CN104723953A - Pedestrian detecting device - Google Patents
Pedestrian detecting device Download PDFInfo
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- CN104723953A CN104723953A CN201310698129.XA CN201310698129A CN104723953A CN 104723953 A CN104723953 A CN 104723953A CN 201310698129 A CN201310698129 A CN 201310698129A CN 104723953 A CN104723953 A CN 104723953A
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Abstract
The invention provides a pedestrian detecting device. The device comprises a laser radar device mounted on a grid for outputting a vehicle and pedestrian distance signal, an A/ D converter for converting the distance signal from an analog form into a digital form, and a single-chip microcomputer for receiving the distance signal in the digital and sending a corresponding control signal to a control panel, a microphone and a loudspeaker according to the distance signal, wherein the control panel comprises an indicator light which is turned on according to the control signal of the single-chip microcomputer.
Description
Technical field
The present invention relates to vehicle electronics field, refer to a kind of pedestrian detection device especially.
Background technology
The development of automobile not only creates great function to social economy, also brings important impact to the life of the mankind.Automobile become people trip main traffic instrument, its convenience be aircraft, steamer and train incomparable.
China is as newly emerging economy, and become global first automobile consumption state, the vehicle guaranteeding organic quantity of current China has broken through hundred million.Car is many, and road has been blocked up, and traffic accident also gets more and more, and a lot of traffic accident is because driver is unsighted or lack experience and cause, and can avoid completely.
And between existing self-propelled vehicle visual area, there is check frequency, chaufeur can cause unnecessary traffic accident due to erroneous judgement.It is anxious that such as emergent pedestrian often allows driver hide, and causes unnecessary personal injury, and for the injury of pedestrian, often owing to have little time or misoperation causes, even because operation mistake causes more serious injury.
Pedestrian is accounted for significant proportion by the accident of hitting in traffic accident.Such as in India, pedestrian's death accounts for more than 40% of traffic death toll, and in addition 40% is the death of other non-vehicle (as bicycle or light cavalry) driver.In Japan, pedestrian's death accounts for 28% of toll on traffic, and the death of bicycle and motor bike driver accounts for other 31%.Accident analysis shows, people--a major cause of car accidents is the pedestrian that chaufeur does not see on travel direction, or when seeing, braking is late.
In driving conditions, how hiding the pedestrian of appearance in time, is current auto manufacturing problem demanding prompt solution.
Summary of the invention
The present invention proposes a kind of pedestrian detection device, solves pedestrian in prior art and occurs suddenly causing reacting too late problem.
Technical scheme of the present invention is achieved in that
A kind of pedestrian detection device, comprising:
Be arranged on the laser radar apparatus on lattice canopy, export vehicle and passerby's range signal;
A/D converter, is converted to digital form by described range signal by analog form;
Micro controller system, receives the range signal of described digital form, and according to the corresponding control signal of described range signal to control panel, loud speaker and loudspeaker;
Described control panel comprises indicator lamp, and indicator lamp is lighted according to Single-chip Controlling signal.
Alternatively, described micro controller system is dsp processor.
Alternatively, described dsp processor is 32 fixed DSPs.
Alternatively, described dsp processor is TMS320F2812DSP.
Alternatively, described A/D converter is the built-in A/D converter of dsp processor.
The invention has the beneficial effects as follows: the distance being detected front pedestrian by laser radar apparatus, when pedestrian's distance vehicle reaches certain limit, remind driver by indicator lamp and loud speaker, remind pedestrian by loudspeaker, play the effect automatically reminded.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the control block diagram of pedestrian detection device of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
And between existing self-propelled vehicle visual area, there is check frequency, chaufeur can cause unnecessary traffic accident due to erroneous judgement.It is anxious that such as emergent pedestrian often allows driver hide, and causes unnecessary personal injury, and for the injury of pedestrian, often owing to have little time or misoperation causes, even because operation mistake causes more serious injury.
The present invention detects the distance of front pedestrian by laser radar apparatus, when pedestrian's distance vehicle reaches certain limit, reminds driver, reminds pedestrian by loudspeaker, play the effect automatically reminded by indicator lamp and loud speaker.
As shown in Figure 1, a kind of pedestrian detection device, comprising: be arranged on the laser radar apparatus 10 on lattice canopy, exports vehicle and passerby's range signal; A/D converter 11, is converted to digital form by described range signal by analog form; Micro controller system 40, receives the range signal of described digital form, and according to the corresponding control signal of described range signal to control panel 50, loud speaker 60 and loudspeaker 70; Described control panel 50 comprises indicator lamp, and indicator lamp is lighted according to Single-chip Controlling signal.
Be contained in laser radar apparatus on lattice canopy to scan the pedestrian of vehicle front, it sends one wave beam, and after meeting pedestrian, wave beam is reflected back toward sensor, then analyzes backward wave.
This system can detect the pedestrian far wearing dark black clothes apart from car 45m, and the pedestrian's reflectivity wearing white clothes is higher, and probe interval can reach 60m.
Preferably, described micro controller system is dsp processor, and above-mentioned controller can be TMS320F2812DSP, 32 fixed DSPs, it has the AD data acquisition of EVA, EVB task manager and supporting 12 16 passages, has abundant Peripheral Interface, as CAN, SCI etc.The ADC module of TMS320F2812 is 12 bit resolutions, has the A and D converter of pipeline organization, the built-in dual-sampling hold circuit of TMS320F2812, and when keeping data acquisition, window has and independently calibrates control in advance.And allow system to same Channel-shifted repeatedly, allow user to perform over-sampling algorithm, this more traditional single transformation result adds more solution, is conducive to the precision improving sampling.There is multiple trigger source can start ADC conversion.Fast speed transfer time, ADC clock can be configured to 25MHz, and the highest sampling bandwidth is 12.5MSPS.When building data acquisition system with TMS320F2812, need not external ADC, avoid complicated hardware design.
The present invention detects the distance of front pedestrian by laser radar apparatus, when pedestrian's distance vehicle reaches certain limit, reminds driver, reminds pedestrian by loudspeaker, play the effect automatically reminded by indicator lamp and loud speaker.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a pedestrian detection device, is characterized in that, comprising:
Be arranged on the laser radar apparatus on lattice canopy, export vehicle and passerby's range signal;
A/D converter, is converted to digital form by described range signal by analog form;
Micro controller system, receives the range signal of described digital form, and according to the corresponding control signal of described range signal to control panel, loud speaker and loudspeaker;
Described control panel comprises indicator lamp, and indicator lamp is lighted according to Single-chip Controlling signal.
2. pedestrian detection device as claimed in claim 1, it is characterized in that, described micro controller system is dsp processor.
3. pedestrian detection device as claimed in claim 2, it is characterized in that, described dsp processor is 32 fixed DSPs.
4. pedestrian detection device as claimed in claim 3, it is characterized in that, described dsp processor is TMS320F2812DSP.
5. pedestrian detection device as claimed in claim 4, it is characterized in that, described A/D converter is the built-in A/D converter of dsp processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698129.XA CN104723953A (en) | 2013-12-18 | 2013-12-18 | Pedestrian detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310698129.XA CN104723953A (en) | 2013-12-18 | 2013-12-18 | Pedestrian detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104723953A true CN104723953A (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310698129.XA Pending CN104723953A (en) | 2013-12-18 | 2013-12-18 | Pedestrian detecting device |
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| CN (1) | CN104723953A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828299A (en) * | 2016-12-27 | 2017-06-13 | 柳州市金岭汽车配件厂 | The control method of car horn |
Citations (6)
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| CN1802278A (en) * | 2003-04-09 | 2006-07-12 | 奥托里夫发展有限公司 | A pedestrian detecting system |
| DE102009009047A1 (en) * | 2009-02-16 | 2010-08-19 | Daimler Ag | Method for object detection |
| US20100253489A1 (en) * | 2009-04-02 | 2010-10-07 | Gm Global Technology Operations, Inc. | Distortion and perspective correction of vector projection display |
| CN202463844U (en) * | 2012-01-18 | 2012-10-03 | 安徽理工大学 | Pedestrian detection alarm system of mining electric locomotive |
| CN202873034U (en) * | 2012-11-04 | 2013-04-10 | 黑龙江科技学院 | Vehicle horn volume control system based on pedestrian detection |
| CN103455144A (en) * | 2013-08-22 | 2013-12-18 | 深圳先进技术研究院 | Vehicle-mounted man-machine interaction system and method |
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2013
- 2013-12-18 CN CN201310698129.XA patent/CN104723953A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802278A (en) * | 2003-04-09 | 2006-07-12 | 奥托里夫发展有限公司 | A pedestrian detecting system |
| DE102009009047A1 (en) * | 2009-02-16 | 2010-08-19 | Daimler Ag | Method for object detection |
| US20100253489A1 (en) * | 2009-04-02 | 2010-10-07 | Gm Global Technology Operations, Inc. | Distortion and perspective correction of vector projection display |
| CN202463844U (en) * | 2012-01-18 | 2012-10-03 | 安徽理工大学 | Pedestrian detection alarm system of mining electric locomotive |
| CN202873034U (en) * | 2012-11-04 | 2013-04-10 | 黑龙江科技学院 | Vehicle horn volume control system based on pedestrian detection |
| CN103455144A (en) * | 2013-08-22 | 2013-12-18 | 深圳先进技术研究院 | Vehicle-mounted man-machine interaction system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828299A (en) * | 2016-12-27 | 2017-06-13 | 柳州市金岭汽车配件厂 | The control method of car horn |
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Application publication date: 20150624 |