CN101325319A - Power supply box with digital communication system signal separator - Google Patents
Power supply box with digital communication system signal separator Download PDFInfo
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- CN101325319A CN101325319A CNA2008101036005A CN200810103600A CN101325319A CN 101325319 A CN101325319 A CN 101325319A CN A2008101036005 A CNA2008101036005 A CN A2008101036005A CN 200810103600 A CN200810103600 A CN 200810103600A CN 101325319 A CN101325319 A CN 101325319A
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Abstract
The invention relates to a power supply box provided with a digital communication system signal separator, which comprises a box body, a power supply connection seat used for introducing power and positioned in the box body, wherein the power supply connection seat is connected with an electric contact piece in a power supply jack through a leading-out power line; the power supply box further comprises a cable television signal wire access port, a signal separation circuit, a cable television signal wire output port and a coupler, wherein the cable television signal wire access port is used for accessing mixed signals of a cable television signal and a power line communication signal; the cable television signal and the power line communication signal are separated and output through the signal separation circuit; the separated cable television signal is output through the cable television signal wire output port and used for being supplied to the cable television input port of a television; the separated power line communication signal is received through the coupler and coupled to an indoor power line.
Description
Technical field
What the present invention relates to is a kind of power pack, particularly be a kind of will the separation with cable TV signal based on the electric-power wire communication signal of cable television network transmission, thereby the power pack that makes described electric-power wire communication signal transmit in indoor power grid.
Background technology
At present, cable television network CATV mainly is by hybrid fiber coax (HFC, Hybrid FiberCoax) the access network technology realizes, and current use hfc plant access technology, not only can realize the access of cable television program signal, and can realize the transmitted in both directions of high-speed data communication.The basis of realizing data communication function in hfc plant is that cable modem terminal system (CMTS is set on the basis of hfc plant structure, cable Modem Termination system), upconverter and Operation ﹠ Maintenance System server (OSS Sevice), and cable modem (CM, Cable Modem) equipment entity such as, be implemented in when transmitting the broadcast TV program signal in the hfc plant, carry out data communication service.
Chinese patent application publication number CN1744701 discloses a kind of based on cable television network realization data communications system, it includes television terminal, data communication terminal, wherein, described system utilizes global inserting of microwave interactive operation technology to realize data communication service on cable television network system, also comprise: light signal convergence processing device, be connected with metropolitan area network with the cable television network front end respectively, be used for and the cable television network front end between the interaction process cable TV signal, be used for simultaneously and metropolitan area network between mutual Ethernet data, finish the conversion between Ethernet protocol data and the global inserting of microwave interactive operation protocol data; The duplex mixing arrangement is connected with described light signal convergence processing device, is used for cable TV signal and global inserting of microwave interactive operation protocol data signal after the processing of light signal convergence processing device are mixed; The signal branch device, be connected with described television terminal with described duplexing mixing arrangement respectively, be used for isolating cable TV signal and global inserting of microwave interactive operation protocol data signal, and cable TV signal is sent to described television terminal broadcast in the mixed radiofrequency signal of duplexing mixing arrangement; With the terminal access device, be connected with described data communication terminal with described signal branch device respectively, send to described data communication terminal after being used for the isolated global inserting of microwave interactive operation protocol data of signal branch device is converted to the Ethernet protocol data, and be used for the Ethernet protocol data that described data communication terminal sends are converted to and send to light signal convergence processing device by described signal branch device and duplexing mixing arrangement behind the global inserting of microwave interactive operation protocol data and handle.But by to the reading of specification, find that its system that will realize is too huge, cost is than higher comparatively speaking, though and separate the back signal and can directly receive and handle, still need be at indoor cabling, thereby to the indoor influence that caused attractive in appearance; If in a plurality of rooms access network, then will certainly further increase extra cost.
In view of above-mentioned defective, creator of the present invention is through research and practice have obtained this creation finally for a long time.
Summary of the invention
The objective of the invention is to, a kind of power pack with digital communication system demultiplexer is provided, in order to overcome above-mentioned defective.
For achieving the above object, the technical solution used in the present invention is, a kind of power pack with digital communication system demultiplexer is provided, and it comprises:
One box body, and one be positioned at described box body in order to introducing the power wiring seat of power supply, described power wiring seat are drawn power line by one and are connected with electric contact point in the described supply hub, wherein, also comprise:
One cable TV signal line access interface, it inserts in order to the mixed signal with a cable TV signal and an electric-power wire communication signal;
One demultiplexing circuit, it separates output with described cable TV signal with electric-power wire communication signal;
One cable TV signal line output terminal mouth, it is with the cable TV signal output that is separated, in order to offer described television set cable TV input port;
The described electric-power wire communication signal that one coupler, its reception are separated, and it is coupled on the indoor power line;
Preferable, described demultiplexing circuit comprises: first filter and second filter, wherein, the logical frequent rate scope of described first filter and the frequency of described electric-power wire communication signal are complementary, and the logical frequent rate scope of described second filter and the frequency of described cable TV signal are complementary;
Preferable, also comprise: one obstructs filter circuit, between its electric contact point in described power wiring seat and described supply hub, and is arranged on described drawing on the power line, in order to intercept the high-frequency electromagnetic interference that power consumption equipment transmits;
Preferable, the described power line of drawing comprises: phase line and zero line, the described filter circuit that obstructs comprises: a filter capacitor and two filter inductances, wherein, described two filter inductances are provided with respectively on described phase line and the zero line, and described filter capacitor is arranged between described phase line and the zero line;
Preferable, described cable TV signal line output terminal mouth and described cable TV signal line access interface are separately positioned on the outer rim of described box body;
Preferable, described box body is provided with binding post, in order to be connected with body of wall;
Beneficial effect of the present invention compared with the prior art is, the cable access of being convenient to the mixing of cable TV signal and digital communication signal is indoor, need not the injection that additional equipment can be realized electric-power wire communication signal, saves cost, reduce redundant equipment and take up space simple installation.
Description of drawings
Fig. 1 has the power pack mounting structure figure of digital communication system demultiplexer for the present invention;
Fig. 2 has the functional block diagram of the power pack of digital communication system demultiplexer for the present invention;
Fig. 3 has the three-dimensional structure diagram of a preferred embodiment of the power pack of digital communication system demultiplexer for the present invention.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 1ly, it has the power pack mounting structure figure of digital communication system demultiplexer for the present invention; Similar on power pack of the present invention and the existing power pack structure, be arranged on usually on the described wall 0, all have the function in power taking source, be the input signal end 7 and the cable TV signal line output terminal mouth of cable TV with the existing structure that has more of comparing simultaneously.
See also shown in Figure 2, it has the functional block diagram of the power pack of digital communication system demultiplexer for the present invention, and on structure, its inside at box body 1 comprises as existing multiple power source box: a power wiring seat 2, it is to be connected with power line, in order to introduce power supply E; Described power wiring seat 2 is connected with electric contact point 3 in the described supply hub by drawing power line, and the plug of electrical appliance D is plugged in the described supply hub like this, just can realize its normal power supply.For power pack of the present invention, its special structure is that it comprises: a cable TV signal line access interface 7, and it inserts in order to the mixed signal B with a cable TV signal and an electric-power wire communication signal; The mixing prior art of sort signal discloses, and just repeats no more here; Also comprise a demultiplexing circuit 6 then, it separates output with described cable TV signal with electric-power wire communication signal; Because common existing cable TV signal frequency is 45MHz-860MHz, and the electric-power wire communication signal frequency just provides physical basis for two kinds of signals are separated at 2MHz-40MHz; Described demultiplexing circuit 6 can be a monoblock automatic control for frequency characteristics of filter integrated, also can form by two filters, the mixed signal B of described cable TV signal and electric-power wire communication signal, separated into two parts in described demultiplexing circuit 6, respectively by two channels, its breadboardin structure comprises: two filters, and the logical frequent rate scope of a filter is identical with described cable TV signal frequency range, perhaps comprises described cable TV signal frequency range; The logical frequent rate scope of another filter is identical with described electric-power wire communication signal frequency range, perhaps comprises described electric-power wire communication signal frequency range; But the logical frequency scope of described two filters is not normally occured simultaneously; Through described demultiplexing circuit 6, isolate two paths of signals, the one tunnel is the cable TV signal of high frequency, another road is low-frequency slightly electric-power wire communication signal; One cable TV signal line output terminal mouth 8, it transfers to television set by coaxial cable, in order to offer described television set cable TV input port with cable TV signal with the cable TV signal C output that is separated.
Also comprise: the described electric-power wire communication signal that a coupler (coupling coil) 5, its reception are separated, and it is coupled on the described indoor power line, so just the electrical network of whole electric-power wire communication signal at indoor 220V transmitted.
For electrical appliance D, it is inner all to be provided with the element that coil etc. can produce high-frequency signal usually, also comprise: one obstructs filter circuit 4 for this reason, it plays the effect of High frequency filter, between its electric contact point 3 in described power wiring seat 2 and described supply hub, and be arranged on described drawing on the power line, in order to intercept the high-frequency electromagnetic interference that power consumption equipment transmits; Since its be applied to indoor, therefore the described power line of drawing comprises: phase line and zero line, the described filter circuit that obstructs is divided into two High frequency filter inductance, be provided with respectively on described phase line and the zero line, intercepted high-frequency electromagnetic signal like this and entered described power line, eliminated influence electric-power wire communication signal.
See also shown in Figure 3ly, it has the three-dimensional structure diagram of a preferred embodiment of the power pack of digital communication system demultiplexer for the present invention; Described power pack comprises: a box body 1, use usually it is embedded on the body of wall, and the working face of described box body 1 has supply hub, and described supply hub can be that the two poles of the earth also can be three utmost points; Described box body inside has power wiring seat 2, described power wiring seat by three draw power line 23 be connected with electric shock sheet 3 (not shown) in the described supply hub (why be with three because wherein one be ground wire, in order to as three-terminal polarized plus plug); Described cable TV signal line output terminal mouth 8 and described cable TV signal line access interface 7 are separately positioned on the outer rim of described box body 1, being convenient to extraneous holding wire like this is connected with described power pack, in described box body 1 inside, be provided with described demultiplexing circuit 6, the one end is connected with described cable TV signal line output terminal mouth 8, the other end is connected with described cable TV signal line access interface 7, simultaneously by two holding wires 56, the input of isolated electric-power wire communication signal with described coupling coil (coupler) 5 is connected, described coupling coil (coupler) 5 is connected with the incoming end that described power supply inserts seat 2, and described electric-power wire communication signal is coupled on the described indoor power line; The described filter circuit that obstructs is a filter capacitor 43 and two High frequency filter inductance 41,42, wherein, described two High frequency filter inductance 41,42 are provided with respectively on described phase line and the zero line, and described filter capacitor 43 is arranged between described phase line and the zero line.
Simultaneously, on described box body 1, also be provided with binding post 11, in order to be connected with body of wall 0 by screw in order to realize combining between described box body 1 and the body of wall 0.
The above only is preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (6)
1, a kind of power pack with digital communication system demultiplexer, it comprises:
One box body, and one be positioned at described box body in order to introducing the power wiring seat of power supply, described power wiring seat are drawn power line by one and are connected with electric contact point in the described supply hub, it is characterized in that, also comprise:
One cable TV signal line access interface, it inserts in order to the mixed signal with a cable TV signal and an electric-power wire communication signal;
One demultiplexing circuit, it separates output with described cable TV signal with electric-power wire communication signal;
One cable TV signal line output terminal mouth, it is with the cable TV signal output that is separated, in order to offer described television set cable TV input port;
The described electric-power wire communication signal that one coupler, its reception are separated, and it is coupled on the indoor power line.
2, the power pack with digital communication system demultiplexer according to claim 1, it is characterized in that, described demultiplexing circuit comprises: first filter and second filter, wherein, the logical frequent rate scope of described first filter and the frequency of described electric-power wire communication signal are complementary, and the logical frequent rate scope of described second filter and the frequency of described cable TV signal are complementary.
3, the power pack with digital communication system demultiplexer according to claim 2, it is characterized in that, also comprise: one obstructs filter circuit, between its electric contact point in described power wiring seat and described supply hub, and be arranged on described drawing on the power line, in order to intercept the high-frequency electromagnetic interference that power consumption equipment transmits.
4, the power pack with digital communication system demultiplexer according to claim 3, it is characterized in that, the described power line of drawing comprises: phase line and zero line, the described filter circuit that obstructs comprises: a filter capacitor and two filter inductances, wherein, described two filter inductances are provided with respectively on described phase line and the zero line, and described filter capacitor is arranged between described phase line and the zero line.
5, the power pack with digital communication system demultiplexer according to claim 1 is characterized in that, described cable TV signal line output terminal mouth and described cable TV signal line access interface are separately positioned on the outer rim of described box body.
6, the power pack with digital communication system demultiplexer according to claim 5 is characterized in that, described box body is provided with binding post, in order to be connected with body of wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101036005A CN101325319A (en) | 2008-04-09 | 2008-04-09 | Power supply box with digital communication system signal separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101036005A CN101325319A (en) | 2008-04-09 | 2008-04-09 | Power supply box with digital communication system signal separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101325319A true CN101325319A (en) | 2008-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101036005A Pending CN101325319A (en) | 2008-04-09 | 2008-04-09 | Power supply box with digital communication system signal separator |
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| Country | Link |
|---|---|
| CN (1) | CN101325319A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924915A (en) * | 2010-08-10 | 2010-12-22 | 广东广联电子科技有限公司 | Power line-based digital television signal accessing method and digital television |
-
2008
- 2008-04-09 CN CNA2008101036005A patent/CN101325319A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924915A (en) * | 2010-08-10 | 2010-12-22 | 广东广联电子科技有限公司 | Power line-based digital television signal accessing method and digital television |
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Open date: 20081217 |