CN201998942U - Theftproof control device with sound control function for automobile - Google Patents
Theftproof control device with sound control function for automobile Download PDFInfo
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- CN201998942U CN201998942U CN2011200458007U CN201120045800U CN201998942U CN 201998942 U CN201998942 U CN 201998942U CN 2011200458007 U CN2011200458007 U CN 2011200458007U CN 201120045800 U CN201120045800 U CN 201120045800U CN 201998942 U CN201998942 U CN 201998942U
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Abstract
The utility model discloses a theftproof control device with a sound control function for an automobile, comprising an automobile starting controller, a remote control unit and a sound acquisition unit. The controller consists of a remote control receiving unit, a sound coding and decoding device, a sound prompt unit, a DSP (digital signal processor) central processor, a storage unit and an ignition loop relay of the automobile. After sound signals acquired by the sound acquisition unit are processed, digital sound signals output by the sound coding and decoding device are transmitted to the DSP central processor, and signals output by the processor control the ignition loop relay of the automobile. The DSP central processor outputs signals, and then prompt sounds are output through the sound prompt unit and a loudspeaker. The remote control receiving unit receives signals of the remote control unit, the signals are processed by the DSP central processor, and the output signals can also control the ignition loop relay of the automobile. Since the ignition system of the automobile is controlled by sounds of the owner of the automobile, the theftproof control device with the sound control function is very convenient to use, and even a theft has the key of the automobile, the automobile can not be driven.
Description
Technical field
This equipment relates to automobile burglar, speech recognition technology field, is a kind of vehicle anti-theft control device of controlling by speaker's speech recognition technology with voice control function.
Background technology
Automotive theft proof system is essential safety apparatus on present each automobile basically.Existing anti-theft system majority is just reported to the police, and the cracksman is played the effect of caution, but it is stolen fundamentally not solve vehicle, and rate of false alarm is very high, and horn for vehicle sound, setting off firecrackers and thundering or the like all can make its flase alarm.Some systems can inform alarm message to the car owner in the mode of information or phone by the GSM networking, in case but the rate of false alarm height can influence car owner's normal operation life, cause when vehicle genuine stolenly, it is flase alarm that the car owner confirms as, and does not go to comprehend.In case the car owner is arranged again with key loss, other people just can drive away car very easily.These burglary-resisting installations fundamentally do not solve the stolen problem of automobile.
The utility model content
At the deficiency that above-mentioned automotive theft proof system exists, this novel voice-operated vehicle anti-theft control device that provides a kind of by the car owner with voice control function.
For realizing purpose of the present invention, this is novel takes following technical scheme:
This vehicle anti-theft control device, it mainly comprises: remote controller, car engine controller and voice collecting unit; Its car engine controller is formed and is connected with automobile power source by remote control receiving element, audio coder ﹠ decoder (codec), voice alerting unit, DSP central process unit, memory cell, automotive ignition loop relay; Described voice collecting unit changes into analog signal with voice signal and delivers to the audio coder ﹠ decoder (codec) input end, audio digital signals through this demoder output is transferred to the DSP central process unit, current signal through this treater output is delivered to automotive ignition loop relay input end, its open contact is connected in series in the loop of starting motor of automobile, and DSP central process unit output serial ports end connects memory cell and voice alerting unit respectively; Described remote control receiving element receives the signal of remote controller, and the signal that this signal is handled output through the DSP central process unit is delivered to automotive ignition loop relay.
Described audio coder ﹠ decoder (codec) is adopted stereo audio encoding/decoding chip TLV320AIC23.
Described DSP central process unit adopts chip TMS320C5509A.
Described voice collecting unit adopts acoustic pickup CS-07.
Described remote control receiving element adopts the 304M receiver module.
It is ISD4003-04M that described voice alerting unit adopts chip, and this element output signal is exported voice suggestion by loud speaker.
The utility model compared with prior art beneficial effect is as follows:
The advantage of this device is to adopt speaker's speech recognition technology to carry out vehicle owner identification.This technology belongs to a kind of of biological identification technology, is a speech parameter according to reflection speaker's physiology and behavioural characteristic in the speech waveform, discerns the technology of speaker ' s identity automatically.Adopt high-revolving DSP digital signal processor to carry out speech recognition algorithm.Because the ignition system of automobile is to control by car owner's voice, convenient especially in the use, just passable as long as the car owner carries out normal speech utterance, other all follows normal start a car the same, adds any operation.Even and the cracksman had the key of car, there is not the car owner car can't driven away yet.
Description of drawings
Fig. 1 is the utility model block diagram;
Fig. 2 is system's main program principle of work diagram of circuit.
The specific embodiment
Below in conjunction with accompanying drawing this New Scheme is described in further detail:
As shown in Figure 1, be this new structure block scheme.It mainly comprises: remote controller, car engine controller and voice collecting unit; Its car engine controller is formed and is connected with automobile power source by remote control receiving element, audio coder ﹠ decoder (codec), voice alerting unit, DSP central process unit, memory cell, automotive ignition loop relay; Described voice collecting unit changes into analog signal with voice signal and delivers to the audio coder ﹠ decoder (codec) input end, audio digital signals through this demoder output is transferred to the DSP central process unit, current signal through this treater output is delivered to automotive ignition loop relay input end, its open contact is connected in series in the loop of starting motor of automobile, and DSP central process unit output serial ports end connects memory cell and voice alerting unit respectively; Described remote control receiving element receives the signal of remote controller, and the signal that this signal is handled output through the DSP central process unit is delivered to automotive ignition loop relay.
Memory cell comprises eeprom memory and SDRAM memory device, the EERPOM memory device adopts the memory device of SPI interface, be used for storing information such as program that DSP moves, car owner's sound model and remote control password, the SDRAM memory device adopts parallel data and address bus and dsp interface, DSP reads the program among the EEPROM, transfer in the SDRAM memory device and carry out, improve executing efficiency.
The voice collecting unit is acoustic pickup CS-07, and it is a kind of novel pickup device, has high sensitivity, low noise, and low distortion, characteristics such as volume is little, and operating voltage range is wide, its built-in power reverse protection circuit, power consumption is little, long transmission distance.It is responsible for voice signal is changed into analog signal, so that voice are for further processing.
Audio coder ﹠ decoder (codec) adopts TI company's T LV320AIC23, it is a performance-oriented stereo audio encoding/decoding chip that TI company releases, its analogue to digital conversion and digital to analogy conversion component height are integrated in chip internal, adopted advanced Sigma-delta oversampling technique, can in the frequency limit of 8K～96K, provide 16bit, 20bit, the sampling of 24bit and 32bit, the signal to noise ratio of analogue to digital conversion and digital to analogy conversion can reach 90DB and 100DB respectively.It can will be handled through the real-time DSP central process unit that is transferred to of decoded audio digital signals with the multichannel buffered serial port seamless link of DSP central process unit.
The DSP central process unit is the TMS320C5509A of TI company, it is the core of total system, have characteristics such as low-power consumption, processing speed be fast, high primary frequency can reach 300MHZ, its effect is the voice signal with input, by a series of algorithm process, reach the purpose of identification car owner identity.Reach this purpose, mainly comprise in the speech processing algorithm: pretreatment, feature extraction, model training, pattern match and logical decision functional module.
(1) pretreatment: comprise that mainly sampling and quantification, end-point detection, preemphasis are handled, windowing.
(2) feature extraction: adopt Mei Er cepstrum coefficient (MFCC) as speaker's personal characteristics parameter, its computation process is through Fast Fourier Transform (FFT) (FFT) with the pretreated audio digital signals of process, the signal that will be transformed into frequency domain again carries out the frequency spectrum delivery, pass through chopping sea bank of filters (Mel bank of filters) again and carry out Filtering Processing, then logarithm operation is done in all filter outputs, the vector that draws is done discrete cosine transform (DCT) (DCT) again, and the characteristic parameter Mei Er that finally obtains voice signal is to spectral coefficient (MFCC).
(3) model training: to the foundation of speaker model and the training of model parameter, be speaker's voice training process, typing car owner's sample sound in advance, after over-sampling and quantification, end-point detection, preemphasis processing, windowing and feature extraction, adopt the Baum-Welch algorithm that HMM (HMM) set up in car owner's voice, car owner's sound characteristic model just, and car owner's sound characteristic model deposited in the eeprom memory.
(4) pattern match and logical decision: test tone and speaker's Distance Matching is calculated, and the realization of this process is the identifying of speaker's voice, just the process of identity identification.At first be written into the HMM model of training, by typing to current speaker's voice, carry out pretreatment and feature extraction, calculate the MFCC parameter, and calculate the matching probability of MFCC feature and HMM model with the Viterbi algorithm, if the two characteristic matching then identification are passed through.
Automotive ignition loop relay, model is HHC67E-1Z, it is positioned at The whole control circuit inside, node can be by the electric current of 30A, its open contact is connected in series in the loop of starting motor of automobile, its break-make is controlled by the DSP central process unit, to reach closed or to cut off the purpose in starter motor loop.
The remote control receiving element cooperates respective remote control to use.The remote control receiving element is to have cipher protection function, only knows that the cipher remote control password could carry out corresponding action after receiving signal.Its function mainly comprises: user of service's registration, and have only the personnel of registration to come start a car by speech recognition system; Current vehicle is used speech identifying function and is started; The cancellation speech identifying function, direct-fire.
Voice alerting unit, the employing acp chip is ISD4003-04M.4 minutes monolithic recording playback time, tonequality is good, adopt the CMOS technology, include oscillator, anti-aliasing filter, smoothing filter, audio-frequency power amplifier, automatic silencing and many electrical level flash of high density storage array, the acoustic information of recording can be preserved 100 years under powering-off state, recorded repeatedly 100,000 times.Communicate by SPI agreement and DSP, the multi-functional buffered serial port of DSP can be connected with it easily, and control is stored in the recording playback of each address audio files of flash memory in this chip in advance.The aud. snl. of this chip output is exported through loud speaker by audio-frequency power amplifier chip LM4860, its role is to the current control step of wanting is carried out voice suggestion, the aud. snl. of this chip output, its role is to the current control step of wanting is carried out voice suggestion through loud speaker output by audio-frequency power amplifier chip LM4860.When carrying out identity registration, comprising: " would you please carry out identity registration, please the typing voice, please once more the typing voice, please wait for, the identity registration success " etc. prompt tone; After registering, when normally using this speech recognition system, comprise prompt tones such as " asking typing voice, authentication failure, please typing voice, authentication success again "; When using a teleswitch, comprise prompt tones such as " password input error, function code input error, speech recognition system are cancelled, speech recognition system is opened, password revise successfully ".Allow the be perfectly clear mode of operation of current system of car owner by these prompt tones, understand current needs and do what work.
System and device principle of work and working process:
Referring to accompanying drawing 2, during start, system will read the current state sign, if the car owner uses this system first, the loud speaker voice suggestion is then arranged, need carry out identity registration earlier, otherwise system will have voice suggestion directly to enter authentication process itself: at first, identity registration needs to enter registration mode by the remote controller cryptographic system, registration mode is the process of car owner's voice being carried out model training, its prompt tone according to system repeats the typing of any phrase sound of several times, it is sampled and quantize, end-point detection, preemphasis is handled, windowing and feature extraction, waiting system is set up model for the car owner, what adopt is that the Baum-Welch algorithm is set up HMM (HMM) to car owner's voice, set up the process of model and when finishing system all can do prompting, can know the process of setting up model very clearly, after obtaining system prompt registration and finishing, illustrate that model set up success and be saved in the eeprom memory.When system restarts next time, just can normally use this speech recognition system.
Before the igniting, power on to system by key, system wants the reading state sign equally, if the car owner had carried out identity registration, system will enter authentication process itself, i.e. the process that car owner's voice are discerned.After hearing the voice suggestion of system and device, just begin to carry out the typing of phrase sound, it is just effective at the phrase sound of registration time institute's typing that this phrase sound should be the car owner, otherwise system can not correctly discern car owner's identity.Next system discerns speaker's voice, equally these voice are sampled and quantification, end-point detection, preemphasis processing, windowing and these processing of feature extraction, calculate the MFCC parameter, and calculate the matching probability of the HMM model that MFCC feature and training the time set up with the Viterbi algorithm, if the match is successful, then speaker ' s identity is confirmed as the car owner, and system can connect automotive ignition loop relay closes, and the car owner just can normally use the key start a car.The match is successful if do not have, and then speaker ' s identity is not determined, and system will point out and carry out the voice typing once more.The speaker will have the chance of carrying out authentication 3 times, if voice typing number of times greater than 3, the ignition circuit relay will be disconnected by system, at this moment also can't start a car with key.
If need using a teleswitch, the car owner realizes corresponding function, then need not to wait for 3 times that in the typing of the laggard lang sound of the prompting of hearing the typing voice these 3 speech recognition process will can not pass through, system will not have prompt tone again afterwards, this moment car owner's realization corresponding function that just can use a teleswitch.When the car owner used a teleswitch input, the DSP central process unit can receive the coded message of encryption by the remote control receiving element, immediately this information was decoded, and this pairing function of encoding just can be realized in the decoding back.The function that remote controller can be realized mainly contains following several: identity registration, promptly set up new speaker's speech model; The cancellation speech identifying function, power on and do not need by speech recognition this moment, and system directly connects the ignition circuit relay, and vehicle can directly start by key; Also have the password modify feature in addition, can revise the remote control password at any time.
Claims (6)
1. vehicle anti-theft control device with voice control function, it is characterized in that: it mainly comprises: remote controller, car engine controller and voice collecting unit; Its car engine controller is formed and is connected with automobile power source by remote control receiving element, audio coder ﹠ decoder (codec), voice alerting unit, DSP central process unit, memory cell, automotive ignition loop relay; Described voice collecting unit changes into analog signal with voice signal and delivers to the audio coder ﹠ decoder (codec) input end, audio digital signals through this demoder output is transferred to the DSP central process unit, current signal through this treater output is delivered to automotive ignition loop relay input end, its open contact is connected in series in the loop of starting motor of automobile, and DSP central process unit output serial ports end connects memory cell and voice alerting unit respectively; Described remote control receiving element receives the signal of remote controller, and the signal that this signal is handled output through the DSP central process unit is delivered to automotive ignition loop relay.
2. by the described a kind of vehicle anti-theft control device with voice control function of claim 1, it is characterized in that: described audio coder ﹠ decoder (codec) adopts stereo audio encoding/decoding chip TLV320AIC23.
3. by claim 1 or 2 described a kind of vehicle anti-theft control devices with voice control function, it is characterized in that: described DSP central process unit adopts chip TMS320C5509A.
4. by the described a kind of vehicle anti-theft control device with voice control function of claim 1, it is characterized in that: described voice collecting unit adopts acoustic pickup CS-07.
5. by the described a kind of vehicle anti-theft control device with voice control function of claim 1, it is characterized in that: described remote control receiving element adopts the 304M receiver module.
6. by the described a kind of vehicle anti-theft control device with voice control function of claim 1, it is characterized in that: it is ISD4003-04M that described voice alerting unit adopts chip, and this unit output end signal is exported voice suggestion by loud speaker.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200458007U CN201998942U (en) | 2011-02-18 | 2011-02-18 | Theftproof control device with sound control function for automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200458007U CN201998942U (en) | 2011-02-18 | 2011-02-18 | Theftproof control device with sound control function for automobile |
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| CN201998942U true CN201998942U (en) | 2011-10-05 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582576A (en) * | 2012-03-15 | 2012-07-18 | 福州海景科技开发有限公司 | Vehicular burglary prevention and personal safety protection system based on voice recognition technique |
| CN103448632A (en) * | 2012-05-28 | 2013-12-18 | 百度在线网络技术（北京）有限公司 | Automobile control method and device |
| CN103573093A (en) * | 2013-07-31 | 2014-02-12 | 周志敏 | Control system for vehicle trunk lid capable of being opened and closed through speech control |
| CN104679683A (en) * | 2015-03-20 | 2015-06-03 | 四川特伦特科技股份有限公司 | DSP (Digital Signal Processor) processing plate with remote-controlled opening function |
| CN105227555A (en) * | 2015-09-30 | 2016-01-06 | 广州汽车集团股份有限公司 | Equipment starting method and system |
| CN105292130A (en) * | 2014-07-21 | 2016-02-03 | 广州汽车集团股份有限公司 | Method and system for imbedding voice standard data, and method and system for controlling vehicles to start through voice |
| CN106204855A (en) * | 2016-08-09 | 2016-12-07 | 福建省汽车工业集团云度新能源汽车股份有限公司 | A kind of Application on Voiceprint Recognition automobile accessing method |
| TWI581992B (en) * | 2014-11-26 | 2017-05-11 | 鴻海精密工業股份有限公司 | Vehicle intelligent key system |
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2011
- 2011-02-18 CN CN2011200458007U patent/CN201998942U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102582576A (en) * | 2012-03-15 | 2012-07-18 | 福州海景科技开发有限公司 | Vehicular burglary prevention and personal safety protection system based on voice recognition technique |
| CN103448632A (en) * | 2012-05-28 | 2013-12-18 | 百度在线网络技术（北京）有限公司 | Automobile control method and device |
| CN103448632B (en) * | 2012-05-28 | 2015-11-25 | 百度在线网络技术（北京）有限公司 | Automobile control method and device |
| CN103573093A (en) * | 2013-07-31 | 2014-02-12 | 周志敏 | Control system for vehicle trunk lid capable of being opened and closed through speech control |
| CN105292130A (en) * | 2014-07-21 | 2016-02-03 | 广州汽车集团股份有限公司 | Method and system for imbedding voice standard data, and method and system for controlling vehicles to start through voice |
| TWI581992B (en) * | 2014-11-26 | 2017-05-11 | 鴻海精密工業股份有限公司 | Vehicle intelligent key system |
| CN104679683A (en) * | 2015-03-20 | 2015-06-03 | 四川特伦特科技股份有限公司 | DSP (Digital Signal Processor) processing plate with remote-controlled opening function |
| CN104679683B (en) * | 2015-03-20 | 2018-01-05 | 四川特伦特科技股份有限公司 | A kind of DSP process plates with remote control open function |
| CN105227555A (en) * | 2015-09-30 | 2016-01-06 | 广州汽车集团股份有限公司 | Equipment starting method and system |
| CN105227555B (en) * | 2015-09-30 | 2020-06-12 | 广州汽车集团股份有限公司 | Equipment starting method and system |
| CN106204855A (en) * | 2016-08-09 | 2016-12-07 | 福建省汽车工业集团云度新能源汽车股份有限公司 | A kind of Application on Voiceprint Recognition automobile accessing method |
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