CN217183389U - Automatic switching system for main broadcasting and standby broadcasting of satellite earth station - Google Patents
Automatic switching system for main broadcasting and standby broadcasting of satellite earth station Download PDFInfo
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- CN217183389U CN217183389U CN202220668844.3U CN202220668844U CN217183389U CN 217183389 U CN217183389 U CN 217183389U CN 202220668844 U CN202220668844 U CN 202220668844U CN 217183389 U CN217183389 U CN 217183389U
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- 230000009286 beneficial effect Effects 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The utility model relates to a satellite earth station broadcasts and switches technical field, especially relates to an automatic switching system is broadcast to satellite earth station activestandby. The technical scheme comprises the following steps: the utility model provides an automatic switching system is broadcast to satellite earth station activestandby, includes that the satellite accepts unit, automatic switch, manual switch and waveguide change over switch, and the satellite accepts the unit and passes through photoelectric coupler and automatic switch signal connection, and automatic switch passes through signal line and manual switch signal connection, and manual switch passes through signal line and waveguide change over switch signal connection. The utility model has the advantages of simple system, low cost, accurate judgment, rapid switching and the like.
Description
Technical Field
The utility model relates to a satellite earth station broadcasts and switches technical field, concretely relates to satellite earth station activestandby broadcasts automatic switching system.
Background
The satellite earth station generally has two sets of broadcasting systems, the switching between the systems is realized by connecting waveguide switch switches of the two systems, the traditional switching mode is realized by manually sending instructions to a waveguide switch controller, the reaction time of manual switching is influenced by various factors, generally, 1 minute or more is needed from fault judgment to reaction, and the requirement that the interruption of safe broadcasting is not more than 3 seconds (key broadcasting time interval) is difficult to guarantee. The failure state of the preceding stage individual broadcasting equipment is collected through a network management system, automatic switching is realized, the time delay for judging the equipment failure by the network management system is long, especially, the equipment power failure cannot react at once, and the protection range has limitation.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automatic switching system is broadcast to satellite earth station activestandby has solved above technical problem.
The utility model provides a scheme as follows of above-mentioned technical problem:
the utility model provides an automatic switching system is broadcast to satellite earth station activestandby, includes that the satellite accepts unit, automatic switch, manual switch and waveguide change over switch, and the satellite accepts the unit and passes through photoelectric coupler and automatic switch signal connection, and automatic switch passes through signal line and manual switch signal connection, and manual switch passes through signal line and waveguide change over switch signal connection.
The utility model has the advantages that: the satellite receiver set is provided with four satellite receivers, if the four satellite receivers simultaneously have black screens, the fact that the broadcasting stop is caused by the fact that the equipment of the main broadcasting system fails can be determined, the satellite receiver of the type is provided with a test point TP4 which can reflect whether a received signal is normal or not, when a decoded image of the receiver is normal, the test point is at a low level, when the received signal of the receiver is the black screen (signal interruption), the test point is at a high level, when the broadcasting stop occurs due to the failure of the main broadcasting system, the signals of the test points of the four satellite receivers are judged by a logic circuit to be used as a reliable basis for judging the broadcasting stop, and the triggering of the main broadcasting wave guide switch and the spare broadcasting wave guide switch is realized according to the basis.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the satellite receiving unit is provided with four satellite receivers, three of the satellite receivers respectively receive signals of antennas with the apertures of 12 meters, 9 meters and 3 meters, and the other self-loop receiver is connected to an uplink monitoring point of a main broadcasting system klystron power amplifier.
The beneficial effect of adopting the further scheme is that: one satellite receiver in the system corresponds to a self-loop monitoring point of an uplink broadcasting link of a satellite earth station and is positioned behind a klystron power amplifier, the other three satellite receivers correspond to receiving antennas with different calibers, the four receivers are used for decoding and monitoring programs and have the function of collecting and judging video code streams, alarm signal lines of the four receivers are connected to an automatic switcher, the automatic switcher sends a switching action instruction to a manual switcher after judging the interruption of a main broadcasting system signal, the manual switcher controls a waveguide switch to achieve the switching from the main broadcasting system to a standby broadcasting system, and therefore the purpose that the alarm is quickly and accurately sent out when the main broadcasting system breaks down and the standby broadcasting system is switched is achieved.
Furthermore, four satellite receivers of the satellite receiving unit are all provided with a test point TP4, when the decoded images of the receivers are normal, the test point is at a low level, and when the received signals of the receivers are interrupted, the test point is at a high level.
The beneficial effect of adopting the further scheme is that: when the broadcasting of the main broadcasting system is interrupted due to a fault, signals of the test points of 4 receivers are used as a reliable basis for judging the broadcasting stop through the judgment of a logic circuit, and the main broadcasting waveguide switch and the standby broadcasting waveguide switch are triggered according to the basis.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention.
In the drawings:
FIG. 1 is a schematic view of the connection of the apparatus of the present invention;
fig. 2 is a schematic connection diagram of the broadcasting system of the present invention;
fig. 3 is a schematic diagram of a circuit of the automatic switch of the present invention.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, the present invention provides an embodiment:
example one
The utility model provides a satellite earth station is automatic switching system of broadcasting from other standers, includes satellite receiver unit, automatic switch, manual switch and waveguide change over switch, and the satellite receiver unit passes through photoelectric coupler and automatic switch signal connection, realizes the electrical isolation between satellite receiver and the automatic switch through photoelectric coupler, and the satellite receiver unit is equipped with four satellite receiver altogether, and satellite receiver's CPU model is LSI 2005.
Four satellite receivers of the satellite receiving set are all provided with a test point TP4, when the decoded images of the receivers are normal, the test point is at a low level, when the signals received by the receivers are interrupted, the test point is at a high level, three of the satellite receivers respectively receive signals of antennas with the apertures of 12 meters, 9 meters and 3 meters, the other self-loop receiver is connected to an up monitoring point of a main broadcasting system klystron power amplifier, an automatic switcher is in signal connection with a manual switcher through a signal line, the automatic switcher is a four-input NOR gate and is respectively at A, B, C, D four ends, the manual switcher is in signal connection with a waveguide switcher through a signal line, when 4 receivers output normal images, a port of TP4 outputs 4 paths of low levels, at the moment, a photoelectric coupler is cut off, four input ends A, B, C, D high levels of a CD4002, green LEDs emit light to indicate that the signals are normal, and outputs the low levels after passing through the NOR gates, when the switch K1 is closed, the alarm buzzer is silent, the relay is not attracted, and no switching signal is output.
Example two
The utility model provides a satellite earth station is automatic switching system of broadcasting from other standers, includes satellite receiver unit, automatic switch, manual switch and waveguide change over switch, and the satellite receiver unit passes through photoelectric coupler and automatic switch signal connection, realizes the electrical isolation between satellite receiver and the automatic switch through photoelectric coupler, and the satellite receiver unit is equipped with four satellite receiver altogether, and satellite receiver's CPU model is LSI 2005.
The four satellite receivers of the satellite receiving set are all provided with a test point TP4, when the decoded images of the receivers are normal, the test point is at a low level, when the signals received by the receivers are interrupted, the test point is at a high level, three of the satellite receivers respectively receive signals of antennas with the calibers of 12 meters, 9 meters and 3 meters, the other self-loop receiver is connected to an uplink monitoring point of a main broadcasting system klystron power amplifier, an automatic switcher is in signal connection with a manual switcher through a signal line, the automatic switcher is a four-input NOR gate and is respectively at A, B, C, D four ends, the manual switcher is in signal connection with a waveguide switcher through a signal line, when a certain receiver (such as an A path) is in a black screen due to various reasons such as crash and the like, the TP4 of the A path receiver is changed into a high level, an optical coupler is closed, a red LED is on, a green LED is off, and an input end of the A input end is at a low level. However, because the other 3 receivers are normal, the B, C, D end is still at high level, the output is still unchanged through the judgment of the NOR gate, no alarm is given, no switching instruction is output externally, and the red LED is only used as a fault reminder when being lightened.
EXAMPLE III
The utility model provides a satellite earth station is automatic switching system of broadcasting from other standers, includes satellite receiver unit, automatic switch, manual switch and waveguide change over switch, and the satellite receiver unit passes through photoelectric coupler and automatic switch signal connection, realizes the electrical isolation between satellite receiver and the automatic switch through photoelectric coupler, and the satellite receiver unit is equipped with four satellite receiver altogether, and satellite receiver's CPU model is LSI 2005.
Four satellite receivers of the satellite receiving set are all provided with a test point TP4, when the decoded images of the receivers are normal, the test point is at a low level, when the signals received by the receivers are interrupted, the test point is at a high level, three of the satellite receivers respectively receive signals of antennas with the calibers of 12 meters, 9 meters and 3 meters, the other self-loop receiver is connected to an upstream monitoring point of a main broadcasting system klystron power amplifier, an automatic switcher is in signal connection with a manual switcher through a signal line, the automatic switcher is a four-input NOR gate and is respectively at A, B, C, D four ends, the manual switcher is in signal connection with a waveguide switcher through a signal line, when the 4 receivers all have a black screen, the TP4 points of the 4 paths of receivers simultaneously become a high level, four paths of optical couplers are simultaneously closed, A, B, C, D simultaneously have a low level, the high level is output after passing through a NOR gate circuit, all green lights become red lights, at the moment, the triode DG1 and the triode DG2 are simultaneously conducted, the buzzer gives out an alarm sound, the relay is instantly attracted, the main broadcasting system is automatically switched to the standby broadcasting system, and the purpose of quick switching is achieved. The alarm automatically disappears when the program is restored.
Example four
The utility model provides a satellite earth station is automatic switching system of broadcasting from other standers, includes satellite receiver unit, automatic switch, manual switch and waveguide change over switch, and the satellite receiver unit passes through photoelectric coupler and automatic switch signal connection, realizes the electrical isolation between satellite receiver and the automatic switch through photoelectric coupler, and the satellite receiver unit is equipped with four satellite receiver altogether, and satellite receiver's CPU model is LSI 2005.
Four satellite receivers of the satellite receiving set are all provided with a test point TP4, when the receiver decodes images normally, the test point is at a low level, when the receiver receives signals and is interrupted, the test point is at a high level, three of the satellite receivers respectively receive signals of antennas with the calibers of 12 meters, 9 meters and 3 meters, the other self-loop receiver is connected to an uplink monitoring point of a main broadcasting system klystron power amplifier, an automatic switcher is in signal connection with a manual switcher through a signal line, the automatic switcher is a four-input NOR gate and is respectively at A, B, C, D four ends, the manual switcher is in signal connection with a waveguide switcher through a signal line, 4 receivers judge that the signal interruption has 3-second delay, if the signal is recovered within 3 seconds, an alarm cannot be given and the reverse machine cannot be switched, and the false operation of switching the reverse machine caused by instantaneous signal flash-break can be avoided.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.
Claims (3)
1. A satellite earth station main broadcasting and standby broadcasting automatic switching system is characterized in that: including satellite receiver group, automatic switch, manual switch and waveguide change over switch, the satellite receiver group passes through photoelectric coupler and automatic switch signal connection, and automatic switch passes through signal line and manual switch signal connection, and manual switch passes through signal line and waveguide change over switch signal connection.
2. The automatic switching system for main broadcasting and standby broadcasting of satellite earth stations according to claim 1, characterized in that: the satellite receiving unit is provided with four satellite receivers, three satellite receivers receive signals of antennas with apertures of 12 meters, 9 meters and 3 meters respectively, and the other self-loop receiver is connected to an uplink monitoring point of a main broadcasting system klystron power amplifier.
3. The automatic switching system for main broadcasting and standby broadcasting of satellite earth stations according to claim 2, characterized in that: the four satellite receivers of the satellite receiving unit are all provided with a test point TP4, when the decoded images of the receivers are normal, the test point is at a low level, and when the signals received by the receivers are interrupted, the test point is at a high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220668844.3U CN217183389U (en) | 2022-03-25 | 2022-03-25 | Automatic switching system for main broadcasting and standby broadcasting of satellite earth station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220668844.3U CN217183389U (en) | 2022-03-25 | 2022-03-25 | Automatic switching system for main broadcasting and standby broadcasting of satellite earth station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217183389U true CN217183389U (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220668844.3U Expired - Fee Related CN217183389U (en) | 2022-03-25 | 2022-03-25 | Automatic switching system for main broadcasting and standby broadcasting of satellite earth station |
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| Country | Link |
|---|---|
| CN (1) | CN217183389U (en) |
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2022
- 2022-03-25 CN CN202220668844.3U patent/CN217183389U/en not_active Expired - Fee Related
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Granted publication date: 20220812 |