CN211047046U

CN211047046U - PIS OPS broadcast control device based on optical fiber interface

Info

Publication number: CN211047046U
Application number: CN202020360713.XU
Authority: CN
Inventors: 刘成全; 何懿
Original assignee: Shenzhen Yuyi Technology Co ltd; China Railway Eryuan Engineering Group Co Ltd CREEC
Current assignee: Shenzhen Yuyi Technology Co ltd; China Railway Eryuan Engineering Group Co Ltd CREEC
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-07-17
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses a accuse device is broadcast to PIS OPS based on optical fiber interface, which comprises a housin, the inside of casing is equipped with CPU, and the inside of casing still is equipped with photoelectric conversion chip, and the outside of casing is equipped with OPS interface and optical fiber interface, and CPU connects photoelectric conversion chip, OPS interface and optical fiber interface (L C) respectively.

Description

PIS OPS broadcast control device based on optical fiber interface

Technical Field

The utility model relates to an optical fiber technology field specifically is a accuse device is broadcast to PIS OPS based on optical fiber interface.

Background

In the urban rail transit industry, a Passenger Information System (PIS) is an essential part of informatization construction and generally comprises a central server, a station play controller, a station L CD display screen, network transmission equipment and the like, wherein the PIS central server pushes train running information, live broadcast video streams, emergency text information and the like to the play controller of a station through a station switch by a network technology, and the play controller interprets received contents according to the definition of a current play list and displays corresponding contents on the display screen.

The playing controller used by the traditional subway PIS system is essentially an industrial control computer, has large volume and high power consumption, and can only be installed in a cabinet of a communication equipment room, video playing signals of the playing controller can only be converted into optical signals through an optical terminal and then sent to OPS light receiving cards of various areas in a branching mode, and the OPS light receiving cards are converted into HDMI signals to be displayed on an L CD display screen.

With the development of times, the OPS play controller is widely applied to industries such as advertisement release, education and the like, has low power consumption and small volume, can be installed on a display screen terminal, and provides convenience for displaying differentiated pictures. With the development of communication technology, most current switches are configured with optical fiber interfaces, and the transmission distance and the transmission rate are greatly improved. Based on the above distinguishing technical features, it can be determined that the technical problem actually solved by the claim is: how to display the display picture of the display screen of the passenger information system in the subway industry in a differentiated mode and meeting the requirement of long-distance data communication in the subway scene.

The traditional PIS system broadcast control video signal is transmitted and displayed remotely through an optical transceiver, a broadcast controller is installed in a machine room of communication equipment, a video picture signal synthesized by the broadcast controller is converted into an optical signal through an HDMI optical transceiver, then the optical signal is branched and transmitted to the receiving end of the optical transceiver of an uplink display screen, a downlink display screen and a station hall display screen through optical fibers, and the receiving end receives the optical video signal and converts the optical video signal into an HDMI electrical signal to be displayed on an L CD display screen.

The existing passenger information system playing controller is usually arranged in a machine room, and an L CD screen end is configured with an OPS light receiving card, which has the following disadvantages:

the existing subway OPS light receiving card only converts video signals, has no calculation and storage capacity, and can only receive optical video signals transmitted from a remote place and convert the optical video signals into HDMI signals to be displayed on an L CD display screen.

The signal quality is poor, and the video signal is converted at least twice and finally displayed on the L CD display screen to have the phenomena of frame loss, mosaic and the like.

Currently, with the use of a large number of digital signage and advertising machines, the OPS play controller is widely used, is matched with an L CD display screen for use, is supplied with power through a L CD display screen, only needs a network cable with the outside, has no other external connection lines, and is simple to maintain.

The existing passenger information system switch is installed in a machine room, an L CD screen end is configured with an OPS playing controller, and the switch is accessed to a local area network in a subway station in a mode of configuring an optical fiber transceiver, so that the following defects exist:

the photoelectric converter is required: the existing OPS playing controller in the market is only provided with an RJ45 network port and is not provided with an optical fiber network port, and the transmission distance between the OPS playing controller and an exchanger cannot exceed 100 m; in a subway scene, the distance between a platform display screen and a machine room switch is usually about 200 meters and exceeds 100 meters, the platform display screen and the machine room switch need to be converted into an optical fiber form for transmission, and optical fiber transceivers need to be configured at two ends.

The installation and maintenance workload is large: equipment in the subway station is usually installed on a ceiling, and hidden installation is required in consideration of integral attractiveness; and the number of the photoelectric transceivers is large, and the photoelectric transceivers comprise fiber jumping, wire adjusting and power modules, so that the failure rate is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a accuse device is broadcast to PIS OPS based on optical fiber interface 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 utility model provides a accuse device is broadcast to PIS OPS based on optical fiber interface, includes the casing, the inside of casing is equipped with CPU, and the inside of casing still is equipped with the photoelectric conversion chip, and the outside of casing is equipped with OPS interface and optical fiber interface, and CPU connects photoelectric conversion chip, OPS interface and optical fiber interface respectively.

As a further aspect of the present invention: the inside of the shell is also provided with a memory, and the memory is connected with the CPU.

As a further aspect of the present invention: the inside of casing still is equipped with the hard disk, and the hard disk is connected with CPU.

As a further proposal of the utility model, the optical fiber interface is an L C interface.

As a further aspect of the present invention: the model of the photoelectric conversion chip is 88E 6320.

Compared with the prior art, the utility model has the beneficial effects that 1, the OPS play controller configuration optical fiber interface in the station, place at the display screen front end, the L CD display screen can show independent broadcast picture in a flexible way, no longer can only show the same picture of going upward, down and station three fixed in the room of L CD display screen in the restricted subway station 2, need not to dispose the optic fibre transceiver in the station again, the cost is reduced, the work load of installation and maintenance has been reduced, in addition, unnecessary cable does not have, whole pleasing to the eye effect in the station has been promoted.

Drawings

Fig. 1 is a block diagram of a conventional broadcast controller.

Fig. 2 is a schematic diagram of the interworking between the OPS play-out controller and the switch.

Fig. 3 is a structural diagram of the present invention.

In the figure: 1-photoelectric conversion chip, 2-internal memory, 3-OPS interface, 4-optical fiber interface, 5-CPU and 6-hard disk.

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. 3, in an embodiment of the present invention, an optical fiber interface-based PIS OPS broadcasting control device includes a housing, the inside of the housing is provided with a CPU5, the inside of the housing is further provided with a photoelectric conversion chip 1, the outside of the housing is provided with an OPS interface 3 and an optical fiber interface 4, and the CPU5 is connected to the photoelectric conversion chip 1, the OPS interface 3 and the optical fiber interface 4, respectively.

The inside of the casing is also provided with a memory 2, and the memory 2 is connected with the CPU 5. The inside of the casing is also provided with a hard disk 6, and the hard disk 6 is connected with the CPU 5.

The OPS play controller standard is configured with L C optical fiber interface, the design scheme adopts configuring Marvell 88E6320 photoelectric conversion chip at the back end of the network card (inside the OPS play controller, on the OPS play controller mainboard) to realize photoelectric conversion, and only the form of the optical fiber interface is seen from the appearance.

Example 2: on the basis of the embodiment 1, the OPS playing controller is also provided with a wireless wifi network card and communicates with a station switch in a wireless mode.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a device is broadcast and controlled to PIS OPS based on optical fiber interface, includes the casing, its characterized in that, the inside of casing is equipped with CPU (5), and the inside of casing still is equipped with photoelectric conversion chip (1), and the outside of casing is equipped with OPS interface (3) and optical fiber interface (4), and photoelectric conversion chip (1), OPS interface (3) and optical fiber interface (4) are connected respectively in CPU (5).

2. The device for controlling the PIS OPS based on the optical fiber interface as claimed in claim 1, wherein the inside of the housing is further provided with a memory (2), and the memory (2) is connected with the CPU (5).

3. The device for controlling the PIS OPS based on the optical fiber interface according to claim 1, wherein a hard disk (6) is further provided inside the housing, and the hard disk (6) is connected with the CPU (5).

4. A fiber optic interface-based PIS OPS playback device according to claim 1, wherein the fiber optic interface (4) is an L C interface.

5. The device for controlling the PISs OPS based on the optical fiber interface as claimed in claim 4, wherein the type of the photoelectric conversion chip (1) is 88E 6320.