Satellite television signal eight-input one-output circuit board structure

Abstract

The utility model relates to the technical field of signal change-over switches, and discloses a satellite television signal eight-in one-out circuit board structure which comprises a circuit board body. The circuit board body is provided with a one-out-eight switching control circuit, an eight-path signal driving switching circuit used for executing switching of a signal channel and a driving circuit, an eight-path LNB signal input channel circuit used for ensuring signal transmission quality, and eight-path LNB signal input ports used for connecting external LNB signals to the eight-path LNB signal input channel circuit in a one-to-one correspondence mode. The combiner is used for combining the signals; the output port is used for outputting the signals; and the one-out-of-eight switching control circuit is connected with a DiSEqC chip R801 used for identifying different DiSEqC signals from the receiver. The satellite television signal eight-in one-out circuit board structure has the advantages of being simple in circuit board structure, small in signal attenuation, long in transmission distance, high in loading capacity and the like.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of signal switching, in particular to a low-noise down-conversion amplifier, and specifically relates to a satellite television signal eight-in-one-out circuit board structure. BACKGROUND

[0002] The DiSEqC eight-select-all switching switch serially transmits relevant control instructions through the coaxial cable connected with the LNB high-frequency head and the digital signals alternately changed on the 22KHz frequency, selects the response channel according to different instructions, and transmits the satellite programs required by the satellite receiver to the satellite receiver through the coaxial cable.

[0003] The DiSEqC eight-select-all switching switch can be generally used in the connection of the intermediate frequency signals of satellite television signal transmission, the C-band LNB (0.95GHZ-1.75GHZ) and the KU-band LNB (0.95GHZ-2.15GHZ). Since all the satellite signals are quite weak before reaching the antenna and the signal loss is larger with the higher transmission frequency of the coaxial cable, the LNB is required to amplify, and meanwhile the signal-to-noise ratio cannot be deteriorated too much. The working process of the LNB is to amplify the satellite high-frequency signals first, convert the high-frequency satellite signals to the intermediate frequency 950MHZ-2150MHZ (determined by the type of the LNB) by using the local oscillation circuit, and amplify again to facilitate the transmission of the coaxial cable. The DiSEqC eight-select-all switching switch is connected with the input signal satellite of the LNB through the input port and the receiver through the signal output port of the DiSEqC eight-select-all switching switch. After the satellite receiver is set, the DiSEqC eight-select-all switching switch can be connected to different satellite programs, realizes the switching of the input signals of different polarizations and different bands of at least four satellites, and completes that more satellite programs can be watched by using one receiver.

[0004] At present, the common circuit board structure for the DiSEqC eight-select-all switching switch has complex circuit arrangement, complex processing and manufacturing procedures, high labor cost and is not suitable for batch production. CONTENT OF THE NEW TYPE

[0005] The application aims to provide a satellite television signal eight-in-one-out circuit board structure to solve the technical problems in the background art.

[0006] To achieve the above object, the application discloses the following technical scheme: a satellite television signal eight-in-one output circuit board structure, comprising a circuit board body, eight-selection switching control circuit is arranged on the circuit board body, 8-way signal driving switching circuit for executing signal channel and driving circuit switching, 8-way LNB signal input channel circuit for ensuring signal transmission quality, 8-way LNB signal input port for one-to-one corresponding access of external LNB signal to the 8-way LNB signal input channel circuit, a combiner for signal combining, and an output port for outputting signals; the eight-selection switching control circuit is connected with a DiSEqC chip R801 for identifying different DiSEqC signals from a receiver;

[0007] The eight-selection switching control circuit is connected with the 8-way signal driving switching circuit, the 8-way signal driving switching circuit is connected with the 8-way LNB signal input channel circuit one-to-one, the 8-way LNB signal input port is connected with the 8-way LNB signal input channel circuit one-to-one, the second end of the 8-way LNB signal input channel circuit is connected with the first end of the combiner respectively, the second end of the combiner is connected with the output port, and the output port is connected with the DiSEqC chip R801 in control.

[0008] Preferably, the 8-way signal driving switching circuit comprises a first DiSEqC signal driving switching circuit, a second DiSEqC signal driving switching circuit, a third DiSEqC signal driving switching circuit, a fourth DiSEqC signal driving switching circuit, a fifth DiSEqC signal driving switching circuit, a sixth DiSEqC signal driving switching circuit, a seventh DiSEqC signal driving switching circuit, and an eighth DiSEqC signal driving switching circuit;

[0009] The first DiSEqC signal driving switching circuit, the second DiSEqC signal driving switching circuit, the third DiSEqC signal driving switching circuit, and the fourth DiSEqC signal driving switching circuit are arranged in parallel, and the first ends of the first DiSEqC signal driving switching circuit, the second DiSEqC signal driving switching circuit, the third DiSEqC signal driving switching circuit, and the fourth DiSEqC signal driving switching circuit are connected with the eight-selection switching control circuit respectively;

[0010] The fifth DiSEqC signal driving switching circuit, the sixth DiSEqC signal driving switching circuit, the seventh DiSEqC signal driving switching circuit and the eighth DiSEqC signal driving switching circuit are arranged in parallel; and the first ends of the fifth DiSEqC signal driving switching circuit, the sixth DiSEqC signal driving switching circuit, the seventh DiSEqC signal driving switching circuit and the eighth DiSEqC signal driving switching circuit are connected with the eight-way switching control circuit respectively.

[0011] Preferably, the eight-way LNB signal input channel circuit comprises a first LNB signal circuit, a second LNB signal circuit, a third LNB signal circuit, a fourth LNB signal circuit, a fifth LNB signal circuit, a sixth LNB signal circuit, a seventh LNB signal circuit and an eighth LNB signal circuit.

[0012] The first ends of the first LNB signal circuit, the second LNB signal circuit, the third LNB signal circuit, the fourth LNB signal circuit, the fifth LNB signal circuit, the sixth LNB signal circuit, the seventh LNB signal circuit and the eighth LNB signal circuit are connected with the second ends of the first DiSEqC signal driving switching circuit, the second DiSEqC signal driving switching circuit, the third DiSEqC signal driving switching circuit, the fourth DiSEqC signal driving switching circuit, the fifth DiSEqC signal driving switching circuit, the sixth DiSEqC signal driving switching circuit, the seventh DiSEqC signal driving switching circuit and the eighth DiSEqC signal driving switching circuit respectively.

[0013] The second ends of the first LNB signal circuit, the second LNB signal circuit, the third LNB signal circuit, the fourth LNB signal circuit, the fifth LNB signal circuit, the sixth LNB signal circuit, the seventh LNB signal circuit and the eighth LNB signal circuit are connected with the combiner respectively.

[0014] Preferably, the eight-way LNB signal input port comprises a first LNB signal input port, a second LNB signal input port, a third LNB signal input port, a fourth LNB signal input port, a fifth LNB signal input port, a sixth LNB signal input port, a seventh LNB signal input port and an eighth LNB signal input port.

[0015] The first LNB signal input port, the second LNB signal input port, the third LNB signal input port, the fourth LNB signal input port, the fifth LNB signal input port, the sixth LNB signal input port, the seventh LNB signal input port and the eighth LNB signal input port are respectively connected with the first end of the first LNB signal circuit, the second LNB signal circuit, the third LNB signal circuit, the fourth LNB signal circuit, the fifth LNB signal circuit, the sixth LNB signal circuit, the seventh LNB signal circuit and the eighth LNB signal circuit.

[0016] Beneficial effects: the satellite television signal eight-in-one output circuit board structure of the application can better reduce the signal attenuation of LNB output to the receiver, improve the signal-to-noise ratio, and has stable circuit signal, high signal quality and stable transmission signal when 8 LNB signals are connected to 8 signal driving switching circuits. Secondly, the satellite television signal eight-in-one output circuit board structure of the application has simple and reasonable circuit, high product stability and reliability, and the switching circuit signal is more stable by adopting the combination of integrated chip DiSEqC chip R801 and driving circuit, the circuit is simple and reasonable, the manual operation process is simpler, the control signal is accurate, the processing and manufacturing process is simple, the labor cost is low, and it is suitable for batch production. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0018] Fig. 1 The overall structure diagram of the satellite television signal eight-in-one output circuit board structure provided by the embodiments of the application is shown in the figure.

[0019] Fig. 2 The circuit connection diagram of the satellite television signal eight-in-one output circuit board structure provided by the embodiments of the application is shown in the figure.

[0020] 100, first LNB signal input port; 101, second LNB signal input port; 102, third LNB signal input port; 103, fourth LNB signal input port; 104, fifth LNB signal input port; 105, sixth LNB signal input port; 106, seventh LNB signal input port; 107, eighth LNB signal input port; 110, first DiSEqC signal driving switching circuit; 120, second DiSEqC signal driving switching circuit; 130, third DiSEqC signal driving switching circuit; 140, fourth DiSEqC signal driving switching circuit; 150, fifth DiSEqC signal driving switching circuit; 160, sixth DiSEqC signal driving switching circuit; 170, seventh DiSEqC signal driving switching circuit; 180, eighth DiSEqC signal driving switching circuit; 210, first LNB signal circuit; 220, second LNB signal circuit; 230, third LNB signal circuit; 240, fourth LNB signal circuit; 250, fifth LNB signal circuit; 260, sixth LNB signal circuit; 270, seventh LNB signal circuit; 280, eighth LNB signal circuit; 310, combiner; 410, output port; 510, eight-to-one switching control circuit. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative work fall within the protection scope of the present application.

[0022] In this document, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the elements defined by the statement "comprising" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0023] Please refer to Figs. 1-2

[0024] The embodiment discloses a satellite television signal eight-to-one output circuit board structure, which comprises a circuit board body, eight-to-one switching control circuit 510 arranged on the circuit board body, 8-way signal driving switching circuit for switching signal channels and driving circuits, 8-way LNB signal input channel circuit for ensuring signal transmission quality, 8-way LNB signal input port for one-to-one corresponding connection of external LNB signals to the 8-way LNB signal input channel circuit, combiner 310 for signal combination, and output port 410 for outputting signals; the eight-to-one switching control circuit 510 is connected with a DiSEqC chip R801 for identifying different DiSEqC signals from a receiver.

[0025] The eight-to-one switching control circuit 510 is connected with the 8-way signal driving switching circuit through a cable, the 8-way signal driving switching circuit is one-to-one corresponding connected with the 8-way LNB signal input channel circuit through a cable, the 8-way LNB signal input port is one-to-one corresponding connected with the 8-way LNB signal input channel circuit through a cable, the second ends of the 8-way LNB signal input channel circuit are respectively connected with the first end of the combiner 310 through a cable, the second end of the combiner 310 is connected with the output port 410 through a cable, the output port 410 is connected with the DiSEqC chip R801 through a cable, and different 22K DiSEqC signals sent by a receiver are identified by the DiSEqC chip R801, so as to control the 8-way signal driving switching circuit.

[0026] Therefore, by using the DiSEqC eight-to-one switching switch DS81 circuit board structure, the circuit is simple and reasonable in arrangement, the product has high stability and reliability, and by adopting the chip integration mode, the signals from the LNB can be accurately identified and stably executed, so that the signals from the LNB are more stably and accurately transmitted to the receiver. It is worth mentioning that, since the circuit is simple and reasonable in arrangement, the manual operation process is simpler. That is, the processing and manufacturing process is simple, the labor cost is low, and it is suitable for batch production.

[0027] Specifically, the 8-way signal driving switching circuit comprises a first DiSEqC signal driving switching circuit 110, a second DiSEqC signal driving switching circuit 120, a third DiSEqC signal driving switching circuit 130, a fourth DiSEqC signal driving switching circuit 140, a fifth DiSEqC signal driving switching circuit 150, a sixth DiSEqC signal driving switching circuit 160, a seventh DiSEqC signal driving switching circuit 170, and an eighth DiSEqC signal driving switching circuit 180.

[0028] The first DiSEqC signal driving switching circuit 110, the second DiSEqC signal driving switching circuit 120, the third DiSEqC signal driving switching circuit 130 and the fourth DiSEqC signal driving switching circuit 140 are arranged in parallel, and the first ends of the first DiSEqC signal driving switching circuit 110, the second DiSEqC signal driving switching circuit 120, the third DiSEqC signal driving switching circuit 130 and the fourth DiSEqC signal driving switching circuit 140 are connected with the eight-selecting switching control circuit 510 respectively.

[0029] The fifth DiSEqC signal driving switching circuit 150, the sixth DiSEqC signal driving switching circuit 160, the seventh DiSEqC signal driving switching circuit 170 and the eighth DiSEqC signal driving switching circuit 180 are arranged in parallel; and the first ends of the fifth DiSEqC signal driving switching circuit 150, the sixth DiSEqC signal driving switching circuit 160, the seventh DiSEqC signal driving switching circuit 170 and the eighth DiSEqC signal driving switching circuit 180 are connected with the eight-selecting switching control circuit 510 respectively.

[0030] In the above parallel arrangement, the LNB signal passing through is low in noise and small in attenuation, and is stable and resistant to external interference. The signal transmission in high quality is better ensured, and the eight LNB signals can reach the output port 410 through the combiner 310, facilitating the transmission of the signal to the receiver through the adapter cable.

[0031] Specifically, the eight LNB signal input channel circuit includes the first LNB signal circuit 210, the second LNB signal circuit 220, the third LNB signal circuit 230, the fourth LNB signal circuit 240, the fifth LNB signal circuit 250, the sixth LNB signal circuit 260, the seventh LNB signal circuit 270 and the eighth LNB signal circuit 280.

[0032] The first ends of the first LNB signal circuit 210, the second LNB signal circuit 220, the third LNB signal circuit 230, the fourth LNB signal circuit 240, the fifth LNB signal circuit 250, the sixth LNB signal circuit 260, the seventh LNB signal circuit 270 and the eighth LNB signal circuit 280 are connected with the second ends of the first DiSEqC signal driving switching circuit 110, the second DiSEqC signal driving switching circuit 120, the third DiSEqC signal driving switching circuit 130, the fourth DiSEqC signal driving switching circuit 140, the fifth DiSEqC signal driving switching circuit 150, the sixth DiSEqC signal driving switching circuit 160, the seventh DiSEqC signal driving switching circuit 170 and the eighth DiSEqC signal driving switching circuit 180 respectively.

[0033] The second terminals of the first LNB signal circuit 210, the second LNB signal circuit 220, the third LNB signal circuit 230, the fourth LNB signal circuit 240, the fifth LNB signal circuit 250, the sixth LNB signal circuit 260, the seventh LNB signal circuit 270, and the eighth LNB signal circuit 280 are respectively connected to the combiner 310.

[0034] By adopting a novel circuit design approach that replaces the traditional circuit layout, the product achieves higher stability and reliability. The DS81 DiSEqC 8-to-1 switch circuit board structure provides a more stable signal compared to traditional PCB boards, significantly reducing signal attenuation during transmission. Furthermore, the simple and rationally arranged circuit of the DS81 DiSEqC 8-to-1 switch circuit board facilitates operation. The overall operation is simple and significantly reduces the number of components required.

[0035] Specifically, the 8 LNB signal input ports include the first LNB signal input port 100, the second LNB signal input port 101, the third LNB signal input port 102, the fourth LNB signal input port 103, the fifth LNB signal input port 104, the sixth LNB signal input port 105, the seventh LNB signal input port 106, and the eighth LNB signal input port 107.

[0036] The first LNB signal input port 100, the second LNB signal input port 101, the third LNB signal input port 102, the fourth LNB signal input port 103, the fifth LNB signal input port 104, the sixth LNB signal input port 105, the seventh LNB signal input port 106, and the eighth LNB signal input port 107 are respectively connected to the first terminals of the first LNB signal circuit 210, the second LNB signal circuit 220, the third LNB signal circuit 230, the fourth LNB signal circuit 240, the fifth LNB signal circuit 250, the sixth LNB signal circuit 260, the seventh LNB signal circuit 270, and the eighth LNB signal circuit 280. That is to say, after the signal is input from the input ports 100, 101, 102, and 103, it passes through the 8 LNB signal channels 201, 202, 203, and 204, and the combiner 310 finally outputs it stably from the output terminal 410. Furthermore, the 8-channel LNB signal input circuit connects to the cable from the LNB, reducing signal attenuation through the connection between the cable connector and the main body, thus ensuring high-quality signal transmission.

[0037] In practical application, the satellite television signal octet output circuit board structure of the embodiment can complete the transmission and control of the LNB amplified signal after the existing satellite signal is reduced in frequency in the use process. The working input frequency of the product is 0.95GHZ-2.4GHZ, and the signal attenuation of the signal in the product is 1-2.5DB.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the application, and not for the purpose of limiting the application, although the application is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solution recorded in the foregoing embodiments, or equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application, should be included in the protection scope of the application.

Claims

1. A satellite television signal octal input / output circuit board structure, characterized by, The circuit board body is provided with an eight-selecting-one-switching control circuit (510), an 8-way signal driving switching circuit for switching signal channel and driving circuit, an 8-way LNB signal input channel circuit for ensuring signal transmission quality, an 8-way LNB signal input port for one-to-one corresponding connection of external LNB signal to the 8-way LNB signal input channel circuit, a combiner (310) for signal combining and an output port (410) for outputting signal; the eight-selecting-one-switching control circuit (510) is connected with a DiSEqC chip R801 for identifying different DiSEqC signals from a receiver; The eight-selecting-one-switching control circuit (510) is connected with the 8-way signal driving switching circuit, the 8-way signal driving switching circuit is one-to-one corresponding connected with the 8-way LNB signal input channel circuit, the 8-way LNB signal input port is one-to-one corresponding connected with the 8-way LNB signal input channel circuit, the second ends of the 8-way LNB signal input channel circuit are respectively connected with the first ends of the combiner (310), the second end of the combiner (310) is connected with the output port (410), and the output port (410) is connected with the DiSEqC chip R801.

2. The satellite television signal octal-to-decimal circuit board structure of claim 1, wherein, The 8-way signal driving switching circuit comprises a first DiSEqC signal driving switching circuit (110), a second DiSEqC signal driving switching circuit (120), a third DiSEqC signal driving switching circuit (130), a fourth DiSEqC signal driving switching circuit (140), a fifth DiSEqC signal driving switching circuit (150), a sixth DiSEqC signal driving switching circuit (160), a seventh DiSEqC signal driving switching circuit (170) and an eighth DiSEqC signal driving switching circuit (180); The first DiSEqC signal driving switching circuit (110), the second DiSEqC signal driving switching circuit (120), the third DiSEqC signal driving switching circuit (130) and the fourth DiSEqC signal driving switching circuit (140) are arranged in parallel, and the first ends of the first DiSEqC signal driving switching circuit (110), the second DiSEqC signal driving switching circuit (120), the third DiSEqC signal driving switching circuit (130) and the fourth DiSEqC signal driving switching circuit (140) are respectively connected with the eight-selecting-one-switching control circuit (510); The fifth DiSEqC signal driving switching circuit (150), the sixth DiSEqC signal driving switching circuit (160), the seventh DiSEqC signal driving switching circuit (170) and the eighth DiSEqC signal driving switching circuit (180) are arranged in parallel; and the first ends of the fifth DiSEqC signal driving switching circuit (150), the sixth DiSEqC signal driving switching circuit (160), the seventh DiSEqC signal driving switching circuit (170) and the eighth DiSEqC signal driving switching circuit (180) are connected with the eight-selection switching control circuit (510) respectively.

3. The satellite television signal octal-to-decimal circuit board structure of claim 2, wherein, The 8-way LNB signal input channel circuit comprises a first LNB signal circuit (210), a second LNB signal circuit (220), a third LNB signal circuit (230), a fourth LNB signal circuit (240), a fifth LNB signal circuit (250), a sixth LNB signal circuit (260), a seventh LNB signal circuit (270) and an eighth LNB signal circuit (280); The first ends of the first LNB signal circuit (210), the second LNB signal circuit (220), the third LNB signal circuit (230), the fourth LNB signal circuit (240), the fifth LNB signal circuit (250), the sixth LNB signal circuit (260), the seventh LNB signal circuit (270) and the eighth LNB signal circuit (280) are connected with the second ends of the first DiSEqC signal driving switching circuit (110), the second DiSEqC signal driving switching circuit (120), the third DiSEqC signal driving switching circuit (130), the fourth DiSEqC signal driving switching circuit (140), the fifth DiSEqC signal driving switching circuit (150), the sixth DiSEqC signal driving switching circuit (160), the seventh DiSEqC signal driving switching circuit (170) and the eighth DiSEqC signal driving switching circuit (180) respectively in one-to-one correspondence; The second ends of the first LNB signal circuit (210), the second LNB signal circuit (220), the third LNB signal circuit (230), the fourth LNB signal circuit (240), the fifth LNB signal circuit (250), the sixth LNB signal circuit (260), the seventh LNB signal circuit (270) and the eighth LNB signal circuit (280) are connected with the combiner (310) respectively.

4. The satellite television signal octal-to-decimal circuit board structure of claim 3, wherein, The 8-way LNB signal input port includes a first LNB signal input port (100), a second LNB signal input port (101), a third LNB signal input port (102), a fourth LNB signal input port (103), a fifth LNB signal input port (104), a sixth LNB signal input port (105), a seventh LNB signal input port (106) and an eighth LNB signal input port (107); The first LNB signal input port (100), the second LNB signal input port (101), the third LNB signal input port (102), the fourth LNB signal input port (103), the fifth LNB signal input port (104), the sixth LNB signal input port (105), the seventh LNB signal input port (106) and the eighth LNB signal input port (107) are respectively connected with the first end of the first LNB signal circuit (210), the second LNB signal circuit (220), the third LNB signal circuit (230), the fourth LNB signal circuit (240), the fifth LNB signal circuit (250), the sixth LNB signal circuit (260), the seventh LNB signal circuit (270) and the eighth LNB signal circuit (280) one by one.

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