CN203827341U - Low-voltage electric power carrier wave communication circuit - Google Patents
Low-voltage electric power carrier wave communication circuit Download PDFInfo
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- CN203827341U CN203827341U CN201420056724.3U CN201420056724U CN203827341U CN 203827341 U CN203827341 U CN 203827341U CN 201420056724 U CN201420056724 U CN 201420056724U CN 203827341 U CN203827341 U CN 203827341U
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Abstract
The utility model utility model discloses a low-voltage electric power carrier wave communication circuit, comprising a reception signal filtering module and an emission signal amplification module. The low-voltage electric power carrier wave communication circuit also comprises a coupling module connected with the reception signal filtering module and the emission signal amplification module. The coupling module is at least connected with a ground wire and a center wire. The reception signal filtering module is used for filtering reception signals. The emission signal amplification module is used for outputting amplified emission signals which has been filtered. The coupling module is used for enabling the reception signal filtering module to cooperate with the ground wire and the center wire, and transmitting the filtered reception signal to the ground wire and the center wire; enabling the emission signal amplification module to cooperate with the ground wire and the center wire, and transmitting the amplified and filtered emission signal to emission signal amplification module. According to the low-voltage electric power carrier wave communication circuit provided by the utility model, the carrier signal is carried between the center wire and the ground wire, and success rate of meter reading is increased.
Description
Technical field
The utility model relates to carrier communication field, particularly a kind of low voltage electric power carrier communication circuit.
Background technology
Centralized automatic meter-reading technology is widely applied in the real work of Utilities Electric Co..The communication mode of concentrator and ammeter is varied: wired RS485 mode, small wireless, power carrier etc., especially electric power carrier communication technology, owing to using the own power circuit of Utilities Electric Co. generally to be approved.In the electric energy meter bid of State Grid Corporation of China's recent years, the standardization of low-voltage power carrier communication module.
In low voltage electric power carrier communication, carrier signal is to be all added between phase line and center line at present.Owing to there being a large amount of electrical equipment in phase line, and the service time of electric equipment is unpredictable, and electric equipment is of a great variety, produces various humorous wave interference and pollutes electrical network, thereby make phase line and neutral wire impedance extremely unstable and seriously polluted.State Grid Corporation of China, Southern Power Grid Company to the solution of this problem are at present: improve transmitting power, check meter at dead of night, monthly can copy back a secondary data.Even if like this, As time goes on, the increase of grid equipment, the success rate of checking meter is more and more lower.Some Utilities Electric Co.s, using Meter Reading System in Power Line Carrier Wave after 3 years, can only copy and accept the data of 50% left and right ammeter.
Utility model content
The utility model embodiment provides a kind of low voltage electric power carrier communication circuit, is added between center line and ground wire to realize carrier signal, has improved the success rate of checking meter.
The utility model embodiment provides a kind of low voltage electric power carrier communication circuit, comprise receive signal filtering module, amplification module transmits, described low voltage electric power carrier communication circuit also comprise with described reception signal filtering module, described in the coupling module that amplification module is connected that transmits, described coupling module is at least connected with ground wire and center line;
Described reception signal filtering module is for carrying out to received signal filtering;
The described amplification module that transmits is for exporting the transmitting of filtering of amplification;
Described coupling module is used for making described reception signal filtering module and described ground wire, center line to closely cooperate, described in transmission the reception signal of filtering to described ground wire, center line, transmit described in making amplification module and described ground wire, center line closely cooperates, and amplified described in transmission and transmitting to the described amplification module that transmits of filtering.
From above-mentioned the utility model embodiment, due to by reception signal filtering module is connected with coupling module with the amplification module that transmits, coupling module is connected with ground wire, center line, realizing carrier signal is added between center line and ground wire, between center line and ground wire, there is no electric equipment, also just there is no electrical equipment interference signal, it is farther that carrier signal can be transmitted between center line and ground wire, thereby improved the success rate of checking meter.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the theory diagram of a kind of low voltage electric power carrier communication circuit the first embodiment of the utility model;
Fig. 2 is the theory diagram of a kind of low voltage electric power carrier communication circuit the second embodiment of the utility model;
Fig. 3 is the circuit diagram of a kind of low voltage electric power carrier communication circuit of the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
The theory diagram of a kind of low voltage electric power carrier communication circuit of the utility model, referring to Fig. 1, low voltage electric power carrier communication circuit comprises reception signal filtering module 01, amplification module 02 transmits, described low voltage electric power carrier communication circuit also comprise with described reception signal filtering module 01, described in the coupling module 03 that amplification module 02 is connected that transmits, described coupling module 03 is at least connected with ground wire and center line; Described reception signal filtering module 01 is for carrying out to received signal filtering; The described amplification module 02 that transmits is for exporting the transmitting of filtering of amplification; Described coupling module 03 is for closely cooperating described reception signal filtering module 01 and described ground wire, center line, described in transmission the reception signal of filtering to described ground wire, center line, transmit described in making amplification module 02 and described ground wire, center line closely cooperates, and amplified described in transmission and transmitting to the described amplification module 02 that transmits of filtering.
Referring to Fig. 1, described coupling module 03 is at least connected to ground wire and center line: 03 of described coupling module is connected with ground wire and center line.Carrier signal is added between center line and ground wire, to send the acknowledgement command of checking meter.
Referring to Fig. 2, described coupling module 03 is at least connected to ground wire and center line: described coupling module 03 is connected with phase line, ground wire and center line; Described coupling module 03 also comprises relay 031, and described relay 031 selects to be only connected with phase line, center line for coupling module 03 or coupling module 03 is selected to be only connected with center line, ground wire.Carrier signal, according to the selection of relay 031, both can be added between center line and ground wire, also can be added between phase line and center line, to send the acknowledgement command of checking meter.
Referring to Fig. 3, described coupling module 03 comprises resistance R V1, resistance R V2, capacitor C 1, transformer T1, transient voltage suppressor F1, relay K 1, relay drive circuit; Resistance R V1 one end is connected with resistance R V2 one end, transformer T1 the 3rd pin and center line respectively; The resistance R V1 other end is connected with phase line and relay K 1 the 4th pin respectively; The resistance R V2 other end is connected with ground wire and relay K 1 the 5th pin respectively; Capacitor C 1 one end is connected with relay K 1 the 1st pin; Capacitor C 1 other end is connected with transformer T1 the 1st pin; Transformer T1 the 5th pin is connected with transient voltage suppressor F1 one end and coupling module the first input/output terminal respectively; Transformer T1 the 6th pin is connected with the transient voltage suppressor F1 other end, power cathode and coupling module the second input/output terminal respectively; Relay K 1 the 2nd pin is connected with relay drive circuit one end; Relay K 1 the 3rd pin is connected with the relay drive circuit other end.
Described transient voltage suppressor F1 model is P6KE22CA.
Described relay drive circuit comprises single-chip microcomputer, and Single-chip Controlling relay sends the acknowledgement command of checking meter in turn on phase line, center line and center line, ground wire.
Described reception signal filtering module 01 comprises resistance R 3, inductance L 1, inductance L 2, capacitor C 2, voltage-stabiliser tube VD1, voltage-stabiliser tube VD2; Resistance R 3 one end are connected with reception signal filtering module the first output; Resistance R 3 other ends are connected with inductance L 1 one end; Inductance L 1 other end is connected with capacitor C 2 one end; Inductance L 2 one end are connected with capacitor C 2 other ends, voltage-stabiliser tube VD1 positive pole, voltage-stabiliser tube VD2 negative pole and reception signal filtering module first input end respectively; Inductance L 2 other ends are connected with reception signal filtering module the second output, voltage-stabiliser tube VD1 negative pole, voltage-stabiliser tube VD2 positive pole, power cathode and reception signal filtering module the second input respectively.
Described voltage-stabiliser tube VD1 and voltage-stabiliser tube VD2 model are IN4679.
The described amplification module 02 that transmits comprises p raceway groove and n raceway groove double-field effect pipe V1, triode V2, voltage-stabiliser tube TS1, inductance L 3, capacitor C 4, capacitor C 8, capacitor C 9, capacitor C 10, resistance R 2, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9; P raceway groove is connected with power cathode with n raceway groove double-field effect pipe V1 the 1st pin; P raceway groove is connected with resistance R 6 one end and capacitor C 8 one end respectively with n raceway groove double-field effect pipe V1 the 2nd pin; P raceway groove is connected with resistance R 5 one end, voltage-stabiliser tube TS1 negative pole, resistance R 7 one end, capacitor C 9 one end, capacitor C 10 positive poles and triode V2 collector electrode respectively with n raceway groove double-field effect pipe V1 the 4th pin; P raceway groove is connected with resistance R 5 other ends, voltage-stabiliser tube TS1 positive pole and capacitor C 8 other ends respectively with n raceway groove double-field effect pipe V1 the 5th pin; P raceway groove is connected with resistance R 4 one end with n raceway groove double-field effect pipe V1 the 3rd pin; P raceway groove is connected with resistance R 2 one end with n raceway groove double-field effect pipe V1 the 6th pin; Triode V2 base stage is connected with resistance R 8 one end and resistance R 9 one end respectively; Triode V2 emitter is connected with resistance R 9 other ends and positive source respectively; Inductance L 3 one end are connected with capacitor C 4; Inductance L 3 other ends are connected with resistance R 2 other ends and resistance R 4 other ends respectively; Capacitor C 4 other ends are connected with the amplification module input that transmits; Capacitor C 9 other ends are connected with resistance R 7 other ends, capacitor C 10 negative poles, resistance R 8 other ends and power cathode respectively; Resistance R 6 other ends are connected with the amplification module output that transmits.
Described p raceway groove and n raceway groove double-field effect pipe V1 model are US6M2.
Described voltage-stabiliser tube TS1 model is SS12.
The low voltage electric power carrier communication circuit that the utility model provides is by being connected with the amplification module that transmits reception signal filtering module with coupling module, coupling module is connected with ground wire, center line, realizing carrier signal is added between center line and ground wire, owing to there is no electric equipment between center line and ground wire, just there is no electrical equipment interference signal yet, it is farther that carrier signal can be transmitted between center line and ground wire, thereby improved the success rate of checking meter.
Above-mentioned the utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. a low voltage electric power carrier communication circuit, comprise receive signal filtering module, amplification module transmits, it is characterized in that, described low voltage electric power carrier communication circuit also comprise with described reception signal filtering module, described in transmit and amplify the coupling module that is connected of mould, described coupling module is at least connected with ground wire and center line;
Described reception signal filtering module is for carrying out to received signal filtering;
The described amplification module that transmits is for exporting the transmitting of filtering of amplification;
Described coupling module is used for making described reception signal filtering module and described ground wire, center line to closely cooperate, described in transmission the reception signal of filtering to described ground wire, center line, transmit described in making amplification module and described ground wire, center line closely cooperates, and amplified described in transmission and transmitting to the described amplification module that transmits of filtering.
2. low voltage electric power carrier communication circuit according to claim 1, is characterized in that, described coupling module is at least connected to ground wire and center line: described coupling module is only connected with ground wire and center line.
3. low voltage electric power carrier communication circuit according to claim 1, is characterized in that, described coupling module is at least connected to ground wire and center line: described coupling module is connected with phase line, ground wire and center line;
Described coupling module also comprises relay, and described relay selects to be only connected with phase line, center line for coupling module or coupling module is selected to be only connected with center line, ground wire.
4. low voltage electric power carrier communication circuit according to claim 1, is characterized in that, described coupling module comprises resistance R V1, resistance R V2, capacitor C 1, transformer T1, transient voltage suppressor F1, relay K 1, relay drive circuit; Resistance R V1 one end is connected with resistance R V2 one end, transformer T1 the 3rd pin and center line respectively; The resistance R V1 other end is connected with phase line and relay K 1 the 4th pin respectively; The resistance R V2 other end is connected with ground wire and relay K 1 the 5th pin respectively; Capacitor C 1 one end is connected with relay K 1 the 1st pin; Capacitor C 1 other end is connected with transformer T1 the 1st pin; Transformer T1 the 5th pin is connected with transient voltage suppressor F1 one end and coupling module the first input/output terminal respectively; Transformer T1 the 6th pin is connected with the transient voltage suppressor F1 other end, power cathode and coupling module the second input/output terminal respectively; Relay K 1 the 2nd pin is connected with relay drive circuit one end; Relay K 1 the 3rd pin is connected with the relay drive circuit other end.
5. low voltage electric power carrier communication circuit according to claim 4, is characterized in that, described transient voltage suppressor F1 model is P6KE22CA.
6. low voltage electric power carrier communication circuit according to claim 1, is characterized in that, described reception signal filtering module comprises resistance R 3, inductance L 1, inductance L 2, capacitor C 2, voltage-stabiliser tube VD1, voltage-stabiliser tube VD2; Resistance R 3 one end are connected with reception signal filtering module the first output; Resistance R 3 other ends are connected with inductance L 1 one end; Inductance L 1 other end is connected with capacitor C 2 one end; Inductance L 2 one end are connected with capacitor C 2 other ends, voltage-stabiliser tube VD1 positive pole, voltage-stabiliser tube VD2 negative pole and reception signal filtering module first input end respectively; Inductance L 2 other ends are connected with reception signal filtering module the second output, voltage-stabiliser tube VD1 negative pole, voltage-stabiliser tube VD2 positive pole, power cathode and reception signal filtering module the second input respectively.
7. low voltage electric power carrier communication circuit according to claim 6, is characterized in that, described voltage-stabiliser tube VD1 and voltage-stabiliser tube VD2 model are IN4679.
8. low voltage electric power carrier communication circuit according to claim 1, it is characterized in that, described in the amplification module that transmits comprise p raceway groove and n raceway groove double-field effect pipe V1, triode V2, voltage-stabiliser tube TS1, inductance L 3, capacitor C 4, capacitor C 8, capacitor C 9, capacitor C 10, resistance R 2, resistance R 4, resistance R 5, resistance R 6, resistance R 7, resistance R 8, resistance R 9; P raceway groove is connected with power cathode with n raceway groove double-field effect pipe V1 the 1st pin; P raceway groove is connected with resistance R 6 one end and capacitor C 8 one end respectively with n raceway groove double-field effect pipe V1 the 2nd pin; P raceway groove is connected with resistance R 5 one end, voltage-stabiliser tube TS1 negative pole, resistance R 7 one end, capacitor C 9 one end, capacitor C 10 positive poles and triode V2 collector electrode respectively with n raceway groove double-field effect pipe V1 the 4th pin; P raceway groove is connected with resistance R 5 other ends, voltage-stabiliser tube TS1 positive pole and capacitor C 8 other ends respectively with n raceway groove double-field effect pipe V1 the 5th pin; P raceway groove is connected with resistance R 4 one end with n raceway groove double-field effect pipe V1 the 3rd pin; P raceway groove is connected with resistance R 2 one end with n raceway groove double-field effect pipe V1 the 6th pin; Triode V2 base stage is connected with resistance R 8 one end and resistance R 9 one end respectively; Triode V2 emitter is connected with resistance R 9 other ends and positive source respectively; Inductance L 3 one end are connected with capacitor C 4; Inductance L 3 other ends are connected with resistance R 2 other ends and resistance R 4 other ends respectively; Capacitor C 4 other ends are connected with the amplification module input that transmits; Capacitor C 9 other ends are connected with resistance R 7 other ends, capacitor C 10 negative poles, resistance R 8 other ends and power cathode respectively; Resistance R 6 other ends are connected with the amplification module output that transmits.
9. low voltage electric power carrier communication circuit according to claim 8, is characterized in that, described p raceway groove and n raceway groove double-field effect pipe V1 model are US6M2.
10. low voltage electric power carrier communication circuit according to claim 8, is characterized in that, described voltage-stabiliser tube TS1 model is SS12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056724.3U CN203827341U (en) | 2014-01-29 | 2014-01-29 | Low-voltage electric power carrier wave communication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056724.3U CN203827341U (en) | 2014-01-29 | 2014-01-29 | Low-voltage electric power carrier wave communication circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203827341U true CN203827341U (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420056724.3U Expired - Fee Related CN203827341U (en) | 2014-01-29 | 2014-01-29 | Low-voltage electric power carrier wave communication circuit |
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| Country | Link |
|---|---|
| CN (1) | CN203827341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579429A (en) * | 2014-12-25 | 2015-04-29 | 厦门格绿能光电股份有限公司 | Power line carrier communication module |
| CN105141281A (en) * | 2015-08-05 | 2015-12-09 | 成都君禾天成科技有限公司 | Receiving filtering circuit employing power carrier communication |
-
2014
- 2014-01-29 CN CN201420056724.3U patent/CN203827341U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579429A (en) * | 2014-12-25 | 2015-04-29 | 厦门格绿能光电股份有限公司 | Power line carrier communication module |
| CN105141281A (en) * | 2015-08-05 | 2015-12-09 | 成都君禾天成科技有限公司 | Receiving filtering circuit employing power carrier communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20180129 |