CN211128020U - Optical fiber signal receiving apparatus and optical fiber signal receiving system - Google Patents
Optical fiber signal receiving apparatus and optical fiber signal receiving system Download PDFInfo
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- CN211128020U CN211128020U CN202020214873.3U CN202020214873U CN211128020U CN 211128020 U CN211128020 U CN 211128020U CN 202020214873 U CN202020214873 U CN 202020214873U CN 211128020 U CN211128020 U CN 211128020U
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Abstract
The utility model provides an optical fiber signal receiving device and an optical fiber signal receiving system, which relate to the technical field of signal processing and comprise an optical fiber interface, a main processor, a DVI sending chip, an HDMI sending chip, a DVI interface and an HDMI interface; the optical fiber interface is connected with the main processor, the DVI sending chip and the DVI interface are sequentially connected, and the main processor, the HDMI sending chip and the HDMI interface are sequentially connected. The utility model provides an optical signal receiving equipment has kept the DVI interface for the different demands of adaptation user to add the HDMI interface that supports the output of the bigger resolution ratio more than 4K or 4K, thereby effectively alleviated the technical problem that can not satisfy the output demand of higher resolution ratio that optical signal receiving equipment among the prior art exists.
Description
Technical Field
The utility model belongs to the technical field of signal processing's technique and specifically relates to a fiber signal receiving equipment and fiber signal receiving system are related to.
Background
In the prior art, the highest video format supports a resolution of more than 8K, so that the application of the ARINC818 protocol in a video transmission system is increasing, the ARINC818 protocol is mainly applied to real-time high-definition image transmission among airborne devices, and has been successfully applied to various civilian and military models at present, which is one of the development directions of future airborne video transmission buses, but the interface form of the optical fiber signal receiving device in the prior art only supports a DVI interface, and the DVI interface supports the resolution of 1080p @60Hz at the highest level, and cannot meet the requirement of outputting a higher resolution of 4K or more than 4K.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical signal receiving equipment and optical signal receiving system to the technical problem that can not satisfy higher resolution ratio output demand that optical signal receiving equipment among the prior art exists has been alleviated.
In a first aspect, an embodiment provides an optical fiber signal receiving apparatus, including: the device comprises an optical fiber interface, a main processor, a DVI sending chip, an HDMI sending chip, a DVI interface and an HDMI interface; the optical fiber interface is connected with the main processor, the DVI sending chip and the DVI interface are sequentially connected, and the main processor, the HDMI sending chip and the HDMI interface are sequentially connected; the optical fiber interface is used for receiving an optical fiber signal and sending the optical fiber signal to the main processor; the main processor is used for determining a YCBCR signal or a first RGB signal based on the optical fiber signal when a user selects to output an HDMI interface signal, and sending the YCBCR signal or the first RGB signal to the HDMI sending chip; the HDMI sending chip is used for determining an HDMI signal based on the YCBCR signal or the first RGB signal and outputting the HDMI signal to video playing equipment through the HDMI; the main processor is used for determining a gray signal or a second RGB signal based on the optical fiber signal when a user selects to output a DVI interface signal, and sending the gray signal or the second RGB signal to the DVI sending chip; the DVI sending chip is used for determining DVI interface signals based on the gray signals or the second RGB signals and outputting the DVI interface signals to video playing equipment through the DVI interface.
In an optional embodiment, the optical fiber signal receiving apparatus further includes: an RS232 interface and an RS232 transceiver; the RS232 interface is connected with the main processor through the RS232 transceiver.
In an alternative embodiment, the fiber optic interface comprises: the optical fiber connector comprises a first optical fiber interface and a second optical fiber interface, wherein the first optical fiber interface and the second optical fiber interface are mutually redundant.
In an optional embodiment, the optical fiber signal receiving apparatus further includes: the input interface indicator light and the output interface indicator light are connected with the main processor; the input interface indicator light is configured to indicate a target optical fiber interface that receives the optical fiber signal, where the target optical fiber interface includes any one of: a first optical fiber interface, a second optical fiber interface; the output interface indicator light is used for indicating a target interface for outputting a video signal, wherein the target interface comprises any one of the following components: DVI interface, HDMI interface.
In an optional embodiment, the optical fiber signal receiving apparatus further includes: the temperature test chip is connected with the main processor; the temperature test chip is used for measuring the temperature of the main processor to obtain a temperature electric signal and sending the temperature electric signal to the main processor.
In an optional embodiment, the optical fiber signal receiving apparatus further includes: an output interface switching key connected with the main processor; the output interface switching key is used for receiving an output interface switching instruction of a user and sending the output interface switching instruction to the main processor.
In an alternative embodiment, the HDMI transmitter chip comprises an L T8618EX chip.
In an alternative embodiment, the DVI transmitting chip includes: TFP410PAP chips.
In an alternative embodiment, the RS232 transceiver comprises: SP3220EEA chip.
In a second aspect, an embodiment provides an optical fiber signal receiving system, including the optical fiber signal receiving apparatus described in any of the foregoing embodiments, further including: the system comprises video playing equipment and optical fiber signal sending equipment; the optical fiber signal receiving equipment is used for converting the optical fiber signal sent by the optical fiber signal sending equipment into a DVI interface signal or an HDMI interface signal and sending the DVI interface signal or the HDMI interface signal to the video playing equipment.
The interface form of optical fiber signal receiving equipment among the prior art only supports the DVI interface, can not satisfy the demand of exporting 4K or more than 4K greater resolution ratio, compares with prior art, the utility model provides an optical fiber signal receiving equipment, include: the device comprises an optical fiber interface, a main processor, a DVI sending chip, an HDMI sending chip, a DVI interface and an HDMI interface; the optical fiber interface is connected with the main processor, the DVI sending chip and the DVI interface are sequentially connected, and the main processor, the HDMI sending chip and the HDMI interface are sequentially connected; the optical fiber interface is used for receiving the optical fiber signal and sending the optical fiber signal to the main processor; the main processor is used for determining a YCBCR signal or a first RGB signal based on the optical fiber signal and sending the YCBCR signal or the first RGB signal to the HDMI sending chip when the user selects to output the HDMI interface signal; the HDMI sending chip is used for determining an HDMI signal based on the YCBCR signal or the first RGB signal and outputting the HDMI signal to the video playing device through an HDMI interface; the main processor is used for determining a gray signal or a second RGB signal based on the optical fiber signal when a user selects to output the DVI interface signal, and sending the gray signal or the second RGB signal to the DVI sending chip; and the DVI sending chip is used for determining a DVI interface signal based on the gray signal or the second RGB signal and outputting the DVI interface signal to the video playing device through the DVI interface.
The utility model provides an optical signal receiving equipment has remained the DVI interface for the different demands of adaptation user to add the HDMI interface that supports the output of the bigger resolution ratio more than 4K or 4K, thereby the effectual technical problem who can not satisfy the output demand of higher resolution ratio who has alleviated optical signal receiving equipment among the prior art and has existed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an optical fiber signal receiving apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an alternative optical fiber signal receiving device according to an embodiment of the present invention;
fig. 3 is a schematic circuit connection diagram of an SP3220EEA chip according to an embodiment of the present invention;
fig. 4 is an interface diagram of an L T8618EX chip according to an embodiment of the present invention;
fig. 5 is an interface diagram of a TFP410PAP chip according to an embodiment of the present invention;
FIG. 6 is a diagram of a 24-bit mode mapping of a TFP410PAP chip according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an optical fiber signal receiving system according to an embodiment of the present invention.
Icon: 10-a video playback device; 20-a fiber optic signal receiving device; 30-fiber optic signaling equipment; 21-an optical fiber interface; 22-a main processor; 23-DVI transmitting chip; 24-HDMI transmitting chip; 25-DVI interface; 26-HDMI interface; 27-RS232 interface; 28-RS232 transceiver.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Example one
The embodiment of the utility model provides an optical fiber signal receiving equipment, as shown in figure 1, this optical fiber signal receiving equipment includes: the device comprises an optical fiber interface 21, a main processor 22, a DVI sending chip 23, an HDMI sending chip 24, a DVI interface 25 and an HDMI interface 26; the optical fiber interface 21 is connected to the main processor 22, the DVI transmitting chip 23, and the DVI interface 25 are sequentially connected, and the main processor 22, the HDMI transmitting chip 24, and the HDMI interface 26 are sequentially connected.
And an optical fiber interface 21 for receiving the optical fiber signal and transmitting the optical fiber signal to a main processor 22.
And the main processor 22 is configured to determine a YCBCR signal or a first RGB signal based on the optical fiber signal and transmit the YCBCR signal or the first RGB signal to the HDMI transmitting chip 24 when the user selects to output the HDMI interface signal.
The HDMI transmitting chip 24 is configured to determine an HDMI interface signal based on the YCBCR signal or the first RGB signal, and output the HDMI interface signal to the video playback device through the HDMI interface 26.
And a main processor 22 for determining a gray signal or a second RGB signal based on the optical fiber signal and transmitting the gray signal or the second RGB signal to the DVI transmitting chip 23 when the user selects to output the DVI interface signal.
And a DVI transmitting chip 23 for determining a DVI interface signal based on the gray signal or the second RGB signal and outputting the DVI interface signal to the video playback device through the DVI interface 25.
The embodiment of the utility model provides an optical fiber signal receiving equipment is a High performance Video fiber conversion equipment who accords with Avionics Digital Video BUS protocol (avinics Digital Video BUS, ADVB), and this optical fiber signal receiving equipment's main processor 22 can adopt High integrated level FPGA (field programmable Gate Array) chip and DDR 3L (DDR 3L ow Voltage, low Voltage version DDR3) to realize ARINC818 protocol, in order to adapt to the output demand of user to different resolution ratio Video signal, the utility model discloses an optical fiber signal receiving equipment includes optical fiber Interface 21, main processor 22, DVI (Digital Video Interface ) send the chip, DVI Interface 25, High Definition Multimedia Interface (HDMI) send chip and HDMI 26, the user can be according to the Interface type that the Video playback equipment that the rear end connected can support, control optical fiber signal receiving equipment output Interface signal or DVI signal.
Specifically, when the user selects the optical fiber signal receiving device to output the HDMI interface signal, the main processor 22 converts the optical fiber signal into a YCBCR signal or a first RGB signal after receiving the optical fiber signal accessed by the optical fiber interface 21, where the YCBCR signal or the first RGB signal is a pixel type of the video signal, then the main processor 22 sends the YCBCR signal or the first RGB signal to the HDMI sending chip 24, and the HDMI sending chip 24 determines a corresponding HDMI interface signal based on the received YCBCR signal or the first RGB signal, and sends the HDMI interface signal to the video playing device through the HDMI interface 26.
Under the condition that a user selects the optical fiber signal receiving equipment to output DVI interface signals, after receiving optical fiber signals accessed by the optical fiber interface 21, the main processor 22 converts the optical fiber signals into gray scale signals or second RGB signals, wherein the gray scale signals or the second RGB signals are also pixel types of video signals, then the main processor 22 sends the gray scale signals or the second RGB signals to the DVI sending chip 23, the DVI sending chip 23 determines corresponding DVI interface signals based on the received gray scale signals or the second RGB signals, and sends the DVI interface signals to video playing equipment through the DVI interface 25, and optionally, the main processor 22 adopts XC7K325T-2FFG 900I.
The interface form of optical fiber signal receiving equipment among the prior art only supports DVI interface 25, can not satisfy the demand of exporting 4K or more than 4K greater resolution ratio, compares with prior art, the utility model provides an optical fiber signal receiving equipment, include: the device comprises an optical fiber interface 21, a main processor 22, a DVI sending chip 23, an HDMI sending chip 24, a DVI interface 25 and an HDMI interface 26; the optical fiber interface 21 is connected with the main processor 22, the DVI sending chip 23 and the DVI interface 25 are sequentially connected, and the main processor 22, the HDMI sending chip 24 and the HDMI interface 26 are sequentially connected; the optical fiber interface 21 is used for receiving the optical fiber signal and sending the optical fiber signal to the main processor 22; the main processor 22 is configured to determine a YCBCR signal or a first RGB signal based on the optical fiber signal and send the YCBCR signal or the first RGB signal to the HDMI sending chip 24 when the user selects to output the HDMI interface signal; the HDMI transmitting chip 24 is configured to determine an HDMI interface signal based on the YCBCR signal or the first RGB signal, and output the HDMI interface signal to the video playback device through the HDMI interface 26; a main processor 22, configured to determine a grayscale signal or a second RGB signal based on the optical fiber signal when the user selects to output the DVI interface signal, and send the grayscale signal or the second RGB signal to the DVI sending chip 23; and a DVI transmitting chip 23 for determining a DVI interface signal based on the gray signal or the second RGB signal and outputting the DVI interface signal to the video playback device through the DVI interface 25.
The utility model provides an optical signal receiving equipment has kept DVI interface 25 for the different demands of adaptation user to add the HDMI interface 26 that supports the output of the bigger resolution ratio more than 4K or 4K, thereby the effectual technical problem who can not satisfy the output demand of higher resolution ratio who has alleviated optical signal receiving equipment among the prior art and has existed.
The above description has briefly described the structure of the optical fiber signal receiving device provided by the present invention, and the following description will describe in detail other structures that can be added therein.
In an alternative embodiment, as shown in fig. 2, the optical fiber signal receiving apparatus further includes: an RS232 interface 27 and an RS232 transceiver 28; the RS232 interface 27 is connected to the host processor 22 via an RS232 transceiver 28.
Specifically, the utility model discloses an optical fiber signal receiving equipment has still provided the RS232 function, therefore, constitute structural corresponding RS232 interface 27 and RS232 transceiver 28 that sets up, RS232 interface 27 provides optical fiber signal receiving equipment and external control equipment's communication interface, RS232 transceiver 28 is TT L level signal and RS232 signal's conversion equipment, can be with external control equipment through the RS232 signal conversion that RS232 interface 27 sent for level signal transmission to host processor 22, also can convert the level signal that host processor 22 sent into the RS232 signal, and send out through the RS232 interface.
The external control device can query the connection state, resolution state, FPGA self-checking state, and various types of mib information of the main processor 22 through the RS232 interface 27, and can also switch the receiving channel and the sending channel of the main processor 22, set the resolution of the received video data (default interface parameters: baud rate: 115200, no check, 1-bit stop bit), and the like.
In order to reduce the space occupied by the RS232 interface 27, it is preferable to configure the RS232 interface 27 as an RJ45 interface, the RS232 transceiver 28 in the present invention is preferably implemented by using SP3220EEA chip of SIPEX corporation, the circuit connection diagram of the SP3220EEA chip is shown in fig. 3, the CONSO L E _ RXD (8 th pin) and the CONSO L E _ TXD (13 th pin) are pins connected to the RS232 interface 27, and the corresponding SMC1_ RXD (9 th pin) and SMC2_ TXD (11 th pin) are pins connected to the main processor 22.
In an alternative embodiment, the fiber optic interface 21 comprises: the optical fiber connector comprises a first optical fiber interface and a second optical fiber interface, wherein the first optical fiber interface and the second optical fiber interface are redundant mutually.
Specifically, in order to increase the practicability of the optical fiber signal receiving device, the number of the optical fiber interfaces 21 in the present invention is 2, including the first optical fiber interface and the second optical fiber interface, both of which can be accessed with the optical fiber signal, however, when the main processor 22 receives the optical fiber signal transmitted by the first optical fiber interface, it is not able to process the signal accessed by the second optical fiber interface simultaneously, and, similarly, when the main processor 22 receives the optical fiber signal transmitted by the second optical fiber interface, the signal accessed by the first optical fiber interface cannot be processed at the same time, the main processor 22 can determine which optical fiber signal is processed according to the connection state of the two optical fiber interfaces, if two way optic fibre all connect normally, then will receive optic fibre signal earlier and handle all the way, the embodiment of the utility model provides a do not carry out concrete restriction to optical fiber interface 21's quantity, the user can increase or reduce according to actual demand.
In an optional embodiment, the optical fiber signal receiving apparatus further comprises: an input interface indicator light and an output interface indicator light connected to the main processor 22.
An input interface indicator light for indicating a target fiber optic interface receiving a fiber optic signal, wherein the target fiber optic interface comprises any of: the first optical fiber interface and the second optical fiber interface.
The output interface indicator light is used for indicating a target interface for outputting the video signal, wherein the target interface comprises any one of the following components: DVI interface 25, HDMI interface 26.
In order to enhance the operability and user experience of the optical fiber signal receiving device, an input interface indicator lamp and an output interface indicator lamp are arranged on the shell of the optical fiber signal receiving device, preferably, the input interface indicator lamp is arranged close to the optical fiber interface 21, and the output interface indicator lamp is arranged close to the DVI interface 25 and the HDMI interface 26; or, the input interface indicator light and the output interface indicator light are respectively provided with one, the use states of different interfaces are distinguished according to different colors of the indicator lights, and further, a transmission rate indicator light of the optical fiber interface 21 can be additionally arranged to indicate different optical fiber signal transmission rates.
In an optional embodiment, the optical fiber signal receiving apparatus further comprises: a temperature test chip connected to the main processor 22.
And the temperature test chip is used for measuring the temperature of the main processor 22 to obtain a temperature electric signal and sending the temperature electric signal to the main processor 22.
Specifically, for the safety of the device, a temperature test chip is further disposed inside the optical fiber signal receiving device, the temperature test chip is used for measuring the temperature of the main processor 22 in real time, and sending a measured temperature electrical signal to the main processor 22, and a user can use an external control device to query through the RS232 interface 27 to obtain a specific temperature value.
In an optional embodiment, the optical fiber signal receiving apparatus further comprises: an output interface switching button connected to the main processor 22.
And an output interface switching key for receiving an output interface switching instruction of the user and sending the output interface switching instruction to the main processor 22.
The utility model provides an optical fiber signal receiving equipment can dispose video signal's transmission channel through RS232 interface 27, for the maneuverability of reinforcing equipment, can also set up output interface switch button on equipment shell, this button is connected with host processor 22 for support the user through the function of button selection output interface (DVI interface 25 or HDMI interface 26), the utility model discloses do not specifically limit to the concrete appearance form or the quantity of output interface button, the user can set up according to actual demand, the user can set up to entity button or touch button, button quantity can set up to 1 or 2, for example, set up an entity button, when the button is pressed, for DVI interface 25 output, when the button plays the time-out, for HDMI interface 26 output.
In an alternative embodiment, the HDMI transmitter chip 24 includes an L T8618EX chip.
Specifically, L T8618EX is a low-power-consumption HDMI transmitter based on ClearEdge technology, and supports 24-bit color depth HDMI1.4 specification, a chip interface diagram refers to FIG. 4, in the diagram, pins of an HDMI TX PHY module are connected with an HDMI interface 26, and pins of a Video Data Capture DE Gen module are connected with a main processor 22. in addition, L T8618EX chip supports high-definition multimedia interface HDMI1.4 function, 4k @30Hz resolution: 3840x2160@24/25/30, 4096x2160@24, a CEC (Consumer Electronics Control) controller is integrated internally, a pixel clock supports maximum MHz, an input format supports 24bit RGB/YCBCR 4:4: 16/20/24bit BCR 4:2:2, 8/10/12bit YCBCR 4:2:2, and I297 bit BCR 4: 297I2C interface configures read-write register; the digital content protection system supports the HDCP (high bandwidth digital content protection) function, can store an available key set through eeprom, can encrypt when transmitting and transmitting data, ensures that high-definition signals cannot be illegally recorded, and can interfere when a user illegally copies, so that the quality of copied images is reduced, and the content is protected.
In an alternative embodiment, the DVI transmitting chip 23 includes: TFP410PAP chips.
Specifically, the utility model discloses an optical fiber signal receiving equipment chooses for use TI company's TFP410PAP chip, and this chip adopts 3.3V power supply, I2C bus communication, referring to fig. 5, in the chip interface diagram of fig. 5, in fig. 5, the pins of the t.m.d.s Transmitter module are connected to the DVI interface 25, and the other pins are connected to the main processor 22. The TFP410PAP chip supports pixel rates up to 165MHz, including 1080p and WUXGA @60 Hz; and DVI V1.0 interface is supported. Preferably, the present invention utilizes the 24-bit mode of the TFP410PAP chip, the mapping scheme of which is shown in FIG. 6.
In addition, the device adopts a 12V/5A power supply input, the power consumption of the whole board is less than 15W, when the main processor 22 adopts an FPGA + DDR 3L, the power supply is preferably accessed and output by utilizing a QTH connector, and in order to enhance the user experience, a power supply indicator lamp can be arranged for indicating whether the power supply is accessed or not.
To sum up, the utility model provides an optical fiber signal receiving device accords with FC-FS, FC-AV, FC-ADVB protocol specification, accords with ARINC818 protocol specification; the system supports 2 optical fiber interfaces 21 (which are redundant) and 1 DVI digital interface, the DVI interface 25 supports 1920x1080@60Hz resolution at most, and the 1 HDMI digital interface supports 2560 x 1440@30Hz resolution at most; supporting RS232 interface 27 communication; supporting optical fiber communication Class1 and Class3 services; the transmission speed of 1.0625Gbps, 2.125Gbps, 3.1875Gbps and 4.25Gbps supporting optical fiber communication can be realized through software configuration on the basis of the existing hardware structure; the configurable communication rate is realized by a hardware dial switch; support refresh period and resolution self-adaptation; and dynamic display resolution switching display is supported.
Specifically, the resolution supported by the optical fiber signal receiving device mainly includes: 2048 × 1536@30Hz, 2560 × 1440@30Hz, 1920 × 1200@30Hz/60Hz, 1920 × 1080@30Hz/60Hz, 1680 × 1050@30Hz/60Hz, 1600 × 900@30Hz/60Hz, 1400 × 1050@30Hz/60Hz, 1400 × 900@30Hz/60Hz, 1280 × 1024@30Hz/60Hz, 1280 × 960@30Hz/60Hz, 1280 × 720@30Hz/60Hz, 1024 × 30Hz/60Hz, 800 × 600@30Hz/60Hz, 768 × 576@30Hz/60Hz, 600 × 480@30Hz/60 Hz.
Example two
The embodiment of the utility model provides an optical fiber signal receiving system, as shown in fig. 7, this optical fiber signal receiving system includes any kind of optical fiber signal receiving equipment 20 in the above-mentioned embodiment one, still includes: a video playback device 10 and a fiber optic signal transmission device 30.
The optical fiber signal receiving device 20 is configured to convert the optical fiber signal sent by the optical fiber signal sending device 30 into a DVI interface signal or an HDMI interface signal, and send the DVI interface signal or the HDMI interface signal to the video playback device 10.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An optical fiber signal receiving apparatus, comprising: the device comprises an optical fiber interface, a main processor, a DVI sending chip, an HDMI sending chip, a DVI interface and an HDMI interface; the optical fiber interface is connected with the main processor, the DVI sending chip and the DVI interface are sequentially connected, and the main processor, the HDMI sending chip and the HDMI interface are sequentially connected;
the optical fiber interface is used for receiving an optical fiber signal and sending the optical fiber signal to the main processor;
the main processor is used for determining a YCBCR signal or a first RGB signal based on the optical fiber signal when a user selects to output an HDMI interface signal, and sending the YCBCR signal or the first RGB signal to the HDMI sending chip;
the HDMI sending chip is used for determining an HDMI signal based on the YCBCR signal or the first RGB signal and outputting the HDMI signal to video playing equipment through the HDMI;
the main processor is used for determining a gray signal or a second RGB signal based on the optical fiber signal when a user selects to output a DVI interface signal, and sending the gray signal or the second RGB signal to the DVI sending chip;
the DVI sending chip is used for determining DVI interface signals based on the gray signals or the second RGB signals and outputting the DVI interface signals to video playing equipment through the DVI interface.
2. The optical fiber signal receiving apparatus according to claim 1, further comprising: an RS232 interface and an RS232 transceiver; the RS232 interface is connected with the main processor through the RS232 transceiver.
3. The fiber optic signal receiving device of claim 1, wherein the fiber optic interface comprises: the optical fiber connector comprises a first optical fiber interface and a second optical fiber interface, wherein the first optical fiber interface and the second optical fiber interface are mutually redundant.
4. The optical fiber signal receiving device according to claim 3, further comprising: the input interface indicator light and the output interface indicator light are connected with the main processor;
the input interface indicator light is configured to indicate a target optical fiber interface that receives the optical fiber signal, where the target optical fiber interface includes any one of: a first optical fiber interface, a second optical fiber interface;
the output interface indicator light is used for indicating a target interface for outputting a video signal, wherein the target interface comprises any one of the following components: DVI interface, HDMI interface.
5. The optical fiber signal receiving apparatus according to claim 1, further comprising: the temperature test chip is connected with the main processor;
the temperature test chip is used for measuring the temperature of the main processor to obtain a temperature electric signal and sending the temperature electric signal to the main processor.
6. The optical fiber signal receiving apparatus according to claim 1, further comprising: an output interface switching key connected with the main processor;
the output interface switching key is used for receiving an output interface switching instruction of a user and sending the output interface switching instruction to the main processor.
7. The fiber optic signal receiving device of claim 1, wherein the HDMI transmitting chip comprises an L T8618EX chip.
8. The optical fiber signal receiving apparatus of claim 1, wherein the DVI transmitting chip comprises: TFP410PAP chips.
9. The fiber optic signal receiving device of claim 2, wherein the RS232 transceiver comprises: SP3220EEA chip.
10. A fiber-optic signal receiving system comprising the fiber-optic signal receiving device according to any one of claims 1 to 9, further comprising: the system comprises video playing equipment and optical fiber signal sending equipment;
the optical fiber signal receiving equipment is used for converting the optical fiber signal sent by the optical fiber signal sending equipment into a DVI interface signal or an HDMI interface signal and sending the DVI interface signal or the HDMI interface signal to the video playing equipment.
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| CN202020214873.3U CN211128020U (en) | 2020-02-26 | 2020-02-26 | Optical fiber signal receiving apparatus and optical fiber signal receiving system |
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