CN103908064A - Intelligent desk with sitting posture correcting function and correcting method implemented by intelligent desk - Google Patents

Intelligent desk with sitting posture correcting function and correcting method implemented by intelligent desk Download PDF

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Publication number
CN103908064A
CN103908064A CN201410134764.XA CN201410134764A CN103908064A CN 103908064 A CN103908064 A CN 103908064A CN 201410134764 A CN201410134764 A CN 201410134764A CN 103908064 A CN103908064 A CN 103908064A
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China
Prior art keywords
sitting posture
intelligent desk
image
control box
user
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CN201410134764.XA
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Chinese (zh)
Inventor
陈志华
吕春玲
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ANHUI HAIJU INFORMATION TECHNOLOGY Co Ltd
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ANHUI HAIJU INFORMATION TECHNOLOGY Co Ltd
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Priority to CN201410134764.XA priority Critical patent/CN103908064A/en
Publication of CN103908064A publication Critical patent/CN103908064A/en
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Abstract

The invention relates to an intelligent desk with a sitting posture correcting function. The intelligent desk comprises a desktop, desk legs, a visible light camera, a control box and a display panel. A read-write area is arranged on the desktop, the visible light camera, the control box and the display panel are arranged at the front end of the desktop, the display panel is used for displaying sitting postures, the visible light camera can form images by the aid of visible light, and imaging results are transmitted to the control box, so that the images can be processed by means of being three-dimensionally reconstructed according to perspective rules, and information of the sitting posture images of users is analyzed and is ultimately transmitted to the display panel. The invention further provides a sitting posture correcting method on the basis of the intelligent desk. The intelligent desk and the sitting posture correcting method have the advantages that the sitting postures can be corrected by the aid of an information technology and an image modeling processing technology, and the users do not feel uncomfortable; the sitting postures of the users can be effectively and accurately corrected, and accordingly impairment to the eyesight of the users due to incorrect sitting postures can be prevented.

Description

A kind of Intelligent desk correcting faulty sitting posture and antidote thereof
Technical field
The present invention relates to intelligent medical field, more specifically, relate to Intelligent desk and antidote thereof that a kind of combination electronic information and image processing techniques correct faulty sitting posture.
Background technology
At present, according to investigation, bathomorphic main inducing has two, and the one, sitting posture is improper, and the 2nd, excess eye-using.Nowadays, on market, also there is the desk that some correct faulty sitting posture, substantially can be divided into and force to correct and the large class of sensor monitoring two.
The so-called desk that corrects faulty sitting posture forced, is by sitting posture fixation kit is set on backrest, realizes by fixing human mechanically the object correcting faulty sitting posture.Not only complex structure of this desk, and force the mode correcting faulty sitting posture easily to bring sense of discomfort to user, and for the user of different builds, sitting posture fixation kit may not play a role effectively, for example, patent of invention " multifunctional intellectual posture-correcting desk and chair-201210411424.8 " is disclosed.
The desk of so-called sensor monitoring sitting posture, the generally distance to table rock by monitor user ' heads such as ultrasonic sensor, infrared sensor, range sensors.Because human body and desk distance is very near, this class monitoring mode is high to the required precision of sensor, but also can not monitor human body integral sitting posture, can not entirety judge that whether sitting posture is correct.Simultaneously sensor is easily subject to the impact of in one's hands, books etc., thereby causes erroneous judgement.For example, below, two disclose utility model patent " Intelligent school desk-201020571032.4 " and " Intelligent desk for preventing myopia-200920109095.5 ", and the former is exactly ultrasonic sensor and the infrared sensor adopting, and what the latter adopted is range sensor.
Summary of the invention
The object of the invention is to overcome defect and the deficiency of prior art, a kind of Intelligent desk correcting faulty sitting posture is provided, this desk is realized and being corrected faulty sitting posture by information technology and image modeling treatment technology, not only can not bring discomfort with user, and can effectively and accurately correct people's sitting posture, avoid really reducing eyesight because of abnormal sitting posture.
Another object of the present invention is also to provide a kind of Intelligent desk correcting faulty sitting posture and antidote thereof.
In order to achieve the above object, the invention provides a kind of Intelligent desk correcting faulty sitting posture, comprise desktop and table leg, it on described desktop, is read-write region, described Intelligent desk also comprises a visible image capturing head that is all arranged on described desktop front end, control box and for showing the display floater of sitting posture, described visible image capturing head passes through visual light imaging, and imaging results is transferred to and in described control box, carries out image processing, described image is treated to according to the laws of visual perspective image is carried out to three-dimensional reconstruction, the sitting posture image information of analysis user, finally described sitting posture image information is sent to described display floater.
According to one embodiment of present invention, described control box comprises the power module and the switch that are connected for the microprocessor of image processing and with described microprocessor, the output of described visible image capturing head accesses described microprocessor, and the input of described display floater accesses described microprocessor.
According to one embodiment of present invention, described control box also comprises buzzer, and described buzzer for sending alarm in the time that user's abnormal sitting posture is true, and described buzzer is connected with described microprocessor.
According to one embodiment of present invention, described control box also comprises the TIP that Intelligent desk parameter is set, and described TIP is connected with described microprocessor.
According to one embodiment of present invention, the table leg that described table leg is capable of regulating top height.
The present invention also provides a kind of Intelligent desk correcting sitting posture method based on above-mentioned, said method comprising the steps of:
A1, single visible image capturing head take user's sitting posture image, and by this sitting posture image transmitting to control box;
A2, the image sequence single visible image capturing head being collected by the microprocessor in control box carry out denoising, equalization, sharpening, image dividing processing successively, and extract the characteristic point information of each object;
A3, extract the characteristic point information of each objects according to steps A 2, correctly identify main object, extract the skeleton model of human vertebra;
A4, according to the position relationship of each object in image, and according to the laws of visual perspective, complete three-dimensional reconstruction, and determine the locus coordinate of each object;
A5, calculate and sit apart from, sighting distance according to the space coordinates information of each object, by the vertebral bones model under comparison user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, if abnormal sitting posture is true, send a warning, and repeat A1~A4 step, until correcting sitting posture is correct.
According to one embodiment of present invention, described main object comprises human eye, chest, joint, desktop.
According to one embodiment of present invention, when user leaves after camera coverage, in captured image sequence, exist without human body; By the frame existing without human body continuously in detected image sequence, calculate the duration that user leaves; In the time that the time that user leaves exceedes preset value, by normal shutdown stop control box.
The present invention, with respect to prior art, has following beneficial effect:
A kind of Intelligent desk correcting faulty sitting posture of the present invention is by the imaging of single visible image capturing, and carry out three-dimensional image reconstruction according to the laws of visual perspective, and contrast the vertebral bones model under user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, to realize the object of correcting user's sitting posture.This desk does not both change sitting posture by mechanical forced user does not need high-precision sensor to realize yet, and can effectively allow user form good sitting posture custom and remind suitable access time.And this structure of desk is simple, and cost is lower, be applicable to applying.
Brief description of the drawings
Fig. 1 is the structural representation of the Intelligent desk that corrects faulty sitting posture of the present invention;
Fig. 2 is the theory diagram of control box of the present invention;
Fig. 3 is the control box theory diagram in the embodiment of the present invention;
Fig. 4 is the human body sitting posture picture that in the embodiment of the present invention, visible image capturing head photographs;
Fig. 5 is human skeleton model schematic diagram in the embodiment of the present invention;
Fig. 6 is the correct faulty sitting posture schematic flow sheet of method of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
As shown in Figure 1, the structural representation of the Intelligent desk correcting faulty sitting posture for the present invention, this Intelligent desk comprises table leg 1 and desktop 2, wherein, it on desktop 2, is read-write region, in the embodiment of the present invention, read-write region can be level or the desktop that has a constant tilt angle or angle of inclination freely to adjust.For convenient read-write, can also one upright book file (being similar to the qin spectrum clamp of piano) be set at desktop front end, this upright book file can be vertical or have a constant tilt angle or angle of inclination can freely adjust and even set level completely desktop.
Intelligent desk of the present invention also comprises the single visible image capturing S1 that is all arranged on desktop 2 front ends, control box 3 and for showing the display floater 4 of sitting posture information, wherein, a visible image capturing S1 passes through visual light imaging, and imaging results is transferred to and in control box 3, carries out image processing, image is treated to according to the laws of visual perspective image is carried out to three-dimensional reconstruction, the sitting posture image information of analysis user, is finally sent to display floater 4 by sitting posture image information.In the embodiment of the present invention, a visible image capturing S1 is used for taking human body sitting posture, and human body sitting posture image sequence will participate in image processing and human body is identified, skeleton model extracts in calculating.A visible image capturing S1 should be installed in and can photograph the people position of (or most of) above the waist above the waist, and be difficult for being blocked by other objects (as light fixture, books), and as far as possible on to the good camera site of human body, preferably, the local fixing camera not being blocked in the front upper place in tabletop reading, writing region.Camera is installed in the place that for example, can not be blocked above upright book file.Display floater 4 of the present invention, for showing current human body sitting posture information, preferably, uses display panels, display floater 4 can be arranged at desktop 2 and read and write area peripheral edge, or be arranged on upright book file top, in the time that human body sitting posture is normal, show normal sitting position information; In the time that human body sitting posture is abnormal, show corresponding anomaly item, as excessively near in sighting distance, sit apart near with excessivelying, contain the information such as chest, crooked sitting posture.
As shown in Figure 2, for control box 3 operation principle structural representations of the present invention, this control box 3 comprises the power module and the switch that are connected for the microprocessor of image processing and with microprocessor, the output of a visible image capturing S1 all accesses microprocessor, the input access microprocessor of display floater 4.Power module of the present invention can use civilian alternating source, also can use battery, battery, may need rectifier etc. when alternating source when using, in the time using battery, may need low electro-detection, in the time using battery, need voltage detecting and charging module.Switch of the present invention can be arranged on a body, or remote control switch, closing switch in the time that people leaves desk, and a visible image capturing S1, control box 3, display floater 4 etc. quit work, and deenergization, can economize on resources, and reduces device loss.
As shown in Figure 3, control box 3 in the embodiment of the present invention can also comprise for sending the buzzer of alarm and for the TIP of Intelligent desk parameter is set, buzzer is all connected with microprocessor with TIP in the time that user's abnormal sitting posture is true.User can set relevant parameter on this TIP, as time threshold of continuous read-write etc., TIP can be arranged on a body, also can be remote controller form, can also be with output equipment in display floater be integrated, there is the contact panel of User Interface, can input and exportable.
In the embodiment of the present invention, table leg 1 is for regulating the table leg 1 of desktop 2 height, can be manual adjustments mode, change the length of table leg, table top height adjusting by manually adjusting movable buckle, gear etc. (the needing buckle to fix) structure being arranged on table leg 2; Also can be electrical adjustment mode, user selects and presses and highly regulates button (need at least comprise " rising ", " reduction " button, button is arranged on a body, be not limited to desktop, can be the arbitrary suitable position of a body), regulate the signal of telecommunication of button by control box 3 analytic Height, length adjustment module on table leg 1 is sent corresponding instruction, thereby as one man, accurately adjust the length (four problems that leg is different in size that may occur can avoid manual adjustments time) of each table leg 1, regulate desktop 2 height.
As shown in Figure 6, be the correct faulty sitting posture schematic flow sheet of method of the present invention, the method specifically comprises the following steps:
A1, single visible image capturing head take user's sitting posture image, as shown in Figure 4, and by this sitting posture image transmitting to control box;
A2, the image sequence collecting by the microprocessor visible image capturing head in control box carry out denoising, equalization, sharpening, image successively to be cut apart, and extracts the characteristic point information of main object;
A3, extract the characteristic point information of each objects according to steps A 2, correctly identify main object, extract the skeleton model of human vertebra, as shown in Figure 5;
A4, according to the position relationship of each object in image, and according to the laws of visual perspective, complete three-dimensional reconstruction, and determine the locus coordinate of each object;
A5, calculate and sit apart from, sighting distance according to the space coordinates information of each object, by the vertebral bones model under comparison user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, if abnormal sitting posture is true, send a warning, and repeat A1~A4 step, until correcting sitting posture is correct.
In the embodiment of the present invention, for the image processing of steps A 2, each frame being specially in the image sequence first a visible image capturing S1 being collected carries out denoising, denoising mode in the present embodiment comprises smothing filtering, medium filtering, the modes such as Gassian low-pass filter, after denoising, carry out equalization (gray-level histogram equalization, coloured image need to be revised aberration colour cast, adjust color saturation, contrast), sharpening (as rim detection such as Laplace operators), image cuts apart that (coloured image can be that the image based on color rgb value is cut apart, gray level image can be that the image based on morphology etc. is cut apart), feature extraction, as extract eyes, chest, main joint, desktop, the operations such as the characteristic value at the key position places such as books, the characteristic value extracting will participate in next step pattern-recognition step,
In the embodiment of the present invention, for steps A 3, be specially: to the characteristic information obtaining in A2 image processing step, correctly identify the objects such as human eye, chest, main joint, desktop, this part algorithm for pattern recognition can complete by modes such as SVMs (mode of pattern-recognition is various, and has his own strong points, and is not repeated) herein, by the method for machine learning, the skeleton model of human vertebra can be extracted.
In the embodiment of the present invention, in steps A 4, be specially three-dimensional reconstruction: according to the position relationship of each object in image, according to the laws of visual perspective, two-dimentional image is carried out to three-dimensional reconstruction.For example, in all images, the position of desktop remains constant, by the two-dimensional position relation between eyes, chest and desktop in two dimensional image, can obtain the three-dimensional space position of these objects.Depth information in three-dimensional information can pass through perspective relation (same object, near big and far smaller under perspective) and obtain.This step may need to demarcate thing, demarcates the measurement of thing and can before dispatching from the factory, measure and write firmware, also can be in the time of system startup self-detection first, by user's subtest.Three-dimensional reconstruction has been determined the locus coordinate of each object, and the locus coordinate of these objects calculates the sitting posture information that participates in next step.
In the embodiment of the present invention, in steps A 5, be specially sitting posture information and calculate: in previous step three-dimensional reconstruction, obtained eyes, chest, the table coordinate information along, vertebral bones model.From these coordinates, can calculate and sit apart from (distance between chest and table edge), sighting distance (eyes are from the distance of books).By the vertebral bones model under comparison user's vertebral bones model and standard sitting posture, whether can analysis user current sitting posture is correct, such as whether containing chest, crooked etc.Finally, corresponding sitting posture result need to be sent to output equipment as on display floater 4, and show corresponding prompting message.
The present invention is in embodiment, can also the method by correcting sitting posture calculate the continuous access time of user, microprocessor keeps the frame of sitting posture continuously by human body in detected image sequence, can calculate the human body duration of read-write continuously, in the time that the duration of continuous read-write exceedes default threshold value, send signal to display floater, reminding user is suitably had a rest.In addition, when user leaves long time, can automatic shutdown and cut off the electricity supply, being specially microprocessor can, by the variation of human figure, position in detected image sequence, judge user's action, the action that therefore user leaves desk can be detected; When user leaves after camera coverage, in the image sequence of taking the photograph, exist without human body; By there is continuously the frame of (or being present on seat without human body) in detected image sequence without human body, can calculate the duration that user leaves; In the time that the time that user leaves exceedes preset value, by normal shutdown stop system, deenergization.
In sum, a kind of Intelligent desk correcting faulty sitting posture of the present invention is by the S1 imaging of single visible image capturing, and carry out three-dimensional image reconstruction according to the laws of visual perspective, and contrast the vertebral bones model under user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, to realize the object of correcting user's sitting posture.This desk does not both change sitting posture by mechanical forced user does not need high-precision sensor to realize yet, and can effectively allow user form good sitting posture custom and remind suitable access time.And this structure of desk is simple, and cost is lower, be applicable to applying.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not run counter to change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.

Claims (8)

1. the Intelligent desk correcting faulty sitting posture, comprise desktop and table leg, it on described desktop, is read-write region, it is characterized in that, described Intelligent desk also comprises a visible image capturing head that is all arranged on described desktop front end, control box and for showing the display floater of sitting posture, described visible image capturing head passes through visual light imaging, and imaging results is transferred to and in described control box, carries out image processing, described image is treated to according to the laws of visual perspective image is carried out to three-dimensional reconstruction, the sitting posture image information of analysis user, finally described sitting posture image information is sent to described display floater.
2. a kind of Intelligent desk correcting faulty sitting posture according to claim 1, it is characterized in that, described control box comprises the power module and the switch that are connected for the microprocessor of image processing and with described microprocessor, the output of described visible image capturing head accesses described microprocessor, and the input of described display floater accesses described microprocessor.
3. a kind of Intelligent desk correcting faulty sitting posture according to claim 2, is characterized in that, described control box also comprises buzzer, and described buzzer for sending alarm in the time that user's abnormal sitting posture is true, and described buzzer is connected with described microprocessor.
4. a kind of Intelligent desk correcting faulty sitting posture according to claim 2, is characterized in that, described control box also comprises the TIP that Intelligent desk parameter is set, and described TIP is connected with described microprocessor.
5. a kind of Intelligent desk correcting faulty sitting posture according to claim 1, is characterized in that the table leg that described table leg is capable of regulating top height.
6. a kind of correcting sitting posture method that the Intelligent desk based on described in claim 1~5 any one provides, is characterized in that, said method comprising the steps of:
A1, single visible image capturing head take user's sitting posture image, and by this sitting posture image transmitting to control box;
A2, the image sequence single visible image capturing head being collected by the microprocessor in control box carry out denoising, equalization, sharpening, image dividing processing successively, and extract the characteristic point information of each object;
A3, extract the characteristic point information of each objects according to steps A 2, correctly identify main object, extract the skeleton model of human vertebra;
A4, according to the position relationship of each object in image, and according to the laws of visual perspective, complete three-dimensional reconstruction, and determine the locus coordinate of each object;
A5, calculate and sit apart from, sighting distance according to the space coordinates information of each object, by the vertebral bones model under comparison user's vertebral bones model and standard sitting posture, whether the current sitting posture of analysis user is correct, if abnormal sitting posture is true, send a warning, and repeat A1~A4 step, until correcting sitting posture is correct.
7. a kind of correcting sitting posture method according to claim 6, is characterized in that, described main object comprises human eye, chest, joint, desktop.
8. a kind of correcting sitting posture method according to claim 6, is characterized in that, when user leaves after camera coverage, in captured image sequence, exists without human body; By the frame existing without human body continuously in detected image sequence, calculate the duration that user leaves; In the time that the time that user leaves exceedes preset value, by normal shutdown stop control box.
CN201410134764.XA 2014-04-03 2014-04-03 Intelligent desk with sitting posture correcting function and correcting method implemented by intelligent desk Pending CN103908064A (en)

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CN108111755A (en) * 2017-12-20 2018-06-01 广东技术师范学院 A kind of recognition methods of picked angle of human body and device
CN109190562A (en) * 2018-09-05 2019-01-11 广州维纳斯家居股份有限公司 Intelligent sitting posture monitoring method, device, intelligent elevated table and storage medium
CN109872359A (en) * 2019-01-27 2019-06-11 武汉星巡智能科技有限公司 Sitting posture detecting method, device and computer readable storage medium
CN110693191A (en) * 2019-10-31 2020-01-17 四川爱联科技有限公司 Height-adjustable intelligent table and height adjusting method thereof
CN111685635A (en) * 2020-03-19 2020-09-22 广东蓝水花智能电子有限公司 Human body sitting posture correction method
CN112545167A (en) * 2020-12-28 2021-03-26 惠州市金力智能科技有限公司 Domestic intelligent study table chair with position of sitting management
CN112861704A (en) * 2021-02-04 2021-05-28 开望(杭州)科技有限公司 Children writing analysis system and method based on sensor analysis and image processing
CN113051991A (en) * 2020-11-08 2021-06-29 泰州市出彩网络科技有限公司 Abnormal state dual detection platform and method
CN113080610A (en) * 2021-04-21 2021-07-09 付翠仙 Table and chair adjusting method and table and chair
WO2023000838A1 (en) * 2021-07-22 2023-01-26 北京有竹居网络技术有限公司 Information detection method and apparatus, medium, and electronic device
CN116092129A (en) * 2023-04-06 2023-05-09 合肥工业大学 Intelligent bookshelf and control method thereof

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CN108111755A (en) * 2017-12-20 2018-06-01 广东技术师范学院 A kind of recognition methods of picked angle of human body and device
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CN112861704A (en) * 2021-02-04 2021-05-28 开望(杭州)科技有限公司 Children writing analysis system and method based on sensor analysis and image processing
CN113080610A (en) * 2021-04-21 2021-07-09 付翠仙 Table and chair adjusting method and table and chair
CN113080610B (en) * 2021-04-21 2022-11-25 付翠仙 Table and chair adjusting method and table and chair
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CN116092129A (en) * 2023-04-06 2023-05-09 合肥工业大学 Intelligent bookshelf and control method thereof

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Application publication date: 20140709