CN105927088B - A kind of power window clamp prevention apparatus and system - Google Patents
A kind of power window clamp prevention apparatus and system Download PDFInfo
- Publication number
- CN105927088B CN105927088B CN201610438209.5A CN201610438209A CN105927088B CN 105927088 B CN105927088 B CN 105927088B CN 201610438209 A CN201610438209 A CN 201610438209A CN 105927088 B CN105927088 B CN 105927088B
- Authority
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- China
- Prior art keywords
- image
- clamp prevention
- power window
- vehicle window
- pinch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
- Window Of Vehicle (AREA)
Abstract
The invention discloses a kind of power window clamp prevention apparatus and system, which includes：The image acquisition device of image for collecting vehicle window frame region；Image processor being connected with described image collector, being dealt with for the image to acquisition and extract objects in images characteristic information；Central processing unit being connected with described image processor, for sending out instruction when the default edge curve co-insides of the boundary curve and window frame that judge objects in images.Compared with prior art, power window clamp prevention apparatus and system of the present invention, method based on image recognition carries out anti-pinch judgement and control, more intuitively more tally with the actual situation, and it is small that anti-pinch judges and control that process is influenced by extraneous factors such as vehicle and use environments, anti-pinch effect stability, reliability higher.
Description
Technical field
The present invention relates to technical field of vehicle control, more particularly to a kind of power window clamp prevention apparatus and system.
Background technology
With the development of automotive electronic technology, more and more electronic security(ELSEC) functional products are applied in automobile.It is existing
In technology, in terms of the anti-pinch protection of power windows, usual anti-clamping protective device of the vehicle installation with Hall sensor is former
Reason is specially：When motor driving vehicle window rises, the magnetic force amount of motor is stable or variable quantity very little；Work as vehicle window
On when thering is object to block, the magnetic force amount of motor can vary widely, and Hall sensor can capture the magnetic force amount of motor at this time
Variation, anti-clamping protective device change according to magnetic force amount compared with preset anti-pinch force threshold, are sent out to motor and continue to rise, stop
The instructions such as rising or motor reversal decline, achieve the effect that anti-pinch protection.
But above-mentioned anti-clamping protective device has the following problems：
1, the prior art is converted into the variation of vehicle window ascendant trend and resistance by the variation for capturing motor magnetic force amount.
The process of this conversion needs to introduce complicated software algorithm, while also inevitably introducing and calculating error or measurement error,
Therefore the effect of anti-pinch protection may be influenced.
2, the prior art is general only sets the threshold value of anti-grip force in the new car stage, however as the passage of time,
Vehicle each parts situations such as there are aging, abrasion, displacement, deformations, vehicle use environment may also change, and anti-grip force is set
Threshold value is determined without corresponding change is done, at this point, anti-clamping protective device may judge the anti-pinch resistance under actual conditions by accident, very
To possible anti-pinch protection failure.
3, the prior art carries out anti-pinch protection using the method for setting anti-pinch force threshold, in some existing anti-pinch standards
Or in method, threshold value generally only sets one.And in a practical situation, respectively there is not the reaction of chucking power at each position of human body
Together, different people is also different for the reaction of chucking power.Therefore setting single anti-pinch force threshold may be to different
It is artificial at different influences, and then influence actual anti-pinch effect.
Invention content
In consideration of it, the present invention provides a kind of power window clamp prevention apparatus and system, the method based on image recognition is prevented
Folder judges and control, and compared with prior art, anti-pinch control more intuitively more tallies with the actual situation, and anti-pinch effect is more stable, reliably
Property higher.
To achieve the above object, the present invention provides the following technical solutions：
A kind of power window clamp prevention device, including：
The image acquisition device of image for collecting vehicle window frame region；
It is being connected with described image collector, dealt with for the image to acquisition and extract objects in images characteristic information
Image processor；
Default edge being connected with described image processor, for working as the boundary curve and window frame that judge objects in images
The central processing unit of instruction is sent out when curve co-insides.
Optionally, it is connected with the central processing unit, for that will instruct sends or receive the logical of external command
Believe module.
Optionally, further include the memory being connected with described image processor, the central processing unit.
Optionally, described image collector includes camera and the imaging sensor for imaging.
Optionally, further include for the infrared light supply to window frame region light filling.
Optionally, the camera is provided with polaroid.
A kind of power window clamp prevention system, including：
Power window clamp prevention device as described above；
Vehicle window control module being connected with the power window clamp prevention device, according to instruction control vehicle window action.
Optionally, the power window clamp prevention device passes through interior local interconnect network phase with the vehicle window control module
Even.
Optionally, the power window clamp prevention device is arranged right over vehicle window.
Optionally, the observation angle of the image acquisition device of the power window clamp prevention device be 160 degree -180 degree, observation away from
From less than or equal to 1 meter.
Power window clamp prevention apparatus and system provided by the present invention, power windows it can be seen from above-mentioned technical proposal
Anti-pinch device includes image acquisition device, image processor and central processing unit, and image acquisition device is used for collecting vehicle window frame region
Image, image processor is for dealing with the image of acquisition and extract the object features information in image, central processing unit
Instruction is sent out in the default edge curve co-insides of the boundary curve and window frame that judge objects in images, stops closing to control vehicle window
It closes.The default edge curve of the window frame refers to the window frame edge that the vehicle window in vehicle window closing process is finally closed therewith.If acquisition
There are object in the image in vehicle window window frame region, and the default edge curve co-insides of the boundary curve of object and window frame, show
If vehicle window continues to close, the object in window frame region will be clamped by vehicle window and window frame edge.Therefore, described to prevent clamping
The default edge curve co-insides if it find that the boundary curve of object and window frame are set in the image of acquisition, then control power windows
Phase down, and then realize the effect of anti-pinch protection.
Compared with prior art, power window clamp prevention apparatus and system of the present invention, the method based on image recognition are prevented
Folder judges and control, more intuitively more tallies with the actual situation, and influenced small, anti-pinch by extraneous factors such as vehicle and use environments
Effect is more stable, reliability higher.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of schematic diagram of power window clamp prevention device provided in an embodiment of the present invention；
Fig. 2 is the image schematic diagram in the anti-pinching car window region of acquisition；
Fig. 3 is a kind of schematic diagram for power window clamp prevention device that further embodiment of this invention provides；
Fig. 4 is a kind of schematic diagram of power window clamp prevention system provided in an embodiment of the present invention.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution in the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without making creative work, should all belong to protection of the present invention
Range.
Referring to FIG. 1, being a kind of schematic diagram of power window clamp prevention device provided in an embodiment of the present invention, the power windows
Anti-pinch device includes：
The image acquisition device 100 of image for collecting vehicle window frame region；
It is being connected with described image collector 100, dealt with for the image to acquisition and extract objects in images feature
The image processor 101 of information；
Boundary curve and window frame being connected with described image processor 101, for that ought judge objects in images are preset
The central processing unit 102 of instruction is sent out when edge curve co-insides.
The power window clamp prevention device provided in an embodiment of the present invention it can be seen from the above, including image acquisition device
100, image processor 101 and central processing unit 102, wherein image acquisition device 100 is used for the figure in collecting vehicle window frame region
Picture, image processor 101 is for dealing with the image of acquisition and extracting the object features information in image, central processing unit
102 send out instruction in the default edge curve co-insides of the boundary curve and window frame that judge objects in images, are stopped with controlling vehicle window
Only close.
The default edge curve of window frame refers to the window frame edge that the vehicle window in vehicle window closing process is finally closed therewith.If acquisition
Vehicle window window frame region image in there are object, and default edge curve co-insides of the boundary curve of object and window frame, table
If bright vehicle window continues to close, the object in window frame region will be clamped by vehicle window and window frame edge.Therefore, the anti-pinch
Device is in the image of acquisition if it find that the default edge curve co-insides of the boundary curve of object and window frame, then control electric vehicle
Window phase down, and then realize the effect of anti-pinch protection.
Compared with prior art, power window clamp prevention device of the present invention, the method based on image recognition carry out anti-pinch judgement
And control, it more intuitively more tallies with the actual situation, and anti-pinch judges and control process is by extraneous factors such as vehicle and use environments
Influence it is small, anti-pinch effect stability, reliability higher.
The principle for being carried out anti-pinch protection based on image-recognizing method to power window clamp prevention device of the present invention below is carried out in detail
It describes in detail bright.
Referring to FIG. 2, the image schematic diagram in the anti-pinching car window region for acquisition, the image acquisition device acquisition of the anti-pinch device
Image be made of the pixel of one group of m row × n row, such as grid in figure, (A), (B), (C), (D) are vehicle window window frame region in figure
Four feature locations corresponding four pixel positions on the image, region (ABCD) corresponds to vehicle window window frame in image
Inner region.E is object, and OE is the boundary curve of object, it is assumed that the window frame edge that vehicle window is finally closed in vehicle window closing corresponds to
For edge curve (AB), then in the picture, working as appearance and showing when the boundary curve OE of object is overlapped with edge curve (AB)
Object in vehicle window closing in region has arrived most edge, there is the risk clamped by vehicle window, then control vehicle window stops in time at this time
It closes, stops vehicle window and rise or execute lowering action, object is prevented to be gripped to.
Preferably, an anti-clip area can be set in vehicle window window frame region in image procossing to reduce image recognition region
Domain, which corresponds to one section of region before vehicle window is closed with the window frame side being finally closed, such as can set anti-pinch region
The region within the scope of the pre-determined distance of window frame side being finally closed for distance, within the scope of 0.2 meter of distance.In this case, Fig. 2
Middle region (ABCD) corresponds to the anti-pinch region, is carrying out image recognition and when judging, can in image anti-pinch region into
Row, when there are object, and the boundary curve of object and default edge curve co-insides then judge to exist and be pressed from both sides in image anti-pinch region
Risk, then control vehicle window action in time.This method can improve image processing speed, improve monitoring efficiency.
Specifically, in a specific embodiment, described image collector 100 includes camera and the image for imaging
Sensor.Wherein, camera includes the optical elements such as lens, the light for receiving extraneous entrance, by adjusting focal length to protect
Card has clearly imaging effect.
Imaging sensor is a photosensitive electronic component being made of the pixel of one group of m row × n row, corresponding imaging shape
The image that the pixel of Cheng Youyi groups m rows × n row is constituted.Optionally, COMS imaging sensors can be used in described image sensor,
Or ccd image sensor.
Digital Image Processor can be used in described image processor 101, and the picture signal that can transmit imaging sensor turns
Digital signal is turned to, and further carries out the operations such as image procossing, image characteristics extraction.
Referring to FIG. 3, in a kind of specific embodiment of the present invention, which further includes and the central processing unit
102 communication modules 103 being connected, for that will instruct transmission or receive external command.It is carried out with extraneous by communication module 103
Communication.
The anti-pinch device further includes the memory being connected with described image processor 101, the central processing unit 102
104.Central processing unit is for the operations such as anti-pinch judgement, each component controls, data call and budget, instruction processing, by memory
The data such as 104 storage running data, instruction, code, algorithm.
Preferably, in order to prevent compared with insufficient light under dark situation, and image recognition and pinch resistant functionality are influenced, the electric vehicle
Window anti-pinch device can be also arranged for the infrared light supply to window frame region light filling, and one or more infrared light supplies can be arranged, such as red
Outer LED light source.In this way, when vehicle window observation area is dark, by infrared light supply light filling, guarantee collects clearly image, protects
Anti-pinch protection function is demonstrate,proved.Optionally, the other light sources such as tengsten lamp can also be used in supplementary lighting sources.
Preferably, the interior outer reflective influence to Image Acquisition generated in order to prevent, the present embodiment power window clamp prevention
Also polaroid can be arranged in camera in device, and polaroid is installed before camera, avoids reflective interference image acquisition device outside car
Acquire image.Specifically, polaroid can be arranged in image acquisition device front, may also be arranged on camera and imaging sensor it
Between.
Therefore, power window clamp prevention device of the present invention carries out anti-pinch control using the method for image recognition.By identifying electricity
The changing features of image in dynamic anti-pinching car window region, judge whether have by folder wind with the presence or absence of object and object in anti-pinch region
Danger, and then vehicle window phase down or decline are controlled in time, achieve the effect that prevent object from being pressed from both sides.Compared with prior art, originally
Invention has the following advantages that：
1, it is controlled using the anti-pinch of image conversion, processing procedure is simple, the software algorithm of no complexity, and anti-pinch controls process and people
Body perception relatively, more tallies with the actual situation.
2, anti-pinch protection effect will not be influenced by vehicle component aging, abrasion, displacement, deformation, use environment change etc.,
Anti-pinch effect stability.
3, anti-pinch judgement is carried out using the method for acquisition image.It is different from existing scheme and uses conversion motor magnetic force quantitative change
The method of change, this programme is intuitive, False Rate is relatively low, and reliability is high.
Correspondingly, the embodiment of the present invention also provides a kind of power window clamp prevention system, referring to FIG. 4, the power windows
Anti-clipping system includes：
Power window clamp prevention device 1 as described above；
Vehicle window control module 2 being connected with the power window clamp prevention device 1, according to instruction control vehicle window action.
Wherein, vehicle window control module 2 is connected with vehicle window, specifically may include driving motor and the biography for driving vehicle window to act
Dynamic device, for controlling vehicle window action.
Power window clamp prevention device 1 identifies image in anti-pinching car window region by the image in collecting vehicle window frame region
Changing features then send out instruction in time when judging to have by folder risk there are object and object in anti-pinch region.Vehicle window controls mould
For block 2 according to instruction control vehicle window action, control vehicle window stops rising or reversion declines, and prevents object to be gripped to, and then realize
The function of anti-pinch protection.
In the present embodiment, the power window clamp prevention device 1 passes through interior local internet with the vehicle window control module 2
Network 3 is connected, and can specifically be communicated by CAN bus or LIN buses.
Specifically, the power window clamp prevention device 1 may be provided at right over vehicle window, such as right over vehicle window in roof,
It is capable of the image in real-time collecting vehicle window frame region.Preferably, the observation of the image acquisition device of the power window clamp prevention device 1
Angle is set as 160 degree -180 degree, and observed range is less than or equal to 1 meter, and guarantee collects more comprehensive, more visible window frame region
Image.In addition, in order to enhance anti-pinch detection result, user can also be according to demand in the position up and down of electric vehicle window of vehicle
The anti-pinch device is installed respectively.
In user's in-use automotive, opening vehicle window or closing vehicle window can be controlled by operating car window switch；It is closed in power windows
During closing, the real-time collecting window frame region image of power window clamp prevention device energy, and judge that vehicle window is anti-by image recognition
Clip area domain whether there is with the presence or absence of object and object by folder risk, if vehicle window window frame region does not have object power windows after
It is continuous to rise, it completes to close；If having the risk pressed from both sides there are object and object, controls power windows and stop rising or executing decline
Action, prevents object to be gripped to, achievees the effect that anti-pinch protection.Power window clamp prevention apparatus and system of the present invention is simple in structure,
Performance is stablized, realisation preferable.
A kind of power window clamp prevention apparatus and system provided by the present invention is described in detail above.It answers herein
With specific case, principle and implementation of the present invention are described, and the explanation of above example is only intended to help to manage
Solve the method and its core concept of the present invention.It should be pointed out that for those skilled in the art, not departing from
, can be with several improvements and modifications are made to the present invention under the premise of the principle of the invention, these improvement and modification also fall into this hair
In bright scope of the claims.
Claims (8)
1. a kind of power window clamp prevention device, which is characterized in that including：
The image acquisition device of image for collecting vehicle window frame region；
Figure being connected with described image collector, being dealt with for the image to acquisition and extract objects in images characteristic information
As processor；
Default edge curve being connected with described image processor, for working as the boundary curve and window frame that judge objects in images
The central processing unit of instruction is sent out when coincidence；
Described image collector includes camera and the imaging sensor for imaging；
Further include for the infrared light supply to window frame region light filling.
2. device as described in claim 1, which is characterized in that be connected with the central processing unit, be used to refer to
Enable the communication module for sending or receiving external command.
3. device as claimed in claim 2, which is characterized in that further include and described image processor, the central processing unit
Connected memory.
4. device as described in claim 1, which is characterized in that the camera is provided with polaroid.
5. a kind of power window clamp prevention system, which is characterized in that including：
Power window clamp prevention device according to any one of claims 1-4；
Vehicle window control module being connected with the power window clamp prevention device, according to instruction control vehicle window action.
6. system as claimed in claim 5, which is characterized in that the power window clamp prevention device and the vehicle window control module
It is connected by interior local interconnect network.
7. system as claimed in claim 5, which is characterized in that the power window clamp prevention device is arranged right over vehicle window.
8. system as claimed in claim 6, which is characterized in that the observation of the image acquisition device of the power window clamp prevention device
Angle is 160 degree -180 degree, and observed range is less than or equal to 1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438209.5A CN105927088B (en) | 2016-06-17 | 2016-06-17 | A kind of power window clamp prevention apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438209.5A CN105927088B (en) | 2016-06-17 | 2016-06-17 | A kind of power window clamp prevention apparatus and system |
Publications (2)
| Publication Number | Publication Date |
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| CN105927088A CN105927088A (en) | 2016-09-07 |
| CN105927088B true CN105927088B (en) | 2018-08-28 |
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| CN201610438209.5A Expired - Fee Related CN105927088B (en) | 2016-06-17 | 2016-06-17 | A kind of power window clamp prevention apparatus and system |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939751B (en) * | 2017-05-22 | 2018-03-13 | 罗普特（厦门）科技集团有限公司 | Intelligent automatic control method |
| CN106968544B (en) * | 2017-05-22 | 2018-03-02 | 安徽安旺门业股份有限公司 | Intelligent forms based on infrared distance measuring |
| CN107083897B (en) * | 2017-05-22 | 2018-03-02 | 蒙城信和汽车有限公司 | Power windows automatic closing system |
| CN107100477B (en) * | 2017-05-22 | 2018-03-20 | 安徽泓森物联网有限公司 | Intelligentized control method based on infrared distance measuring |
| CN108487818B (en) * | 2017-05-23 | 2020-05-29 | 台州市黄岩宗义模塑有限公司 | Safety window control platform |
| CN107975319A (en) * | 2017-12-05 | 2018-05-01 | 科世达（上海）管理有限公司 | Applied to the control method of power windows, device, equipment, system and medium |
| CN109296286B (en) * | 2018-09-18 | 2021-07-02 | 惠州拓邦电气技术有限公司 | Method, device and system for controlling operation of trackless electric door based on vision |
| CN111746235A (en) * | 2019-03-29 | 2020-10-09 | 上海擎感智能科技有限公司 | Vehicle window control system and method thereof |
| CN112177476A (en) * | 2019-07-04 | 2021-01-05 | 广州汽车集团股份有限公司 | Vehicle window control system and method and automobile |
| CN112145009B (en) * | 2020-09-29 | 2022-04-08 | 阿波罗智联(北京)科技有限公司 | Vehicle window lifting control method and device and system for controlling vehicle window lifting |
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| FR2845051B1 (en) * | 2002-09-26 | 2005-06-03 | Arvinmeritor Light Vehicle Sys | MULTI-FUNCTION OPTICAL DETECTION VEHICLE |
| FR2845165B1 (en) * | 2002-09-26 | 2004-12-24 | Arvinmeritor Light Vehicle Sys | OBSTACLE DETECTOR FOR A VEHICLE OPENING ELEMENT |
| JP2007186916A (en) * | 2006-01-13 | 2007-07-26 | Tokai Rika Co Ltd | Window image area detection device and power window device |
| JP2009074325A (en) * | 2007-09-24 | 2009-04-09 | Denso Corp | Power window device |
| KR102136399B1 (en) * | 2013-10-16 | 2020-07-21 | 현대모비스 주식회사 | Automatic lock system and method for windows using network communication |
| CN103953251A (en) * | 2013-12-09 | 2014-07-30 | 苏州市职业大学 | Electric vehicle electric electric vehicle window anti-pinch device based on cameras |
| CN104533222A (en) * | 2014-11-11 | 2015-04-22 | 无锡悟莘科技有限公司 | Intelligent anti-clamping control system of car window |
| CN104477107A (en) * | 2014-11-11 | 2015-04-01 | 无锡悟莘科技有限公司 | Pinch preventing control method for car window |
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2016
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Granted publication date: 20180828 |