CN203522951U - Audio/video controller for subway train compartment - Google Patents
Audio/video controller for subway train compartment Download PDFInfo
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- CN203522951U CN203522951U CN201320642474.7U CN201320642474U CN203522951U CN 203522951 U CN203522951 U CN 203522951U CN 201320642474 U CN201320642474 U CN 201320642474U CN 203522951 U CN203522951 U CN 203522951U
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Abstract
The utility model discloses an audio/video controller for a subway train compartment, and the controller comprises: an Ethernet switch module which is used for inputting and outputting an audio/video playing signal; an audio/video coding module which is connected with the Ethernet switch module; a VGA decoding module which is connected with the Ethernet switch module; a VGA signal distribution module which is connected with the VGA decoding module; an audio power amplification module which is connected with the Ethernet switch module; an I/O interface module which is used for building connection with an external passage information system; a control module provided with corresponding control ends which are respectively connected with the I/O interface module, the Ethernet switch module, the audio/video coding module, the VGA decoding module, the VGA signal distribution module, and the audio power amplification module; and a power module which is used for supplying power to each module of the audio/video controller for the subway train compartment. The controller provided by the utility model can achieve the broadcasting of audio/video signals in a compartment, and achieve the outward transmission of the audio/video signals.
Description
Technical field
The utility model relates to audio-video control device, is specifically related to a kind of subway train compartment audio/video controller.
Background technology
Subway train compartment audio/video controller is the control device of the work of being combined with subway train drive chamber audio/video controller, the general input/output terminal as signal in compartment, both need to receive the signal of communication of driver's cabin or train miscellaneous equipment/system, and needed again the signal of equipment in compartment to be sent to the miscellaneous equipment on driver's cabin or train.But, that installs in existing train is generally broadcast extension set, the signal only with reception driver's cabin carries out audio-video-frequency broadcast function, in cannot complete independently compartment as functions such as emergency alarm, video acquisition, intercommunication, multichannel audio-video frequency distribution, and needing other auxiliary equipment jointly to complete under coordinating with the main frame of driver's cabin, net synchronization capability is poor.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of subway train compartment audio/video controller, can realize the broadcast of audio-video signal in compartment and outwards transmit the audio-video signal in compartment.
The purpose of this utility model adopts following technical scheme to realize:
A subway train compartment audio/video controller, comprising:
Ethernet switch module, for input and output audio frequency and video play signal;
Audio/video coding module, is connected with described Ethernet switch module, for the audio-video signal of external camera collection is encoded and transferred to Ethernet switch module;
VGA decoder module, is connected with described Ethernet switch module, for TS Streaming Media signal is decoded, is reduced into VGA vision signal;
VGA signal distribution module, is connected with described VGA decoder module, for VGA vision signal being dispensed to outside different display, shows respectively;
Audio power amplification module, is connected with described Ethernet switch module, for the audio signal of broadcast is amplified and obtained the amplifying signal that can drive loud speaker to sound;
I/O interface module, for connecting with outside passenger information system, and is connected with audio-frequency power amplifier with described VGA decoder module;
Control module, has corresponding control end and is connected with audio power amplification module with I/O interface module, Ethernet switch module, audio/video coding module, VGA decoder module, VGA signal distribution module respectively;
Power module, for providing power supply to the modules of described subway train compartment audio/video controller.
Further, described VGA signal distribution module is two, and each VGA signal distribution module has two VGA VT.
Further, described power module has the power output end of DC24V, ± DC12V and DC5V.
Further, described audio power amplification module has two paths of signals amplification output.
Compared to existing technology, the beneficial effects of the utility model are:
Control module of the present utility model can be passed through Control ethernet switch module, realization is communicated by letter with subway train drive chamber audio/video controller, or by communicating by letter of I/O interface module and passenger information system, obtainable TS Streaming Media signal is decoded in VGA decoder module, for VGA signal distributor, distributes output; Also can obtain the audio signal of broadcast, in audio power amplification module, amplify output; Simultaneously, the audio-video signal that external camera gathers is after audio/video coding module coding, by Ethernet switch module, exported, realized the broadcast of audio-video signal in compartment and outwards transmitted the audio-video signal in compartment, realized audio-video signal in subway train compartment can with the input and output of synchronizeing of audio-video signal driver's cabin transmission or passenger information system transmission; In addition, the quantity of VGA signal distribution module is provided with to be beneficial to be increased a plurality of displays and shows, when the two paths of signals of audio power amplification module amplifies output and is applicable to Dang Yilu and breaks down, another road can work on, and can improve the redundancy of system.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the connection block diagram of the utility model subway train compartment audio/video controller.
Embodiment
A kind of subway train compartment audio/video controller as shown in Figure 1, comprising: Ethernet switch module, audio/video coding module, VGA decoder module, VGA signal distribution module, audio power amplification module, I/O interface module, control module and power module.
Wherein, Ethernet switch module, for input and output audio frequency and video play signal; Audio/video coding module, is connected with Ethernet switch module, for the audio-video signal of external camera collection is encoded and transferred to Ethernet switch module; VGA decoder module, is connected with Ethernet switch module, for TS Streaming Media signal is decoded, is reduced into VGA vision signal; VGA signal distribution module, is connected with VGA decoder module, for VGA vision signal being dispensed to outside different display, shows respectively; Audio power amplification module, is connected with Ethernet switch module, for the audio signal of broadcast is amplified and obtained the amplifying signal that can drive loud speaker to sound; I/O interface module, for connecting with outside passenger information system, and is connected with audio-frequency power amplifier with VGA decoder module; Control module, has corresponding control end and is connected with audio power amplification module with I/O interface module, Ethernet switch module, audio/video coding module, VGA decoder module, VGA signal distribution module respectively; Power module, for providing power supply to the modules of subway train compartment audio/video controller.
The VGA signal distribution module of the present embodiment is two, and each VGA signal distribution module has two VGA VT.Power module has the power output end of DC24V, ± DC12V and DC5V.Audio power amplification module has two paths of signals and amplifies output.
Control module can be passed through Control ethernet switch module, realization is communicated by letter with subway train drive chamber audio/video controller, or by communicating by letter of I/O interface module and passenger information system, obtainable TS Streaming Media signal is decoded in VGA decoder module, for VGA signal distributor, distribute and export; Also can, by the audio signal for broadcasting obtaining, in audio power amplification module, amplify output; Wherein, the correspondence work of audio/video coding module, VGA decoder module, audio power amplification module has also cooperated under the control of control module.
Simultaneously, the audio-video signal that external camera gathers is after audio/video coding module coding, by Ethernet switch module, exported, the audio-video signal in subway train compartment can with the input and output of synchronizeing of audio-video signal driver's cabin transmission or passenger information system transmission; In addition, the quantity of VGA signal distribution module is provided with to be beneficial to be increased a plurality of displays and shows, when the two paths of signals of audio power amplification module amplifies output and is applicable to Dang Yilu and breaks down, another road can work on, and can improve the redundancy of system.
Above-mentioned execution mode is only preferred implementation of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.
Claims (4)
1. a subway train compartment audio/video controller, is characterized in that, comprising:
Ethernet switch module, for input and output audio frequency and video play signal;
Audio/video coding module, is connected with described Ethernet switch module, for the audio-video signal of external camera collection is encoded and transferred to Ethernet switch module;
VGA decoder module, is connected with described Ethernet switch module, for TS Streaming Media signal is decoded, is reduced into VGA vision signal;
VGA signal distribution module, is connected with described VGA decoder module, for VGA vision signal being dispensed to outside different display, shows respectively;
Audio power amplification module, is connected with described Ethernet switch module, for the audio signal of broadcast is amplified and obtained the amplifying signal that can drive loud speaker to sound;
I/O interface module, for connecting with outside passenger information system, and is connected with audio-frequency power amplifier with described VGA decoder module;
Control module, has corresponding control end and is connected with audio power amplification module with I/O interface module, Ethernet switch module, audio/video coding module, VGA decoder module, VGA signal distribution module respectively;
Power module, for providing power supply to the modules of described subway train compartment audio/video controller.
2. subway train according to claim 1 compartment audio/video controller, is characterized in that, described VGA signal distribution module is two, and each VGA signal distribution module has two VGA VT.
3. subway train according to claim 1 compartment audio/video controller, is characterized in that, described power module has the power output end of DC24V, ± DC12V and DC5V.
4. subway train according to claim 1 compartment audio/video controller, is characterized in that, described audio power amplification module has two paths of signals and amplifies output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642474.7U CN203522951U (en) | 2013-10-17 | 2013-10-17 | Audio/video controller for subway train compartment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320642474.7U CN203522951U (en) | 2013-10-17 | 2013-10-17 | Audio/video controller for subway train compartment |
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| Publication Number | Publication Date |
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| CN203522951U true CN203522951U (en) | 2014-04-02 |
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| CN201320642474.7U Expired - Lifetime CN203522951U (en) | 2013-10-17 | 2013-10-17 | Audio/video controller for subway train compartment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810560A (en) * | 2018-06-13 | 2018-11-13 | 青岛海信网络科技股份有限公司 | A kind of rail traffic information live broadcast system and method |
-
2013
- 2013-10-17 CN CN201320642474.7U patent/CN203522951U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108810560A (en) * | 2018-06-13 | 2018-11-13 | 青岛海信网络科技股份有限公司 | A kind of rail traffic information live broadcast system and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |