CN104486031B - The long data transmission method of intelligent electric meter - Google Patents

The long data transmission method of intelligent electric meter Download PDF

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CN104486031B
CN104486031B CN201410675061.8A CN201410675061A CN104486031B CN 104486031 B CN104486031 B CN 104486031B CN 201410675061 A CN201410675061 A CN 201410675061A CN 104486031 B CN104486031 B CN 104486031B
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data block
client
ammeter
bna
streaming
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CN104486031A (en
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周良璋
张向程
姚青
刘高峰
刘鹏
周剑波
朱程鹏
范有
罗彬�
丁佐明
鲍红伟
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Hangzhou Hexing Electrical Co Ltd
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Hangzhou Hexing Electrical Co Ltd
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Abstract

The present invention relates to the long data transmission method of intelligent electric meter.Invention provides the long data transmission method of intelligent electric meter, improves communication efficiency.Scheme：1st, client is sent out to ammeter and is asked, and carries the maximum data block number W for once spreading delivery of energy reception；2nd, ammeter, which is disassembled, replys data into multiple data blocks, compares its size with W, if more than W, goes to step 3；If being less than or equal to W, 6 are gone to step；3rd, ammeter transmits W data block to client, and STR=0 is carried in last data block of this streaming；4th, client replys acknowledgement frame, makes BN add 1, BNA to be carried after adding W as new parameter；5th, ammeter receives acknowledgement frame, judges that remainder does not send out data block number and the size of W, if more than W, goes to step 3；If being less than or equal to W, 6 are gone to step；6th, ammeter is by each transmission of data blocks to client, carrying LB=1, STR=0 when transmitting last data block.Invention is used for the intelligent electric meter communications field.

Description

The long data transmission method of intelligent electric meter
Technical field
The present invention relates to a kind of long data transmission method of intelligent electric meter, is primarily adapted for use in intelligent electric meter communication technology neck Domain.
Background technology
With the development of intelligent grid, the function of electric energy meter is increasingly abundanter and powerful, usually will be from intelligence in practical application Load curve, event log and setting TOU (Time Of Use) scheme etc. can be read in ammeter, at this time, not require nothing more than communication speed Rate is high, also has long data transmission mechanism to intelligent electric meter requirement.Have since intelligent electric meter communication sends and receives buffer capacity Limit, when the data of communications between ammeter and client are long, it is necessary to which deblocking is sent, but the mark of international communication at present There is the definition for having block transmission to long data in quasi- IEC62056 series, but this method does not support breakpoint transmission, any one Dropout of data block results in whole loss of long data, and sender must transmit from first database BOB(beginning of block) again；And The transmission of each data block is required for the confirmation of recipient, and communication efficiency is relatively low.
The content of the invention
The technical problem to be solved in the present invention is：A kind of long data of intelligent electric meter are provided for above-mentioned problem to pass Transmission method, sender can use the form of stream to send long deblocking, support to confirm the disposable of multiple data blocks, to carry High communication efficiency.
The technical solution adopted in the present invention is：The long data transmission method of intelligent electric meter, it is characterised in that：Transmitting procedure It is middle to carry following parameter,
LB, respectively with 1 and 0 come represent current transmission whether be this long data transfer last data block；
STR, represents whether this streaming terminates with 0 and 1 respectively；
W, communication under normal circumstances, represent once to spread the maximum data block number of delivery of energy reception；In the case of communication abnormality, Represent that recipient wishes the data block number that a streaming receives；
BN, data block numbering, since 1；
BNA, under normal circumstances, the BNA that recipient replys is the last data block numbering being properly received for communication；Communicate different In the case of often, the BNA that recipient replys is that the first data block number lost subtracts 1；
S1, client are sent to ammeter copies and accepts request, while carries parameter LB=1, STR=0, BN=1, BNA=0 and one Its maximum data block number W that can receive of secondary streaming；
S2, ammeter receive it is described copy and accept ask sum of parameters after, data will be replied and disassemble into multiple data blocks, and judge to tear open The number of data block and the size of W after solution, if the number for disassembling rear data block is more than W, perform step S3；If disassemble rear data block Number be less than or equal to W, perform step S6；
S3, ammeter continuously transmit W data block to client successively by the way of streaming, and in this streaming STR=0 is carried in last data block and informs that this streaming of client terminates；
S4, client reply acknowledgement frame, and make BN add 1, BNA to be carried on after adding W as new parameter in the acknowledgement frame；
After S5, ammeter receive the acknowledgement frame and parameter, judge that remainder does not send out data block number and the size of W, if remaining Under do not send out data block number and be more than W, perform step S3；If remainder, which does not send out data block number, is less than or equal to W, step S6 is performed；
S6, ammeter are continuously transmitted each data block to client by the way of streaming successively, and are transmitting last LB=1, STR=0 are carried during a data block and informs this long the data transfer ends of client, so far, this long data transfer knot Beam.
In transmitting procedure, if client does not receive the data block that numbering is X, client sends acknowledgement frame to ammeter, and Carry parameter LB=1, STR=0, W=1, BNA=X-1, it is desirable to which ammeter resends the data block that numbering is X.
In transmitting procedure, if client does not receive the continuous n+1 data block that numbering is X-X+n, client is to ammeter Acknowledgement frame is sent, and carries parameter LB=1, STR=0, W=n+1, BNA=X-1, it is desirable to which it is X-X+ that ammeter, which resends numbering, The continuous n+1 data block of n；The continuous n+1 data block that the numbering is X-X+n is located at in a streaming.
The long data transmission method of intelligent electric meter, it is characterised in that：Following parameter is carried in transmitting procedure,
LB, respectively with 1 and 0 come represent current transmission whether be this long data transfer last data block；
STR, represents whether this streaming terminates with 0 and 1 respectively；
W, communication under normal circumstances, represent once to spread the maximum data block number of delivery of energy reception；In the case of communication abnormality, Represent that recipient wishes the data block number that a streaming receives；
BN, data block numbering, since 1；
BNA, under normal circumstances, the BNA that recipient replys is the last data block numbering being properly received for communication；Communicate different In the case of often, the BNA that recipient replys is that the first data block number lost subtracts 1；
S11, the client data to be sent it disassemble into multiple data blocks, and are only sent when first time sending request One data block, while carry parameter LB=1, STR=0, W=1, BN=1, BNA=0；
S12, ammeter receive client ask sum of parameters after, acknowledged client end, and carry parameter LB=1, STR=0, Its maximum data block number W that can receive of BN=1, BNA=1 and streaming, informs its corresponding ammeter branch of client Hold streaming；
S13, client judge that remainder does not send out data block number and the size of W, if remainder does not send out data block number and is more than W, Perform step S14；If remainder, which does not send out data block number, is less than or equal to W, step S16 is performed；
S14, client continuously transmit W data block to ammeter successively by the way of streaming, are taken in transmitting procedure Band parameter LB=0, and carry STR=0 in last data block of this streaming and inform that this streaming of ammeter terminates；
S15, ammeter reply acknowledgement frame, and make BN add 1, BNA to be carried on after adding W as new parameter in the acknowledgement frame, Then step S13 is performed；
S16, client are continuously transmitted each data block to ammeter by the way of streaming successively, and are transmitting last Parameter LB=1, STR=0 is carried during a data block and informs that client sends end of data in this communication of ammeter；
S17, ammeter make response, and carry parameter BNA, its numerical value is the number for the multiple data blocks disassembled, and is informed All data blocks of client are all properly received.
In transmitting procedure, if ammeter does not receive the data block that numbering is X, ammeter sends acknowledgement frame to client, and takes Band parameter LB=1, STR=0, W=1, BNA=X-1, it is desirable to which client resends the data block that numbering is X.
In transmitting procedure, if ammeter does not receive the continuous n+1 data block that numbering is X-X+n, ammeter is sent out to client Acknowledgement frame is sent, and carries parameter LB=1, STR=0, W=n+1, BNA=X-1, it is desirable to which it is X-X+ that client, which resends numbering, The continuous n+1 data block of n；The continuous n+1 data block that the numbering is X-X+n is located at in a streaming.
The beneficial effects of the invention are as follows：The present invention is directed to the transmission of intelligent electric meter, receives the features such as buffer pool size is limited, It is proposed a kind of long data transmission method based on manifold formula, and carry in each transmitting procedure five parameters (including LB, Respectively with 1 and 0 come represent current transmission whether be this long data transfer last data block；STR, respectively with 0 and 1 Represent whether this streaming terminates；W, communication under normal circumstances, represent once to spread the maximum data block number of delivery of energy reception； In the case of communication abnormality, represent that recipient wishes the data block number that a streaming receives；BN, data block numbering, is opened from 1 Begin；BNA, under normal circumstances, the BNA that recipient replys is the last data block numbering being properly received for communication；Communication abnormality feelings Under condition, the BNA that recipient replys is that the first data block number lost subtracts 1), it can either realize breakpoint transmission, and can prop up Hold recipient to confirm the disposable of multiple data blocks, than existing long data block transmission method, this method is imitated in communication It is greatly improved in terms of rate and communication reliability.In addition, the present invention is also to intelligent electric meter under intelligent grid environment The demand of big data collection provides technical foundation.
Brief description of the drawings
Fig. 1 is the normal flow figure that ammeter replys deblocking transmission when client of the present invention copies and accepts ammeter.
Fig. 2 is the abnormal flow chart that ammeter replys deblocking transmission when client of the present invention copies and accepts ammeter.
Fig. 3 be client arrange parameter of the present invention to ammeter when send out deblocking transmission flow chart.
Embodiment
There are two kinds of situations to need to transmit long data in intelligent electric meter communication process, the first is that client is read from ammeter During some data such as load curve, event log etc., the data that intelligent electric meter is replied need to be disassembled using long data transmission method；The Two kinds are then client arrange parameters when for example TOU schemes are to intelligent electric meter, and the data that client is sent need to use long data transfer Method is disassembled.
In transmission method of the present invention, five parameters are carried in each transmitting procedure：
LB, when taking 1, represent current transmission whether be this long data transfer last data block；When taking 0, represent Current transmission is not last data block of this long data transfer；
STR, when taking 1, represents that this streaming does not terminate；When taking 0, represent that this streaming terminates；
W, communication under normal circumstances, represent once to spread the maximum data block number of delivery of energy reception；In the case of communication abnormality, Represent that recipient wishes the data block number that a streaming receives；
BN, sender sends out the numbering of data block, since 1；
BNA, under normal circumstances, the BNA that recipient replys is the last data block numbering being properly received for communication；Communicate different In the case of often, the BNA that recipient replys is that the first data block number lost subtracts 1.
When client copies and accepts intelligent electric meter, the data that ammeter is replied are long, and transmitting procedure includes：
S1, client are sent to ammeter copies and accepts request, while carries parameter LB=1, STR=0, BN=1, BNA=0 and one Its maximum data block number W that can receive of secondary streaming；
S2, ammeter receive it is described copy and accept ask sum of parameters after, data will be replied and disassemble into multiple data blocks, and judge to tear open The number of data block and the size of W after solution, if the number for disassembling rear data block is more than W, perform step S3；If disassemble rear data block Number be less than or equal to W, perform step S6；
S3, ammeter continuously transmit W data block to client successively by the way of streaming, and in this streaming STR=0 is carried in last data block and informs that this streaming of client terminates；
S4, client reply acknowledgement frame, and make BN add 1, BNA to be carried on after adding W as new parameter in the acknowledgement frame；
After S5, ammeter receive the acknowledgement frame and parameter, judge that remainder does not send out data block number and the size of W, if remaining Under do not send out data block number and be more than W, perform step S3；If remainder, which does not send out data block number, is less than or equal to W, step S6 is performed；
S6, ammeter are continuously transmitted each data block to client by the way of streaming successively, and are transmitting last LB=1, STR=0 are carried during a data block and informs this long the data transfer ends of client, so far, this long data transfer knot Beam.
In transmitting procedure, if client does not receive the data block that numbering is X, client sends acknowledgement frame to ammeter, and Carry parameter LB=1, STR=0, W=1, BNA=X-1, it is desirable to which ammeter resends the data block that numbering is X.
In transmitting procedure, if client does not receive the continuous n+1 data block that numbering is X-X+n, client is to ammeter Acknowledgement frame is sent, and carries parameter LB=1, STR=0, W=n+1, BNA=X-1, it is desirable to which it is X-X+ that ammeter, which resends numbering, The continuous n+1 data block of n；The continuous n+1 data block that the numbering is X-X+n is located at in a streaming.
As shown in Figure 1, the data that the present embodiment intelligent electric meter is replied need to disassemble into 5 transmission of data blocks, once spread The defeated maximum data block number that it can be received is 3, and specific transmitting procedure is：
Client sends to ammeter and copies and accepts request, while carries parameter LB=1, STR=0, W=3, BN=1, BNA=0, Inform that its maximum data block number that can be received of its streaming of ammeter is 3；
Ammeter receive it is described copy and accept ask sum of parameters after, data will be replied and disassemble into 5 data blocks, and use streaming Mode continuously transmit 3 data blocks (numbering be respectively 1,2,3) successively to client, and this streaming last STR=0 is carried in data block and informs that this streaming of client terminates；
Client replys acknowledgement frame, and carries parameter LB=1, STR=0, W=3, BN=2, BNA=3, is accused with BNA=3 Know that client numbering is 3 and data block before is properly received, i.e. the data block of numbering 1,2,3 is properly received；
Ammeter is continuously transmitted remaining two data blocks to client by the way of streaming successively, and in transmission most LB=1, STR=0 are carried during the latter data block and informs this long the data transfer ends of client, so far, this long data passes Defeated end.
As shown in Fig. 2, intelligent electric meter communication abnormality occurs when sending the 1st and the 3rd data block, client is not received To the two data blocks, client can represent that numbering is that 0 later data block is not received by with BNA=0 in acknowledgement frame, use W=1 represents that numbering only has 1 data block to be not properly received after being 0, and intelligent electric meter resends the data block that numbering is 1； Client is reaffirmed in request represents that numbering is that 2 later data blocks are not received by with BNA=2, and client is represented with W=3 The maximum data block number that delivery of energy reception is once spread at end is 3, intelligent electric meter by follow-up 3 data blocks (numbering is respectively 3, 4th, 5) transfer, and carry LB=1, STR=0 when transmitting last data block and inform this long data transfer knot of client Beam, so far, this long the data transfer ends.
When client arrange parameter to intelligent electric meter, when arrange parameter data are long, transmitting procedure includes：
S11, the client data to be sent it disassemble into multiple data blocks, and are only sent when first time sending request One data block, while carry parameter LB=1, STR=0, W=1, BN=1, BNA=0；
S12, ammeter receive client ask sum of parameters after, acknowledged client end, and carry parameter LB=1, STR=0, Its maximum data block number W that can receive of BN=1, BNA=1 and streaming, informs its corresponding ammeter branch of client Hold streaming；
S13, client judge that remainder does not send out data block number and the size of W, if remainder does not send out data block number and is more than W, Perform step S14；If remainder, which does not send out data block number, is less than or equal to W, step S16 is performed；
S14, client continuously transmit W data block to ammeter successively by the way of streaming, are taken in transmitting procedure Band parameter LB=0, and carry STR=0 in last data block of this streaming and inform that this streaming of ammeter terminates；
S15, ammeter reply acknowledgement frame, and make BN add 1, BNA to be carried on after adding W as new parameter in the acknowledgement frame, Then step S13 is performed；
S16, client are continuously transmitted each data block to ammeter by the way of streaming successively, and are transmitting last Parameter LB=1, STR=0 is carried during a data block and informs that client sends end of data in this communication of ammeter；
S17, ammeter make response, and carry parameter BNA, its numerical value is the number for the multiple data blocks disassembled, and is informed All data blocks of client are all properly received.
In transmitting procedure, if ammeter does not receive the data block that numbering is X, ammeter sends acknowledgement frame to client, and takes Band parameter LB=1, STR=0, W=1, BNA=X-1, it is desirable to which client resends the data block that numbering is X.
In transmitting procedure, if ammeter does not receive the continuous n+1 data block that numbering is X-X+n, ammeter is sent out to client Acknowledgement frame is sent, and carries parameter LB=1, STR=0, W=n+1, BNA=X-1, it is desirable to which it is X-X+ that client, which resends numbering, The continuous n+1 data block of n；The continuous n+1 data block that the numbering is X-X+n is located at in a streaming.
As shown in figure 3, the data of the present embodiment client arrange parameter need to disassemble into 5 transmission of data blocks, once flow The maximum data block number that transmission ammeter can receive is 3, and specific transmitting procedure is：
Due to not knowing whether ammeter supports the block of manifold formula to transmit, client only sends a data when asking for the first time Block, while carry parameter LB=1, STR=0, W=1, BN=1, BNA=0；
Ammeter receive client ask sum of parameters after, acknowledged client end, and carry parameter LB=1, STR=0, W= 3rd, BN=1, BNA=1, inform that its corresponding ammeter of client supports its maximum number that can receive of streaming and streaming It it is 3 according to block number；
Client continuously transmits 3 data blocks (numbering is respectively 2,3,4) to ammeter successively by the way of streaming, passes Entrained parameter LB=0 during defeated, and carry STR=0 in last data block of this streaming and inform ammeter sheet Secondary streaming terminates；
Ammeter replys acknowledgement frame, and carries parameter LB=1, STR=0, W=3, BN=2, BNA=4, is informed with BNA=4 Client numbering is 4 and data block before is properly received, i.e., the data block that numbering is 1,2,3,4 normally receives；
A remaining data block is transmitted to ammeter by client by the way of streaming, and carry parameter LB=1, STR=0 informs that client sends end of data in this communication of ammeter；
Ammeter makes response, and carries parameter LB=1, STR=0, W=1, BN=3, BNA=5, informs that client owns Data block is all properly received.

Claims (6)

  1. A kind of 1. long data transmission method of intelligent electric meter, it is characterised in that：Following parameter is carried in transmitting procedure,
    LB, respectively with 1 and 0 come represent current transmission whether be this long data transfer last data block；
    STR, represents whether this streaming terminates with 0 and 1 respectively；
    W, communication under normal circumstances, represent once to spread the maximum data block number of delivery of energy reception；In the case of communication abnormality, represent Recipient wishes the data block number that a streaming receives；
    BN, data block numbering, since 1；
    BNA, under normal circumstances, the BNA that recipient replys is the last data block numbering being properly received for communication；Communication abnormality feelings Under condition, the BNA that recipient replys is that the first data block number lost subtracts 1；
    S1, client are sent to ammeter copies and accepts request, while carries parameter LB=1, STR=0, BN=1, BNA=0 and once flow Transmit its maximum data block number W that can be received；
    S2, ammeter receive it is described copy and accept ask sum of parameters after, data will be replied and disassemble into multiple data blocks, and judged after disassembling The number of data block and the size of W, if the number for disassembling rear data block is more than W, perform step S3；If disassemble of rear data block Number is less than or equal to W, performs step S6；
    S3, ammeter continuously transmit W data block to client successively by the way of streaming, and in the last of this streaming STR=0 is carried in one data block and informs that this streaming of client terminates；
    S4, client reply acknowledgement frame, and make BN add 1, BNA to be carried on after adding W as new parameter in the acknowledgement frame；
    After S5, ammeter receive the acknowledgement frame and parameter, judge that remainder does not send out data block number and the size of W, if remainder is not Hair data block number is more than W, performs step S3；If remainder, which does not send out data block number, is less than or equal to W, step S6 is performed；
    S6, ammeter are continuously transmitted each data block to client by the way of streaming successively, and are transmitting last number Inform that this communications of client terminate according to LB=1, STR=0 is carried during block, so far, this long the data transfer ends.
  2. 2. the long data transmission method of intelligent electric meter according to claim 1, it is characterised in that：In transmitting procedure, if objective Family end does not receive the data block that numbering is X, then client sends acknowledgement frame to ammeter, and carries parameter LB=1, STR=0, W= 1st, BNA=X-1, it is desirable to which ammeter resends the data block that numbering is X.
  3. 3. the long data transmission method of intelligent electric meter according to claim 1, it is characterised in that：In transmitting procedure, if objective Family end does not receive the continuous n+1 data block that numbering is X-X+n, then client sends acknowledgement frame to ammeter, and carries parameter LB =1, STR=0, W=n+1, BNA=X-1, it is desirable to which ammeter resends the continuous n+1 data block that numbering is X-X+n；It is described The continuous n+1 data block that numbering is X-X+n is located at in a streaming.
  4. A kind of 4. long data transmission method of intelligent electric meter, it is characterised in that：Following parameter is carried in transmitting procedure,
    LB, respectively with 1 and 0 come represent current transmission whether be this long data transfer last data block；
    STR, represents whether this streaming terminates with 0 and 1 respectively；
    W, communication under normal circumstances, represent once to spread the maximum data block number of delivery of energy reception；In the case of communication abnormality, represent Recipient wishes the data block number that a streaming receives；
    BN, data block numbering, since 1；
    BNA, under normal circumstances, the BNA that recipient replys is the last data block numbering being properly received for communication；Communication abnormality feelings Under condition, the BNA that recipient replys is that the first data block number lost subtracts 1；
    S11, the client data to be sent it disassemble into multiple data blocks, and only send one when first time sending request Data block, while carry parameter LB=1, STR=0, W=1, BN=1, BNA=0；
    S12, ammeter receive client ask sum of parameters after, acknowledged client end, and carry parameter LB=1, STR=0, BN= 1st, its maximum data block number W that can receive of BNA=1 and streaming, informs that its corresponding ammeter of client supports stream Transmission；
    S13, client judge that remainder does not send out data block number and the size of W, if remainder does not send out data block number and is more than W, perform Step S14；If remainder, which does not send out data block number, is less than or equal to W, step S16 is performed；
    S14, client continuously transmit W data block to ammeter successively by the way of streaming, entrained ginseng in transmitting procedure Number LB=0, and carry STR=0 in last data block of this streaming and inform that this streaming of ammeter terminates；
    S15, ammeter reply acknowledgement frame, and make BN add 1, BNA to be carried on after adding W as new parameter in the acknowledgement frame, then Perform step S13；
    S16, client are continuously transmitted each data block to ammeter by the way of streaming successively, and are transmitting last number Inform that client sends end of data in this communication of ammeter according to parameter LB=1, STR=0 is carried during block；
    S17, ammeter make response, and carry parameter BNA, its numerical value is the number for the multiple data blocks disassembled, and informs client All data blocks are held all to be properly received.
  5. 5. the long data transmission method of intelligent electric meter according to claim 4, it is characterised in that：In transmitting procedure, if electric Table do not receive numbering be X data block, then ammeter to client send acknowledgement frame, and carry parameter LB=1, STR=0, W=1, BNA=X-1, it is desirable to which client resends the data block that numbering is X.
  6. 6. the long data transmission method of intelligent electric meter according to claim 4, it is characterised in that：In transmitting procedure, if electric Table does not receive the continuous n+1 data block that numbering is X-X+n, then ammeter sends acknowledgement frame to client, and carries parameter LB= 1st, STR=0, W=n+1, BNA=X-1, it is desirable to which client resends the continuous n+1 data block that numbering is X-X+n；It is described The continuous n+1 data block that numbering is X-X+n is located at in a streaming.
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CN107342983A (en) * 2017-06-09 2017-11-10 深圳震有科技股份有限公司 A kind of transactional handles the method and system of the efficient UDP communications of more subpackages
CN111341083A (en) * 2020-01-15 2020-06-26 武汉星山河智能科技有限公司 Electric meter wireless data transmission equipment based on NB-IOT

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Publication number Priority date Publication date Assignee Title
CN102306954A (en) * 2011-07-13 2012-01-04 广东电网公司电力科学研究院 Intelligent power consumption information interactive management system
CN103219804A (en) * 2013-05-08 2013-07-24 章志福 Wireless electric energy management instrument applicable to energy management and control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102306954A (en) * 2011-07-13 2012-01-04 广东电网公司电力科学研究院 Intelligent power consumption information interactive management system
CN103219804A (en) * 2013-05-08 2013-07-24 章志福 Wireless electric energy management instrument applicable to energy management and control system

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