CN102044912B - Method for concurrently surveying terminal time in batch - Google Patents
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Abstract
The invention discloses a method for concurrently surveying terminal time in batch, comprising the following steps: (1) querying a front-end processor for the on-line state of terminals to be surveyed in batch, wherein off-line terminals are not surveyed; (2) applying for obtaining the transmission lock of the on-line terminals, wherein the terminals failing in applying for the lock are not surveyed; (3) circularly organizing time request commands of the surveyed terminals by a send-thread, and transmitting the time request commands to a corresponding terminal by the front-end processor; (4) acquiring the current time of the system by each terminal, and organizing response data to be forwarded to a master station query module by the front-end processor; (5) receiving the response data of each terminal by a receive-thread, and notifying an analysis response thread; (6) analyzing the received response data by the analysis response thread, and extracting terminal time; and (7) releasing the transmission lock of the terminal finishing analysis. The method can find the problem of system time errors of an accessed terminal in an electric energy acquisition system in time.
Description
Technical field
The invention belongs to electric power and communication technical field, relate in particular to a kind of batch and patrol the method for surveying terminal time.
Background technology
Transformation along with electric power system, the collection of electric power data adopts remote terminal to control meter reading method the manual metering pattern of abandoning tradition gradually, and meter reading data is sent to main station system by modes such as GPRS/CDMA, Ethernet, telephone line, serial ports passage, 230M carries out analysis and application.In order to carry out data analysis application and Real-Time Monitoring electricity consumption situation in main website side, just must guarantee correctness and the integrality of main website side electric power data, Electric Energy Acquisition System produces just under this background, but the markers of traditional Electric Energy Acquisition System institute image data depends critically upon terminal, if once data markers is made mistakes, these data just become without any practical value so, but also how therefore serious misleading analysis decision personnel likely find that the mistake of terminal system time is very crucial in time.
Concurrent patrolling based on GPRS in the present invention surveyed the method for designing of terminal time in batches; can be used for electric energy information acquisition system; because electric energy information acquisition system often there will be the situations such as markers dislocation of the unsuccessful or image data of data acquisition in actual moving process, patrolling brake and can find timely that the time of which terminal system occurs deviation and revises in time to guarantee the normal operation of Electric Energy Acquisition System by batch terminal time.
In the prior art of latest development, utilize GPRS to combine the data transmit-receive function of net or WCDMA net, in corresponding user locations, acquisition terminal is installed, and combine net or WCDMA net by GPRS, gathered data are sent to corresponding power private network, by Electric Energy Acquisition System, these data are resolved again, and give application server and analyze accordingly and process.
Summary of the invention
The object of the present invention is to provide a kind of concurrent patrolling to survey the method for terminal time in batches, be intended to find in time the problem of the system time mistake that accesses terminal in Electric Energy Acquisition System.
For achieving the above object, a kind of concurrent patrolling surveyed the method for terminal time in batches, it is characterized in that, said method comprising the steps of:
(1) to front end processor batch query, wait to patrol the presence of surveying terminal, not online terminal does not participate in patrolling survey;
(2) the transmission lock of online terminal is obtained in application, and application sends the failed terminal of lock and do not participate in patrolling survey;
(3) send-thread loop organization participates in patrolling and surveys the time request command of terminal and send to counterpart terminal by front end processor;
(4) each terminal is obtained its current time in system and tissue response data are transmitted to main website enquiry module by front end processor;
(5) receiving thread receives the response data of each terminal and notifies resolution response thread;
(6) resolution response thread is resolved the response data receiving, and extracts terminal time;
(7) discharge the transmission lock that is parsed terminal.
As specializing, in above-mentioned steps (1), the request command form of batch query terminal presence is with reference to main website communications protocol tissue, the frame format of communications protocol is as follows: bebinning character (E8H) the 1bytes address 1byte of ,Yuan main website, the address 1bytes of target main website, bebinning character (E8H) 1bytes, control domain (C) 1bytes, length (L) 2bytes, frame sequence territory (FIR, FIN, Pseq) 1bytes, data field (DATA), termination character (16H) 1bytes; Wherein source main website address and target main website address number to replace with the ID of program module, and maximum can not surpass 127; Control domain presentation function code, different function corresponding to function code, the form in different function code corresponding data districts is also different.
As improvement, the inquiry of terminal presence is comprised to single terminal presence inquiry and the inquiry of a plurality of terminal presence; Wherein, the function code of single terminal presence inquiry is defined as 0X05/0X15, and the data field of single terminal presence inquiry is content-defined is: terminal protocol type-terminal address-terminal presence; The function code of multiple terminals presence inquiry is defined as 0X06/0X16, and the data field of multiple terminals presence inquiry is content-defined is: terminal number n1-terminal address 1-terminal 1 state of terminal protocol Class1-protocol type 1 ... terminal number n2-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 ....
As specializing, in above-mentioned steps (2), the prerequisite of requesting terminal time is that terminal has been logined front end processor; And distributed an independently terminal transmission lock for each terminal, before terminal is operated, must first obtain the transmission lock of this terminal at every turn, otherwise will not be allowed to carry out terminal operation.
As improvement, in following three kinds of situations, can successfully apply for that terminal sends lock:
A, each terminal are obtained for the first time and are sent lock;
After B, transmission lock are discharged normally;
C, transmission lock were held continuously over the fixed time;
Wherein two kinds of situations of A and B all belong to normally to obtain and send lock, and C belongs to overtime pressure and obtains and send lock.
As specializing, in above-mentioned steps (3), the function realizing in send-thread is externally to offer caller as user's calling interface, and send-thread is any thread that calls this user interface, and user's calling interface method is defined as
publicvoidexeTermiCommCmd(List<TermiCommObj>termicommobjs，CompleteListener<Ter?miCommObj>listener)，
Wherein, first parameter is pending terminal object list collection, second parameter for certain terminal object be finished after for notifying user's the event sniffer that completes.
As improvement, user's calling interface realization flow is as follows:
The terminal list that a, traversal participate in patrolling survey, obtains each terminal;
B, according to < < power load management system transfer of data stipulations > >, organize the claim frame of each terminal time;
C, claim frame terminal time of tissue is transmitted to terminal by front end processor, if sent unsuccessfully, this terminal is deleted from participating in patrolling surveying terminal list;
D, continuation execution step a, until the request of all terminals is all sent;
If the above-mentioned terminal list of e is not empty, travel through terminal list, obtain each terminal, whether the transmission lock that checks its terminal in can application status, if in can application status, show that this terminal is finished, by event notification mechanism, inform user immediately, and from terminal list, delete this terminal, continue the next terminal of traversal, if in can not application status, directly travel through next terminal; If this step has traveled through after one time, all terminals send lock all in obtaining state, call Thread.sleep (1000) method and carry out the dormancy in 1 second;
F, judge that whether terminal list is empty, if be empty, continue to perform step e, until terminal list is sky.
As improvement, the event interface relating in above-mentioned event notification mechanism is CompleteListener, this interface definition a method: public void operateCompleted (TerminalCommCmd trmcmd), user obtains the execution result of station command by heavily loaded the method.
As specializing, the concrete steps of above-mentioned steps (4) are: terminal is received after the order of its system time of inquiry, according to the data format 01 of < < power load management system transfer of data stipulations > > definition, be organized into length and be 6 byte arrays, and using it as data field, be organized into complete protocol frame, and the GPRS passage that these frame data are logined to front end processor by connection is uploaded to front end processor; Then front end processor is transmitted to main website enquiry module by Frame.
As specializing, in above-mentioned steps (7), all resolving is put into try piece to be carried out, the process that discharges terminal transmission lock is put into finally code block to be carried out, so just can guarantee no matter occur which kind of is abnormal in resolving, terminal sends lock and all can successfully discharge, and avoids the generation of Deadlock.。
The invention has the beneficial effects as follows: by the concurrent characteristic of network support, realized the concurrent processing of front end processor to terminal, adopt multithread scheduling strategy and JAVA NIO asynchronous paths treatment mechanism to realize and patrol in batches the function of surveying terminal, adopt event notification mechanism assurance user awareness terminal to patrol the real-time of surveying result.
Accompanying drawing explanation
Fig. 1 is the electric energy information acquisition system structural representation that the embodiment of the present invention provides;
Fig. 2 is that concurrent the patrolling that the embodiment of the present invention provides surveyed the realization flow schematic diagram of terminal time in batches;
Fig. 3 is the workflow schematic diagram that patrols survey termination function user interface that the embodiment of the present invention provides;
Fig. 4 is the main website inquiry system structural representation that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention is achieved in that as shown in Figures 2 and 3, and a kind of concurrent patrolling based on GPRS surveyed the method for designing of terminal time in batches, said method comprising the steps of:
(1) to front end processor batch query, wait to patrol the presence of surveying terminal, not online terminal does not participate in patrolling survey; The request command form of batch query terminal presence is with reference to main website communications protocol tissue, the frame format of batch query terminal presence is as follows: bebinning character (E8H) the 1bytes address 1byte of ,Yuan main website, the address 1bytes of target main website, bebinning character (E8H) 1bytes, control domain (C) 1bytes, length (L) 2bytes, frame sequence territory (FIR, FIN, Pseq) 1bytes, data field (DATA), termination character (16H) 1bytes.Wherein source main website address and target main website address number to replace with the ID of program module, and maximum can not surpass 127.Control domain presentation function code, different function corresponding to function code, the form in different function code corresponding data districts is also different.The inquiry of terminal presence is comprised to single terminal presence inquiry and the inquiry of a plurality of terminal presence, wherein:
1), the function code of single terminal presence inquiry is defined as 0X05/0X15, the data field of single terminal presence inquiry is content-defined is: terminal protocol type-terminal address-terminal presence.
2), the function code of multiple terminals presence inquiry is defined as OX06/0X16, the data field of multiple terminals presence inquiry is content-defined is: terminal number n1-terminal address 1-terminal 1 state of terminal protocol Class1-protocol type 1 ... terminal number n2-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 ....
(2) the transmission lock of online terminal is obtained in application, and application sends the failed terminal of lock and do not participate in patrolling survey; The prerequisite of requesting terminal time is that terminal has been logined front end processor, online, and therefore not online terminal there is no need to participate in patrolling survey.The situation that often there will be user simultaneously to operate same terminal in actual applications; in order to guarantee the atomicity of each user's operation; spy is provided with terminal and sends lock; this transmission lock is for safeguard serial when same terminal is operated simultaneously; in the present invention for each terminal has been distributed an independently terminal transmission lock; each transmission lock that must first obtain this terminal before terminal is operated, otherwise will not be allowed to carry out terminal operation.In following three kinds of situations, can successfully apply for that terminal sends lock:
A, each terminal are obtained for the first time and are sent lock;
After B, transmission lock are discharged normally;
C, transmission lock were held continuously over the fixed time, as 1 minute.
Wherein two kinds of situations of A and B all belong to normally to obtain and send lock, and C belongs to overtime pressure and obtains and send lock.If it is occupied that certain terminal sends lock, and holding time is no more than the fixed time, application transmission lock will be failed, means that in this case the request command of main website requestor module has been issued to terminal and has waited for replying of this terminal, and now this terminal should not participate in patrolling survey.
(3) send-thread loop organization participates in patrolling and surveys the time request command of terminal and send to counterpart terminal by front end processor; The function realizing in send-thread externally offers caller as user's calling interface, and send-thread can be any thread that calls this user interface, and this interface method is defined as:
PublicvoidexeTermiCommCmd (List<TermiCommObj>termicommob js, CompleteListener<Ter miCommObj>listener), wherein, first parameter is pending terminal object list collection, second parameter for certain terminal object be finished after for notifying user's the event sniffer that completes, this Interface realization flow process is as follows:
The terminal list that a, traversal participate in patrolling survey, obtains each terminal;
B, according to < < power load management system transfer of data stipulations > >, organize the claim frame of each terminal time;
C, claim frame terminal time of tissue is transmitted to terminal by front end processor, if sent unsuccessfully, this terminal is deleted from participating in patrolling surveying terminal list;
D, continuation execution step a, until the request of all terminals is all sent;
If the above-mentioned terminal list of e is not empty, travel through terminal list, obtain each terminal, check that it sends lock whether in can application status, if in can application status,, transmission lock has normally been discharged or overtime pressure is obtained, show that this terminal is finished, by event notification mechanism, called event sniffer immediately and informed user, and from terminal list, delete this terminal, continue the next terminal of traversal, if in can not application status, send lock at the appointed time and be not also released, directly travel through next terminal; If this step has traveled through after one time, all terminals send lock all in obtaining state, call Thread.sleep (1000) method and carry out the dormancy in 1 second;
F, judge that whether terminal list is empty, if be empty, continue to perform step E, until terminal list is sky.
From above step a-f, can find out, whole user interface enters wait state after sending the terminal request that participates in patrolling survey, etc. thread to be resolved, resolve and discharge and send lock, wait spent time is the longest is to apply for that terminal sends the time-out time of lock permission, that is to say that the whole survey interface execution spent time of patrolling is no more than the time-out time that single terminal to apply sends lock setting.
The event interface relating in above-mentioned event notification mechanism is CompleteListener, completes event sniffer interface, and this interface has only defined a method:
Public void operateCompleted (TerminalCommCmd trmcmd), user obtains the execution result of station command by heavily loaded the method.
(4) each terminal is obtained its current time in system and tissue response data are transmitted to main website enquiry module by front end processor; Terminal is received after the order of its system time of inquiry, according to the data format 01 of < < power load management system transfer of data stipulations > > definition, be organized into length and be 6 byte arrays, and using it as data field, be organized into complete protocol frame, and the GPRS passage that these frame data are logined to front end processor by connection is uploaded to front end processor; Then front end processor is transmitted to main website enquiry module by Frame.
(5) receiving thread receives the response data of each terminal and notifies resolution response thread; The NIO technology that adopts receiving thread realizes the read-write of channel data frame, and the Frame reading is deposited as resolved the threads to be resolved such as thread buffer and resolved; Receiving thread and to resolve thread be that mode by shared buffer realizes data sharing, and realize oneself's notice by what resolve that thread monitors this buffering area automatically.
(6) resolution response thread is resolved the response data receiving, and extracts terminal time; Resolving thread monitors after having Frame in buffering area and obtains immediately Frame and resolve according to < < power load management system transfer of data stipulations > >, finally extract the legal terminal system time, and deposited in to the data storage area of counterpart terminal this time;
(7) discharge the transmission lock that is parsed terminal; Resolve the complete terminal response Frame of the every parsing of thread, just discharge immediately the transmission lock that this terminal takies, to this terminal is patrolled and surveyed or other operations next time; In actual data frame analyzing process, may variously extremely cause resolving thread dies, and then affect the normal operation of whole program, the present invention puts into try piece by all resolving and carries out for this reason, and being put into finally code block, the process that discharges terminal transmission lock carries out, so just can guarantee no matter occur which kind of is abnormal in resolving, terminal sends lock and all can successfully discharge, and avoids the generation of Deadlock.
In the present invention, described GPRS is the standard of relevant grouped data in european telecommunication association gsm system, it can provide the air interface transmission speed up to 115Kbps, allows some mobile subscribers can share a wireless channel simultaneously, and 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.Had GPRS, user's call set-up time shortens dramatically, and almost can accomplish " always online " (always online).Due to These characteristics, GPRS net can be Mobile data user package burst service is provided, can connect by Rapid Establishment, and without connecting 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 current optimal management of power use.
Described terminal is supported < < power load management system transfer of data stipulations > >, be applied to the data acquisition of electric power system, the control etc. of loading, its Various types of data of freezing all has markers, and adopts GPRS as its data feedback channel.
Fig. 1 is the electric energy information acquisition system structural representation that the embodiment of the present invention provides, and in system configuration, each module is briefly described below:
Collecting device comprises various acquisition terminals, concentrator, collector, net list, electric energy meter etc., and in electric energy information acquisition system, these equipment are referred to as acquisition target;
Communication channel comprises the radio channel that each Virtual network operator provides, and as GPRS/CDMA etc., also has light pricker private network, 230M wireless channel, telephone line channels, serial ports passage etc.;
Main website comprises front end processor, timing acquiring module, Real-time Collection module, middleware module, web application module etc., and wherein method for designing of the present invention is mainly used in the inquiry of main website to the terminal system time.
Fig. 4 is the main website inquiry system structural representation that the embodiment of the present invention provides, and the C/S structure client software module that method for designing of the present invention can be used in figure realizes the survey of patrolling of terminal time, and also can be used for realizing query function terminal time in the browser of B/S structure; As we can see from the figure, no matter be to adopt that mode, all must carry out alternately with front end processor service, front end processor mainly plays office terminal passage and forwarding data.
In sum, the present invention adopts that multithreading service and NIO technology realize terminal in batches concurrently patrols survey, adopt accurate algorithm and event-driven mode that the user interface of hommization is provided, the great terminal of acceptable number participates in patrolling survey simultaneously, guarantees within the short as far as possible time, to obtain patrolling survey result.Adopt the present invention, can reduce the situations such as markers dislocation of the unsuccessful or image data of data acquisition that electric energy information acquisition system occurs in actual moving process as far as possible.By patrolling of batch terminal, survey time function and can find in time that deviation appears in the time of which terminal system, and revise in time to guarantee the normal operation of Electric Energy Acquisition System, can significantly reduce the use cost of safeguarding of power consuming administrative system, and make system safer, reliable.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. concurrent patrolling surveyed the method for terminal time in batches, it is characterized in that, said method comprising the steps of:
(1) to front end processor batch query, wait to patrol the presence of surveying terminal, not online terminal does not participate in patrolling survey;
(2) the transmission lock of online terminal is obtained in application, and application sends the failed terminal of lock and do not participate in patrolling survey;
(3) send-thread loop organization participates in patrolling and surveys the time request command of terminal and send to counterpart terminal by front end processor;
(4) each terminal is obtained its current time in system and tissue response data are transmitted to main website enquiry module by front end processor;
(5) receiving thread receives the response data of each terminal and notifies resolution response thread;
(6) resolution response thread is resolved the response data receiving, and extracts terminal time;
(7) discharge the transmission lock that is parsed terminal.
2. a kind of concurrent method of terminal time in batches of surveying of patrolling according to claim 1, it is characterized in that: in above-mentioned steps (1), the request command form of batch query terminal presence is with reference to main website communications protocol tissue, the frame format of communications protocol is as follows: bebinning character (E8H) the 1bytes address 1byte of ,Yuan main website, the address 1bytes of target main website, bebinning character (E8H) 1bytes, control domain (C) 1bytes, length (L) 2bytes, frame sequence territory (FIR, FIN, Pseq) 1bytes, data field (DATA), termination character (16H) 1bytes; Wherein source main website address and target main website address number to replace with the ID of program module, and maximum can not surpass 127; Control domain presentation function code, different function corresponding to function code, the form in different function code corresponding data districts is also different.
3. a kind of concurrent patrolling according to claim 2 surveyed the method for terminal time in batches, it is characterized in that: the inquiry of terminal presence is comprised to single terminal presence inquiry and the inquiry of a plurality of terminal presence; Wherein, the function code of single terminal presence inquiry is defined as 0X05/0X15, and the data field of single terminal presence inquiry is content-defined is: terminal protocol type-terminal address-terminal presence; The function code of multiple terminals presence inquiry is defined as 0X06/0X16, and the data field of multiple terminals presence inquiry is content-defined is: terminal number n1-terminal address 1-terminal 1 state of terminal protocol Class1-protocol type 1 ... terminal number n2-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 ....
4. a kind of concurrent patrolling according to claim 1 surveyed the method for terminal time in batches, it is characterized in that: in above-mentioned steps (2), the prerequisite of requesting terminal time is that terminal has been logined front end processor; And distributed an independently terminal transmission lock for each terminal, before terminal is operated, must first obtain the transmission lock of this terminal at every turn, otherwise will not be allowed to carry out terminal operation.
5. a kind of concurrent patrolling according to claim 4 surveyed the method for terminal time in batches, it is characterized in that: in following three kinds of situations, can successfully apply for that terminal sends lock:
A, each terminal are obtained for the first time and are sent lock;
After B, transmission lock are discharged normally;
C, transmission lock were held continuously over the fixed time;
Wherein two kinds of situations of A and B all belong to normally to obtain and send lock, and C belongs to overtime pressure and obtains and send lock.
6. a kind of concurrent method of terminal time in batches of surveying of patrolling according to claim 1, it is characterized in that: in above-mentioned steps (3), the function realizing in send-thread is externally to offer caller as user's calling interface, send-thread is any thread that calls this user interface, and user's calling interface method is defined as
publicvoidexeTermiCommCmd(List<TermiCommObj>termicommobjs，CompleteListener<Termi?CommObj>listener)，
Wherein, first parameter is pending terminal object list collection, second parameter for certain terminal object be finished after for notifying user's the event sniffer that completes.
7. a kind of concurrent method of terminal time in batches of surveying of patrolling according to claim 1, it is characterized in that: in above-mentioned steps (7), all resolving is put into try piece to be carried out, the process that discharges terminal transmission lock is put into finally code block to be carried out, so just can guarantee no matter occur which kind of is abnormal in resolving, terminal sends lock and all can successfully discharge, and avoids the generation of Deadlock.
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| CN1719914A (en) * | 2005-07-15 | 2006-01-11 | 胡波 | Method and system for receiving, transmitting and processing electronic message in mobile network |
| CN101452069A (en) * | 2007-12-06 | 2009-06-10 | 深圳市科陆电子科技股份有限公司 | Electric energy meter calibrating system and timing method thereof |
| CN201583648U (en) * | 2009-12-10 | 2010-09-15 | 河南省电力公司郑州供电公司 | Clock remote timing device of electric energy meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1719914A (en) * | 2005-07-15 | 2006-01-11 | 胡波 | Method and system for receiving, transmitting and processing electronic message in mobile network |
| CN101452069A (en) * | 2007-12-06 | 2009-06-10 | 深圳市科陆电子科技股份有限公司 | Electric energy meter calibrating system and timing method thereof |
| CN201583648U (en) * | 2009-12-10 | 2010-09-15 | 河南省电力公司郑州供电公司 | Clock remote timing device of electric energy meter |
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