2. a kind of method of gathering transformer station's electric energy information according to claim 1 is characterized in that: among the described step S1, front end processor mainly be in charge of and the electric flux terminal between various passages, comprise GPRS, Ethernet, serial ports, dialing.
3. a kind of method of gathering transformer station's electric energy information according to claim 2, it is characterized in that: the generated energy acquisition terminal adopts the GPRS passage as data feedback channel, then must be that terminal is as client, front end processor is as service end, and terminal safeguards that by the mode of heartbeat the passage between them is connected with front end processor.
4. a kind of method of gathering transformer station's electric energy information according to claim 2, it is characterized in that: the generated energy acquisition terminal adopts Ethernet, serial ports, dialing passage as data feedback channel, then necessary terminal is as service end, front end processor is as client, front end processor initiatively initiates to connect to terminal when needed, when finishing using, passage initiatively disconnects connection, the release channel resource by front end processor.
5. a kind of method of gathering transformer station's electric energy information according to claim 1, it is characterized in that: described acquisition module comprises timing acquiring module and real-time acquisition module, the time acquisition module mainly be responsible for the backstage and dispatch various acquisition and task acquisition controlling flow process, and according to terminal called protocol analysis electric energy data; In real time acquisition module mainly is responsible for providing the acquisition interface with user interactions, and the mode of calling survey by the user at random by hand together realizes; Timing acquiring and the collection of gathering the electric flux terminal in real time all need the exclusive access resource, and it is mutual to adopt the UDP passage to carry out the transmission of data between acquisition module and the front end processor.
6. a kind of method of gathering transformer station's electric energy information according to claim 5 is characterized in that: adopt asynchronous NIO technology to realize the management of UDP passage, adopt the RCP technology to realize the mutual of user interface.
7. a kind of method of gathering transformer station's electric energy information according to claim 1 is characterized in that: the collection communications protocol of electric flux terminal is " Guangxi 102 agreements ".
8. a kind of method of gathering transformer station's electric energy information according to claim 7, it is characterized in that: the collection of any data of described " Guangxi 102 agreements " regulation all must could successfully be gathered data or carry out an order through repeatedly confirming alternately; And main website be with between the terminal being the mode of question-response alternately, must be that main website is station initiatively, and the electric flux terminal is a slave station.
9. a kind of method of gathering transformer station's electric energy information according to claim 1, it is characterized in that: among the described step S4, the data of acquisition module collection comprise electric quantity data, instantaneous flow data, requirement data, terminal clock, each Terminal Type/ammeter incident.
10. a kind of method of gathering transformer station's electric energy information according to claim 1, it is characterized in that: the mode by passage lock realizes each acquisition module monopolizing the terminal passageway resource, also be that each acquisition module wants same terminal interaction, at first must obtain the exclusive lock of this terminal passageway to the front end processor application, can carry out the collection of data if obtain the exclusive lock success then mean, otherwise can only wait for that the terminal passageway lock is released and attempts to obtain again.
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