CN204615823U - A kind of power wire broadband carrier communication module - Google Patents
A kind of power wire broadband carrier communication module Download PDFInfo
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- CN204615823U CN204615823U CN201520326029.9U CN201520326029U CN204615823U CN 204615823 U CN204615823 U CN 204615823U CN 201520326029 U CN201520326029 U CN 201520326029U CN 204615823 U CN204615823 U CN 204615823U
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Abstract
The utility model discloses a kind of power wire broadband carrier communication module, comprise carrier Control circuit (10), carrier wave analog front circuit (11), carrier wave receiving circuit (12), carrier wave transtation mission circuit (13), carrier signal coupling circuit (14), power line interface (15) and serial communication interface (16).Carrier wave analog front circuit and carrier Control circuit separate by the utility model power wire broadband carrier communication module, easily realize single-point grounding, signal is farthest avoided mutually to disturb, therefore, operating frequency high (antijamming capability is strong), be with roomy (long transmission distance), low in energy consumption, and parallel checking meter can be realized, meter reading efficiency is promoted greatly.
Description
Technical field
The utility model relates to power-line carrier communication field, particularly relates to a kind of power wire broadband carrier communication module.
Background technology
Power line carrier communication is the communication of power system of the transmission medium taking transmission line as carrier signal, and power line carrier communication is divided into narrowband carrier communication to communicate with bandwidth carrier by available communication bandwidth, and has been widely used in carrier meter reading field.
Narrowband carrier communication belongs to single-carrier technology, and single carrier narrowband modulation technology mainly comprises FSK, BPSK, frequency hopping, direct sequence spread spectrum etc.The greatest drawback of single carrier narrowband modulation technology does not possess adaptive ability for time varying frequency Selective intensity and interference, thus on communication reliability, presents significant limitation.Bandwidth carrier communication belongs to multi-carrier modulation technology, and modulation system is OFDM.Because data message is modulated on multiple carrier wave by multi-carrier modulation technology, when certain frequency deep fading or disturbed time, under other frequencies may still be in good transmission conditions, thus still can be correctly received by complete data message of encoding after error correction, realize multicarrier parallel communications.OFDM multi-carrier modulation technology because of its outstanding anti-narrow-band noise performance, and is providing the great potential that high bandwidth possesses.
There is some carrier telecommunications adopting digitized multi-carrier frequency multiplexing technique in power line carrier market, existing Power Line Carrier Communication Module anti-clutter interference performance is poor, due to the signal attenuation of transmission line and the interference of clutter, cause current most of power line carrier communication apart from closer.
Utility model content
Main purpose of the present utility model is, for the deficiency that in above-mentioned prior art, anti-clutter interference performance is poor, transmission range is short, provides a kind of power wire broadband carrier communication module.
The utility model solves the technical scheme that its technical problem adopts: provide a kind of power wire broadband carrier communication module, comprise carrier Control circuit, the carrier wave analog front circuit be connected with carrier Control circuit, the carrier wave receiving circuit be connected with carrier wave analog front circuit for receiving first carrier signal, the carrier wave transtation mission circuit be connected with carrier wave analog front circuit for sending the second carrier signal, to be connected with carrier wave transtation mission circuit the carrier signal coupling circuit that signal is coupled with carrier wave receiving circuit, the power line interface be connected with carrier signal coupling circuit and power line, be connected with carrier Control circuit for carrying out with ammeter the serial communication interface that communicates.
Preferably, power wire broadband carrier communication module also comprises the zero cross detection circuit be connected for detecting power line zero crossing with carrier Control circuit and power line interface.
Preferably, carrier signal coupling circuit comprises signal transformer, amplitude limiter circuit, high pass filter, protective circuit.
Preferably, power wire broadband carrier communication module also comprises the memory be connected for storing data with carrier Control circuit.
In technique scheme, tool has the following advantages or beneficial effect: carrier wave analog front circuit and carrier Control circuit separate by the utility model power wire broadband carrier communication module, easily realize single-point grounding, signal is farthest avoided mutually to disturb, therefore, operating frequency high (antijamming capability is strong), be with roomy (long transmission distance), low in energy consumption, and parallel checking meter can be realized, meter reading efficiency is promoted greatly.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, obviously, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, in accompanying drawing:
Fig. 1 is the structural representation of the utility model power wire broadband carrier communication module first embodiment;
Fig. 2 is the structural representation of the utility model power wire broadband carrier communication module second embodiment;
Fig. 3 is the structural representation of the carrier signal coupling circuit of the utility model power wire broadband carrier communication module.
Embodiment
Clearly understand to make the purpose of this utility model, technical scheme and advantage, the various embodiments that hereafter will describe will with reference to corresponding accompanying drawing, these figures constitute a part for embodiment, which describe the various embodiments realizing the utility model and may adopt.Should understand, also can use other embodiment, or the amendment on 26S Proteasome Structure and Function is carried out to the embodiment enumerated herein, and scope of the present utility model and essence can not be departed from.
An embodiment of the utility model power wire broadband carrier communication module, as shown in Figure 1, comprise carrier Control circuit 10, the carrier wave analog front circuit 11 be connected with carrier Control circuit 10, the carrier wave receiving circuit 12 be connected with carrier wave analog front circuit 11 for receiving first carrier signal, the carrier wave transtation mission circuit 13 be connected with carrier wave analog front circuit 11 for sending the second carrier signal, to be connected with carrier wave transtation mission circuit 13 the carrier signal coupling circuit 14 that signal is coupled with carrier wave receiving circuit 12, the power line interface 15 be connected with carrier signal coupling circuit 14 and power line, be connected with carrier Control circuit 10 for carrying out with ammeter the serial communication interface 16 that communicates.
Concrete, carrier signal coupling circuit 14 receives from the carrier signal power line from power line interface 15 and obtains first carrier signal after being coupled, and by this first carrier Signal transmissions to carrier wave receiving circuit 12, carrier Control circuit 10 is transferred to after then carrying out analog by carrier wave analog front circuit 11, send to ammeter by serial communication interface 17 after carrier Control circuit 10 carries out modulation /demodulation, and then ordered by ammeter execution and obtain corresponding result and data accordingly.The process that ammeter sends to carrier wave analog front circuit 11 to carry out analog signal after execution result and data are sent to carrier Control circuit 10 modulation /demodulation by serial communication interface 16 obtains the second carrier signal, and send to carrier signal coupling circuit 14 by carrier wave transtation mission circuit 13, transferred on power line by power line interface 15 after overcoupling.
Carrier wave analog front circuit and carrier Control circuit separate by the utility model power wire broadband carrier communication module, easily realize single-point grounding, signal is farthest avoided mutually to disturb, therefore, operating frequency high (antijamming capability is strong), be with roomy (long transmission distance), low in energy consumption, and parallel checking meter can be realized, meter reading efficiency is promoted greatly.
Another embodiment of the utility model power wire broadband carrier communication module, as shown in Figure 2, comprise carrier Control circuit 10, the carrier wave analog front circuit 11 be connected with carrier Control circuit 10, the carrier wave receiving circuit 12 be connected with carrier wave analog front circuit 11 for receiving first carrier signal, the carrier wave transtation mission circuit 13 be connected with carrier wave analog front circuit 11 for sending the second carrier signal, to be connected with carrier wave transtation mission circuit 13 the carrier signal coupling circuit 14 that signal is coupled with carrier wave receiving circuit 12, the power line interface 15 be connected with carrier signal coupling circuit 14 and power line, be connected for carrying out with ammeter the serial communication interface 16 that communicates with carrier Control circuit 10, the zero cross detection circuit 17 be connected with carrier Control circuit 10 and power line interface 15 for detecting power line zero crossing, the memory 18 be connected with carrier Control circuit 10 for storing data.
Concrete, zero cross detection circuit 17 is for gathering the zero cross signal of 50Hz power line, thus the transmission of synchronous carrier signal and reception.Zero cross detection circuit 17 is exactly detect that power line sends level signal in the time of zero crossing, adopt the mode of light-coupled isolation, carrier Control circuit 10 and power line are isolated, prevent various interference on power line to the interference of carrier Control circuit 10 inside, improve stability and the reliability of carrier Control circuit.
In the present embodiment, when zero cross detection circuit 17 detects zero cross signal, transmission level signal is to carrier Control circuit 10, thus, carrier signal coupling circuit 14 receives from the carrier signal power line from power line interface 15 and obtains first carrier signal after being coupled, and by this first carrier Signal transmissions to carrier wave receiving circuit 12, carrier Control circuit 10 is transferred to after then carrying out analog by carrier wave analog front circuit 11, ammeter is sent to by serial communication interface 16 after carrier Control circuit 10 carries out modulation /demodulation, and then ordered by ammeter execution and obtain corresponding result and data accordingly.The process that ammeter sends to carrier wave analog front circuit 11 to carry out analog signal after execution result and data are sent to carrier Control circuit 10 modulation /demodulation by serial communication interface 16 obtains the second carrier signal, and send to carrier signal coupling circuit 14 by carrier wave transtation mission circuit 13, transferred on power line by power line interface 15 after overcoupling.
More specifically, the carrier signal coupling circuit 14 in embodiment 1 and 2, specifically comprises signal transformer 141, amplitude limiter circuit 142, high pass filter 143 and protective circuit 144.
Carrier signal coupling circuit 14 utilizes protective circuit 144 to stop entering of outside overvoltage signal; high pass filter 143 realizes the obstruct of power line 50Hz signal and broadband carrier signal can two-wayly be passed through; signal transformer 141, by carrier wave transtation mission circuit 13 and carrier wave receiving circuit 12 receiving and transmitting signal, achieves the complete physical isolation of power line and communication module inside.In the utility model power wire broadband carrier communication module, power line couples unit 14 has the function of protection and filtering, can support the multiple coupled modes such as straight cutting, capacitive coupling, inductance coupling high.
Carrier wave analog front circuit and carrier Control circuit separate by the utility model power wire broadband carrier communication module, easily realize single-point grounding, signal is farthest avoided mutually to disturb, therefore, operating frequency high (antijamming capability is strong), be with roomy (long transmission distance), low in energy consumption, and parallel checking meter can be realized, meter reading efficiency is promoted greatly.
The foregoing is only preferred embodiment of the present utility model, those skilled in the art know, when not departing from spirit and scope of the present utility model, can carry out various change or equivalent replacement to these characteristic sum embodiments.In addition, under instruction of the present utility model, can modify to adapt to concrete situation and material to these characteristic sum embodiments and spirit and scope of the present utility model can not be departed from.Therefore, the utility model is not by the restriction of specific embodiment disclosed herein, and the embodiment in the right of all the application of falling into all belongs to protection range of the present utility model.
Claims (4)
1. a power wire broadband carrier communication module, it is characterized in that, comprise carrier Control circuit (10), the carrier wave analog front circuit (11) be connected with described carrier Control circuit (10), the carrier wave receiving circuit (12) be connected with described carrier wave analog front circuit (11) for receiving first carrier signal, the carrier wave transtation mission circuit (13) be connected with described carrier wave analog front circuit (11) for sending the second carrier signal, to be connected with carrier wave transtation mission circuit (13) the carrier signal coupling circuit (14) that signal is coupled with described carrier wave receiving circuit (12), the power line interface (15) be connected with described carrier signal coupling circuit (14) and power line, be connected with described carrier Control circuit (10) for carrying out with ammeter the serial communication interface (16) that communicates.
2. power wire broadband carrier communication module according to claim 1, it is characterized in that, also comprise and being connected for the zero cross detection circuit (17) detecting power line zero crossing with described carrier Control circuit (10) and power line interface (15).
3. power wire broadband carrier communication module according to claim 2; it is characterized in that, described carrier signal coupling circuit (14) comprises signal transformer (141), amplitude limiter circuit (142), high pass filter (143), protective circuit (144).
4. power wire broadband carrier communication module according to claim 1, is characterized in that, also comprises and being connected for the memory (18) storing data with described carrier Control circuit (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326029.9U CN204615823U (en) | 2015-05-19 | 2015-05-19 | A kind of power wire broadband carrier communication module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520326029.9U CN204615823U (en) | 2015-05-19 | 2015-05-19 | A kind of power wire broadband carrier communication module |
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| CN204615823U true CN204615823U (en) | 2015-09-02 |
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| CN201520326029.9U Active CN204615823U (en) | 2015-05-19 | 2015-05-19 | A kind of power wire broadband carrier communication module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703802A (en) * | 2016-02-29 | 2016-06-22 | 中电装备山东电子有限公司 | Power line broadband carrier communication device |
| CN105788226A (en) * | 2016-03-17 | 2016-07-20 | 长沙瑞斯康通信技术有限公司 | Broadband carrier parallel meter reading method and broadband carrier parallel meter reading system |
| CN107517148A (en) * | 2017-10-12 | 2017-12-26 | 深圳零智创新科技有限公司 | Broadband power line and CAN converter |
-
2015
- 2015-05-19 CN CN201520326029.9U patent/CN204615823U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105703802A (en) * | 2016-02-29 | 2016-06-22 | 中电装备山东电子有限公司 | Power line broadband carrier communication device |
| CN105788226A (en) * | 2016-03-17 | 2016-07-20 | 长沙瑞斯康通信技术有限公司 | Broadband carrier parallel meter reading method and broadband carrier parallel meter reading system |
| CN107517148A (en) * | 2017-10-12 | 2017-12-26 | 深圳零智创新科技有限公司 | Broadband power line and CAN converter |
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Address after: 3rd Floor, Building 6, Guangqian Industrial Zone, Longzhu 3rd Road, Longzhu 3rd Road, Longguang Community, Taoyuan Street, Nanshan District, Shenzhen, Guangdong Province, 518000 Patentee after: SHENZHEN FRIENDCOM TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 518055 6th floor, building 17, Guangqian Industrial Zone, Taoyuan Street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN FRIENDCOM TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |