CN209949274U - Matrix switcher for switching multi-channel video signals - Google Patents
Matrix switcher for switching multi-channel video signals Download PDFInfo
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- CN209949274U CN209949274U CN201921176135.8U CN201921176135U CN209949274U CN 209949274 U CN209949274 U CN 209949274U CN 201921176135 U CN201921176135 U CN 201921176135U CN 209949274 U CN209949274 U CN 209949274U
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Abstract
The utility model discloses a matrix switcher for switching of multipath video signals, which comprises a multipath input interface for receiving multipath video signals, wherein the multipath input interface comprises at least two input interfaces; the hybrid decoding module is used for converting the multi-channel video signals into multi-channel differential signals; the optical fiber signal input module is used for converting the multi-path differential signals into optical fiber input signals; the photoelectric conversion module is used for converting the optical fiber input signals into uniform optical signals, the multi-path input interface is connected with the hybrid decoding module, the hybrid decoding module is connected with the optical fiber signal input module, and the optical fiber signal input module is connected with the photoelectric conversion module; the utility model discloses can transmit multichannel video signal for a plurality of different display device respectively, and can realize multichannel video signal's remote transmission under the condition that does not need the extension equipment.
Description
Technical Field
The utility model relates to a video signal handles technical field, in particular to a matrix switch for multichannel video signal switches.
Background
The existing matrix switcher can transmit one path of video signals to a plurality of display devices, is indispensable in a video system and a security system, and is generated by applying a multi-format matrix along with the occurrence of diversity of front-end signal sources, so that the integrated installation of the system is greatly facilitated; however, the conventional matrix switcher can only realize a short-distance video signal transmission function, and when the display of a far-end video signal needs to be completed, other extension devices need to be added for remote display, so that the manufacturing cost of the device is increased, and the problems of signal interference and delay are caused when the signals are docked between the two devices.
Thus, the prior art has yet to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a matrix switcher for switching multiple video signals, which can transmit multiple video signals to a plurality of different display devices respectively, and can realize the remote transmission of multiple video signals without the need of an extension device.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a matrix switcher for switching among multiple video signals, comprising:
the multi-channel input interface is used for receiving multi-channel video signals, wherein the multi-channel input interface comprises at least two input interfaces;
the hybrid decoding module is used for converting the multi-channel video signals into multi-channel differential signals;
the optical fiber signal input module is used for converting the multi-path differential signals into optical fiber input signals;
the photoelectric conversion module is used for converting the optical fiber input signal into a unified optical signal;
the multi-channel input interface is connected with the hybrid decoding module, the hybrid decoding module is connected with the optical fiber signal input module, and the optical fiber signal input module is connected with the photoelectric conversion module.
The matrix switcher for switching the multi-channel video signals comprises a power supply unit and a photoelectric conversion unit, wherein the power supply unit is connected with the photoelectric conversion unit, the photoelectric conversion unit is also connected with an optical fiber signal input module, the power supply unit is used for providing electric energy for the work of the photoelectric conversion unit, and the photoelectric conversion unit is used for converting the optical fiber input signal into a uniform optical signal.
In the matrix switcher for switching the multiple paths of video signals, the input interface comprises an HDIM input interface, a VGA input interface, a DP input interface, a DVI input interface, an SDI input interface and the BNC input interface.
In the matrix switcher for switching the multi-channel video signals, the hybrid decoding module comprises a processor, a DDR chip and a plurality of video input switches, the processor is connected with the DDR chip, and the processor is also connected with the plurality of video input switches respectively; the DDR chip is used for storing data, and the video input switches are used for controlling and outputting multi-path differential signals.
In the matrix switcher for switching the multiple video signals, the photoelectric conversion unit comprises a first chip, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; one end of the first resistor, one end of the second resistor and one end of the fifth resistor are all connected with the FX1_ RXVCC signal terminal, one end of the third resistor and one end of the fifth resistor are all connected with the FX1_ TXVCC signal terminal, the other end of the first resistor and one end of the sixth resistor are all connected with one end of the first capacitor and the 2 nd pin of the first chip, the other end of the second resistor and one end of the seventh resistor are all connected with one end of the second capacitor and the 3 rd pin of the first chip, the other end of the third resistor and one end of the eighth resistor are all connected with one end of the third capacitor and the 7 th pin of the first chip, the other end of the fourth resistor and one end of the ninth resistor are all connected with one end of the fourth capacitor and the 8 th pin of the first chip, and the other end of the first capacitor is connected with the M1_ GRXP signal terminal, the other end of the first capacitor is connected with an M1_ GRXM signal end, the other end of the third capacitor is connected with an M1_ GTXM signal end, the other end of the fourth capacitor is connected with an M1_ GTXP signal end, and the other ends of the sixth resistor, the seventh resistor, the eighth resistor and the ninth resistor are all grounded.
In the matrix switcher for switching the multiple video signals, the power supply unit comprises a first inductor, a second inductor, a third inductor, a fourth inductor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor and the ninth capacitor; one end of the first inductor is connected with a V1_5 signal end, the other end of the first inductor, the other end of the third inductor, one end of the second inductor, one end of the fourth inductor and one end of the fifth capacitor are all connected with FXVCC signals, the other end of the second inductor is connected with a V1_33 signal end, the other end of the third inductor, one end of the sixth capacitor and one end of the seventh capacitor are all connected with an FX1_ TXVCC signal end, the other end of the fourth inductor, one end of the eighth capacitor and one end of the ninth capacitor are all connected with an FX1_ RXVCC signal end, and the other end of the fifth capacitor, the other end of the sixth capacitor, the other end of the seventh capacitor, the other end of the eighth capacitor and the other end of the ninth capacitor are all grounded.
In the matrix switcher for switching multiple video signals, the photoelectric conversion unit includes any one of an SFP photoelectric converter, an SFP + photoelectric converter, an XFP photoelectric converter, a QSFP + photoelectric converter, and a QSFP28 photoelectric converter.
In the matrix switcher for switching the multi-channel video signals, the first chip is an FDDI-1X9 chip.
Compared with the prior art, the utility model provides a matrix switch for switching of multichannel video signal, including the multichannel input interface that is used for receiving multichannel video signal, wherein, multichannel input interface includes two kinds of at least input interface; the hybrid decoding module is used for converting the multi-channel video signals into multi-channel differential signals; the optical fiber signal input module is used for converting the multi-path differential signals into optical fiber input signals; the photoelectric conversion module is used for converting the optical fiber input signals into uniform optical signals, the multi-path input interface is connected with the hybrid decoding module, the hybrid decoding module is connected with the optical fiber signal input module, and the optical fiber signal input module is connected with the photoelectric conversion module; the utility model discloses can transmit multichannel video signal for a plurality of different display device respectively, and can realize multichannel video signal's remote transmission under the condition that does not need the extension equipment.
Drawings
Fig. 1 is a block diagram of a matrix switch for switching multiple video signals according to the present invention.
Fig. 2 is a schematic circuit diagram of a photoelectric conversion unit in a matrix switch for switching multiple video signals according to the present invention.
Fig. 3 is a schematic circuit diagram of a power supply unit in a matrix switch for switching multiple video signals according to the present invention.
Fig. 4 is a schematic circuit diagram of an optical fiber signal input module in a matrix switch for switching multiple video signals according to the present invention.
Detailed Description
The utility model provides a matrix switch for multichannel video signal switches can transmit multichannel video signal for a plurality of different display device respectively, and can realize multichannel video signal's remote transmission under the condition that does not need the extension equipment.
In order to achieve the purpose, the utility model adopts the following technical scheme.
Referring to fig. 1, the present invention provides a matrix switcher for switching multiple video signals, including a multiple input interface 100 for receiving multiple video signals, wherein the multiple input interface 100 includes at least two input interfaces, a hybrid decoding module 200 for converting the multiple video signals into multiple differential signals, an optical fiber signal input module 300 for converting the multiple differential signals into optical fiber input signals, and a photoelectric conversion module 400 for converting the optical fiber input signals into uniform optical signals; the multi-channel input interface 100 is connected to the hybrid decoding module 200, the hybrid decoding module 200 is connected to the optical fiber signal input module 300, and the optical fiber signal input module 300 is connected to the photoelectric conversion module 400.
The utility model discloses in, multichannel input interface 100 includes polytype input interface, and then can receive the signal of multiple different grade type, later passes through mix decoding module 200 and change the signal of multiple different grade type, obtain multichannel difference signal and export respectively to optical fiber signal input module 300, later combine the complete video signal's of photoelectric conversion module 400 remote transmission makes from this the matrix switch that is used for multichannel video signal to switch can support the multichannel signal's of multiple interface input and video signal's remote transmission, and then optimized the performance of the matrix switch that is used for multichannel video signal to switch has reduced the manufacturing cost of equipment, convenient to use.
Preferably, when there are a plurality of display devices, the interfaces of different display devices may be different, for example, different interfaces such as HDIM, VGA and DP are supported, so in order to adapt to the display devices of different interfaces, the input interface in this application includes a plurality of types, that is, the input interface includes an HDIM input interface, a VGA input interface, a DP input interface, a DVI input interface, an SDI input interface and the BNC input interface, thereby setting the plurality of different types of interfaces together to enable transmission of a plurality of different types of signals through the same matrix switcher, thereby avoiding setting the matrix switcher separately according to each interface, thereby saving resources and reducing manufacturing cost of the device.
Further, referring to fig. 2 and fig. 3, the photoelectric conversion module 400 includes a power supply unit 420 and the photoelectric conversion unit 410, the power supply unit 420 is connected to the photoelectric conversion unit 410, the photoelectric conversion unit 410 is further connected to the optical fiber signal input module 200, the power supply unit 420 is configured to provide electric energy for the operation of the photoelectric conversion unit 410, and the photoelectric conversion unit 410 is configured to convert the optical fiber input signal into a unified optical signal and output the unified optical signal to a display device.
In this embodiment, the number of the photoelectric conversion units 410 may be N, where N is an integer, and the number of the power supply units 420 corresponding to the photoelectric conversion units 410 is also N, where N is an integer, and each power supply unit 420 provides electric energy for the operation of each photoelectric conversion unit 410 separately, that is, the number of the photoelectric conversion units 410 and the number of the power supply units 420 in the photoelectric conversion module 400 are the same, and the number of the photoelectric conversion units is at least equal to the number of the input interfaces, so as to output video data transmitted by the multiple input interfaces 100 to each display device separately.
In this embodiment, a group of the photoelectric conversion units 410 and the power supply unit 420 is used for illustration, after receiving an optical fiber input signal, the photoelectric conversion units 410 convert the optical fiber input signal into a uniform optical signal and respectively output the uniform optical signal to an external display device, the corresponding matrix switch further includes an optical fiber signal receiving module, the optical fiber signal receiving module includes a photoelectric receiving unit adapted to the photoelectric conversion units 410, and the photoelectric receiving unit is configured to convert the optical signal output by the photoelectric conversion units 410 into a video signal in an electrical signal form capable of being recognized by the display device, so that transmission of multiple paths of video signals is completed through an optical fiber, transmission of a long-distance video signal is realized, and a separate extension device is avoided, thereby saving cost; preferably, the photoelectric conversion unit 410 includes any one of an SFP photoelectric converter, an SFP + photoelectric converter, an XFP photoelectric converter, a QSFP + photoelectric converter, and a QSFP28 photoelectric converter.
Further, the hybrid decoding module 200 includes a processor, a DDR chip and a plurality of video input switches, where the processor is connected to the DDR chip and the processor is further connected to the plurality of video input switches respectively; the DDR chip is used for storing data, and the video input switches are used for controlling and outputting multi-path differential signals.
Preferably, the processor is a haisi HI3531A chip, and of course, the haisi HI3531A chip may be replaced by a haisi HI3520A chip, a samsung RK3288 chip, a RK3399 chip, and the like, which is not limited by the present invention.
In this embodiment, the DDR chip is a double-rate synchronous dynamic random access memory, which is one of memories, preferably, the DDR chip in this embodiment has a model number of HY5PS1G1631, where HY represents modern, 5P represents a DDR memory, S represents 1.8V working voltage, 1G represents a chip capacity of 1GB, 16 represents a bit width, 3 represents a number of logic banks, and 1 represents an interface type of SST _ 2; the video signals transmitted through the multi-channel input interface 100 are input into a processor, the processor performs coding distribution processing on the video signals, outputs differential signals to be stored in a DDR chip, and then controls and outputs a plurality of differential signals of different interfaces to a light input module through a plurality of video input switches, so that transmission of remote video signals is further completed.
Further, with reference to fig. 2, the photoelectric conversion unit 410 includes a first chip U1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a first capacitor C1, a second capacitor C2, a third capacitor C3, and a fourth capacitor C4; one end of the first resistor R1, one end of the second resistor R2, and one end of the fifth resistor R5 are all connected to the FX1_ RXVCC signal terminal, one end of the third resistor R3 and one end of the fifth resistor R5 are all connected to the FX1_ TXVCC signal terminal, the other end of the first resistor R1 and one end of the sixth resistor R6 are both connected to one end of the first capacitor C1 and the 2 nd pin of the first chip U1, the other end of the second resistor R2 and one end of the seventh resistor R7 are both connected to one end of the second capacitor C2 and the 3 rd pin of the first chip U1, the other end of the third resistor R3 and one end of the eighth resistor R8 are both connected to one end of the third capacitor C3 and the 7 th pin of the first chip U1, the other end of the fourth resistor R4 and one end of the ninth resistor R9 are both connected to the first pin U1 and the first pin of the fourth chip U4, the other end of the first capacitor C1 is connected to an M1_ GRXP signal terminal, the other end of the first capacitor C1 is connected to an M1_ GRXM signal terminal, the other end of the third capacitor C3 is connected to an M1_ GTXM signal terminal, the other end of the fourth capacitor C4 is connected to an M1_ GTXP signal terminal, the other end of the sixth resistor R6, the other end of the seventh resistor R7, the other end of the eighth resistor R8, and the other end of the ninth resistor R9 are all grounded, preferably, the first chip U1 is an EDDI-1X9 chip, although in other embodiments, a first chip U1 having the same function may be selected, which is not limited by the present invention, and the optical fiber input signal is converted into an optical signal by the first chip U1 to be output, so as to complete the long-distance transmission of video data.
Further, with reference to fig. 3, the power supply unit 420 includes a first inductor L1, a second inductor L2, a third inductor L3, a fourth inductor L4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, and the ninth capacitor C9; one end of the first inductor L1 is connected to a V1_5 signal terminal, the other end of the first inductor L1, the other end of the third inductor L3, one end of the second inductor L2, one end of the fourth inductor L4 and one end of the fifth capacitor C5 are all connected to the FXVCC signal, the other end of the second inductor L2 is connected to a V1_33 signal terminal, the other end of the third inductor L3, one end of the sixth capacitor C6 and one end of the seventh capacitor C7 are all connected to an FX1_ TXVCC signal terminal, the other end of the fourth inductor L4, one end of the eighth capacitor C8 and one end of the ninth capacitor C9 are all connected to an FX1_ RXVCC signal terminal, the other end of the fifth capacitor C5, the other end of the sixth capacitor C6, the other end of the seventh capacitor C7, the other end of the eighth capacitor C8 and the other end of the ninth capacitor C9 are all connected to ground, and the photoelectric conversion unit 410 is used for providing electric energy for photoelectric conversion, the photoelectric conversion unit 410 is ensured to operate efficiently.
Further, referring to fig. 4, the optical fiber signal input module 200 includes a second chip U2, preferably, the second chip U2 is an FPGA chip, and the FPGA chip encodes the differential signal output by the hybrid encoding module to obtain an optical fiber input signal and outputs the optical fiber input signal to the photoelectric conversion module 400, so as to further complete transmission of the remote video signal, wherein a plurality of capacitors are disposed on the periphery of the FPGA chip to assist the FPGA chip in completing the signal encoding, and specific connection relationships thereof are not described herein again.
To sum up, the utility model provides a matrix switch for switching of multichannel video signal, including the multichannel input interface that is used for receiving multichannel video signal, wherein, multichannel input interface includes at least two kinds of input interface; the hybrid decoding module is used for converting the multi-channel video signals into multi-channel differential signals; the optical fiber signal input module is used for converting the multi-path differential signals into optical fiber input signals; the photoelectric conversion module is used for converting the optical fiber input signals into uniform optical signals, the multi-path input interface is connected with the hybrid decoding module, the hybrid decoding module is connected with the optical fiber signal input module, and the optical fiber signal input module is connected with the photoelectric conversion module; the utility model discloses can transmit multichannel video signal for a plurality of different display device respectively, and can realize multichannel video signal's remote transmission under the condition that does not need the extension equipment.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (8)
1. A matrix switcher for switching among a plurality of video signals, comprising:
the multi-channel input interface is used for receiving multi-channel video signals, wherein the multi-channel input interface comprises at least two input interfaces;
the hybrid decoding module is used for converting the multi-channel video signals into multi-channel differential signals;
the optical fiber signal input module is used for converting the multi-path differential signals into optical fiber input signals;
the photoelectric conversion module is used for converting the optical fiber input signal into a unified optical signal;
the multi-channel input interface is connected with the hybrid decoding module, the hybrid decoding module is connected with the optical fiber signal input module, and the optical fiber signal input module is connected with the photoelectric conversion module.
2. The matrix switcher used for switching among multiple video signals according to claim 1, wherein the optical-to-electrical conversion module comprises a power supply unit and an optical-to-electrical conversion unit, the power supply unit is connected with the optical-to-electrical conversion unit, the optical-to-electrical conversion unit is further connected with an optical fiber signal input module, the power supply unit is used for providing electric energy for the operation of the optical-to-electrical conversion unit, and the optical-to-electrical conversion unit is used for converting the optical fiber input signal into a unified optical signal.
3. The matrix switcher for switching of multiple video signals of claim 1 wherein said input interface comprises an HDIM input interface, a VGA input interface, a DP input interface, a DVI input interface, an SDI input interface and a BNC input interface.
4. The matrix switcher for multi-channel video signal switching according to claim 1, wherein the hybrid decoding module comprises a processor, a DDR chip and a plurality of video input switches, the processor is connected with the DDR chip, and the processor is further connected with the plurality of video input switches respectively; the DDR chip is used for storing data, and the video input switches are used for controlling and outputting multi-path differential signals.
5. The matrix switcher for switching among multiple video signals according to claim 2, wherein the photoelectric conversion unit comprises a first chip, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; one end of the first resistor, one end of the second resistor and one end of the fifth resistor are all connected with an FX1_ RXVCC signal end, one end of the third resistor and one end of the fifth resistor are all connected with the FX1_ TXVCC signal end, the other end of the first resistor and one end of the sixth resistor are all connected with one end of the first capacitor and the 2 nd pin of the first chip, the other end of the second resistor and one end of the seventh resistor are all connected with one end of the second capacitor and the 3 rd pin of the first chip, the other end of the third resistor and one end of the eighth resistor are all connected with one end of the third capacitor and the 7 th pin of the first chip, the other end of the fourth resistor and one end of the ninth resistor are all connected with one end of the fourth capacitor and the 8 th pin of the first chip, and the other end of the first capacitor is connected with an M1_ GRXP signal end, the other end of the first capacitor is connected with an M1_ GRXM signal end, the other end of the third capacitor is connected with an M1_ GTXM signal end, the other end of the fourth capacitor is connected with an M1_ GTXP signal end, and the other ends of the sixth resistor, the seventh resistor, the eighth resistor and the ninth resistor are all grounded.
6. The matrix switcher for switching among multiple video signals of claim 2, wherein the power supply unit comprises a first inductor, a second inductor, a third inductor, a fourth inductor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor and a ninth capacitor; one end of the first inductor is connected with a V1_5 signal end, the other end of the first inductor, the other end of the third inductor, one end of the second inductor, one end of the fourth inductor and one end of the fifth capacitor are all connected with FXVCC signals, the other end of the second inductor is connected with a V1_33 signal end, the other end of the third inductor, one end of the sixth capacitor and one end of the seventh capacitor are all connected with an FX1_ TXVCC signal end, the other end of the fourth inductor, one end of the eighth capacitor and one end of the ninth capacitor are all connected with an FX1_ RXVCC signal end, and the other end of the fifth capacitor, the other end of the sixth capacitor, the other end of the seventh capacitor, the other end of the eighth capacitor and the other end of the ninth capacitor are all grounded.
7. The matrix switcher for multi-channel video signal switching according to claim 5, wherein the photoelectric conversion unit includes any one of an SFP photoelectric converter, an SFP + photoelectric converter, an XFP photoelectric converter, a QSFP + photoelectric converter, and a QSFP28 photoelectric converter.
8. The matrix switch for switching multiple video signals according to claim 5, wherein the first chip is an FDDI-1X9 chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921176135.8U CN209949274U (en) | 2019-07-24 | 2019-07-24 | Matrix switcher for switching multi-channel video signals |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921176135.8U CN209949274U (en) | 2019-07-24 | 2019-07-24 | Matrix switcher for switching multi-channel video signals |
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| CN209949274U true CN209949274U (en) | 2020-01-14 |
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