CN107733469A - A kind of power wire broadband carrier communication anti-jamming circuit - Google Patents
A kind of power wire broadband carrier communication anti-jamming circuit Download PDFInfo
- Publication number
- CN107733469A CN107733469A CN201711143326.XA CN201711143326A CN107733469A CN 107733469 A CN107733469 A CN 107733469A CN 201711143326 A CN201711143326 A CN 201711143326A CN 107733469 A CN107733469 A CN 107733469A
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- carrier communication
- transformer
- electric capacity
- power wire
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The present invention provides a kind of power wire broadband carrier communication anti-jamming circuit, and in the present invention, electric capacity C1 effect is logical high frequency, hinders low frequency, i.e. electric capacity C1 can allow the carrier signal of high frequency by and being blocked to 50 hertz of ac signal of low frequency；Transient suppressor D1 can absorb spike, shields；High frequency transformer T1, it is to isolate and transmit carrier signal that it, which is acted on,；Transient suppressor D2, it is the amplitude for reducing impulse disturbances that it, which is acted on,；Resistance R1, it is to maintain the less distortion of carrier communication waveform that it, which is acted on, by the mutual cooperation of each part, reaches preferable anti-jamming effectiveness, meanwhile, element used in the present invention is few, and reliability is high, and cost is low, and anti-jamming effectiveness is notable.
Description
Technical field
The invention belongs to carrier communication Anti-Jamming Technique field, and in particular to a kind of power wire broadband carrier communication is anti-interference
Circuit.
Background technology
Power wire broadband carrier communication is to utilize low-voltage power distribution wire（380/220V user's line）As information transfer matchmaker
It is situated between and carries out a kind of specific communication mode of voice or data transfer, the technology is that the high-frequency signal of carrying information is loaded on electricity
Stream, then using the power line transmission of various grades, the modem for receiving information separates high-frequency signal from electric current again
Out, and it is sent to broadband over power line user terminal（Computer, TV or telephone set and intelligent electric meter, switch, become platform）, the skill
Art realizes the multiple services carrying such as data, voice and video on the basis of rewiring is not needed on existing electric wire；
The characteristics of power wire broadband carrier communication maximum is to carry out signal transmission by the good low-voltage power line network of cloth, no
Needing to set up passage in addition, cost is very low, therefore has just obtained rapid popularization once release, power wire broadband carrier communication,
But power wire broadband carrier communication also has disadvantages that, for example it is at work, is easily influenceed by outer signals and noise,
The problem of especially antijamming capability is weak fails to be well solved always, such as, in the pulse charge of electric car, to carrier wave
Communication can cause very big interference, it could even be possible to causing communication failure.
The content of the invention
It is an object of the invention to provide a kind of power wire broadband carrier communication anti-jamming circuit, the circuit is by pulse
During interference, the amplitude of impulse disturbances can be limited, and can reduces the distortion of bandwidth carrier waveform.
In order to achieve the above object, used technical scheme of the invention is：
A kind of power wire broadband carrier communication anti-jamming circuit, including 220V AC powers, electric capacity C1, transformer T1, transition suppression
Device D1 processed, transient suppressor D2 and resistance R1, the electric capacity C1 are concatenated jointly after being connected with the input of the transformer T1
At the both ends of 220V AC powers, the input of the transformer T1 is in parallel with the transient suppressor D1；
The resistance R1 connects after being connected with the transient suppressor D2 with the one of which output end of the transformer T1, described
Resistance R1 and transient suppressor D2 both ends are parallel with wideband filtered circuit.
Preferably, the transformer T1 is high frequency transformer.
Preferably, the zero line L of the 220V AC powers is connected with electric capacity C1 one end, the other end of the electric capacity C1
It is connected with after transformer T1 input series connection with the zero line side N of the 220V AC powers.
Compared with prior art, the beneficial effects of the invention are as follows：In the present invention, electric capacity C1 effect is logical high frequency, and resistance is low
Frequently, i.e. electric capacity C1 can allow the carrier signal of high frequency by and being blocked to 50 hertz of ac signal of low frequency；Transition presses down
Device D1 processed can absorb spike, shields；High frequency transformer T1, it is to isolate and transmit carrier signal that it, which is acted on,；Transition presses down
Device D2 processed, it is the amplitude for reducing impulse disturbances that it, which is acted on,；Resistance R1, it is to maintain the less distortion of carrier communication waveform that it, which is acted on, is led to
The mutual cooperation of each part is crossed, reaches preferable anti-jamming effectiveness, meanwhile, element used in the present invention is few, and reliability is high, cost
Low, anti-jamming effectiveness is notable.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram of the present invention；
Marked in figure：1st, wideband filtered circuit.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
As illustrated, a kind of power wire broadband carrier communication anti-jamming circuit, including 220V AC powers, electric capacity C1, change
Depressor T1, transient suppressor D1, transient suppressor D2 and resistance R1, the electric capacity C1 and the transformer T1 input string
The both ends of 220V AC powers are serially connected in after connection jointly, the input of the transformer T1 is in parallel with the transient suppressor D1；
The resistance R1 connects after being connected with the transient suppressor D2 with the one of which output end of the transformer T1, described
Resistance R1 and transient suppressor D2 both ends are parallel with wideband filtered circuit 1.
The transformer T1 is high frequency transformer.
Further optimize this programme, the zero line L of the 220V AC powers is connected with electric capacity C1 one end, the electric capacity
The C1 other end is connected with after transformer T1 input series connection with the zero line side N of the 220V AC powers.
Further optimize this programme, the wideband filtered circuit in the present invention be conventional filter circuit, and it is electric to may be selected to be electric capacity
Feel filter circuit, the circuit is prior art, is not described in detail here.
Anti-jamming circuit provided by the present invention is applied in the low-voltage power line carrier communication system of state's net electric energy meter, is had
Effect overcomes the problem of existing bandwidth carrier receives the anti-impulse disturbances ability in loop.
It should also be noted that, herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and not necessarily require or imply between these entities or operation
Any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to contain
Lid nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (3)
1. a kind of power wire broadband carrier communication anti-jamming circuit, including 220V AC powers, electric capacity C1, transformer T1, transition
Suppressor D1, transient suppressor D2 and resistance R1, it is characterised in that：The electric capacity C1 and transformer T1 input string
The both ends of 220V AC powers are serially connected in after connection jointly, the input of the transformer T1 is in parallel with the transient suppressor D1；
The resistance R1 connects after being connected with the transient suppressor D2 with the one of which output end of the transformer T1, described
Resistance R1 and transient suppressor D2 both ends are parallel with wideband filtered circuit.
A kind of 2. power wire broadband carrier communication anti-jamming circuit according to claim 1, it is characterised in that：The transformation
Device T1 is high frequency transformer.
A kind of 3. power wire broadband carrier communication anti-jamming circuit according to claim 1, it is characterised in that：The 220V
The zero line L of AC power is connected with electric capacity C1 one end, and the other end of the electric capacity C1 is connected with transformer T1 input
The zero line side N with the 220V AC powers is connected afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711143326.XA CN107733469B (en) | 2017-11-17 | 2017-11-17 | Anti-interference circuit for power line broadband carrier communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711143326.XA CN107733469B (en) | 2017-11-17 | 2017-11-17 | Anti-interference circuit for power line broadband carrier communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107733469A true CN107733469A (en) | 2018-02-23 |
| CN107733469B CN107733469B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711143326.XA Active CN107733469B (en) | 2017-11-17 | 2017-11-17 | Anti-interference circuit for power line broadband carrier communication |
Country Status (1)
| Country | Link |
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| CN (1) | CN107733469B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111182777A (en) * | 2018-11-13 | 2020-05-19 | 上海元检自动化工程有限公司 | Programmable logic controller PLC device capable of resisting interference of strong magnetic field |
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| CN202034974U (en) * | 2011-03-09 | 2011-11-09 | 中国振华电子集团智能科技有限责任公司 | Coupling device used for isolating and matching signals |
| CN102223160A (en) * | 2011-06-21 | 2011-10-19 | 深圳市智联信通科技有限公司 | Power line carrier communication transmitting circuit |
| CN103368524A (en) * | 2013-06-17 | 2013-10-23 | 成都荣耀科技有限公司 | Signal conditioning circuit for remote monitoring system of distribution transformer |
| CN203617994U (en) * | 2013-12-20 | 2014-05-28 | 长沙威胜信息技术有限公司 | Orthogonal frequency division multiplexing (OFDM) multi-carrier modulation electric power data communication circuit |
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| CN105610468A (en) * | 2016-01-11 | 2016-05-25 | 国家电网公司 | Integrated capacitive coupler for narrowband carrier communication of medium voltage power line |
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| CN111182777A (en) * | 2018-11-13 | 2020-05-19 | 上海元检自动化工程有限公司 | Programmable logic controller PLC device capable of resisting interference of strong magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107733469B (en) | 2023-10-20 |
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