CN202495936U - OFDM electric power line carrier communication device based on RS485 electric energy meter - Google Patents
OFDM electric power line carrier communication device based on RS485 electric energy meter Download PDFInfo
- Publication number
- CN202495936U CN202495936U CN2012201299125U CN201220129912U CN202495936U CN 202495936 U CN202495936 U CN 202495936U CN 2012201299125 U CN2012201299125 U CN 2012201299125U CN 201220129912 U CN201220129912 U CN 201220129912U CN 202495936 U CN202495936 U CN 202495936U
- Authority
- CN
- China
- Prior art keywords
- power line
- electric energy
- energy meter
- phase carrier
- carrier module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Abstract
The utility model relates to an OFDM electric power line carrier communication device based on a RS485 electric energy meter. The device is connected with a low voltage electric power line. The device comprises a three-phase carrier module, a concentrator, a single-phase carrier module, a carrier collector and the RS485 electric energy meter. The three-phase carrier module and the single-phase carrier module are connected with the low voltage electric power line. The concentrator is connected with the three-phase carrier module through UART. The carrier collector is connected with the single-phase carrier module through UART. The RS485 electric energy meter is connected with the carrier collector. The concentrator is connected with a host computer through GPRS. Compared with the prior art, the OFDM electric power line carrier communication device based on the RS485 electric energy meter provided by the utility model has the advantages of simple structure, good performance and the like.
Description
Technical field
The utility model relates to a kind of device for power line carrier communications, especially relates to a kind of OFDM device for power line carrier communications based on the RS485 electric energy meter.
Background technology
Along with the popularization that Every household has an ammeter works of system of State Grid; And the modern needs of management of power supply and power utilization; Traditional hand is checked meter, handheld terminal is checked meter, the vehicular radio meter reading method is incompatible, and increasing automatic automatic meter reading system has got into the practical stage.These kilowatt meter reading-out system high efficiency, electric quantity metering is accurate, and the supervision and the management function of many electricity consumptions can also be provided.
Automatically the meter reading method of automatic meter reading system have that 485 buses are checked meter, carrier meter reading etc., and the simplest mode is a carrier meter reading, it need increase the network rebuilding and follow-up expense hardly.But power line is the electric energy frequently of going up for transmission 50Hz, rather than lays for communication, thus its characteristic often difficulty directly satisfy the requirement of carrier communication.Be limited by the very big restriction of power line network interference and attenuation characteristic; Power-line carrier communication is always not fully up to expectations, and OFDM (OFDM) modulation technique is applied in the low pressure field of checking meter to realizing anti-interference efficiently modulation technique and improving band efficiency and opened up a new path.The application of OFDM modulation technique can be traced back to twentieth century sixties, is mainly used in military high frequency communication system, and also once being considered is applied to high speed modem.
Summary of the invention
The purpose of the utility model is exactly for the defective that overcomes above-mentioned prior art existence the OFDM device for power line carrier communications based on the RS485 electric energy meter that a kind of system configuration is simple, performance is good to be provided.
The purpose of the utility model can realize through following technical scheme:
A kind of OFDM device for power line carrier communications based on the RS485 electric energy meter; This device is connected with low-voltage power line; This device comprises three-phase carrier module, concentrator, single-phase carrier module, carrier acquisition device and RS485 electric energy meter; Described three-phase carrier module all is connected with low-voltage power line with single-phase carrier module, and described concentrator is connected with the three-phase carrier module through UART, and described carrier acquisition device is connected with single-phase carrier module through UART; Described RS485 electric energy meter is connected with the carrier acquisition device, and described concentrator is connected to host computer through GPRS.
Described single-phase carrier module is provided with a plurality of, and each single-phase carrier module connects a carrier acquisition device respectively.
Described carrier acquisition device connects a plurality of RS485 electric energy meters.
Compared with prior art, the utility model adopts the OFDM orthogonal frequency division multiplexi, and simple in structure, antijamming capability is strong, and traffic data transmission rate is high.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of OFDM device for power line carrier communications based on the RS485 electric energy meter; This device is connected with low-voltage power line 1, and this device comprises three-phase carrier module 2, concentrator 4, single-phase carrier module 3, carrier acquisition device 5 and RS485 electric energy meter 6, and three-phase carrier module 2 all is connected with low-voltage power line 1 with single-phase carrier module 3; Concentrator 4 is connected with three-phase carrier module 2 through UART; Carrier acquisition device 5 is connected with single-phase carrier module 3 through UART, and RS485 electric energy meter 6 is connected with carrier acquisition device 5, and concentrator 4 is connected to host computer 7 through GPRS.
Wherein, single-phase carrier module 3 is provided with a plurality of, and each single-phase carrier module 3 connects a carrier acquisition device 5 respectively, and each carrier acquisition device 5 can connect a plurality of RS485 electric energy meters 6 according to the scale of user power utilization.
RS485 electric energy meter 6 recording user electricity consumption data; The data that carrier acquisition device 5 is gathered connected a plurality of RS485 electric energy meters 6; Data are transferred to three-phase carrier module 2 through single-phase carrier module 3 and low-voltage power line 1; Three-phase carrier module 2 is given concentrator 4 with transfer of data, and concentrator 4 is preserved data, and data are transferred to host computer 7 through GPRS.
Claims (3)
1. OFDM device for power line carrier communications based on the RS485 electric energy meter; This device is connected with low-voltage power line; It is characterized in that this device comprises three-phase carrier module, concentrator, single-phase carrier module, carrier acquisition device and RS485 electric energy meter, described three-phase carrier module all is connected with low-voltage power line with single-phase carrier module; Described concentrator is connected with the three-phase carrier module through UART; Described carrier acquisition device is connected with single-phase carrier module through UART, and described RS485 electric energy meter is connected with the carrier acquisition device, and described concentrator is connected to host computer through GPRS.
2. a kind of OFDM device for power line carrier communications based on the RS485 electric energy meter according to claim 1 is characterized in that described single-phase carrier module is provided with a plurality of, and each single-phase carrier module connects a carrier acquisition device respectively.
3. a kind of OFDM device for power line carrier communications based on the RS485 electric energy meter according to claim 2 is characterized in that described carrier acquisition device connects a plurality of RS485 electric energy meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201299125U CN202495936U (en) | 2012-03-30 | 2012-03-30 | OFDM electric power line carrier communication device based on RS485 electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201299125U CN202495936U (en) | 2012-03-30 | 2012-03-30 | OFDM electric power line carrier communication device based on RS485 electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495936U true CN202495936U (en) | 2012-10-17 |
Family
ID=47002148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201299125U Expired - Lifetime CN202495936U (en) | 2012-03-30 | 2012-03-30 | OFDM electric power line carrier communication device based on RS485 electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495936U (en) |
-
2012
- 2012-03-30 CN CN2012201299125U patent/CN202495936U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206021536U (en) | It is applied to " unification of four tables " information acquisition system of newly-built community | |
| CN201170925Y (en) | Control system for centralized meter-reading of dweller remotely | |
| CN102495315A (en) | Method and system for split-phase line loss measurement | |
| CN103646523A (en) | Remote concentrated ammeter meter reading system | |
| CN107248271B (en) | Multi-master station acquisition system integrating multiple meters | |
| CN105070009A (en) | Public utility meter based data acquisition system and method | |
| CN202677607U (en) | Power line high-speed broadband carrier wave meter-reading system | |
| CN202495935U (en) | Electric power line carrier communication device based on RS485 electric energy meter | |
| CN201904652U (en) | Concentrator for power consumption information of users | |
| CN203606940U (en) | Electricity consumption information gathering system based on hybrid networking | |
| CN202495936U (en) | OFDM electric power line carrier communication device based on RS485 electric energy meter | |
| CN203761387U (en) | Low-voltage power line carrier communication circuit based on OFDM mode modulation | |
| CN203673645U (en) | Multi-channel acquisition meter reading system | |
| CN202838644U (en) | Intensive long-distance transmission device of power utilization data | |
| CN102708668B (en) | Heat metering information remote transmission system based on composite communication mode | |
| CN206021547U (en) | It is applied to " unification of four tables " information acquisition system of built Urban re-development | |
| CN202305659U (en) | Electric energy meter for metering multi-way new-energy grid-connected electrical quantity | |
| CN202422405U (en) | Power line carrier centralized meter reading system based on electric network topology for low-voltage users | |
| CN202584400U (en) | Intelligent carrier wireless comprehensive meter reading system | |
| CN204103937U (en) | Long-range direct collection formula customer information control system | |
| CN202524385U (en) | OFDM-based hybrid power line carrier communication device | |
| CN203606942U (en) | Remote concentrated meter reading system | |
| CN203630218U (en) | Intelligent electric meter based on plastic optical fiber communication | |
| CN202694559U (en) | Carrier concentrator | |
| CN203134109U (en) | Self-adaptive time division collecting carrier module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |
|
| CX01 | Expiry of patent term |