CN105927088A - Anti-pinch device and anti-pinch system for power window - Google Patents
Anti-pinch device and anti-pinch system for power window Download PDFInfo
- Publication number
- CN105927088A CN105927088A CN201610438209.5A CN201610438209A CN105927088A CN 105927088 A CN105927088 A CN 105927088A CN 201610438209 A CN201610438209 A CN 201610438209A CN 105927088 A CN105927088 A CN 105927088A
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- China
- Prior art keywords
- image
- pinch
- window
- power window
- clamp prevention
- Prior art date
- 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
Abstract
The invention discloses an anti-pinch device and an anti-pinch system for a power window. The anti-pinch device comprises an image acquirer used for acquiring an image of a window frame area, an image processor connected with the image acquirer, and used for processing the acquired image and extracting object characteristic information in the image, and a central processor connected with the image processor, and used for sending an instruction while judging that the edge curve of an object in the image is superposed with a preset edge curve of a window frame. Compared with the prior art, according to the anti-pinch device and the anti-pinch system for the power window, anti-pinch judgement and control are carried out on the basis of an image identification method, and the operation is more intuitive and much meets the actual condition; and moreover, the anti-pinch judgement and control process is less influenced by a vehicle, a use environment and other external factors, and a stable anti-pinch effect and higher reliability are achieved.
Description
Technical field
The present invention relates to technical field of vehicle control, particularly relate to a kind of power window clamp prevention dress
Put and system.
Background technology
Along with the development of automotive electronic technology, increasing electronic security(ELSEC) functional product is employed
In automobile.In prior art, in terms of the anti-pinch protection of power windows, usual vehicle is installed
With the anti-clamping protective device of Hall element, its principle is particularly as follows: work as motor and drive on vehicle window
When rising, the magnetic force amount of motor is stable, or variable quantity is the least；When there being thing on vehicle window
When body blocks, the magnetic force amount of motor can occur large change, and now Hall element can capture
The magnetic force amount change of motor, anti-clamping protective device is according to the change of magnetic force amount and the anti-grip force threshold preset
Value compares, and sends continuation to motor and rises, stops rising or degradation instruction under motor reversal, reaches
Effect to anti-pinch protection.
But, above-mentioned anti-clamping protective device there is problems in that
1, prior art by catch motor magnetic force amount change so that be converted into vehicle window rise become
Gesture and the change of resistance.The process of this conversion needs to introduce complicated software algorithm, the most also
Inevitably introduce and calculate error or measurement error, it is thus possible to affect the effect of anti-pinch protection.
2, prior art is general is only set the threshold value of anti-grip force in the new car stage, but
As time goes on, there is the situations such as aging, abrasion, displacement, deformation in each parts of vehicle,
Vehicle uses environment to be likely to change, and the setting threshold value of anti-grip force is without doing corresponding change,
Now, the anti-pinch resistance under practical situation it may happen that erroneous judgement, even may be used by anti-clamping protective device
Can lose efficacy by anti-pinch protection.
3, prior art uses and arranges the method for anti-grip force threshold value to carry out anti-pinch protection, existing
In some the anti-pinch standards having or method, threshold value the most only sets one.And in a practical situation,
Have nothing in common with each other for the reaction of chucking power in each position of human body, anti-for chucking power of different people
Should also be different.Therefore set single anti-grip force threshold value may different people be caused not
Same impact, and then the anti-pinch effect that impact is actual.
Summary of the invention
In consideration of it, the present invention provides a kind of power window clamp prevention Apparatus and system, know based on image
Method for distinguishing carries out anti-pinch judgement and control, and compared with prior art, anti-pinch controls more intuitively more
Tallying with the actual situation, anti-pinch effect is more stable, and reliability is higher.
For achieving the above object, the present invention provides following technical scheme:
A kind of power window clamp prevention device, including:
Image acquisition device for the image in collecting vehicle window frame region；
It is that be connected with described image acquisition device, for the image gathered is dealt with and extracts image
The image processor of middle object features information；
That be connected with described image processor, for when judge objects in images boundary curve and
The central processing unit of instruction is sent during the default edge curve co-insides of window frame.
Alternatively, that also include being connected with described central processing unit, for instruction being sent or connecing
Receive the communication module of external command.
Alternatively, the storage being connected with described image processor, described central processing unit is also included
Device.
Alternatively, described image acquisition device includes photographic head and the imageing sensor for imaging.
Alternatively, also include for the infrared light supply to window frame region light filling.
Alternatively, described photographic head is provided with polaroid.
A kind of power window clamp prevention system, including:
Power window clamp prevention device as above；
Vehicle window that be connected with described power window clamp prevention device, according to instruction control vehicle window action
Control module.
Alternatively, described power window clamp prevention device and described vehicle window control module are by office in car
Internet, territory is connected.
Alternatively, described power window clamp prevention device is arranged on directly over vehicle window.
Alternatively, the observation angle of the image acquisition device of described power window clamp prevention device is 160
Degree-180 degree, observed range is less than or equal to 1 meter.
By technique scheme it can be seen that power window clamp prevention device provided by the present invention and
System, power window clamp prevention device includes image acquisition device, image processor and central processing unit,
Image acquisition device is for the image in collecting vehicle window frame region, and image processor is for collection
Image deals with and extracts the object features information in image, and central processing unit is in judging image
Instruction is sent, to control vehicle window during the default edge curve co-insides of the boundary curve of object and window frame
Phase down.The default edge curve of this window frame refers to that vehicle window is last therewith in vehicle window closing process
The window frame edge of Guan Bi.If there is object, and thing in the image in the vehicle window window frame region gathered
The boundary curve of body and the default edge curve co-insides of window frame, if showing that vehicle window continues to close,
This object being positioned at window frame region will be clamped with window frame edge by vehicle window.Therefore, described anti-pinch
Device in the image gathered if it find that the default edge curve of boundary curve and the window frame of object
Overlap, 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, know based on image
Method for distinguishing carries out anti-pinch judgement and control, more intuitively more tallies with the actual situation, and by vehicle
And using the impact of the extraneous factors such as environment little, anti-pinch effect is more stable, and reliability is higher.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and
Easily insight, the accompanying drawing in describing below is only some embodiments of the present invention, for this area
From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to according to these
Accompanying drawing obtains other accompanying drawing.
The schematic diagram of a kind of power window clamp prevention device that Fig. 1 provides for the embodiment of the present invention；
Fig. 2 is the image schematic diagram in the anti-pinching car window region gathered；
The signal of a kind of power window clamp prevention device that Fig. 3 provides for further embodiment of this invention
Figure；
The schematic diagram of a kind of power window clamp prevention system that Fig. 4 provides for the embodiment of the present invention.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the present invention, below
The accompanying drawing in the embodiment of the present invention will be combined, the technical scheme in the embodiment of the present invention will be carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention,
Rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, all should belong to
The scope of protection of the invention.
Refer to Fig. 1, the showing of a kind of power window clamp prevention device provided for the embodiment of the present invention
Being intended to, this power window clamp prevention device includes:
Image acquisition device 100 for the image in collecting vehicle window frame region；
It is that be connected with described image acquisition device 100, for the image gathered is dealt with and extracts
The image processor 101 of objects in images characteristic information；
That be connected with described image processor 101, for when the edge song judging objects in images
The central processing unit 102 of instruction is sent during the default edge curve co-insides of line and window frame.
By foregoing it can be seen that the embodiment of the present invention provide power window clamp prevention device,
Including image acquisition device 100, image processor 101 and central processing unit 102, wherein, image
Harvester 100 is for the image in collecting vehicle window frame region, and image processor 101 is for adopting
The image of collection deals with and extracts the object features information in image, and central processing unit 102 is being sentenced
Instruction is sent during the default edge curve co-insides of the boundary curve of disconnected objects in images and window frame, with
Control vehicle window phase down.
The default edge curve of window frame refers to that in vehicle window closing process vehicle window closes the most therewith
Window frame edge.If there is object, and the limit of object in the image in the vehicle window window frame region gathered
Edge curve and the default edge curve co-insides of window frame, if showing that vehicle window continues to close, be positioned at window
This object in frame region will be clamped with window frame edge by vehicle window.Therefore, described anti-pinch device exists
If it find that the default edge curve co-insides of boundary curve and the window frame of object in the image gathered,
Then control power windows phase down, and then realize the effect of anti-pinch protection.
Compared with prior art, power window clamp prevention device of the present invention, side based on image recognition
Method carries out anti-pinch judgement and control, more intuitively more tallies with the actual situation, and anti-pinch judges and control
Process processed is by vehicle and uses the extraneous factors such as environment to be affected little, anti-pinch effect stability, reliably
Property is higher.
Below power window clamp prevention device of the present invention is carried out anti-pinch guarantor based on image-recognizing method
The principle protected is described in detail.
Refer to Fig. 2, the image schematic diagram in the anti-pinching car window region for gathering, this anti-pinch device
The image that gathers of image acquisition device be made up of, such as net in figure the pixel of one group of m row × n row
Lattice, (A), (B) in figure, (C), (D) are that four feature locations in vehicle window window frame region exist
Four pixel positions the most corresponding on image, in image, region (ABCD) corresponds to car
Window frame inner region.E is object, and OE is the boundary curve of object, it is assumed that in vehicle window is closed
The window frame edge that vehicle window finally closes corresponds to edge curve (AB), then in the picture, when
Occur, when the boundary curve OE of object overlaps with edge curve (AB), show to close at vehicle window
Close the object in region and arrived edge, have a risk clamped by vehicle window, the most now and time control
Vehicle window phase down processed, stops vehicle window and rises or perform down maneuver, prevent object to be gripped to.
Preferably, for reducing image recognition region, in image procossing, can be in vehicle window window frame district
Setting an anti-pinch region in territory, this anti-pinch region corresponds to vehicle window and closes with the last window frame limit closed
One section of region before conjunction, such as, can set anti-pinch region default as the window frame limit of the last Guan Bi of distance
Region in distance range, in the range of distance 0.2 meter.In this case, Tu2Zhong Qu
Territory (ABCD) corresponds to this anti-pinch region, when carrying out image recognition and judging, and can be only
Carry out in image anti-pinch region, when there is object, and the edge of object in image anti-pinch region
Curve and default edge curve co-insides, then judge to exist by folder risk, controls vehicle window the most in time and moves
Make.The method can improve image processing speed, improves monitoring efficiency.
Concrete, in a kind of specific embodiment, described image acquisition device 100 includes photographic head
With the imageing sensor for imaging.Wherein, photographic head includes the optical elements such as lens, is used for
Receive the light that the external world enters, by adjusting focal length to ensure that there is imaging effect clearly.
Imageing sensor is a photosensitive electronics unit being made up of the pixel of one group of m row × n row
Device, corresponding imaging forms the image being made up of the pixel of one group of m row × n row.Optionally,
Described imageing sensor can use COMS imageing sensor, or ccd image sensor.
Described image processor 101 can use Digital Image Processor, can be passed by imageing sensor
Defeated picture signal is converted into digital signal, and carry out image procossing further, characteristics of image carries
The computing such as take.
Refer to Fig. 3, in one specific embodiment of the present invention, this anti-pinch device also include with
It is that described central processing unit 102 is connected, for instruction sends or receives the communication of external command
Module 103.Communicated with the external world by communication module 103.
Described anti-pinch device also includes and described image processor 101, described central processing unit 102
The memorizer 104 being connected.Central processing unit is adjusted for anti-pinch judgement, each component controls, data
Operate, by memorizer 104 storage running data, instruction, generation with budget, instruction process etc.
The data such as code, algorithm.
Preferably, in order to prevent insufficient light under relatively dark situation, and image recognition and anti-pinch are affected
Function, described power window clamp prevention device also can be provided for the infrared light to window frame region light filling
Source, can arrange one or more infrared light supply, such as infrared LED light source.So, see when vehicle window
When survey region is dark, by infrared light supply light filling, it is ensured that collect image clearly, it is ensured that
Anti-pinch protection function.Optionally, supplementary lighting sources may be used without the other light sources such as tengsten lamp.
Preferably, in order to prevent the reflective impact on image acquisition produced inside and outside car, this enforcement
Example power window clamp prevention device also can arrange polaroid at photographic head, installs polarisation before photographic head
Sheet, it is to avoid inside and outside car, reflective interference image acquisition device gathers image.Concrete, polaroid is permissible
It is arranged on image acquisition device anterior, it is possible to be arranged between photographic head and imageing sensor.
Therefore, power window clamp prevention device of the present invention, use the method for image recognition to carry out anti-pinch
Control.By the changing features of image in identification power window clamp prevention region, it is judged that anti-pinch region
The most whether there is object and whether object has by folder risk, and then control vehicle window stopping pass in time
Close or decline, reaching the effect preventing object from being pressed from both sides.Compared with prior art, present invention tool
Have the following advantages:
1, the anti-pinch using image conversion controls, and processing procedure is simple, without complicated software algorithm,
Anti-pinch controls process with human perception process relatively, more tallies with the actual situation.
2, anti-pinch protection effect will not, abrasion aging by vehicle component, displacement, deformation,
Use the impacts such as environment change, anti-pinch effect stability.
3, the method gathering image is utilized to carry out anti-pinch judgement.It is different from existing scheme employing
The method of conversion motor magnetic force amount change, this programme is directly perceived, False Rate is relatively low, and reliability is high.
Accordingly, the embodiment of the present invention also provides for a kind of power window clamp prevention system, refer to figure
4, described power window clamp prevention system includes:
Power window clamp prevention device 1 as above；
Car that be connected with described power window clamp prevention device 1, according to instruction control vehicle window action
Window control module 2.
Wherein, vehicle window control module 2 is connected with vehicle window, specifically can include drive motor and for
Drive the actuating device of vehicle window action, be used for controlling vehicle window action.
The power window clamp prevention device 1 image by collecting vehicle window frame region, identifies that vehicle window is prevented
, there is object in the changing features of image in nip territory in judging anti-pinch region and object has and pressed from both sides
During risk, send instruction the most in time.Vehicle window control module 2 controls vehicle window action according to instruction,
Control vehicle window stops rising or reversion decline, prevents object to be gripped to, and then realizes anti-pinch guarantor
The function protected.
In the present embodiment, described power window clamp prevention device 1 leads to described vehicle window control module 2
In crossing car, local interconnect network 3 is connected, and specifically can be entered by CAN or LIN bus
Row communication.
Concrete, described power window clamp prevention device 1 may be provided at directly over vehicle window, such as car
Directly over window in roof, it is possible to the image in Real-time Collection vehicle window window frame region.Preferably, described
The observation angle of the image acquisition device of power window clamp prevention device 1 is set to 160 degree of-180 degree,
Observed range is less than or equal to 1 meter, it is ensured that collect more comprehensive, more visible window frame administrative division map
Picture.It addition, in order to strengthen anti-pinch Detection results, user can also be according to demand at vehicle electric
The position up and down of vehicle window is respectively mounted this anti-pinch device.
In user's in-use automotive, can control open vehicle window or close car by operation car window switch
Window；During power windows is closed, this power window clamp prevention device energy Real-time Collection window frame
Area image, and judge whether anti-pinching car window region exists object and object by image recognition
Whether exist by folder risk, if vehicle window window frame region does not has object, power windows continues to rise,
Complete to close；If there is object and object has the risk pressed from both sides, then control on power windows stops
Rise or perform down maneuver, preventing object to be gripped to, reach the effect of anti-pinch protection.The present invention
Power window clamp prevention Apparatus and system simple in construction, stable performance, it is achieved property is preferable.
Above a kind of power window clamp prevention Apparatus and system provided by the present invention is carried out in detail
Thin introduction.Principle and the embodiment of the present invention are explained by specific case used herein
Stating, the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.
It should be pointed out that, for those skilled in the art, former without departing from the present invention
On the premise of reason, it is also possible to the present invention is carried out some improvement and modification, these improve and modify
Also fall in the protection domain of the claims in the present invention.
Claims (10)
1. a power window clamp prevention device, it is characterised in that including:
Image acquisition device for the image in collecting vehicle window frame region；
It is that be connected with described image acquisition device, for the image gathered is dealt with and extracts image
The image processor of middle object features information；
That be connected with described image processor, for when judge objects in images boundary curve and
The central processing unit of instruction is sent during the default edge curve co-insides of window frame.
2. device as claimed in claim 1, it is characterised in that also include and described central authorities
It is that processor is connected, for instruction sends or receives the communication module of external command.
3. device as claimed in claim 2, it is characterised in that also include and described image
The memorizer that processor, described central processing unit are connected.
4. device as claimed in claim 1, it is characterised in that described image acquisition device bag
Include photographic head and the imageing sensor for imaging.
5. device as claimed in claim 4, it is characterised in that also include for window frame
The infrared light supply of region light filling.
6. device as claimed in claim 4, it is characterised in that arrange at described photographic head
There is polaroid.
7. a power window clamp prevention system, it is characterised in that including:
Power window clamp prevention device as described in any one of claim 1-6；
Vehicle window that be connected with described power window clamp prevention device, according to instruction control vehicle window action
Control module.
8. system as claimed in claim 7, it is characterised in that described power window clamp prevention
Device is connected by local interconnect network in car with described vehicle window control module.
9. system as claimed in claim 7, it is characterised in that described power window clamp prevention
Device is arranged on directly over vehicle window.
10. system as claimed in claim 9, it is characterised in that described power window clamp prevention
The observation angle of the image acquisition device of device is 160 degree of-180 degree, and observed range is less than or equal to 1
Rice.
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| 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN105927088A true CN105927088A (en) | 2016-09-07 |
| CN105927088B 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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| CN106939751A (en) * | 2017-05-22 | 2017-07-11 | 杨燕 | Intelligent automatic control method |
| CN106968544A (en) * | 2017-05-22 | 2017-07-21 | 刘剑 | Intelligent forms based on infrared distance measuring |
| CN106968552A (en) * | 2017-05-23 | 2017-07-21 | 孙霞 | Security window control method based on image procossing |
| CN107083897A (en) * | 2017-05-22 | 2017-08-22 | 杨燕 | Power windows automatic closing system |
| CN107100477A (en) * | 2017-05-22 | 2017-08-29 | 刘剑 | Intelligentized control method based on infrared distance measuring |
| 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 |
| CN109296286A (en) * | 2018-09-18 | 2019-02-01 | 惠州拓邦电气技术有限公司 | Railless electric door progress control method, the apparatus and system of view-based access control model |
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| CN112145009A (en) * | 2020-09-29 | 2020-12-29 | 北京百度网讯科技有限公司 | Vehicle window lifting control method and device and system for controlling vehicle window lifting |
| 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 |
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| CN107100477A (en) * | 2017-05-22 | 2017-08-29 | 刘剑 | Intelligentized control method based on infrared distance measuring |
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| CN109296286A (en) * | 2018-09-18 | 2019-02-01 | 惠州拓邦电气技术有限公司 | Railless electric door progress control method, the apparatus and system of view-based access control model |
| 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 |
| CN112145009A (en) * | 2020-09-29 | 2020-12-29 | 北京百度网讯科技有限公司 | Vehicle window lifting control method and device and system for controlling vehicle window lifting |
| 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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| CN105927088B (en) | 2018-08-28 |
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