CN104063991B - One kind is got off safety reminding device and its detection method - Google Patents
One kind is got off safety reminding device and its detection method Download PDFInfo
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- CN104063991B CN104063991B CN201410302324.0A CN201410302324A CN104063991B CN 104063991 B CN104063991 B CN 104063991B CN 201410302324 A CN201410302324 A CN 201410302324A CN 104063991 B CN104063991 B CN 104063991B
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- car door
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Abstract
Got off safety reminding device and its detection method the invention provides one kind, belong to automobile technical field.It solves the problems, such as that prior art gets off foothold for occupant cannot warning in advance with the presence or absence of potential safety hazard.Originally safety reminding device of getting off includes the detector below car door, control unit, data memory module and buzzer, detector is connected to the signal input part of control unit, buzzer is connected to the signal output part of control unit, data memory module connection control unit.This method includes：First, starting step；2nd, pavement behavior judges step；3rd, alarming step；4th, return to step is terminated.Originally get off safety reminding device and its detection method can exclude the potential safety hazard of foothold when occupant gets off, raising is got off security.
Description
Technical field
The invention belongs to automobile technical field, be related to a kind of alarm, more particularly to one kind get off safety reminding device and
Its detection method.
Background technology
Today's society, automobile has become the walking-replacing tool of mankind's trip, and substantial amounts of application substantially increases the work of the mankind
Make and life efficiency, but also occur in that many problems annoying people simultaneously, wherein when getting off, because notice not enough collects
In, cause hollow of stepping on, or stone, sewer is even fallen into, cause hazard to person.
Someone devises a kind of device that can reduce dangerous situation of getting off, such as China Patent Publication No. CN1128600, Shen
Day a kind of device for confirmation of rear view of vehicle please be disclosed for the patent application case of CN95190408.6, after the invention has to vehicle
Fang Jinhang shooting camera head, for show by above-mentioned camera head take the photograph image display device, detect be arranged on it is above-mentioned
The detection means of the opening action of the car door on vehicle and when above-mentioned detection device detects the opening action time control of above-mentioned car door
Make above-mentioned display device and show the control device that image is taken the photograph by above-mentioned camera head.Its concrete scheme is by CCD small-sized image pickups
Machine is arranged on the car door end of vehicle, and car door rear is imaged with it, and shows on a monitor.In addition, being additionally provided with
For according to staff to door handle close to and door-lock-release and detect in advance vehicle car door opening act car door opening examine
Mechanism is surveyed, when the opening action of car door is detected, just video camera, camera angle controlling organization is connected with monitor, opened
Beginning carries out camera photography, camera angle control and monitor and shows.Camera angle controlling organization controls video camera to anti-
Direction only rotates the angle that car door is opened, and the direction of video camera is kept certain.So, the feelings for representing car door rear just can be used
Safety verification is carried out when the display of condition contributes to occupant to get off, and needed for carrying out safety verification when occupant can be made to see and get off
The information wanted.
Such scheme solves the danger from rear view of vehicle and side when occupant gets off, but for the foothold of occupant
But cannot be protected, this is also problem demanding prompt solution in current automotive engineering.
The content of the invention
The purpose of the present invention is directed to existing technology and there is above mentioned problem, it is proposed that one kind get off safety reminding device and
Its detection method, the apparatus and method can get off when occupant gets off and send warning reminding under a road surface unsafe condition.
The purpose of the present invention can be realized by following technical proposal：One kind is got off safety reminding device, it is characterised in that
Including installed in car door lower section and for gathering the detector of car door lower section pavement image data, for receiving the detector hair
The view data sent judges road surface with the presence or absence of potential safety hazard and be output alarm signal when there is potential safety hazard in judged result
Control unit, the data memory module for storing safety pavement image pattern and for reception control unit send report
The buzzer that alert signal is alarmed, the detector is connected to the signal input part of control unit, and the buzzer is connected to
The signal output part of control unit, data memory module connection control unit.
The main scheme of the present invention be to provide it is a kind of when being got off for occupant to stopping over what whether position was pointed out safely
Device, car door lower section ground image data when gathering car door opening by the detector below car door, detector collection
View data is sent to control unit, and control unit carries out feature extraction and deposited with data are pre-stored in the view data for receiving
Safety pavement image pattern in storage module is compared, if being judged as that car door lower section road surface is dangerous according to comparison result,
The ground that warning reminding occupant notes stopping over then is sent by buzzer, reduction is injured unexpectedly.
Used as a kind of preferred scheme, the safety reminding device of getting off also includes that the touching set on door handle in the car is passed
Sensor, the touch sensor connects the signal input part of control unit, and the touch sensor is sensed using capacitive pressure
Device.The touching signal on in-car door handle is detected by capacitance pressure transducer, to judge whether occupant needs to open under car door
Car, so as to avoid someone from causing detector insignificant detection when car door is opened from outside car.
Used as a kind of preferred scheme, the detector is pinhole cameras, and the pinhole cameras are opened in car door opening
Begin to be rotated with car door and the ground based scanning formula below car door is imaged.Using pinhole cameras because its small volume, is easy to arrangement,
When car door opening, camera moves the scanning shoot scope to form a sector with car door, expands the shooting area of camera
Between, it is ensured that captured interval is completely covered foothold when occupant gets off.
Used as a kind of preferred scheme, the detector is radar, and the radar starts under scanning car door in car door opening
Square ground.When using radar as detector, it is possible to reduce influence of the surrounding light environment to detector, and radar low coverage
It is more accurate from scanning.
Used as a kind of preferred scheme, described control unit includes ECU signal processors and its peripheral circuit.At ECU signals
Reason device is onboard commonly used, and low cost, technology be more ripe and small volume.
Used as a kind of preferred scheme, described control unit accesses the control major loop of automobile, and control unit is by automobile
Control major loop is connected with arrangements for automotive doors detection means.In order that safety reminding device of getting off of the invention can be opened in occupant
The moment automatic of car door, and without manually opened, control unit is directly accessed the control major loop of automobile, when automobile
Car door detection means detects car door opening, and the control major loop of automobile sends this information to control unit of the invention,
Control unit starts to receive the view data that detector sends, safety reminding device startup of getting off of the invention.Such design,
Make the present invention without with regard to energy automatic, forgetting to turn on peace of getting off of the invention when effectively preventing occupant from getting off because of carelessness manually
Full alarm set, is at closed mode and does not work, and considerably increases convenience of the invention and reliability.
One kind is got off safety detection method, it is characterised in that the method is comprised the following steps：
The first step, detector starts when detecting car door opening；
Second step, pavement behavior judges：Detector collection pavement image Data Concurrent gives control unit, and control unit will
The view data of detector collection carries out aspect ratio pair with the safe ground image pattern that prestores, if determining flooring-safe after contrast
Then detection of end, is judged as being not suitable for getting off herein if determining that ground is dangerous after contrast；
3rd step, when ground safety detection result is judged as being not suitable for getting off herein, buzzer sends alarm；
4th step, detects closing of the door, then return to original state.
As a kind of preferred scheme, a kind of method of automobile inside door handle touching detection is increased, comprised the following steps：
Second step, in-car door handle touching detection：If touch sensor does not detect touching signal, detection is closed
Device, if touch sensor detects touching signal, is judged as having occupant to get off, and starts pavement behavior and judges：Detector
Collection pavement image Data Concurrent gives control unit, the view data that control unit gathers detector and the safe ground that prestores
Image pattern carries out aspect ratio pair, the detection of end if flooring-safe is determined after contrast, if determining that ground is uneasy after contrast
It is complete then be judged as being not suitable for getting off herein.Touching signal on in-car door handle is detected by touch sensor, can avoid by
In occupant by outward into the car when open car door caused by insignificant detection.
As a kind of preferred scheme, in order to ensure the reasonability of ground image data, following steps are made with optimization：
In second step, the radius of detector collection ground image is 50-80 centimetres.IMAQ radius is set to 50-80
Centimetre, it is ensured that occupant get off after position of stopping over security.
Used as a kind of preferred scheme, the radius of detector collection ground image is 70 centimetres.Under normal circumstances, with 70 centimetres
As collection radius can cover substantially occupant under various circumstances car when foothold, therefore, it is possible to ensure that occupant can be safe
Get off.
Compared with prior art, the present invention has advantages below：
(1), when the dangerous hidden danger in position of getting off is detected, being capable of occupant that effectively warning reminding will get off；
(2), detected by the touching on in-car door handle, occupant into wrong report during automobile opening car door can be avoided
It is alert；
(3), contrasted by picture images, improve identification accurate rate, reduce rate of false alarm；
(4), automatic during car door opening, without control manually, increased convenience and reliability.
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of safety reminding device of getting off of the invention.
Fig. 2 is the workflow diagram of safety detection method of getting off of the invention.
In figure, 1, detector；2nd, touch sensor；3rd, control unit；31st, ECU signal processors；32nd, the first amplifier；
33rd, the second amplifier；34th, A/D converter；35th, D/A converter；36th, power amplifier；4th, data memory module；5th, buzzing
Device；6th, major loop is controlled；7th, car door detection means.
Specific embodiment
The following is specific embodiment of the invention and with reference to accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in Figure 1, safety reminding device of originally getting off includes detector 1, touch sensor 2, control unit 3 and buzzing
Device 5.Detector 1 and touch sensor 2 are connected with the signal input part of control unit 3, the signal of buzzer 5 and control unit 3
Output end is connected.Safety reminding device of getting off also includes a data memory module 4, the connection control unit of data memory module 4
3, and with the exchange data of control unit 3.Control unit 3 accesses the control major loop 6 of automobile, and control unit 3 is led back by control
Road 6 and car door detection means 7 are connected.When car door detection means 7 detects car door opening, major loop 6 is controlled by this information
Control unit 3 is sent to, control unit 3 starts to receive the signal of self-detector 1 and touch sensor 2, safety of originally getting off is carried
Device of waking up starts.
Specifically, control unit 3 includes ECU signal processors 31 and its peripheral circuit, and peripheral circuit includes some letters
Number amplifier and digital analog converter.Detector 1 uses pinhole cameras, its lower section for being arranged on car door, in car door opening
When start with car door rotate to below car door ground based scanning formula shoot.Pinhole cameras connect the first signal of control unit 3
On amplifier 32, the signal transmission after amplification is analyzed and processed by the first signal amplifier 32 to ECU signal processors 31.Due to
The view data of pinhole cameras collection has been data signal, therefore without being changed by A/D converter.Touch sensor
2 use capacitance pressure transducer, low cost of manufacture and sensitivity is moderate, and false triggering probability is small.Touch sensor 2 is arranged on car
On inside door handle, the trigger signal caused when being got off and opened the door by occupant for detecting, and it is converted into analog signal.Touching is passed
Sensor 2 connects the secondary signal amplifier 33 of control unit 3, the number that secondary signal amplifier 33 collects touch sensor 2
The other electric signal of millivolt level is amplified to three ten-day period of hot season rank, it is converted to data signal by A/D converter 34 and is sent to ECU
Signal processor 31 is analyzed and processed.Data memory module 4 uses Flash memory chip, reads and writes fast and reliable, long service life
And power consumption is low, data memory module 4 connects ECU signal processors 31 by data/address bus, and data memory module 4 is used to store
Safety pavement image pattern is called for ECU signal processors 31.
ECU signal processors 31 judge whether occupant gets off enabling in execution according to the signal received from touch sensor 2
Operation, when it is drive-through operation that the judged result of ECU signal processors 31 is occupant, the view data for receiving the transmission of detector 1 is entered
Row initial analysis is processed and extracts feature, then calls the safe ground image pattern in data memory module 4 to carry out aspect ratio
It is right, so as to judge that the ground below current car door whether there is potential safety hazard.If the image and the image pattern for prestoring of collection
More it coincide, then judges current car door lower section flooring-safe, suitable occupant gets off, if the image and the image sample for prestoring of collection
There is bigger difference in this, then judge that single car door lower section ground of signing is dangerous, is not suitable for occupant and gets off.
When ECU signal processors 31 judge that ground is dangerous below current car door, it is necessary to passing through buzzer 5 sends alarm
Sound.As shown in figure 1, the output end of ECU signal processors 31 is connected with a D/A converter 35, D/A converter 35 is by alarm
Data signal is converted into analog signal, is conveyed to buzzer 5 after then amplifying through power amplifier 36, and sent by buzzer 5
Alarm.
In addition to the pinhole cameras employed in the present embodiment, detector 1 can also use radar, radar to be opened in car door
Start scanning car door lower section ground when opening.When using radar as detector 1, it is possible to reduce surrounding light environment is tied to detection
The influence of fruit, and radar short range scanning is more accurate.In addition, buzzer 5 can also be carried using the voice of more hommization
Show that module replaces, although cost is improved, but its prompting effect is more obvious.
One kind get off safety detection method, its workflow as shown in Fig. 2 when car door opening safety of getting off of the invention
Alarm set starts, and detector starts, touch sensor starts.Detector starts collection car door lower section ground image data.Together
When, whether the in-car door handle of touch sensor detection is touched by occupant, if not detecting touching signal, judges that car door is
People outside by car opens, therefore without continuing to detect, simultaneously closes off detector；If touch sensor detects in-car door handle
Touched by occupant, then judge there is the occupant to get off, started pavement behavior and judge：Detector collection pavement image Data Concurrent is given
Control unit, the view data that control unit gathers detector carries out aspect ratio pair with the safe ground image pattern that prestores, such as
Fruit determines flooring-safe then detection of end after contrasting, be judged as being not suitable for if determining that ground is dangerous after contrast herein under
Car.Touching signal on in-car door handle is detected by touch sensor, can avoid due to occupant by outward into the car when beat
Insignificant detection caused by door opening.When ground safety detection result is judged as being not suitable for getting off herein, buzzer sends
Alarm；When closing of the door is detected, then original state is returned.
In safety detection method of getting off of the invention, the radius of detector collection ground image is 50-80 centimetres.Will figure
As collection radius be set to 50-80 centimetres, it is ensured that occupant get off after position of stopping over security, in actually used process
In, IMAQ radius can be specifically configured to 70 centimetres, due to general occupant, when getting off, both feet close up substantially, therefore 70
Centimetre as radius circle or sector region disclosure satisfy that the standing room demand that occupant gets off substantially, ensure that occupant
Safe getting-off.
Specific embodiment described herein is only to the spiritual explanation for example of the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from spirit of the invention or surmount scope defined in appended claims.
Claims (7)
1. one kind is got off safety reminding device, it is characterised in that including installed in car door lower section and for gathering car door lower section road
The detector of face view data, the touch sensor set on door handle in the car, the figure for receiving the detector transmission
As data judge road surface with the presence or absence of potential safety hazard and in the control that judged result is output alarm signal when there is potential safety hazard
Unit, the data memory module for storing safety pavement image pattern and the alarm signal sent for reception control unit
The buzzer alarmed, the detector is connected to the signal input part of control unit；The detector is pinhole cameras,
The pinhole cameras start to be rotated to the ground based scanning formula shooting below car door with car door in car door opening；Or the inspection
Survey device is radar, and the radar starts ground below scanning car door in car door opening, and the touch sensor connection control is single
The signal input part of unit, the buzzer is connected to the signal output part of control unit, the data memory module connection control
Unit, control unit includes ECU signal processors, and the ECU signal processors are sentenced according to the signal received from touch sensor
Whether disconnected occupant gets off opening door operation in execution, when it is drive-through operation that ECU signal processors judged result is occupant, receives inspection
The view data that survey device sends carries out initial analysis and processes and extract feature, then calls the safe ground in data memory module
Image pattern carries out aspect ratio pair, so as to judge that the ground below current car door whether there is potential safety hazard；In ECU signal transactings
When device judges that current car door lower section ground is dangerous, alarm is sent by buzzer.
2. one kind according to claim 1 is got off safety reminding device, it is characterised in that the touch sensor is using electricity
Appearance formula pressure sensor.
3. one kind according to claim 1 is got off safety reminding device, it is characterised in that described control unit also includes
The peripheral circuit of ECU signal processors.
4. the one kind according to claim 1 or 2 or 3 is got off safety reminding device, it is characterised in that described control unit connects
Enter the control major loop of automobile, control unit is connected by the control major loop of automobile with arrangements for automotive doors detection means.
5. one kind is got off safety detection method, it is characterised in that the method is comprised the following steps：
The first step, detector starts when detecting car door opening；
Second step, in-car door handle touching detection：If touch sensor does not detect touching signal, detector is closed,
If touch sensor detects touching signal, it is judged as having occupant to get off, starts pavement behavior and judge；
Pavement behavior judges：Detector collection pavement image Data Concurrent gives control unit, and control unit gathers detector
View data carry out aspect ratio pair with the safe ground image pattern that prestores, if contrast after determine flooring-safe if terminate inspection
Survey, be judged as being not suitable for getting off herein if determining that ground is dangerous after contrast；
3rd step, when ground safety detection result is judged as being not suitable for getting off herein, buzzer sends alarm；
4th step, detects closing of the door, then return to original state.
6. one kind according to claim 5 is got off safety detection method, it is characterised in that in second step, detector collection
It is 50-80 centimetres that the radius of ground image is interval.
7. one kind according to claim 6 is got off safety detection method, it is characterised in that the detector gathers surface map
The radius of picture is 70 centimetres.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410302324.0A CN104063991B (en) | 2014-06-28 | 2014-06-28 | One kind is got off safety reminding device and its detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410302324.0A CN104063991B (en) | 2014-06-28 | 2014-06-28 | One kind is got off safety reminding device and its detection method |
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| CN104063991A CN104063991A (en) | 2014-09-24 |
| CN104063991B true CN104063991B (en) | 2017-06-30 |
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| CN201410302324.0A Active CN104063991B (en) | 2014-06-28 | 2014-06-28 | One kind is got off safety reminding device and its detection method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107089190A (en) * | 2016-02-18 | 2017-08-25 | 奥迪股份公司 | For warning system, method for warming and the corresponding vehicle for aiding in user to get off |
| CN107650792A (en) * | 2017-10-09 | 2018-02-02 | 北京汽车股份有限公司 | Opening door of vehicle based reminding method, system and there is its vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11165585A (en) * | 1997-12-05 | 1999-06-22 | Toyoda Gosei Co Ltd | Out-vehicle lighting system |
| CN100347000C (en) * | 2004-07-15 | 2007-11-07 | 李世雄 | Monitoring device capable of ensuring safe opening of car door |
| JP4973564B2 (en) * | 2008-03-27 | 2012-07-11 | 三菱自動車工業株式会社 | Vehicle periphery display device |
| JP5360491B2 (en) * | 2009-11-13 | 2013-12-04 | アイシン精機株式会社 | Multifunctional camera system |
| JP5397697B2 (en) * | 2010-03-12 | 2014-01-22 | アイシン精機株式会社 | Image control device |
| CN102390330B (en) * | 2011-08-31 | 2013-12-25 | 浙江吉利汽车研究院有限公司 | Auxiliary getting-off monitoring device and monitoring method thereof |
| KR101361179B1 (en) * | 2012-05-16 | 2014-02-10 | 주식회사 미동전자통신 | a safety system for car |
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| CB03 | Change of inventor or designer information |
Inventor after: Feng Qingfeng Inventor after: Han Miaolong Inventor after: Men Yongxin Inventor after: Chen Yong Inventor after: Wu Chengming Inventor before: Han Miaolong Inventor before: Men Yongxin Inventor before: Chen Yong Inventor before: Wu Chengming Inventor before: Feng Qingfeng |
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Effective date of registration: 20170602 Address after: 315336, No. two, No. 818, Binhai New District, Cixi, Zhejiang, Ningbo, Hangzhou Applicant after: Ningbo Geely Automobile Research AND Development Co., Ltd. Applicant after: Zhejiang Geely Holding Group Co., Ltd. Address before: 310051 Jiangling Road, Hangzhou, Zhejiang, No. 1760, No. Applicant before: Zhejiang Geely Holding Group Co., Ltd. Applicant before: Zhejiang Geely Automobile Research Institute Co., Ltd. |
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