CN104015656B - Vehicle whistle information interacting method - Google Patents
Vehicle whistle information interacting method Download PDFInfo
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- CN104015656B CN104015656B CN201410250216.3A CN201410250216A CN104015656B CN 104015656 B CN104015656 B CN 104015656B CN 201410250216 A CN201410250216 A CN 201410250216A CN 104015656 B CN104015656 B CN 104015656B
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Abstract
The invention discloses a kind of vehicle whistle information interaction system and exchange method, this system includes indicating module of blowing a whistle, and the loudspeaker being connected with indicating module of blowing a whistle drive module, ultrasonic transmitting element and ultrasound wave to receive unit.Information to be sent is combined by the present invention with vehicle whistle, during vehicle whistle, except sending, human ear is discernible blows a whistle except sound, also automobile or driver information are launched in hyperacoustic mode, this acoustic information can't change original sound of blowing a whistle, and will not be perceived by the human ear, and specific reception equipment can perceive the ultrasonic signal being loaded with automobile information, and solve this information, thus without to environment.It is mutual with the short distance information of garage that the present invention can be used for automobile, and public place automobile information acquisition etc. is particularly well-suited to RF identification, video monitoring confined area and the disturbed shielding area of radio wave.
Description
Technical field
The present invention relates to a kind of Automotive Information Transmission method, particularly relate to a kind of vehicle whistle information interacting method.
Background technology
Automobile, as the main traffic instrument of people's go off daily, plays important function in people live.Along with the arrival of all things on earth Internet age, automobile, except as the vehicles, also plays the carrier of information, communicates information to user and public traffic control department.
At present, the mode of automobile transmission information is mainly based on REID (RFID), Video Supervision Technique and telecommunication technology.RFID technique be mainly used in public place, community, on-site vehicle access standard go out, record etc., special RFID reader the RFID mark read in automobile obtains automobile information.Its drawback that presently, there are is: read apart from limited, is subject to the interference of same frequency band signals, and industry lacks unified standard.Video Supervision Technique is mainly used in the prospecting of highway, street road conditions, and by public traffic control division management, accuracy is subject to weather, light environment impact.Vehicular radio communication is communication tool main between car and car, meets the speech communication in car and workshop in certain area, but needs to install wireless transmitter between the vehicle of communication, relatively costly, and wireless telecommunications are subject to region, electromagnetic environment interference.
Summary of the invention
The present invention is to solve above-mentioned problems of the prior art, it is provided that the vehicle whistle information interacting method that a kind of relevant information combines with vehicle whistle.
For achieving the above object, the present invention adopts the following technical scheme that:
A kind of vehicle whistle information interacting method, the method comprises the following steps:
Step one, ultrasonic transmitting element information generating module receive the triggering signal of indicating module of blowing a whistle after, information to be sent is generated information of acoustic wave and check code；
The information of acoustic wave that information generating module is generated by step 2, information coding module carries out data encryption, chnnel coding and sound wave framing, and information waiting for transmission is with the format transmission of Frame, and for ease of receiving terminal identification, every segment data frame increases frame head instruction；
Information of acoustic wave after step 3, framing is after modulates information module arranges parameter, control the module power to output then through acoustic power to be controlled, then emitted module sends with the form of ultrasonic signal, and indicating module of simultaneously blowing a whistle triggers loudspeaker and drives module to send sound of blowing a whistle；
After the receiver module of step 4, ultrasound wave reception unit receives ultrasonic signal, information demodulate and ultrasonic signal is carried out signal demodulation by pretreatment module, signal amplifies and analog-to-digital conversion process, and ultrasonic signal is converted to digital signal；
Digital signal is searched frame head by step 5, formation-decoding module, judge whether the ultrasonic signal received comprises information of acoustic wave, if identifying frame head, comprise information of acoustic wave, then decoding data is operated, a small amount of mistake occurred in transmitting procedure is carried out error correction, if encrypted data, then it is decrypted with local key, the data of decoding, deciphering are carried out data correctness verification, if verification is correct, show that data are correctly extracted, if check errors, abandon data；
Correct data are identified by step 6, information identification module, it is judged that whether the recipient of data is this receiving terminal, if this receiving terminal, then data message is informed to user, if non-receiving terminal of data receiver, then abandon data equally；For the data of encryption, if key and this receiving terminal key are not inconsistent, then equally information is abandoned.
Chnnel coding in step 2 adopts it appeared that and correct the forward error correction of error in data.
The present invention has the advantage that and has the benefit effect that
Information to be sent is combined by the present invention with vehicle whistle, during vehicle whistle, except sending, human ear is discernible blows a whistle except sound, also automobile or driver information are launched in hyperacoustic mode, this acoustic information can't change original sound of blowing a whistle, and will not be perceived by the human ear, and specific reception equipment can perceive the ultrasonic signal being loaded with automobile information, and solve this information, thus without to environment.It is mutual with the short distance information of garage that the present invention can be used for automobile, and public place automobile information acquisition etc. is particularly well-suited to RF identification, video monitoring confined area and the disturbed shielding area of radio wave.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the vehicle whistle information interaction system of the present invention；
Fig. 2 is the flow chart of the transmitting terminal of the vehicle whistle information interacting method of the present invention；
Fig. 3 is the flow chart of the receiving terminal of the vehicle whistle information interacting method of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the vehicle whistle information interacting method of the present invention is described further.Following each embodiment is merely to illustrate the present invention and is not limitation of the present invention.
Fig. 1 is the overall structure block diagram of the vehicle whistle information interaction system of the present invention.As it is shown in figure 1, the vehicle whistle information interaction system of the present invention, including blowing a whistle indicating module and the loudspeaker being connected with indicating module of blowing a whistle drive module；This system also includes ultrasonic transmitting element and ultrasound wave receives unit；Ultrasonic transmitting element includes the information generating module, information coding module, modulates information module, acoustic power control module and the transmitter module that are sequentially connected with；Ultrasound wave receives receiver module, information demodulation and pretreatment module, formation-decoding module and the information identification module that unit includes being sequentially connected with；Indicating module of blowing a whistle is connected with the information generating module of ultrasonic transmitting element.
When driver honks, indicating module of blowing a whistle triggers the transmission of automobile information, information to be sent passes through information coding module, modulates information module is converted to ultrasonic signal, then control the module power to output through acoustic power to be controlled, send the ultrasound wave being loaded with information of vehicles, vehicle whistle indicating module triggers car horn and sends sound of blowing a whistle simultaneously, because the coding of automobile information, it is extremely short that modulation etc. process link delay, realized by high speed numerical processor, and acoustic signals spread speed is slower, it is believed that blow a whistle, sound and information of vehicles sound wave are simultaneously emitted by.At acoustic receiver end, information of acoustic wave is demodulated, obtain after decoding process for information of vehicles, notifying receiving terminal user according to the content of information.
Fig. 2 is the flow chart of the transmitting terminal of the vehicle whistle information interacting method of the present invention；Fig. 3 is the flow chart of the receiving terminal of the vehicle whistle information interacting method of the present invention.As shown in Figures 2 and 3, a kind of vehicle whistle information interacting method, the method comprises the following steps:
Step one, ultrasonic transmitting element information generating module receive the triggering signal of indicating module of blowing a whistle after, information to be sent is generated information of acoustic wave and check code；
The information of acoustic wave that information generating module is generated by step 2, information coding module carries out data encryption, chnnel coding and sound wave framing, and information waiting for transmission is with the format transmission of Frame, and for ease of receiving terminal identification, every segment data frame increases frame head instruction；
Information of acoustic wave after step 3, framing is after modulates information module arranges parameter, control the module power to output then through acoustic power to be controlled, then emitted module sends with the form of ultrasonic signal, and indicating module of simultaneously blowing a whistle triggers loudspeaker and drives module to send sound of blowing a whistle；
After the receiver module of step 4, ultrasound wave reception unit receives ultrasonic signal, information demodulate and ultrasonic signal is carried out signal demodulation by pretreatment module, signal amplifies and analog-to-digital conversion process, and ultrasonic signal is converted to digital signal；
Digital signal is searched frame head by step 5, formation-decoding module, judge whether the ultrasonic signal received comprises information of acoustic wave, if identifying frame head, comprise information of acoustic wave, then decoding data is operated, the a small amount of mistake occurred in transmitting procedure is carried out error correction, if encrypted data, then it is decrypted with local key, the data of decoding, deciphering are carried out data correctness verification, the correctness of checking decoding, if verification is correct, it was shown that data are correctly extracted, if check errors, abandon data；
Correct data are identified by step 6, information identification module, it is judged that whether the recipient of data is this receiving terminal, if this receiving terminal, then data message is informed to user, if non-receiving terminal of data receiver, then abandon data equally；For the data of encryption, if key and this receiving terminal key are not inconsistent, then equally information is abandoned.
At ultrasonic emitting end, the content of automobile information can be many-sided, and user can select to send according to practical situation, as: information of vehicles, driver information, information of road surface, emergency etc..Being selected by user by information generating module, should comprise transmitting side marking code, recipient's identification code and information content in information format, and sending and receiving both sides identify unique and can not revise, the reserved broadcast identification of sending and receiving mark, for public demands.Considering the complexity of sonic transmissions channel, in order to guarantee information can be properly received receiving end, except frame head, remainder data all carries out chnnel coding.Chnnel coding adopt it appeared that and correct the forward error correction of error in data, it is ensured that the correctness of data.
Because information data amount to be sent is less, the redundancy that chnnel coding increases can't impact to the bandwidth of data transmission and real-time.Information waiting for transmission is with the format transmission of Frame, and for ease of receiving terminal identification, every segment data frame increases frame head instruction, and the form of frame head is to facilitate receiving terminal to be identified as purpose, adopts the sequence of agreement form.It addition, information to be transmitted can be encrypted by particular case, use the predefined key in sending and receiving two ends to be encrypted, make the information of transmission only be obtained by specific receiver.
The information that above procedure processes is base-band information, in order to transfer out in the way of sound wave, need to modulate acoustic wave sequences sound wave frequency range, the appreciable sound frequency range of human ear is 20-20000Hz, it is ultrasound wave more than 20000Hz frequency, in order to not be perceived by the human ear, choose supersonic band and be transmitted, base band data waiting for transmission modulation, to supersonic band, drives ultrasonic transducer to send ultrasound wave.
User can pass through power control module and control power and the frequency range that ultrasound wave drives, hyperacoustic decay aggravates along with the increase of frequency, therefore user can control, according to the distance of distance to be transmitted, power and the frequency range that ultrasound wave sends, consider unified and standard, supersonic band can pre-define, and facilitates sending and receiving compatible.
Receiver module real-time reception ambient sound waves signal, after signal demodulation, signal amplification, analog-to-digital conversion process, is converted to digital baseband signal by acoustic signals, and signal demodulation realizes the acoustic signals of supersonic band is converted to base band frequency range；Signal amplifier realizes amplifying acoustic signals, to improve signal to noise ratio；Analog-digital converter realizes converting analog signals into digital signal, for rear class analysis.
The present invention propose by vehicle whistle transmit information mode can supplementing at some extent as three kinds of communication modes conventional in prior art, under same power, acoustic ratio radio wave transmission distance is remote, can be used for the communication in extreme regions environment；R-T unit cost is low compared with other modes, is more suitable for vehicle and car to car communication；Launch low frequency ultrasound, do not pollute the environment.
Claims (2)
1. a vehicle whistle information interacting method, it is characterised in that: the method comprises the following steps:
Step one, ultrasonic transmitting element information generating module receive the triggering signal of indicating module of blowing a whistle after, information to be sent is generated information of acoustic wave and check code；
The information of acoustic wave that information generating module is generated by step 2, information coding module carries out data encryption, chnnel coding and sound wave framing, and information waiting for transmission is with the format transmission of Frame, and for ease of receiving terminal identification, every segment data frame increases frame head instruction；
Information of acoustic wave after step 3, framing is after modulates information module arranges parameter, control the module power to output then through acoustic power to be controlled, then emitted module sends with the form of ultrasonic signal, and indicating module of simultaneously blowing a whistle triggers loudspeaker and drives module to send sound of blowing a whistle；
After the receiver module of step 4, ultrasound wave reception unit receives ultrasonic signal, information demodulate and ultrasonic signal is carried out signal demodulation by pretreatment module, signal amplifies and analog-to-digital conversion process, and ultrasonic signal is converted to digital signal；
Digital signal is searched frame head by step 5, formation-decoding module, judge whether the ultrasonic signal received comprises information of acoustic wave, if identifying frame head, comprise information of acoustic wave, then decoding data is operated, a small amount of mistake occurred in transmitting procedure is carried out error correction, if encrypted data, then it is decrypted with local key, the data of decoding, deciphering are carried out data correctness verification, if verification is correct, show that data are correctly extracted, if check errors, abandon data；
Correct data are identified by step 6, information identification module, it is judged that whether the recipient of data is this receiving terminal, if this receiving terminal, then data message is informed to user, if non-receiving terminal of data receiver, then abandon data equally；For the data of encryption, if key and this receiving terminal key are not inconsistent, then equally information is abandoned.
2. vehicle whistle information interacting method according to claim 1, it is characterised in that: chnnel coding in step 2 adopts it appeared that and correct the forward error correction of error in data.
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| CN201410250216.3A CN104015656B (en) | 2014-06-09 | 2014-06-09 | Vehicle whistle information interacting method |
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| CN201410250216.3A CN104015656B (en) | 2014-06-09 | 2014-06-09 | Vehicle whistle information interacting method |
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| CN104015656B true CN104015656B (en) | 2016-07-06 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105528696A (en) * | 2014-09-29 | 2016-04-27 | 冠捷投资有限公司 | Shopping method by using ultrasonic waves applied to retail store |
| CN105024764A (en) * | 2015-07-24 | 2015-11-04 | 上海斐讯数据通信技术有限公司 | Audio-format-based file transmission method and system |
| CN105235586A (en) * | 2015-09-21 | 2016-01-13 | 刘文园 | Wireless horn system used in urban no-horn region |
| CN105243850B (en) * | 2015-09-22 | 2016-08-17 | 福州市智聚物联科技有限公司 | Application generation information technology uses the method carrying out management and control to horn for vehicle |
| CN105810017B (en) * | 2016-04-08 | 2018-12-14 | 江苏大学 | A kind of prompt system and method for the substitution vehicle whistle based on truck traffic |
| WO2018032494A1 (en) * | 2016-08-19 | 2018-02-22 | Valeo Interior Controls (Shenzhen) Co., Ltd. | Vehicle intrusion detection system and process implemented in a vehicle |
| CN107147449A (en) * | 2017-07-17 | 2017-09-08 | 电子科技大学 | A kind of ultrasonic communication method of secret protection |
| CN107680604A (en) * | 2017-08-25 | 2018-02-09 | 深圳职业技术学院 | Vehicle whistle coded system and coding method |
| CN108528331A (en) * | 2018-03-30 | 2018-09-14 | 斑马网络技术有限公司 | Vehicle, ultrasonic system and device and its information interacting method |
| CN108973846A (en) * | 2018-06-13 | 2018-12-11 | 苏州创存数字科技有限公司 | A kind of control method and its device of vehicle whistle |
| US11328604B2 (en) | 2019-04-02 | 2022-05-10 | Volvo Car Corporation | Individual alert system and method |
| CN110109443B (en) * | 2019-05-13 | 2021-11-26 | 上海英恒电子有限公司 | Safe communication method and device for vehicle diagnosis, storage medium and equipment |
| CN110910667A (en) * | 2019-12-10 | 2020-03-24 | 江苏蒲公英无人机有限公司 | Vehicle reminding information transmission method based on sound waves |
| CN113611078A (en) * | 2021-07-26 | 2021-11-05 | 李孝贤 | Outgoing security management system and information transmission method |
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| US6133849A (en) * | 1996-02-20 | 2000-10-17 | Unity Wireless Systems Corporation | Control signal coding and detection in the audible and inaudible ranges |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2754939Y (en) * | 2003-06-09 | 2006-02-01 | 费向全 | Signal remote controller of motor-driven car |
| KR100536309B1 (en) * | 2003-09-03 | 2005-12-12 | 기아자동차주식회사 | Car collision prevention device and its control method |
| CN102299747A (en) * | 2010-06-22 | 2011-12-28 | 上海云途信息技术有限公司 | Device, system and method for performing safe data communication based on sound waves |
| CN202463721U (en) * | 2011-11-17 | 2012-10-03 | 唐梓蛟 | Electronic early warning device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6133849A (en) * | 1996-02-20 | 2000-10-17 | Unity Wireless Systems Corporation | Control signal coding and detection in the audible and inaudible ranges |
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