CN103390326A - Car accident automatic positioning and alarming system - Google Patents
Car accident automatic positioning and alarming system Download PDFInfo
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- CN103390326A CN103390326A CN2012101456830A CN201210145683A CN103390326A CN 103390326 A CN103390326 A CN 103390326A CN 2012101456830 A CN2012101456830 A CN 2012101456830A CN 201210145683 A CN201210145683 A CN 201210145683A CN 103390326 A CN103390326 A CN 103390326A
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Abstract
The invention discloses a car accident automatic positioning and alarming system. The car accident automatic positioning and alarming system mainly comprises a central processor, a GPS module, a GSM module and an MEMS acceleration sensor, wherein the GPS module, the GSM module and the MEMS acceleration sensor are respectively connected with the central processor. The car accident automatic positioning and alarming system has the advantages that an Atmega128 single-chip microcomputer is adopted as the central processor of the whole system and is connected with the MEMS acceleration sensor, the GPS module and the GSM communication module. The car accident automatic positioning and alarming system can automatically dial an emergency call after a car accident and informs the related department of the accurate position and the time of the car accident, so that a rescue team is dispatched immediately, more time is won to rescue the wounded, and more lives are saved.
Description
Technical field
The present invention relates to locating alarming equipment, specifically refer to the automatic car accident positioning alarm system.
Background technology
Fast development along with auto industry, the security performance that drives a car also becomes the emphasis of research gradually, when unescapable getting into an accident, how can fast traffic accident generation information be sent to medical treatment and traffic control department, this problem is the object that needs primary study we Jin time, if we work out, a kind of in the traffic accident generation, can traffic accident information be occurred to medical department in the very first time, medical department can be set out medical aid fast within the fastest time, can reduce greatly traffic accident personnel's mortality ratio.
According to relevant information, after the occurrence of the traffic accident, can arrive in rescue site in the very first time, traffic accident personnel's dead probability is few.But, due in remote districts,, when after the occurrence of the traffic accident, when the traffic accident personnel can not oneself seek help, while often by other staff, being found, and then notify relevant departments, in such traffic accident case, traffic accident personnel's mortality ratio is high.For this reason.The present invention is directed to this phenomenon, the spy wants to study a kind of, can be in the expection that traffic accident occurs, can be with the traffic accident place, the relevant informations such as time fast, notice medical treatment and relevant departments in the very first time.Can increase greatly traffic accident personnel's the probability of surviving.
Summary of the invention
The object of the present invention is to provide the automatic car accident positioning alarm system, this apparatus structure is simple, and cost is low, guarantees to greatest extent driver and passenger's safety when automobile meets accident collision, is one of target of auto industry pursuit.
Implementation of the present invention is as follows: the automatic car accident positioning alarm system mainly consists of central processing unit and the GPS module that is connected with central processing unit respectively, gsm module and MEMS acceleration transducer.
This automatic positioning alarm system design is connected central processing unit with MEMS acceleration transducer, GPS module, gsm module.Can inform exact position, time that relevant departments' traffic accident occurs in automatic placement of emergency calls after the occurrence of the traffic accident, make it in the very first time, send rescue group, give and rescue the wounded and strive for the more time, save more life.In case the MEMS acceleration transducer has detected acceleration change, central processing unit will be processed this data analysis, get into an accident if be judged to, gsm module passes to relevant department with the form of sending short messages or making a phone call with the locating information that GPS receives, and makes it send rapidly breakdown gang to carry out rescue work; Otherwise system automatically resets, cycle detection.
Described MEMS acceleration transducer mainly consists of X-axis sensor, oscillator, Y-axis sensor, Y-axis signal processing circuit, duty cycle modulator, the X-axis signal processing circuit that head and the tail connect successively; It is mainly detuner and the RC wave filter that is connected with detuner, to consist of that described Y-axis signal processing circuit is connected with the X-axis signal processing circuit; The detuner of described Y-axis signal processing circuit is connected with the Y-axis sensor, the detuner of X-axis signal processing circuit is connected with the X-axis sensor, and the RC wave filter of described Y-axis signal processing circuit is connected the RC wave filter and all with duty cycle modulator, is connected with the X-axis signal processing circuit, described duty cycle modulator also is connected with and accounts for RSET Rs, and the output terminal of duty cycle modulator is connected with central processing unit.
Described RC wave filter is mainly by RC casing of filter and the resistance R Fx(RFy that is arranged on RC casing of filter inside) and the capacitor C Fx(CFy that is arranged on RC casing of filter outside) and resistance R Fx(RFy) form.The capacitor C Fx(CFy of RC casing of filter outside) after being connected with resistance R Fx(RFy and connecting, its tie point is connected with duty cycle modulator, to the duty cycle modulator input signal.
Described central processing unit is the Atmega128 single-chip microcomputer.
Described MEMS acceleration transducer model is ADX L202JE.
The model of GPS module is SKYnav GB10.
The model of gsm module is TC35.
The MEMS acceleration transducer is a kind of electronic equipment that can measure accelerating force, and two kinds of models of angular accelerometer and linear accelerometer are arranged.The MEMS acceleration transducer model that native system adopts is ADX L202JE, this MEMS acceleration transducer in same silicon chip etching a Polysilicon Surface Micromachining sensor, an and integrated accurate information-processing circuit of cover.
The MEMS acceleration transducer mainly utilizes the polysilicon mechanism of surface micromachined and a differential capacitor to form by one.Under the effect of acceleration, polysilicon structure can produce skew changes capacitance.In signal processing circuit, the variable signal of differential capacitor is delivered in duty cycle modulator by a RC wave filter after by the modulator demodulation, be converted to by modulator the square wave that dutycycle and acceleration are directly proportional, the cycle of square wave, (T2) can determine by Rs.This square wave can directly be delivered to the Atmega128 single-chip microcomputer and process, and measures the width T1 of square-wave cycle T2 and arteries and veins by usage counter, thereby obtains the value of acceleration.
Acceleration: a=(T1/T2-Uog)/Ulg.
In formula: T2 is definite by accounting for RSET Rs, and its pass is T2=Rs/125M Ω; Uog is dutycycle corresponding to 0g, and its deformation values is 50%; Ulg represents the change in duty cycle value that the lg acceleration change causes, for ADXL202JE, the representative value of lg is 12.5%.
The invention has the advantages that: the central processing unit of Atmega128 single-chip microcomputer as whole system adopted in this automatic positioning alarm system design, with MEMS acceleration transducer, GPs locating module, gsm communication module, is connected.Can inform exact position, time that relevant departments' traffic accident occurs in automatic placement of emergency calls after the occurrence of the traffic accident, make it in the very first time, send rescue group, give and rescue the wounded and strive for the more time, save more life.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of MEMS acceleration transducer in the present invention.
Fig. 3 is square-wave cycle and pulse width schematic diagram in the present invention.
Embodiment
Embodiment one
As shown in Figure 1, 2, 3.
The central processing unit of Atmega128 single-chip microcomputer as whole system adopted in this automatic positioning alarm system design, with MEMS acceleration transducer, GPs locating module, gsm communication module, is connected.Can inform exact position, time that relevant departments' traffic accident occurs in automatic placement of emergency calls after the occurrence of the traffic accident, make it in the very first time, send rescue group, give and rescue the wounded and strive for the more time, save more life.The automatic car accident positioning alarm system, mainly consist of central processing unit and the GPS module that is connected with central processing unit respectively, gsm module and MEMS acceleration transducer.
In a single day MEMS acceleration transducer in native system has detected acceleration change, central processing unit will be processed this data analysis, get into an accident if be judged to, gsm module passes to relevant department with the form of sending short messages or making a phone call with the locating information that GPS receives, and makes it send rapidly breakdown gang to carry out rescue work; Otherwise system automatically resets, cycle detection.
Described MEMS acceleration transducer mainly consists of X-axis sensor, oscillator, Y-axis sensor, Y-axis signal processing circuit, duty cycle modulator, the X-axis signal processing circuit that head and the tail connect successively; It is mainly detuner and the RC wave filter that is connected with detuner, to consist of that described Y-axis signal processing circuit is connected with the X-axis signal processing circuit; The detuner of described Y-axis signal processing circuit is connected with the Y-axis sensor, the detuner of X-axis signal processing circuit is connected with the X-axis sensor, and the RC wave filter of described Y-axis signal processing circuit is connected the RC wave filter and all with duty cycle modulator, is connected with the X-axis signal processing circuit, described duty cycle modulator also is connected with and accounts for RSET Rs, and the output terminal of duty cycle modulator is connected with central processing unit.
Described RC wave filter mainly forms by being arranged on inner resistance R Fx and being arranged on outside capacitor C Fx and resistance R Fx.
Described central processing unit is the Atmega128 single-chip microcomputer.
Described MEMS acceleration transducer model is ADX L202JE.
The model of GPS module is SKYnav GB10.
The model of gsm module is TC35.
The MEMS acceleration transducer is a kind of electronic equipment that can measure accelerating force, and two kinds of models of angular accelerometer and linear accelerometer are arranged.The MEMS acceleration transducer model that native system adopts is ADX L202JE, this MEMS acceleration transducer in same silicon chip etching a Polysilicon Surface Micromachining sensor, an and integrated accurate information-processing circuit of cover.
The MEMS acceleration transducer mainly utilizes the polysilicon mechanism of surface micromachined and a differential capacitor to form by one.Under the effect of acceleration, polysilicon structure can produce skew changes capacitance.In signal processing circuit, the variable signal of differential capacitor is delivered in duty cycle modulator by a RC wave filter after by the modulator demodulation, be converted to by modulator the square wave that dutycycle and acceleration are directly proportional, the cycle of square wave, (T2) can determine by Rs.This square wave can directly be delivered to the Atmega128 single-chip microcomputer and process, and measures the width T1 of square-wave cycle T2 and arteries and veins by usage counter, thereby obtains the value of acceleration.
Acceleration: a=(T1/T2-Uog)/Ulg.
In formula: T2 is definite by accounting for RSET Rs, and its pass is T2=Rs/125M Ω; Uog is dutycycle corresponding to 0g, and its deformation values is 50%; Ulg represents the change in duty cycle value that the lg acceleration change causes, for ADXL202JE, the representative value of lg is 12.5%.
The invention has the advantages that: the central processing unit of Atmega128 single-chip microcomputer as whole system adopted in this automatic positioning alarm system design, with MEMS acceleration transducer, GPs locating module, gsm communication module, is connected.Can inform exact position, time that relevant departments' traffic accident occurs in automatic placement of emergency calls after the occurrence of the traffic accident, make it in the very first time, send rescue group, give and rescue the wounded and strive for the more time, save more life.
As mentioned above, can well realize the present invention.
Claims (6)
1. the automatic car accident positioning alarm system, is characterized in that: mainly central processing unit and the GPS module that is connected with central processing unit respectively, gsm module and MEMS acceleration transducer, consist of.
2. automatic car accident positioning alarm system according to claim 1 is characterized in that: described MEMS acceleration transducer mainly consists of X-axis sensor, oscillator, Y-axis sensor, Y-axis signal processing circuit, duty cycle modulator, the X-axis signal processing circuit that head and the tail connect successively; It is mainly detuner and the RC wave filter that is connected with detuner, to consist of that described Y-axis signal processing circuit is connected with the X-axis signal processing circuit; The detuner of described Y-axis signal processing circuit is connected with the Y-axis sensor, the detuner of X-axis signal processing circuit is connected with the X-axis sensor, and the RC wave filter of described Y-axis signal processing circuit is connected the RC wave filter and all with duty cycle modulator, is connected with the X-axis signal processing circuit, described duty cycle modulator also is connected with and accounts for RSET Rs, and the output terminal of duty cycle modulator is connected with central processing unit.
3. the described automatic car accident positioning alarm system of any one according to claim 1-2, it is characterized in that: described central processing unit is the Atmega128 single-chip microcomputer.
4. the described automatic car accident positioning alarm system of any one according to claim 1-2, it is characterized in that: described MEMS acceleration transducer model is ADX L202JE.
5. the described automatic car accident positioning alarm system of any one according to claim 1-2, it is characterized in that: the model of GPS module is SKYnav GB10.
6. the described automatic car accident positioning alarm system of any one according to claim 1-2, it is characterized in that: the model of gsm module is TC35.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459202A (en) * | 2014-11-28 | 2015-03-25 | 苏州市欧博锐自动化科技有限公司 | Vehicle acceleration detecting system |
| CN105046897A (en) * | 2015-07-31 | 2015-11-11 | 苏州玄禾物联网科技有限公司 | Automatic traffic accident positioning and detection system |
| CN105160804A (en) * | 2015-07-31 | 2015-12-16 | 苏州玄禾物联网科技有限公司 | Automatic car accident location and detection system based on filter circuit |
| US9650007B1 (en) | 2015-04-13 | 2017-05-16 | Allstate Insurance Company | Automatic crash detection |
| US10083551B1 (en) | 2015-04-13 | 2018-09-25 | Allstate Insurance Company | Automatic crash detection |
| US10902525B2 (en) | 2016-09-21 | 2021-01-26 | Allstate Insurance Company | Enhanced image capture and analysis of damaged tangible objects |
| US11361380B2 (en) | 2016-09-21 | 2022-06-14 | Allstate Insurance Company | Enhanced image capture and analysis of damaged tangible objects |
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| JPH0830885A (en) * | 1994-07-15 | 1996-02-02 | Sumitomo Electric Ind Ltd | Automatic on-vehicle accident reporting device and automatic accident reporting system |
| CN201765666U (en) * | 2010-08-23 | 2011-03-16 | 顾陈耀 | Automatic car accident positioning alarm controller |
| CN202523175U (en) * | 2012-05-11 | 2012-11-07 | 四川优的科技有限公司 | Traffic accident automatic positioning and alarm system |
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2012
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| JPH0830885A (en) * | 1994-07-15 | 1996-02-02 | Sumitomo Electric Ind Ltd | Automatic on-vehicle accident reporting device and automatic accident reporting system |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459202A (en) * | 2014-11-28 | 2015-03-25 | 苏州市欧博锐自动化科技有限公司 | Vehicle acceleration detecting system |
| US10083550B1 (en) | 2015-04-13 | 2018-09-25 | Allstate Insurance Company | Automatic crash detection |
| US9650007B1 (en) | 2015-04-13 | 2017-05-16 | Allstate Insurance Company | Automatic crash detection |
| US9767625B1 (en) | 2015-04-13 | 2017-09-19 | Allstate Insurance Company | Automatic crash detection |
| US9916698B1 (en) | 2015-04-13 | 2018-03-13 | Allstate Insurance Company | Automatic crash detection |
| US10083551B1 (en) | 2015-04-13 | 2018-09-25 | Allstate Insurance Company | Automatic crash detection |
| US10223843B1 (en) | 2015-04-13 | 2019-03-05 | Allstate Insurance Company | Automatic crash detection |
| US10650617B2 (en) | 2015-04-13 | 2020-05-12 | Arity International Limited | Automatic crash detection |
| US11074767B2 (en) | 2015-04-13 | 2021-07-27 | Allstate Insurance Company | Automatic crash detection |
| US11107303B2 (en) | 2015-04-13 | 2021-08-31 | Arity International Limited | Automatic crash detection |
| CN105160804A (en) * | 2015-07-31 | 2015-12-16 | 苏州玄禾物联网科技有限公司 | Automatic car accident location and detection system based on filter circuit |
| CN105046897A (en) * | 2015-07-31 | 2015-11-11 | 苏州玄禾物联网科技有限公司 | Automatic traffic accident positioning and detection system |
| US10902525B2 (en) | 2016-09-21 | 2021-01-26 | Allstate Insurance Company | Enhanced image capture and analysis of damaged tangible objects |
| US11361380B2 (en) | 2016-09-21 | 2022-06-14 | Allstate Insurance Company | Enhanced image capture and analysis of damaged tangible objects |
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Application publication date: 20131113 |