CN206472130U - Power line carrier, PLC kilowatt meter reading-out system - Google Patents
Power line carrier, PLC kilowatt meter reading-out system Download PDFInfo
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- CN206472130U CN206472130U CN201720180471.4U CN201720180471U CN206472130U CN 206472130 U CN206472130 U CN 206472130U CN 201720180471 U CN201720180471 U CN 201720180471U CN 206472130 U CN206472130 U CN 206472130U
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Abstract
The utility model is related to a kind of power line carrier, PLC kilowatt meter reading-out system, including concentrator and at least one layer of carrier electric energy meter；Concentrator includes micro-control unit, first carrier data collector and GPRS communication modules；Carrier electric energy meter includes the second carrier data transceiver；Micro-control unit connects power line by first carrier data collector, and main website is connected by GPRS communication modules；Carrier electric energy meter connects power line by the second carrier data transceiver.The utility model can be by the change real-time data sharing of carrier electric energy meter to main website, while so that all carrier electric energy meters can be communicated with concentrator；It ensure that the carrier electric energy meter information list in live carrier electric energy meter information, concentrator, the carrier electric energy meter information in main website are consistent, can greatly improve the collection success rate of centralized meter-reading system.
Description
Technical field
The utility model is related to power line carrier, PLC data acquisition technology field, more particularly to a kind of power line carrier, PLC
Kilowatt meter reading-out system.
Background technology
Realized with the fast development and the residential electricity consumption transformation that Every household has an ammeter of Chinese society economy, China's power consumer number
Amount is more and more, to the reliability requirement of meter reading also more and more higher.The popularization of remote auto meter reading system (abbreviation centralized meter-reading system)
It instead of traditional manual metering, it is ensured that the real-time of meter reading data, improve the degree of accuracy and the efficiency of meter reading, reduce flower
Take the human and material resources in meter reading, meet the regulatory requirement of electric power enterprise.But, because centralized meter-reading system is by many-sided condition
Restriction, actual motion process it is difficult to ensure that the success rate of data acquisition.
In implementation process, inventor has found that at least there are the following problems in conventional art：In traditional Remote kilowatt meter reading-out system
Main website the Real-Time Sharing of change carrier electric energy meter file data can not be carried out with marketing system, when there is individual carrier electric energy meter
When changing, remove, increasing newly, concentrator can not normally meter reading；Simultaneously because signal can be by during being transmitted on power line
Interference, the communication distance of carrier electric energy meter is shortened, cause some carrier electric energy meters can not with concentrator direct communication, therefore,
, there is the defect for being difficult to ensure that data acquisition success rate in traditional Remote kilowatt meter reading-out system poor reliability.
Utility model content
Based on this, it is necessary in view of the above-mentioned problems, providing a kind of power line carrier, PLC kilowatt meter reading-out system.
To achieve these goals, the utility model embodiment provides a kind of power line carrier, PLC kilowatt meter reading-out system, including
Concentrator and at least one layer of carrier electric energy meter；Concentrator includes micro-control unit, first carrier data collector and GPRS
Communication module；Carrier electric energy meter includes the second carrier data transceiver；
Micro-control unit connects power line by first carrier data collector, and main website is connected by GPRS communication modules；
Carrier electric energy meter connects power line by the second carrier data transceiver.
The utility model has the following advantages that and beneficial effect：
The utility model power line carrier, PLC kilowatt meter reading-out system, is exported micro-control unit by first carrier data collector
Data signal change into the analog signal that power line can be transmitted, analog signal filters out letter by first carrier data collector
The noise adulterated in number, and it is coupled to the second carrier data transceiver that each carrier electric energy meter is transferred on power line；Second carries
The analog signal can be transmitted to the other carrier electric energy meters of communication distance farther out by ripple data collector as relay point；Respectively
The feedback signal of carrier electric energy meter after separating and filtering, is received through first carrier data collector from power line by first carrier data
Feedback signal is changed into digital data transmission and gives micro-control unit processing by hair device, and micro-control unit passes through the result after processing
GPRS communication modules are transferred to main website.The utility model can be real by the change data such as the replacing of carrier electric energy meter, dismounting, newly-increased
When share to main website, while so that all carrier electric energy meters can be communicated with concentrator；It ensure that live carrier electric power
The carrier electric energy meter information in carrier electric energy meter information list, main website in table information, concentrator is consistent, can greatly improve
The collection success rate of centralized meter-reading system.
Brief description of the drawings
By being more particularly described for the preferred embodiment of the present utility model shown in accompanying drawing, it is of the present utility model on address
Other purposes, feature and advantage will become more fully apparent.Identical reference indicates identical part in whole accompanying drawings, and
Deliberately accompanying drawing is not drawn by actual size equal proportion scaling, it is preferred that emphasis is purport of the present utility model is shown.
Fig. 1 is the structural representation of centralized meter-reading system in the application scenarios of the utility model power line carrier, PLC kilowatt meter reading-out system one；
Fig. 2 is the structural representation of the utility model power line carrier, PLC kilowatt meter reading-out system embodiment 1；
Fig. 3 is the concrete structure schematic diagram of the utility model power line carrier, PLC kilowatt meter reading-out system embodiment 1；
Fig. 4 be the utility model power line carrier, PLC kilowatt meter reading-out system embodiment 1 in first carrier data collector it is specific
Structural representation；
Fig. 5 be the utility model power line carrier, PLC kilowatt meter reading-out system embodiment 1 in the second carrier data transceiver it is specific
Structural representation.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can come real in many different forms
It is existing, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is made to public affairs of the present utility model
Open content more thorough comprehensive.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element and it is in combination be integrated, or may be simultaneously present centering elements.Term as used herein " installation ", " one
End ", " other end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " include
The arbitrary and all combination of one or more related Listed Items.
The application scenarios explanation of the utility model power line carrier, PLC kilowatt meter reading-out system one：
Traditional centralized meter-reading system (remote auto meter reading system：Abbreviation centralized meter-reading system) be a kind of collection modern digital communication technology,
User power utilization information gathering and analysis process system that computer hardware technique, Electric Energy Metering Technology are integrated.Fig. 1 is this reality
With the structural representation of centralized meter-reading system in the application scenarios of novel electric power carrier communication kilowatt meter reading-out system one.
As shown in figure 1, the composition of traditional centralized meter-reading system is included in carrier electric energy meter, concentrator, main station system and connection
State the data transmission channel of equipment.Centralized meter-reading system mainly includes three-decker：First layer is main station system, including field application clothes
Business device, database server, are responsible for data storage and provide human-computer interaction interface；The second layer is concentrator, is responsible for main website
Order is parsed and then is handed down to carrier electric energy meter, collects the data that carrier electric energy meter is returned, and carry out storage wait main website
Call survey together；Third layer carrier electric energy meter, gathers electricity consumption data.
Main website in traditional Remote kilowatt meter reading-out system can not carry out the reality of change carrier electric energy meter file data with marketing system
When it is shared, when occur individual carrier electric energy meter change, remove, it is newly-increased when, concentrator can not normally meter reading；Because signal is in electric power
It can be interfered during being transmitted on line, the communication distance of carrier electric energy meter is shortened, cause some carrier electric energy meters can not
With concentrator direct communication；Therefore, traditional Remote kilowatt meter reading-out system poor reliability, exists and is difficult to ensure that lacking for data acquisition success rate
Fall into.
In one example, each embodiment of the utility model power line carrier, PLC kilowatt meter reading-out system can be applied in low-voltage remote
In the scene of centralized automatic meter-reading.
The utility model power line carrier, PLC kilowatt meter reading-out system embodiment 1：
In order to solve traditional Remote kilowatt meter reading-out system poor reliability, there is asking for the defect that is difficult to ensure that data acquisition success rate
Topic, the utility model provides a kind of power line carrier, PLC kilowatt meter reading-out system embodiment 1；Fig. 2 is logical for the utility model power carrier
Believe the structural representation of kilowatt meter reading-out system embodiment 1；As shown in Fig. 2 concentrator and at least one layer of carrier electric energy meter can be included；
Fig. 3 is the concrete structure schematic diagram of the utility model power line carrier, PLC kilowatt meter reading-out system embodiment 1, concentrator bag as shown in Figure 3
Include micro-control unit 310, first carrier data collector 320 and GPRS communication modules 330；Carrier electric energy meter includes second and carried
Ripple data collector 240；
Micro-control unit 310 connects power line by first carrier data collector 320, passes through GPRS communication modules 330
Connect main website；Carrier electric energy meter connects power line by the second carrier data transceiver 340.
Specifically, the utility model can be believed the numeral that micro-control unit is exported by first carrier data collector
The analog signal that power line can be transmitted number is changed into, analog signal is filtered out in signal by first carrier data collector and adulterated
Noise, and be coupled to the second carrier data transceiver that each carrier electric energy meter is transferred on power line；Second carrier data is received
The analog signal can be transmitted to the other carrier electric energy meters of communication distance farther out by hair device as relay point；Each carrier electric power
The feedback signal of table after separating and filtering, incites somebody to action anti-from power line through first carrier data collector by first carrier data collector
Feedback signal changes into digital data transmission and gives micro-control unit processing, and micro-control unit communicates the result after processing by GPRS
Module transfer is to main website.
In a specific embodiment, Fig. 4 is first in the utility model power line carrier, PLC kilowatt meter reading-out system embodiment 1
The concrete structure schematic diagram of carrier data transceiver；As shown in figure 4, first carrier data collector can include first carrier core
First peripheral circuit of piece and correlation；First peripheral circuit includes the first output narrow band filter, the first input narrow-band filtering
Device, the first signal amplification circuit, the first isolation coupling circuit, first voltage control circuit and the first current control circuit；
First carrier chip connects micro-control unit by communication interface, control interface respectively；
The signal input part connection first carrier chip of first output narrow band filter, signal output part passes through the first isolation
Termination power connects power line；First voltage control be electrically connected to first carrier chip and first output narrow band filter it
Between；
The signal input part of first input narrow band filter connects the first isolation coupling electricity by the first signal amplification circuit
Road, signal output part connection first carrier chip；First carrier chip is also connected with the first current control circuit.
Specifically, peripheral circuit can include output narrow band filter, input narrow band filter, input signal amplification electricity
Road, isolation coupling circuit, protection circuit and voltage, current control circuit etc..MCU is used as power line carrier, PLC kilowatt meter reading-out system
Control centre, carrier chip can be modulated demodulation to the signal of transmission.Due to the AC distribution that low-voltage network is 220V
Voltage, so needing the isolation circuit of strong and weak electricity；Signal of communication will be sent on power line or be separated from power line, it is necessary to coupling
Close circuit；
First carrier data collector sends the workflow of signal：MCU data signal is changed into electricity by carrier chip
The analog signal that the line of force can be transmitted, signal by output narrow band filter filter out the noise adulterated in signal, finally by every
The enterprising transmission of power line is coupled a signal to from termination power.
First carrier data collector receives the workflow of signal：Signal in power line after isolation coupling circuit from
Separated on power line, be communicated to input narrow-band filtering circuit, input narrow-band filtering circuit filters out the noise signal in power network, connect
Carrier chip and these analog signals are changed into data signal for MCU processing.
In a specific embodiment, first carrier chip is power carrier modem chip ST7538.
Specifically, in order to which anti-stop signal transmits the corresponding load of the disturbance-proof design by channel strong noise in power line
Ripple chip, to noise of decaying.Wherein the function of carrier chip can by power carrier modem chip ST7538 come
Realize.ST7538 chip internals are integrated with transmitting power amplifying circuit, therefore power amplification electricity need not be redesigned in periphery
Road.When sending signal, signal has enough power to be coupled on power line after exporting narrow band filter and filtering out noise, protects
The reliability of communication is demonstrate,proved, while reducing the power consumption of whole circuit.When receiving signal, signal passes through input narrow band filter,
Input narrow band filter filters out the noise signal in signal in addition to the frequency that communicates, and amplifies the signal on communication frequency, finally
Signal after amplification is sent in ST7538 and handled.
In a specific embodiment, micro-control unit is ATmega64 microprocessors.
Specifically, micro-control unit in each embodiment of the utility model can be realized using ATmega64 microprocessors
Function.ATmega64 microprocessors have enough Resources on Chip, are conducive to the realization of communication function and preferably meet interface
Extension demand, while the characteristics of there is high-new energy, low-power consumption, fast processing speed.Data throughput is high, so as to mitigation systems
Contradiction between power consumption and processing speed.
In a specific embodiment, concentrator can also include connection micro-control unit, micro-control unit is carried out
The power module 350 of power supply.
In a specific embodiment, concentrator can also include connection micro-control unit, preserve communication data and load
Ripple electric energy meter changes the storage device 360 of data.
Fig. 5 be the utility model power line carrier, PLC kilowatt meter reading-out system embodiment 1 in the second carrier data transceiver it is specific
Structural representation, as shown in figure 5, in a specific embodiment, the second carrier data transceiver can include the second carrier wave
Second peripheral circuit of chip and correlation；Second peripheral circuit includes the second output narrow band filter, the second input arrowband filter
Ripple device, secondary signal amplifying circuit, the second isolation coupling circuit, second voltage control circuit and the second current control circuit；
The signal input part of second output narrow band filter connects the second carrier chip, and signal output part passes through the second isolation
Termination power connects power line；Second voltage control be electrically connected to the second carrier chip and second output narrow band filter it
Between；
The signal input part of second input narrow band filter connects the second isolation coupling electricity by secondary signal amplifying circuit
Road, signal output part connects the second carrier chip；Second carrier chip is also connected with the second current control circuit.
In a specific embodiment, the second carrier chip is power carrier modem chip ST7538.
Each embodiment of the utility model can be by the change real-time data sharing such as the replacing of carrier electric energy meter, dismounting, newly-increased
To main website, while so that all carrier electric energy meters can be communicated with concentrator；Ensure that live carrier electric energy meter information,
The carrier electric energy meter information in carrier electric energy meter information list, main website in concentrator is consistent, can greatly improve collection and copy and is
The collection success rate of system.
In order to further illustrate the technical scheme of the utility model power line carrier, PLC kilowatt meter reading-out system, spy is existed with practical application
Exemplified by the utility model power line carrier, PLC kilowatt meter reading-out system in remote monitoring modules, illustrate workflow of the present utility model：
Element annexation structure based on the utility model power line carrier, PLC kilowatt meter reading-out system so that concentrator and carrier wave
Electric energy meter can run overlapping clustering algorithm and change by first carrier data collector, the second carrier data transceiver
Carrier electric energy meter method of discrimination (being that can be achieved by the burned corresponding algorithm of the hardware such as existing server or built-in chip).Collection
The data frame that middle device initiates to include networking commands to carrier electric energy meter, data frame is sent by first carrier data collector, is passed through
Cross power line transmission and reach carrier electric energy meter (i.e. carrier electric energy meter).Concentrator obtains the logic of whole network after the completion of networking
Topological structure is simultaneously numbered according to certain rules to each communication node, original network topology is defined as, while recording concentrator
To the communication path of all nodes.Then concentrator timing is read carrier electric energy meter to all carrier electric energy meters initiation under it and led to
Believe address broadcast instruction, the mailing address that carrier electric energy meter is returned is stored in newly-built one of concentrator according to the arrangement of certain order
In Zhang Liebiao, then the table is compared with primary carrier electric energy meter mailing address list, if finding, two lists are inconsistent,
Carrier electric energy meter change then occurs in network.Networking obtains new logical topology and records concentrator to all concentrator again
The communication path of node, then two communication path tables are contrasted, go out to change carrier electric power according to corresponding Rules Filtering
Table.
Specifically, the concrete operating principle of the utility model power line carrier, PLC kilowatt meter reading-out system is：
Concentrator can obtain the logical topological structure of whole network using non-overlapping clustering algorithm, and to each logical
Letter node is numbered according to certain rules, original network topology is defined as, while recording concentrator to the communication lines of all nodes
Footpath.
Micro-control unit initiates to search table address broadcasting command by first carrier data collector to carrier electric energy meter, can receive
To order carrier electric energy meter by the second carrier data transceiver reply self communication address response frame (referring in table 1 below
Frame format illustrates).Wherein it is possible to the data recovery of carrier electric energy meter is handled using the method for communication channel time-sharing multiplex, i.e., it is every
The individual carrier electric energy meter for receiving information makes corresponding delay according to itself unique mailing address, then returns and confirms to concentrator
Information.If basic timer is t milliseconds of Δ, it is assumed that local communication address is ai, then carrier electric energy meter delayed response time
For ti=Δ tai。
Concentrator sets the stand-by period by the summation of all carrier electric energy meter delayed response times, if carrier electric energy meter can be with
Concentrator direct communication then can return to acknowledgement frame to concentrator after concentrator initiates to search table order for the first time, it is assumed that a total of m
Block carrier electric energy meter then sets the stand-by period of concentrator to be：Can direct communication have a n block tables, due to signal
On power line transmit when can be interfered make the communication distance of carrier electric energy meter shorten cause can not with concentrator direct communication,
It so there remains m-n block tables and be unable to direct communication, then concentrator is needed using this n blocks table as relaying, and data frame is forwarded
To remaining m-n blocks table；
Then the carrier electric energy meter that these directly can communicate with concentrator is regard as the first of spanning tree when reaching the stand-by period
Layer, and be numbered according to the sequencing for returning to acknowledgement frame.
Table 1- frame format explanations
The specific frame formula for searching table address broadcasting command is as follows：
1) concentrator sends claim frame
A) address field：AA…AAH.
B) control code：C=13H.
C) data field length：L=00H.
D) frame format：
| 68H | AAH | … | AAH | 68H | 13H | 00H | CS | 16H |
2) (order or carrier electric energy meter damage that carrier electric energy meter can not receive concentrator will for carrier electric energy meter normal response frame
Do not do response)
A) control code：C=13H.
B) data field length：L=00H.
C) frame format：
| 68H | A0 | … | A5 | 68H | 93H | 06H | A0 | … | A5 | CS | 16H |
Wherein, A0, A1, A2, A3, A4, A5 are the mailing address that carrier electric energy meter is replied.
Arrived when the stand-by period that concentrator is replied all carrier electric energy meters of first layer, concentrator passes through the second carrier data
Transceiver will continue to initiate the second wheel to search table order using all carrier electric energy meter nodes of first layer as relaying, and search can be with the
The node of each node direct communication in one layer, can reply acknowledgement frame to concentrator, concentrator is these carrier waves if it can communicate
Electric energy meter is as the second layer of spanning tree, and the sequencing numbering replied by carrier electric energy meter, and concentrator is set in this wheel
Stand-by period to remove during the remaining carrier electric energy meter delayed response after all carrier electric energy meter responses of first layer delay summations
Between summation
Arrived when the wheel stand-by period of concentrator second, concentrator each node using in first layer, the second layer is used as relaying, search
Node that can be with the node direct communication in the second layer, and using these as spanning tree third layer.And returned by carrier electric energy meter
The multiple sequencing to concentrator is numbered.
Said process is repeated always until network tree structure reaches layer 7, then networking process is finished.Concentrator is recorded
A preceding communication network logical topological structure node number and corresponding carrier electric energy meter address information table it is as shown in table 2；
Table 2- node numbers and corresponding carrier electric energy meter address information table (preceding once)
| Node number | Mailing address |
| 1 | 000001 |
| 2 | 000002 |
| 3 | 000003 |
| 4 | 000004 |
| 5 | 000005 |
| 6 | 000006 |
| 7 | 000007 |
| 8 | 000008 |
| 9 | 000009 |
| 10 | 000010 |
The communication path of all nodes can be obtained according to communication network logical topology, these communication paths are after the completion of networking
Concentrator will be automatically saved in a routing table, and routing table is stored in the form of matrix, and two nodes of energy direct communication exist
Corresponding element is 1 in matrix, it is impossible to which direct communication is 0.Following decision rule can be directly such as following table for convenience of description
The form of table 3 shows communication path；
Table 3- obtains the communication path (preceding once) of node according to communication network logical topology
| 0-000001 |
| 0-000001-000005 |
| 0-000001-000006 |
| 0-000001-000006-000008 |
| 0-000001-000006-000009 |
| 0-000002 |
| 0-000003 |
| 0-000004 |
| 0-000004-000007 |
| 0-000004-000007-000010 |
In the case where not influenceing data acquisition, concentrator regularly initiates to initiate searching carrier electricity to carrier electric energy meter daily
Can table address broadcasting instructions.
The mailing address that concentrator returns to carrier electric energy meter is stored in concentration according to the sequencing for replying confirmation
In a newly-built list of device, then the table is compared with the carrier electric energy meter mailing address list after the completion of last time networking
Right, if finding, two lists are inconsistent, confirm that carrier electric energy meter change occurs in network.
When carrier electric energy meter change occurs in network, concentrator networking commands again are triggered at once.Work as carrier electric energy meter
Networking obtains new logical topological structure i.e. present communications network logical topological structure again after changing；Present communications network
The node number of logical topological structure can be as shown in table 4 with corresponding carrier electric energy meter address information table；Patrolled according to communication network
The communication path of all nodes can be obtained by collecting topology, as shown in table 5.
Using the single feature of communication path of non-overlapping clustering algorithm formation, as long as concentrator networking twice by before and after
All nodes communication path contrasted it is known that carrier electric energy meter change situation, table 3 and table 5 are contrasted and can gone out
Three kinds of situations below now：
(1) situation that carrier electric energy meter is removed.
Table 3 understands that the communication path all existed in two lists is with the contrast of table 5：It is not present in 0-000004, table 5 logical
Letter path is：0-000004-000007,0-000004-000007-000010, can determine that the carrier wave that mailing address is 0000007
Electric energy meter is removed.
Table 4- node numbers and corresponding carrier electric energy meter address information table (current)
| Node number | Mailing address |
| 1 | 000001 |
| 2 | 000002 |
| 3 | 000003 |
| 4 | 000004 |
| 5 | 000011 |
| 6 | 000005 |
| 7 | 000012 |
| 8 | 000013 |
| 9 | 000008 |
| 10 | 000009 |
Table 5- obtains the communication path (current) of node according to communication network logical topology
| 0-000001 |
| 0-000001-000005 |
| 0-000001-000012 |
| 0-000001-000012-000008 |
| 0-000001-000012-000009 |
| 0-000002 |
| 0-000003 |
| 0-000003-000013 |
| 0-000004 |
| 0-000011 |
(2) carrier electric energy meter increases situation newly.
Contrast table 3 understands to add a new node in the first layer of network, led to table 5 and logical topological structure
Letter path is：0-000011.There is communication path in this appearance 5：
0-000003-000013, and there was only 0-000003 in table 3, therefore it 000013 is newly-increased carrier wave electricity that mailing address, which is,
Can table.
(3) situation that carrier electric energy meter is changed
There are two communication paths in table 3：0-000001-000006-000008,0-000001-000006-000009 and table
Two communication paths in 5：0-000001-000012-000008,0-000001-000012-000009 contrast are understood communicatedly
Location is replaced for 000006 carrier electric energy meter, and the carrier electric energy meter mailing address after replacing is 000012.
Thus it is defined as follows carrier electric energy meter change type decision rule：
(1) situation that carrier electric energy meter is removed.
Compare two communication path tables, find out from concentrator to certain node identical communication path in table 3 and table 5, if table 3
In there is next node using the node as relaying, and there is no other nodes in table 5 under the node, then filter out this in table 3
The mailing address of the next node of node, and judge that the table is removed.
(2) situation that carrier electric energy meter is changed.
Compare two communication path tables, the first situation is found out in table 3 and table 5 from concentrator to the communication of some node
Path is that these paths have identical beginning and end, finds out carrier electric energy meter mailing addresses different in two communication paths,
Then judge that the table is replaced.Second of situation, finds out other carrier electric energy meter mailing addresses different with terminal is removed in table 5 of table 3
All identical path, then judge that the table is replaced.
(3) the newly-increased situation of carrier electric energy meter
Compare two communication path tables, find out from concentrator to certain node identical communication path in table 3 and table 5, if table 5
In there is next node using the node as relaying, and there is no other nodes in table 3 under the node, then filter out this in table 5
The mailing address of the next node of node, judges the table to be newly-increased.
Based on above operation principle so that the utility model power line carrier, PLC kilowatt meter reading-out system, first carrier can be passed through
The data signal that micro-control unit is exported is changed into the analog signal that power line can be transmitted, analog signal warp by data collector
Cross first carrier data collector and filter out the noise adulterated in signal, and be coupled to each carrier electric energy meter is transferred on power line
Second carrier data transceiver；Second carrier data transceiver can as relay point by the analog signal be transmitted to communication away from
From other carrier electric energy meters farther out；The feedback signal of each carrier electric energy meter is divided through first carrier data collector from power line
After filtering, feedback signal is changed into digital data transmission by first carrier data collector and gives micro-control unit processing, it is micro-
Result after processing is transferred to main website by control unit by GPRS communication modules.The utility model can be by carrier electric energy meter
The change real-time data sharing such as replacing, dismounting, newly-increased is to main website, while so that all carrier electric energy meters can be carried out with concentrator
Communication；It ensure that the carrier electric energy meter information list in live carrier electric energy meter information, concentrator, the carrier electric power in main website
Table information is consistent, can greatly improve the collection success rate of centralized meter-reading system.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. a kind of power line carrier, PLC kilowatt meter reading-out system, it is characterised in that including concentrator and at least one layer of carrier electric energy meter；Institute
Stating concentrator includes micro-control unit, first carrier data collector and GPRS communication modules；The carrier electric energy meter includes
Second carrier data transceiver；
The micro-control unit connects power line by the first carrier data collector, is connected by the GPRS communication modules
Meet main website；The carrier electric energy meter connects the power line by the second carrier data transceiver.
2. power line carrier, PLC kilowatt meter reading-out system according to claim 1, it is characterised in that the first carrier data transmit-receive
Device includes the first peripheral circuit of first carrier chip and correlation；First peripheral circuit includes the first output narrow-band filtering
Device, first input narrow band filter, the first signal amplification circuit, the first isolation coupling circuit, first voltage control circuit and
First current control circuit；
The first carrier chip connects the micro-control unit by communication interface, control interface respectively；
The signal input part of the first output narrow band filter connects the first carrier chip, and signal output part passes through described
First isolation coupling circuit connects the power line；The first voltage control is electrically connected to the first carrier chip and institute
State between the first output narrow band filter；
It is described first input narrow band filter signal input part by first signal amplification circuit connection described first every
From termination power, signal output part connects the first carrier chip；The first carrier chip also with the first electric current control
Circuit processed is connected.
3. power line carrier, PLC kilowatt meter reading-out system according to claim 2, it is characterised in that the first carrier chip is electricity
Power carrier modem chip ST7538.
4. power line carrier, PLC kilowatt meter reading-out system according to claim 2, it is characterised in that first micro-control unit is
ATmega64 microprocessors.
5. power line carrier, PLC kilowatt meter reading-out system according to claim 2, it is characterised in that the first isolation coupling circuit
It isolates that termination power, B isolate termination power and C isolates termination power including connecting the A of the power line respectively.
6. power line carrier, PLC kilowatt meter reading-out system according to claim 1, it is characterised in that the second carrier data transmitting-receiving
Device includes the second peripheral circuit of the second carrier chip and correlation；Second peripheral circuit includes the second output narrow-band filtering
Device, second input narrow band filter, secondary signal amplifying circuit, the second isolation coupling circuit, second voltage control circuit and
Second current control circuit；
The signal input part of the second output narrow band filter connects second carrier chip, and signal output part passes through described
Second isolation coupling circuit connects the power line；The second voltage control is electrically connected to second carrier chip and institute
State between the second output narrow band filter；
It is described second input narrow band filter signal input part by the secondary signal amplifying circuit connection described second every
From termination power, signal output part connects second carrier chip；Second carrier chip also with the second electric current control
Circuit processed is connected.
7. power line carrier, PLC kilowatt meter reading-out system according to claim 6, it is characterised in that second carrier chip is electricity
Power carrier modem chip ST7538.
8. the power line carrier, PLC kilowatt meter reading-out system according to claim 1 to 7 any one, it is characterised in that the concentration
Device also includes the power module for connecting the micro-control unit, being powered to the micro-control unit.
9. the power line carrier, PLC kilowatt meter reading-out system according to claim 1 to 7 any one, it is characterised in that the concentration
Device also includes connecting the micro-control unit, preserves the communication data and the storage dress of carrier electric energy meter change data
Put.
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| CN201720180471.4U CN206472130U (en) | 2017-02-27 | 2017-02-27 | Power line carrier, PLC kilowatt meter reading-out system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720180471.4U CN206472130U (en) | 2017-02-27 | 2017-02-27 | Power line carrier, PLC kilowatt meter reading-out system |
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| CN206472130U true CN206472130U (en) | 2017-09-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242942A (en) * | 2017-11-28 | 2018-07-03 | 珠海格力电器股份有限公司 | A kind of communication device, method, storage medium and equipment |
| CN108764939A (en) * | 2018-05-11 | 2018-11-06 | 深圳供电局有限公司 | A kind of electric power enterprise CRM system and its method |
| CN108809358A (en) * | 2018-05-25 | 2018-11-13 | 青岛东软载波科技股份有限公司 | A kind of GPRS signal communications extension equipment |
| CN110187171A (en) * | 2019-06-25 | 2019-08-30 | 武汉阿迪克电子股份有限公司 | A kind of the LoRaWAN electric energy meter and method of network entry of quick networking mechanism |
| CN111932861A (en) * | 2020-07-16 | 2020-11-13 | 国网湖北省电力有限公司宜昌供电公司 | Multifunctional power carrier concentrator |
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2017
- 2017-02-27 CN CN201720180471.4U patent/CN206472130U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242942A (en) * | 2017-11-28 | 2018-07-03 | 珠海格力电器股份有限公司 | A kind of communication device, method, storage medium and equipment |
| CN108764939A (en) * | 2018-05-11 | 2018-11-06 | 深圳供电局有限公司 | A kind of electric power enterprise CRM system and its method |
| CN108809358A (en) * | 2018-05-25 | 2018-11-13 | 青岛东软载波科技股份有限公司 | A kind of GPRS signal communications extension equipment |
| CN110187171A (en) * | 2019-06-25 | 2019-08-30 | 武汉阿迪克电子股份有限公司 | A kind of the LoRaWAN electric energy meter and method of network entry of quick networking mechanism |
| CN111932861A (en) * | 2020-07-16 | 2020-11-13 | 国网湖北省电力有限公司宜昌供电公司 | Multifunctional power carrier concentrator |
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