CN101973210A - Multifunctional intelligent vehicle start and safety protection system - Google Patents
Multifunctional intelligent vehicle start and safety protection system Download PDFInfo
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- CN101973210A CN101973210A CN 201010199428 CN201010199428A CN101973210A CN 101973210 A CN101973210 A CN 101973210A CN 201010199428 CN201010199428 CN 201010199428 CN 201010199428 A CN201010199428 A CN 201010199428A CN 101973210 A CN101973210 A CN 101973210A
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Abstract
The invention belongs to the technical field of automatic control, in particular to a multifunctional intelligent vehicle start and safety protection system. The system comprises a central processor, wherein the input end of the central processor is connected with a drunk driving prevention module, a fatigue driving prevention module and a severe weather navigation module, while the output end is connected with a voice prompt module, a liquid crystal display module and a start control module, and the start control module is connected with a vehicle engine start system; the drunk driving prevention module comprises a pressure sensor and an alcohol detection sensor which are connected to a CPU (Central Processing Unit) through a signal amplifier and an analog to digital converter; the fatigue driving prevention module comprises a timer, and the timer is started along with the start of the vehicle through the CPU; the severe weather navigation module comprises an ultrasonic distance measuring module; and the ultrasonic distance measuring module and a vehicle speed information output end are together connected to the CPU. The invention can effectively and originally suppress traffic accidents and has the advantages of good compatibility and strong realizability.
Description
Technical field
The invention belongs to the automatic control technology field, be specifically related to a kind of multi-purpose vehicle(MPV) intelligent starting and security protection system that prevents drunken driving, prevents fatigue driving and inclement weather navigation feature that have.
Background technology
Now, along with the continuous increase of vehicle, traffic accident becomes " the first in the world evil ", and China is the maximum country of toll on traffic in the world.From later 1980s so far, year rank first in the world surplus China's (not comprising the area, Hong Kong, Macao and Taiwan) toll on traffic continuous ten.Though the Chinese automobile owning amount only accounts for 3% of the world, and toll on traffic accounts for 16% of the world.Circulate a notice of according to Public Security Department of the Ministry of Public Security, 2009,238351 of road traffic accidents took place in the whole nation altogether, caused 67759 people's death, 275125 people injured, direct property loss reaches 9.1 hundred million yuan, and traffic accident has caused great infringement for the country and people's lives and properties.Wherein, severe weather conditions such as illegal driving behavior such as drunken driving, fatigue driving, furious driving and rain, snow, mist are the major causes that causes road traffic accident to take place.
Traffic accident serious threat is to the safety of the country and people's lives and properties.2009, " People's Republic of China's law on road traffic safety " of up-to-date modification strengthened the punishment to drunken driving, fatigue driving, furious driving.Yet legal measure can not fundamentally reduce the generation of traffic accident.In order to reduce the generation of traffic accident, response state's laws rules, exploitation one cover can effectively be contained dangerous driving behaviors such as drunken driving, fatigue driving, furious driving, the intelligent monitoring vehicle condition, and the automobile safety system of auto navigation is very necessary under the inclement weather.
Summary of the invention
The purpose of this invention is to provide a kind of by various sensors collection signals, data are input to the central process unit chip and carry out data handing behind signal amplification, analogue to digital conversion, treater realizes that according to the data of gathering automobile intelligent starts and the security protection system of each function.
The present invention realizes above-mentioned purpose by the following technical solutions: this system comprises a central processor CPU, its input end is connected with anti-drunken driving module, anti-fatigue-driving module and inclement weather navigation module, its mouth is connected with voice cue module, LCD MODULE and start-up control module, wherein, the start-up control module is connected with the engine start system of automobile; Described anti-drunken driving module comprises the pressure sensor and the alcohol detection sensor that is installed on operating seat the place ahead that are installed on the operating seat, and both are connected on the CPU by signal amplifier and A and D converter; Described anti-fatigue-driving module comprises a timer, and the startup of timer starts with the startup of automobile by CPU; Described inclement weather navigation module comprises ultrasonic distance measuring module, and ultrasonic distance measuring module and car speed information output are connected on the CPU in the lump.
More particularly, described CPU adopts device AT89C52, and pressure sensor adopts device JHBM-7, and the alcohol detection sensor adopts device TGS822, and A and D converter adopts device ADC0809; Described timer adopts device DS13024; Described ultrasonic distance measuring module comprises ultrasonic transmitter and ultrasonic receiver.
The generation that the present invention can drive when intoxicated from the source containment effectively.When the driver is sitting on the steering position, the pressure sensor that is installed on the seat is experienced pressure, the anti-drunken driving function of start-up system, and the alcohol detection sensor begins to detect automatically the alcohol concentration in driver's blood, alcohol concentration is between 0-0.2g/L, and engine can start; Alcohol concentration surpasses 0.2g/L, and automobile can't be started for system's Control Engine.When the driver leaves operator's saddle, system stops the detection of alcohol concentration.Anti-drunken driving function just starts when having only the driver to be sitting on the operator's saddle, can prevent that like this other passenger drinks to the influence of alcohol detection on the car.
The present invention can reduce the probability that tired driver is driven effectively.Behind driver's start a car engine, the anti-fatigue-driving function in the system, timer picks up counting, and surpasses 4 hours if the driver drives continuously, just the voice reminder driver of system has been in fatigue state; If driving continuously, the driver surpasses 8 hours, just system sends tired alarm to the driver, and the voice reminder driver rest of stopping.
The present invention descends in relatively poor weather conditions of visbility such as rain, snow, mists, by the ultrasonic distance measuring module energy measurement and calculate the distance of automobile other vehicle or obstacle apart from the place ahead, and calculate the driving safety distance according to the instantaneous velocity of automobile, remind the driver that spacing is remained in the safety distance scope simultaneously, like this, just can effectively reduce the generation of traffic accidents such as rear-end collision.
The present invention can further ensure the safety of people's lives and properties effectively from the generation of source containment traffic accident.And system of the present invention meets the requirement of modern automobile industrial development, and automobile is developed to intellectuality, hommization, electromechanical integration direction.Compatibility of the present invention is good, and realizability is strong, can embed harmoniously in the control system of general-utility car.
Description of drawings
Fig. 1 is the system architecture diagram of the embodiment of the invention.
Fig. 2 is the structured flowchart of the anti-drunken driving module in the embodiment of the invention.
Fig. 3 is the structured flowchart of the anti-fatigue-driving module in the embodiment of the invention.
Fig. 4 is the structured flowchart of the inclement weather navigation module in the embodiment of the invention.
Fig. 5 is the circuit connection diagram of the anti-drunken driving module in the embodiment of the invention.
Fig. 6 is the circuit connection diagram of the anti-fatigue-driving module in the embodiment of the invention.
Fig. 7 is the circuit connection diagram of the inclement weather navigation module in the embodiment of the invention.
Fig. 8 is the ultrasonic transmitter circuit connection diagram of the ultrasonic distance measuring module in the embodiment of the invention.
Fig. 9 is the ultrasonic receiver circuit connection diagram of the ultrasonic distance measuring module in the embodiment of the invention.
Figure 10 is the way circuit connection diagram in the embodiment of the invention.
Figure 11 is the total program flow diagram of the software of the embodiment of the invention.
Figure 12 is the software program flow chart of the timer in the embodiment of the invention.
The specific embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 1, be the system architecture diagram of the embodiment of the invention.Native system adopts the AT89C52 central process unit, its input end is connected with anti-drunken driving module, anti-fatigue-driving module and inclement weather navigation module, its mouth is connected with voice cue module, LCD MODULE and start-up control module, wherein, the start-up control module is connected with the engine start system of automobile.
Referring to Fig. 2, anti-drunken driving module comprises a pressure sensor JHBM-7 and an alcohol detection sensor TGS822 who is installed on operating seat the place ahead who is installed on the operating seat, and both deliver to signal on the AT89C52 by A and D converter ADC0809.The gas that this module is breathed out to the driver by the alcohol detection sensor carries out alcohol concentration and detects, the signal of alcohol detection sensor acquisition, handle through input processor behind signal amplification, the analogue to digital conversion, whether the alcohol concentration that treater can calculate in driver's blood surpasses the state's laws standard, and comes the break-make of Control Engine ignition circuit by the start-up control module with this.After detecting signal, the pressure sensor on the operator's saddle (represent the driver to be about to start vehicle), the alcohol detection sensor just begins to detect the alcohol content of driver institute breath, signal is converted to digital signal input AT89C52 treater through ADC0809, and the signal processor of exporting according to high sensitivity alcohol detection sensor will provide different control signals.System comes Control of Automobile whether to start according to the good alcohol concentration threshold value of software set: threshold value A: 0-0.2g/L does not detect alcohol, safe condition, the normal startup; Threshold value B: greater than 0.2g/L, drunken driving, the force disconnect ignition circuit can not start.If the driver is a drunken driving, just AT89C52 starts voice cue module, LCD MODULE shows the alcohol content in the driver physical simultaneously.Fig. 5 is the detailed circuit connection diagram of anti-drunken driving module.
Referring to Fig. 3, the anti-fatigue-driving module comprises a timer DS13024, and the startup of timer DS13024 is moved by the actuation signal of the automobile that processor A T89C52 is obtained.Timer just picks up counting during automobile starting, judges driver's degree of fatigue then according to the time of driver driving.Regularly initial value was made as 8 hours, when timing after 4 hours, produced once and interrupted, and started voice cue module, reminded the driver to be in fatigue state this moment, and behind the voice reminder, timer continues timing.When timer overflows (8 hours), the voice cue module continuous alarm reminds the driver at this moment just in fatigue driving, and suggestion is stopped and had a rest.If the driver presses when stopping alarm button, voice cue module stops to report to the police, and timer restarts timing.Fig. 6 is an anti-fatigue-driving module detail circuits connection diagram.
Referring to Fig. 4, the inclement weather navigation module comprises ultrasonic distance measuring module, and ultrasonic distance measuring module is input to it information that obtains on the processor A T89C52 with car speed information.Ultrasonic distance measuring module is made up of ultrasonic transmitter and ultrasonic receiver two parts.System software is according to the time difference between ultrasonic transmitter emission super sonic and the ultrasonic receiver reception reflection echo, calculates the distance of automobile other vehicle or obstacle apart from the place ahead.Software is set a safety distance threshold value according to the instant speed of a motor vehicle again, and when spacing was lower than this threshold value, voice cue module started immediately, reminds the driver to remain a safe distance behind the car in front, and is in the safety traffic state up to automobile.Fig. 7 is an inclement weather navigation module detail circuits connection diagram.Referring to Fig. 8, be the circuit connection diagram of ultrasonic transmitter in the ultrasonic distance measuring module; As seen from the figure, the ultrasonic emitting part is launched super sonic by stable PWM (40KHz) pulse wave that the I/O port utilizes the timer of micro controller system to produce, six inverter buffers in ultrasonic transmit circuit/conv CD4049 has comprised 6 not gates altogether, circuit has only used 3 among the figure, in order to prevent to disturb or caused whole C D4049 to damage by electrostatic breakdown, 3 not gates of that side of not using are stringed together do ground connection processing, when control end is exported a series of fixed frequency pulse, add positive voltage and inverse voltage with regard to fixed frequency on piezoceramic type ultrasound transmitting transducer T-40-16, send high-performance super sonic, resulting waveform is more effective than other modes.Referring to Fig. 9, be the circuit connection diagram of ultrasonic receiver in the ultrasonic distance measuring module; As seen from the figure, super sonic receiving transducer R-40-16 with the conversion of the echoed signal that receives after through after the preliminary filtering of electric capacity, enter 1 pin of infrared ray detector receiver CX20106A, preamplifier through CX20106A, amplitude limit amplifies, bandpass filter (central frequency is 40KHZ), detecter and comparator, pass through the in-to-in shaping circuit at last, export external interrupt 0 (P3.3) mouth of micro controller system from 7 pin to; When chip receives the signal of 40KHZ, the output of 7 pin transfers low level to by high level, when 0 mouthful of micro controller system external interrupt detects the falling edge of incoming signal or low level, produces immediately and interrupts, stop Timer T0 simultaneously, thereby obtain the hypracoustic echo time.
Referring to Figure 10, be the way circuit connection diagram of the embodiment of the invention, it comprises the circuit diagram of above-mentioned each module.
Figure 11 is the total program flow diagram of the software of the embodiment of the invention, and Figure 12 is the software program flow chart of timer part wherein.
Claims (3)
1. multi-purpose vehicle(MPV) intelligent starting and security protection system, it is characterized in that: this system comprises a central processor CPU, its input end is connected with anti-drunken driving module, anti-fatigue-driving module and inclement weather navigation module, its mouth is connected with voice cue module, LCD MODULE and start-up control module, wherein, the start-up control module is connected with the engine start system of automobile; Described anti-drunken driving module comprises the pressure sensor and the alcohol detection sensor that is installed on operating seat the place ahead that are installed on the operating seat, and both are connected on the CPU by signal amplifier and A and D converter; Described anti-fatigue-driving module comprises a timer, and the startup of timer starts with the startup of automobile by CPU; Described inclement weather navigation module comprises ultrasonic distance measuring module, and ultrasonic distance measuring module and car speed information output are connected on the CPU in the lump.
2. multi-purpose vehicle(MPV) intelligent starting according to claim 1 and security protection system, it is characterized in that: described CPU adopts device AT89C52, pressure sensor adopts device JHBM-7, and the alcohol detection sensor adopts device TGS822, and A and D converter adopts device ADC0809; Described timer adopts device DS13024; Described ultrasonic distance measuring module comprises ultrasonic transmitter and ultrasonic receiver.
3. multi-purpose vehicle(MPV) intelligent starting according to claim 2 and security protection system, it is characterized in that: described ultrasonic transmitter comprises six inverter buffers/conv CD4049, with 3 not gates of CD4049 one side ground connection that is together in series, the not gate of opposite side is connected with piezoceramic type ultrasound transmitting transducer T-40-16; Described ultrasonic receiver comprises super sonic receiving transducer R-40-16, R-40-16 is connected by 1 pin of capacitor filter with infrared ray detector receiver CX20106A input end, and 7 pin of CX20106A mouth are connected on 0 mouthful of external interrupt P3.3 of micro controller system.
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| CN 201010199428 CN101973210A (en) | 2010-06-12 | 2010-06-12 | Multifunctional intelligent vehicle start and safety protection system |
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| CN 201010199428 CN101973210A (en) | 2010-06-12 | 2010-06-12 | Multifunctional intelligent vehicle start and safety protection system |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211522A (en) * | 2011-04-29 | 2011-10-12 | 四川长虹电器股份有限公司 | Unsafe state early-warning device and method for drivers |
| CN102230424A (en) * | 2011-05-25 | 2011-11-02 | 哈尔滨工程大学 | Intelligent safety protecting device for ship diesel engine |
| CN102535960A (en) * | 2012-01-12 | 2012-07-04 | 南开大学 | Cheating preventive alcohol lock interlocking device |
| CN102542728A (en) * | 2011-12-29 | 2012-07-04 | 广西卫通汽车信息技术有限公司 | Method and system for detecting fatigue driving |
| CN103593942A (en) * | 2012-06-22 | 2014-02-19 | 通用汽车环球科技运作有限责任公司 | Alert systems and methods for a vehicle |
| CN103646508A (en) * | 2013-11-25 | 2014-03-19 | 虞静丽 | Device and operation method for preventing fatigue driving |
| US9123215B2 (en) | 2012-06-22 | 2015-09-01 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| CN104943698A (en) * | 2014-03-25 | 2015-09-30 | 福特环球技术公司 | Driver assistance system |
| US9153108B2 (en) | 2012-06-22 | 2015-10-06 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| US9266451B2 (en) | 2012-06-22 | 2016-02-23 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| CN105539144A (en) * | 2016-01-11 | 2016-05-04 | 贵州大学 | Detection system for preventing drunk driving and control method thereof |
| US9349263B2 (en) | 2012-06-22 | 2016-05-24 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| US9493116B2 (en) | 2012-06-22 | 2016-11-15 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| CN106274481A (en) * | 2016-08-09 | 2017-01-04 | 西安科技大学 | Intelligent automobile drive assist system |
| US9701245B2 (en) | 2012-06-22 | 2017-07-11 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| CN107117179A (en) * | 2016-02-25 | 2017-09-01 | 福特全球技术公司 | The autonomous control noted based on occupant |
| CN107251105A (en) * | 2014-10-19 | 2017-10-13 | 阿赫塔尔·哈利勒 | Motor vehicle security protection and vehicle security system |
| CN111923730A (en) * | 2020-07-31 | 2020-11-13 | 上海博泰悦臻电子设备制造有限公司 | Vehicle accident prevention method, device and system |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211522A (en) * | 2011-04-29 | 2011-10-12 | 四川长虹电器股份有限公司 | Unsafe state early-warning device and method for drivers |
| CN102230424A (en) * | 2011-05-25 | 2011-11-02 | 哈尔滨工程大学 | Intelligent safety protecting device for ship diesel engine |
| CN102230424B (en) * | 2011-05-25 | 2012-08-22 | 哈尔滨工程大学 | Intelligent safety protecting device for ship diesel engine |
| CN102542728A (en) * | 2011-12-29 | 2012-07-04 | 广西卫通汽车信息技术有限公司 | Method and system for detecting fatigue driving |
| CN102535960A (en) * | 2012-01-12 | 2012-07-04 | 南开大学 | Cheating preventive alcohol lock interlocking device |
| US9349263B2 (en) | 2012-06-22 | 2016-05-24 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| CN103593942A (en) * | 2012-06-22 | 2014-02-19 | 通用汽车环球科技运作有限责任公司 | Alert systems and methods for a vehicle |
| US9123215B2 (en) | 2012-06-22 | 2015-09-01 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| US9701245B2 (en) | 2012-06-22 | 2017-07-11 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| US9153108B2 (en) | 2012-06-22 | 2015-10-06 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| US9266451B2 (en) | 2012-06-22 | 2016-02-23 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| US9493116B2 (en) | 2012-06-22 | 2016-11-15 | GM Global Technology Operations LLC | Alert systems and methods for a vehicle |
| CN103646508A (en) * | 2013-11-25 | 2014-03-19 | 虞静丽 | Device and operation method for preventing fatigue driving |
| CN104943698A (en) * | 2014-03-25 | 2015-09-30 | 福特环球技术公司 | Driver assistance system |
| CN107251105A (en) * | 2014-10-19 | 2017-10-13 | 阿赫塔尔·哈利勒 | Motor vehicle security protection and vehicle security system |
| CN105539144A (en) * | 2016-01-11 | 2016-05-04 | 贵州大学 | Detection system for preventing drunk driving and control method thereof |
| CN107117179A (en) * | 2016-02-25 | 2017-09-01 | 福特全球技术公司 | The autonomous control noted based on occupant |
| CN106274481A (en) * | 2016-08-09 | 2017-01-04 | 西安科技大学 | Intelligent automobile drive assist system |
| CN111923730A (en) * | 2020-07-31 | 2020-11-13 | 上海博泰悦臻电子设备制造有限公司 | Vehicle accident prevention method, device and system |
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Application publication date: 20110216 |