CN202856749U - Main control panel of train broadcasting machine - Google Patents
Main control panel of train broadcasting machine Download PDFInfo
- Publication number
- CN202856749U CN202856749U CN 201220506330 CN201220506330U CN202856749U CN 202856749 U CN202856749 U CN 202856749U CN 201220506330 CN201220506330 CN 201220506330 CN 201220506330 U CN201220506330 U CN 201220506330U CN 202856749 U CN202856749 U CN 202856749U
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- control module
- volume control
- broadcast
- monitoring
- audio
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Abstract
The utility model provides a main control panel of a train broadcasting machine. The main control panel includes a CPU control circuit, an audio selection and volume control module, an information source portion and a monitoring volume control module. A wireless broadcast detection module, an NTC sampling unit, an ARM board serial port, and a power-amplification state and control module are respectively connected with an input end of the CPU control circuit; an output end of the CPU control circuit is connected with an analog switch, the audio selection and volume control module and the monitoring volume control module; an output end of the audio selection and volume control module is connected with an effect switching control module and the monitoring volume control module; the information source portion is connected with an AMR speech recording unit through the analog switch; an emergency broadcast control module is connected with microphone broadcast audio through a switch; and a GPS serial port is connected with the ARM board serial port. The main control panel of the utility model is advantageous in functions such as emergency broadcasting, monitoring and source selection, structural simplicity, convenient use, multiple functions, improved reliability of broadcasting.
Description
Technical field
The utility model belongs to the voice broadcast service field, especially relates to a kind of train broadcast transmitter master board.
Background technology
Train broadcast transmitter is used for train, the passenger is issued relevant broadcasts information, train broadcast transmitter is analog broadcasting equipment in existing technology, the functions such as mouth is broadcast, radio reception, broadcast tape are only arranged, the broadcast work amount of labour is large, tired phenomenon of makeing mistakes occurs easily, have the technical problems such as function is incomplete, performance is not up to standard.
Summary of the invention
Problem to be solved in the utility model provides a kind of train broadcast transmitter master board, is particluarly suitable for using in the TBA-2880 type broadcasting for train.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of train broadcast transmitter master board, comprise cpu control circuit, audio selection and volume control module, information source part and monitoring volume control module, the signal output part of described information source part links to each other with the input of described audio selection and volume control module, the radio broadcasting detection module, the NTC sampling, the output of ARM plate serial ports and power amplifier state and the control module respectively input of described cpu control circuit links to each other, described ARM plate serial ports links to each other with the program debugging interface, the output of described cpu control circuit respectively with analog switch, audio selection and volume control module link to each other with the input of monitoring volume control module, the output of described audio selection and volume control module links to each other with the input of effect switching controls module, the output of described audio selection and volume control module links to each other by pre-listening with the monitoring volume control module, described effect switching controls module links to each other with standby power amplifier broadcast module with main power amplifier broadcast module respectively, monitor audio signal and be input to respectively monitoring volume control module and output display module, the output of described monitoring volume control module links to each other with monitoring loudspeaker by monitoring power amplifier, radio audio frequency L in the described information source part, radio audio frequency R, the microphone broadcast audio, the wireless microphone broadcast audio links to each other with the AMR recording by analog switch, the emergent broadcast control module links to each other with the microphone broadcast audio by switch, and the GPS serial ports links to each other with described ARM plate serial ports.
Further, described information source partly comprises microphone broadcast audio, wireless microphone broadcast audio, phonetic synthesis broadcast audio L, phonetic synthesis broadcast audio R, radio audio frequency L and radio audio frequency R.
Further, the signal of described phonetic synthesis broadcast audio L, voice broadcast service audio frequency R, radio audio frequency L and radio audio frequency R input is dual track, by the adder addition.
Further, recording is set in the described cpu control circuit selects circuit, can select microphone, broadcast receiver etc. are as the recording information source.
Further, described cpu control circuit chip model is STC90C58AD, and described information source chip model is TEA6320, and described monitoring power amplifier chips model is TDA7052, and it is PT2257 that the chip model is listened in described monitoring in advance.
Further, required power supply :+12V in the train broadcast transmitter master board ,+5V ,-5V ,+9V ,+3.3V.
Described ARM plate employing+5V power supply adopts the great safe YMD20-48S05 of benefit to power separately.
+ 12V power supply supplies amplifier and becomes other power supplys, adopts the great safe YD10-48S12 of benefit.
+ 9V electricity: mainly supply the TEA6320 chip, adopt LM7809 to be become by+12V.
CPU, TDA7052, PT2257, relay, the usefulness+5V such as GPS adopts TL2575-5.0V, is gone out by+12V conversion.
Broadcast receiver adopts the 3.3V power supply, adopts voltage stabilizing didoe to obtain by after+5V the step-down.
-5V electricity: supply rectification circuit etc., required electric current is less.Go out with the tps60400 conversion from+5V.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, this mainboard is used for control, coordinates the normal operation of broadcasting for train whole system, has the functions such as emergent broadcast, monitoring, information source selection; Have the advantages such as simple in structure, easy to use, diverse in function, raising broadcasting reliability.
Description of drawings
Fig. 1 is the schematic diagram of a kind of train broadcast transmitter master board of the utility model;
Fig. 2 is the power supply schematic diagram of a kind of train broadcast transmitter master board of the utility model.
Embodiment
As shown in Figure 1, a kind of train broadcast transmitter master board of the utility model, comprise cpu control circuit, audio selection and volume control module, information source part and monitoring volume control module, recording is set in the described cpu control circuit selects circuit, can select microphone, broadcast receivers etc. are as the recording information source, described information source partly comprises the microphone broadcast audio, the wireless microphone broadcast audio, phonetic synthesis broadcast audio L, phonetic synthesis broadcast audio R, radio audio frequency L and radio audio frequency R, described phonetic synthesis broadcast audio L, voice broadcast service audio frequency R, the signal of radio audio frequency L and radio audio frequency R input is dual track, by the adder addition, the signal output part of described information source part links to each other with the input of described audio selection and volume control module, the radio broadcasting detection module, the NTC sampling, the output of ARM plate serial ports and power amplifier state and the control module respectively input of described cpu control circuit links to each other, described ARM plate serial ports links to each other with the program debugging interface, the output of described cpu control circuit respectively with analog switch, audio selection and volume control module link to each other with the input of monitoring volume control module, the output of described audio selection and volume control module links to each other with the input of effect switching controls module, the output of described audio selection and volume control module links to each other by pre-listening with the monitoring volume control module, described effect switching controls module links to each other with standby power amplifier broadcast module with main power amplifier broadcast module respectively, monitor audio signal and be input to respectively monitoring volume control module and output display module, the output of described monitoring volume control module links to each other with monitoring loudspeaker by monitoring power amplifier, radio audio frequency L in the described information source part, radio audio frequency R, the microphone broadcast audio, the wireless microphone broadcast audio links to each other with the AMR recording by analog switch, the emergent broadcast control module links to each other with the microphone broadcast audio by switch, the GPS serial ports links to each other with described ARM plate serial ports, and described cpu control circuit chip model is STC90C58AD.Described information source chip model is TEA6320, and described monitoring power amplifier chips model is TDA7052, and described monitoring listens the chip model to be in advance: PT2257.As shown in Figure 2, required power supply :+12V in the train broadcast transmitter master board ,+5V ,-5V ,+9V ,+3.3V.Described ARM plate employing+5V power supply adopts the great safe YMD20-48S05 of benefit to power separately.+ 12V power supply supplies amplifier and becomes other power supplys, adopts the great safe YD10-48S12 of benefit.+ 9V electricity: mainly supply the TEA6320 chip, adopt LM7809 to be become by+12V.CPU, TDA7052, PT2257, relay, the usefulness+5V such as GPS adopts TL2575-5.0V, is gone out by+12V conversion.Broadcast receiver adopts the 3.3V power supply, adopts voltage stabilizing didoe to obtain by after+5V the step-down.-5V electricity: for rectification circuit etc., required electric current is less, goes out with the tps60400 conversion from+5V.
The course of work of this example: during train broadcast transmitter master board work, signal in the information source part enters audio selection and volume control module, the audio signal of audio selection and volume control module output enters monitors volume control module and effect switching controls module, effect switching controls module exports respectively main power amplifier broadcast voice signal and standby power amplifier broadcast voice signal arrives main power amplifier broadcast module and standby power amplifier broadcast module, finish the processing of broadcast audio, the wireless microphone broadcast audio enters signal and the NTC sampled signal of exporting behind the radio broadcasting detection module, the signal of power amplifier state and control module output, the signal of ARM plate serial ports output enters cpu control circuit together, the control signal of cpu control circuit output enters audio selection and volume control module and monitoring volume control module, the monitoring signal of monitoring volume control module output enters monitoring loudspeaker by monitoring power amplifier, finish the processing of monitoring audio frequency, when being in an emergency, the emergent broadcast control module starts, the microphone broadcast audio is directly exported, process by above signal, realize the function of train broadcast transmitter.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (3)
1. train broadcast transmitter master board, it is characterized in that: comprise cpu control circuit, audio selection and volume control module, information source part and monitoring volume control module, the signal output part of described information source part links to each other with the input of described audio selection and volume control module, the radio broadcasting detection module, the NTC sampling, the output of ARM plate serial ports and power amplifier state and the control module respectively input of described cpu control circuit links to each other, described ARM plate serial ports links to each other with the program debugging interface, the output of described cpu control circuit respectively with analog switch, audio selection and volume control module link to each other with the input of monitoring volume control module, the output of described audio selection and volume control module links to each other with the input of effect switching controls module, the output of described audio selection and volume control module links to each other by pre-listening with the monitoring volume control module, described effect switching controls module links to each other with standby power amplifier broadcast module with main power amplifier broadcast module respectively, monitor audio signal and be input to respectively monitoring volume control module and output display module, the output of described monitoring volume control module links to each other with monitoring loudspeaker by monitoring power amplifier, radio audio frequency L in the described information source part, radio audio frequency R, the microphone broadcast audio, the wireless microphone broadcast audio links to each other with the AMR recording by analog switch, the emergent broadcast control module links to each other with the microphone broadcast audio by switch, and the GPS serial ports links to each other with described ARM plate serial ports.
2. a kind of train broadcast transmitter master board according to claim 1 is characterized in that: recording is set in the described cpu control circuit selects circuit.
3. a kind of train broadcast transmitter master board according to claim 1, it is characterized in that: described cpu control circuit chip model is STC90C58AD, described information source chip model is TEA6320, and described monitoring power amplifier chips model is TDA7052, and it is PT2257 that the chip model is listened in described monitoring in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506330 CN202856749U (en) | 2012-09-28 | 2012-09-28 | Main control panel of train broadcasting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506330 CN202856749U (en) | 2012-09-28 | 2012-09-28 | Main control panel of train broadcasting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202856749U true CN202856749U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220506330 Expired - Fee Related CN202856749U (en) | 2012-09-28 | 2012-09-28 | Main control panel of train broadcasting machine |
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| CN (1) | CN202856749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427923A (en) * | 2013-08-15 | 2013-12-04 | 天津市北海通信技术有限公司 | Control unit of emergency broadcast |
-
2012
- 2012-09-28 CN CN 201220506330 patent/CN202856749U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427923A (en) * | 2013-08-15 | 2013-12-04 | 天津市北海通信技术有限公司 | Control unit of emergency broadcast |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |