CN107516409A - Power information acquisition system electric energy meter cognitive method based on narrow-band power line carrier - Google Patents
Power information acquisition system electric energy meter cognitive method based on narrow-band power line carrier Download PDFInfo
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- CN107516409A CN107516409A CN201710548879.7A CN201710548879A CN107516409A CN 107516409 A CN107516409 A CN 107516409A CN 201710548879 A CN201710548879 A CN 201710548879A CN 107516409 A CN107516409 A CN 107516409A
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
Abstract
Power information acquisition system electric energy meter cognitive method based on narrow-band power line carrier, is related to a kind of acquisition method.Occur the increase or replacing of electric energy meter during application, the change of electric energy meter archive information just can not timely be reported to acquisition system main website.The present invention comprises the following steps：11）Collector abbreviated addressing searches table automatically, and forms electric energy meter archives；12）Modification information is actively reported concentrator by collector once finding there is the change of electric energy meter archive information by arrowband power carrier channel；13）Concentrator real-time report archive information is to acquisition system main website.The technical program uses the automatic sensing of carrier wave, finds the event for having table to access or remove in time, without considering other events, processing in real time, just can report within several seconds after table or collector install, realize active reporting, effectively improve information and substitute efficiency.
Description
Technical field
The present invention relates to a kind of acquisition method, more particularly to the power information acquisition system electricity based on narrow-band power line carrier
Can table cognitive method.
Background technology
In the power information acquisition system based on narrow-band power line carrier of Utilities Electric Co., whole system has four communications
Node, is acquisition system main website, concentrator, collector, electric energy meter successively from top to bottom, and concentrator uses narrow-band power line carrier
Communicated with collector, collector passes through《DL/T 645》Consensus standard communicates with electric energy meter.In actual field application, collection system
System main website need efficiently to manage it is all under connect the archive information of electric energy meter；At present, either narrow-band power line carrier communication party
Formula, still《DL/T 645》RS-485 buses in standard agreement, be all semiduplex mode, thus concentrator and collector it
Between, the active inquiry mode of master slave mode can be all used between collector and electric energy meter, this mode is when first installation
It is that can accomplish efficient, but if occurs the increase or replacing of electric energy meter, electric energy meter archives during application
The change of information just can not timely be reported to acquisition system main website, and reason has at 2 points：First,《DL/T 645》Standard agreement
Abbreviated addressing can all inquire about all electric energy meters one time, lack of targeted, and efficiency comparison is low；Second, if increase concentrator
It the frequency of active inquiry collector, can undoubtedly increase the pressure of narrowband carrier passage, shadow is brought to normal business data transmission
Ring.
The content of the invention
The technical problem to be solved in the present invention and the technical assignment proposed are prior art to be improved with being improved,
The power information acquisition system electric energy meter cognitive method based on narrow-band power line carrier is provided, to put forward efficient purpose.Therefore,
The present invention takes following technical scheme.
Power information acquisition system electric energy meter cognitive method based on narrow-band power line carrier, power information acquisition system bag
Main website, concentrator, collector and electric energy meter are included, described concentrator is communicated using narrow-band power line carrier with collector, collection
Device passes through《DL/T 645》Consensus standard communicates with electric energy meter, it is characterised in that：Electric energy meter cognitive method comprises the following steps：
11）Collector abbreviated addressing searches table automatically, and forms electric energy meter archives；
12）Collector actively believes change by arrowband power carrier channel once finding there is the change of electric energy meter archive information
Breath reports concentrator；
13）Concentrator real-time report archive information is to acquisition system main website.
After collector has altered information reporting to concentrator, the archive information after the change of concentrator real-time report, collection
Situations such as archive information of system main website storage obtains timely updates, avoids loss of data occurs.
The technical program uses the automatic sensing of carrier wave, the event for having table to access or remove is found in time, without considering
Other events, processing in real time, it just can report within several seconds after table or collector install, realize active reporting, effectively improve
Information substitutes efficiency.
Because carrier channel capability machine is limited, principle upper channel is controlled by concentrator, and collector is to be unable to active reporting
's.But due to changing table, dress table is the less incident of probability, and influence of the active reporting once to passage is limited once in a while, collection
Device actively can report modification information by arrowband power carrier channel once finding there is the change of electric energy meter archive information
Concentrator, the regular traffic of carrier channel will not be communicated to form pressure.
As further improving and supplementing to above-mentioned technical proposal, present invention additionally comprises following additional technical feature.
After electric energy meter receives the abbreviated addressing message of collector, judge whether electric energy meter received collection in setting time
Any message for its address that device is sent, if being then not responding to the abbreviated addressing message, otherwise electric energy meter responds collector
Abbreviated addressing message, send its address information.Electric energy meter is within a certain period of time（Time value can be set according to actual conditions
Put）If receiving any message for its address of collector transmission, address field is not responding to as any of abbreviated addressing
Message, it can so greatly improve and search table efficiency in the case of increment electric energy meter.
Further, when electric energy meter did not received any message for its address of collector transmission in setting time
When, acknowledgement frame, the address field restoring electrical energy table address of acknowledgement frame are sent after electric energy meter random delay.
Further, when system is in the application stage, and electric energy meter needs to increase or changed, RS- is accessed in electric energy meter
After 485, electric energy meter actively sends its address information to collector.
Further, in step 11）In, collector judges whether super in reception according to the electric energy meter address history of preservation
When the time in do not receive the information that all electric energy meters are replied, if not receiving all electric energy receiving collector in time-out time
The information that table is replied, then abbreviated addressing message is sent again.
Further, if after collector repeatedly sends abbreviated addressing message, do not receive what all electric energy meters were replied still
Information, then roll-call copy reading is carried out to not successful electric energy meter.
Further, after the most three times transmissions abbreviated addressing messages of collector, returned if can not still receive all electric energy meters
Multiple information, then roll-call copy reading is carried out to not successful electric energy meter.
Further, the frame format of acknowledgement frame includes start-of-frame, address field, start-of-frame, control code, data field length
Degree, data field, check code and end mark.
Further, collector is in abbreviated addressing, and from low level, the remaining high-order AAH that mends carries out meter reading as asterisk wildcard
Operation, the address field of electric energy meter acknowledgement frame return to actual mailing address.The number of transmission abbreviated addressing order to collector
Limited, after the address information of most of electric energy meter is obtained, the electric energy meter of fraction is polled, effectively improves effect
Rate, while communication pressure is also reduced, reduce influences on other business data transmissions.
Further, broadcasting running status word command includes start-of-frame, address field, start-of-frame, function code, data field
Length, data field, check code and end mark.
Further, collector is in abbreviated addressing, and from low level, the remaining high-order AAH that mends carries out meter reading as asterisk wildcard
Operation, the address field of electric energy meter acknowledgement frame return to actual mailing address.
Further, electric energy meter cognitive method, which is divided into, just fills the first dress method in stage for system and uses rank for system
The maintaining method of section；Step 11）、12）、13）For maintaining method the step of；
Described first dress method comprises the following steps：
21）Collector abbreviated addressing searches table automatically, and electric energy meter responds the abbreviated addressing message of collector, and its ground is sent to collector
Location information, collector form electric energy meter archives；
22）Concentrator timing inquiry obtains the archives in collector；
23）Concentrator real-time report archive information is to acquisition system main website.
Beneficial effect：
1st, the automatic sensing of carrier wave, the event for having table to access or remove, without considering other events, real-time place are found in time
Reason, it just can report within several seconds after table or collector install, realize active reporting, effectively improve information and substitute efficiency；And
Increase the limited pressure of narrowband carrier passage, influence will not be brought to normal business data transmission.
2nd, electric energy meter does not ring then within a certain period of time if receiving any message for its address of collector transmission
Any message for answering address field to be abbreviated addressing, it can so greatly improve and search table efficiency in the case of increment electric energy meter.
3rd, it is the less incident of probability to change table and the new table of installation, so collector once finds there is electric energy meter archives letter
The change of breath, modification information actively can be reported by arrowband power carrier channel by concentrator, will not be to carrier channel
Regular traffic communicates to form pressure.
4th, after for abbreviated addressing is employed many times, roll-call copy reading still is carried out without successful electric energy meter, is carried efficient
Meanwhile ensure the acquisition of the address information of electric energy meter.
5th, information is sent after each electric energy meter random delay, avoids congestion, improve the reliability of work.
6th, the number of the abbreviated addressing of collector is limited, after the address of most of electric energy meter is obtained, to small portion
The electric energy meter divided is polled, and effectively improves efficiency, while also reduces communication pressure, is reduced to other business data transmission shadows
Ring.
7th, avoid electric energy meter from uploading the address information repeated to collector, reduce communication pressure, reduce to other business numbers
Influenceed according to transmission.
Brief description of the drawings
Fig. 1 is the power information acquisition system structured flowchart of the present invention.
Fig. 2 is the electric energy meter archive information synchronization flow chart of the present invention.
Fig. 3 is the electric energy meter process chart of the present invention.
Fig. 4 is that the electric energy meter of the present invention receives the handling process after the abbreviated addressing message of collector.
Embodiment
Technical scheme is described in further detail below in conjunction with Figure of description.
Embodiment one：As shown in figure 1, the power information acquisition system based on narrow-band power line carrier includes main website, concentrated
Device, collector and electric energy meter, described concentrator are communicated using narrow-band power line carrier with collector, and collector passes through《DL/T
645》Consensus standard communicates with electric energy meter.
As shown in Fig. 2 electric energy meter cognitive method comprises the following steps：
11）Collector abbreviated addressing searches table automatically, and forms electric energy meter archives；
12）Collector actively believes change by arrowband power carrier channel once finding there is the change of electric energy meter archive information
Breath reports concentrator；
13）Concentrator real-time report archive information is to acquisition system main website.
The technical program uses the automatic sensing of carrier wave, the event for having table to access or remove is found in time, without considering
Other events, processing in real time, it just can report within several seconds after table or collector install, realize active reporting, effectively improve
Information substitutes efficiency.After collector has altered information reporting to concentrator, the archive information after the change of concentrator real-time report,
Situations such as archive information of acquisition system main website storage obtains timely updates, avoids loss of data occurs.
Because carrier channel capability machine is limited, principle upper channel is controlled by concentrator, and collector is to be unable to active reporting
's.But due to changing table, dress table is the less incident of probability, and influence of the active reporting once to passage is limited once in a while, collection
Device actively can report modification information by arrowband power carrier channel once finding there is the change of electric energy meter archive information
Concentrator, the regular traffic of carrier channel will not be communicated to form pressure.
Embodiment two：
As shown in figure 3, electric energy meter cognitive method comprises the following steps：
S1：Collector abbreviated addressing searches table automatically, and collector forms electric energy meter archives；
Handling process after the abbreviated addressing message of electric energy meter reception collector is as shown in Figure 4:
S11:Judge whether electric energy meter received any message for its address of collector transmission in setting time, if
The abbreviated addressing message is then not responding to, otherwise, into step S12；
S12：Electric energy meter responds the abbreviated addressing message of collector, sends its address information；
S2:Concentrator timing inquiry obtains the archives in collector；Collector once finds the change for having electric energy meter archive information,
Modification information is actively reported by arrowband power carrier channel by concentrator,
S3:Concentrator real-time report archive information is to acquisition system main website.
Electric energy meter is within a certain period of time（Time value can be set according to actual conditions）If received collector transmission
Any message for its address, then be not responding to address field be abbreviated addressing any message, can so greatly improve increasing
Table efficiency is searched in the case of amount electric energy meter.
In order to avoid congestion, the reliability of work is improved.Sent when electric energy meter did not received collector in setting time
Any message for its address when, send acknowledgement frame, the address field restoring electrical energy table of acknowledgement frame after electric energy meter random delay
Address.
Wherein, the frame format of acknowledgement frame includes start-of-frame, address field, start-of-frame, control code, data field length, number
According to domain, check code and end mark.Frame format is as shown in table 1：
Table 1
The abbreviated addressing of address field, from some low levels, the remaining high-order AAH that mends carries out meter reading operation, electric energy meter as asterisk wildcard
The address field of acknowledgement frame returns to actual mailing address.
To improve renewal speed, when system is in the application stage, and electric energy meter needs to increase or changed, connect in electric energy meter
After entering RS-485, electric energy meter actively sends its address information to collector.
While to effectively improve efficiency, communication pressure is also reduced, in step sl, collector is according to the electric energy meter of preservation
Address history, judge whether not receiving the information that all electric energy meters are replied in reception time-out time, if when receiving overtime
Interior collector does not receive the information that all electric energy meters are replied, then sends abbreviated addressing message again.Transmission to collector
The number of broadcast running status word command is limited, after the running status word of most of electric energy meter is obtained, to fraction
Electric energy meter is polled, and effectively improves efficiency, while also reduces communication pressure, and reduce influences on other business data transmissions.
Further, electric energy meter cognitive method, which is divided into, just fills the first dress method in stage for system and uses rank for system
The maintaining method of section；The step of S11, S12, S13 are maintaining method；
Described first dress method comprises the following steps：
S21:Collector abbreviated addressing searches table automatically, and electric energy meter responds the abbreviated addressing message of collector, it is sent to collector
Address information, collector form electric energy meter archives；
S22:Concentrator timing inquiry obtains the archives in collector；
S23:Concentrator real-time report archive information is to acquisition system main website.
The power information acquisition system electric energy meter cognitive method based on narrow-band power line carrier shown in figure 1 above -4 is this
The specific embodiment of invention, substantive distinguishing features of the present invention and progress are embodied, can be according to the use needs of reality, in this hair
Under bright enlightenment, carry out the equivalent modifications of shape, structure etc. to it, this programme protection domain row.
Claims (10)
1. the power information acquisition system electric energy meter cognitive method based on narrow-band power line carrier, power information acquisition system include
Main website, concentrator, collector and electric energy meter, described concentrator are communicated using narrow-band power line carrier with collector, collector
Pass through《DL/T 645》Consensus standard communicates with electric energy meter, it is characterised in that：Electric energy meter cognitive method comprises the following steps：
11）Collector abbreviated addressing searches table automatically, and forms electric energy meter archives；
12）Collector actively believes change by arrowband power carrier channel once finding there is the change of electric energy meter archive information
Breath reports concentrator；
13）Concentrator real-time report archive information is to acquisition system main website.
2. the power information acquisition system electric energy meter cognitive method according to claim 1 based on narrow-band power line carrier,
It is characterized in that：After electric energy meter receives the abbreviated addressing message of collector, judge whether electric energy meter received in setting time
Any message for its address that collector is sent, if being then not responding to the abbreviated addressing message, otherwise electric energy meter is responded and adopted
The abbreviated addressing message of storage, sends its address information.
3. the power information acquisition system electric energy meter cognitive method according to claim 2 based on narrow-band power line carrier,
It is characterized in that：When electric energy meter do not received in setting time collector transmission it is any be directed to its address message when, it is electric
Acknowledgement frame, the address field restoring electrical energy table address of acknowledgement frame can be sent after table random delay.
4. the power information acquisition system electric energy meter cognitive method according to claim 1 based on narrow-band power line carrier,
It is characterized in that：When system is in the application stage, and electric energy meter needs to increase or changed, after electric energy meter accesses RS-485,
Electric energy meter actively sends its address information to collector.
5. the power information acquisition system electric energy meter cognitive method according to claim 1 based on narrow-band power line carrier,
It is characterized in that：In step 11）In, collector judges whether receiving time-out time according to the electric energy meter address history of preservation
The information that all electric energy meters are replied is not received inside, if not receiving all electric energy meters replies receiving collector in time-out time
Information, then again send abbreviated addressing message.
6. the power information acquisition system electric energy meter cognitive method according to claim 5 based on narrow-band power line carrier,
It is characterized in that：After if collector repeatedly sends abbreviated addressing message, the information that all electric energy meters are replied is not received still, then
Roll-call copy reading is carried out to not successful electric energy meter.
7. the power information acquisition system electric energy meter cognitive method according to claim 6 based on narrow-band power line carrier,
It is characterized in that：After the most three times transmissions abbreviated addressing messages of collector, if can not still receive the letter that all electric energy meters are replied
Breath, then carry out roll-call copy reading to not successful electric energy meter.
8. the power information acquisition system electric energy meter cognitive method according to claim 1 based on narrow-band power line carrier,
It is characterized in that：The frame format of acknowledgement frame includes start-of-frame, address field, start-of-frame, function code, data field length, data
Domain, check code and end mark.
9. the power information acquisition system electric energy meter cognitive method according to claim 1 based on narrow-band power line carrier,
It is characterized in that：Collector is in abbreviated addressing, and from low level, the remaining high-order AAH that mends carries out meter reading operation, electricity as asterisk wildcard
The address field of energy table acknowledgement frame returns to actual mailing address.
10. according to the power information acquisition system based on narrow-band power line carrier described in claim 1-9 any claims
Electric energy meter cognitive method, it is characterised in that：Electric energy meter cognitive method, which is divided into, just to be filled the first dress method in stage for system and is used for
The maintaining method of system operational phase；Step 11）、12）、13）For maintaining method the step of；
Described first dress method comprises the following steps：
21）Collector abbreviated addressing searches table automatically, and electric energy meter responds the abbreviated addressing message of collector, and its ground is sent to collector
Location information, collector form electric energy meter archives；
22）Concentrator timing inquiry obtains the archives in collector；
23）Concentrator real-time report archive information is to acquisition system main website.
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| CN107480201A (en) * | 2017-07-17 | 2017-12-15 | 广州供电局有限公司 | Electricity consumption data analysis method and system based on broadband power line communication |
| CN109492134A (en) * | 2018-09-29 | 2019-03-19 | 中国电力科学研究院有限公司 | A kind of method and system that concentrator side handles the assets information of communication unit |
| CN110994787A (en) * | 2019-11-14 | 2020-04-10 | 广东电网有限责任公司 | Low-voltage distribution network automation equipment and system |
| CN113162239A (en) * | 2021-05-11 | 2021-07-23 | 南方电网电力科技股份有限公司 | Low-voltage distribution network platform area topological structure and deployment method |
| CN114095895A (en) * | 2021-11-23 | 2022-02-25 | 云南电网有限责任公司电力科学研究院 | Intelligent sensing terminal communication self-adaptive data acquisition method and device |
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