CN104270216A - Vehicular broadcast control box - Google Patents
Vehicular broadcast control box Download PDFInfo
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- CN104270216A CN104270216A CN201410479253.1A CN201410479253A CN104270216A CN 104270216 A CN104270216 A CN 104270216A CN 201410479253 A CN201410479253 A CN 201410479253A CN 104270216 A CN104270216 A CN 104270216A
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- driver
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Abstract
The invention relates to a vehicular broadcast control box which comprises a microprocessor, a matrix keyboard, an audio encoding and decoding chip, an analog switch, a power amplifier chip, an SD card, a UIC568 bus, a loudspeaker, an audio simulation intercom chip, an RS485 bus, a seven-inch LCD screen and a microphone. Full-duplex simulation intercom between drivers or between the drivers and passengers is achieved through an integrated communication chip. A peripheral circuit is simple, communication noise is low, the audio effect is good, and the defects that in a traditional radio control box broadcast control box, a communication circuit is set up by discrete devices, noise is large, and the sound effect is poor are overcome. The design of a passenger alarm recording function is added, when the passengers give alarms, the conversation of the drivers and the passengers is recorded, and inquiring can be facilitated; a passenger room monitoring function is added, the condition of passenger room broadcasts can be learn by the driver conveniently; the seven-inch colorful LCD screen is used for displaying the work condition of a broadcast system, and visibility is achieved.
Description
Technical field
The invention belongs to vehicle-mounted broadcasting equipment field, relate to a kind of Broadcasting Control box, particularly relate to a kind of vehicle-mounted broadcasting control box.
Background technology
In train broadcasting system, Broadcasting Control box is mainly used to realize that driver manually broadcasts, semi-automatic broadcast, driver's intercommunication, answer the functions such as passenger's alarm.Current mainstay adopts independently operational amplifier to realize the amplification of weak signal and discrete device to realize sidetone and eliminate.Circuit design is comparatively numerous and diverse, and is easily interfered, and lower tone when causing artificial broadcast or driver's intercommunication, has a strong impact on the experience of passenger.
In addition, passenger's alarm sound-recording function is not supported in existing design, is unfavorable for the investigation and evidence collection to unusual condition in train operation.Traditional Broadcasting Control box does not possess monitor function, is not easy to driver and understands guest room broadcast situation.Traditional Broadcasting Control box adopts LED indication mechanism working condition, very not directly perceived.
Summary of the invention
The technical problem solved: 1. traditional Broadcasting Control box adopts discrete device to build the shortcomings such as speaking circuit noise is large, audio is poor.In addition, along with passage of time, the drift of discrete device performance parameter is serious, and circuit working performance can be worse and worse.
2. passenger's alarm sound-recording function do not supported by traditional Broadcasting Control box.3. compartment, guest room broadcast listening function do not supported by traditional Broadcasting Control box.4. traditional Broadcasting Control box adopts light-emitting diode to carry out simple information prompting, not intuitively.
Technical scheme: for the problems referred to above, the invention discloses a kind of vehicle-mounted broadcasting control box, vehicle-mounted broadcasting control box comprises microprocessor, matrix keyboard, audio coding decoding chip, analog switch, power amplifier chips, SD card, UIC568 bus, loud speaker, audio frequency simulation intercommunication chip, RS485 bus, 7 inch liquid crystal screens, microphone.
Vehicle-mounted broadcasting control box support of the present invention is manually broadcasted, driver's intercommunication, answer the various functions such as passenger's alarm, guest room monitoring.SD card be used for storage call out the stops audio frequency, intercommunication prompt tone, alarm prompt sound and alarm recording.Matrix keyboard has artificial broadcast, driver's intercommunication, answers passenger's alarm, multiple function button such as monitoring loudspeaker volume adjusting, monitoring loudspeaker are quiet, directionkeys, acknowledgement key.7 ' liquid crystal display screen is used for display system working condition, information of calling out the stops, intercommunication information, alarm prompt etc.System adopts the RS485 bus transfer control command of differential transfer, and antijamming capability is strong.
Driver can select artificial broadcast capability by matrix keyboard; During artificial broadcast, the audio signal that driver speaks outputs to analog switch after microphone collection, after analog switch switches, output to audio frequency simulation intercommunication chip, be connected to UIC568 bus, finally by UIC568 bus transfer to guest room server by audio frequency simulation intercommunication chip.
When driver selects semi-automatic broadcast by matrix keyboard, driver selects by the matrix keyboard of Broadcasting Control box information of calling out the stops, and microprocessor is from the corresponding voice data of SD card reading afterwards, and is reduced to simulated audio signal by audio coding decoding chip; This simulated audio signal is connected to UIC568 bus after analog switch switches, then by UIC568 bus transfer to guest room server; 7 inches of TFT liquid crystal display screens are now by the semi-automatic content information of calling out the stops of calling out the stops of display.
When driver is by matrix keyboard selection driver's intercommunication function, the instruction of driver's intercommunication will by RS485 bus transfer to opposite side drivers' cab Broadcasting Control box; The microprocessor of opposite side Broadcasting Control box reads the prompt tone of driver's intercommunication from SD card, and prompt tone outputs to the audio frequency power amplifier of monitoring loudspeaker after the decoding of audio coding decoding chip, and power amplifier drives monitoring loudspeaker to send intercommunication prompt tone; Meanwhile, liquid crystal display screen also can show the solicited message of driver's intercommunication; The driver of opposite side drivers' cab sets up driver's intercommunication by the respective keys of matrix keyboard; During driver's intercommunication, microphone outputs to analog switch by collecting the audio signal that driver speaks, audio frequency simulation intercommunication chip is outputted to after analog switch switches, UIC568 bus is connected to, finally by UIC568 bus transfer to train opposite side drivers' cab Broadcasting Control box by audio frequency simulation intercommunication chip; Broadcasting Control box outputs to power amplifier chips by audio frequency simulation intercommunication chip, sounds through power amplifier chips power amplification rear drive loud speaker after receiving the audio signal that opposite side driver speaks.
When there is passenger's alarm, alarm command passes through RS485 bus transfer to Broadcasting Control box; Microprocessor reads alarm prompt sound from SD card, and alarm prompt sound is decoded as through audio coding decoding chip the audio frequency power amplifier outputting to monitoring loudspeaker after simulated audio signal, sends alarm prompt sound through power amplifier power amplification rear drive monitoring loudspeaker; Meanwhile, liquid crystal display screen also can display alarm information; After driver realizes passenger's alarm, answer passenger's alarm by the corresponding function button of matrix keyboard; Driver is same with the audio signal that passenger converses by UIC568 bus transfer; Power amplifier chips power amplification rear drive monitoring loudspeaker through monitoring loudspeaker after passenger's one's voice in speech audio transmission to Broadcasting Control box is sounded; Audio coding decoding chip simultaneously sampled audio data, is stored into SD card by the digital audio-frequency data that the dialog context of driver and passenger is converted to MP3 format.
When without passenger's alarm or driver's intercommunication, the guest room server of monitoring loudspeaker and broadcast system synchronously plays audio frequency of calling out the stops; Driver can be closed by the mute button of matrix keyboard or start monitor function; Driver also can increase or reduce monitoring volume by volume adjusting button.
Beneficial effect: novel department Broadcasting Control box is through actual test, and audio frequency tonequality is good, and noiselessness is powerful, liquid crystal display screen display interface is friendly directly perceived, and matrix keyboard is easy to use, obtains accreditation and the favorable comment of client.
1. adopt integrated call chip to realize driver and driver or the Full-Duplex Analog intercommunication between driver and passenger.Adopt integrated call chip design, peripheral circuit is simple, and call noise is low, and audio frequency effect is good, overcomes traditional Broadcasting Control box and adopts discrete device to build the shortcomings such as speaking circuit noise is large, audio is poor.In addition, along with passage of time, the drift of discrete device performance parameter is serious, and circuit working performance can worse and worse, adopt integrated call chip design then not have these shortcomings.
2. vehicle-mounted broadcasting control box of the present invention adds the design of passenger's alarm sound-recording function, and when passenger's alarm, the call of driver and passenger will be recorded, to inquire about.
3. vehicle-mounted broadcasting control box of the present invention increases guest room broadcast listening function, is convenient to driver and understands guest room broadcast situation.
4. vehicle-mounted broadcasting control box of the present invention adopts 7 ' color LCD screen display of broadcast system health, very intuitively.
Accompanying drawing explanation
Fig. 1 is the system block diagram of vehicle-mounted broadcasting control box.
Embodiment
Embodiment 1
A kind of vehicle-mounted broadcasting control box, vehicle-mounted broadcasting control box comprises microprocessor, matrix keyboard, audio coding decoding chip, analog switch, power amplifier chips, SD card, UIC568 bus, loud speaker, audio frequency simulation intercommunication chip, RS485 bus, 7 inch liquid crystal screens, microphone.
Driver can select artificial broadcast capability by matrix keyboard; During artificial broadcast, the audio signal that driver speaks outputs to analog switch after microphone collection, after analog switch switches, output to audio frequency simulation intercommunication chip, be connected to UIC568 bus, finally by UIC568 bus transfer to guest room server by audio frequency simulation intercommunication chip.
When driver selects semi-automatic broadcast by matrix keyboard, driver selects by the matrix keyboard of Broadcasting Control box information of calling out the stops, and microprocessor is from the corresponding voice data of SD card reading afterwards, and is reduced to simulated audio signal by audio coding decoding chip; This simulated audio signal is connected to UIC568 bus after analog switch switches, then by UIC568 bus transfer to guest room server; 7 inches of TFT liquid crystal display screens are now by the semi-automatic content information of calling out the stops of calling out the stops of display.
When driver is by matrix keyboard selection driver's intercommunication function, the instruction of driver's intercommunication will by RS485 bus transfer to opposite side drivers' cab Broadcasting Control box; The microprocessor of opposite side Broadcasting Control box reads the prompt tone of driver's intercommunication from SD card, and prompt tone outputs to the audio frequency power amplifier of monitoring loudspeaker after the decoding of audio coding decoding chip, and power amplifier drives monitoring loudspeaker to send intercommunication prompt tone; Meanwhile, liquid crystal display screen also can show the solicited message of driver's intercommunication; The driver of opposite side drivers' cab sets up driver's intercommunication by the respective keys of matrix keyboard; During driver's intercommunication, microphone outputs to analog switch by collecting the audio signal that driver speaks, audio frequency simulation intercommunication chip is outputted to after analog switch switches, UIC568 bus is connected to, finally by UIC568 bus transfer to train opposite side drivers' cab Broadcasting Control box by audio frequency simulation intercommunication chip; Broadcasting Control box outputs to power amplifier chips by audio frequency simulation intercommunication chip, sounds through power amplifier chips power amplification rear drive loud speaker after receiving the audio signal that opposite side driver speaks.
When there is passenger's alarm, alarm command passes through RS485 bus transfer to Broadcasting Control box; Microprocessor reads alarm prompt sound from SD card, and alarm prompt sound is decoded as through audio coding decoding chip the audio frequency power amplifier outputting to monitoring loudspeaker after simulated audio signal, sends alarm prompt sound through power amplifier power amplification rear drive monitoring loudspeaker; Meanwhile, liquid crystal display screen also can display alarm information; After driver realizes passenger's alarm, answer passenger's alarm by the corresponding function button of matrix keyboard; Driver is same with the audio signal that passenger converses by UIC568 bus transfer; Power amplifier chips power amplification rear drive monitoring loudspeaker through monitoring loudspeaker after passenger's one's voice in speech audio transmission to Broadcasting Control box is sounded; Audio coding decoding chip simultaneously sampled audio data, is stored into SD card by the digital audio-frequency data that the dialog context of driver and passenger is converted to MP3 format.
When without passenger's alarm or driver's intercommunication, the guest room server of monitoring loudspeaker and broadcast system synchronously plays audio frequency of calling out the stops; Driver can be closed by the mute button of matrix keyboard or start monitor function; Driver also can increase or reduce monitoring volume by volume adjusting button.
Claims (5)
1. a vehicle-mounted broadcasting control box, is characterized in that: vehicle-mounted broadcasting control box comprises microprocessor, matrix keyboard, audio coding decoding chip, analog switch, power amplifier chips, SD card, UIC568 bus, loud speaker, audio frequency simulation intercommunication chip, RS485 bus, 7 inch liquid crystal screens, microphone;
Driver can select artificial broadcast capability by matrix keyboard; During artificial broadcast, the audio signal that driver speaks outputs to analog switch after microphone collection, after analog switch switches, output to audio frequency simulation intercommunication chip, be connected to UIC568 bus, finally by UIC568 bus transfer to guest room server by audio frequency simulation intercommunication chip;
When driver selects semi-automatic broadcast by matrix keyboard, driver selects by the matrix keyboard of Broadcasting Control box information of calling out the stops, and microprocessor is from the corresponding voice data of SD card reading afterwards, and is reduced to simulated audio signal by audio coding decoding chip; This simulated audio signal is connected to UIC568 bus after analog switch switches, then by UIC568 bus transfer to guest room server; 7 inches of TFT liquid crystal display screens are now by the semi-automatic content information of calling out the stops of calling out the stops of display;
When driver is by matrix keyboard selection driver's intercommunication function, the instruction of driver's intercommunication will by RS485 bus transfer to opposite side drivers' cab Broadcasting Control box; The microprocessor of opposite side Broadcasting Control box reads the prompt tone of driver's intercommunication from SD card, and prompt tone outputs to the audio frequency power amplifier of monitoring loudspeaker after the decoding of audio coding decoding chip, and power amplifier drives monitoring loudspeaker to send intercommunication prompt tone; Meanwhile, liquid crystal display screen also can show the solicited message of driver's intercommunication; The driver of opposite side drivers' cab sets up driver's intercommunication by the respective keys of matrix keyboard; During driver's intercommunication, microphone outputs to analog switch by collecting the audio signal that driver speaks, audio frequency simulation intercommunication chip is outputted to after analog switch switches, UIC568 bus is connected to, finally by UIC568 bus transfer to train opposite side drivers' cab Broadcasting Control box by audio frequency simulation intercommunication chip; Broadcasting Control box outputs to power amplifier chips by audio frequency simulation intercommunication chip, sounds through power amplifier chips power amplification rear drive loud speaker after receiving the audio signal that opposite side driver speaks;
When there is passenger's alarm, alarm command passes through RS485 bus transfer to Broadcasting Control box; Microprocessor reads alarm prompt sound from SD card, and alarm prompt sound is decoded as through audio coding decoding chip the audio frequency power amplifier outputting to monitoring loudspeaker after simulated audio signal, sends alarm prompt sound through power amplifier power amplification rear drive monitoring loudspeaker; Meanwhile, liquid crystal display screen also can display alarm information; After driver realizes passenger's alarm, answer passenger's alarm by the corresponding function button of matrix keyboard; Driver is same with the audio signal that passenger converses by UIC568 bus transfer; Power amplifier chips power amplification rear drive monitoring loudspeaker through monitoring loudspeaker after passenger's one's voice in speech audio transmission to Broadcasting Control box is sounded; Audio coding decoding chip simultaneously sampled audio data, is stored into SD card by the digital audio-frequency data that the dialog context of driver and passenger is converted to MP3 format;
When without passenger's alarm or driver's intercommunication, the guest room server of monitoring loudspeaker and broadcast system synchronously plays audio frequency of calling out the stops; Driver can be closed by the mute button of matrix keyboard or start monitor function; Driver also can increase or reduce monitoring volume by volume adjusting button.
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2. a kind of vehicle-mounted broadcasting control box according to claim 1, is characterized in that: described vehicle-mounted broadcasting control box support is manually broadcasted, driver's intercommunication, answer passenger's alarm, guest room monitor function.
3. a kind of vehicle-mounted broadcasting control box according to claim 1, is characterized in that: SD card be used for storage call out the stops audio frequency, intercommunication prompt tone, alarm prompt sound and alarm recording.
4. a kind of vehicle-mounted broadcasting control box according to claim 1, is characterized in that: the function button of matrix keyboard comprises artificial broadcast, driver's intercommunication, answers passenger's alarm, monitoring loudspeaker volume adjusting, monitoring loudspeaker are quiet, directionkeys, acknowledgement key.
5. a kind of vehicle-mounted broadcasting control box according to claim 1, is characterized in that: 7 inch liquid crystal screens are used for display system working condition, information of calling out the stops, intercommunication information, alarm prompt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410479253.1A CN104270216A (en) | 2014-09-18 | 2014-09-18 | Vehicular broadcast control box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410479253.1A CN104270216A (en) | 2014-09-18 | 2014-09-18 | Vehicular broadcast control box |
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| CN104270216A true CN104270216A (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410479253.1A Pending CN104270216A (en) | 2014-09-18 | 2014-09-18 | Vehicular broadcast control box |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104796210A (en) * | 2015-03-23 | 2015-07-22 | 上海富欣智能交通控制有限公司 | Broadcasting control box |
| CN105245302A (en) * | 2015-09-21 | 2016-01-13 | 深圳市航盛电子股份有限公司 | Multifunctional telephone broadcast system for train |
| CN105933021A (en) * | 2016-04-25 | 2016-09-07 | 广东好帮手电子科技股份有限公司 | Vehicle-mounted multimedia navigation system having intercom function and intercom method thereof |
| CN107070571A (en) * | 2017-01-18 | 2017-08-18 | 中南大学 | A kind of subway digital audio-video-frequency broadcast method and system based on compressed sensing |
| CN110492957A (en) * | 2019-08-26 | 2019-11-22 | 中车株洲电力机车研究所有限公司 | A kind of system and method merging intelligence rail electric car column adjusting system and vehicle-mounted broadcasting system |
Citations (5)
| 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 |
| CN202014256U (en) * | 2011-04-29 | 2011-10-19 | 广州国联通信有限公司 | Vehicle-mounted broadcasting control box |
| CN202856746U (en) * | 2012-09-28 | 2013-04-03 | 天津市北海通信技术有限公司 | Audio pre-listening and monitoring structure of train broadcasting machine |
| CN103532651A (en) * | 2013-09-27 | 2014-01-22 | 株洲南车时代电气股份有限公司 | High-reliability digitized train broadcasting system |
| CN203691425U (en) * | 2013-12-30 | 2014-07-02 | 易程（苏州）智能系统有限公司 | Novel passenger alarm |
-
2014
- 2014-09-18 CN CN201410479253.1A patent/CN104270216A/en active Pending
Patent Citations (5)
| 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 |
| CN202014256U (en) * | 2011-04-29 | 2011-10-19 | 广州国联通信有限公司 | Vehicle-mounted broadcasting control box |
| CN202856746U (en) * | 2012-09-28 | 2013-04-03 | 天津市北海通信技术有限公司 | Audio pre-listening and monitoring structure of train broadcasting machine |
| CN103532651A (en) * | 2013-09-27 | 2014-01-22 | 株洲南车时代电气股份有限公司 | High-reliability digitized train broadcasting system |
| CN203691425U (en) * | 2013-12-30 | 2014-07-02 | 易程（苏州）智能系统有限公司 | Novel passenger alarm |
Non-Patent Citations (1)
| Title |
|---|
| 刘晓: "HDLC协议列车广播系统控制器软件设计于实现", 《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 |
|---|---|---|---|---|
| CN104796210A (en) * | 2015-03-23 | 2015-07-22 | 上海富欣智能交通控制有限公司 | Broadcasting control box |
| CN105245302A (en) * | 2015-09-21 | 2016-01-13 | 深圳市航盛电子股份有限公司 | Multifunctional telephone broadcast system for train |
| CN105933021A (en) * | 2016-04-25 | 2016-09-07 | 广东好帮手电子科技股份有限公司 | Vehicle-mounted multimedia navigation system having intercom function and intercom method thereof |
| CN107070571A (en) * | 2017-01-18 | 2017-08-18 | 中南大学 | A kind of subway digital audio-video-frequency broadcast method and system based on compressed sensing |
| CN110492957A (en) * | 2019-08-26 | 2019-11-22 | 中车株洲电力机车研究所有限公司 | A kind of system and method merging intelligence rail electric car column adjusting system and vehicle-mounted broadcasting system |
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Application publication date: 20150107 |