CN101639986A - Warning method and system for avoiding vehicle rear-end collision - Google Patents
Warning method and system for avoiding vehicle rear-end collision Download PDFInfo
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- CN101639986A CN101639986A CN200910063719A CN200910063719A CN101639986A CN 101639986 A CN101639986 A CN 101639986A CN 200910063719 A CN200910063719 A CN 200910063719A CN 200910063719 A CN200910063719 A CN 200910063719A CN 101639986 A CN101639986 A CN 101639986A
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Abstract
The invention relates to the technical field of vehicle safety, in particular to a warning method and system for avoiding vehicle rear-end collision. The method provided by the invention comprises thesteps of collecting vehicle state information according to sensor signals and converting state information into digital signals to be input into a central processing unit, judging whether the digitalsignal value exceeds a preset threshold value; if not, returning to step 2, and if yes, performing the next step; selecting a corresponding warning signal from a voice file, outputting to a voice circuit and giving out the warning signal. The system provided by the invention is composed of an acceleration transducer, a speed sensor, other sensors, a voice file, a voice module, a power amplifier circuit, a loudspeaker, a central processing unit and the like. When faults, such as tire burst, collision, roll over, secondary rear-end collision and the like, occur to a vehicle, the invention can notice a rear vehicle of the state of the vehicle with voice, can effectively prevent rear-end collision from occuring in severe weather and ensures the life safety of a driver.
Description
Technical field
The present invention relates to the automotive safety technical field, relate in particular to a kind of alarm method and system that prevents rear-end collision.
Background technology
The method that prevents rear-end collision is at present normally monitored the following distance of preceding vehicle, prevent that the vehicle of oneself and the vehicle of front from knocking into the back, but this method can not solve the injury of vehicle secondary, especially under the foggy weather condition, if minor failure only takes place the vehicle of oneself, and these minor failures may be fatal, because the perspective of dense fog is not enough, when casting anchor of these faults will cause fatal knocking into the back, can cause bigger casualties, property loss.
At the prior art above shortcomings, the invention provides a kind of automobile after having an accident, prevent that the back vehicle from continuing the alarm method that prevents rear-end collision and the system of collision, vehicle is constituted the threat of knocking into the back, ensure driver's life security with the vehicle of avoiding other.
Summary of the invention
The purpose of this invention is to provide a kind of alarm method and system that prevents rear-end collision, under the very low situation of inclement weather and visibility, avoid or reduce automobile knocking into the back.
For achieving the above object, the present invention adopts following technical scheme:
A kind of alarm method that prevents rear-end collision may further comprise the steps:
1. system start-up;
2. System self-test;
3. whether system breaks down, if fault is then opened hand control switch, manually manually selects corresponding alarm voice file according to fault, is transferred to sound circuit; If do not break down, then continue to carry out next step;
4. each sensor is according to setting the acquisition order Vehicular status signal;
5. status information is converted to digital signal, imports central processing unit, and compare with preset threshold;
6. judge whether to exceed pre-set threshold,, then return execution in step 4.,, then continue to carry out next step if exceed threshold value if do not exceed threshold value;
7. in voice document, select corresponding alerting signal, and export to sound circuit;
8. send alerting signal;
9. judging whether sensor detects in order finishes, if do not detect finish execution in step 4.; Execution in step 3. if detection finishes.
The sensor of step described in 4. comprises one or more in the multiple sensors such as acceleration transducer, speed pickup, attitude sensor, pressure transducer, gyrator.
In the various faults signals such as the alerting signal of step described in 7. comprises collision, emergency brake, overturns, blows out, lane change one or more, it is corresponding to detect the used sensor of above-mentioned state and the step sensor described in 4..
A kind of warning system that prevents rear-end collision comprises:
Acceleration transducer is used to measure the acceleration of vehicle ', and its status signal is converted to digital data transmission gives central processing unit;
Speed pickup is used to measure the travel speed of vehicle self, and the signal that vehicle mechanical is rotated becomes digital data transmission to give central processing unit by the optoelectronic induction conversion of signals;
Voice document has been stored a plurality of alerting signals in advance, and its output terminal is connected to central processing unit;
Voice module, power amplifier, loudspeaker have constituted the voice output circuit jointly, and the output terminal of voice module is connected to power amplifier, and the output terminal of power amplifier is connected to loudspeaker;
Central processing unit, be used for status signal according to the sensor input, judge whether to exceed pre-set threshold, to determine whether the outputting alarm signal is given the voice output circuit, select corresponding voice document simultaneously, be transferred to voice module and decode, give power amplifier and loudspeaker with decoded file transfer again.
Whether attitude sensor is used for the attitude of measuring vehicle, detect vehicle and overturn, and become digital data transmission to give central processing unit its state exchange;
Pressure transducer is used to measure the pressure of tire, detects whether vehicle blows out and convert the pressure state that collects to digital data transmission to central processing unit;
Stadimeter is used to measure distance with the rear car, and becomes information translation digital data transmission to arrive central processing unit;
Gyrator is used to detect the information of turn inside diameter, and status information is converted to digital data transmission gives central processing unit.
Wireless interspeaker is used for after central processing unit detects the vehicle trouble state, and system can also inform back vehicle to detected malfunction by wireless intercom system;
Hand control switch, be used under the malfunctioning situation of all the sensors, the voice document of artificial selection corresponding failure state is transferred to amplifying circuit by the voice module decoding, by loudspeaker or wireless intercom system, detected malfunction is informed back vehicle;
The input end of wireless interspeaker, hand control switch all connects from central processing unit.
The opening angle of loudspeaker is installed on the automobile chassis rear portion between 5 ° to 30 °.
The velocity information of central processing unit also can be passed through the total line drawing of CAN, directly reads from automobile self speed sensor.
The present invention has the following advantages and good effect:
1) in the faults such as blowing out at vehicle, collide, overturning, secondary are knocked into the back, can effectively prevent the generation of rear-end collision timely by the state of this car of voice informing back vehicle;
2) under inclement weather, can effectively avoid other vehicle that vehicle is constituted the threat of knocking into the back, ensured driver's life security.
Description of drawings
Fig. 1 is the alarm method process flow diagram that prevents rear-end collision that the present invention proposes.
Fig. 2 is the connection block diagram of the embodiment of the warning system that prevents rear-end collision that proposes of the present invention.
Fig. 3 is the connection block diagram of another embodiment of warning system that prevents rear-end collision that proposes of the present invention.
Fig. 4 is the scheme of installation of the warning system that prevents rear-end collision that proposes of the present invention.
Embodiment
The invention will be further described in conjunction with the accompanying drawings with specific embodiment below:
The following technical scheme of the concrete employing of the alarm method that prevents rear-end collision that the present invention proposes, the process flow diagram referring to shown in Figure 1 may further comprise the steps:
10. system start-up;
Each sensor is according to setting the acquisition order Vehicular status signal;
The sensor of step described in 4. comprises one or more in the multiple sensors such as acceleration transducer, speed pickup, attitude sensor, pressure transducer, gyrator;
In the various faults signals such as the alerting signal of step described in 7. comprises collision, emergency brake, overturns, blows out, lane change one or more, it is corresponding to detect the used sensor of above-mentioned state and the step sensor described in 4..
The following technical scheme of the concrete employing of the warning system that prevents rear-end collision that the present invention proposes, referring to shown in Figure 2, comprise acceleration transducer, speed pickup, other sensor, voice document, voice module, power amplifier, loudspeaker, central processing unit, wherein the output terminal of acceleration transducer, speed pickup, other sensor, voice document is connected to central processing unit, the output terminal of central processing unit is connected with voice module, the output terminal of voice module is connected to power amplifier, and the output terminal of power amplifier is connected to loudspeaker;
Acceleration transducer is used to measure the acceleration of vehicle ', and its status signal is converted to digital data transmission give central processing unit, speed pickup is used to measure the travel speed of vehicle self, and the signal that vehicle mechanical is rotated becomes digital data transmission to give central processing unit by the optoelectronic induction conversion of signals, voice document has been stored a plurality of alerting signals in advance, voice module, power amplifier, loudspeaker has constituted the voice output circuit jointly, central processing unit is used for the status signal according to the sensor input, judge whether to exceed pre-set threshold, to determine whether the outputting alarm signal is given the voice output circuit, select corresponding voice document simultaneously, be transferred to voice module and decode, give power amplifier and loudspeaker with decoded file transfer again.
The opening angle of native system loudspeaker is between 5 ° to 30 °, and such design can make that transaudient effect is best, and is positioned at the automobile chassis rear portion, referring to shown in Figure 4.
Of the present invention another is embodiment, as shown in Figure 3, be that the warning system that prevents rear-end collision that the present invention proposes can also optionally comprise other sensor, hand control switch, wireless interspeaker system, wherein other sensor comprises one or more in attitude sensor, pressure transducer, stadimeter, the gyrator etc.
Attitude sensor is used for the attitude of measuring vehicle, and becomes digital data transmission to give central processing unit its state exchange, and pressure transducer is used to measure the pressure of tire, and converts the pressure state that collects to digital data transmission to central processing unit.
Stadimeter is used to measure distance with the rear car, and becomes information translation digital data transmission to arrive central processing unit; Can detect the distance of front vehicle automatically by the stadimeter of postposition, the speed of a motor vehicle and the retarded velocity of this car in going out to travel by this car vehicle speed sensor and retarded velocity sensor, with stadimeter, the data input central processing unit that vehicle speed sensor and acceleration transducer record compares and digital processing, at different weather conditions, whether differentiate this car remains in the safe range with the back car and travels, if the actual measurement spacing is not in safe range, central processing unit can send the early warning acoustical signal from trend driver and front vehicle, automatically remind rear driver and the place ahead target to keep a safe distance in good time, avoided front vehicle may knock into the back to this car, when particularly driver's long-distance running and fatigue driving or driver are new hand, it are carried out in good time prompting seem and be even more important.
Gyrator is used to detect the information of turn inside diameter, and status information is converted to digital data transmission to central processing unit.
Wireless interspeaker is used for after central processing unit detects vehicle trouble state (collision, emergency brake, tumble, blow out), system can also inform back vehicle to detected malfunction by wireless intercom system, and wherein the input end of wireless interspeaker connects from central processing unit.
Hand control switch is used under the malfunctioning situation of all the sensors, the voice document of artificial selection corresponding failure state, be transferred to amplifying circuit by the voice module decoding, by loudspeaker or wireless intercom system, detected malfunction is informed back vehicle, and wherein the input end of hand control switch connects from central processing unit.
The velocity information of central processing unit also can be passed through the total line drawing of CAN, directly reads from automobile self speed sensor.
Rear-end collision early warning system of the present invention is a kind of dynamic vehicle security drive backup system, under the situation of not changing former car circuit, oil circuit and brake system, native system is installed, and concrete mounting structure figure is referring to shown in Figure 4.
Claims (8)
1. an alarm method that prevents rear-end collision is characterized in that, may further comprise the steps:
1. system start-up;
2. System self-test;
3. whether system breaks down, if fault is then opened hand control switch, manually manually selects corresponding alarm voice file according to fault, is transferred to sound circuit; If do not break down, then continue to carry out next step;
4. each sensor is according to setting the acquisition order Vehicular status signal;
5. status information is converted to digital signal, imports central processing unit, and compare with preset threshold;
6. judge whether to exceed pre-set threshold,, then return execution in step 4.,, then continue to carry out next step if exceed threshold value if do not exceed threshold value;
7. in voice document, select corresponding alerting signal, and export to sound circuit;
8. send alerting signal;
9. judging whether sensor detects in order finishes, if do not detect finish execution in step 4.; Execution in step 3. if detection finishes.
2. the alarm method that prevents rear-end collision according to claim 1 is characterized in that:
The sensor of step described in 4. comprises one or more in the multiple sensors such as acceleration transducer, speed pickup, attitude sensor, pressure transducer, gyrator.
3. the alarm method that prevents rear-end collision according to claim 1 is characterized in that:
In the various faults signals such as the alerting signal of step described in 7. comprises collision, emergency brake, overturns, blows out, lane change one or more, it is corresponding to detect the used sensor of above-mentioned state and the step sensor described in 4..
4. a warning system that prevents rear-end collision is characterized in that, comprising:
Acceleration transducer is used to measure the acceleration of vehicle ', and its status signal is converted to digital data transmission gives central processing unit;
Speed pickup is used to measure the travel speed of vehicle self, and the signal that vehicle mechanical is rotated becomes digital data transmission to give central processing unit by the optoelectronic induction conversion of signals;
Voice document has been stored a plurality of alerting signals in advance, and its output terminal is connected to central processing unit;
Voice module, power amplifier, loudspeaker have constituted the voice output circuit jointly, and the output terminal of voice module is connected to power amplifier, and the output terminal of power amplifier is connected to loudspeaker;
Central processing unit, be used for status signal according to the sensor input, judge whether to exceed pre-set threshold, to determine whether the outputting alarm signal is given the voice output circuit, select corresponding voice document simultaneously, be transferred to voice module and decode, give power amplifier and loudspeaker with decoded file transfer again.
5. the warning system that prevents rear-end collision according to claim 4 is characterized in that, also comprises:
Whether attitude sensor is used for the attitude of measuring vehicle, detect vehicle and overturn, and become digital data transmission to give central processing unit its state exchange;
Pressure transducer is used to measure the pressure of tire, detects whether vehicle blows out and convert the pressure state that collects to digital data transmission to central processing unit;
Stadimeter is used to measure distance with the rear car, and becomes information translation digital data transmission to arrive central processing unit;
Gyrator is used to detect the information of turn inside diameter, and status information is converted to digital data transmission gives central processing unit.
6. according to claim 4 or the 5 described warning systems that prevent rear-end collision, it is characterized in that, also comprise:
Wireless interspeaker is used for after central processing unit detects the vehicle trouble state, and system can also inform back vehicle to detected malfunction by wireless intercom system;
Hand control switch, be used under the malfunctioning situation of all the sensors, the voice document of artificial selection corresponding failure state is transferred to amplifying circuit by the voice module decoding, by loudspeaker or wireless intercom system, detected malfunction is informed back vehicle;
The input end of wireless interspeaker, hand control switch all connects from central processing unit.
7. according to claim 4 or the 5 described warning systems that prevent rear-end collision, it is characterized in that:
The opening angle of loudspeaker is installed on the automobile chassis rear portion between 5 ° to 30 °.
8. according to claim 4 or the 5 described warning systems that prevent rear-end collision, it is characterized in that:
The velocity information of central processing unit also can be passed through the total line drawing of CAN, directly reads from automobile self speed sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100637199A CN101639986B (en) | 2009-08-25 | 2009-08-25 | Warning system for avoiding vehicle rear-end collision |
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|---|---|---|---|
| CN2009100637199A CN101639986B (en) | 2009-08-25 | 2009-08-25 | Warning system for avoiding vehicle rear-end collision |
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| CN101639986A true CN101639986A (en) | 2010-02-03 |
| CN101639986B CN101639986B (en) | 2011-05-11 |
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| CN102211546A (en) * | 2010-04-01 | 2011-10-12 | 蔡渊 | Low-cost vehicular cautioning and triggering device and method for realizing butting and sounding with device |
| CN102717750A (en) * | 2012-07-13 | 2012-10-10 | 颜国兵 | Active alarming and rear-end collision preventing device of car |
| CN102842244A (en) * | 2012-09-19 | 2012-12-26 | 奇瑞汽车股份有限公司 | Prewarning anti-collision device and method for vehicle |
| CN103057502A (en) * | 2012-12-28 | 2013-04-24 | 南京恒知讯科技有限公司 | Device and method for detecting vehicle instantaneous acceleration and prompting automobile gestures and automobile |
| CN103158647A (en) * | 2013-03-12 | 2013-06-19 | 赵长义 | Intelligent real-time guiding system for automobile safe driving and control method thereof |
| CN103253259A (en) * | 2012-12-28 | 2013-08-21 | 湖南吉利汽车部件有限公司 | External braking fault alarm system and implementation method thereof |
| CN103318086A (en) * | 2013-07-17 | 2013-09-25 | 张运芽 | Automobile tailgating prevention and safe driving information exchange caution control system |
| CN103350663A (en) * | 2013-07-03 | 2013-10-16 | 韩锦 | Control system and control equipment of vehicle driving safety |
| CN104097643A (en) * | 2012-03-29 | 2014-10-15 | 王大伟 | Anti-rear-end and anti-collision method for rail and road motor cars in transportation |
| CN105128733A (en) * | 2015-08-21 | 2015-12-09 | 盐城工学院 | Novel intelligent automobile directive horn |
| CN105425167A (en) * | 2015-12-30 | 2016-03-23 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Battery revaluation and battery insurance evaluation system based on driving habit and battery use data |
| CN105785969A (en) * | 2015-01-09 | 2016-07-20 | 国际商业机器公司 | Identifying the origins of a vehicular impact and the selective exchange of data pertaining to the impact |
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| CN109305097A (en) * | 2018-11-22 | 2019-02-05 | 常州机电职业技术学院 | The sweeper night anti-prior-warning device that knocks into the back |
| CN109733394A (en) * | 2019-02-19 | 2019-05-10 | 广州小鹏汽车科技有限公司 | A kind of control method and vehicle control system of vehicle anti-rear collision |
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- 2009-08-25 CN CN2009100637199A patent/CN101639986B/en not_active Expired - Fee Related
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| CN102211546A (en) * | 2010-04-01 | 2011-10-12 | 蔡渊 | Low-cost vehicular cautioning and triggering device and method for realizing butting and sounding with device |
| CN104097643A (en) * | 2012-03-29 | 2014-10-15 | 王大伟 | Anti-rear-end and anti-collision method for rail and road motor cars in transportation |
| CN102717750A (en) * | 2012-07-13 | 2012-10-10 | 颜国兵 | Active alarming and rear-end collision preventing device of car |
| CN102842244A (en) * | 2012-09-19 | 2012-12-26 | 奇瑞汽车股份有限公司 | Prewarning anti-collision device and method for vehicle |
| CN102842244B (en) * | 2012-09-19 | 2015-08-12 | 奇瑞汽车股份有限公司 | A kind of vehicle early warning collision avoidance system and method |
| CN103057502A (en) * | 2012-12-28 | 2013-04-24 | 南京恒知讯科技有限公司 | Device and method for detecting vehicle instantaneous acceleration and prompting automobile gestures and automobile |
| CN103253259A (en) * | 2012-12-28 | 2013-08-21 | 湖南吉利汽车部件有限公司 | External braking fault alarm system and implementation method thereof |
| CN103253259B (en) * | 2012-12-28 | 2015-03-18 | 湖南吉利汽车部件有限公司 | External braking fault alarm system and implementation method thereof |
| CN103057502B (en) * | 2012-12-28 | 2015-11-25 | 南京恒知讯科技有限公司 | A kind of apparatus and method and automobile detecting vehicle instantaneous acceleration prompting automobile attitude |
| CN103158647A (en) * | 2013-03-12 | 2013-06-19 | 赵长义 | Intelligent real-time guiding system for automobile safe driving and control method thereof |
| CN103350663B (en) * | 2013-07-03 | 2018-08-31 | 韩锦 | The control system and control device of vehicle driving safety |
| CN103350663A (en) * | 2013-07-03 | 2013-10-16 | 韩锦 | Control system and control equipment of vehicle driving safety |
| CN103318086B (en) * | 2013-07-17 | 2015-12-02 | 张运芽 | Automobile anti-rear end collision and safe driving information interchange caution control system |
| CN103318086A (en) * | 2013-07-17 | 2013-09-25 | 张运芽 | Automobile tailgating prevention and safe driving information exchange caution control system |
| CN111396621A (en) * | 2014-09-15 | 2020-07-10 | 芙罗服务管理公司 | Sensor for a valve system, valve system including a sensor, and related methods |
| CN111396621B (en) * | 2014-09-15 | 2022-07-08 | 芙罗服务管理公司 | Sensor for a valve system, valve system including a sensor, and related methods |
| CN105785969A (en) * | 2015-01-09 | 2016-07-20 | 国际商业机器公司 | Identifying the origins of a vehicular impact and the selective exchange of data pertaining to the impact |
| CN105785969B (en) * | 2015-01-09 | 2018-12-04 | 国际商业机器公司 | Identify the selectivity exchange of the origin of Vehicular impact and the data about shock |
| CN105128733A (en) * | 2015-08-21 | 2015-12-09 | 盐城工学院 | Novel intelligent automobile directive horn |
| CN105128733B (en) * | 2015-08-21 | 2017-10-10 | 盐城工学院 | Novel automobile intelligence directive property loudspeaker |
| CN105425167A (en) * | 2015-12-30 | 2016-03-23 | 广东顺德中山大学卡内基梅隆大学国际联合研究院 | Battery revaluation and battery insurance evaluation system based on driving habit and battery use data |
| CN108515904A (en) * | 2018-04-09 | 2018-09-11 | 华南理工大学 | A kind of controlled automobile trumpet system and its working method |
| CN109305097A (en) * | 2018-11-22 | 2019-02-05 | 常州机电职业技术学院 | The sweeper night anti-prior-warning device that knocks into the back |
| CN109733394A (en) * | 2019-02-19 | 2019-05-10 | 广州小鹏汽车科技有限公司 | A kind of control method and vehicle control system of vehicle anti-rear collision |
| WO2022246623A1 (en) * | 2021-05-25 | 2022-12-01 | Chunlong Li | Emergency sound system for general vehicle and motorcycle |
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