CN205149645U - New energy automobile traveles and assists sound generating mechanism based on digital analog conversion - Google Patents
New energy automobile traveles and assists sound generating mechanism based on digital analog conversion Download PDFInfo
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- CN205149645U CN205149645U CN201520993093.2U CN201520993093U CN205149645U CN 205149645 U CN205149645 U CN 205149645U CN 201520993093 U CN201520993093 U CN 201520993093U CN 205149645 U CN205149645 U CN 205149645U
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Abstract
The utility model discloses a new energy automobile traveles and assists sound generating mechanism based on digital analog conversion, include: speaker and printed circuit board, last microprocessor module, CAN communication module, DA module, power amplifier module and the power module of being provided with of printed circuit board, the controlling means that CAN communication module and new energy automobile are passed through to the microprocessor module is connected, the microprocessor module is connected with DA module, power amplifier module respectively, power amplifier module is connected with DA module and speaker respectively, power module links to each other with microprocessor module, DA module, power amplifier module, CAN communication module respectively. The utility model discloses a sound generating mechanism can through the output sound corresponding voltage signal of group, send the warning tone who sets up in advance with sound file conversion one -tenth sound group, has solved in the problem of plosive occasionally of starting shooting, may not use the pronunciation chip, can reduce cost to can initiatively detect pedestrian's situation of car, avoid increasing ambient noise, avoid the pedestrian to warn the consumption of unnecessary power consumption.
Description
Technical field
The utility model relates to audible alarm technical field, particularly relates to a kind of new-energy automobile based on digital to analogy conversion and travels auxiliary sound-producing device.
Background technology
Modern society, automobile has become requisite instrument in people's life, and private car and bus facilitate the trip of people, and automobile is replacing the vehicle that bicycle becomes important in people's life.In recent years, along with the day by day enhancing of global air pollution, various countries more and more pay attention to protection and the air-polluting prevention and processing of environment, and the discharge of vehicle exhaust is considered to one of air-polluting main source.New-energy automobile refers to and adopts unconventional vehicle fuel as power resources or use conventional vehicle fuel, employing novel on-vehicle engine installation, and the know-why of formation is advanced, the automobile with up-to-date technology, new construction.New-energy automobile adopt new work engine drive, the sound that it sends is very small, and flood by environmental noise, the new-energy automobile of silent form, is easily ignored by people, has constituted the unsafe factor of arteries of communication, need to automobile add extra sounds.At present, the sound-producing device of new-energy automobile relies on the action such as importing, sound arrangement storage, sound broadcasting, wave volume that speech chip completes audio files, sending in process at sound needs speech chip to participate in sounding, this segment chip increases system cost, traditional approach audio frequency exports and adopts PWM mode, this kind of mode must need to increase coordinate the shaping circuit of its waveform current automobile CAN communication in order to ensure that the stability of communication often adds common mode inductance in systems in which, this professional inductance is expensive, considerably increases the hardware cost of system.
Utility model content
In view of this, a technical matters to be solved in the utility model is to provide a kind of new-energy automobile based on digital to analogy conversion and travels auxiliary sound-producing device, can solve the problem.
New-energy automobile based on digital to analogy conversion travels an auxiliary sound-producing device, comprising: loud speaker and printed circuit board (PCB); Described printed circuit board (PCB) is provided with microprocessor module, CAN, D/A module, power amplifier module and power module; Described microprocessor module is connected with the control setup of new-energy automobile by described CAN; Described microprocessor module is connected with described D/A module, described power amplifier module respectively; Described power amplifier module is connected with described D/A module and described loud speaker respectively; Described power module is connected with described microprocessor module, described D/A module, described power amplifier module, described CAN respectively.
According to an embodiment of the present utility model, further, between described D/A module and described power amplifier module, be provided with filtration module, and described filtration module is arranged on the printed circuit board.
According to an embodiment of the present utility model, further, described filtration module is RC filter circuit module.
According to an embodiment of the present utility model, further, also comprise: memory module; Described memory module arranges on the printed circuit board and is connected with described microprocessor module.
According to an embodiment of the present utility model, further, described microprocessor module is connected by SPI universal serial bus with described D/A module.
According to an embodiment of the present utility model, further, described printed circuit board (PCB) arranges radiating gill; Described power amplifier module is arranged on described radiating gill, and is threaded with described radiating gill.
According to an embodiment of the present utility model, further, pizo-resistance is set in the connection line of described power module and described D/A module, described power amplifier module.
According to an embodiment of the present utility model, further, also comprise: housing; Described loud speaker and described printed circuit board (PCB) are arranged in described housing.
According to an embodiment of the present utility model, further, also comprise: described housing comprises: upper shell and lower house; Described printed circuit board (PCB) to be arranged on described lower house and to be threaded with described lower house.
According to an embodiment of the present utility model, further, the material of described upper shell and described lower house is aluminum alloy; Described upper shell is threaded with described lower house.
New-energy automobile based on digital to analogy conversion of the present utility model travels auxiliary sound-producing device, can audio files be converted to sound group, by the voltage signal that output sound group is corresponding, send the caution sound pre-set, solve and have plosive problem at voice system when starting shooting, can not speech chip be used, can reduce costs, and can pedestrian's situation of active detecting automobile, avoid increasing environmental noise, avoid pedestrian and warn and unnecessary use electric consumption.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that the new-energy automobile based on digital to analogy conversion of the present utility model travels an embodiment of auxiliary sound-producing device;
Fig. 2 is the CAN schematic diagram that the new-energy automobile based on digital to analogy conversion of the present utility model travels in an embodiment of auxiliary sound-producing device;
Fig. 3 is the filtration module schematic diagram that the new-energy automobile based on digital to analogy conversion of the present utility model travels in an embodiment of auxiliary sound-producing device.
Detailed description of the invention
With reference to the accompanying drawings the utility model is described more fully, exemplary embodiment of the present utility model is wherein described.Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with figure and embodiment, many-sided description is carried out to the technical solution of the utility model.
As shown in Figures 1 to 3, the utility model provides a kind of new-energy automobile based on digital to analogy conversion to travel auxiliary sound-producing device, comprising: loud speaker 9 and printed circuit board (PCB).Printed circuit board (PCB) is provided with microprocessor module 1, CAN 3, D/A module and digital-to-analogue conversion module 2, power amplifier module 5 and power module 6.Microprocessor module 1 is connected with the control setup of new-energy automobile by CAN 3.Microprocessor module 1 is connected with D/A module 2, power amplifier module 5 respectively.
Power amplifier module 5 is connected with D/A module 2 and loud speaker 9 respectively.Power module 6 is connected with microprocessor module 1, D/A module 2, power amplifier module 5, CAN 3 respectively.Memory module 7 arranges on a printed circuit and is connected with microprocessor module 1.Clock module 8 provides clock for giving microprocessor module 1.
CAN 3 is by CAN(ControllerAreaNetwork: controller local area network) communication obtains the status information of automobile, and passes to microprocessor module 1.Microprocessor module 1 proposes audio files corresponding to status information according to status information from memory module 7, and change position sound group, according to the interval time of timer to DA voltage signal corresponding to D/A module 2 output sound group data, D/A module 2 passes to power amplifier module 5 by filter circuit sound signal, and power amplifier module 5 drives loud speaker 9 to sound.
The new-energy automobile of digital to analogy conversion of the present utility model travels auxiliary sound-producing device, do not adopt special chip of speech decoder, but adopt software after voice document decoding, form sound array, then by the DA of CPU, voltage corresponding for sound group data is pushed to power amplifier module according to certain time interval according to the data that sound group is corresponding, and then drive loud speaker to send corresponding sound, and there is intelligent interface initiatively can send warning and namely find that pedestrian just starts to report to the police, the sound sending correspondence of planning can also be had for the distance of pedestrian.
Audio files can form the mixed and disorderly waveform of a kind of multiple harmonic combination, and the discrete mode of this harmonic wave forms the corresponding array of a kind of sound according to the sampling frequency of certain hour, abbreviation sound group.By a sound software, audio files is converted into WAV form, sampling frequency 8k or 16k, it is sound group that audio files is converted into corresponding.
The file that sound group is formed often is the bigger the better, and sampling frequency is particularly important, and excessive being not easy in systems in which of the too high array of sampling frequency is preserved, and too low the sent sound of sampling frequency can be that distortion is serious.After sound group and sampling frequency confirm, corresponding for sound group numeral is completed after once linear coefficient, to complete the corresponding of sound group data and voltage signal, and then play according to certain hour interval by the DA function pin of CPU.
The new-energy automobile of digital to analogy conversion of the present utility model travels auxiliary sound-producing device, a prefabricated intelligent interface, this intelligent interface can carry out docking with other equipment and identifies super sonic, infrared ray, the first-class equipment of shooting, can support the interfaces such as CAN, lin bus, Uart.
As shown in Figure 2, in CAN 3, have employed MC33901 family chip, MC33901 family chip be Freescale up-to-date go out CAN chip.And in the peripheral circuit of chip, adopt anti-common mode interference circuit and high frequency filtering circuit.The cost burden that up-to-date chip eliminates the increase that common mode inductance brings is have employed in CAN 3.Freescale MC33901 family chip is a high performance-price ratio transceiver, special in standard CAN high-speed applications, for converting digital protocol information to simulation CAN communication, the dominant timeout feature of built-in transceiver, physical interface can be provided to connect the CAN protocol controller of MCU and the physics two-wire etc. of CAN for automobile application.
In one embodiment, audio files conversion obtains sound group by voice processing software, sound group is stored in the EEPROM of CPU, by DA(digital analog converter) according to certain hour interval, voltage signal corresponding for sound group is exported, the caution sound pre-set can be sent.Between D/A module 2 and power amplifier module 5, be provided with filtration module 4, and filtration module 4 is arranged on a printed circuit.As shown in Figure 3, filtration module is RC filter circuit module.
Microprocessor module 1 is connected by SPI universal serial bus with D/A module.Printed circuit board (PCB) arranges radiating gill, and power amplifier module 5 is arranged on a heat sink, and is threaded with radiating gill.In power module 6 with the connection line of D/A module 2, power amplifier module 5, pizo-resistance is set.By increasing pizo-resistance at each power import place, and in connection line between modules, pizo-resistance is set, can the peak voltage of effective inhibitory mutagenesis, the electromagnetic compatibility of raising product.
Loud speaker and printed circuit board (PCB) are arranged in housing.Housing comprises: upper shell and lower house, and printed circuit board (PCB) to be arranged on lower house and to be threaded with lower house.The material of upper shell and lower house is aluminum alloy etc.; Upper shell and lower house can adopt and to be threaded or buckle such as to be connected at the mode.
The new-energy automobile based on digital to analogy conversion that above-described embodiment provides travels auxiliary sound-producing device, can audio files be converted to sound group, by the voltage signal that output sound group is corresponding, send the caution sound pre-set, solve and have plosive problem at voice system when starting shooting, can not speech chip be used, can reduce costs, and can pedestrian's situation of active detecting automobile, avoid increasing environmental noise, avoid pedestrian and warn and unnecessary use electric consumption.
Method and system of the present utility model may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method and system of the present utility model.Said sequence for the step of method is only to be described, and the step of method of the present utility model is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, also the utility model can be embodied as record program in the recording medium, these programs comprise the machine readable instructions for realizing according to method of the present utility model.Thus, the utility model also covers the recording medium stored for performing the program according to method of the present utility model.
Above-mentioned arbitrary technical scheme disclosed in the utility model unless otherwise stated, if the number range of it discloses, so disclosed number range is preferred number range, anyly it should be appreciated by those skilled in the art: preferred number range is only the numerical value that in many enforceable numerical value, technique effect is obvious or representative.Because numerical value is more, cannot be exhaustive, so the utility model just discloses component values with casehistory the technical solution of the utility model, and the above-mentioned numerical value enumerated should not form restriction the utility model being created to protection domain.
Simultaneously, if above-mentioned the utility model discloses or relate to parts or the framing member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can releasably be fixedly connected with (such as using bolt or screw to connect), also can be understood as: to be non-removablely fixedly connected with (such as rivet, weld), certainly, connection fastened to each other also can be replaced by integral type structure (such as use foundry technique is integrally formed create) (obviously cannot adopt except integrally formed technique).
In addition, apply in arbitrary technical scheme disclosed in above-mentioned the utility model for represent position relationship or shape term unless otherwise stated its implication comprise approximate with it, similar or close state or shape.Arbitrary parts that the utility model provides both can be assembled by multiple independent component part, and also can be one of the forming manufacture technics separate part out.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (10)
1. the new-energy automobile based on digital to analogy conversion travels an auxiliary sound-producing device, it is characterized in that, comprising:
Loud speaker and printed circuit board (PCB); Described printed circuit board (PCB) is provided with microprocessor module, CAN, D/A module, power amplifier module and power module; Described microprocessor module is connected with the control setup of new-energy automobile by described CAN; Described microprocessor module is connected with described D/A module, described power amplifier module respectively; Described power amplifier module is connected with described D/A module and described loud speaker respectively; Described power module is connected with described microprocessor module, described D/A module, described power amplifier module, described CAN respectively.
2. auxiliary sound-producing device as claimed in claim 1, is characterized in that:
Between described D/A module and described power amplifier module, be provided with filtration module, and described filtration module is arranged on the printed circuit board.
3. auxiliary sound-producing device as claimed in claim 2, is characterized in that:
Described filtration module is RC filter circuit module.
4. auxiliary sound-producing device as claimed in claim 1, is characterized in that, also comprise:
Memory module; Described memory module arranges on the printed circuit board and is connected with described microprocessor module.
5. auxiliary sound-producing device as claimed in claim 1, is characterized in that:
Described microprocessor module is connected by SPI universal serial bus with described D/A module.
6. auxiliary sound-producing device as claimed in claim 1, is characterized in that:
Described printed circuit board (PCB) arranges radiating gill;
Described power amplifier module is arranged on described radiating gill, and is threaded with described radiating gill.
7. auxiliary sound-producing device as claimed in claim 1, is characterized in that:
In the connection line of described power module and described D/A module, described power amplifier module, pizo-resistance is set.
8. auxiliary sound-producing device as claimed in claim 1, is characterized in that, also comprise:
Housing; Described loud speaker and described printed circuit board (PCB) are arranged in described housing.
9. auxiliary sound-producing device as claimed in claim 8, is characterized in that, also comprise:
Described housing comprises: upper shell and lower house;
Described printed circuit board (PCB) to be arranged on described lower house and to be threaded with described lower house.
10. auxiliary sound-producing device as claimed in claim 9, is characterized in that:
The material of described upper shell and described lower house is aluminum alloy;
Described upper shell is threaded with described lower house.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520993093.2U CN205149645U (en) | 2015-12-04 | 2015-12-04 | New energy automobile traveles and assists sound generating mechanism based on digital analog conversion |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520993093.2U CN205149645U (en) | 2015-12-04 | 2015-12-04 | New energy automobile traveles and assists sound generating mechanism based on digital analog conversion |
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| CN205149645U true CN205149645U (en) | 2016-04-13 |
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| CN201520993093.2U Expired - Fee Related CN205149645U (en) | 2015-12-04 | 2015-12-04 | New energy automobile traveles and assists sound generating mechanism based on digital analog conversion |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054210A (en) * | 2017-03-16 | 2017-08-18 | 吉林航盛电子有限公司 | A kind of warning tone generator of new-energy automobile |
| CN109017296A (en) * | 2018-06-08 | 2018-12-18 | 曲阜天博汽车电器有限公司 | New-energy automobile accelerator pedal prompts system for electrical teaching |
| CN109324546A (en) * | 2018-09-19 | 2019-02-12 | 智旅交通科技（深圳）有限公司 | A kind of new-energy automobile AVAS safe early warning vehicle-mounted terminal system |
-
2015
- 2015-12-04 CN CN201520993093.2U patent/CN205149645U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054210A (en) * | 2017-03-16 | 2017-08-18 | 吉林航盛电子有限公司 | A kind of warning tone generator of new-energy automobile |
| WO2018166296A1 (en) * | 2017-03-16 | 2018-09-20 | 吉林航盛电子有限公司 | Warning sound producer for new energy vehicle |
| CN109017296A (en) * | 2018-06-08 | 2018-12-18 | 曲阜天博汽车电器有限公司 | New-energy automobile accelerator pedal prompts system for electrical teaching |
| CN109324546A (en) * | 2018-09-19 | 2019-02-12 | 智旅交通科技（深圳）有限公司 | A kind of new-energy automobile AVAS safe early warning vehicle-mounted terminal system |
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| Date | Code | Title | Description |
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| 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: 20160413 Termination date: 20171204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |