CN102904659A - Main control panel of train broadcasting transmitter - Google Patents
Main control panel of train broadcasting transmitter Download PDFInfo
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- CN102904659A CN102904659A CN 201210372284 CN201210372284A CN102904659A CN 102904659 A CN102904659 A CN 102904659A CN 201210372284 CN201210372284 CN 201210372284 CN 201210372284 A CN201210372284 A CN 201210372284A CN 102904659 A CN102904659 A CN 102904659A
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Abstract
The invention provides a main control panel of a train broadcasting transmitter. The main control panel comprises a CPU (Central Processing Unit) control circuit, an audio selection and volume control module, an information source part and a monitoring volume control module, wherein a wireless radio detection module, an NTC sampler, an ARM board serial port and a power amplifier state and control module input signals to the CPU control circuit, respectively; the CPU control circuit inputs the signals to an analogue switch, the audio selection and volume control module and the monitoring volume control module, respectively; the audio selection and volume control module inputs the output signal to an efficacy switching control module and the monitoring volume control module; the signal of the information source part is input to the AMR for recording through the analogue switch; an emergency broadcasting control module is connected with microphone broadcasting audios through a switch; and a GPS (Global Positioning System) serial port is connected with the ARM board serial port. The main control panel of the train broadcasting transmitter has the beneficial effects of having functions of emergency broadcasting, monitoring, information source selection and the like, and is simple in structure, convenient to use, varied in functions, capable of improving broadcasting reliability and the like.
Description
Technical field
The invention belongs to the voice broadcast service field, especially relate 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
The problem to be solved in the present invention 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 used in the present invention 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 of described information source part is input to described audio selection and volume control module, the radio broadcasting detection module, the NTC sampling, ARM plate serial ports and power amplifier state and control module are input to signal respectively the input of described cpu control circuit, described ARM plate serial ports links to each other with the program debugging interface, the output of described cpu control circuit is input to respectively analog switch with control signal, audio selection and volume control module and monitoring volume control module, described audio selection and volume control module are input to effect switching controls module with the audio signal of output, described audio selection and volume control module are input to the monitoring volume control module with the audio signal of output by pre-listening, 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, described monitoring volume control module is input to monitoring loudspeaker with the monitoring signal of output by monitoring power amplifier, radio audio frequency L in the described information source part, radio audio frequency R, the microphone broadcast audio, wireless microphone broadcast audio and control signal are input to 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.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.
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: for rectification circuit etc., required electric current is less, goes out with the tps60400 conversion from+5V.
Advantage and good effect that the present invention 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 present invention;
Fig. 2 is the power supply schematic diagram of a kind of train broadcast transmitter master board of the present invention.
Embodiment
As shown in Figure 1, a kind of train broadcast transmitter master board of the present invention, 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 of described information source part is input to described audio selection and volume control module, the radio broadcasting detection module, the NTC sampling, ARM plate serial ports and power amplifier state and control module are input to signal respectively the input of described cpu control circuit, described ARM plate serial ports links to each other with the program debugging interface, the output of described cpu control circuit is input to respectively analog switch with control signal, audio selection and volume control module and monitoring volume control module, described audio selection and volume control module are input to effect switching controls module with the audio signal of output, described audio selection and volume control module are input to the monitoring volume control module with the audio signal of output by pre-listening, 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 monitoring volume control module and output display module, described monitoring volume control module is input to monitoring loudspeaker with the monitoring signal of output by monitoring power amplifier, radio audio frequency L in the described information source part, radio audio frequency R, the microphone broadcast audio, wireless microphone broadcast audio and control signal are input to 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 one embodiment of the present of invention are had been described in detail, but described content only is preferred embodiment of the present invention, can not be considered to be used to limiting practical range of the present invention.All equalizations of doing according to the present patent application scope change and improve etc., all should still belong within the patent covering scope of the present invention.
Claims (5)
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 of described information source part is input to described audio selection and volume control module, the radio broadcasting detection module, the NTC sampling, ARM plate serial ports and power amplifier state and control module are input to signal respectively the input of described cpu control circuit, described ARM plate serial ports links to each other with the program debugging interface, the output of described cpu control circuit is input to respectively analog switch with control signal, audio selection and volume control module and monitoring volume control module, described audio selection and volume control module are input to effect switching controls module with the audio signal of output, described audio selection and volume control module are input to the monitoring volume control module with the audio signal of output by pre-listening, 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, described monitoring volume control module is input to monitoring loudspeaker with the monitoring signal of output by monitoring power amplifier, radio audio frequency L in the described information source part, radio audio frequency R, the microphone broadcast audio, wireless microphone broadcast audio and control signal are input to 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: 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.
3. a kind of train broadcast transmitter master board according to claim 1, it is characterized in that: 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.
4. 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.
5. a kind of train broadcast transmitter master board according to claim 1 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 described monitoring listens the chip model to be in advance: PT2257.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210372284 CN102904659A (en) | 2012-09-28 | 2012-09-28 | Main control panel of train broadcasting transmitter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210372284 CN102904659A (en) | 2012-09-28 | 2012-09-28 | Main control panel of train broadcasting transmitter |
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| CN102904659A true CN102904659A (en) | 2013-01-30 |
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| CN 201210372284 Pending CN102904659A (en) | 2012-09-28 | 2012-09-28 | Main control panel of train broadcasting transmitter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415482A (en) * | 2019-08-29 | 2019-11-05 | 重庆金泓和瑞科技有限公司 | A kind of campus intelligent alarm work system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415482A (en) * | 2019-08-29 | 2019-11-05 | 重庆金泓和瑞科技有限公司 | A kind of campus intelligent alarm work system |
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Application publication date: 20130130 |