Satellite television signal two-in and one-out circuit board structure

Abstract

The utility model relates to the technical field of satellite television change-over switches, and discloses a satellite television signal two-in and one-out circuit board structure which comprises a circuit board body provided with a DiSEqC one-out-two change-over switch and an IC chip 108Y. According to the invention, efficient and stable satellite television signal two-in and one-out control is realized; in the signal processing process, satellite television signals of different sources or characteristics can be received through the two-path LNB signal input channel circuit, the IC chip 108Y is matched with the two-path DiSEqC signal output driving switching circuit of the DiSEqC either-or change-over switch, input signals are screened and switched accurately according to control instructions, and the signal processing efficiency is improved. According to the utility model, the problem of attenuation of satellite signals caused by factors such as transmission distance and frequency is effectively solved, the signal-to-noise ratio and stability of the signals are improved, the circuit design is simplified, the processing and manufacturing difficulty and labor cost are reduced, batch production and market promotion are facilitated, and reliable guarantee is provided for efficient transmission and reception of satellite television signals.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of satellite television switches, in particular to a satellite television signal DiSEqC two-input-one-output switch DS21 circuit board, and specifically relates to a satellite television signal two-input-one-output circuit board structure. BACKGROUND

[0002] The DiSEqC two-input-one-output switch transmits relevant control instructions in series through a coaxial cable connected with an LNB high-frequency head, the digital signals being modulated on a 22KHz frequency and alternating, and selects a response channel according to different instructions. Satellite programs required by a satellite receiver are transmitted to the satellite receiver through the coaxial cable, and are connected by a 2-way LNB signal input channel circuit and a 2-way DiSEqC signal output drive switching circuit.

[0003] The DiSEqC two-input-one-output switch can be generally used in connection with intermediate frequency signals of satellite television signal transmission, and specifically refers to C-band LNB (0.95GHZ-1.75GHZ) and KU-band LNB (0.95GHZ-2.15GHZ).

[0004] All signals of a satellite are quite weak before reaching an antenna, and the higher the frequency of coaxial cable transmission is, the greater the signal loss is, so that the LNB is required to amplify, and the process of amplification cannot excessively deteriorate the signal-to-noise ratio. The LNB amplifies satellite high-frequency signals when working, and then converts the high-frequency satellite signals to an intermediate frequency (950MHZ-2150MHZ (determined by the type of LNB)) by using a local oscillation circuit and amplifies again, thereby facilitating the transmission of the coaxial cable.

[0005] The DiSEqC two-input-one-output switch is connected with the input signal satellite of the LNB through an input port and the receiver through a signal output port. After being set by the satellite receiver, the DiSEqC two-input-one-output switch can be connected to different satellite programs, realizes the switching of different polarizations and different bands of at least two satellite input signals, and completes more satellite programs watched by one receiver.

[0006] At present, the circuit board structure commonly used for the DiSEqC two-input-one-output switch is complex in circuit arrangement and complicated in processing and manufacturing procedures, and is high in labor cost, and is not suitable for batch production. CONTENT OF THE NEW MODEL

[0007] The application aims to provide a satellite television signal two-input-one-output circuit board structure to solve the technical problems in the background art.

[0008] To achieve the above object, the application discloses the following technical scheme: a satellite television signal two-in-one-out circuit board structure, comprising a circuit board body provided with a DiSEqC two-out-of-three switch and an IC chip 108Y;

[0009] The DiSEqC two-out-of-three switch comprises a 2-way LNB signal input channel circuit and a 2-way DiSEqC signal output driving switching circuit.

[0010] Preferably, the circuit board body is further provided with an input port and an output port, the input port is connected with an LNB through a cable, and the output port is connected with a satellite receiver through a cable.

[0011] Preferably, the circuit board body is further provided with an LBN signal access port and a signal output port, and the signal access port and the signal output port are used for accessing external signals to the circuit board body.

[0012] Beneficial effects: the satellite television signal two-in-one-out circuit board structure of the application realizes efficient and stable satellite television signal two-in-one-out control by using the circuit board body provided with the DiSEqC two-out-of-three switch and the IC chip 108Y. In the signal processing process, the 2-way LNB signal input channel circuit can receive satellite television signals of different sources or characteristics, the IC chip 108Y cooperates with the 2-way DiSEqC signal output driving switching circuit of the DiSEqC two-out-of-three switch to accurately screen and switch the input signals according to the control instructions, and only the signals meeting the requirements are transmitted to the satellite receiver through the output port. This structure effectively solves the attenuation problem of satellite signals caused by factors such as transmission distance and frequency, improves the signal-to-noise ratio and stability of the signals, simplifies the circuit design compared with the traditional complex circuit board structure, reduces the processing difficulty and labor cost, is more conducive to batch production and market promotion, and provides reliable protection for efficient transmission and reception of satellite television signals. BRIEF DESCRIPTION OF DRAWINGS

[0013] 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 embodiment or prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Fig. 1 The overall structure schematic diagram of the satellite television signal two-in-one-out circuit board structure provided by the embodiment of the application is shown in the following figure:

[0015] Fig. 2The circuit connection schematic diagram of the overall structure of the satellite television signal two-in-one circuit board structure provided by the embodiment of the application is shown.

[0016] The figure mark: 100, LNB signal input port; 101, LNB signal input port; 110, DiSEqC signal driving switching circuit; 120, DiSEqC signal driving switching circuit; 210, two-way LNB secondary signal; 220, LNB signal input channel circuit; 310, LNB primary signal; 320, LNB signal input channel circuit; 410, output port; 510, DiSEqC two-way switching circuit. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the application will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments of the application. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0018] In this document, the term "comprising" is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes the elements inherent in such 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.

[0019] Please refer to Figs. 1-2

[0020] The embodiment discloses a satellite television signal two-in-one circuit board structure, which comprises a circuit board body provided with a DiSEqC two-way switching switch and an IC chip 108Y.

[0021] The DiSEqC two-way switching switch comprises a two-way LNB signal input channel circuit and a two-way DiSEqC signal output driving switching circuit.

[0022] By the above, the embodiment realizes efficient and stable satellite television signal two-in-one output control by using the circuit board body provided with the DiSEqC two-way switch and the IC chip 108Y. In the signal processing process, the 2-way LNB signal input channel circuit can receive satellite television signals of different sources or characteristics, the IC chip 108Y cooperates with the 2-way DiSEqC signal output drive switching circuit of the DiSEqC two-way switch to accurately screen and switch the input signal according to the control instruction, and ensure that only the signal meeting the requirements is transmitted to the satellite receiver through the output port. This structure effectively solves the problem of signal attenuation caused by transmission distance and frequency, improves the signal-to-noise ratio and stability of the signal, and simplifies the circuit design compared with the traditional complex circuit board structure, reduces the processing difficulty and labor cost, and is more conducive to batch production and market promotion, providing reliable protection for efficient transmission and reception of satellite television signals.

[0023] Specifically, the circuit board body is also provided with an input port and an output port, the input port is connected with the LNB through a cable, and the output port is connected with the satellite receiver through a cable.

[0024] By the above, the embodiment realizes efficient and stable satellite television signal two-in-one output control by using the circuit board body provided with the DiSEqC two-way switch and the IC chip 108Y. In the signal processing process, the 2-way LNB signal input channel circuit can receive satellite television signals of different sources or characteristics, the IC chip 108Y cooperates with the 2-way DiSEqC signal output drive switching circuit of the DiSEqC two-way switch to accurately screen and switch the input signal according to the control instruction, and ensure that only the signal meeting the requirements is transmitted to the satellite receiver through the output port. This structure effectively solves the problem of signal attenuation caused by transmission distance and frequency, improves the signal-to-noise ratio and stability of the signal, and simplifies the circuit design compared with the traditional complex circuit board structure, reduces the processing difficulty and labor cost, and is more conducive to batch production and market promotion, providing reliable protection for efficient transmission and reception of satellite television signals.

[0025] Specifically, the circuit board body is also provided with an input port and an output port, the input port is connected with the LNB through a cable, and the output port is connected with the satellite receiver through a cable.

[0026] By the above, the embodiment utilizes the signal access port and the signal output port of the LBN arranged on the circuit board body to realize convenient access and transmission control of external signals. The signal access port enables external signals to be conveniently introduced into the circuit board body, providing more signal source selection possibilities for the system and enriching the input channels of satellite television signals. The signal output port, on the other hand, standardizes the path of signal output from the circuit board to the outside, ensuring that the signals processed by the internal circuit can be output in a predetermined manner, guaranteeing the accuracy and stability of signal transmission. The arrangement of the two ports enhances the universality and expandability of the circuit board structure, making it better adapt to different satellite television signal receiving scenarios and user needs, and improving the flexibility and adaptability of the entire system.

[0027] In the satellite television signal input and output circuit board structure of the embodiment, the circuit board body includes a DiSEqC two-way switching circuit 510 and a 2-way LNB signal input channel circuit 220, 320 and a 2-way output DiSEqC signal drive switching circuit 110, 120 and a 1-way output port 410.

[0028] The DiSEqC two-way switching circuit is connected with the 2-way LNB signal input channel circuit, the 2-way output DiSEqC signal drive switching circuit and the 1-way output port and the receiver through a cable. The 2-way LNB signal input channel circuit includes a 1-way LNB primary signal 310, a 1-way LNB secondary signal 320, a 2-way LNB primary signal 220 and a 2-way LNB secondary signal 210. The DiSEqC signal drive switching circuit 510 includes a 1-way DiSEqC signal drive switching circuit 110 and a 2-way DiSEqC signal drive switching circuit 120.

[0029] The 2-way LNB signal input 100, 101 connects the cable from the LNB, realizing the connection of the cable connector and the body to reduce signal attenuation and ensure high-quality signal transmission.

[0030] The 2-way LNB signal input channel circuit 1-way LNB signal 310, 320 and 2-way LNB signal 220, 210 are connected in parallel in the circuit. The LNB signal passing through has low noise, small attenuation, stable signal and good resistance to external interference, better ensuring high-quality signal transmission. The combination of the combination capacitor ensures that the 2-way LNB signal can reach the output port 410, facilitating the connection of the cable to transmit the signal to the receiver.

[0031] 2-way output DiSEqC signal drive switching circuit, DiSEqC signal one-way drive switching circuit 110, DiSEqC signal two-way drive switching circuit 120. All through 510 DiSEqC chip 108Y connection output port circuit board body, through different instructions from the receiver. Identify and perform work, complete the specific signal channel and drive circuit.

[0032] Therefore, using the present embodiment, the circuit is simple, reasonable arrangement, high product stability and reliability, and by adopting the chip integration mode to ensure that the signal from the receiver can be accurately identified and stably execute instructions, so that the signal from the LNB is more stable and accurate transmission to the receiver. It is worth mentioning that, because the circuit is simple and reasonable arrangement, so the manual operation process is simpler. That is, the processing and manufacturing process is simple, low labor cost, suitable for mass production.

[0033] In a specific embodiment, the circuit board body is also provided with an output port 410, and the output port 410 is connected with a combined capacitor. And the circuit board body is also provided with 2-way signal input port 100, 101, 2-way signal input port 100, 101 for connecting external LNB signal to 2-way LNB signal channel 220, 320 circuit. That is, the signal is connected from the input port 100, 101, through the 2-way LNB signal channel 220, 210, 320, 310 circuit, and the combined capacitor is finally stably output from the output port 410.

[0034] In a specific embodiment, the circuit board body is also provided with 510 DiSEqC chip 108Y switching circuit system and 2-way output DiSEqC signal drive switching circuit, and the 510 DiSEqC chip 108Y switching circuit system and the 2-way output DiSEqC signal drive switching circuit are connected. That is, the 510 DiSEqC chip 108Y switching circuit, through the receiver to send different 22K DiSEqC signal through the chip 108Y identification, to control the 2-way drive circuit. One-way drive switching circuit 110, DiSEqC signal two-way drive switching circuit 120. To complete the control of 2-way signal input port 100, 101, for connecting external LNB signal to 2-way LNB signal channel 220, 210, 320, 310 circuit.

[0035] Therefore, by adopting the novel circuit design idea, the traditional circuit layout is replaced, so that the stability and reliability of the product are higher, the signal of the DiSEqC two-out-of-one switch DS21 circuit board structure is more stable than that of the traditional PCB board, and the signal attenuation in transmission is well reduced. And because the circuit of the DiSEqC two-out-of-one switch DS21 circuit board structure is simple and arranged reasonably, it is convenient to operate. The overall operation process is simple, and the number of components used is obviously saved.

[0036] In a specific embodiment, the DiSEqC two-out-of-one switch DS21 circuit board structure. In the use process, the existing satellite signal frequency reduction, LNB amplified signal transmission and control can be completed. The working input frequency of the product is 0.95GHZ-2.4GHZ, and the signal attenuation in the product is 1-2.5DB.

[0037] In summary, the satellite television signal two-in-one-out circuit board structure of the embodiment realizes efficient and stable satellite television signal two-in-one-out control by using the circuit board body provided with the DiSEqC two-out-of-one switch and the IC chip 108Y. In the signal processing process, the 2-way LNB signal input channel circuit can receive satellite television signals of different sources or characteristics, and the IC chip 108Y cooperates with the 2-way DiSEqC signal output drive switching circuit of the DiSEqC two-out-of-one switch to accurately screen and switch the input signal according to the control instruction, so that only the signal meeting the requirements is transmitted to the satellite receiver through the output port. This structure effectively solves the problem of signal attenuation caused by transmission distance and frequency, improves the signal-to-noise ratio and stability of the signal, and simplifies the circuit design compared with the traditional complex circuit board structure, reduces the processing and manufacturing difficulty and labor cost, is more conducive to batch production and market promotion, and provides reliable protection for efficient transmission and reception of satellite television signals.

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

Claims

1. A two-input, one-output circuit board structure for satellite television signals, characterized in that, The circuit board body is provided with a DiSEqC two-way switch, an IC chip 108Y; The DiSEqC two-way switch comprises a 2-way LNB signal input channel circuit and a 2-way DiSEqC signal output driving switch circuit.

2. The satellite television signal A / D converter board structure according to claim 1, wherein, The circuit board body is further provided with an input port and an output port, the input port is connected with an LNB through a cable, and the output port is connected with a satellite receiver through a cable.

3. The satellite television signal A / D converter board structure according to claim 2, wherein, The circuit board body is further provided with an LBN signal access port and a signal output port, which are used for accessing external signals to the circuit board body.

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