CN201601672U - Radio-frequency digital signal transmission system and radio-frequency digital signal access device - Google Patents
Radio-frequency digital signal transmission system and radio-frequency digital signal access device Download PDFInfo
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- CN201601672U CN201601672U CN2010200566596U CN201020056659U CN201601672U CN 201601672 U CN201601672 U CN 201601672U CN 2010200566596 U CN2010200566596 U CN 2010200566596U CN 201020056659 U CN201020056659 U CN 201020056659U CN 201601672 U CN201601672 U CN 201601672U
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Abstract
The utility model provides a radio-frequency digital signal transmission system and a radio-frequency digital signal access device, which are applicable to the technical field of digital signal transmission. The radio-frequency digital signal transmission system comprises a power transmission network, a first coupling unit and a second coupling unit, wherein the first coupling unit accesses radio frequency digital signals transmitted from a front server into the power transmission network in a coupled manner or reversely accesses the radio frequency digital signals returned from the power transmission network into the front server in a coupled manner, and the second coupling unit reversely accesses the radio frequency digital signals transmitted from the power transmission network into a digital signal access device in a coupled manner or accesses the radio frequency digital signals returned from the digital signal access device into the power transmission network in a coupled manner. Since the radio frequency digital signals are coupled into the power transmission network to realize transmission of the radio frequency digital signals, indoor cable routing requires no individual routing for the radio frequency digital signals, thereby simplifying routing space, saving a large amount of labor, coaxial cable materials and cable expenses.
Description
Technical field
The utility model belongs to digital signal transmission technique field, relates in particular to a kind of rf digital signal transmission system and rf digital signal access device.
Background technology
Prior art is when house wiring, with power transmission line and the independent networking respectively of rf digital signal transmission line.Particularly, power to household electrical appliance such as television set, charger, illuminating lamps by laying power line (as: 1.5mm is to the copper core of 2.5mm); Realize television set by laying coaxial wire, (Cable Modem, CM), the Ethernet coaxial network inserts (Ethernet Over Coax, EOC) connection between a plurality of radio-frequency signal processing devices such as equipment to the electric wire cable modem.
Because it is independent to two different network independent wiring to adopt above-mentioned networking mode to need, it is bigger to take up room, and need expend great amount of manpower and wire rod expense.
The utility model content
The purpose of this utility model is to provide a kind of rf digital signal transmission system, be intended to solve prior art when house wiring, need be with power transmission line and the independent networking respectively of rf digital signal transmission line, it is bigger to take up room, and need expend the problem of great amount of manpower and wire rod expense.
The utility model is achieved in that a kind of rf digital signal transmission system, and described system comprises:
The electric power transmission network of transferring electric power signal;
First coupling unit that the rf digital signal that front-end server is sent is coupled and inserts described electric power transmission network or the rf digital signal reverse coupled of described electric power transmission network passback is inserted front-end server, one end of described first coupling unit connects front-end server by coaxial cable, and the socket on the other end of described first coupling unit and the described electric power transmission network is pegged graft; And
Rf digital signal reverse coupled incoming digital signal access device that described electric power transmission network is sent or second coupling unit that the rf digital signal coupling of digital signal access device passback is inserted described electric power transmission network, socket on one end of described second coupling unit and the digital signal access device is pegged graft or is connected the socket grafting on the other end of described second coupling unit and the described electric power transmission network by data wire with socket on the digital signal access device.
In above-mentioned rf digital signal transmission system, described first coupling unit comprises:
First coaxial cable interface that connects front-end server by coaxial cable;
With first high pass filter that the socket on the described electric power transmission network is pegged graft, described first high pass filter carries out Filtering Processing to the rf digital signal via described first coaxial cable interface input; And
Be connected in first coupling transformer between described first coaxial cable interface and first high pass filter, described first coupling transformer is 1: 1 a coupling transformer.
In above-mentioned rf digital signal transmission system, described second coupling unit comprises:
Second coaxial cable interface of pegging graft with socket on the digital signal access device or being connected with socket on the digital signal access device by data wire;
Second coupling transformer that connects described second coaxial cable interface and described electric power transmission network, the socket on described second coupling transformer and the described electric power transmission network is pegged graft, and described second coupling transformer is 1: 1 a coupling transformer.
Further, described second coupling unit also comprises second high pass filter, described second coupling transformer is connected with described electric power transmission network by described second high pass filter, and the socket on described second high pass filter and the described electric power transmission network is pegged graft.
In above-mentioned rf digital signal transmission system, described digital signal access device is set-top box, electric wire cable modem or Ethernet coaxial network access device.
Another purpose of the present utility model is to provide a kind of rf digital signal access device, and described device comprises:
First coupling unit that the rf digital signal that front-end server is sent is coupled and inserts electric power transmission network or the rf digital signal reverse coupled of electric power transmission network passback is inserted front-end server, one end of described first coupling unit connects front-end server by coaxial cable, and the other end of described first coupling unit and the socket on the electric power transmission network are pegged graft.
In above-mentioned rf digital signal access device, described first coupling unit comprises:
First coaxial cable interface that connects front-end server by coaxial cable;
With first high pass filter that the socket on the electric power transmission network is pegged graft, described first high pass filter carries out Filtering Processing to the rf digital signal via described first coaxial cable interface input; And
Be connected in first coupling transformer between described first coaxial cable interface and first high pass filter, described first coupling transformer is 1: 1 a coupling transformer.
Another purpose of the present utility model is to provide a kind of rf digital signal access device, and described device comprises:
Rf digital signal reverse coupled incoming digital signal access device that electric power transmission network is sent or second coupling unit that the rf digital signal coupling of digital signal access device passback is inserted electric power transmission network, socket on one end of described second coupling unit and the digital signal access device is pegged graft or is connected the other end of described second coupling unit and the grafting of the socket on the electric power transmission network by data wire with socket on the digital signal access device.
In above-mentioned rf digital signal access device, described second coupling unit comprises:
Second coaxial cable interface of pegging graft with socket on the digital signal access device or being connected with socket on the digital signal access device by data wire;
Second coupling transformer that connects described second coaxial cable interface and electric power transmission network, the socket on described second coupling transformer and the electric power transmission network is pegged graft, and described second coupling transformer is 1: 1 a coupling transformer.
Further, described second coupling unit also comprises second high pass filter, and described second coupling transformer is connected with electric power transmission network by described second high pass filter, and the socket on described second high pass filter and the electric power transmission network is pegged graft.
The rf digital signal transmission system that the utility model embodiment provides is coupled to electric power transmission network by first coupling unit with the rf digital signal that front-end server sends, and by second coupling unit with the rf digital signal reverse coupled on the electric power transmission network to the digital signal access device; Perhaps the rf digital signal that the digital signal access device returns is coupled to electric power transmission network by second coupling unit, and pass through first coupling unit rf digital signal reverse coupled that electric power transmission network returns is arrived front-end server, because being coupled to electric power transmission network, rf digital signal realizes the rf digital signal transmission, when carrying out house wiring, need not the rf digital signal independent wiring, thereby simplified wiring space, and saved great amount of manpower and coaxial cable material and wire rod expense.
Description of drawings
Fig. 1 is the structure chart of the rf digital signal transmission system that provides of the utility model embodiment;
Fig. 2 is the concrete structure figure of first coupling unit among Fig. 1;
Fig. 3 is the concrete structure figure of second coupling unit among Fig. 1.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The rf digital signal transmission system that the utility model embodiment provides is coupled to electric power transmission network by first coupling unit with the rf digital signal that front-end server sends, and by second coupling unit with the rf digital signal reverse coupled on the electric power transmission network to the digital signal access device; Perhaps the rf digital signal that the digital signal access device returns is coupled to electric power transmission network, and the rf digital signal reverse coupled that electric power transmission network returns is arrived front-end server by first coupling unit by second coupling unit.
Fig. 1 shows the structure of the rf digital signal transmission system that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model embodiment.
The rf digital signal transmission system that the utility model embodiment provides comprises the electric power transmission network 2 of transferring electric power signal, the rf digital signal coupling that front-end server is sent inserts electric power transmission network 2 or the rf digital signal reverse coupled of electric power transmission network 2 passbacks is inserted first coupling unit 1 of front-end server, and rf digital signal reverse coupled incoming digital signal access device that electric power transmission network 2 is sent or second coupling unit 3 that the rf digital signal coupling of digital signal access device passback is inserted electric power transmission network 2.Wherein, an end of first coupling unit 1 connects front-end server by coaxial cable, and the socket on the other end of first coupling unit 1 and the electric power transmission network 2 is pegged graft; Socket on one end of second coupling unit 3 and the digital signal access device is pegged graft or is connected the socket grafting on the other end of second coupling unit 3 and the electric power transmission network 2 by data wire with socket on the digital signal access device.Digital signal access device wherein can be that set-top box, cable modem or ether data are by the coaxial cable transmission equipment.
Because the rf digital signal transmission system that the utility model embodiment provides is coupled to electric power transmission network with rf digital signal and realizes the rf digital signal transmission, when carrying out house wiring, need not the rf digital signal independent wiring, thereby simplified wiring space, and saved great amount of manpower and coaxial cable material and wire rod expense.
Fig. 2 shows the concrete structure of first coupling unit 1 among Fig. 1, for convenience of explanation, only shows the part relevant with the utility model embodiment.
Insert the overvoltage that electric power transmission network 2 backs are produced in order further to eliminate first coupling unit 1, among the utility model embodiment, first high pass filter 13 connects electric power transmission network 2 by an Overvoltage protecting unit (not shown).
Fig. 3 shows the concrete structure of second coupling unit among Fig. 1, for convenience of explanation, only shows the part relevant with the utility model embodiment.
When the digital signal access device is the digital signal access device with two-way interaction function, during as bi-directional set-top box etc., second coupling unit 3 also comprises second high pass filter 33, at this moment, second coupling transformer 32 is connected with electric power transmission network 2 by second high pass filter 33, and second high pass filter 33 is pegged graft with the socket on the electric power transmission network 2; Second high pass filter 33 is in order to realize the filtering to the rf digital signal of digital signal access device passback with two-way interaction function.Certainly, when the digital signal access device does not have the two-way interaction function, second coupling unit 3 also can comprise second high pass filter 33, and at this moment, second high pass filter 33 is in order to carry out further Filtering Processing to the rf digital signal via electric power transmission network 2 inputs.
Insert the overvoltage that electric power transmission network 2 backs are produced in order further to eliminate second coupling unit 3, among the utility model embodiment, second high pass filter 33 connects electric power transmission network 2 by an Overvoltage protecting unit (not shown).
Describe the course of work of above-mentioned rf digital signal transmission system below in detail:
1, the downlink radio frequency digital signal of the 110MHZ to 862MHZ that sends for the broadcasting and TV front-end server, this downlink radio frequency digital signal is transmission medium with the coaxial cable, enter first coupling unit 1 by first coaxial cable interface 11, after this rf digital signal is realized electrical isolation with electric power signal through 1: 1 coupling transformer afterwards, enter first high frequency filter 13 and carry out Filtering Processing, obtain the above high-frequency digital signal of 5MHZ, this high-frequency digital signal is blended on the power transmission line of electric power transmission network 2 by socket.
At digital signal access device end, second high pass filter 33 in second coupling unit 3 is by the socket received RF digital signal on the power transmission line, and this rf digital signal carried out further Filtering Processing, after the electrical isolation by 32 realizations of second coupling transformer and electric power signal, this rf digital signal is input to its direct grafting or by on the connected digital signal access device of data wire afterwards by second coaxial cable interface 31.
2, for digital signal access device with two-way interaction function, up rf digital signal as the bi-directional set-top box passback, this up radiofrequency signal enters second coupling unit 3 by second coaxial cable interface 31, after this rf digital signal is realized electrical isolation with electric power signal through 1: 1 coupling transformer afterwards, enter second high frequency filter 33 and carry out Filtering Processing, obtain the above high-frequency digital signal of 5MHZ, this high-frequency digital signal is blended on the power transmission line of electric power transmission network 2 by socket.
At broadcasting and TV front-end server end, first high pass filter 13 in first coupling unit 1 is by the socket received RF digital signal on the power transmission line, and this rf digital signal carried out further Filtering Processing, after the electrical isolation by 12 realizations of first coupling transformer and electric power signal, by coaxial cable this rf digital signal is passed back on the front-end server afterwards by first coaxial cable interface 11.
The utility model embodiment also provides a kind of rf digital signal access device, and this device comprises first coupling unit, and this first coupling unit adopts aforesaid first coupling unit.
The utility model embodiment also provides a kind of rf digital signal access device, and this device comprises second coupling unit, and this second coupling unit adopts aforesaid second coupling unit.
The rf digital signal transmission system that the utility model embodiment provides is coupled to electric power transmission network by first coupling unit with the rf digital signal that front-end server sends, and by second coupling unit with the rf digital signal reverse coupled on the electric power transmission network to the digital signal access device; Perhaps the rf digital signal that the digital signal access device returns is coupled to electric power transmission network by second coupling unit, and pass through first coupling unit rf digital signal reverse coupled that electric power transmission network returns is arrived front-end server, because being coupled to electric power transmission network, rf digital signal realizes the rf digital signal transmission, when carrying out house wiring, need not the rf digital signal independent wiring, thereby simplified wiring space, and saved great amount of manpower and coaxial cable material and wire rod expense.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. a rf digital signal transmission system is characterized in that, described system comprises:
The electric power transmission network of transferring electric power signal;
First coupling unit that the rf digital signal that front-end server is sent is coupled and inserts described electric power transmission network or the rf digital signal reverse coupled of described electric power transmission network passback is inserted front-end server, one end of described first coupling unit connects front-end server by coaxial cable, and the socket on the other end of described first coupling unit and the described electric power transmission network is pegged graft; And
Rf digital signal reverse coupled incoming digital signal access device that described electric power transmission network is sent or second coupling unit that the rf digital signal coupling of digital signal access device passback is inserted described electric power transmission network, socket on one end of described second coupling unit and the digital signal access device is pegged graft or is connected the socket grafting on the other end of described second coupling unit and the described electric power transmission network by data wire with socket on the digital signal access device.
2. rf digital signal transmission system as claimed in claim 1 is characterized in that, described first coupling unit comprises:
First coaxial cable interface that connects front-end server by coaxial cable;
With first high pass filter that the socket on the described electric power transmission network is pegged graft, described first high pass filter carries out Filtering Processing to the rf digital signal via described first coaxial cable interface input; And
Be connected in first coupling transformer between described first coaxial cable interface and first high pass filter, described first coupling transformer is 1: 1 a coupling transformer.
3. rf digital signal transmission system as claimed in claim 1 is characterized in that, described second coupling unit comprises:
Second coaxial cable interface of pegging graft with socket on the digital signal access device or being connected with socket on the digital signal access device by data wire;
Second coupling transformer that connects described second coaxial cable interface and described electric power transmission network, the socket on described second coupling transformer and the described electric power transmission network is pegged graft, and described second coupling transformer is 1: 1 a coupling transformer.
4. rf digital signal transmission system as claimed in claim 3, it is characterized in that, described second coupling unit also comprises second high pass filter, described second coupling transformer is connected with described electric power transmission network by described second high pass filter, and the socket on described second high pass filter and the described electric power transmission network is pegged graft.
5. as each described rf digital signal transmission system of claim 1 to 4, it is characterized in that described digital signal access device is set-top box, cable modem or Ethernet coaxial network access device.
6. a rf digital signal access device is characterized in that, described device comprises:
First coupling unit that the rf digital signal that front-end server is sent is coupled and inserts electric power transmission network or the rf digital signal reverse coupled of electric power transmission network passback is inserted front-end server, one end of described first coupling unit connects front-end server by coaxial cable, and the other end of described first coupling unit and the socket on the electric power transmission network are pegged graft.
7. rf digital signal access device as claimed in claim 6 is characterized in that, described first coupling unit comprises:
First coaxial cable interface that connects front-end server by coaxial cable;
With first high pass filter that the socket on the electric power transmission network is pegged graft, described first high pass filter carries out Filtering Processing to the rf digital signal via described first coaxial cable interface input; And
Be connected in first coupling transformer between described first coaxial cable interface and first high pass filter, described first coupling transformer is 1: 1 a coupling transformer.
8. a rf digital signal access device is characterized in that, described device comprises:
Rf digital signal reverse coupled incoming digital signal access device that electric power transmission network is sent or second coupling unit that the rf digital signal coupling of digital signal access device passback is inserted electric power transmission network, socket on one end of described second coupling unit and the digital signal access device is pegged graft or is connected the other end of described second coupling unit and the grafting of the socket on the electric power transmission network by data wire with socket on the digital signal access device.
9. rf digital signal access device as claimed in claim 8 is characterized in that, described second coupling unit comprises:
Second coaxial cable interface of pegging graft with socket on the digital signal access device or being connected with socket on the digital signal access device by data wire;
Second coupling transformer that connects described second coaxial cable interface and electric power transmission network, the socket on described second coupling transformer and the electric power transmission network is pegged graft, and described second coupling transformer is 1: 1 a coupling transformer.
10. rf digital signal access device as claimed in claim 9, it is characterized in that, described second coupling unit also comprises second high pass filter, described second coupling transformer is connected with electric power transmission network by described second high pass filter, and the socket on described second high pass filter and the electric power transmission network is pegged graft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200566596U CN201601672U (en) | 2010-01-18 | 2010-01-18 | Radio-frequency digital signal transmission system and radio-frequency digital signal access device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200566596U CN201601672U (en) | 2010-01-18 | 2010-01-18 | Radio-frequency digital signal transmission system and radio-frequency digital signal access device |
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| CN201601672U true CN201601672U (en) | 2010-10-06 |
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| CN2010200566596U Expired - Fee Related CN201601672U (en) | 2010-01-18 | 2010-01-18 | Radio-frequency digital signal transmission system and radio-frequency digital signal access device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102186047A (en) * | 2011-04-25 | 2011-09-14 | 中兴通讯股份有限公司 | Coaxial-cable-based Internet protocol television (IPTV) home network system and data processing method thereof |
| CN102307380A (en) * | 2011-03-25 | 2012-01-04 | 杭州再灵电子科技有限公司 | Automatic power control device for high-frequency radio frequency module |
-
2010
- 2010-01-18 CN CN2010200566596U patent/CN201601672U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307380A (en) * | 2011-03-25 | 2012-01-04 | 杭州再灵电子科技有限公司 | Automatic power control device for high-frequency radio frequency module |
| CN102186047A (en) * | 2011-04-25 | 2011-09-14 | 中兴通讯股份有限公司 | Coaxial-cable-based Internet protocol television (IPTV) home network system and data processing method thereof |
| WO2012146108A1 (en) * | 2011-04-25 | 2012-11-01 | 中兴通讯股份有限公司 | Iptv home network system based on coaxial cables and data processing method therefor |
| CN102186047B (en) * | 2011-04-25 | 2015-06-03 | 中兴通讯股份有限公司 | Coaxial-cable-based Internet protocol television (IPTV) home network system and data processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20150118 |
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| EXPY | Termination of patent right or utility model |