CN103595975A - Signal transmission and distribution multiplexer - Google Patents
Signal transmission and distribution multiplexer Download PDFInfo
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- CN103595975A CN103595975A CN201210289876.3A CN201210289876A CN103595975A CN 103595975 A CN103595975 A CN 103595975A CN 201210289876 A CN201210289876 A CN 201210289876A CN 103595975 A CN103595975 A CN 103595975A
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- multiplexer
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Abstract
The invention is suitable to be used in the field of satellite broadcast, and provides a signal transmission and distribution multiplexer. The signal transmission and distribution multiplexer comprises a plurality of transmission lines transmitting power and signals, and each transmission line is provided with a switch diode controlling breakover of the transmission line, and also comprises control circuits controlling breakover of the switch diodes. The signal transmission and distribution multiplexer provided by an embodiment enables switchover of a power supply and transmission signals and transmits power. The multiplexer can be used to receive television satellite signals from a plurality of receivers and a plurality of satellites.
Description
Technical field
The invention belongs to satellite broadcasting field, relate in particular to a kind of signal transmission and distribute multiplexer.
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Background technology
Telstar signal is television receiver via satellite, as Set Top Box receives, and in actual mechanical process, needs a plurality of telstar signals to be sent in a plurality of Set Top Box, and this just need to realize a plurality of satellites simultaneously to a plurality of Set Top Box transmission signals.
Traditional circuit switching switch as shown in Figure 1, control as voltage 13V or 18V switched voltage by the 7812 voltage stabilizing triodes of usining, if 18V is via 7812 voltage stabilizing triode voltage 18V end outputs, if 7812 end of the 13V through voltage stabilizing triode outputs of 3V.Transmission line adopts switch diode to control the Push And Release of transmission line, controls the voltage of diode and is controlled by control circuit, transmission line conducting when diode conducting, otherwise not conducting of transmission line when not conducting of diode.
Traditional circuit switching can only be realized voltage control and can not realize the switching of transmission signal, and power supply can not transmit, and now, the required voltage of the low noise amplifying frequency demultiplier of satellite need to be realized by additional power source.
Summary of the invention
The embodiment of the present invention provides a kind of signal transmission to distribute multiplexer, is intended to solve traditional circuit switching and can not realizes transmission signal switching, and can not transmit the problem of power supply.
The embodiment of the present invention is achieved in that a kind of signal transmission distributes multiplexer, comprising:
Many the transmission lines that transmit power supply and signal, all have a switch diode of controlling this transmission line conducting on every transmission lines; And
Control the control circuit of described switch diode conducting.
The signal transmission that the embodiment of the present invention provides distributes multiplexer can realize the switching of power supply and transmission signal and transmit power supply, can be used for the reception of the telstar signal of many receivers, a plurality of satellites.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of realizing that in prior art, traditional circuit is switched;
Fig. 2 is the structure chart that the signal transmission that provides of the embodiment of the present invention distributes multiplexer;
Fig. 3 is structural representation during signal transmission between a plurality of satellites of providing of the embodiment of the present invention and a plurality of receiver;
Fig. 4 is the structure chart of the control circuit that provides of the embodiment of the present invention;
Fig. 5 is the structure chart of the integrated circuit that provides of the embodiment of the present invention;
Fig. 6 is that the signal transmission that the embodiment of the present invention provides distributes multiplexer use scenes schematic diagram.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
In the present invention, using control integration circuit as control switching circuit, realize the control to power supply and transmission signal, can select different signal transmission lines according to difference output demand, transmit power supply simultaneously.
As shown in Figure 2, the signal transmission that the embodiment of the present invention provides distributes the structure of multiplexer, for convenience of description, only shows the part relevant to the embodiment of the present invention.
Signal transmission distributes multiplexer to comprise plurality of transmission lines 11, all has a switch diode 12 of controlling this transmission line conducting on every transmission lines, and the control circuit 14 of control switch diode 12 conductings.
As one embodiment of the present of invention, transmission line 11 can be 0KHz/13V, 22KHz/13V, 0KHz/18V, and tetra-of 22KHz/18V, can control 13V or 18V electrical source exchange simultaneously, and the transmission signal of 0KHz, 22KHz switches.
In embodiments of the present invention, transmission line 11 can configure different quantity according to different power supply or signal output demands, such as can be 4,8,16 etc.
Each switch diode is free-standing voltage, and each transmission lines is separate, the bad circuit working that can not have influence on other channel of uniline assembly.
The conducting state of switch diode 12 provides control voltage to control by control circuit 14, controls the conducting of transmission line 11 by the conducting of switch diode 12, when 12 conducting of switch diode, and the transmission line conducting being attached thereto.
The signal that control circuit 14 receives from receiver, according to the signal output receiving and 13V/0KHz, 13V/22KHz, 18V/0KHz, or the control voltage that 18V/22KHz is corresponding, control conducting voltage as switch diode 12, and then select corresponding transmission line, and by power delivery to far-end, for the low noise amplifying frequency demultiplier of satellite provides voltage.
As a preferred embodiment of the present invention, at signal transmission, distribute in multiplexer and increase signal amplifier 13, signal amplifier 13 is connected between satellite receiver and transmission line, to signal transmission, distribute the signal of multiplexer output to amplify, make signal transmission distribute the signal strength of multiplexer output to equate with the signal strength of input, the loss of compensating signature in transmission, is down to minimum by signal loss.
During work, by receiver, given power supply and the signal of required 13V/0KHz, 13V/22KHz, 18V/0KHz or 18V/22KHz, control circuit 14 is controlled voltage according to required power supply and signal output, the conducting of control switch diode 12, selects in transmission line 11 transmission route of corresponding power supply and signal then.Wherein, transmission signal output after signal amplifier 13 amplifies.
While realizing the signal transmission between a plurality of satellites and a plurality of receiver, can adopt a plurality of signal transmissions to distribute multiplexers, it is example that Fig. 3 be take six receivers of REC1 ~ REC6, can realize the multiple switching of power supply and the transmission signal of a plurality of inputs, a plurality of outputs.
As shown in Figure 4, control circuit 14 comprises integrated circuit 21, and with the many groups switch control unit 21 being connected with integrated circuit 21, each control unit comprises a diode and an electric crystal.
Wherein, the base stage of electric crystal is connected with control circuit 14, and emitter connects input, and diode is connected between the collector electrode and output of electric crystal.
Diode is controlled the conducting of transmission line, line conduction under effective voltage state, otherwise not conducting.Electric crystal is as a kind of variable power switch, for amplification, switch, voltage stabilizing function.
In control circuit 14, integrated circuit 21 and electric crystal are as voltage switch, controlling 13V or 18V voltage switches, diode is controlled the switching of transmission signal, signal transmission line is synchronoused working with voltage control circuit, can realize the multiple switching of the outputs such as 13V/0KHz, 13V/22KHz, 18V/0KHz, 18V/22KHz.
The structure that Fig. 5 is the integrated circuit that shows the embodiment of the present invention and provide, for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
Amplifying circuit 211 amplifies the satellite-signal of 22KHZ.
Port LBN1, LBN2, LBN3 and the LBN4 of integrated circuit 21 is connected with the low noise amplifying frequency demultiplier of satellite, and the signal of processing through integrated circuit 21 is transferred to receiver through amplification, frequency reducing as satellite-signal.
During work, hypothesis need to be selected 22KHz/13V circuit, and voltage comparator circuit 216 is through alternative 13V voltage circuit, the not conducting of 18V voltage circuit.Oscillator circuit 215 produces 22KHZ source signal, makes it to drive the low noise amplifying frequency demultiplier of satellite, then driven and select 22KHz/13V circuit with drive circuit 214 by logical circuit 213 through amplifying circuit 211, shaping circuit 212 after amplifying shaping.
In embodiments of the present invention, integrated circuit 21 adopts microwave signal transmission separated with power supply, terminal again the mode of combination by power delivery to far-end, for the low noise amplifying frequency demultiplier of satellite provides voltage, do not need additional power source.
In the embodiment of the present invention, at signal transmission, distribute the input of multiplexer that microwave signal is just given separated with power signal, through the control of 0KHz/13V, 22KHz/13V, 0KHz/18V, 22KHz/18V power supply and transmission signal with switch after at output, give again combination, transmit microwave signal and power supply simultaneously.
As shown in Figure 6, through signal transmission, distribute multiplexer 31 that the television signal of satellite 32 is transferred to satellite receiver 33, satellite receiver 33 gives 13V/0KHz, 13V/22KHz, 18V/0KHz, or the voltage of 18V/22KHz and signal, signal transmission distributes multiplexer 31 to select needed voltage control circuit and signal transmission circuit according to this voltage and signal, and then voltage is reached to low-noise amplifier, and by signal transmission to satellite receiver 33, signal loss is down to minimum, can the in the situation that of many receivers, a plurality of satellite, uses.
The signal transmission that the embodiment of the present invention provides distributes multiplexer can realize the switching of power supply and transmission signal and transmit power supply, can be used for the reception of the telstar signal of many receivers, a plurality of satellites.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. signal transmission distributes a multiplexer, it is characterized in that, described signal transmission distributes multiplexer to comprise:
Many the transmission lines that transmit power supply and signal, all have a switch diode of controlling this transmission line conducting on every transmission lines; And
Control the control circuit of described switch diode conducting.
2. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that, described signal transmission distributes multiplexer also to comprise:
Be connected between satellite receiver and described transmission line the signal amplifier that distributes the signal of multiplexer output to amplify to signal transmission.
3. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that, each switch diode is free-standing voltage.
4. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that, described signal transmission distributes multiplexer to comprise 13V/0KHz, 13V/22KHz, 18V/0KHz 18V/22KHz tetra-transmission lines.
5. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that, described control circuit comprises:
Integrated circuit; And
The many groups switch control unit being connected with described integrated circuit.
6. signal transmission as claimed in claim 5 distributes multiplexer, it is characterized in that, described switch control unit comprises:
Base stage is connected with described integrated circuit, and emitter connects the polycrystal of voltage input end; And
Be connected to the diode between described multicrystal collector electrode and output.
7. signal transmission as claimed in claim 5 distributes multiplexer, it is characterized in that, described control circuit comprises:
Amplify the amplifying circuit of satellite-signal;
Be connected the shaping circuit to the signal shaping from amplifying circuit with described amplifying circuit;
The logical circuit being connected with described shaping circuit;
The drive circuit being connected with described logical circuit;
Produce the oscillator circuit of source signal;
Output is as the voltage comparator circuit of 13V and 18V comparison reference voltage; And
The port being connected with the low noise amplifying frequency demultiplier of satellite.
8. signal transmission as claimed in claim 1 distributes multiplexer, it is characterized in that, described integrated circuit adopts microwave signal transmission separated with power supply, terminal again the mode of combination by power delivery to far-end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289876.3A CN103595975A (en) | 2012-08-15 | 2012-08-15 | Signal transmission and distribution multiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289876.3A CN103595975A (en) | 2012-08-15 | 2012-08-15 | Signal transmission and distribution multiplexer |
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| Publication Number | Publication Date |
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| CN103595975A true CN103595975A (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210289876.3A Pending CN103595975A (en) | 2012-08-15 | 2012-08-15 | Signal transmission and distribution multiplexer |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431789A (en) * | 2002-01-07 | 2003-07-23 | 夏普公司 | Low power consumption satellite broadcasting and receiving converter |
| CN1497782A (en) * | 2002-10-17 | 2004-05-19 | ������������ʽ���� | Satellite broadcast receiver for reducing power consumption |
| US20060154602A1 (en) * | 2005-01-11 | 2006-07-13 | Samsung Electronics Co., Ltd. | Satellite signal receiving system |
| CN202183823U (en) * | 2011-07-28 | 2012-04-04 | 珠海市肯普电子科技有限公司 | Environment-friendly energy-saving outdoor multi-way switch |
| CN102523400A (en) * | 2011-12-23 | 2012-06-27 | 苏州华芯微电子股份有限公司 | Satellite receiving control integrated circuit |
| CN202841391U (en) * | 2012-08-15 | 2013-03-27 | 珠海市百音电子科技有限公司 | Signal-transmission and distribution multiplexer |
-
2012
- 2012-08-15 CN CN201210289876.3A patent/CN103595975A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431789A (en) * | 2002-01-07 | 2003-07-23 | 夏普公司 | Low power consumption satellite broadcasting and receiving converter |
| CN1497782A (en) * | 2002-10-17 | 2004-05-19 | ������������ʽ���� | Satellite broadcast receiver for reducing power consumption |
| US20060154602A1 (en) * | 2005-01-11 | 2006-07-13 | Samsung Electronics Co., Ltd. | Satellite signal receiving system |
| CN202183823U (en) * | 2011-07-28 | 2012-04-04 | 珠海市肯普电子科技有限公司 | Environment-friendly energy-saving outdoor multi-way switch |
| CN102523400A (en) * | 2011-12-23 | 2012-06-27 | 苏州华芯微电子股份有限公司 | Satellite receiving control integrated circuit |
| CN202841391U (en) * | 2012-08-15 | 2013-03-27 | 珠海市百音电子科技有限公司 | Signal-transmission and distribution multiplexer |
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Application publication date: 20140219 |