CN101435832B - Method for reading three-charge rate and four-charge rate electrical energy meter of low voltage carrier wave meter reading collection terminal - Google Patents
Method for reading three-charge rate and four-charge rate electrical energy meter of low voltage carrier wave meter reading collection terminal Download PDFInfo
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Abstract
The invention relates to a method for reading a three-rate electric energy meter and a four-rate electric energy meter by the collecting terminal of a low-pressure carrier wave reading meter. The method is characterized in that the electric energy meter receives a 901F instruction emitted from the collecting terminal and returns the 901F instruction to a data frame of the collecting terminal; firstly, the collecting terminal reads L and former data; according to the size of L, the electric energy meter is judged to be the three-rate meter or the four-rate meter; subsequently, according to the judgment on the three-rate meter or the four-rate meter, the collecting terminal is correspondingly provided with different collecting forms of the three-rate meter or the four-rate meter on subsequent data of L, thereby rightly resolving the returned data of electric energy. The method is applied in order that the collecting terminal only needs to produce according to the same specification model and is greatly convenient for production management. When the collecting terminal is mounted on the spot, only one collecting terminal is arranged in one electricity meter box and can read the three-rate meter electric energy meter and the four-rate meter electric energy meter, thereby reducing use cost.
Description
Technical field
The present invention relates to a kind ofly copy and accept the method for electric energy meter, a kind of method that compatibility is copied and accepted three rates, four charge rate electric energy meters that is used for of more specifically saying so through remote low pressure carrier meter reading system acquisition terminal.
Background technology
Acquisition terminal in the low pressure carrier wave kilowatt meter reading-out system is the registration that is used to copy and accept electric energy meter.In order to raise the efficiency, generally be to adopt the Data Identification " 901F " that reads the meritorious data acquisition of forward in " DL/T645-1997 multifunctional electric energy meter communication protocol " to realize.
In " DL/T645-1997 multifunctional electric energy meter communication protocol ", the Frame that acquisition terminal is handed down to electric energy meter is:
FE?FE?68H?A0?A1?A2?A3?A4?A5?68H?C?L?D0?D1?CS?16H。
Wherein " FE " is leading character, and first " 68H " is start-of-frame, and " A0 A1 A2 A3 A4 A5 " is the table address territory; Second " 68H " is the address field end mark, and " C " is control code, the control code C=01H of read data; " L " data length, " D0D1 " is the data item identifier sign indicating number, adds 33H by byte; " CS " is the frame check sign indicating number, from start-of-frame begin before the check code all each bytes and mould 256, " 16H " is the frame end symbol
The Frame that electric energy meter returns to collector is:
FE?FE?68H?A0?A1?A2?A3?A4?A5?68H?C?L?D0?D1?N1?N2?Nn?CS?16H。
Wherein " FE " is leading character, and first " 68H " is start-of-frame, and " A0 A1 A2 A3 A4 A5 " is the table address territory; Second " 68H " is the address field end mark, and " C " is control code, returns the control code C=81H of read data frame; " L " is data length, L=2+n, and " D0 D1 " is the Data Identification sign indicating number; Add 33H by byte, " N1 N2 Nn " is n the data of returning, and adds 33H by byte; " CS " be frame check with, from start-of-frame begin before the check code all bytes and mould 256, " 16H " is the frame end symbol.
The data length that dissimilar electric energy meters returns is different; The data layout that common single-phase multi-rate electric energy meter returns is total, peak, flat, paddy; 4 bytes of each rate are totally 16 bytes; The data layout that three-phase electric energy meter returns is total, point, peak, put down, paddy, and 4 bytes of each rate are totally 20 bytes.
Based on this prior art; Use three rate acquisition terminals can normally copy and accept three charge rate electric energy meters; But when running into four charge rate electric energy meters, because of the return data frame of four charge rate electric energy meters 4 bytes that many than three charge rate electric energy meters, three rate acquisition terminals are read " CS " frame check and " 16H " frame end symbol less than four charge rate electric energy meters; Return data frame format mistake appears, copy and accept less than.
In like manner, use four rate acquisition terminals can normally copy and accept four charge rate electric energy meters, but when running into three charge rate electric energy meters; Return frame because of the data of three charge rate electric energy meters and lack 4 bytes than four rate ammeters; Four rate acquisition terminals can continue to wait for the data of returning, and time-out error occurs, also copy and accept less than.
Obviously, in the above-mentioned prior art acquisition terminal can only copy and accept the electric energy meter of three rates or the electric energy meter of four rates separately, can not compatibility copy and accept.When producing acquisition terminal, need to indicate model to show differentiation like this, this has obviously increased production, and has increased the labor capacity in the management process.Though; 64 electric energy meters of next acquisition terminal readable of normal condition, but when centralized meter-reading system is installed, also to corresponding acquisition terminal be installed according to the type selecting of ammeter; If an ammeter box has been installed two types electric energy meter; Just need two types acquisition terminal is installed, increase the equipment use amount thus, increase cost.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point; Provide a kind of low pressure carrier wave acquisition terminal of checking meter to be used to copy and accept the method for three rates, four charge rate electric energy meters; Check meter so that in same ammeter box, can accomplish through the unified acquisition terminal of installing one type, reduce the equipment use amount to the electric energy meter of two types of three rates and four rates.
Technical solution problem of the present invention adopts following technical scheme:
Low pressure carrier wave of the present invention is checked meter, and acquisition terminal is used to copy and accept three rates, four charge rate electric energy meter methods are:
To " DL/T645-1997 multifunctional electric energy meter communication protocol ", the Frame that acquisition terminal is handed down to electric energy meter is:
FE?FE?68H?A0?A1?A2?A3?A4?A5?68H?C?L?D0?D1?CS?16H
Wherein " FE " is leading character, and first " 68H " is start-of-frame, and " A0 A1 A2 A3 A4 A5 " is the table address territory; Second " 68H " is the address field end mark, and " C " is control code, the control code C=01H of read data; " L " is data length, and " D0 D1 " is the data item identifier sign indicating number, adds 33H by byte; " CS " is the frame check sign indicating number, from start-of-frame begin before the check code all each bytes and mould 256, " 16H " is the frame end symbol;
The Frame that electric energy meter returns to acquisition terminal is:
FE?FE?68H?A0?A1?A2?A3?A4?A5?68H?C?L?D0?D1?N1?N2?Nn?CS?16H
Wherein " FE " is leading character, and first " 68H " is start-of-frame, and " A0A1A2A3A4A5 " is the table address territory; Second " 68H " is the address field end mark, and " C " is control code, returns the control code C=81H of read data frame; " L " is data length, and L=2+n, " D0D1 " are the Data Identification sign indicating numbers; Add 33H by byte, " N1N2Nn " is n the data of returning, " CS " be frame check with; From start-of-frame begin before the check code all bytes and mould 256, " 16H " is the frame end symbol;
The characteristics of the inventive method receive acquisition terminal for electric energy meter and send " 901F " instruction; Electric energy meter returns to the acquisition terminal Frame; Acquisition terminal reads the data of " L " and front earlier; And judge that according to the size of " L " electric energy meter is three rate scales or four rate scales, the method for judgement is:
If L=12H, then electric energy meter is three rate scales;
If L=16H, then electric energy meter is four rate scales;
Subsequently, acquisition terminal is according to its judgement for three rate scales or four rate scales, and corresponding setting is carried out the different acquisition form of three rate scales or four rate scales for " L " follow-up data, thereby correctly resolves the electric energy data that returns.
Compared with present technology, beneficial effect of the present invention is embodied in:
Application of the present invention only need be produced acquisition terminal by same specifications and models, greatly facilitates production management.When acquisition terminal is installed at the scene,, can compatibility copy and accept three rates, four charge rate electric energy meters, thereby also reduce use cost as long as an ammeter box is adorned one.
Embodiment
To " DL/T645-1997 multifunctional electric energy meter communication protocol ", the Frame that acquisition terminal is handed down to electric energy meter is: FE FE 68H A0 A1 A2 A3 A4 A5 68H C L D0 D1 CS 16H.
Wherein " FE " is leading character, and first " 68H " is start-of-frame, and " A0 A1 A2 A3 A4 A5 " is the table address territory; Second " 68H " is the address field end mark, and " C " is control code, the control code C=01H of read data; " L " is data length, and " D0 D1 " is the data item identifier sign indicating number, adds 33H by byte; " CS " is the frame check sign indicating number, from start-of-frame begin before the check code all each bytes and mould 256, " 16H " is the frame end symbol;
The Frame that electric energy meter returns to acquisition terminal is: FE FE 68H A0 A1 A2 A3 A4 A5 68H C L D0 D1N1 N2 Nn CS 16H.
Wherein " FE " is leading character, and first " 68H " is start-of-frame, and " A0A1A2A3A4A5 " is the table address territory; Second " 68H " is the address field end mark, and " C " is control code, returns the control code C=81H of read data frame; " L " is data length, and L=2+n, " D0D1 " are the Data Identification sign indicating numbers; Add 33H by byte, " N1N2Nn " is n the data of returning, " CS " be frame check with; From start-of-frame begin before the check code all bytes and mould 256, " 16H " is the frame end symbol;
In the present embodiment; Receive " 901F " instruction that acquisition terminal is sent for electric energy meter, electric energy meter returns to the acquisition terminal Frame, and acquisition terminal reads the data of " L " and front earlier; And judge that according to the size of " L " electric energy meter is three rate scales or four rate scales, the method for judgement is:
If L=12H, then electric energy meter is three rate scales;
If L=16H, then electric energy meter is four rate scales;
Subsequently, acquisition terminal is according to its judgement for three rate scales or four rate scales, and corresponding setting is carried out the different acquisition form of three rate scales or four rate scales for " L " follow-up data, thereby correctly resolves the electric energy data that returns.
Such as: when acquisition terminal is copied and accepted ammeter " 33224 ",
Acquisition terminal issues the command frame of checking meter: " FE FE 68 24 32 03 00 00 00 68 01 02 52 C3 41 16 ",
Electric energy meter return data frame " FE FE 68 24 32 03 00 00 00 68 81 12 52 C3 43 45 33 33 33 3,333 33 43 45 33 33 33 33 33 33 45 16 ".
According to returning data length L=12H in the frame, just can confirm that ammeter is three rate ammeters, by three tariff data forms, resolve return data, total electric weight: 12.10, the peak electric weight: 0, the ordinary telegram amount: 12.10, paddy electric weight: 0.
If ammeter return data frame is: " FE FE 68 24 32 03 00 00 00 68 81 16 52 C3 43 45 33 3,333 33 33 33 33 33 33 33 43 45 33 33 33 33 33 33 15 16 ",
Data length L=16H just can confirm that ammeter is four rate ammeters in the frame according to returning, and by four tariff data forms, resolves return data, total electric weight: 12.10, and sharp electric weight: 0, the peak electric weight: 0, the ordinary telegram amount: 12.10, paddy electric weight: 0.
Claims (1)
1. the low pressure carrier wave acquisition terminal of checking meter is used to copy and accept the method for three rates, four charge rate electric energy meters, is that the Frame that acquisition terminal is handed down to electric energy meter is to " DL/T645-1997 multifunctional electric energy meter communication protocol ":
FE?FE?68H?A0A1A2A3A4A568H?C?L?D0D1CS?16H
Wherein " FE " is leading character, and first " 68H " is start-of-frame, and " A0A1A2A3A4A5 " is the table address territory; Second " 68H " is the address field end mark, and " C " is control code, the control code C=01H of read data; " L " is data length, and " D0D1 " is the data item identifier sign indicating number, adds 33H by byte; " CS " is the frame check sign indicating number, from start-of-frame begin before the check code all each bytes and mould 256, " 16H " is the frame end symbol;
The Frame that electric energy meter returns to acquisition terminal is:
FE?FE?68H?A0A1A2A3A4A568H?C?L?D0D1N1N2Nn?CS?16H
Wherein " FE " is leading character, and first " 68H " is start-of-frame, and " A0A1A2A3A4A5 " is the table address territory; Second " 68H " is the address field end mark, and " C " is control code, returns the control code C=81H of read data frame; " L " is data length, and L=2+n, " D0D1 " are the Data Identification sign indicating numbers; Add 33H by byte, " N1N2Nn " is n the data of returning, " CS " be frame check with; From start-of-frame begin before the check code all bytes and mould 256, " 16H " is the frame end symbol;
It is characterized in that receiving " 901F " instruction that acquisition terminal is sent for electric energy meter; Electric energy meter returns to the acquisition terminal Frame; Acquisition terminal reads the data of " L " and front earlier, and judges that according to the size of " L " electric energy meter is three rate scales or four rate scales, and the method for judgement is:
If L=12H, then electric energy meter is three rate scales;
If L=16H, then electric energy meter is four rate scales;
Subsequently, acquisition terminal is according to its judgement for three rate scales or four rate scales, and corresponding setting is carried out the different acquisition form of three rate scales or four rate scales for " L " follow-up data, thereby correctly resolves the electric energy data that returns.
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| CN102752019B (en) * | 2011-04-20 | 2015-01-28 | 深圳盒子支付信息技术有限公司 | Data sending, receiving and transmitting method and system based on headset jack |
| CN103778772B (en) * | 2014-01-23 | 2014-11-05 | 国家电网公司 | Framing and interconnection transmitting method in electricity utilization information collecting system |
| CN104992545A (en) * | 2015-07-08 | 2015-10-21 | 中国科学院声学研究所北海研究站 | Underwater detection relay platform system |
| CN106557381B (en) * | 2015-09-30 | 2019-11-15 | 阿里巴巴集团控股有限公司 | The method of calibration and device of multi-ladder Fee Schedule |
| CN105486918B (en) * | 2016-01-18 | 2018-11-09 | 广东美的暖通设备有限公司 | Electric quantity managing method and system |
| CN109448256B (en) * | 2018-11-30 | 2021-05-11 | 宁波三星智能电气有限公司 | Method for activating a reserve rate of an electrical consumer |
| CN114819020B (en) * | 2022-06-24 | 2022-10-21 | 南京致远物联有限公司 | Multi-platform data fusion remote ammeter installation assistant system and use method thereof |
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