CN201662886U - Wideband/narrowband integrated meter reading concentrator - Google Patents
Wideband/narrowband integrated meter reading concentrator Download PDFInfo
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- CN201662886U CN201662886U CN2009203512839U CN200920351283U CN201662886U CN 201662886 U CN201662886 U CN 201662886U CN 2009203512839 U CN2009203512839 U CN 2009203512839U CN 200920351283 U CN200920351283 U CN 200920351283U CN 201662886 U CN201662886 U CN 201662886U
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- power line
- carrier communication
- line carrier
- communication module
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Abstract
The utility model relates to a wideband/narrowband integrated meter reading concentrator, which comprises a main control part, a wideband power line carrier communication module, a narrowband power line carrier communication module, a meter reading RS485 interface, an infrared interface, a debugging USB interface, an uplink UART interface, a local RS232 interface, and so on. The wideband power line carrier communication module is connected with the main control part through a downlink Ethernet, and the narrowband power line carrier communication module is connected with the main control part through a downlink communication module UART interface. Compared with the common meter reading concentrator, the wideband/narrowband integrated meter reading concentrator provided by the utility model takes full use of the original power lines on a building structure, and can simultaneously read electric energy meters which are installed in a centralized way or non-centralized way. By adopting the equipment, the complexity of the meter reading system is reduced and the commonality thereof is improved.
Description
[technical field]
The utility model relates to a kind of meter-copy collector, refers in particular to a kind of based on wide, the incorporate meter-copy collector of arrowband power line carrier communication.
[background technology]
In the meter-copy collector commonly used, main channel (up) generally adopts public telephone network (PSTN), (descending) employing Shielded Twisted Pair (485 bus) or broadband power line communication between concentrator and the collector.
When the power information collection is carried out in the old-fashioned sub-district that at electric energy meter is non-centralized installation, unlikely adopt the mode of concentrator-collector-electric energy meter that electric energy meter is copied and accepted management, but directly adopt the mode of concentrator-electric energy meter.The downlink communication mode can adopt RS485, yet this mode just inevitably needs to lay a RS485 bus, and this can be very difficult to bringing in the practical application, also increases construction cost simultaneously.Simultaneously, RS485 has following shortcoming: 1. construction installation work amount is big, and netting twine is subject to artificial destruction; 2. after circuit damaged, the trouble spot is easy-to-search not.3. be subject to thunderbolt and superpotential influence.
[summary of the invention]
The purpose of this utility model is to have overcome above-mentioned defective, provide a kind of function more complete, can make full use of the meter-copy collector that line of electric force communicates transmission.
For solving the problems of the technologies described above, the utility model comprises: main control part, broadband power line carrier communication module, arrowband Power Line Carrier Communication Module, the RS485 interface of checking meter, infrared interface, debugging USB interface, up UART interface and local RS232 interface etc., the broadband power line carrier communication module is connected with main control part by descending Ethernet, and arrowband power line communication carrier communication module is connected with main control part by downlink communication module UART interface.
Below the utility model is described in further detail: main control part is made up of master cpu central controller and a FPGA field programmable gate array, requirement according to system, except that the existing interface that the CPU central controller provides self, also need to expand an above serial ports, and an above GPIO be used for realizing LCM interface, SPI interface, button and other input output IO interface, carry out the interface expansion by the scheme of the plug-in a slice FPGA field programmable gate array of LPC interface;
In the said structure, broadband/arrowband Power Line Carrier Communication Module all comprises coupled circuit, filtering circuit, programmable amplifier, power line carrier communication CPU central controller, wherein power line carrier communication CPU central controller by programmable amplifier and filtering circuit be coupled to line of electric force after coupled circuit links to each other, broadband connections can coexist on line of electric force with narrow band communication and be that their employed frequency bands are different;
In the said structure, described filtering circuit is a bandpass filter, and for the broadband power line carrier communication, cutoff frequency is 1-34MHz; For the arrowband power line carrier communication, cutoff frequency is 10K-500KHz.
Its improvements of the utility model are: can copy and accept management to it at the mode of the employing concentrator-collector-electric energy meter of the centralized installation of electric energy meter; Simultaneously can copy and accept management to it at the mode of the direct employing concentrator-electric energy meter (carrier wave meter adopts the arrowband power line communication) of the non-centralized installation of electric energy meter.Than common meter-copy collector, the beneficial effects of the utility model are that it has made full use of original electric power cable in the building structure, and can copy and accept management to the electric energy meter of centralized installation or non-centralized installation simultaneously.After adopting this equipment, the complicacy of kilowatt meter reading-out system is reduced, versatility improves.
[description of drawings]
Below in conjunction with drawings and Examples the utility model is described further;
Fig. 1 is a structural principle block diagram of the present utility model;
Fig. 2 is the utility model equipment principle block diagram;
Fig. 3 is the CPU central controller part and the interface synoptic diagram thereof of the utility model main control part;
Fig. 4 is the FPGA field programmable gate array part and the interface synoptic diagram thereof of the utility model main control part;
Fig. 5 changes descending Ethernet interface synoptic diagram for the MII0 of the utility model main control part CPU central controller;
Fig. 6 changes up Ethernet interface synoptic diagram for the MII1 of the utility model main control part CPU central controller;
Fig. 7 is the LCD screen interface synoptic diagram of the utility model main control part FPGA field programmable gate array expansion;
Fig. 8 is the utility model RS485 interface synoptic diagram of checking meter/safeguard;
Fig. 9 is the utility model LED light, key circuit synoptic diagram;
Figure 10 is the utility model infrared interface, local RS232 interface and up UART interface circuit synoptic diagram:
Figure 11 is that the utility model broadband power line communication CPU central controller and MII change Ethernet interface synoptic diagram;
Figure 12 is AFE (analog front end), reception and the transtation mission circuit synoptic diagram of the utility model broadband power line communication;
Figure 13 is the reception/transmission commutation circuit synoptic diagram of the utility model broadband power line communication;
Figure 14 is analog front-end chip U4, transmitting terminal filtering circuit U2 and Linear Driving circuit U 1 synoptic diagram of the utility model arrowband power line carrier communication;
Figure 15 is the utility model arrowband power line carrier communication CPU central controller synoptic diagram;
Figure 16 is the utility model arrowband power line communication network diagram that accepts filter;
Figure 17 is the utility model arrowband power line communication coupler circuit synoptic diagram.
[embodiment]
As shown in Figure 1, concentrator comprises: main control part 1, broadband power line carrier communication module 6, arrowband Power Line Carrier Communication Module 2, the RS485 interface 73 of checking meter, infrared interface 72, debugging USB interface 32, up UART interface 33 and local RS232 interface 43 etc., broadband power line carrier communication module 6 is connected with main control part 1 by descending Ethernet42, and arrowband power line communication carrier communication module 2 is connected with main control part 1 by downlink communication module UART interface 41.Main control part 1 is made up of master cpu central controller 11 and a FPGA field programmable gate array 12, requirement according to system, except that the existing interface that CPU central controller 11 provides self, also need to expand the serial ports more than 5, and GPIO more than 40 be used for realizing LCM interface, SPI interface, button 71 and other input output IO interface, carry out the interface expansion by the scheme of the plug-in a slice FPGA field programmable gate array of LPC interface.
As shown in Figure 2, broadband/arrowband Power Line Carrier Communication Module all comprises coupled circuit 26, filtering circuit 23, programmable amplifier 22, power line carrier communication CPU central controller 21.Wherein power line carrier communication CPU central controller 21 by programmable amplifier 22 and filtering circuit 23 be coupled to line of electric force after coupled circuit 26 links to each other, broadband connections can coexist on line of electric force with narrow band communication and be that their employed frequency bands are different, filtering circuit 23 is a bandpass filter, for the broadband power line carrier communication, cutoff frequency is 1-34MHz, for the arrowband power line carrier communication, cutoff frequency is 10K-500KHz.
Referring to Fig. 3 to Figure 17 is the related circuit theory diagrams of the utility model specific embodiment.
Figure 3 shows that the CPU central controller U1 of meter-copy collector mainboard main control part and each class interface synoptic diagram of drawing thereof.Wherein MII0, MII1 interface connect up ETHERNET and descending ETHERNET respectively, and the LPC interface connects the FPGA field programmable gate array, and the LED interface connects the LED lamp.
Figure 4 shows that the spread F PGA field programmable gate array U30 of meter-copy collector mainboard main control part and each class interface synoptic diagram of drawing thereof.The FPGA field programmable gate array is connected with the CPU central controller by lpc bus, and interface clock is taken from the PCICLK=33MHz of CPU central controller, and the interface reset signal is the PCIRST of CPU central controller.Concrete pin is connected to 18,19,20,22,23,24,25,153,159 of CPU central controller and connects 98,94,93,90,80,84,86,85,89 of FPGA field programmable gate array respectively.
Figure 5 shows that MII0 changes descending Ethernet interface synoptic diagram.The MII0 interface pin 123,124,125,126,129,130,131,132,127,128,122,134,135,136,137 of CPU central controller U1 connects with 21,20,19,18,6,5,4,3,16,7,22,2,1,26,25 of U9 chip respectively.31,30 are the input of Ethernet difference, and 34,33 are the output of Ethernet difference.
Figure 6 shows that MII1 changes up Ethernet interface synoptic diagram.The MII1 interface pin 140,141,142,143,146,147,148,149,144,145,139,150,151,136,137 of CPU central controller U1 connects with 21,20,19,18,6,5,4,3,16,7,22,2,1,26,25 of U2 chip respectively.31,30 are the input of Ethernet difference, and 34,33 are the output of Ethernet difference.
Figure 7 shows that the LCM interface synoptic diagram between FPGA field programmable gate array U30 and the LCD.56,57,73,72,71,70,65,64,62,61,60,59,78,83,77 of FPGA field programmable gate array connects 19,17,7,8,9,10,11,12,13,14,15,16,2,1,6 of LCD.
Shown in Figure 8, check meter RS485 and cascade RS485 interface synoptic diagram.See Fig. 4, the RS485_1 (10,15) and the RS485_2 (16,21) that come out from FPGA field programmable gate array (U30) are the UART interfaces of Transistor-Transistor Logic level, therefore will carry out interface conversion by Fig. 8.
Fig. 9 is LED light, key circuit synoptic diagram, and connected mode as shown in the figure.The ETH interface of CPU central controller in the ETH interface connection layout 3, the KEY interface of FPGA field programmable gate array in the KEY interface connection layout 4.
Figure 10 is infrared interface, local RS232 interface and up UART interface circuit synoptic diagram.Pin is connected to: 120,121 pins of CPU central controller connect 12,11 of U29 chip respectively.13,14 of U29 is the reception and the transmitting terminal of RS232 level, and concrete connected mode as shown in the figure.
Figure 11 is that broadband power line communication CPU central controller (UD1) part pin and MII interface change Ethernet interface synoptic diagram.CPU central controller UD1 chip transmitting terminal pin F1, G1 connects by the pin 6,5 that sends filter network and broadband analog front-end chip UA4 (seeing Figure 12); Chip receiving end pin A3, A1 connects by accept filter network and analog front- end chip pin 10,9.
Shown in Figure 12, this figure has comprised that broadband analog front-end chip UA4 and transmitting terminal drive amplifying circuit (broadband).1,2 pins of UA4 are that difference sends, and drive amplifying circuit (broadband) by transmitting terminal and are connected with transmission/reception commutation circuit of Figure 13, are coupled to line of electric force by signal coupler again and send; The signal of coming in from power line transmission wave network after filtration is incorporated into 27,28 pins of UA4.
Figure 13 is the transmission/reception commutation circuit of broadband power line communication, and connected mode as shown in the figure.TX among the figure, RX connect 30,29 pins of the UA4 chip of Figure 12, are used for control signal transmission/reception.
Figure 14 is analog front-end chip U4, transmitting terminal filtering circuit and the Linear Driving circuit of arrowband power line carrier communication.3,4,5,6,7 of this analog front-end chip is connected with 51,52,55,61,60 of Figure 15 arrowband power line carrier communication CPU central controller U3 respectively.
Figure 15 is an arrowband power line carrier communication CPU central controller synoptic diagram.Arrowband power line carrier communication CPU central controller is connected with the analog front-end chip U4 of arrowband power line carrier communication, specifically connects as Figure 14 explanation
Figure 16 is (arrowband) network that accepts filter.Introduce the network that accepts filter from the signal that signal coupler comes out, pass through the analog front-end chip U4 of the laggard capable arrowband of filtering power line carrier communication again.
Figure 17 is the signal coupling circuit synoptic diagram, and connected mode is seen shown in the figure.D1_OUT_B is connected D1_OUT_B and the D2_OUT_B of Figure 15 with D2_OUT_B.
Claims (4)
1. the integrated meter-copy collector of wide and narrow strip is characterized in that: it comprises that mainly main control part (1), broadband power line carrier communication module (6), arrowband Power Line Carrier Communication Module (2), the RS485 interface (73) of checking meter, infrared interface (72), debugging are with USB interface (32), up UART interface (33) and local RS232 interface (43); Broadband power line carrier communication module (6) is connected with main control part (1) by descending Ethernet (42), and arrowband power line communication carrier communication module (2) is connected with main control part (1) by downlink communication module UART interface (41).
2. the integrated meter-copy collector of wide and narrow strip according to claim 1, it is characterized in that: main control part (1) is made up of a master cpu central controller (11) and a FPGA field programmable gate array (12), also comprise the serial ports more than 5, and the GPIO more than 40, master cpu central controller (11) carries out the interface expansion by the scheme of the plug-in a slice FPGA field programmable gate array of LPC interface.
3. the integrated meter-copy collector of wide and narrow strip according to claim 1, it is characterized in that: described broadband/arrowband Power Line Carrier Communication Module all comprises coupled circuit (26), filtering circuit (23), programmable amplifier (22), power line carrier communication CPU central controller (21), wherein power line carrier communication CPU central controller (21) by programmable amplifier (22) and filtering circuit (23) be coupled to line of electric force (27) after coupled circuit (26) links to each other, broadband connections can coexist on line of electric force with narrow band communication and be that their employed frequency bands are different.
4. the integrated meter-copy collector of wide and narrow strip according to claim 3, it is characterized in that: described filtering circuit (23) is bandpass filter, for the broadband power line carrier communication, cutoff frequency is 1-34MHz, for the arrowband power line carrier communication, cutoff frequency is 10K-500KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203512839U CN201662886U (en) | 2009-12-29 | 2009-12-29 | Wideband/narrowband integrated meter reading concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203512839U CN201662886U (en) | 2009-12-29 | 2009-12-29 | Wideband/narrowband integrated meter reading concentrator |
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| CN201662886U true CN201662886U (en) | 2010-12-01 |
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| CN2009203512839U Expired - Lifetime CN201662886U (en) | 2009-12-29 | 2009-12-29 | Wideband/narrowband integrated meter reading concentrator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655422A (en) * | 2011-03-02 | 2012-09-05 | 华北电力科学研究院有限责任公司 | Test system for low-voltage power carrier communication equipment |
| CN103607218A (en) * | 2013-10-28 | 2014-02-26 | 国家电网公司 | Cross-frequency-band power-line carrier communication system and communication method thereof |
| CN105680908A (en) * | 2016-03-17 | 2016-06-15 | 瑞斯康微电子（深圳）有限公司 | Full frequency band power line carrier communication method |
| CN106781358A (en) * | 2016-11-24 | 2017-05-31 | 国电南瑞科技股份有限公司 | A kind of modularization AMI concentrators |
| CN107633667A (en) * | 2017-09-26 | 2018-01-26 | 北京长兴富华电力科技有限公司 | Power-line carrier communication method and system based on distribution route |
| CN108806224A (en) * | 2018-08-09 | 2018-11-13 | 浙江八达电子仪表有限公司 | Concentrator based on bandwidth carrier communication |
-
2009
- 2009-12-29 CN CN2009203512839U patent/CN201662886U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655422A (en) * | 2011-03-02 | 2012-09-05 | 华北电力科学研究院有限责任公司 | Test system for low-voltage power carrier communication equipment |
| CN102655422B (en) * | 2011-03-02 | 2014-01-01 | 华北电力科学研究院有限责任公司 | Test system for low-voltage power carrier communication equipment |
| CN103607218A (en) * | 2013-10-28 | 2014-02-26 | 国家电网公司 | Cross-frequency-band power-line carrier communication system and communication method thereof |
| CN103607218B (en) * | 2013-10-28 | 2016-04-20 | 国家电网公司 | A kind of across frequency band power-line carrier communication system and communication means thereof |
| CN105680908A (en) * | 2016-03-17 | 2016-06-15 | 瑞斯康微电子（深圳）有限公司 | Full frequency band power line carrier communication method |
| WO2017156837A1 (en) * | 2016-03-17 | 2017-09-21 | 瑞斯康微电子（深圳）有限公司 | Full-band power line carrier communication method |
| CN105680908B (en) * | 2016-03-17 | 2018-08-07 | 瑞斯康微电子（深圳）有限公司 | A kind of Whole frequency band power-line carrier communication method |
| CN106781358A (en) * | 2016-11-24 | 2017-05-31 | 国电南瑞科技股份有限公司 | A kind of modularization AMI concentrators |
| CN107633667A (en) * | 2017-09-26 | 2018-01-26 | 北京长兴富华电力科技有限公司 | Power-line carrier communication method and system based on distribution route |
| CN108806224A (en) * | 2018-08-09 | 2018-11-13 | 浙江八达电子仪表有限公司 | Concentrator based on bandwidth carrier communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENYANG POWER SUPPLY COMPANY OF LIAONING ELECTRIC |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Yongbin Inventor after: Ou Qinghai Inventor after: Liu Donglian Inventor after: Wang Yingnan Inventor after: Liu Chengxuan Inventor after: Ren Zhe Inventor before: Liu Donglian |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU DONGLIAN TO: YU YONGBIN OU QINGHAI LIU DONGLIAN WANG YINGNAN LIU CHENGXUAN REN ZHE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101213 Address after: 518000 Guangdong, Shenzhen, Futian District, Shennan Road, Southern China Electric Power Mansion, 10 floor Co-patentee after: Liaoning Shenyang Electric Power Supply Co., Ltd. Patentee after: China Gridcom Co., Ltd. Address before: 518000 Guangdong, Shenzhen, Futian District, Shennan Road, Southern China Electric Power Mansion, 10 floor Patentee before: China Gridcom Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101201 |