CN2486401Y - MP3 multiple languige and character stop report device for public traffic vehicle - Google Patents
MP3 multiple languige and character stop report device for public traffic vehicle Download PDFInfo
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- CN2486401Y CN2486401Y CN01232101U CN01232101U CN2486401Y CN 2486401 Y CN2486401 Y CN 2486401Y CN 01232101 U CN01232101 U CN 01232101U CN 01232101 U CN01232101 U CN 01232101U CN 2486401 Y CN2486401 Y CN 2486401Y
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- stops
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- literal
- conversion circuit
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Abstract
The utility model relates to a bus-mounted MP3 device that announces the station names in a plurality of languages and texts. The utility model includes MP3 data files and a station-announcing text storage circuit, an MCU control circuit, an MCU monitoring and resetting circuit, a keyboard input controller, a serial input/output communication interface and/or an infrared data transmission interface, a working status display, an MP3 data file decompressing and D/A conversion circuit, a station name display, an audio power amplifying circuit and a mains voltage conversion circuit. The MCU control circuit is connected respectively to the serial input/output communication interface and/or infrared data transmission interface, the MP3 data file and station-announcing text storage circuit, the MCU monitoring and resetting circuit, the keyboard input controller, the working status display as well as the MP3 data file decompressing and D/A conversion circuit; the MP3 data file decompressing and D/A conversion circuit are connected to the audio power amplifying circuit; the station name display is connected to the serial input/output communication interface and/or infrared data transmission interface or the MCU control circuit.
Description
Technical field
The utility model relates to a kind of MP3 of utilization compression algorithm, the public transit vehicle multilingual bus stop announcement device of speech data Compress softwares reduction relates in particular to the public transit vehicle MP3 multilingual kinds of words bus stop announcement device in common carrier such as public transit vehicle, train, subways.
Background technology
The present known mode of utilizing the voice store recording as the public transit vehicle station reporting instrument, usually there are two kinds, a kind of is to utilize the analog recording technology, the use audiotape writes down and resets, with the recording content segmentation of calling out the stops, play this section content sound when calling out the stops, as Chinese patent application number be 91208973 " automatic stop reporter for bus ", this utility model relates to a kind of automatic stop reporter for bus, by the direction that the tape that name of station is arranged is recorded in two timer controls, a control playback, a control rewind down, the playback timer is controlled by booking-clerk, and the rewind down timer is controlled by photoconductive cell, after all names of station have been reported, photoconductive cell is received signal, the rewind down timer works, and tape stops before falling back on first name of station soon, has realized the function that circulation is called out the stops.Another kind is to belong to voice signal to handle and synthetic technology, as Chinese patent application number is 87214624, denomination of invention is the technology that discloses " the public transport Chinese speech synthesizes station reporting instrument ", this patent application relates to the synthetic station reporting instrument of a kind of public transport Chinese speech, belonging to voice signal handles and the application of synthetic technology aspect calling out the stops, it adopts special microprocessor system to make station reporting instrument, adopt advanced speech processes, reach synthetic technology, voice after the A/D conversion, are synthesized through handling, store to reach again.There is not the mechanical rotation part, the reliability height, volume is little, and is simple in structure, and control is convenient, the restriction of order before and after not being subjected to.This scheme is used wider aspect the public bus voice station reporting instrument.It is relatively poor that above-mentioned two types reporting station system all exists the sound quality of calling out the stops, distortion is big, mechanical type audiotape system operation complexity, poor stability, along with the improvement and the bus quality of people's lives quality improves constantly, requirement to reporting station system is more and more higher, and particularly the quality of sound has proposed new requirement.
Summary of the invention
The purpose of this utility model provides a kind of special quality sound broadcast system, the audio file of employing MP3 stores and is synthetic, utilize the principle of MP3 algorithm speech data Compress softwares reduction, provide, be used for public transit vehicle multilingual literal bus stop announcement device near the CD Quality player system.
To achieve these goals, the utility model provides a kind of public transit vehicle MP3 multilingual kinds of words bus stop announcement device, comprise the MP3 data file and the literal storage circuit of calling out the stops, the MCU control circuit, MCU monitors reset circuit, keyboard input controller, it is characterized in that also comprising: serial input and output communication interface and/or infrared data coffret, the mode of operation telltale, the MP3 data file decompresses, D/A conversion circuit, the read-out of calling out the stops, audio power amplifying circuit and power line voltage translation circuit; The MCU control circuit respectively with serial input and output communication interface and/or infrared data coffret, the MP3 data file and the literal storage circuit of calling out the stops, MCU monitors reset circuit, keyboard input controller, the mode of operation telltale, the MP3 data file decompresses, D/A conversion circuit links to each other; The decompression of MP3 data file, D/A conversion circuit link to each other with audio power amplifying circuit; Call out the stops read-out and serial input and output communication interface and/or infrared data coffret or MCU control circuit links to each other.Above-mentioned MP3 bus stop announcement device can be with computerized speech and copy editor's software, the voice typing is become data file with the copy editor, by serial input and output communication interface and/or infrared data coffret, data file is sent to public transit vehicle MP3 multilingual kinds of words bus stop announcement device stores.When the keyboard input controller input triggers corresponding control programs work, the mode of operation telltale shows the corresponding work state, the MCU control circuit sends command adapted thereto and accesses corresponding data from the MP3 data file and the literal storage circuit of calling out the stops, and delivers to that the MP3 data file decompresses, D/A conversion circuit is decoded processing.After the data that decoding is handled are changed by digital-to-analog, voice signal is carried out power gain, and deliver to and broadcast voice on the loud speaker; In addition the literal display data is sent to and shows corresponding name of station on the read-out of calling out the stops.
The language file that multilingual is called out the stops is after being compressed into mp3 file with software on the PC, send to the MCU control circuit by serial input and output communication interface on the PC and/or infrared data coffret, the MCU control circuit according to the data content form respectively with data storage in the MP3 data file with call out the stops in the literal storage circuit.When normal operation, the user can be as required, by the keyboard input circuit is set and select, and the mode of operation of the selected station reporting instrument of functions such as speech selection can be controlled the control such as call out the stops, cancellation is temporarily called out the stops of initially calling out the stops, circulate respectively.After the MCU control circuit is received control commands corresponding, on the MP3 data file and the literal storage circuit of calling out the stops, read language data and lteral data, and respectively lteral data is delivered to serial input and output communication interface and/or infrared data coffret, speech data is delivered to the decompression of MP3 data file, D/A conversion circuit decompression and D/A convert voice analog signal to.Two road audio power amplifying circuits drove the inside and outside loudspeaker of public transit vehicle about speech signal passed through, literal call out the stops data by the read-out of calling out the stops do literal demonstrations of calling out the stops, realization voice and literal are called out the stops synchronously.The broadcast of voice signal can be selected a kind of to four kinds of different voice by default; It can also be the selection setting of kinds of words that literal is selected.In the process of calling out the stops, can also control intercutting of contents such as pre-set advertisement, commonweal information, music respectively, the mode of operation telltale demonstrates the control corresponding state simultaneously.
When the speech data of station reporting instrument or lteral data need be revised, on PC, edit the data content of modification, send into by serial input and output communication interface and/or infrared data coffret, after the MCU control circuit is handled, be stored in the MP3 data file and the literal storage circuit of calling out the stops.
Description of drawings
Fig. 1 is a public transit vehicle MP3 multilingual kinds of words bus stop announcement device functional block diagram;
Fig. 2 is the circuit diagram of serial input and output communication interface and/or infrared data coffret, MCU monitoring reset circuit, keyboard input controller and mode of operation telltale;
Fig. 3 is the circuit diagram of the decompression of MP3 data file, D/A conversion circuit and audio power amplifying circuit;
Fig. 4 is the circuit diagram of MCU control circuit;
Fig. 5 is power line voltage translation circuit figure;
Fig. 6 is microphone input circuit figure.
The specific embodiment
As shown in Figure 1, Fig. 1 is a public transit vehicle MP3 multilingual kinds of words bus stop announcement device functional block diagram, comprise the MP3 data file and the literal storage circuit of calling out the stops, the MCU control circuit, MCU monitors reset circuit, keyboard input controller, also comprise serial input and output communication interface and/or infrared data coffret, the mode of operation telltale, the MP3 data file decompresses, D/A conversion circuit, the read-out of calling out the stops, audio power amplifying circuit and power line voltage translation circuit; The MCU control circuit respectively with serial input and output communication interface and/or infrared data coffret, the MP3 data file and the literal storage circuit of calling out the stops, MCU monitors reset circuit, keyboard input controller, the mode of operation telltale, the MP3 data file decompresses, D/A conversion circuit links to each other; The decompression of MP3 data file, D/A conversion circuit link to each other with audio power amplifying circuit; Call out the stops read-out and serial input and output communication interface and/or infrared data coffret or MUC control circuit links to each other; On the decompression of MP3 data file, D/A conversion circuit, can connect the microphone input circuit.The power line voltage translation circuit is used for powering to each part mentioned above.
Referring to Fig. 2, MCU controller U
41The P2 mouth be the keyboard input port, insert the artificial input control end of 4 * 4 keyboards, the function and the selection of control station reporting instrument as station reporting instrument.Shift register U
51With aerotron T
51-T
53Deng forming three bit digital telltales, be used to show the state of calling out the stops and the signal of calling out the stops, when keyboard was imported a certain station number and called out the stops, the MCU controller is corresponding sent this station number to shift register U
51The state that shows this station number, MCU controller read and are stored in memory device U
43The speech data and the lteral data of calling out the stops, speech data is a MP3 compressed format.The MCU controller is sent the literal read-out that shows to calling out the stops to the lteral data of calling out the stops that reads in through the serial delivery port TXD of MCU controller in addition, and the information of calling out the stops is shown.
Referring to Fig. 3, U
61Be the MP3 decoding chip, the MP3 speech data is fed through this chip decompress(ion) by the MCU controller, and the effect of this chip is to carry out the decompress(ion) reduction according to the compression algorithm of MP3.MP3 compressed format speech data is read through MCU controller U
41Deliver to MP3 decoding chip U
61The data input pin decompress(ion) with the data file decompress(ion) reduction of MP3 compression, is delivered to D/A conversion chip U then
71Carry out the D/A conversion, this chip is MP3 decoding D/A conversion special chip; Data are serial input mode, and are provided with the auxiliary input port of audio frequency, connect the microphone input.U
62, U
63Be power amplifier, the analog signal after the D/A conversion is amplified the inside and outside loud speaker that drives car.Input end is connected to adjustable potentiometer RP
61, RP
62, can adjust volume.
Referring to Fig. 4, U
43Be flash memory (FLASH) storage chip, be used to store the MP3 format data of voice and the literal data of calling out the stops of calling out the stops.The MP3 format data characteristics is that compression ratio is big, the reduction sound quality is good, tonequality near the CD form, the data of calling out the stops process voice edition software is with its segmentation editor, some voice that repeat to use always are divided into one group, read according to its storage address is corresponding when calling, send again after voice content makes up respectively to the reduction of reduction decoding chip, to save the storage area with each not repeating of calling out the stops.On the other hand, during speech data, the literal information of calling out the stops is also edited in corresponding memory space, read the literal data of calling out the stops when calling out the stops, send to the literal read-out through the MCU controller and show editor.
Referring to Fig. 5, electric pressure converter U
31-U
33Form the power line voltage translation circuit, electric pressure converter U
31The 24VDC of automobile current generator is reduced to 9 volts burning voltage, for power amplifier usefulness, electric pressure converter U
329V voltage is become+5V, use electric pressure converter U for the MCU controller
33+ 9V is become 3.3V, for flash memory storage chip U
42, decoding chip U
61, D/A conversion chip U
71Use.
Referring to Fig. 6, the microphone input circuit is connected to the auxiliary input end of D/A conversion chip and makes microphone input broadcast purposes, and by switch S
1, S
2Left and right sound channels is switched the voice broadcast service of the inside and outside loud speaker of car respectively.
Claims (5)
1. public transit vehicle MP3 multilingual kinds of words bus stop announcement device, comprise the MP3 data file and the literal storage circuit of calling out the stops, the MCU control circuit, MCU monitors reset circuit, and keyboard input controller is characterized in that also comprising: serial input and output communication interface and/or infrared data coffret, the mode of operation telltale, the MP3 data file decompresses, D/A conversion circuit, the read-out of calling out the stops, audio power amplifying circuit and power line voltage translation circuit; The MCU control circuit respectively with serial input and output communication interface and/or infrared data coffret, the MP3 data file and the literal storage circuit of calling out the stops, MCU monitors reset circuit, keyboard input controller, the mode of operation telltale, the MP3 data file decompresses, D/A conversion circuit links to each other; The decompression of MP3 data file, D/A conversion circuit link to each other with audio power amplifying circuit; Call out the stops read-out and serial input and output communication interface and/or infrared data coffret or MCU control circuit links to each other.
2. device according to claim 1 is characterized in that described MP3 data file decompresses, D/A conversion circuit can connect the microphone input circuit.
3. device according to claim 1 and 2, it is characterized in that the described MP3 data file and the literal storage circuit of calling out the stops are the flash memory storage chip, mix storage in order to language compression and literal, the synchronous processing of voice and literal, and in order to multi-path voice and the literal synchronous processing at the bus stop reporting device.
4. device according to claim 1 and 2, it is characterized in that described MP3 data file decompresses, D/A conversion circuit is the MP3 decoding chip, make MP3 coding about two sound channels control the signal of inside and outside loudspeaker respectively, call out the stops in order to the bus multilingual, different content is called out the stops voice in the inside and outside broadcast of car.
5. device according to claim 3, it is characterized in that described MP3 data file decompresses, D/A conversion circuit is the MP3 decoding chip, make MP3 coding about two sound channels control the signal of inside and outside loudspeaker respectively, call out the stops in order to the bus multilingual, different content is called out the stops voice in the inside and outside broadcast of car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01232101U CN2486401Y (en) | 2001-07-23 | 2001-07-23 | MP3 multiple languige and character stop report device for public traffic vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01232101U CN2486401Y (en) | 2001-07-23 | 2001-07-23 | MP3 multiple languige and character stop report device for public traffic vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2486401Y true CN2486401Y (en) | 2002-04-17 |
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ID=33646234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01232101U Expired - Fee Related CN2486401Y (en) | 2001-07-23 | 2001-07-23 | MP3 multiple languige and character stop report device for public traffic vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN2486401Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432984C (en) * | 2003-08-16 | 2008-11-12 | 三星电子株式会社 | Information storage medium containing interactive graphic stream, and reproducing apparatus and method thereof |
| CN103738271A (en) * | 2013-12-24 | 2014-04-23 | 东莞市艺展电子有限公司 | Steering wheel key function learning system |
| CN110290445A (en) * | 2019-06-11 | 2019-09-27 | 东莞市盛典电子科技有限公司 | AI intelligent sound box and tone quality optimization method thereof |
-
2001
- 2001-07-23 CN CN01232101U patent/CN2486401Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432984C (en) * | 2003-08-16 | 2008-11-12 | 三星电子株式会社 | Information storage medium containing interactive graphic stream, and reproducing apparatus and method thereof |
| CN103738271A (en) * | 2013-12-24 | 2014-04-23 | 东莞市艺展电子有限公司 | Steering wheel key function learning system |
| CN110290445A (en) * | 2019-06-11 | 2019-09-27 | 东莞市盛典电子科技有限公司 | AI intelligent sound box and tone quality optimization method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |