CN103414530A - Novel guest room server - Google Patents
Novel guest room server Download PDFInfo
- Publication number
- CN103414530A CN103414530A CN2013103161034A CN201310316103A CN103414530A CN 103414530 A CN103414530 A CN 103414530A CN 2013103161034 A CN2013103161034 A CN 2013103161034A CN 201310316103 A CN201310316103 A CN 201310316103A CN 103414530 A CN103414530 A CN 103414530A
- Authority
- CN
- China
- Prior art keywords
- microprocessor
- power amplifier
- guest room
- room server
- down transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a novel guest room server which comprises a microprocessor, a noise detector, an audio coder-decoder, a UIC568 bus, a step-down transformer, a selector switch, a power amplifier and a loudspeaker, wherein the left side and the right side of the microprocessor are connected with the noise detector and the audio coder-decoder respectively, the microprocessor is further connected with the selector switch, the selector switch is connected with the step-down transformer, the step-down transformer is connected with the UIC568 bus, the other end of the selector switch is connected with the power amplifier, the power amplifier is connected with the loudspeaker, and the power amplifier is further connected with the microprocessor. According to the technical scheme, the novel guest room server overcomes the defect that a former product only supports analog audio signal transmission, improves reliability of a broadcast system, and also improves safety of train operation; in addition, the novel guest room server further achieves the function of broadcast volume automatic regulation.
Description
Technical field
The present invention relates to the vehicle-mounted broadcasting system of track traffic, be specifically related to a kind of novel guest room server.
Background technology
UIC568 is a kind of train communication control bus commonly used.For a long time, train-installed broadcast system is by 1, the 2 audio-frequency bus transportation simulator audio signals of UIC568.In case the transmission channel of simulated audio signal occurs abnormal, will cause simulated audio signal can't be transferred to guest room, also just can't normally broadcast.Due to long Distance Transmission, simulated audio signal is prone to decay, distorted signals, lower tone during broadcast.
Along with development in science and technology, ethernet communication has become a kind of communication mode of main flow.Ethernet communication adopts the differential level transmission, has the advantages such as antijamming capability is strong, long transmission distance.Therefore, train-installed broadcast system supports that ethernet communication is a kind of inevitable trend.
In addition, traditional train-installed broadcast system is not supported the automatic adjusting of volume, need to regulate manually volume.Novel guest room server is by the size of monitoring compartment volume, and the gain of microprocessor power ratio control amplifier, realize the automatic adjusting to volume.
Summary of the invention
The object of the invention is to overcome the problem that prior art exists, a kind of novel guest room server is provided.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of novel guest room server, comprise microprocessor, noise detector, audio coder-decoder, the UIC568 bus, step-down transformer, diverter switch, power amplifier and loud speaker, the left and right sides of described microprocessor is connected with described audio coder-decoder with described noise detector respectively, described microprocessor also is connected with described diverter switch, described diverter switch is connected with described step-down transformer, described step-down transformer is connected with described UIC568 bus, the other end of described diverter switch is connected with described power amplifier, described power amplifier is connected with described loud speaker, described power amplifier also is connected with described microprocessor.
Further, described microprocessor is connected with Ethernet; Described audio coder-decoder is connected with described diverter switch.
Beneficial effect of the present invention:
Novel guest room server adopts analog-and digital-double copies design, acquiescence adopts the simulated audio signal transmission, when the analog channel fault, automatically switch to digital channel, overcome product in the past and only supported the drawback that simulated audio signal transmits, strengthen the reliability of broadcast system, also improved the fail safe of train operation.In addition, this system has also realized the function that the broadcast volume is regulated automatically.
Concrete: novel guest room server is through actual test, and when 1,2 audio-frequency bus of UIC568 bus broke down, system can be switched to ethernet communication in 1ms, by the Ethernet received audio signal, did not affect the normal broadcast of broadcast system.In addition, the microprocessor of system, by the volume in the audio signal Real-Time Monitoring compartment of sampling noiset detector, has been realized automatically regulating in real time volume by the gain of controlling power amplifier.
Broadcast system adopts this novel guest room server, and while due to 1,2 audio-frequency bus when the UIC568 bus, breaking down, broadcast system still can work, and has not only improved the fail safe of train operation, has also reduced the maintenance cost of train.
The accompanying drawing explanation
Fig. 1 is system framework schematic diagram of the present invention.
Number in the figure explanation: 1, microprocessor, 2, noise detector, 3, audio coder-decoder, 4, Ethernet, 5, the UIC568 bus, 6, step-down transformer, 7, diverter switch, 8, power amplifier, 9, loud speaker.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
With reference to shown in Figure 1, a kind of novel guest room server, comprise microprocessor 1, noise detector 2, audio coder-decoder 3, UIC568 bus 5, step-down transformer 6, diverter switch 7, power amplifier 8 and loud speaker 9, the left and right sides of described microprocessor 1 is connected with described audio coder-decoder 3 with described noise detector 2 respectively, described microprocessor 1 also is connected with described diverter switch 7, described diverter switch 7 is connected with described step-down transformer 6, described step-down transformer 6 is connected with described UIC568 bus 5, the other end of described diverter switch 7 is connected with described power amplifier 8, described power amplifier 8 is connected with described loud speaker 9, described power amplifier 8 also is connected with described microprocessor 1.
Further, described microprocessor 1 is connected with Ethernet 4; Described audio coder-decoder 3 is connected with described diverter switch 7.
Principle of the present invention:
What 1,2 audio-frequency bus of UIC568 bus 5 transmitted is after transformer boosts, to carry out the simulated audio signal of level pressure transmission, is transferred to the guest room server and first through step-down transformer 6, is depressured to the simulated audio signal of effective value 2V left and right.Simulated audio signal after step-down inputs to audio frequency power amplifier after diverter switch 7, through power amplification rear drive loud speaker 9.Simulated audio signal after step-down also is transferred to the analog-to-digital conversion input of microprocessor 1 simultaneously.In normal broadcasting process, the state of 1,2 audio-frequency bus of microprocessor 1 Real-Time Monitoring UIC568 bus 5.If microprocessor 1 monitoring, less than simulated audio signal, judges UIC568 bus 5 faults, microprocessor 1 is controlled diverter switch 7 input of audio frequency power amplifier is switched to the audio signal source from Ethernet 4.
After digital audio and video signals arrival guest room server by Ethernet 4 transmission, the digital audio and video signals that microprocessor 1 will receive is reduced to simulated audio signal by audio coder-decoder 3.If microprocessor 1 detects UIC568 bus 5 faults, control diverter switch 7 audio signal input end of audio frequency power amplifier is switched to the audio signal source from Ethernet 4.
The audio signal of noise detector 2 outputs is after amplifier is amplified, after halfwave rectifier, be input to again the analog-to-digital conversion input of microprocessor 1, the size of microprocessor 1 monitoring compartment volume, realize the automatic adjusting to volume by the gain control making pin of controlling power amplifier chips.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (2)
1. novel guest room server, comprise microprocessor (1), noise detector (2), audio coder-decoder (2), UIC568 bus (5), step-down transformer (6), diverter switch (7), power amplifier (8) and loud speaker (9), it is characterized in that, the left and right sides of described microprocessor (1) is connected with described audio coder-decoder (2) with described noise detector (2) respectively, described microprocessor (1) also is connected with described diverter switch (7), described diverter switch (7) is connected with described step-down transformer (6), described step-down transformer (6) is connected with described UIC568 bus (5), the other end of described diverter switch (7) is connected with described power amplifier (8), described power amplifier (8) is connected with described loud speaker (9), described power amplifier (8) also is connected with described microprocessor (1).
2. novel guest room according to claim 1 server, is characterized in that, described microprocessor (1) is connected with Ethernet (4); Described audio coder-decoder (3) is connected with described diverter switch (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103161034A CN103414530A (en) | 2013-07-25 | 2013-07-25 | Novel guest room server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103161034A CN103414530A (en) | 2013-07-25 | 2013-07-25 | Novel guest room server |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103414530A true CN103414530A (en) | 2013-11-27 |
Family
ID=49607518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103161034A Pending CN103414530A (en) | 2013-07-25 | 2013-07-25 | Novel guest room server |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103414530A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103763053A (en) * | 2014-01-07 | 2014-04-30 | 株洲南车时代电气股份有限公司 | Broadcast controller and train broadcast control system |
| CN105451148A (en) * | 2015-01-15 | 2016-03-30 | 西安原创电子科技有限公司 | Broadcasting-signal-preferred multimedia teaching power amplifier |
| CN105857345A (en) * | 2016-06-03 | 2016-08-17 | 上海友森信息科技发展有限公司 | Train broadcasting system |
| CN107046662A (en) * | 2017-06-20 | 2017-08-15 | 北京贝能达信息技术股份有限公司 | Track traffic broadcast multi-channel noise detection volume controller and control method |
| CN111107396A (en) * | 2019-12-31 | 2020-05-05 | 斑马网络技术有限公司 | Hardware-based vehicle audio remote output method, device and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101567731A (en) * | 2009-06-03 | 2009-10-28 | 北京华高世纪科技股份有限公司 | Digital broadcasting system on train and implementation method thereof |
| CN101616289A (en) * | 2008-12-12 | 2009-12-30 | 青岛四方车辆研究所有限公司 | Passenger information system |
| CN101738953A (en) * | 2009-11-16 | 2010-06-16 | 青岛四方车辆研究所有限公司 | Compartment controller of passenger information system |
| CN202003173U (en) * | 2010-12-13 | 2011-10-05 | 青岛四方车辆研究所有限公司 | Coach controller for passenger information system of train |
| CN102904656A (en) * | 2012-09-28 | 2013-01-30 | 天津市北海通信技术有限公司 | Digital train broadcasting transmitter |
| CN202856747U (en) * | 2012-09-28 | 2013-04-03 | 天津市北海通信技术有限公司 | Digital train broadcasting machine |
-
2013
- 2013-07-25 CN CN2013103161034A patent/CN103414530A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101616289A (en) * | 2008-12-12 | 2009-12-30 | 青岛四方车辆研究所有限公司 | Passenger information system |
| CN101567731A (en) * | 2009-06-03 | 2009-10-28 | 北京华高世纪科技股份有限公司 | Digital broadcasting system on train and implementation method thereof |
| CN101738953A (en) * | 2009-11-16 | 2010-06-16 | 青岛四方车辆研究所有限公司 | Compartment controller of passenger information system |
| CN202003173U (en) * | 2010-12-13 | 2011-10-05 | 青岛四方车辆研究所有限公司 | Coach controller for passenger information system of train |
| CN102904656A (en) * | 2012-09-28 | 2013-01-30 | 天津市北海通信技术有限公司 | Digital train broadcasting transmitter |
| CN202856747U (en) * | 2012-09-28 | 2013-04-03 | 天津市北海通信技术有限公司 | Digital train broadcasting machine |
Non-Patent Citations (3)
| Title |
|---|
| 中华人民共和国铁道部: "《中华人民共和国铁道行业标准TB/T3116-2005》", 27 June 2005 * |
| 周金萍等: "100%低地板现代有轨电车pis系统研究", 《中国新技术新产品》 * |
| 阮芳芳: "列车广播系统控制器的设计及实现", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103763053A (en) * | 2014-01-07 | 2014-04-30 | 株洲南车时代电气股份有限公司 | Broadcast controller and train broadcast control system |
| CN105451148A (en) * | 2015-01-15 | 2016-03-30 | 西安原创电子科技有限公司 | Broadcasting-signal-preferred multimedia teaching power amplifier |
| CN105857345A (en) * | 2016-06-03 | 2016-08-17 | 上海友森信息科技发展有限公司 | Train broadcasting system |
| CN107046662A (en) * | 2017-06-20 | 2017-08-15 | 北京贝能达信息技术股份有限公司 | Track traffic broadcast multi-channel noise detection volume controller and control method |
| CN111107396A (en) * | 2019-12-31 | 2020-05-05 | 斑马网络技术有限公司 | Hardware-based vehicle audio remote output method, device and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103532651B (en) | A kind of digital broadcasting system on train of high reliability | |
| CN103414530A (en) | Novel guest room server | |
| CN106952650B (en) | A kind of train voice amplifying unit based on ARM+FPGA framework | |
| CN103684854B (en) | A kind of train global function numerical model analysis intelligent broadcast system | |
| CN103763053B (en) | Broadcast controller and train broadcast control system | |
| CN104158614B (en) | A kind of passenger train broadcast controlling method | |
| CN104468146B (en) | The broadcast intercom system of IP based network | |
| CN104536718A (en) | Method for directly transmitting audio materials in multiple paths to different audio devices based on android | |
| CN104113455A (en) | Cab server | |
| CN203691425U (en) | Novel passenger alarm | |
| CN104010252A (en) | Automatic sound-reinforcement volume adjusting method | |
| CN104113385A (en) | Central controller of vehicle-mounted broadcasting equipment | |
| CN206611415U (en) | A kind of multi-party full duplex intercom system of subway train | |
| CN102602346A (en) | Method for automatically switching audio and video signals of bus | |
| CN109660435A (en) | A kind of control method of cab integrated radio communication | |
| CN202856694U (en) | Prime amplifier used for broadcasting system of railway station | |
| CN203522951U (en) | Audio/video controller for subway train compartment | |
| CN202050418U (en) | Broadcasting extension of train passenger compartment | |
| CN205666921U (en) | Passenger train digital broadcast intercom device | |
| CN205320264U (en) | Bluetooth sound system | |
| CN205305099U (en) | Multi -purpose audio -visual education programme active audio amplifier | |
| CN203912130U (en) | Auxiliary adapterization system of wireless ultra wide band microphone | |
| CN103401518A (en) | Digital power amplifier unit of passenger compartment | |
| CN202617332U (en) | Network digital audio transmission board and audio network system | |
| CN205584391U (en) | Remote monitering system of family based on FPGA technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131127 |