CN107786672A - Support the ammeter data acquisition terminal of DLMS/COSEM agreements - Google Patents
Support the ammeter data acquisition terminal of DLMS/COSEM agreements Download PDFInfo
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- CN107786672A CN107786672A CN201711144203.8A CN201711144203A CN107786672A CN 107786672 A CN107786672 A CN 107786672A CN 201711144203 A CN201711144203 A CN 201711144203A CN 107786672 A CN107786672 A CN 107786672A
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- dlms
- cosem
- acquisition terminal
- data acquisition
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- 230000006854 communication Effects 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 19
- 230000001052 transient effect Effects 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000011664 signaling Effects 0.000 claims description 7
- 230000003993 interaction Effects 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
Abstract
The present invention relates to a kind of ammeter data acquisition terminal for supporting DLMS/COSEM agreements, embedded LINUX system, including power module and mainboard, described mainboard includes core board, serial communication modular, described core board includes CPU, described CPU is built-in with the meter-reading module for supporting DLMS/COSEM agreements, and described serial communication modular is provided with the automatic transceiving circuits of RS 485 and GPRS uploading modules.The master control core CPU disposal ability of the present invention is stronger, and applicable message stipulations are more, and on-site installation and maintenance are more convenient；It is extended on the basis of the present invention, can supports to gather while water, electricity and gas hotlist；The automatic transceiving circuits of RS 485 of the present invention can save I/O space, control the transmitting-receiving of 485 chips to change without individually increase program, while increase Transient Suppression Diode and PTC to protect 485 chips not impacted by outside big voltage high-current；Ammeter data acquisition terminal has good Man Machine Interface, is easy to the installation and maintenance at scene.
Description
Technical field
The invention belongs to the power information acquisition technique field of intelligent grid, and in particular to one kind supports DLMS/COSEM associations
The ammeter data acquisition terminal of view.
Background technology
Power information acquisition terminal (electric energy data acquire terminal) is slaves to intelligent electricity
Net power information acquisition system, the also referred to as equipment to the collection of each information gathering point power information, ammeter data acquisition terminal, can
To realize the collection of electric energy meter data, data management, data double-way transmission and forwarding or perform control command.Ammeter data is adopted
Collection terminal is divided into special transformer acquisition terminal, centralized automatic meter-reading terminal (including concentrator, collector), distributed energy by application places and supervised
The types such as control terminal.Ammeter data acquisition terminal of the present invention is centralized automatic meter-reading terminal.
The protocol massages specification that overseas ammeter acquisition terminal uses for DLMS/COSEM, be different from the country commonly use it is multi-functional
Electric energy meter communication protocol (DL/T 645-2007 and DL/T 645-1997 stipulations).DLMS/COSEM agreements should at multinational scene
With it has outstanding interoperability and scalability.In order that ammeter data acquisition terminal possesses bigger market and general
Property, domestic ammeter data acquisition terminal is necessary to support more meter reading agreements including DLMS/COSEM.
In addition, existing ammeter data acquisition terminal, generally all controls the transmitting-receiving of 485 chips to turn with single program
Change, and 485 chips are easily impacted by outside big voltage high-current.
The content of the invention
To overcome the shortcomings of that existing ammeter data acquisition terminal compatibility is not high, protocol extension is poor, the present invention is based on
Flush type LINUX technology, there is provided a kind of that overseas DLMS/COSEM agreements, the ammeter data of domestic ammeter agreement can be supported to adopt simultaneously
Collect terminal, improve RS485 transmission circuits to realize the automatic transceiving of RS485 data, add and support DLMS/COSEM agreements
Synchronous acquisition of the meter-reading module in terms of supporting overseas ammeter and water, electricity and gas hotlist, make acquisition terminal that there is outstanding mutual behaviour
The property made and scalability.
The technical solution adopted in the present invention is as follows：
Support the ammeter data acquisition terminal of DLMS/COSEM agreements, embedded LINUX system, including power module and master
Plate, described mainboard include core board, serial communication modular, and described core board includes CPU, and described CPU is built-in with support
The meter-reading module of DLMS/COSEM agreements, described serial communication modular is provided with RS-485 automatic transceivings circuit and GPRS is uploaded
Module.
Ammeter data acquisition terminal utilizes RS- by the meter-reading module of support DLMS/COSEM agreements built-in in CPU
The ammeter data of DLMS/COSEM agreements is supported in 485 automatic transceiving circuit timing copy readings, and the data of copy reading are parsed, located
Reason, storage, regularly by GPRS uploading modules by the status data information of ammeter data acquisition terminal itself and the electricity of copy reading
Table data are uploaded to main website.
Preferably, described RS-485 automatic transceiving circuits are provided with signaling conversion circuit and protection circuit.Described letter
The circuit structure of number change-over circuit is：Send signal TXD and triode Q1 base stages are accessed by resistance R30,5V power supplys pass through resistance
R29 is connected with triode Q1 colelctor electrodes, and 485 transceiving chips are connected with triode Q1 colelctor electrodes, triode Q1 grounded emitters；Institute
The circuit structure for the protection circuit stated is：485 chip U2 output AB sides, 5V, R31 are pulled upward to by R28 respectively and pull down to ground, AB
Pin is connected to ground by transient state killer tube TVS2, TVS3 respectively, passes through the TVS1 connections of transient state killer tube between AB.
In RS-485 automatic transceiving circuits, the data for needing to send are transferred to core board into signaling conversion circuit and TXD is sent out
Send pin, send data by the way that the mode of operations of 485 chips can be switched after signaling conversion circuit, controlled without individually increase program
The transmitting-receiving conversion of 485 chips is made, saves I/O space；Increase protection circuit newly outside the AB pins of 485 chips, protect chip not by outer
The impact of the big voltage of portion's high current.
Preferably, described core board mainly includes electric power management circuit, NAND Flash, SDRAM.Electric power management circuit
According to the presence situation and acquisition terminal communication state of external power supply, acquisition terminal is set to enter low power consumpting state and effectively respectively
Manage the power supply of GPRS uploading modules, Liquid Crystal Module etc..NAND Flash are used to store operation program, data of core board etc.；
SDRAM is used to preserve the various important parameters of terminal and historical data.
Preferably, described mainboard includes human-computer interaction module, described human-computer interaction module include liquid crystal display, button,
Indicator lamp.Acquisition terminal is shown oneself state data message, measurement point data message by liquid crystal display, is entered by button
Row page turning, selection and on-line debugging, indicator lamp can be with the working conditions of real-time display ammeter data acquisition terminal.
Preferably, described mainboard includes network interface, I/O mouths, spi bus, I2C buses.User can pass through network interface and USB
Interface carries out on-site maintenance to ammeter data acquisition terminal.
Preferably, described power module is provided with carrier module.The different isolation signals of power module output two-way, it is
Core board, mainboard, Liquid Crystal Module, GPRS uploading modules etc. provide power supply.Acquisition terminal obtains the ac signal of supply side, can
Realize AC sampling and detection function；According to the difference of application scenarios, acquisition terminal can also pass through carrier module and electric energy meter
Communication, copy reading electric energy meter data message and logout etc..
Beneficial effects of the present invention：
1) master control core CPU disposal ability of the invention is stronger, and applicable message stipulations are more, and on-site installation and maintenance are more just
Victory, contribute to the ammeter data of complex application context in power industry (such as overseas DLMS ammeters and domestic agreement ammeter are used with) remote
Journey automatic data collection.
2) it is extended on the basis of the present invention, can supports to gather while water, electricity and gas hotlist, contribute to future architecture
The popularization of middle multiple-in-one.
3) RS-485 automatic transceivings circuit of the invention can save I/O space, and 485 cores are controlled without individually increase program
The transmitting-receiving conversion of piece, while increase Transient Suppression Diode and PTC to protect 485 chips not rushed by outside big voltage high-current
Hit.
4) ammeter data acquisition terminal has good Man Machine Interface, is easy to the installation and maintenance at scene.
Brief description of the drawings：
Fig. 1 is the system architecture schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural representation of the embodiment of the present invention；
Fig. 3 is the circuit diagram of the RS-485 automatic transceiving circuits of the present invention；
Fig. 4 is the circuit structure diagram of the RS-485 automatic transceiving circuits of the present invention.
Embodiment
Below in conjunction with the accompanying drawings, embodiments of the present invention are illustrated.
As shown in figure 1, being the system architecture schematic diagram of the present invention, including main station system passes through GPRS phases with main station system
Ammeter data acquisition terminal even, the electricity being connected with ammeter data acquisition terminal by RS-485 interfaces or power line carrier module
Can table.The electric energy meter data of DLMS/COSEM agreements are supported in ammeter data acquisition terminal timing copy reading, and the data of copy reading are carried out
Parsing, processing, storage, regularly by GPRS uploading modules by the status data information of ammeter data acquisition terminal itself and copy reading
Ammeter data be uploaded to main website.
As shown in Fig. 2 it is the structural representation of the present invention.The ammeter data acquisition terminal of DLMS/COSEM agreements is supported,
Embedded LINUX system, including power module and mainboard, described mainboard include core board, serial communication modular, described core
Plate includes CPU, electric power management circuit, NAND Flash, SDRAM, and the ARM chip conducts of atmel corp are used in the present embodiment
Master cpu, embedded LINUX system, described CPU are built-in with the meter-reading module for supporting DLMS/COSEM agreements, described serial ports
Communication module is provided with RS-485 automatic transceivings circuit and GPRS uploading modules.
As shown in figure 3, described RS-485 automatic transceiving circuits are provided with signaling conversion circuit and protection circuit.Such as Fig. 4
Shown, the circuit structure of described signaling conversion circuit is：Send signal TXD and triode Q1 base stages, 5V are accessed by resistance R30
Power supply is connected by resistance R29 with triode Q1 colelctor electrodes, and 485 transceiving chips are connected with triode Q1 colelctor electrodes, triode Q1
Grounded emitter；The circuit structure of described protection circuit is：485 chip U2 outputs AB sides, respectively by R28 be pulled upward to 5V,
R31 pulls down to ground, and AB pins are connected to ground by transient state killer tube TVS2, TVS3 respectively, pass through transient state killer tube between AB
TVS1 connections.
Described mainboard includes human-computer interaction module, and described human-computer interaction module includes liquid crystal display, button, indicator lamp.
Described mainboard includes network interface, I/O mouths, spi bus, I2C buses.Described power module is provided with carrier module.Core board
Have with other functional module communication modes of mainboard：Spi bus, I2C buses and serial ports etc., interface is arranged on mainboard.
In the present embodiment, by the RS-485 automatic transceivings circuit after improvement to the support DLMS/COSEM agreements of connection
Meter reading and unscrambling data frame algorithm are divided into three layer model by electric energy meter copy reading, the meter-reading module of acquisition terminal, are respectively：Application layer
(Application Layer), data link layer (Data Link Layer) and physical layer (Physical Layer).Collection
Terminal communicates with electric energy meter uses Client-Server structures, and request of data end is Client, and data provide end (electric energy meter) and are
Server.Ammeter data acquisition terminal gather and upload electric energy meter data process it is as follows：
1) physical layer connection is established：Physical layer is located at the bottom of Communication Model, and DLMS/COSEM agreements build on a variety of
On physical layer, the effect of physical layer is mainly the operation to bottom communication hardware, PSTN MODEM initialization, plays open and close
Close.
2) link layer connection is established：After physical layer link is established, the first step of data communication is to establish the company of link layer
Connect, link layer is mainly responsible for the reliability of data transfer, including the verification of address check, frame length, data CRC check, long data frame
Unpack group and bag and to provide the service of link transmission to application layer.
3) application layer connection is established：After link layer connection is established, application layer company is also established in DLMS/COSEM agreements
Connect, can just carry out data communication, this process is referred to as Negotiation, it is intended to provide some configuration parameters for data communication, apply
Layer connection request is initiated by Client ends, and Client ends send AARQ frames, Server ends response AARE frames.
4) data communication is carried out.
5) data communication terminates, and discharges link, releases connection.
6) physical layer connection is released.
The algorithm of whole communication process realizes the meter reading mould by the support DLMS/COSEM agreements being built on core board
Block is realized.
In addition, the DLMS/COSEM consensus standards that the present invention uses introduce object identity system (OBIS), this system area
Not in the Data Identification system (Data ID) of State Grid Corporation of China, solve the collision problem of the identification code of different type meter,
Enough mark supports are provided by copy reading simultaneously for various meters, redundancy is higher.All data in electric energy meter can be included,
Including measured value and abstract data, a unified, unique identification code is all provided, in IEC62056-61 standard documents
In, the full list and naming rule of these identification codes are given, each manufacturer can be the electric energy meter data of oneself according to OBIS
Construct identification code.OBIS codes be one by six number code characters into assembly coding (A, B, C, D, E, F), A defines to be identified
Data item, B is used to define channel number, and C defines the abstract or physical data item related to information source, and D is for defining class
Type or which kind of Processing Algorithm, specially treateds of the E to above a few component classes, F are used for the number for defining the different charge cycle of A-E marks
According to storage.The data of electric energy meter corresponding to part identifer code are as shown in the table：
| A | B | C | D | E | F | Function |
| 0 | 0 | 61 | 61 | 0 | ff | Error message |
| 0 | 0 | 1 | 0 | 0 | ff | Clock |
| 0 | 0 | 0d | 0 | 0 | ff | Effective calendar |
| 0 | 0 | 0b | 0 | 0 | ff | Special day table |
| 0 | 0 | 14 | 0 | 0 | ff | IEC optical port parameters |
| A | B | C | D | E | F | Function |
| 0 | 0 | 14 | 0 | 1 | ff | IEC power port parameters |
| 0 | 0 | 16 | 0 | 0 | ff | IECHDLC parameters -- passage 0 |
| A | B | C | D | E | F | Function |
| 0 | 1 | 16 | 0 | 0 | ff | IECHDLC parameters -- passage 1 |
| 0 | 0 | 28 | 0 | 0 | ff | SN connecting objects |
| 0 | 0 | 29 | 0 | 0 | ff | SAP distribution objects |
| 1 | 0 | 63 | 62 | 0 | ff | Event log -- it is electrically related |
| 1 | 0 | 63 | 1 | 0 | ff | Load curve -- the cycle |
| 0 | 0 | 62 | 1 | 0 | 7e | Event log -- it is general |
| 1 | 1 | 1 | 8 | 1 | ff | Positive active energy --- rate 1 |
| 1 | 1 | 1 | 8 | 2 | ff | Positive active energy --- rate 2 |
| 1 | 1 | 1 | 8 | 3 | ff | Positive active energy --- rate 3 |
| 1 | 1 | 1 | 8 | 4 | ff | Positive active energy --- rate 4 |
| 1 | 1 | 2 | 8 | 1 | ff | Reverse active energy --- rate 1 |
| 1 | 1 | 2 | 8 | 2 | ff | Reverse active energy --- rate 2 |
| 1 | 1 | 2 | 8 | 3 | ff | Reverse active energy --- rate 3 |
| 1 | 1 | 2 | 8 | 4 | ff | Reverse active energy --- rate 4 |
Claims (7)
1. the ammeter data acquisition terminal of DLMS/COSEM agreements is supported, embedded LINUX system, including power module and mainboard,
It is characterized in that：
Described mainboard includes core board, serial communication modular, and described core board includes CPU, and described CPU is built-in with support
The meter-reading module of DLMS/COSEM agreements, described serial communication modular is provided with RS-485 automatic transceivings circuit and GPRS is uploaded
Module.
2. the ammeter data acquisition terminal of support DLMS/COSEM agreements according to claim 1, it is characterised in that described
RS-485 automatic transceiving circuits be provided with signaling conversion circuit and protection circuit.
3. the ammeter data acquisition terminal of support DLMS/COSEM agreements according to claim 2, it is characterised in that described
The circuit structure of signaling conversion circuit be：Send signal TXD and triode Q1 base stages are accessed by resistance R30,5V power supplys pass through
Resistance R29 is connected with triode Q1 colelctor electrodes, and 485 transceiving chips are connected with triode Q1 colelctor electrodes, and triode Q1 emitter stages connect
Ground；
The circuit structure of described protection circuit is：485 chip U2 output AB sides, are pulled upward to 5V, R31 drop-down by R28 respectively
To ground, AB pins are connected to ground by transient state killer tube TVS2, TVS3 respectively, pass through the TVS1 connections of transient state killer tube between AB.
4. the ammeter data acquisition terminal of the support DLMS/COSEM agreements according to claim any one of 1-3, its feature
It is, described core board includes electric power management circuit, NANDFlash, SDRAM.
5. the ammeter data acquisition terminal of the support DLMS/COSEM agreements according to claim any one of 1-3, its feature
It is, described mainboard includes human-computer interaction module, and described human-computer interaction module includes liquid crystal display, button, indicator lamp.
6. the ammeter data acquisition terminal of the support DLMS/COSEM agreements according to claim any one of 1-3, its feature
It is, described mainboard includes network interface, I/O mouths, spi bus, I2C buses.
7. the ammeter data acquisition terminal of the support DLMS/COSEM agreements according to claim any one of 1-3, its feature
It is, described power module is provided with carrier module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144203.8A CN107786672A (en) | 2017-11-16 | 2017-11-16 | Support the ammeter data acquisition terminal of DLMS/COSEM agreements |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144203.8A CN107786672A (en) | 2017-11-16 | 2017-11-16 | Support the ammeter data acquisition terminal of DLMS/COSEM agreements |
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| CN107786672A true CN107786672A (en) | 2018-03-09 |
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| CN201711144203.8A Pending CN107786672A (en) | 2017-11-16 | 2017-11-16 | Support the ammeter data acquisition terminal of DLMS/COSEM agreements |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109285258A (en) * | 2018-11-07 | 2019-01-29 | 郑州华力信息技术有限公司 | A kind of blue-teeth data retransmission unit with voice broadcast function |
| WO2022247089A1 (en) * | 2021-05-24 | 2022-12-01 | 苏州大学 | Smart electricity meter terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022247089A1 (en) * | 2021-05-24 | 2022-12-01 | 苏州大学 | Smart electricity meter terminal |
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