CN210536779U - HDMI optical signal receiving converter based on rail transit - Google Patents

Abstract

The utility model discloses a HDMI optical signal receiving converter based on track traffic, which comprises a shell and a built-in circuit board, wherein an optical signal interface, a photoelectric interface, an RJ net port, a DB serial port, a USB interface and an LED signal lamp are arranged on the side edge of the shell; the built-in circuit board is welded with a control chip, a data processor, a memory, an audio decoder, a clock generator, a signal transmitter, a signal distributor and a flash memory; this HDMI light signal reception converter based on track traffic turns into standard HDMI signal, LVDS signal with light signal, adopts standard OPS to define and makes whole equipment embedded in the LCD display, simultaneously, uses light reception converter and light signal transmission converter 3 are supporting, forms independent HDMI light transmission system framework to use high definition video signal to receive and divide the screen ware product, can reduce the wiring complexity, extension transmission distance realizes multi-stage transmission.

Description

HDMI optical signal receiving converter based on rail transit

Technical Field

The utility model relates to a track traffic technical field specifically is HDMI light signal reception converter based on track traffic.

Background

At present, the requirement on the resolution ratio of multimedia video signals in the field of rail transit is higher and higher, the transmission distance is longer and longer, the traditional HDMI direct output scheme is used, the transmission distance is limited, and the signals are easily interfered; and a plurality of transmission lines are needed to realize the display of a plurality of devices, and the wiring is complex.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a HDMI light signal reception converter based on track traffic can reduce the wiring complexity, and extension transmission distance realizes multistage transmission to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the HDMI optical signal receiving converter based on the rail transit comprises a shell and a built-in circuit board, wherein the built-in circuit board is embedded in the shell, and an optical signal interface, a photoelectric interface, an RJ network port, a DB serial port, a USB interface and an LED signal lamp are arranged on the side edge of the shell; the built-in circuit board is welded with a control chip, a data processor, a memory, an audio decoder, a clock generator, a signal transmitter, a signal distributor and a flash memory; one pin output end of the control chip is connected with the LED signal lamp and the photoelectric interface, and the other pin end of the control chip is bidirectionally connected with the RJ network port, the DB serial port and the USB interface; the control chip is also connected with the data processor, and the pin end of the data processor is bidirectionally connected with the photoelectric interface, the memory and the flash memory; the pin input end of the data processor is also connected with the clock generator, and the pin output end is connected with the audio decoder and the signal transmitter; the other end of the audio decoder is connected with a PS interface arranged on the shell; the other end of the signal transmitter is respectively connected with the control chip and the signal distributor in a bidirectional mode, and the other end of the signal distributor is connected with the optical signal interface.

Preferably, the optical signal interface is connected with the optical signal transmission converter through optical fiber conduction, and the optical signal transmission converter is connected with the multimedia host.

Preferably, the photoelectric interface is connected with an LCD screen.

Preferably, the model of the control chip is STM32F107VCT 6.

Preferably, the data processor is of the type XS6SLX45T-3FGG 484C.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this HDMI light signal receives converter based on track traffic turns into standard HDMI signal, LVDS signal with light signal, adopts standard OPS to define and makes whole equipment embedded in the LCD display, simultaneously, uses light signal reception converter and light signal transmission converter are supporting, forms independent HDMI light transmission system framework to use high definition video signal to receive and divide the screen ware product, can reduce the wiring complexity, extension transmission distance realizes multi-stage transmission.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the built-in circuit board of the present invention;

fig. 3 is a usage state diagram of the present invention.

In the figure: 1. a housing; 101. an optical signal interface; 102. an opto-electrical interface; 103. an RJ port; 104. DB9 serial port; 105. a USB interface; 106. an LED signal lamp; 107. a PS interface; 2. a built-in circuit board; 201. A control chip; 202. a data processor; 203. a memory; 204. an audio decoder; 205. a clock generator; 206. a signal transmitter; 207. a signal distributor; 208. a flash memory; 3. an optical signal transmission converter; 4. a multimedia host; 5. an LCD screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the HDMI optical signal receiving converter based on rail transit includes a housing 1 and a built-in circuit board 2, the built-in circuit board 2 is embedded in the housing 1, and an optical signal interface 101, an optical electrical interface 102, an RJ network port 103, a DB9 serial port 104, a USB interface 105 and an LED signal lamp 106 are arranged on a side of the housing 1; a control chip 201, a data processor 202, a memory 203, an audio decoder 204, a clock generator 205, a signal transmitter 206, a signal distributor 207 and a flash memory 208 are welded on the built-in circuit board 2; one pin output end of the control chip 201 is connected with the LED signal lamp 106 and the photoelectric interface 102, and the other pin end is bidirectionally connected with the RJ network port 103, the DB9 serial port 104 and the USB interface 105; the control chip 201 is further connected with the data processor 202, and the pin terminal of the data processor 202 is bidirectionally connected with the optoelectronic interface 102, the memory 203 and the flash memory 208; the pin input end of the data processor 202 is also connected with the clock generator 205, and the pin output end is connected with the audio decoder 204 and the signal transmitter 206; the other end of the audio decoder 204 is connected with the PS interface 107 arranged on the housing 1; the other end of the signal transmitter 206 is bidirectionally connected to the control chip 201 and the signal distributor 207, respectively, and the other end of the signal distributor 207 is connected to the optical signal interface 101.

In the above embodiment, the optical signal interface 101 is connected to the optical signal transmission converter 3 through optical fiber conduction, the optical signal transmission converter 3 is connected to the multimedia host 4, and the multimedia host 4 and the optical signal transmission converter 3 are used in a matching manner, so that long-distance transmission and signal cascade and series connection can be realized, and the optical signal transmission system is suitable for various complex optical transmission links.

In the above described embodiment, the opto-electronic interface 102 is connected to the LCD screen 5.

In the above embodiment, the model of the control chip 201 is STM32F107VCT6, and is configured to receive related information (USART, USB communication information, control information, and data transmission channel), and implement a part of control functions and data forwarding.

In the above embodiment, the data processor 202 has model XS6SLX45T-3FGG484C, and is used for integrating the related information (control information, optical signal), decoding the optical signal and outputting the optical signal as the HDMI audio-video part and the extra audio part, and the signal of the whole data processor 202 is transmitted in both directions.

The working principle is as follows: in the HDMI optical signal receiving converter based on rail transit, an HDMI signal output from a multimedia host 4 is converted into an optical signal through an optical signal transmission converter 3, the optical signal is transmitted through an optical fiber, the optical fiber is connected to an optical splitter (1-time-division-multiple-device) and then is connected to an optical signal receiving converter through an optical fiber cable, the optical signal is converted into a standard HDMI signal, and the standard HDMI signal is connected to two display LCD screens 5 through HDMI short wires; in addition, the high-definition video signal receiving screen splitter enables the received optical signals to pass through the optical fiber module and to be looped out to the next stage, signal series connection is achieved, and multi-stage transmission is achieved.

In summary, the following steps: this HDMI light signal receives converter based on track traffic turns into standard HDMI signal, LVDS signal with light signal, adopts standard OPS to define and makes whole equipment embedded in the LCD display, simultaneously, with light signal reception converter and the supporting use of light signal transmission converter 3, form independent HDMI light transmission system framework, and use high definition video signal to receive and divide the screen ware product, can reduce the wiring complexity, the extension transmission distance realizes multi-stage transmission.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. HDMI light signal reception converter based on track traffic, including casing (1) and built-in circuit board (2), its characterized in that: the built-in circuit board (2) is embedded in the shell (1), and an optical signal interface (101), a photoelectric interface (102), an RJ network port (103), a DB9 serial port (104), a USB interface (105) and an LED signal lamp (106) are arranged on the side edge of the shell (1); a control chip (201), a data processor (202), a memory (203), an audio decoder (204), a clock generator (205), a signal transmitter (206), a signal distributor (207) and a flash memory (208) are welded on the built-in circuit board (2); one pin output end of the control chip (201) is connected with the LED signal lamp (106) and the photoelectric interface (102), and the other pin end is bidirectionally connected with the RJ network port (103), the DB9 serial port (104) and the USB interface (105); the control chip (201) is also connected with the data processor (202), and pin ends of the data processor (202) are bidirectionally connected with the photoelectric interface (102), the memory (203) and the flash memory (208); the pin input end of the data processor (202) is also connected with a clock generator (205), and the pin output end is connected with an audio decoder (204) and a signal transmitter (206); the other end of the audio decoder (204) is connected with a PS interface (107) arranged on the shell (1); the other end of the signal transmitter (206) is respectively connected with the control chip (201) and the signal distributor (207) in a bidirectional mode, and the other end of the signal distributor (207) is connected with the optical signal interface (101).

2. The HDMI optical signal reception converter based on rail transit of claim 1, wherein: the optical signal interface (101) is connected with the optical signal transmission converter (3) through optical fiber conduction, and the optical signal transmission converter (3) is connected with the multimedia host (4).

3. The HDMI optical signal reception converter based on rail transit of claim 1, wherein: the photoelectric interface (102) is connected with the LCD screen (5).

4. The HDMI optical signal reception converter based on rail transit of claim 1, wherein: the model of the control chip (201) is STM32F107VCT 6.

5. The HDMI optical signal reception converter based on rail transit of claim 1, wherein: the data processor (202) is of the type XS6SLX45T-3FGG 484C.

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