CN104473543A - Automatic door curtain control push method based on image acquisition - Google Patents
Automatic door curtain control push method based on image acquisition Download PDFInfo
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- CN104473543A CN104473543A CN201410661131.4A CN201410661131A CN104473543A CN 104473543 A CN104473543 A CN 104473543A CN 201410661131 A CN201410661131 A CN 201410661131A CN 104473543 A CN104473543 A CN 104473543A
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- door curtain
- human body
- image
- doorframe
- width value
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H5/00—Devices for drawing draperies, curtains, or the like
- A47H5/02—Devices for opening and closing curtains
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H5/00—Devices for drawing draperies, curtains, or the like
- A47H5/02—Devices for opening and closing curtains
- A47H2005/025—Devices for opening and closing curtains controlled by electronic sensors
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Abstract
The invention discloses an automatic door curtain control push method based on image acquisition. Based on hanging mechanisms, sliding rails, sliders and linear motors fixed on the sliders, the method includes the steps: presetting a door frame induction area, acquiring a human body entering the door frame induction area and generating image signals; analyzing the image signals to obtain the covering density of the human body in the image; calculating the covering density of the human body in the image to obtain a width value of the human body in the image; calculating a needed push width value of a door curtain body on a door frame according to the width value of the human body in the image, and converting the width value of the door curtain body into driving signals for controlling the linear motors to move; pushing the sliders to linearly move in the sliding rails according to the received driving signals by the linear motors, and pushing the door curtain body on the hanging mechanisms to be staggered and reach the needed push width value. The needed push width value of the door curtain is automatically detected and calculated, automation and intelligence are realized, and a pedestrian path can be conveniently provided.
Description
Technical field
The present invention relates to a kind of door curtain based on IMAQ and automatically control promotion method, belong to the technical field that door curtain controls.
Background technology
Doorframe is often equipped with door curtain, common door curtain comprises door curtain body, and by hanging mechanism door curtain fixed and be suspended on doorframe, to play isolated air, effect such as gear mosquito etc., such door curtain structure is simple, has the significantly effect such as isolated cold and hot, cold-proof low temperature resistant, sound insulation, dust-proof, insect protected, gear peculiar smell thus, also personnel, vehicle, article turnover can be facilitated, barriering effect is good, prevents cold air to run off, with low cost.
Although door curtain in use can bring above-mentioned beneficial effect, in concrete use, still there are some problems.As in use, door curtain makes indoor light be not easy to be penetrated, or the light of outdoor not easily penetrates, and door curtain body does not possess illumination functions, makes can accurately not open in use door curtain body, especially when using night, more inconvenient.Or when door curtain uses, easily cause sight obstruction, only can play logical wind action.Or in use, door curtain needs manually automatically to open, and cannot respond in time and stagger between automatic control gate curtain, to form the passage passed through for human body, do not possess automation, make the degree of dependence of artificial opening ways high thus, service efficiency is low.
For existing door curtain Problems existing, people attempt to make improvement.
As Chinese utility model patent name is called a kind of strip holiday lamp door curtain, application number is 200720091376.3, in the patent document of applying date 2007-08-07, disclose " a kind of strip holiday lamp door curtain, color lamp and wire embed in the strip lamp cave of band door curtain or lamp hole and wire casing, by main traverse line and voltage control device, electronic component is connected, color lamp can be set as various pattern and calligraphy and painting on request ", thus color lamp is combined with band door curtain, namely lantern and wire are firmly clamped in door curtain band, be equipped with voltage control device and electronic component, solve door curtain body and do not possess illumination functions, make the problem can not accurately opening door curtain body in use, make the serviceability that the existing common band door curtain of door curtain body is the same, turn increase using function and the aesthetic value of door curtain, glimmer during work colorful, solve the problem that traditional door curtain can not throw light on to a certain extent.However, such door curtain still needs artificial unlatching, cannot respond in time and stagger between automatic control gate curtain, to form the passage passed through for human body, not possessing automation.
And be called a kind of gear sight line door curtain that ventilates in Chinese utility model patent name, application number is 201220046181.8, the applying date is in the patent document of 2012-02-14, disclose " a kind of gear sight line door curtain that ventilates, comprise two row's door curtains, often arrange door curtain and comprise several door curtain bar, hook, door curtain bar peg, rotary gear shaft, transmission device and a door curtain Horizontal hanging lever, the quantity of door curtain bar and the quantity of door curtain bar peg, the quantity of rotary gear shaft is consistent, wherein transmission device is arranged in door curtain Horizontal hanging lever, door curtain bar is suspended on door curtain bar peg by hook, one end of rotary gear shaft is arranged in door curtain Horizontal hanging lever, and be connected with transmission device, the other end is connected with door curtain bar peg, all door curtain bars can with door curtain bar peg by transmission device with respective rotary gear shaft for axle center synchronous rotary equal angular, two row's door curtain Heterogeneous Permutations are between doorframe, and the door curtain Horizontal hanging lever of two row's door curtains is parallel to each other, the door curtain bar direction of rotation of two row's door curtains is contrary ", solve the problem that door curtain in use easily causes sight obstruction thus, not only make door curtain in use can control ventilation but also can prevent from blocking sight line.Although it accomplishes door curtain bar to be made to rotate according to the rotating shaft of transmission device control gear, but it can only realize the rotation of angle, if number is more or when needing doorframe to open wider area, cannot adjust, the width control system door curtain of the human body of doorframe can not be entered in time as required, cannot stagger according between the human body width automatic control gate curtain of induction in time, to form the passage passed through for human body, therefore, the structure of control still has problems.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, a kind of door curtain based on IMAQ is provided automatically to control promotion method, on the basis of the hanging mechanism be fixedly connected with door curtain body, fixed rack on doorframe roof, collection is carried out and synthetic image signal to the human body entering doorframe induction region, image is analyzed on the basis obtaining coverage density and control linear electric motors drive slide block movement, drive between door curtain body and stagger, make it possible to the width automatically adjusting the unlatching of door curtain body needs according to the situation of human body, have more standby automation and intellectuality, walkway can be provided easily.
The present invention specifically solves the problems of the technologies described above by the following technical solutions:
A kind of door curtain based on IMAQ controls promotion method automatically, the method based on the hanging mechanism be fixedly connected with door curtain body, be fixed on slide rail and the holding slide block on slide rail, the linear electric motors be fixed on slide block on doorframe roof, specifically comprise the following steps:
Step (1), preset doorframe induction region, and collection is carried out and synthetic image signal to the human body entering doorframe induction region;
Step (2), carry out analyzing the coverage density obtaining human body in image to described picture signal;
Step (3), the width value of human body in image is calculated to the coverage density of human body in described image; Calculate according to the width value of human body in image the width value that doorframe is pushed open needed for door curtain body, and will the drive singal controlling linear electric motors motion be converted to;
Step (4), described linear electric motors promote slide block moving linearly in slide rail according to the drive singal received, with the door curtain body promoted on hanging mechanism and order about the width staggered between door curtain body reach needed for the width value pushed open.
Further, as a preferred technical solution of the present invention: also comprise in described step (1) and detecting the distance entered between the human body of doorframe induction region and doorframe, form the signal carrying out IMAQ when reaching in predetermined distance range.
Further, as a preferred technical solution of the present invention: adopt the image partition method based on wavelet analysis to obtain the coverage density of human body in image in described step (2).
Further, as a preferred technical solution of the present invention: generate simultaneously according to the width value that doorframe is pushed open needed for door curtain body in described step (3) or control separately the drive singal of each linear electric motors motion.
Further, as a preferred technical solution of the present invention: in described step (1), the scope of setting doorframe induction region is 1 to 2 meter.
The present invention adopts technique scheme, can produce following technique effect:
(1), the door curtain based on IMAQ provided by the invention controls promotion method automatically, on the basis of the hanging mechanism be fixedly connected with door curtain body, fixed rack on doorframe roof, collection is carried out and synthetic image signal to the human body entering doorframe induction region, image is analyzed on the basis obtaining coverage density and control linear electric motors drive slide block movement, drive between door curtain body and stagger, make it possible to the width automatically adjusting the unlatching of door curtain body needs according to the situation of human body, have more standby automation and intellectuality, walkway can be provided easily.And still same plane be can be positioned between each door curtain body, normal baffle and airtight effect realized.
(2), in this method, further comprise and the distance entered between the human body of doorframe induction region and doorframe is detected, the signal triggering and carry out gathering is formed when reaching in predetermined distance range, increase the mode of triggering thus, make just to gather when human body is positioned at the scope of range sensor, be convenient to stability and the Computer image genration of the image gathered, promote clearness.
(3), method also adopts the image partition method based on wavelet analysis to obtain the coverage density of human body in image, when having good-frequency local characteristic, dimensional variation characteristic sum direction character, therefore more accurate at image procossing.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet automatically controlling promotion method based on the door curtain of IMAQ.
Detailed description of the invention
Below in conjunction with Figure of description, embodiments of the present invention are described.
As shown in Figure 1, the present invention devises a kind of door curtain based on IMAQ and automatically controls promotion method, the method based on the multiple hanging mechanisms be fixedly connected with door curtain body, be fixed on slide rail and the holding multiple slide blocks on slide rail, the linear electric motors be fixed on each slide block on doorframe roof, specifically comprise the following steps:
Step (1), preset doorframe induction region, and collection is carried out and synthetic image signal to the human body entering doorframe induction region; When human body is not positioned at doorframe induction region, then do not gather;
Step (2), carry out analyzing the coverage density obtaining human body in image to described picture signal;
Step (3), the width value of human body in image is calculated to the coverage density of human body in described image; Calculate according to the width value of human body in image the width value that doorframe is pushed open needed for door curtain body, and will the drive singal controlling linear electric motors motion be converted to;
Step (4), described linear electric motors promote slide block moving linearly in slide rail according to the drive singal received, with the door curtain body promoted on hanging mechanism and order about the width staggered between door curtain body reach needed for the width value pushed open.
Thus, by carrying out collection to the human body entering doorframe induction region and synthetic image, image is analyzed on the basis obtaining coverage density and control linear electric motors drive slide block movement, make it possible to the width automatically adjusting the unlatching of door curtain body needs according to the situation of human body, have more standby automation and intellectuality.
In above-mentioned step (1), the present invention also comprises distance detecting step, detects the distance entered between the human body of doorframe induction region and doorframe, forms the signal carrying out IMAQ when reaching in predetermined distance range.First distance detects presets detecting distance, form the signal triggering and carry out gathering when human body reaches in predetermined distance range, increase the mode of triggering thus, make just to gather when human body is positioned at the scope of distance detection, be convenient to stability and the Computer image genration of the image gathered, promote clearness.
And, in analysis chart picture during the coverage density of human body, existing various image analysis method can be adopted to obtain in the step (2).The image partition method based on wavelet analysis is preferably adopted in the present invention, wavelet transformation and analysis are as a kind of multiple dimensioned multichannel analysis instrument, relatively be applicable to carrying out multiple dimensioned rim detection to image, typically just like Mallat Wavelet Modulus Maxima edge detection algorithm.Therefore can apply in the present invention, if the Image Segmentation Using that will generate becomes individual grid, to the grid computational analysis that covers by human body, the grid quantity statistics the widest length of side occupied thus obtains the width in image shared by human body.Utilize the method for the Iamge Segmentation based on wavelet analysis thus, when having good-frequency local characteristic, dimensional variation characteristic sum direction character, therefore more accurate at image procossing.
Method of the present invention, when implementing, can generate simultaneously according to the width value that doorframe is pushed open needed for door curtain body or control separately the drive singal of each linear electric motors motion.Opening of door curtain body can be made thus more flexible.The scope of setting doorframe induction region is 1 to 2 meter, makes image form best results, is convenient to the human body image collecting suitable size.
A specific embodiment of the present invention is as follows: be 3 meters at doorframe, the width of door curtain body is 1.5 meters, and doorframe arranges 1 slide rail, and 2 slide block holdings within it and be fixedly connected with 2 hanging mechanisms respectively, hanging mechanism connects door curtain body respectively, and 2 linear electric motors are fixed with corresponding slide block.Adopt 1 imageing sensor to be arranged on the middle position of doorframe, after connecting each parts in device, doorframe is responded to.The scope entering doorframe induction region that first control unit sets imageing sensor collection is 2 meters.At human body once enter doorframe induction region, imageing sensor namely can synthetic image signal, and can also arrange distance detecting unit detecting distance is further 1.5 meters, when there being 1 people enter region and be positioned within 1.5 meters, generates the image of a people.Recycle based on wavelet analysis image partition method to generate Image Segmentation Using, and analyze, as being divided into 64 grids, by to the grid that covers by human body extract, obtain the grid at most edge, both sides that human body width covers, distance between calculating is 2 centimetres, converting to relative to the transverse width of human body in reality is thus 0.6 meter, obtain the horizontal cover width of this people, namely the horizontal cover width obtaining this human body is as control instruction after 0.6 meter, according to the horizontal cover width of human body, to calculate the width that doorframe is pushed open needed for door curtain body be 0.6 meter for 0.6 meter, also corresponding error range 0.2 meter can be added, namely 0.8 meter, thus the control instruction of the required width value pushed open 0.8 meter is converted to the drive singal controlling linear electric motors motion, described first linear electric motors are being initially 1 meter of laying respectively at doorframe, second line motor is being initially 2 meters of laying respectively at doorframe, then controller controls the distance total size of two motor movements is 0.8 meter, therefore, the rightabout motion simultaneously of 2 linear electric motors can be controlled simultaneously, as moved to 0.6 meter of being positioned at doorframe by the first linear electric motors, the second linear electric motors move to 2.4 positions of doorframe, and the distance between two door curtain bodies staggers 0.8 meter.Or only controlling 0.2 meter of that the first linear electric motors move to doorframe, the second linear electric motors are still in 2 meters of of doorframe, and making the distance between two door curtain bodies stagger thus is still 0.8 meter.
Therefore, method provided by the invention, controls the distance staggered between door curtain body, does not need artificial openable door curtain, can save energy consumption further according to human body reasonable wide, has more standby automation and intellectuality, can provide walkway easily.
By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.
Claims (5)
1. the door curtain based on IMAQ controls promotion method automatically, it is characterized in that, the method based on the hanging mechanism be fixedly connected with door curtain body, be fixed on slide rail and the holding slide block on slide rail, the linear electric motors be fixed on slide block on doorframe roof, specifically comprise the following steps:
Step (1), preset doorframe induction region, and collection is carried out and synthetic image signal to the human body entering doorframe induction region;
Step (2), carry out analyzing the coverage density obtaining human body in image to described picture signal;
Step (3), the width value of human body in image is calculated to the coverage density of human body in described image; Calculate according to the width value of human body in image the width value that doorframe is pushed open needed for door curtain body, and will the drive singal controlling linear electric motors motion be converted to;
Step (4), described linear electric motors promote slide block moving linearly in slide rail according to the drive singal received, with the door curtain body promoted on hanging mechanism stagger reach needed for the width value pushed open.
2. automatically promote control method based on the door curtain of IMAQ according to claim 1, it is characterized in that: also comprise in described step (1) and the distance entered between the human body of doorframe induction region and doorframe is detected, forming the signal carrying out IMAQ when reaching in predetermined distance range.
3. automatically promote control method based on the door curtain of IMAQ according to claim 1, it is characterized in that: in described step (2), adopt the image partition method based on wavelet analysis to obtain the coverage density of human body in image.
4. automatically promote control method based on the door curtain of IMAQ according to claim 1, it is characterized in that: generate simultaneously according to the width value that doorframe is pushed open needed for door curtain body in described step (3) or control separately the drive singal of each linear electric motors motion.
5. automatically promote control method based on the door curtain of IMAQ according to claim 1, it is characterized in that: in described step (1), the scope of setting doorframe induction region is 1 to 2 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410661131.4A CN104473543A (en) | 2014-11-19 | 2014-11-19 | Automatic door curtain control push method based on image acquisition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410661131.4A CN104473543A (en) | 2014-11-19 | 2014-11-19 | Automatic door curtain control push method based on image acquisition |
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| CN104473543A true CN104473543A (en) | 2015-04-01 |
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| CN201410661131.4A Pending CN104473543A (en) | 2014-11-19 | 2014-11-19 | Automatic door curtain control push method based on image acquisition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110310398A (en) * | 2019-06-25 | 2019-10-08 | 深圳市酷开网络科技有限公司 | A kind of pet access control method, pet access control system and storage medium |
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