CN1937436A - Stacking mode for electric-power wire communication signal - Google Patents
Stacking mode for electric-power wire communication signal Download PDFInfo
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- CN1937436A CN1937436A CN 200610154009 CN200610154009A CN1937436A CN 1937436 A CN1937436 A CN 1937436A CN 200610154009 CN200610154009 CN 200610154009 CN 200610154009 A CN200610154009 A CN 200610154009A CN 1937436 A CN1937436 A CN 1937436A
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Abstract
Provided is a stacking mode for electric-power wire communication signal to efficiently couple a signal from a PLC modem to an AC line for power distribution and to efficiently input a signal on the AC line for power distribution to the PLC modem. By providing magnetic cores (91, 92) constituted annularly wherein the AC line (17) for power distribution penetrates the same, two signal lines from the PLC modem 11 penetrate the magnetic cores (91, 92) along the AC line 17 for power distribution, the two signal lines are connected through an impedance element Z after they penetrating the magnetic cores (91, 92). The impedance element (Z) uses an element having 50 to 200 Omega in a 20 MHz band as a frequency band used for power line communication; and is constituted by using a resistance, a capacitor, or a coil, or an assembly thereof.
Description
Technical field
The present invention relates to electric line communication signal overlapping mode, particularly a kind of electric line communication signal overlapping mode that in power line communication (PLC:Power Line Communication) system, can carry out the transmitting-receiving of signal expeditiously between employed modem dedicated for electric line communication (PLC modulator-demodulator) and the power line.
Background technology
In recent years, a kind of following system has been proposed, promptly, within the family etc., make that equipment has the power line communication function in the family of various families electrical article etc., can equipment in these families be monitored, control by the main frame that PC etc. constitutes, and, from the outside via public telecommunication network above-mentioned main frame is conducted interviews, monitor control from the outside to equipment in the family.In addition, following system has also been proposed, this system can handle the more signal of high speed based on power line communication, and multimedia messagess such as the image information from ISP (Internet Service Provider) of public communication network by comprising the Internet etc., acoustic information can be presented on the display unit of PC etc. in real time.This electric line communication system generally is to be connected on the same power line by the terminal installation that will comprise various home appliances, PC etc. to constitute.
And, for the terminal installation that will comprise various home appliances, PC etc. is connected on the same power line, use is called as the modulator-demodulator of PLC modulator-demodulator, this PLC modulator-demodulator for and power line between communicate the transmitting-receiving of signal, have the overlaying function of signal of communication.
Fig. 6 be the expression conventional art will be superimposed upon the block diagram of the configuration example of the stacked system on the power line from the holding wire of PLC modulator-demodulator.In Fig. 6, the 11st, PLC modulator-demodulator, the 12nd, coupling transformer, the 13rd, signal transmitting and receiving circuit, the 14th, supply unit (PS), the 15th, attaching plug, the 16th, socket, the 17th, distribution are that resistance, C are electric capacity with AC line, R.
PLC modulator-demodulator 11 shown in Figure 6 is set at the inside of home appliance, PC etc. usually, perhaps is connected with these equipment and uses from outside, and it comprises: signal transmitting and receiving circuit 13, coupling transformer 12 and supply unit 14.Supply unit 14 is by making attaching plug 15 and be located at distribution and be connected with the socket on the AC line 17 16, the internal unit of PLC modulator-demodulator 11 carried out electric power supply with.Be set at PLC modulator-demodulator 11 under the situation of inside of home appliance, PC etc., supply unit 14 also carries out electric power to these equipment and supplies with.
And the signal that signal transmitting and receiving circuit 13 will be used to communicate by letter is superimposed upon distribution AC line 17, and is taken into from the signal of distribution with AC line 17.From a pair of holding wire of this signal transmitting and receiving circuit 13, the parallel circuits by coupling transformer 12, resistance R and capacitor C is connected with AC line 17 with distribution in the inside of PLC modulator-demodulator 11.As mentioned above, send to the parallel circuits of the signal of other PLC modulator-demodulators from signal transmitting and receiving circuit 13, be superimposed on as the distribution on communication road and use on the AC line 17, send via coupling transformer 12, resistance R and capacitor C.And, send to distribution with the signal on the AC line 17 from other PLC modulator-demodulators, parallel circuits, coupling transformer 12 via resistance R and capacitor C are imported in the signal transmitting and receiving circuit 13, are delivered to the home appliance that is connected with PLC modulator-demodulator 11, PC etc. then.
Such as described above, be connected the PLC modulator-demodulator 11 that uses with home appliance, PC etc., usually be connected with AC line 17 with the distribution on the communication road that becomes electric line communication system in the inside of self modulator-demodulator, carry out the stack of signal.But, when at the collective residence in residential building, apartment etc. or have many families independently in the office building etc. of offices etc., these buildings are all set up electric line communication system, utilization has the base station that information processor such as the PC of PLC modulator-demodulator constitutes the external interface function that is connected with control and external public network etc., and this base station will be arranged under the interior situation of building, produced this power supply and guaranteed the problem of aspect and when construction is set, can cut off the problem of distribution with the AC line.
Fig. 7 is the figure of the distribution of explanation under situation about the base station being arranged in the building with the relation between AC line and the set base station.In Fig. 7, the 71st, distribution board, the 72nd, outside run, 73, the 74th, distribution is with AC line, the 75th, base station, the 76th, PC, other symbol is identical with the situation of Fig. 6.
As shown in Figure 7, in general, at collective residence, have the part of the input electric power in the office building etc. of how tame office etc., be provided with the distribution board 71 that is connected with outside run, the distribution that is used for the office that will offer each household by the electric power that distribution board 71 distributes, move in etc. is introduced in the building with AC line 17,73,74.The office that receives each household that electric power supply with from these distribution with AC line 17,73,74, moves in, establish electric line communication system respectively.And, at the base station 75 of these electric line communication systems, generally be set near the distribution board 71 in the building.
Example shown in Figure 7 is in the base station 75 that is made of PLC modulator-demodulator 11 and PC76 by near the connection distribution board 71 of distribution with AC line 17.And, though be fed into distribution is the electric power of supplying with each household, office with the electric power of AC line 17,73,74, but base station 75 from connection shown in Figure 7 the position of base station 75 receive the supply of electric power, be to use and be not implemented the electric power of handling at the charge of each household, office, that is, caused power stealing.Therefore, though, can carry out base station 75, can not carry out the supply of electric power from this position to the signal stack of distribution with the AC line in position shown in Figure 7.
Fig. 8 is the block diagram of other configuration examples of the stacked system that will superpose from the holding wire of PLC modulator-demodulator and power line of expression conventional art.Symbol among Fig. 8 is identical with the situation of Fig. 6.Example shown in Figure 8 can prevent that the use of electric power from becoming the situation of power stealing.
Though PLC modulator-demodulator 11 shown in Figure 8 has the same configuration illustrated with Fig. 6, but will not be connected with the AC line with distribution in modulator-demodulator inside from the holding wire of PLC modulator-demodulator, but the holding wire via the parallel circuits of coupling transformer 12, resistance R and capacitor C that constitutes PLC modulator-demodulator 11 is drawn out to the outside earlier, directly be connected with AC line 17 then with distribution, thereby can with to the plug of supply unit 14 supply capabilities being implemented the part that charge is handled, be connected with the AC line with the distribution that secures permission.By such formation PLC modulator-demodulator, can prevent the power stealing situation in the electricity usage discussed above.But this example is owing to directly be connected with distribution holding wire with AC line 17, so, inferior in the situation that construction is set of carrying out base station 75, produced the problem of distribution usefulness AC line 17 grades of having to temporarily cut off.
Fig. 9 be the expression conventional art will be superimposed upon the block diagram of another configuration example of the stacked system on the power line from the holding wire of PLC modulator-demodulator.In Fig. 9, the 91, the 92nd, magnetic core, other symbol is identical with the situation of Fig. 6.Example shown in Figure 9 can prevent the power stealing situation in the electricity usage, and, when being provided with of base station constructed,, also the signal of PLC modulator-demodulator 11 can be superimposed upon distribution with on the AC line 17 even do not cut off distribution with AC line 17.
The PLC modulator-demodulator 11 of example shown in Figure 9, not as illustrated according to example shown in Figure 8, with PLC modulator-demodulator 11 via the holding wire of parallel circuits of coupling transformer 12, resistance R and capacitor C be directly connected to distribution with on the AC line 17, but the magnetic core 91,92 that will constitute ring-type is arranged to make distribution therefrom to connect with AC line 17, to connect magnetic core 91,92 along distribution with AC line 17 from 2 holding wires of PLC modulator-demodulator 11, connect at the front end that has connected magnetic core 91,92.According to such structure, will be coupled to distribution AC line 17 by magnetic core 91,92 from the signal of PLC modulator-demodulator 11.
As mentioned above, magnetic core 91,92 is cut apart formation by 2,, is combined into one behind the state in magnetic core at holding wire and distribution usefulness AC line 17 perforations.Utilize such magnetic core, be coupled to distribution with on the AC line 17 via signal from PLC modulator-demodulator 11, thus, carry out base station 75 construction is set the time etc., can avoid producing the problem that must temporarily cut off distribution with AC line 17 grades.
In addition, as with will be superimposed upon on the power line from the signal of PLC modulator-demodulator, and obtain the relevant conventional art of superimposed signal circuit that the signal on the power line uses, known have a technology that for example is recorded in patent documentation 1 grade.The conventional art is provided with the electric capacity that impedance matching is used from the signal output terminal of PLC modulator-demodulator, will be coupled on the power line by magnetic core from the signal of PLC modulator-demodulator.
[patent documentation 1] spy opens the 2004-32585 communique
What Fig. 9 was illustrated will be coupled to conventional art on the power line by magnetic core from the signal of PLC modulator-demodulator, owing to constitute 2 holding wires that make from the PLC modulator-demodulator, respectively along 2 distribution each line with the AC line, connect 2 magnetic cores separately, connect at the front end that has connected magnetic core, so the length of the holding wire of the part that dots in Fig. 9 of the front end that has connected magnetic core is little, therefore, the impedance of this part is little.The result, the conventional art illustrated according to Fig. 9,2 distribution do not match with the impedance of the holding wire that is connected at the front end that has connected magnetic core with the impedance each other of AC line, thereby have produced and can not will be superimposed upon distribution with the problem on the AC line 17 with sufficient size from the signal of PLC modulator-demodulator 11.
Summary of the invention
The objective of the invention is to solve the problem points of above-mentioned conventional art, a kind of electric line communication signal overlapping mode is provided, this mode can be coupled to the signal from the PLC modulator-demodulator distribution expeditiously with on the AC line, and can expeditiously distribution be taken in the PLC modulator-demodulator with the signal on the AC line.
To achieve the above object, the invention provides a kind of electric line communication signal overlapping mode, this mode will be coupled to from the signal of modem dedicated for electric line communication on the power line, to be taken in the described modem dedicated for electric line communication from the signal of power line, in the mode that connects respectively by 2 power lines that constitute at least, setting constitutes the magnetic core of ring-type, make 2 holding wires connect described magnetic core from modem dedicated for electric line communication, or on described magnetic core, twine a few, connecting magnetic core or having twined a few front end, 2 holding wires are connected by impedance component Z.
To achieve the above object, described impedance component is coil, electric capacity, resistance or element that these combinations are constituted.
To achieve the above object, described impedance component has and the roughly the same impedance of described power line impedance each other.
To achieve the above object, described impedance component has the impedance of 50 Ω～200 Ω under the employed frequency band of power line communication.
According to the present invention, can make distribution reach coupling with the impedance of the holding wire that is connected at the front end that has connected magnetic core with the impedance of AC line, thereby, signal from the PLC modulator-demodulator can be coupled to expeditiously distribution with on the AC line, and, distribution can be taken in the PLC modulator-demodulator expeditiously with the signal on the AC line.
Description of drawings
Fig. 1 is the block diagram of configuration example of the electric line communication signal overlapping mode of expression one embodiment of the present invention.
Fig. 2 is the figure of the structure of expression magnetic core.
To be explanation using single-phase 2 line formula distribution with the key diagram of walking line states from the holding wire of PLC modulator-demodulator perforation magnetic core under the situation of AC line to Fig. 3.
Fig. 4 be explanation used 2 mutually 3 line formula distribution with the key diagram of walking line states under the situation of AC line from the holding wire perforation magnetic core of PLC modulator-demodulator.
Fig. 5 be explanation used 3 mutually 4 line formula distribution with the key diagram of walking line states under the situation of AC line from the holding wire perforation magnetic core of PLC modulator-demodulator.
Fig. 6 be the expression conventional art will be superimposed upon the block diagram of the configuration example of the stacked system on the power line from the holding wire of PLC modulator-demodulator.
To be explanation be arranged on distribution under the situation in the building with the figure of the relation between AC line and the set base station with the base station to Fig. 7.
Fig. 8 be the expression conventional art will be superimposed upon the block diagram of other configuration examples of the stacked system on the power line from the holding wire of PLC modulator-demodulator.
Fig. 9 be the expression conventional art will be superimposed upon the block diagram of another other configuration examples of the stacked system on the power line from the holding wire of PLC modulator-demodulator.
Among the figure: 11-PLC modulator-demodulator; 12-coupling transformer; 13-signal transmitting and receiving circuit; 14-supply unit (PS); 15-attaching plug; 16-socket; 17-distribution AC line; 2A, 2B-2 cut apart magnetic core; 3A, 3B-resin box; 71-distribution board; 72-outside run; 73,74-distribution AC line; 75-base station; 76-PC; 91,92-magnetic core; R-resistance; C-electric capacity; Z-impedance component.
Embodiment
Below, in conjunction with the accompanying drawings, the execution mode of electric line communication signal overlapping mode of the present invention is described.
Fig. 1 is the block diagram of configuration example of the electric line communication signal overlapping mode of expression one embodiment of the present invention, and Fig. 2 is the figure of the structure of expression magnetic core.In Fig. 1, Fig. 2, Z be impedance component, 2A, 2B be 2 cut apart magnetic core, 3A, 3B are the resin boxes, other symbol is identical with the situation of Fig. 9.
Embodiments of the present invention shown in Figure 1, the magnetic core 91,92 that constitutes ring-type is arranged to make distribution AC line 17 perforations state wherein, constitute 2 holding wires that make from PLC modulator-demodulator 11 and connect magnetic core 91,92 with AC line 17 along distribution, front end having connected magnetic core 91,92 connects 2 holding wires by impedance component Z.In example shown in Figure 1, only make holding wire merely connect magnetic core, but also can make holding wire on magnetic core, twine a few.
In addition, be located at the impedance component Z on the holding wire, adopted employed frequency band in power line communication, promptly present the element of 50 Ω～200 Ω under the 20MHz frequency band.The value of this impedance component Z is set to and makes 2 distribution roughly the same with the mutual impedance of AC lines 17.Distribution with the impedance of AC line owing to mainly be that situation according to outside run changes, so, select the impedance component Z that when being provided with of PLC modulator-demodulator, has optimum value for use.And impedance component Z can be resistance, electric capacity, coil or with these elements that constitutes.
And, in example shown in Figure 1, represented the example of single-phase 2 lines with AC line 17 as distribution, a side distribution wire ground connection, the opposing party becomes live wire.And, can find out that from holding wire shown in Figure 1 perforation situation magnetic core 91,92 signal, is superimposed upon on the distribution wire of distribution with the ground connection side of AC line 17 and hot side to differ the rp states of 180 degree phase places from PLC modulator-demodulator 11.
In order to be superimposed upon distribution from the signal of PLC modulator-demodulator 11 with on the AC line 17 and the magnetic core 91,92 that uses, as shown in Figure 2, to cut apart magnetic core 2A, 2B and constitute by being divided into 2 semicircular 2, described magnetic core adopts formation such as ferrite.And, cut apart under the state of magnetic core 2A, 2B in separation 2, one side's 2 is cut apart magnetic core twine holding wire, dispose the distribution wire of distribution respectively 22 inside of cutting apart magnetic core 2A, 2B with AC line 17, resin box 3A, 3B by having not shown locking mechanism cut apart magnetic core 2A, 2B its composition surface of aliging with 22 and carried out combination then, thereby, do not need to cut off distribution and can make distribution connect magnetic core 91,92 with AC line 17 with AC line 17.And, can will be coupled on the distribution usefulness AC line 17 by magnetic core 91,92 simultaneously via the signal of magnetic core 91,92 from PLC modulator-demodulator 11.
According to embodiments of the present invention with above-mentioned structure, make 2 holding wires connect magnetic core 91,92 with AC line 17 along distribution from PLC modulator-demodulator 11, and 2 holding wires are connected by impedance component Z at the front end that has connected magnetic core 91,92, thereby, signal from PLC modulator-demodulator 11 can be coupled to expeditiously distribution with on the AC line 17, and, distribution can be taken in the PLC modulator-demodulator 11 expeditiously with the signal on the AC line 17.In addition, the base station of using in electric line communication system can be easily positioned near the distribution board.
Above-mentioned embodiment of the present invention, as distribution AC line 17, for example understand the example of single-phase 2 lines, but the present invention also can be applicable to 2 phases, 3 line formulas, the 3 distribution AC line of 4 line formulas mutually, and, for the distribution of different system AC line, for example, also can superpose simultaneously from the signal of PLC modulator-demodulator 11 for the illustrated distribution AC line 73,74 of Fig. 7 to each household, office's supply capability.
To be explanation using single-phase 2 line formula distribution with the figure that walks line states from the holding wire of PLC modulator-demodulator perforation magnetic core under the situation of AC line to Fig. 3, Fig. 4 be explanation used 2 mutually 3 line formula distribution with connecting the figure that walks line states of magnetic core from the holding wire of PLC modulator-demodulator under the situation of AC line, Fig. 5 be explanation used 3 mutually 4 line formula distribution with the figure that walks line states under the situation of AC line from the holding wire perforation magnetic core of PLC modulator-demodulator.In Fig. 3～Fig. 5, A is the ground connection side distribution wire of distribution with the AC line, and B～D is the hot side distribution wire.
Example shown in Figure 3 is the example of comparing for example that will be identical with the illustrated example of Fig. 1 and Fig. 4, example shown in Figure 5, in this description will be omitted.Example shown in Figure 4 is the example under the situation of the distribution usefulness AC line that has used 2 phases, 3 line formulas, and the cabling of holding wire is configured to make the signal from the PLC modulator-demodulator in phase to be superimposed upon on distribution wire B, the C of hot side.Certainly, and as shown in Figure 1, the signal phase of distribution wire A that is superimposed on the ground connection side is opposite.In addition, example shown in Figure 5 is the example under the situation of the distribution usefulness AC line that has used 3 phases, 4 line formulas, and in this case, the cabling of holding wire also is configured to make the signal from the PLC modulator-demodulator in phase to be superimposed upon on the distribution wire B～D of hot side.And, in this case, also be opposite with the signal phase of the distribution wire A that is superimposed on the ground connection side.
Claims (4)
1. an electric line communication signal overlapping mode will be coupled on the power line from the signal of modem dedicated for electric line communication, and will be taken into from the signal of power line in the described modem dedicated for electric line communication,
In the mode that connects respectively by 2 power lines that constitute at least, setting constitutes the magnetic core of ring-type, make 2 holding wires connect described magnetic core or on described magnetic core, twine a few from modem dedicated for electric line communication, connecting magnetic core or having twined a few front end, 2 holding wires are connected by impedance component (Z).
2. electric line communication signal overlapping mode according to claim 1 is characterized in that, described impedance component is coil, electric capacity, resistance or element that these combinations are constituted.
3. electric line communication signal overlapping mode according to claim 1 and 2 is characterized in that, described impedance component has and the roughly the same impedance of described power line impedance each other.
4. electric line communication signal overlapping mode according to claim 1 and 2 is characterized in that, described impedance component under the employed frequency band, has the impedance of 50 Ω～200 Ω in power line communication.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005276181A JP2007088903A (en) | 2005-09-22 | 2005-09-22 | Power line communication signal superposition system |
| JP2005276181 | 2005-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1937436A true CN1937436A (en) | 2007-03-28 |
Family
ID=37954755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610154009 Pending CN1937436A (en) | 2005-09-22 | 2006-09-19 | Stacking mode for electric-power wire communication signal |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2007088903A (en) |
| CN (1) | CN1937436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467921A (en) * | 2014-10-29 | 2015-03-25 | 云南电网公司电力科学研究院 | Signal distributor of high-speed power line carrier communication system |
-
2005
- 2005-09-22 JP JP2005276181A patent/JP2007088903A/en not_active Withdrawn
-
2006
- 2006-09-19 CN CN 200610154009 patent/CN1937436A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467921A (en) * | 2014-10-29 | 2015-03-25 | 云南电网公司电力科学研究院 | Signal distributor of high-speed power line carrier communication system |
| CN104467921B (en) * | 2014-10-29 | 2017-04-05 | 云南电网公司电力科学研究院 | A kind of high speed power line carrier communication system signal distribution equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007088903A (en) | 2007-04-05 |
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Open date: 20070328 |