CN203689678U - 485 transfer wave meter reader - Google Patents
485 transfer wave meter reader Download PDFInfo
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- CN203689678U CN203689678U CN201420074063.7U CN201420074063U CN203689678U CN 203689678 U CN203689678 U CN 203689678U CN 201420074063 U CN201420074063 U CN 201420074063U CN 203689678 U CN203689678 U CN 203689678U
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- meter reader
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Abstract
The utility model relates to a 485 transfer wave meter reader which is connected between a load management terminal and a data acquiring terminal. The 485 transfer wave meter reader comprises an S485 interface, a PLCI38 (Physical Layer Control Interface 38) chip and an MUC (Microcontroller) unit. A meter reading method adopts the 485 transfer wave meter reader as well as a data acquirer and the load management terminal with carrier wave functions, wherein the 485 transfer wave meter reader is connected with the data acquirer through a low-voltage power line. The 485 transfer wave meter reader provided by the utility model has the beneficial effects that on one hand, equipment investment is reduced, the investment on installation of the 485 transfer wave meter reader for power acquisition is only 1/10 of the investment on additional installation of the load management terminal, moreover, no expense on GPRS/CDMA (General Packet Radio Service/Code Division Multiple Access) wireless channels is paid, and the mounting mode is simple, rapid and convenient; on the other hand, the operation maintenance workload is reduced, and the 485 transfer wave meter reader is simple in hardware, stable in transmission, reliable in communication and can reduce a great deal of operation maintenance workload.
Description
Technical field
The utility model relates to a kind of 485 and reprints ripple meter-copy device, it is the protocol converter that a kind of RS485 reprints ripple that this kind 485 reprinted ripple meter-copy device, is specially adapted to electric power enterprise to disperseing the collection of the electric energy meter meter energy information with RS485 communication interface of installing.
Background technology
Current, electric power enterprise is being carried forward vigorously the construction of power information acquisition system, promotes intelligent electric meter, electric energy acquisition device or the concentrator installed based on power line carrier, PLC mode in public power distribution station, realizes the electric power meter robotization of checking meter.But for the submeter having, turn for table high pressure specially become user, at present its master meter, submeter, turn or the ammeter without carrier communication function that adopt main for electric energy meter, the additional load management terminal of installing does not have power line carrier, PLC module yet, therefore fails to realize well the robotization of checking meter.
Traditional settling mode of such user's submeter power information collection is: 1, by laying 485 communication lines, by submeter, turn for table with RS485 communication mode, energy data is pooled to load management terminal, then by load management terminal with GPRS/CDMA wireless public network communication mode by remote data be transferred to power information gather main website; 2, before each submeter, install additional one independently acquisition terminal (as: load management terminal, meter-copy collector) realize electrical energy data acquiring, realized the remote transmission of corresponding submeter ammeter data by acquisition terminal.
Not only economic input is huge for above-mentioned two kinds of modes, has also increased a large amount of maintenance works, and reliability does not usually reach requirement yet.
Utility model content
In order to overcome the deficiencies in the prior art, a kind of 485 reprinting ripple meter-copy devices of the collection that is applicable to the electric energy meter meter energy information with RS485 communication interface of electric power enterprise to dispersion installation are provided.
For achieving the above object, the utility model provides a kind of 485 to reprint ripple meter-copy device, and low pressure carrier wave connection, between load management terminal and data acquisition end, is characterized in that: comprise RS485 interface, PLCI38 chip, MUC micro-control unit;
The meter reading instruction data message that RS485 interface sends for receiving load management terminal, and the energy data information being converted to by MUC micro-control unit is fed back to load management terminal;
PLCI38 chip is used for power carrier signal coupling to be loaded into line of electric force, and receives the energy data that data acquisition end is passed back;
MUC control module is converted to power carrier signal for the meter reading instruction data message that load management terminal is sent, and the power carrier signal that data acquisition end is passed back and energy data carry out agreement exchange, this MUC control module is to receiving and the data of conversion are stored.
Further, also comprise infrared interface and pilot lamp.
Further, RS485 interface, PLCI38 chip, MUC micro-control unit adopt totally-enclosed encapsulation.
Further, the FLASH that MUC micro-control unit has a built-in 4K is as the program space, built-in 368Byte-RAM and have 1 serial port.
From above-mentioned to description of the present utility model, the beneficial effect of 485 reprinting ripple meter-copy devices of the utility model confession is as follows: the one, reduce equipment investment, take single submeter as example, it is to install 1/10 of load management terminal input additional that installation 485 reprinting ripple meter-copy devices are realized electric quantity acquisition, and without paying GPRS/CDMA radio channel expense, mounting means simple and fast; The 2nd, reduce O&M workload, 485 reprinting ripple meter-copy device hardware are simple, and transmission is stable, and reliable communications, can reduce a large amount of O&M work.
Accompanying drawing explanation
Fig. 1 is that the utility model 485 is reprinted ripple meter-copy device hardware principle block diagram.
Fig. 2 is the application structure schematic diagram that the utility model 485 is reprinted ripple meter-copy device meter register method.
Embodiment
Below by embodiment, the utility model will be further described.
Shown in Fig. 1, a kind of 485 reprint ripple meter-copy device, by low pressure carrier wave connection between load management terminal and data acquisition end, comprise RS485 interface 1, PLCI38 chip 2, MUC micro-control unit 3, infrared interface 4 and pilot lamp 5, above-mentioned RS485 interface 1, PLCI38 chip 2, MUC micro-control unit 3, infrared interface 4 and pilot lamp 5 adopt totally-enclosed encapsulation;
The meter reading instruction data message that RS485 interface 1 sends for receiving load management terminal, and the energy data information being converted to by MUC micro-control unit 3 is fed back to load management terminal, this RS485 interface is selected the SN65LBC184D of TI company, its inner integrated transient voltage resists, simultaneously to exceeding the (+30kV contact discharge of bus termination esd protection; + 15kV bubble-discharge; + 15 manikins), can bear peak value is 400W overvoltage transition, the message transmission rate in electrical noise environment is 250kbps, open failure protection receiver design, 1/4 unit load allows 128 devices to be connected to bus, and heat is closed protection, the low maximum 300 μ A of working current that forbid;
PLCI38 chip 2 is for being loaded into line of electric force by power carrier signal coupling, and receive the energy data that data acquisition end is passed back, this PLCI38 selects PLCI38-IV chip, its strong anti-interference ability, can bear the static discharge, high-level efficiency forward error correction, the rationally efficient compression algorithm that reach 4000V, farthest compressed packet, to improve ability to communicate and stability;
MUC control module 3 is converted to power carrier signal for the meter reading instruction data message that load management terminal is sent, and the power carrier signal that data acquisition end is passed back and energy data carry out agreement exchange, this MUC control module is stored the data that receive and change, this MUC control module selects MCU choosing to adopt the 8BIT position STM8S103F2 of ST, this MCU has the FLASH of built-in 4K as the program space, built-in 368Byte-RAM, inner house dog, has 1 serial port.
Shown in Fig. 1, Fig. 2, the meter register method of above-mentioned 485 reprinting ripple meter-copy devices is as follows, comprise 485 reprinting ripple meter-copy devices 100, data acquisition unit and load management terminal 300 with carrier wave function, described 485 reprint ripple meter-copy device 100 is connected by low-voltage power line 400 with data acquisition unit 200, wherein data acquisition unit comprises the electric energy meter 210 of built-in carrier module and state is housed 485 ammeters 230 of netting II type collector 220, adopts DLT645-2007 multifunction electric meter communication protocol between load management terminal 300 and data acquisition unit.
Shown in Fig. 1, Fig. 2, the working routine of above-mentioned 485 carrier meter reading devices and meter register method is as follows:
By install 485 reprinting ripple meter-copy devices additional at original load management terminal, carry out data acquisition with regard to the electric energy meter that can realize disperseing, in figure in 1 except external 485 reprint ripples and copy device, all the other equipment are that electric power enterprise has been installed and at the equipment of fortune;
While checking meter, load management terminal 300 will copy reading meter reading instruction data message be converted to power carrier signal coupling by 485 reprinting ripple meter-copy devices 100 and be loaded on low-voltage power line 400, the electric energy meter 210 of following built-in carrier module receives after meter reading instruction by low-voltage power line with 485 ammeters 220 that state net II type collector is housed, by energy data again in power line carrier communication mode to load management terminal responsive feedback, last 485 reprint ripple meter-copy device receives the power carrier signal of data acquisition unit feedback and carries out protocol conversion, energy data is passed to load management terminal, complete the communication process of once checking meter.
Load management terminal is passed to main website by GPRS/CDMA radio channel or wired passage by energy data, complete whole data acquisition, 485 reprint ripple meter-copy devices at the scene in long-time running test, stable equipment operation, data acquisition success ratio reaches 100%, gets a desired effect.
Above are only an embodiment of the present utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection domain.
Claims (4)
1. 485 reprint a ripple meter-copy device, be connected between load management terminal and data acquisition end, it is characterized in that: comprise RS485 interface, PLCI38 chip, MUC micro-control unit;
The meter reading instruction data message that RS485 interface sends for receiving load management terminal, and the energy data information being converted to by MUC micro-control unit is fed back to load management terminal;
PLCI38 chip is used for power carrier signal coupling to be loaded into line of electric force, and receives the energy data that data acquisition end is passed back;
MUC control module is converted to power carrier signal for the meter reading instruction data message that load management terminal is sent, and the power carrier signal that data acquisition end is passed back and energy data carry out agreement exchange, this MUC control module is to receiving and the data of conversion are stored.
2. according to claim 1 485 reprint ripple meter-copy device, it is characterized in that: also comprise infrared interface and pilot lamp.
3. according to claim 1 and 2 485 reprint ripple meter-copy device, it is characterized in that: described RS485 interface, PLCI38 chip, MUC micro-control unit adopt totally-enclosed encapsulation.
4. according to claim 3 485 reprint ripple meter-copy devices, it is characterized in that: the FLASH that described MUC micro-control unit has a built-in 4K is as the program space, built-in 368Byte-RAM and have 1 serial port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074063.7U CN203689678U (en) | 2014-02-20 | 2014-02-20 | 485 transfer wave meter reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420074063.7U CN203689678U (en) | 2014-02-20 | 2014-02-20 | 485 transfer wave meter reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203689678U true CN203689678U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420074063.7U Expired - Fee Related CN203689678U (en) | 2014-02-20 | 2014-02-20 | 485 transfer wave meter reader |
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| Country | Link |
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| CN (1) | CN203689678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103839399A (en) * | 2014-02-20 | 2014-06-04 | 国家电网公司 | 485 conversion carrier wave meter reading device and meter reading method |
-
2014
- 2014-02-20 CN CN201420074063.7U patent/CN203689678U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103839399A (en) * | 2014-02-20 | 2014-06-04 | 国家电网公司 | 485 conversion carrier wave meter reading device and meter reading method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 |
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| CF01 | Termination of patent right due to non-payment of annual fee |