CN1655471A - Power line communication signal superposition device and power line communication network employing same - Google Patents
Power line communication signal superposition device and power line communication network employing same Download PDFInfo
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- CN1655471A CN1655471A CN 200510005995 CN200510005995A CN1655471A CN 1655471 A CN1655471 A CN 1655471A CN 200510005995 CN200510005995 CN 200510005995 CN 200510005995 A CN200510005995 A CN 200510005995A CN 1655471 A CN1655471 A CN 1655471A
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Abstract
To provide a power line communication signal superimposing apparatus and power line communication network using the same in which a communication signal outputted from one terminal device can be transmitted to another terminal device even if characteristics of a power line as a transmission line are deteriorated or unstable by connection or the like of a number of electrical products to the power line between the connected terminal devices. One of first AC cords 63b is inserted to or wound around a first magnetic core 62, one of second AC cords 67b is inserted to or wound around a second magnetic core 66, terminals of the first AC cord 63b and terminals of the second AC cord 67b are connected by impedance elements 64, 68 wherein impedance becomes high in a frequency of a commercial power source and impedance becomes low in a higher frequency, and a first conductor line 61 and a second conductor line 65 are connected with each other to form a loop.
Description
Technical field
The present invention relates to the electric-power wire communication signal stacking apparatus and uses its power line communication network.
Background technology
The powerline network in the past that uses 3 phases, 3 line formula power lines is described by Fig. 4.Connecting terminal A between R phase power line 10 and S phase power line 20, connecting terminal B between S phase power line 20 and T phase power line 30, connecting terminal C between T phase power line 30 and R phase power line 10.
In addition, R phase power line 10 connects coupling circuit 100 between S phase power line 20 and the T phase power line 30.Coupling circuit 100 is to be made of the first capacitor C1, the second capacitor C2 and the transformer T that tackle low-frequency component, and transformer T has primary winding L1, secondary coil L2.
That is to say, the series circuit that constitutes by the primary winding L1 by the first capacitor C1 and transformer T between R phase power line 10 and S phase power line 20 is connected, and is connected with the series circuit that the second capacitor C2 constitutes by the secondary coil L2 by transformer T between S phase power line 20 and T phase power line 30.And, between T phase power line 30 and R phase power line 10, passing through by the second capacitor C2, transformer T is connected with the first capacitor C1.
Thus, the terminal A that between R phase power line 10 and S phase power line 20, connects, the power communication between the terminal C three who connects between the terminal B that connects between S phase power line 20 and the T phase power line 30 and T phase power line 30 and the R phase power line 10 becomes possibility.(for example, referring to Patent Document 1).
In the said structure, in 3 line-to-lines arbitrarily in the 3 line formula power lines mutually, can power line communication, still, because the power line between each terminal has connected a lot of electric products etc., it is unstable that the impedance of electric wire becomes, and hinders the transmission between the terminal.
Patent documentation 1: the spy opens flat 07-235897 communique (Fig. 1).
Summary of the invention
The object of the invention is: even provide owing to connected a lot of electric products etc. on the power line between the terminal installation that connects, as the power line characteristic degradation that transmits the road, perhaps unstable, also the signal of communication from a terminal installation output can be sent to the electric-power wire communication signal stacking apparatus of another terminal installation and use its power line communication network.
Scheme one, electric-power wire communication signal stacking apparatus of the present invention possesses: by ring-type the 1st magnetic core of the 1st conductor loop coiled; Ring-type the 2nd magnetic core by the 2nd conductor loop coiled; 1AC plug cord with 1AC plug and a pair of 1AC flexible cord that is connected above-mentioned 1AC plug; 2AC plug cord with 2AC plug and a pair of 2AC flexible cord that is connected above-mentioned 2AC plug, on above-mentioned the 1st magnetic core, insert in the above-mentioned 1AC flexible cord, simultaneously, insert in the above-mentioned 2AC flexible cord on above-mentioned the 2nd magnetic core, connect between the terminal of above-mentioned 1AC flexible cord with impedance component and between the terminal of above-mentioned 1AC flexible cord, above-mentioned the 1st lead and the 2nd lead interconnect, and form loop.
Scheme two also possesses: ring-type the 3rd magnetic core of the 3rd conductor loop coiled; The 4th magnetic core of the 4th conductor loop coiled, on above-mentioned the 3rd magnetic core in the above-mentioned 1AC flexible cord of insertion another, simultaneously, on above-mentioned the 4th magnetic core in the above-mentioned 2AC flexible cord of insertion another, parallel connection or be connected in series above-mentioned the 1st lead and above-mentioned the 3rd lead, in parallel or connect above-mentioned the 2nd lead and above-mentioned the 4th lead.
Scheme three, with above-mentioned impedance component as under the source power supply frequency, the impedance height, than its high frequency the time, the impedance component of impedance step-down.
Scheme four constitutes above-mentioned impedance component with the series circuit of inductance element and capacitor element, and the resonance frequency of above-mentioned series circuit is set between 2～30MHz.
Scheme five, power line communication network of the present invention possesses: have a plurality of insert mouthful and be provided with in the family mutually away from the AC socket of two positions; Be used to carry out power line communication, with the 1st terminal installation that is connected in the above-mentioned socket; Be used to carry out power line communication, the 2nd terminal installation that is connected with another socket; With scheme one to the four described electric-power wire communication signal stacking apparatus in each, above-mentioned 1AC plug is connected in the above-mentioned socket, and above-mentioned 2AC plug is connected in above-mentioned another socket.
Electric-power wire communication signal stacking apparatus according to scheme one, in the 1st magnetic core, insert in the 1AC flexible cord, simultaneously, in the 2nd magnetic core, insert in the 2AC flexible cord, connect with impedance component between the terminal of 1AC flexible cord and between the 1AC flexible cord terminal, the 1st lead and the 2nd lead are interconnected to form loop, so the power line that the plug of the 2AC flexible cord that can effectively electric-power wire communication signal be added to from the power line of the plug connection of 1AC flexible cord connects.
In addition, according to scheme two described electric-power wire communication signal stacking apparatus, it possesses ring-type the 3rd magnetic core of the 3rd conductor loop coiled and by ring-type the 4th magnetic core of the 4th conductor loop coiled, in the 3rd magnetic core in the insertion 1AC flexible cord another, simultaneously, in the 4th magnetic core in insertion the 2nd lead another, because the 1st lead and the 3rd lead are in parallel or be connected in series, the 2nd lead and the 4th lead are in parallel or be connected in series, so AC flexible cord and power line are in poised state as transmission lines, can suppress useless radiation.
Also have, according to scheme three described electric-power wire communication signal stacking apparatus, owing to adopt impedance height under the source power supply frequency, the impedance component that impedance reduces under the frequency higher than it is as impedance component, therefore flow through the 1st and the signal code of 2AC flexible cord become big, the power line that can be effectively electric-power wire communication signal be connected from the 1AC flexible cord power line that the 2AC lead connects that is added to, and, the loss of source power supply can be reduced.
Also have, according to scheme four described electric-power wire communication signal stacking apparatus, series circuit by inductance element and capacitor element constitutes impedance component, the resonance frequency of series circuit is set between 2～30MHz, the 1st and the 2AC flexible cord in can flow through the peak signal electric current, the power line that can be effectively electric-power wire communication signal be connected from the 1AC flexible cord power line that the 2AC lead connects that is added to, and, the loss of source power supply can be reduced.
Also have, according to scheme five described power line communication networks, it possesses: have a plurality of insertions mouths, be arranged on two mutual AC sockets away from the position in the family; In order to carry out power line communication, be connected to the 1st terminal installation in the above-mentioned socket; In order to carry out power line communication, be connected to the 2nd terminal installation in another socket; With any one described electric-power wire communication signal stacking apparatus in the scheme one to four, the 1AC plug is connected on the socket, the 2AC plug is connected in another socket, even the power line between the 1st terminal installation and the 2nd terminal installation is as the characteristic degradation of signal of communication drive access, also can pass through the electric-power wire communication signal stacking apparatus, communication quality not worsened and intercommunication mutually.
Description of drawings:
Fig. 1 is the circuit diagram of the 1st execution mode structure of expression electric-power wire communication signal stacking apparatus of the present invention and the power line communication network that uses it.
Fig. 2 is the circuit diagram of the 2nd execution mode structure of expression electric-power wire communication signal stacking apparatus of the present invention and the power line communication network that uses it.
Fig. 3 is the circuit diagram of other structures of electric-power wire communication signal stacking apparatus of the present invention.
Fig. 4 is the circuit diagram of representing electric-power wire communication signal stacking apparatus in the past and using its power line communication network structure.
Among the figure: 1-1AC socket, 2-2AC socket, 3-power line, 4-the 1st terminal installation, 4a-AC plug, 4b-communication modem, 5-the 2nd terminal installation, 5a-AC plug, 5b-communication modem, 6-electric-power wire communication signal stacking apparatus, 61-the 1st lead, 62-the 1st magnetic core, 63-the 1st plug cord, 63a-1AC plug, 63b-1AC flexible cord, 64-the 1st impedance component, 65-the 2nd lead, 66-the 2nd magnetic core, 67-2AC plug cord, 67a-2AC plug, 67b-2AC flexible cord, 68-the 2nd impedance component, 69-the 3rd magnetic core, 70-the 3rd lead, 71-the 4th magnetic core, 72-the 4th lead, L-inductance element, C-capacitor element.
Embodiment
Explanation power line communication information stacking apparatus of the present invention and its power line communication network of use see figures.1.and.2.Fig. 1 represents the 1st execution mode, and Fig. 2 represents the 2nd execution mode.
Among Fig. 1,1AC socket 1 and 2AC socket 2 be provided with in the family mutually away from two positions.1AC socket 1 and 2AC socket 2 interconnect by the power line 3 of wiring in the family.The 1st and 2AC socket 1,2 have the insertion mouth that a plurality of AC plugs insert usefulness respectively.
The AC plug 4a of the 1st terminal installation 4 of dedicated for electric line communication inserts in the insertion mouth of 1AC socket 1.The 1st terminal installation 4 has communication modem 4b.In addition, the AC plug 5a of the 2nd terminal installation 5 of dedicated for electric line communication inserts an insertion mouth of 2AC socket 2.The 2nd terminal installation 5 has communication modem 5b.And as an example, the 1st terminal installation 4 and the 2nd terminal installation 5 intercom power line 3 mutually as transmission lines.
The residue of 1AC socket 1 is inserted the residue of mouth and 2AC socket 2 and is inserted connection electric-power wire communication signal stacking apparatus 6 between the mouth.Electric-power wire communication signal stacking apparatus 6 has: ring-type the 1st magnetic core 62 that the 1st lead 61 encompasses; Ring-type the 2nd magnetic core 66 that the 2nd lead 65 encompasses; 1AC plug cord 63 with 1AC plug 63a and a pair of 1AC flexible cord (1AC flexible cord) 63b that is connected it; And have the 2AC plug cord 67 of 2AC plug 67a with a pair of 2AC flexible cord (2AC flexible cord) 67b that is connected it.The the 1st and the 2nd magnetic core 62,66 is made of ferrite.
And, one among the 1AC flexible cord 63b is inserted in the 1st magnetic core 62, is connected by the 1st impedance component 64 between the terminal of 1AC flexible cord 63b, in addition, one among the 2AC flexible cord 67b is inserted in the 2nd magnetic core 66, is connected by the 2nd impedance component 68 between the terminal of 2AC flexible cord 67b.
The frequency characteristic that the 1st and the 2nd impedance component 64,68 has respectively separately presents high impedance for the source power supply frequency, and (bandwidth roughly is 2～30MHz) to present Low ESR for the frequency of electric-power wire communication signal.As its example, the 1st and the 2nd impedance component 64,68 is made of capacitor element as shown in Figure 1.
And 1AC plug 63a is inserted in the 1AC socket 1, and 2AC plug 2 is inserted in the 2AC socket 2.
The power line 3 that connects 1AC socket 1 and 2AC socket 2, originally the function that had the transmission lines that intercoms mutually as the 1st terminal installation 4 and the 2nd terminal installation 5, but, owing in its way, connect a plurality of electric products etc., when the impedance operator of transmission lines is inappropriate, do not adjust the 1st terminal installation 4 and the 2nd terminal installation 5, communication quality can descend.; if above-mentioned electric-power wire communication signal stacking apparatus 6 is connected between 1AC socket 1 and the 2AC socket 2; the signal of communication that outputs to 1AC socket 1 from the 1st terminal installation 4 is adorned 6 by this electric-power wire communication signal stack and is added on the 2AC socket 2; from being input to the 2nd terminal installation 5 here; therefore, intercommunication becomes possibility mutually.
That is to say that for example, the signal of communication of exporting from the 1st terminal installation 4 enters 1AC flexible cord 63b from 1AC socket 1.Because the 1st lead 61 that is looped around in the 1st magnetic core 62 constitutes current transformer with the AC flexible cord 63b that inserts the 1st magnetic core 62, in the 1st lead 61, induce voltage by signal of communication, therefore, electric current also can flow in the 2nd lead 65.Because the 2nd lead 65 that encompasses in the 2nd magnetic core 66 also constitutes current transformer with the 2AC flexible cord 67b that is inserted into the 2nd magnetic core 66, so by the electric current that flows through the 2nd lead 65, in 2AC flexible cord 67b, go out voltage, and be entered in the 2nd terminal installation 5 based on induction of signal.
Be connected the 1st and 2AC flexible cord 63b, each self terminal of 67b between impedance component 64,68 because its impedance has above-mentioned frequency characteristic, signal of communication flows through easily, and the power consumption of source power supply is few.
Below, as shown in Figure 2, the 2nd execution mode is described.In Fig. 2, the structure identical with Fig. 1 given identical symbol.In the 2nd execution mode, on electric-power wire communication signal stacking apparatus 6, append ring-shaped magnetic core 69 and around its 3rd lead 70, ring-type the 4th magnetic core 71 and around its 4th lead 72.And another among the 1AC flexible cord 63b inserts the 3rd magnetic core 69.Be connected in parallel around the 3rd lead 70, the 3 leads 70 and the 1st lead 61 in the 3rd magnetic core 69.In addition, another among the 2AC flexible cord 67b is inserted in the 4th magnetic core 71.Be connected in parallel around the 4th lead 72, the 4 leads 72 and the 2nd lead 65 in the 4th magnetic core 71.The 3rd magnetic core 69 and the 4th magnetic core 71 also are made of ferrite.
Wherein, connect the 1st lead 61 and the 3rd lead 70, make the voltage that in both sides' lead, induces become the coordination phase.Equally, connect the 2nd lead 65 and the 4th lead 72, make in both sides' lead, to induce voltage and become the coordination phase.
Structure according to the 2nd execution mode, because one among the 1AC flexible cord 63b is inserted in the 1st magnetic core 62, another is inserted in the 3rd magnetic core 69, equally, one of 2AC flexible cord 67b is inserted in the 2nd magnetic core 66, and another is inserted in the 4th magnetic core 71, therefore, the power line 3 that each AC flexible cord 63b, 67b and their connect becomes poised state, and the unwanted radiation of sending from each AC flexible cord 63b, 67b and power line 3 is suppressed.
And, not expression among the figure, the voltage that the connection between connection between the 1st lead 61 and the 3rd lead 70 and the 2nd lead 65 and the 4th lead 72 causes mutually is if add up mutually with coordination and to be, just is not limited to be connected in parallel, also can be to be connected in series.When being connected in series, the 1st～the 4th lead 61,65,70,72 constitutes closed loop mutually.
In addition, impedance component the 64, the 68th illustrated in figures 1 and 2 is made of the series circuit of inductance component L shown in Figure 3 and capacitor element C, and is consistent with communication signal frequency by making its resonance frequency, can more effectively carry out signal and transmits.Because the frequency band of signal of communication is 2～30MHz, if resonance frequency selects frequency therebetween more effective, for example, 10MHz.
Claims (5)
1, a kind of electric-power wire communication signal stacking apparatus is characterized in that,
Possess: ring-type the 1st magnetic core of the 1st conductor loop coiled; Ring-type the 2nd magnetic core of the 2nd conductor loop coiled; The 1AC plug cord, it has 1AC plug and a pair of 1AC flexible cord that is connected with above-mentioned 1AC plug; The 2AC plug cord, it has 2AC plug and a pair of 2AC flexible cord that is connected with above-mentioned 2AC plug,
Wherein, one in the above-mentioned 1AC flexible cord is inserted in above-mentioned the 1st magnetic core, simultaneously, one in the above-mentioned 2AC flexible cord is inserted in above-mentioned the 2nd magnetic core, connect with impedance component between the terminal of above-mentioned 1AC flexible cord and between the terminal of above-mentioned 1AC flexible cord, above-mentioned the 1st lead and above-mentioned the 2nd lead are interconnected to form loop.
2, electric-power wire communication signal stacking apparatus according to claim 1 is characterized in that,
Possess ring-type the 3rd magnetic core of the 3rd conductor loop coiled and ring-type the 4th magnetic core of the 4th conductor loop coiled, in above-mentioned the 3rd magnetic core in the above-mentioned 1AC flexible cord of insertion another, simultaneously, in above-mentioned the 4th magnetic core in the above-mentioned 2AC flexible cord of insertion another, above-mentioned the 1st lead and above-mentioned the 3rd lead are in parallel or be connected in series, and above-mentioned the 2nd lead and above-mentioned the 4th lead are in parallel or be connected in series.
3, electric-power wire communication signal stacking apparatus according to claim 1 and 2 is characterized in that,
With above-mentioned impedance component as impedance height under the source power supply frequency, the impedance component of impedance step-down under the frequency higher than it.
4, electric-power wire communication signal stacking apparatus according to claim 3 is characterized in that,
Series circuit by inductance element and capacitor element constitutes above-mentioned impedance component, and the resonance frequency of above-mentioned series circuit is set between 2～30MHz.
5, a kind of power line communication network is characterized in that,
Possess: the AC socket, it has a plurality of mouths that insert two positions that are separated from each other in the family also is set; The 1st terminal installation, it is connected with an above-mentioned socket in order to carry out power line communication; The 2nd terminal installation, it links to each other with another socket in order to carry out power line communication; With any described electric-power wire communication signal stacking apparatus in the claim 1～4,
Wherein, above-mentioned 1AC plug is connected on the above-mentioned socket, and above-mentioned 2AC plug is connected on another socket.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004031611 | 2004-02-09 | ||
| JP2004031611 | 2004-02-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107925440A (en) * | 2015-08-12 | 2018-04-17 | 费斯托股份有限两合公司 | Field device coupling unit and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107925440A (en) * | 2015-08-12 | 2018-04-17 | 费斯托股份有限两合公司 | Field device coupling unit and system |
| CN107925440B (en) * | 2015-08-12 | 2021-09-21 | 费斯托股份两合公司 | Field device coupling unit and system |
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