CN1302444C - A digital image shooting system triggered by acceleration signal - Google Patents
A digital image shooting system triggered by acceleration signal Download PDFInfo
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- CN1302444C CN1302444C CNB2005100246746A CN200510024674A CN1302444C CN 1302444 C CN1302444 C CN 1302444C CN B2005100246746 A CNB2005100246746 A CN B2005100246746A CN 200510024674 A CN200510024674 A CN 200510024674A CN 1302444 C CN1302444 C CN 1302444C
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- digital image
- image shooting
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Abstract
The present invention discloses a digital image shooting system triggered by an acceleration signal, which comprises a digital image shooting device and an acceleration sensing device composed of an acceleration sensor, a signal amplifier and a control signal generator, wherein the acceleration sensor is connected with the control signal generator by the signal amplifier, and the control signal generator is connected with the digital image shooting device. The digital image shooting system triggered by an acceleration signal can carry out the image recording process of a condition when the emergency of a vehicle occurs, and the digital image shooting device is triggered to shoot and record an instantaneous on-site image of the occurrence of an accident of the vehicle when the acceleration of vehicle movement sensed by the acceleration sensor exceeds a set threshold value.
Description
Technical field
The present invention relates to a kind of image capturing apparatus, relate in particular to a kind of digital image shooting system that triggers by acceleration signal.
Background technology
In today of automobile high-speed development, vehicle driving safety has become a very important social concern, has caused people's extensive concern.The generation of car accident is often only in a flash, and it is extremely important how the state of moment takes place the real time record car accident.This is the analysis culprit, and provides admissible evidence to be extremely important for handle afterwards.Based on this purpose, in conjunction with acceleration sensing technology and digital image shooting technology, the present invention proposes a kind of digital image shooting system that is triggered by acceleration signal, is used for the have an accident image scene of moment of registration of vehicle.
Summary of the invention
Technical matters to be solved by this invention is: the digital image shooting system that provides a kind of registration of vehicle to have an accident the moment image scene, triggered by acceleration signal.
Technical scheme of the present invention is: a kind of digital image shooting system that is triggered by acceleration signal, the acceleration sensing device that comprises the digital image shooting device, constitutes by acceleration transducer, signal amplifier and control-signals generator, described acceleration transducer links to each other with described control-signals generator by described signal amplifier, and described control-signals generator links to each other with described digital image shooting device;
Described acceleration transducer carries out sensing to object linear movement acceleration and changes electric signal output into;
Described signal amplifier amplifies output with the ultra-weak electronic signal of described acceleration transducer output;
Described control-signals generator starts the signal that described digital image shooting device carries out image taking according to the acceleration rate threshold of setting to differentiating from the signal of described signal amplifier to produce, and takes control.
Optical imagery unit, image sensing cell, image storage unit and picture system controller constitute described digital image shooting device, described picture system controller control optical imagery unit, image sensing cell, image storage unit write down, store static state or dynamic image, and accept to start from the signal triggering of described control-signals generator.
Situation when the present invention can be to vehicle generation emergency condition is carried out image recording, when the motor racing acceleration of sensing when acceleration sensor surpasses preset threshold, to trigger digital image capturing device and take, the have an accident image scene of moment of registration of vehicle.Further describe content of the present invention below in conjunction with accompanying drawing.
Description of drawings
Accompanying drawing 1 is by the synoptic diagram of the digital image shooting system of acceleration signal triggering
The structural representation of accompanying drawing 2 acceleration sensing devices
Embodiment
In order to arrive the have an accident purpose of moment image scene of registration of vehicle, the present invention combines two kinds of technology; Digital image shooting technology and acceleration sensing technology.
The digital image shooting technology is the technology that photo-sensitive cells such as a kind of CCD of utilization or CMOS change optical imagery digital signal and handle and store.General digital image shooting device has the optical imagery unit, image sensing cell, image storage unit, several sections such as picture system controller, its principle of work is summarized as follows: the optical imagery unit can clearly be imaged on the optical imagery of the outside scenery of certain limit on the image sensing cell, image sensing cell is a two-dimensional array that is made of photo-sensitive cells such as CCD or CMOS, photo-sensitive cell changes the power of every bit light into electric signal, the picture system controller with these electric signal and corresponding coordinate through handling the digital document that is converted into specific format, then with these file storage in image storage unit.Utilize these files, can further show or export the image that is filmed by computing machine or other instruments.Start digital image shooting system and only take and need import a control signal by the picture system controller, general digital image shooting system is triggered by the people by a button.
The acceleration sensing technology is the technology that a kind of sense object movement velocity changes, and can change object linear movement acceleration magnitude into electric signal by acceleration transducer.This technology is used in automobile widely, and for example the startup of automobile air bag when bumping realizes by the change of acceleration transducer monitoring car speed.
The present invention proposes a kind of digital image shooting system that is triggered by acceleration signal in conjunction with digital image shooting technology and these two kinds of technology of acceleration sensing technology.Its ultimate principle is as follows: at first, utilize acceleration transducer to change the acceleration of motion size of automobile into electric signal, be sent in the control-signals generator after the amplification of electric signal by signal amplifier then, control-signals generator can compare input signal and preset threshold, when the accekeration that records surpasses preset threshold, control-signals generator produces a control signal and is input in the picture system controller, the picture system controller starts digital image shooting system and carries out image taking, and the image of shooting is stored in image storage unit so that query display.
With reference to the accompanying drawings 1, the present invention includes digital image shooting device and acceleration sensing device, wherein the optical imagery unit of digital image shooting device and image sensing cell will be aimed at the direction that needs shooting, and acceleration transducer need be fixed on the car body and the hand designations on degree of the will speed up sensor is aimed at the acceleration direction that needs monitoring; After the system start-up, acceleration sensing system is monitored the velocity variations of automobile in real time, when automobile runs into situation by brake hard, the pickup that acceleration transducer is sensed has surpassed preset threshold, control-signals generator is sent a signal triggering digital image shooting system and is taken, the image of taking can be static also can be dynamic, then information such as the image of Pai Sheing, shooting time and shooting brief acceleration value are saved in the image storage unit.In the time need reading relevant image to the emergency condition analysis that automobile takes place, just can obtain as long as image storage unit linked to each other with the relevant calculation machine equipment, also can show by the display device of equipping on the automobile.Utilize image storage unit can repeat erasable characteristics, can suitably set lower acceleration rate threshold (threshold value that this threshold value is opened well below air bag) and guarantee that each emergency condition can both be noted down reliably.
With reference to the accompanying drawings 2, the weak electric signal that acceleration transducer 1 produces amplifies by the signal amplifier that operational amplifier 2 constitutes, obtain one 0 voltage signal to 5V, by the analog to digital converter ADC0809 in the control-signals generator 3 analog quantity is converted to digital quantity then, this digital quantity is sent among the single-chip microcomputer 89C51 by data bus and handles then, calculating and differentiation by singlechip CPU, when accekeration surpasses the limit of setting, produce a signal by singlechip CPU by port P1.2, this signal outputs in the picture system controller of digital image shooting device by the isolation of optocoupler PC827.The model of acceleration transducer 1 is ADXL311EB in the present embodiment, and it is the operational amplifier of LM2904 that operational amplifier 2 adopts model.
Claims (5)
1, a kind of digital image shooting system that triggers by acceleration signal, it is characterized in that: the acceleration sensing device that it comprises the digital image shooting device, is made of acceleration transducer, signal amplifier and control-signals generator, described acceleration transducer links to each other with described control-signals generator by described signal amplifier, and described control-signals generator links to each other with described digital image shooting device;
Described acceleration transducer carries out sensing to object linear movement acceleration and changes electric signal output into;
Described signal amplifier amplifies output with the ultra-weak electronic signal of described acceleration transducer output;
Described control-signals generator starts the signal that described digital image shooting device carries out image taking according to the acceleration rate threshold of setting to differentiating from the signal of described signal amplifier to produce, and takes control.
2, digital image shooting system according to claim 1, it is characterized in that: optical imagery unit, image sensing cell, image storage unit and picture system controller constitute described digital image shooting device, described picture system controller control optical imagery unit, image sensing cell, image storage unit write down, store static state or dynamic image, and accept to start from the signal triggering of described control-signals generator.
3, digital image shooting system according to claim 2 is characterized in that: described image sensing cell is a kind of CCD or cmos circuit of responding to optical imagery.
4, digital image shooting system according to claim 2 is characterized in that: described optical imagery unit is constituted, is formed the optical system of picture rich in detail on described image sensing cell by optical lens.
5, digital image shooting system according to claim 2 is characterized in that: described image storage unit is the data-carrier store of temporary transient or longer-term storage that data are carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100246746A CN1302444C (en) | 2005-03-25 | 2005-03-25 | A digital image shooting system triggered by acceleration signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100246746A CN1302444C (en) | 2005-03-25 | 2005-03-25 | A digital image shooting system triggered by acceleration signal |
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| Publication Number | Publication Date |
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| CN1670784A CN1670784A (en) | 2005-09-21 |
| CN1302444C true CN1302444C (en) | 2007-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100246746A Expired - Fee Related CN1302444C (en) | 2005-03-25 | 2005-03-25 | A digital image shooting system triggered by acceleration signal |
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| CN (1) | CN1302444C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11145196B2 (en) * | 2018-03-02 | 2021-10-12 | International Business Machines Corporation | Cognitive-based traffic incident snapshot triggering |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5087051B2 (en) * | 2009-07-02 | 2012-11-28 | 富士通テン株式会社 | Image generating apparatus and image display system |
| CN104055243B (en) * | 2014-01-09 | 2016-07-13 | 奉化市骏兴玩具有限公司 | A kind of crashproof overcoat of vehicle airbag |
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| US5455768A (en) * | 1992-11-06 | 1995-10-03 | Safetran Traffic Systems, Inc. | System for determining vehicle speed and presence |
| FR2732471A1 (en) * | 1995-04-03 | 1996-10-04 | Sfim Trafic Transport | Method for measuring space separating two cars driving on same lane |
| CN1452138A (en) * | 2003-05-05 | 2003-10-29 | 大连市公安局交通警察支队 | System for automatic taking vehicle driving over speed limit and running method thereof |
| CN1521702A (en) * | 2003-01-29 | 2004-08-18 | 杭州东辰信息科技有限公司 | Novel highway overspeed grasp shooting system |
| CN1545076A (en) * | 2003-11-21 | 2004-11-10 | 姜 毅 | A two-way radar speed-measuring video capture equipment |
| US6836238B1 (en) * | 2001-10-09 | 2004-12-28 | Escort Inc. | Police radar/laser detector with integral vehicle parameter display using a vehicle interface |
| KR20050011217A (en) * | 2003-07-22 | 2005-01-29 | 삼성전자주식회사 | Apparatus and method for measuring speed of land vehicle using accelerometer |
| CN2781676Y (en) * | 2005-03-25 | 2006-05-17 | 上海百太信息科技有限公司 | Digital image shooting system triggered by acceleration signal |
-
2005
- 2005-03-25 CN CNB2005100246746A patent/CN1302444C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455768A (en) * | 1992-11-06 | 1995-10-03 | Safetran Traffic Systems, Inc. | System for determining vehicle speed and presence |
| FR2732471A1 (en) * | 1995-04-03 | 1996-10-04 | Sfim Trafic Transport | Method for measuring space separating two cars driving on same lane |
| US6836238B1 (en) * | 2001-10-09 | 2004-12-28 | Escort Inc. | Police radar/laser detector with integral vehicle parameter display using a vehicle interface |
| CN1521702A (en) * | 2003-01-29 | 2004-08-18 | 杭州东辰信息科技有限公司 | Novel highway overspeed grasp shooting system |
| CN1452138A (en) * | 2003-05-05 | 2003-10-29 | 大连市公安局交通警察支队 | System for automatic taking vehicle driving over speed limit and running method thereof |
| KR20050011217A (en) * | 2003-07-22 | 2005-01-29 | 삼성전자주식회사 | Apparatus and method for measuring speed of land vehicle using accelerometer |
| CN1545076A (en) * | 2003-11-21 | 2004-11-10 | 姜 毅 | A two-way radar speed-measuring video capture equipment |
| CN2781676Y (en) * | 2005-03-25 | 2006-05-17 | 上海百太信息科技有限公司 | Digital image shooting system triggered by acceleration signal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11145196B2 (en) * | 2018-03-02 | 2021-10-12 | International Business Machines Corporation | Cognitive-based traffic incident snapshot triggering |
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| CN1670784A (en) | 2005-09-21 |
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Granted publication date: 20070228 Termination date: 20100325 |