CN201937589U - Satellite switch - Google Patents
Satellite switch Download PDFInfo
- Publication number
- CN201937589U CN201937589U CN2011200010236U CN201120001023U CN201937589U CN 201937589 U CN201937589 U CN 201937589U CN 2011200010236 U CN2011200010236 U CN 2011200010236U CN 201120001023 U CN201120001023 U CN 201120001023U CN 201937589 U CN201937589 U CN 201937589U
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- satellite
- signal
- input terminal
- switch
- lead
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- Expired - Lifetime
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- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The utility model provides a satellite switch suitable for residential quarters and home, in order to better distribute and transmit signals and achieve the purpose of sharing an antenna system by a residential quarter. The satellite switch comprises a power supply, at least two satellite signal input terminals, a plurality of selective switches for switching satellite signals, a plurality of additional input terminals, a plurality of mixers for mixing signals, a plurality of distributors for distributing signals and at least two output terminals, wherein one set of signal transmission system is formed by one output terminal, one satellite signal input terminal and one additional input terminal; in each set of signal transmission system, a signal inputted by the satellite signal input terminal is selected by the selective switch and then is mixed with signals of the additional input terminal by the mixer, and at last is outputted to the output terminal; and the same input signals of the signal transmission systems corresponding to different output terminals are distributed by the distributor.
Description
Technical field
The utility model belongs to electronic technology field, specially refers to a kind of satellite switch that is used for the signal transmission, distributes.
Background technology
Satellite TV broadcast system is to utilize the tuner C frequency range that satellite antenna is received or the satellite-signal of Ku frequency range to drop to 950～2150 megacycle regions, re-use the satellite switchgear with the satellite receiver of signal allocation to each user, the TV programme of watching satellite broadcasting in order to each user.Typical satellite switch is the same with tuner, and the 13V/18V and the 22KHz that can utilize satellite receiver to send select four kinds of unlike signals of different frequency range or different polarization to originate.Because the number of users that tuner can provide is seldom, thus must utilize the satellite switchgear to amplify and distributing signal offers in same sub-district or the building more user and uses, to reach the purpose of sub-district Master Antenna TV.
In order to reach above requirement, general satellite switch also can add the distribution of one road terrestrial television signal, and frequency range is 47～862 megahertzes.In the system of reality installs, several different signals have also been comprised the frequency range of terrestrial television frequency from 47 to 862 megahertzes, using the satellite switch also will all Different Ground TV signal be lumped together in the past with some blenders, system could use, and therefore the satellite switch of traditional function singleness is not suitable in the sub-district and family's use.
Summary of the invention
The purpose of this utility model is the satellite switch that proposes a kind of suitable cell and family expenses, to distribute better and transmission signals, reaches the purpose of sub-district Master Antenna TV.
Satellite switch of the present utility model comprises power supply, at least two satellite-signal input terminals, a plurality of selector switch of switch satellite signal, a plurality of additional input terminal, a plurality of blender of mixed signal, a plurality of splitter and at least two lead-out terminals that are used for signal allocation of being used for of being used for; All form a cover signal transmission system between each lead-out terminal and each satellite-signal input terminal, each additional input terminal, in every cover signal transmission system, the signal of each satellite-signal input terminal input is through after the selection of selector switch, mix by the signal of blender again, export lead-out terminal at last to each additional input terminal; Identical input signal between the pairing signal transmission system of different lead-out terminals distributes by splitter.
The corresponding user of each lead-out terminal, each is with obtaining the satellite-signal of satellite-signal input terminal transmission and the additional signal of each additional input terminal transmission simultaneously by the blender in the signal transmission system of correspondence per family, in concrete enforcement, the frequency of each road signal must be staggered, interfere with each other preventing, the satellite-signal of wherein different satellite-signal input terminals transmission switches selection by selector switch.
Specifically, described additional input terminal comprises terrestrial television input terminal, monitoring image input terminal, FM radio input terminal and the audio-visual input terminal of middle control.The user just can obtain the middle control video-audio signal that control department sends in one road satellite TV signal, one road terrestrial television signal, one tunnel monitoring signal of video signal, one road FM radio signal, the route simultaneously like this, and the signal kinds of more traditional satellite switch has increased a lot.The user is as long as the needs of basis oneself link to each other audio-visual devices such as set top box for satellite receiver, FM receiver, television set, digitized video receiver with lead-out terminal.
Further, in above-mentioned satellite switch, described each lead-out terminal also links to each other with the audio-visual input terminal of middle control by an infrared filter.Each transmits signals to infrared receiver with using a teleswitch per family like this, and then utilizes the satellite switch to be sent to the middle control audio and video player of middle control department, thereby realizes the purpose of the middle control audio and video player of control department in the Remote.
In order to keep away the only unexpected short circuit of user, each lead-out terminal is connected with short-circuit protection circuit, prevents that product from burning because of short circuit.Short-circuit protection circuit has various ways, and is disclosed use already on various electronic products, repeats no more herein.
For preventing signal attenuation, cause and receive difference between the different user, the output of described selector switch links to each other with the input of blender after through an amplifier again, and certain different lead-out terminal corresponding amplifier gains may be different, can debug according to actual conditions.In like manner, all be connected with amplifier on the signal transmission pathway of described each satellite-signal input terminal, additional input terminal.
The empty output of described splitter is connected with build-out resistor, so that impedance matching.
The characteristic that satellite switch of the present utility model is used at family expenses and system, except the due function of satellite switch, the input signal of various different frequency ranges also additionally is provided, and provide the globality of family expenses audio-visual devices and infrared ray control to connect, make this satellite switch more meet sub-district and family expenses.
Description of drawings
Fig. 1 is the schematic diagram of satellite switch of the present utility model.
Embodiment
Describe the utility model in detail below in conjunction with specific embodiments and the drawings.
Embodiment 1:
As shown in Figure 1, the satellite switch of present embodiment comprises power supply 1, a plurality of amplifier 2 that is used for amplifying signal, a plurality of selector switch 3 that is used for the switch satellite signal, a plurality of blender 4 that is used for mixed signal, a plurality of splitter that is used for signal allocation 5, four satellite-signal input terminals, terrestrial television input terminal, monitoring image input terminal, FM radio input terminal, the audio-visual input terminal of control and four lead-out terminals; All form a cover signal transmission system between each lead-out terminal and each satellite-signal input terminal, each additional input terminal, in this signal transmission system, the signal of each satellite-signal input terminal input is through after the selection of selector switch 3, amplify through an amplifier 2 again, and then mix by the signal of blender 4 with each additional input terminal, export lead-out terminal at last to; Identical input signal between the pairing signal transmission system of different lead-out terminals distributes by splitter 2.Each lead-out terminal also links to each other with the audio-visual input terminal of middle control by an infrared filter 6.
In order to keep away the only unexpected short circuit of user, each lead-out terminal is connected with short-circuit protection circuit, prevents that product from burning because of short circuit.Short-circuit protection circuit has various ways, and is disclosed use already on various electronic products, repeats no more (short-circuit protection circuit does not draw among the figure) herein.
For preventing signal attenuation, cause and receive difference between the different user, all be connected with amplifier 2 on the signal transmission pathway of each satellite-signal input, terrestrial television input terminal, monitoring image input terminal, FM radio input terminal, the audio-visual input terminal of middle control.
The empty output of each splitter 5 all is connected with 75 ohm build-out resistor 7, so that impedance matching improves signal quality.
In the present embodiment, the frequency range of four road satellite-signals is 950～2150 megahertzes, receives for satellite television and uses; The frequency range of terrestrial television signal is 47～862 megahertzes, watches use for the full frequency band terrestrial television; The frequency range of monitoring video-audio signal is 470～862 megahertzes, uses for the antitheft CSRC of general family expenses; The frequency range of FM radio signal is 88～108 megahertzes, uses for the FM FM receiver; The frequency range of middle control video-audio signal is 470～862 megahertzes, connects usefulness for the outside audio-visual devices of family expenses, as DVD, DVR etc.; Each lead-out terminal is 3～0 megahertzes to the frequency range of the reverse channel signals of the audio-visual input output of middle control infrared remote-controlled signal, for infrared ray control, and the audio-visual outside audio-visual devices of control in being connected.
Above-mentioned blender 4 adopts the input signal of various different frequency ranges to import respectively, the frequency range of the duty-cycle full frequency band of each frequency range is little a lot, and must to accomplish 25dB at least to the Signal Spacing of other frequency range, so the requirement of each filter in the blender 4 is all very high, Insertion Loss is low in the band, be with outer Insertion Loss at least more than the 40dB, could meet the demands better.
Claims (7)
1. satellite switch is characterized in that comprising power supply, at least two satellite-signal input terminals, a plurality of selector switch of switch satellite signal, a plurality of additional input terminal, a plurality of blender of mixed signal, a plurality of splitter and at least two lead-out terminals that are used for signal allocation of being used for of being used for; All form a cover signal transmission system between each lead-out terminal and each satellite-signal input terminal, each additional input terminal, in every cover signal transmission system, the signal of each satellite-signal input terminal input is through after the selection of selector switch, mix by the signal of blender again, export lead-out terminal at last to each additional input terminal; Identical input signal between the pairing signal transmission system of different lead-out terminals distributes by splitter.
2. satellite switch according to claim 1 is characterized in that described additional input terminal comprises terrestrial television input terminal, monitoring image input terminal, FM radio input terminal and the audio-visual input terminal of middle control.
3. satellite switch according to claim 2 is characterized in that described each lead-out terminal also links to each other with the audio-visual input terminal of middle control by an infrared filter.
4. according to claim 1 or 2 or 3 described satellite switches, it is characterized in that described each lead-out terminal is connected with short-circuit protection circuit.
5. according to claim 1 or 2 or 3 described satellite switches, the output that it is characterized in that described selector switch links to each other with the input of blender after through an amplifier again.
6. according to claim 1 or 2 or 3 described satellite switches, it is characterized in that all being connected with amplifier on the signal transmission pathway of described each satellite-signal input terminal, additional input terminal.
7. according to claim 1 or 2 or 3 described satellite switches, it is characterized in that the empty output of described splitter is connected with build-out resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200010236U CN201937589U (en) | 2011-01-05 | 2011-01-05 | Satellite switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200010236U CN201937589U (en) | 2011-01-05 | 2011-01-05 | Satellite switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201937589U true CN201937589U (en) | 2011-08-17 |
Family
ID=44449093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200010236U Expired - Lifetime CN201937589U (en) | 2011-01-05 | 2011-01-05 | Satellite switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201937589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452554A (en) * | 2016-07-06 | 2017-02-22 | 深圳市安拓浦科技有限公司 | Satellite switch |
-
2011
- 2011-01-05 CN CN2011200010236U patent/CN201937589U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452554A (en) * | 2016-07-06 | 2017-02-22 | 深圳市安拓浦科技有限公司 | Satellite switch |
| CN106452554B (en) * | 2016-07-06 | 2024-01-30 | 深圳市安拓浦科技有限公司 | Satellite switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |