CN103791240B - A kind of medical treatment Intelligent Laser shadow-free illumination system - Google Patents

A kind of medical treatment Intelligent Laser shadow-free illumination system Download PDF

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CN103791240B
CN103791240B CN201410053197.5A CN201410053197A CN103791240B CN 103791240 B CN103791240 B CN 103791240B CN 201410053197 A CN201410053197 A CN 201410053197A CN 103791240 B CN103791240 B CN 103791240B
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light source
light
illumination
work surface
lamp body
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CN103791240A (en
Inventor
魏英智
韩巍
张琳
李社
任敦亮
田雪松
丁红伟
刘辉
王丰
徐宝玉
张晓兰
张春静
康为民
李海宝
姜洪喜
尹向宝
杨明珠
母丽华
王建国
金永君
高朝阳
关宇东
孙惠杰
谢念湘
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Heilongjiang University of Science and Technology
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Heilongjiang University of Science and Technology
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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Abstract

The present invention relates to a kind of medical treatment Intelligent Laser shadow-free illumination system, it includes illumination optical unit, illumination optical detection unit, machine assembly and electric control unit, and wherein, described illumination optical unit includes fixed light source group and compensatory light group; Described illumination optical detection unit includes CCTV camera and image processing module; Described machine assembly includes lamp body, column and swing arm unit; Described electric control unit includes photographing module, computer control module and light source driver module. The present invention solves shadowless lighting problem by the intelligent compensation of illumination detection system, it may be achieved uniform-illumination distribution, shadow-free, illumination and colour temperature continuously adjustabe. Breaching and cannot realize intelligent adjustable problem according to human-eye visual characteristic, solving the visual fatigue problem that operative doctor works long hours, thus being effectively improved surgical quality.

Description

A kind of medical treatment Intelligent Laser shadow-free illumination system
Technical field
The present invention relates to shadowless lighting, the medical Intelligent Laser shadow-free illumination system of the more superior surgical light effect of a kind of offer is be provided.
Background technology
Operation shadowless lamp is used to the indispensable visual plant in illumination surgical position, it is desirable to can clearly observe and be in the object that in otch and cavity, different depth, size and contrast are low. Owing to the operation head of Shi doctor, hands and apparatus are all likely to operative site is interfered shade, and color distortion is preferably minimized degree. Meanwhile, shadowless lamp must also for a long time continuous firing and keep low temperature state.
International, domestic at present have a lot of research about operation shadowless lamp and diagnosis illumination, great power LED has been successfully applied to the aspect such as surgery operating lamp, medical examination, although the colour temperature that existing product preferably resolves the existence of traditional medical lighting engineering is non-adjustable, the more high limitation problem of temperature rise, also the problems such as the encapsulation of great power LED, constant-current driving, heat radiation and illumination control are successfully solved technically, the Multi-regulation of shadowless lamp illumination can be realized, light modulation flexibly, conveniently, but still cannot realize intelligent adjustable according to human-eye visual characteristic. If the operating time is long, then wound surface cannot be realized optimal illumination, make clinician that visual fatigue to occur, produce presbyopia phenomenon, impact is produced for operation and diagnosis.
In view of drawbacks described above, creator of the present invention obtains this creation finally through research for a long time and practice.
Summary of the invention
It is an object of the invention to provide a kind of medical treatment Intelligent Laser shadow-free illumination system, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the present invention provides a kind of medical treatment Intelligent Laser shadow-free illumination system, and it includes illumination optical unit, illumination optical detection unit, machine assembly and electric control unit, wherein,
Described illumination optical unit includes fixed light source group and compensatory light group, and described fixed light source group makes the light of light source outgoing uniformly project on work surface, and realizes higher degree without shadow; The effect of described compensatory light group is when there being shelter, makes the indexs such as the shadow region brightness at compensation work surface place, colour temperature, color rendering properties reach the best visual effect;
Described illumination optical detection unit includes CCTV camera and image processing module, described illumination optical detection unit catches the change of the brightness of work surface place and colour temperature by described CCTV camera, by described pattern process module, the picture collected is analyzed, determine the brightness at work surface place, the light source controlling described compensatory light group zones of different carries out luminance compensation, and then realizes the closed loop control of work surface place brightness uniformity;
Described machine assembly includes lamp body, column and swing arm unit, and described lamp body arranges described illumination optical unit and illumination optical detection unit, lamp body and swing arm unit described in described upright supports, and described swing arm unit controls described lamp body and does multi-angle rotary motion;
Described electric control unit includes photographing module, computer control module and light source driver module, and described photographing module catches image video signal; The effect of described computer control module is by simple computation interface, system to be controlled; The effect of described light source driver module is to drive LED light source, changes LED light output and reaches uniform-illumination distribution, shadow-free.
Further, described fixed light source group includes 81 little LED lamp cup, and the angle of inclination of each Lamp cup is determined according to Lamp cup present position;
The light source of described compensatory light group is divided into different regions, different according to the angle of inclination of the characteristic light fixture in different light filling regions;
Described illumination optical detection unit is positioned at the marginal position of opticator, divides equally detection work surface region.
Further, described fixed light source group includes fixed light source and fixation reflex Lamp cup, and the rim of a cup diameter of described reflection light cup is 40mm, and the reflector angle of emergence is 13.7 ��, and quadratic curvature is-1.6, and radius of curvature is 38mm.
Wherein, according to formula (1), radiation of light source luminous flux is calculated,
��=p*��*n(1)
Wherein: p is the output of single source,
�� is the light efficiency of 3WLED light source, ��=98,
N is the number of fixed light source group fixed light source, n=81.
It is ��=18954lm through calculating the output light flux of light source;
Calculate fixed light source according to formula (2) and project the luminous flux at work surface place,
��2=��*��1*��2(2)
Wherein: ��1For the angle utilization rate of LED light source, by analysis, calculate, design, ��1=0.5, ��2For the light efficiency utilization rate of light fixture, determine �� through optical design2=0.4,
It is �� through calculating the output light flux of light source2=3791lm;
Calculate fixed light source according to formula (3) and project the luminous flux at work surface place,
E=��2/S(3)
Wherein: ��2For the luminous flux that work surface place receives;
S be work surface area, it is 200mm��600mm that work surface is sized to diameter;
It is 1.3 ten thousand lx��120,000 lx through calculating receiving plane place illumination range.
Further, described compensatory light group includes 36 compensatory lights of the same race, and compensatory light includes compensatory light, compensatory reflex Lamp cup two parts composition, and wherein: described reflector diameter is 40mm, quadratic curvature is-1.1, and radius of curvature is 37mm.
Further, described illumination optical detection unit adopts four described CCTV cameras, work surface is divided into a region, the diameter in each region is 70mm, the distance at detection video camera distance work surface place is 1m, and it is 8 degree that above-mentioned Size calculation goes out the monitoring visual field of CCTV camera, and described CCTV camera is that elimination collects receiving plane place illumination precision, plus a piece of optical filter being consistent with light fixture output spectrum before video camera, to provide the acquisition precision of video camera; CCTV camera is by the picture transfer that collects to image processing module, and compensatory light is controlled by it according to the characteristic collecting image.
Further, described column includes adjusting pipe and supervisor, and described swing arm unit includes turning arm, crossbeam and counter-jib, and the two ends of described turning arm are respectively connecting to the rear and front end of described lamp body; One end of described crossbeam is connected to outside the center of described turning arm, and the other end of described crossbeam is connected with the side of described counter-jib, and described adjustment pipe is connected between described counter-jib and supervisor; Described base is arranged on the bottom of described supervisor, to support whole mechanical part.
Further, described supervisor is directly installed on base, holding screw fix;Described adjustment pipe is arranged on supervisor by holding screw, and the top of described adjustment pipe is connected with counter-jib.
Further,
Described swing arm unit, there is rotary joint lamp body and turning arm junction, can relatively rotate 35 �� with lamp body diameter for rotating shaft; There is cradle head turning arm and crossbeam junction, can relatively rotate 150 �� around crossbeam axis; Crossbeam rotates around described column, rotates 180 �� centered by the axis of column; Each rotary joint has antivibrator, adjusts corresponding locking knob, changes the damping force of lamp body and each articulation.
Further, described lamp body includes handle, main light source group and compensates LED, whole shadowless lamp total group high brightness White LED fixed light source, and often group is made up of 9 LED; For making medical treatment Intelligent Laser shadowless lamp illumination distribution more uniform, it is additionally provided with 36 great power LED compensatory lights; It is provided with air-cooling device and heat dissipation channel at lamp body top, lamp body is carried out heat convection.
Further, described photographing module includes four video cameras, and described computer control module includes industrial computer, display, four road video frequency collection cards and road analog output card; Described light source driver module includes the adjustable LED light source adjustment module of 0-10V analogue signal.
The beneficial effects of the present invention is compared with prior art: the intelligence that medical treatment Intelligent Laser shadow-free illumination system of the present invention integrates in conjunction with human-eye visual characteristic can the innovative technology such as conditioning technology, shooting Closed loop Control, laser dot-matrix developing technology, laser dot-matrix combination illumination technology, heat dissipation technology, driving power supply, manostat and control technology; Realize by adopting video sensor technology to realize the closed loop control of system, it is achieved that colour temperature, illumination, high accuracy is accurately adjustable, makes colour temperature, illumination stability be guaranteed; Visual characteristic in conjunction with clinician's human eye realizes intelligent control technology; Shadowless lighting problem is solved, it may be achieved uniform-illumination distribution, shadow-free, illumination and colour temperature continuously adjustabe by the intelligent compensation of illumination detection system. Breaching and cannot realize intelligent adjustable problem according to human-eye visual characteristic, solving the visual fatigue problem that operative doctor works long hours, thus being effectively improved surgical quality.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of medical treatment Intelligent Laser shadow-free illumination system of the present invention;
Fig. 2 is medical treatment Intelligent Laser shadow-free illumination system opticator plane structure chart of the present invention;
Fig. 3 is the structural representation of fixed light source group of the present invention;
Fig. 4 is the structural representation of mechanical part of the present invention;
Fig. 5 is the structural representation of lamp body of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, to the present invention, above-mentioned and other technical characteristic and advantage are described in more detail.
During medical treatment Intelligent Laser shadow-free illumination system of the present invention work, by cameras capture image video signal, and it is stored in industrial computer and is analyzed process. Analog output card, by the data after output optical analog process, converts analogue signal to and passes to controllable LED constant-current source. Make working region colour temperature by the output of LED constant current source, illumination, more stable, be simultaneously achieved colour temperature, illumination, illumination region on a large scale, high accuracy is accurately adjustable, reaches optimum visual, illuminating effect.
Referring to shown in Fig. 1 the functional block diagram that it be medical treatment Intelligent Laser shadow-free illumination system of the present invention, this system includes illumination optical unit 11, illumination optical detects unit 12, machine assembly 13 and electric control unit 14,
Wherein, described illumination optical unit 11 includes fixed light source group 111 and compensatory light group 112, and the effect of described fixed light source group 111 is that the light realizing LED light source outgoing uniformly projects on work surface, and realizes higher degree without shadow;The effect of described compensatory light group is when there being shelter, makes the indexs such as the shadow region brightness at compensation work surface place, colour temperature, color rendering properties reach the best visual effect.
Described illumination optical detection unit 12 includes CCTV camera 121 and image processing module 122, described illumination optical detection unit 12 catches the change of the brightness of work surface place and colour temperature by described CCTV camera 121, by described pattern process module 122, the picture collected is analyzed, determine the brightness at work surface place, the light source controlling described compensatory light group 112 zones of different carries out luminance compensation, and then realizes the closed loop control of work surface place brightness uniformity.
Referring to shown in Fig. 2, it is medical treatment Intelligent Laser shadow-free illumination system opticator plane structure chart of the present invention,
In the present embodiment, described fixed light source group 111 includes 81 little LED lamp cup, and the angle of inclination of each Lamp cup is determined according to Lamp cup present position; The light source of described compensatory light group 112 is divided into different regions, different according to the angle of inclination of the characteristic light fixture in different light filling regions. Described illumination optical detection unit 12 is positioned at the marginal position of opticator, divides equally detection work surface region.
In use procedure, doctor clicks light source output class according to the variety classes of operation, and fixed light source group controller controls the colour temperature of fixed light source group according to instruction, to reach to realize best operation color developing effect. In surgical process, the shade that illumination detection unit 12 detects doctor's part of limb and surgical device blocks, it is analyzed processing to gathering image, determining that light filling needs position and the light filling amplitude of light filling, shade is carried out light filling with the light filling speed comparing mitigation by the compensatory light controlling relevant position. Do not occur that significantly bright, the dark and obvious color rendering properties of illumination place changes and cause impact very greatly to doctor's vision.
Refer to shown in Fig. 3, it is the structural representation of fixed light source group of the present invention, in the present invention, described fixed light source group includes fixed light source and fixation reflex Lamp cup, the rim of a cup diameter of described reflection light cup is 40mm, the reflector angle of emergence is 13.7 ��, and quadratic curvature is-1.6, and radius of curvature is 38mm.
Wherein light source selects Ou Silang 3WLED light source, light efficiency parameter: 78Lm/W, and colour temperature is 6500K, color rendering properties 80, according to formula (1), radiation of light source luminous flux is calculated,
��=p*��*n(1)
Wherein: p is the output of single source,
�� is the light efficiency of 3WLED light source, ��=98,
N is the number of fixed light source group fixed light source, n=81.
It is ��=18954lm through calculating the output light flux of light source.
Calculate fixed light source according to formula (2) and project the luminous flux at work surface place,
��2=��*��1*��2(2)
Wherein: ��1For the angle utilization rate of LED light source, by analysis, calculate, design, ��1=0.5,
��2For the light efficiency utilization rate of light fixture, determine �� through optical design2=0.4,
It is �� through calculating the output light flux of light source2=3791lm��
Calculate fixed light source according to formula (3) and project the luminous flux at work surface place,
E=��2/S(3)
Wherein: ��2For the luminous flux that work surface place receives.
S be work surface area, it is 200mm��600mm that work surface is sized to diameter.
Being 1.3 ten thousand lx��120,000 lx through calculating receiving plane place illumination range, the illuminance through calculating receiving plane place meets design objective requirement. It is 33 DEG C that calculating obtains light source output face temperature.
Described compensatory light group 112 includes 36 compensatory lights of the same race, and compensatory light is made up of compensatory light, compensatory reflex Lamp cup two parts, and structure chart is as shown in Figure 4.Through calculating, analyzing. Last compensatory light design result is: reflector diameter is 40mm, and quadratic curvature is-1.1, and radius of curvature is 37mm.
Light source choose be according in operation process shade illuminance compensation determine, in operation process, if hands launch cause block as diameter phi 70mm, the illumination of receiving area is 0lx, due to the light filling optical characteristics of compensatory light, the shooting angle of compensatory light is only small, and light collimation is high. Receiving plane is divided into 4 regions by the present invention, and each region has 9 light sources to carry out light filling. The light source that we adopt is Ou Silang 5WLED light source, and light efficiency parameter: 78Lm/W, colour temperature is 4300K��7000K, color rendering properties 75��80. The output light flux calculating 9 LED light sources according to above-mentioned formula (1) is 3510lm, calculating, according to formula (2), the luminous flux projecting to compensatory zone is 702lm, after calculating compensation according to formula (3), the illumination of shadow region is 18.2 ten thousand lx, consider that compensatory light is also blocked by shelter, the shaded coefficient of compensatory light is 0.2 by shelter, and after calculating compensation, the illumination of shaded side is 3.64 ten thousand lx. The detection system illumination according to the image detection shaded side collected, realizes the uniform of work surface place light distribution by the number and power controlling light compensating lamp.
Described illumination optical detection unit 12 adopts four described CCTV cameras 121, work surface is divided into 4 regions, the diameter in each region is 70mm, the distance at detection video camera distance work surface place is 1m, the monitoring visual field going out CCTV camera according to above-mentioned Size calculation is 8 degree, CCTV camera 121 collects receiving plane place illumination precision for elimination, plus a piece of optical filter being consistent with light fixture output spectrum before video camera, to provide the acquisition precision of video camera. CCTV camera 121 is by the picture transfer that collects to image processing module 122, and compensatory light is controlled by it according to the characteristic collecting image.
Described CCTV camera 121, adopt 752*582 resolution camera, minimal illumination detects 0.001lx, utilize illumination to take into account standard light source and video camera is carried out irradiance calibration, illumination meter precision is 2.5%, video camera self error 3.5%, standard light source output accuracy is 3%, and the overall display precision of illumination is 9%.
Refer to shown in Fig. 4, it is the structural representation of mechanical part of the present invention, it includes camera head 1, operation panel 2, lamp body 3, turning arm 4, crossbeam 5, counter-jib 6, adjusts pipe 7, supervisor 8 and base 9, described adjustment pipe 7 and supervisor 8 composition column, turning arm 4, crossbeam 5 and counter-jib 6 constitute swing arm unit.
Described camera head 1 is arranged on the front end of described lamp body 3, and described operation panel 2 is arranged on the upper end of described lamp body 3; The two ends of described turning arm 4 are respectively connecting to the rear and front end of described lamp body 3; One end of described crossbeam 5 is connected to outside the center of described turning arm 4, and the other end of described crossbeam 5 is connected with the side of described counter-jib 6, and described adjustment pipe is connected between described counter-jib 6 and supervisor 8; Described base 9 is arranged on the bottom of described supervisor 8, to support whole mechanical part.
Described lamp body 3 makes multi-angle and changes thus changing the shooting angle of light source, substantially increases the motility of surgical apparatus; Turning arm 4 side is connected with lamp body 3, and opposite side is connected with crossbeam 5, and whole turning arm 4 adjusts freely, stablizes, delicate structure, it is possible to adjust differing heights and angle meets requirement of performing the operation.Described adjustment pipe 7 and supervisor 8, play the effect supporting lamp body.
Described supervisor 8 is directly installed on base 9, holding screw fix; Described adjustment pipe 7 is arranged on supervisor 8 by holding screw, and the top of described adjustment pipe 7 is connected with counter-jib 6. Described column both plays the effect supporting lamp body, plays away again the effect of spool, power supply and control circuit and passes therethrough and be connected with lamp body. Column adopts subsection connecting structure to be both readily transported, and is easy to again circuit and connects and maintenance.
Described swing arm unit, there is rotary joint lamp body 3 and turning arm 4 junction, can relatively rotate 35 �� with lamp body 3 diameter for rotating shaft; Also there is cradle head turning arm 4 and crossbeam 5 junction, can relatively rotate 150 �� around crossbeam 5 axis; Crossbeam 5 can rotate around described column, rotates 180 �� centered by the axis of column; Each rotary joint has antivibrator, adjusts corresponding locking knob, can change lamp body and the damping force of each articulation. Adjust the antivibrator on counter-jib 6, the damping force that lamp body 3 moves up and down can be changed, make lamp body move lightly, positioning stablity; Antivibrator is to provide the device of the resistance of motion, depletion kinergety. Allow to relatively rotate when two connectors rotate low speed, play the effect of buffer shock-absorbing; The locking when speed or acceleration exceed corresponding value, forms rigid support; Therefore antivibrator unexpectedly can guarantee that and operates steadily reliably, plays again the effect of safety lock; Whole rocking arm adjustment freely, stable, delicate structure, meet the needs of differing heights and angle in operation.
Described base 9 includes bearing, protective cover and roller devices, and all component weight of described shadow-free illumination system are born by base 9, Gu base should have certain intensity, and need to ensure the stability of whole shadowless lamp; Described roller devices, at rest base, can freely roll; Roller devices and lamp socket junction are adjustable roller height, and making adjustment pipe 7 and supervisor's 8 axis is that plumb line is to ensure that lamp body steadily moves freely; Protective cover, below base, in turn ensure that while playing protection electric elements medical treatment Intelligent Laser shadowless lamp profile is succinct, attractive in appearance.
Referring to shown in Fig. 5, it is the structural representation of lamp body of the present invention, and described lamp body 3 includes handle 41, main light source group 42 and compensates LED43, and whole shadowless lamp has 9 groups of high brightness White LED fixed light sources, and often group is made up of 9 LED. For making medical treatment Intelligent Laser shadowless lamp illumination distribution more uniform, it is additionally provided with 36 great power LED compensatory lights. For preventing lamp intimate heat meltdown wiring insulation from causing short circuit, damaging LED light source, it is provided with air-cooling device and heat dissipation channel at lamp body top, lamp body is carried out heat convection, to effectively reduce system thermal resistance, make medical treatment Intelligent Laser shadowless lamp normal operation, it is ensured that patient safety.
Camera head is arranged on below lamp body, is formed by four photographic head are uniform altogether. Each photographic head is connected support and is universal connection with lamp body, swingable, to ensure photographic head alignment operative site, thus closer to operative doctor sensation target. Operative doctor, by adjusting photographic head angle, makes camera head carry out data acquisition exactly, to ensure medical treatment Intelligent Laser shadowless lamp illuminating effect intellectuality adjustment. Control panel is similarly installed on lamp body cylinder, can do 180 �� of rotations around right angle setting axle. Its direction of operative doctor adjustable, operates in operation to facilitate.
Described electric control unit 4 includes photographing module 41, computer control module 42 and light source driver module 43, and described photographing module 41 catches image video signal; The effect of described computer control module 42 is by simple computation interface, system to be controlled; The effect of described light source driver module 43 is to drive LED light source, changes LED light output and reaches uniform-illumination distribution, shadow-free.
Described photographing module 41 includes four video cameras, and described computer control module 42 includes industrial computer, display, four road video frequency collection cards and 36 road analog output cards; Described light source driver module 43 includes the adjustable LED light source adjustment module of 0-10V analogue signal.
The present invention adopts the dynamic adjustable mode of DC light source supply current, and the control voltage that computer provides determines that it exports, and described analog output unit output voltage to have high output resolution ratio, and output resolution ratio is 14 D/A, span of control 0��10V. And constant current output module is the adjustable linear power supply of precision DC, it is achieved LINEAR CONTINUOUS stepless changing.
The operation principle that light filling closed loop regulates is after 81 fixed light sources start normal operation, 4 video cameras are taken pictures, store current picture intensity profile figure as this template, when performing the operation, staff or other objects enter camera field of view, now staff or other objects block fixed light source and project the light of operating-table, video camera real-time monitoring images grey scale change also compares with template, 36 light compensating lamp number consecutivelies are controlled by PC program, accept the controlled adjustment of 36 road analog output cards respectively, if there is the shadow region blocked, closed loop control is proceeded by according to optical model PC program.
The effect of 4 road video frequency collection cards is the collection television camera image video signal when test carries out, and is stored in industrial computer and is analyzed process. The effect of analog output card is by the data after optical model processes, and becomes analogue signal and passes to controllable LED constant-current source.
Described video frequency collection card can gather image by the various ways such as continuous show, even frame, several, interval or several frames; Can stably receive video signal, support in uniform machinery, how soon board works simultaneously.
Described analog output card set output voltage as: �� 10V, �� 5V, 0��10V, 0��5V or 4��20mA, 0��20mA fills current loop. The apolegamy that multi output form is LED dimmer provides big selection space. Native system, for needing 37 analog output channels, adopts Liang Kuai 16 road analog output and 1 piece of 4 road analog output.
Described industrial computer and corresponding control software design constitute control and data processing centre, its coordination completing native system each several part and the control of native system, and operator can pass through the UI Preferences parameter of control software design, sends instruction. Utilize corresponding software interface, real-time by the every bit gray count of each image out, industrial computer records gray scale test figure that during startup, video camera shoots under certain regulation illumination as template, the gray value of every bit on image is calculated during the work of follow-up beginning light filling, the relatively gray value of the different gray areas of gray scale test figure, utilizes the algorithm that optical model sets up can the brightness adjusting 36 light compensating lamps quickly and colour temperature.
The simulation results of shelter is added by analyzing medical treatment Intelligent Laser shadow-free illumination system, it is very many without shadow degree height that medical treatment Intelligent Laser shadow-free illumination system compares single led illuminator, equal shelter shaded area decreases 35%, and the brightness of shaded side improves 25%, through relative analysis, medical treatment Intelligent Laser shadow-free illumination system without shadow effect apparently higher than single led light source.
By medical treatment Intelligent Laser shadow-free illumination system add shelter, do not add shelter and add shelter light filling distribution curve of illumination contrast may determine that, medical treatment Intelligent Laser shadow-free illumination system light filling effect obvious. After light filling, the illumination at receiving plane place is the highest can reach 3.64 ten thousand more than lx.
The intelligence that medical treatment Intelligent Laser shadow-free illumination system of the present invention integrates in conjunction with human-eye visual characteristic can the innovative technology such as conditioning technology, shooting Closed loop Control, laser dot-matrix developing technology, laser dot-matrix combination illumination technology, heat dissipation technology, driving power supply, manostat and control technology; Realize by adopting video sensor technology to realize the closed loop control of system, it is achieved that colour temperature, illumination, high accuracy is accurately adjustable, makes colour temperature, illumination stability be guaranteed; Visual characteristic in conjunction with clinician's human eye realizes intelligent control technology; Shadowless lighting problem is solved, it may be achieved uniform-illumination distribution, shadow-free, illumination and colour temperature continuously adjustabe by the intelligent compensation of illumination detection system. Breaching and cannot realize intelligent adjustable problem according to human-eye visual characteristic, solving the visual fatigue problem that operative doctor works long hours, thus being effectively improved surgical quality.
The foregoing is only presently preferred embodiments of the present invention, invention is merely illustrative, and nonrestrictive. Those skilled in the art is understood, and it can be carried out many changes in the spirit and scope that invention claim limits, amendment, even equivalence, but falls within protection scope of the present invention.

Claims (8)

1. a medical Intelligent Laser shadow-free illumination system, it is characterised in that it includes illumination optical unit, illumination optical detection unit, machine assembly and electric control unit, wherein,
Described illumination optical unit includes fixed light source group and compensatory light group, and described fixed light source group makes the light of light source outgoing uniformly project on work surface, and realizes higher degree without shadow; The effect of described compensatory light group is when there being shelter, makes the indexs such as the shadow region brightness at compensation work surface place, colour temperature, color rendering properties reach the best visual effect;
Described illumination optical detection unit includes CCTV camera and image processing module, described illumination optical detection unit catches the change of the brightness of work surface place and colour temperature by described CCTV camera, by described pattern process module, the picture collected is analyzed, determine the brightness at work surface place, the light source controlling described compensatory light group zones of different carries out luminance compensation, and then realizes the closed loop control of work surface place brightness uniformity;
Described machine assembly includes lamp body, column and swing arm unit, and described lamp body arranges described illumination optical unit and illumination optical detection unit, lamp body and swing arm unit described in described upright supports, and described swing arm unit controls described lamp body and does multi-angle rotary motion;
Described column includes adjusting pipe and supervisor, and described swing arm unit includes turning arm, crossbeam and counter-jib, and the two ends of described turning arm are respectively connecting to the rear and front end of described lamp body; One end of described crossbeam is connected to outside the center of described turning arm, and the other end of described crossbeam is connected with the side of described counter-jib, and described adjustment pipe is connected between described counter-jib and supervisor; Described base is arranged on the bottom of described supervisor, to support whole mechanical part;
Described swing arm unit, there is rotary joint lamp body and turning arm junction, can relatively rotate 35 �� with lamp body diameter for rotating shaft;There is cradle head turning arm and crossbeam junction, can relatively rotate 150 �� around crossbeam axis; Crossbeam rotates around described column, rotates 180 �� centered by the axis of column; Each rotary joint has antivibrator, adjusts corresponding locking knob, changes the damping force of lamp body and each articulation;
Described electric control unit includes photographing module, computer control module and light source driver module, and described photographing module catches image video signal; The effect of described computer control module is by simple computation interface, system to be controlled; The effect of described light source driver module is to drive LED light source, changes LED light output and reaches uniform-illumination distribution, shadow-free.
2. medical treatment Intelligent Laser shadow-free illumination system according to claim 1, it is characterised in that described fixed light source group includes 81 little LED lamp cup, and the angle of inclination of each Lamp cup is determined according to Lamp cup present position;
The light source of described compensatory light group is divided into different regions, different according to the angle of inclination of the characteristic light fixture in different light filling regions;
Described illumination optical detection unit is positioned at the marginal position of opticator, divides equally detection work surface region.
3. medical treatment Intelligent Laser shadow-free illumination system according to claim 2, it is characterised in that described fixed light source group includes fixed light source and fixation reflex Lamp cup, the rim of a cup diameter of described reflection light cup is 40mm, and the reflector angle of emergence is 13.7 ��, and quadratic curvature is-1.6, radius of curvature is 38mm
Wherein, according to formula (1), radiation of light source luminous flux is calculated,
��=p* �� * n (1)
Wherein: p is the output of single source,
�� is the light efficiency of 3WLED light source, ��=98,
N is the number of fixed light source group fixed light source, n=81.
It is ��=18954lm through calculating the output light flux of light source;
Calculate fixed light source according to formula (2) and project the luminous flux at work surface place,
��2=�� * ��1*��2(2)
Wherein: ��1For the angle utilization rate of LED light source, by analysis, calculate, design, ��1=0.5,
��2For the light efficiency utilization rate of light fixture, determine �� through optical design2=0.4,
It is �� through calculating the output light flux of light source2=3791lm;
Calculate fixed light source according to formula (3) and project the luminous flux at work surface place,
E=��2/S(3)
Wherein: ��2For the luminous flux that work surface place receives;
S be work surface area, it is 200mm��600mm that work surface is sized to diameter;
It is 1.3 ten thousand lx��120,000 lx through calculating receiving plane place illumination range.
4. medical treatment Intelligent Laser shadow-free illumination system according to claim 2, it is characterized in that, described compensatory light group includes 36 compensatory lights of the same race, compensatory light includes compensatory light, compensatory reflex Lamp cup two parts composition, wherein: described reflector diameter is 40mm, quadratic curvature is-1.1, and radius of curvature is 37mm.
5. medical treatment Intelligent Laser shadow-free illumination system according to claim 2, it is characterized in that, described illumination optical detection unit adopts four described CCTV cameras, work surface is divided into a region, the diameter in each region is 70mm, the distance at detection video camera distance work surface place is 1m, it is 8 degree that above-mentioned Size calculation goes out the monitoring visual field of CCTV camera, described CCTV camera is that elimination collects receiving plane place illumination precision, plus a piece of optical filter being consistent with light fixture output spectrum before video camera, to provide the acquisition precision of video camera;CCTV camera is by the picture transfer that collects to image processing module, and compensatory light is controlled by it according to the characteristic collecting image.
6. medical treatment Intelligent Laser shadow-free illumination system according to claim 1, it is characterised in that described supervisor is directly installed on base, holding screw fix; Described adjustment pipe is arranged on supervisor by holding screw, and the top of described adjustment pipe is connected with counter-jib.
7. medical treatment Intelligent Laser shadow-free illumination system according to claim 1, it is characterised in that described lamp body includes handle, main light source group and compensates LED, and whole shadowless lamp has 9 groups of high brightness White LED fixed light sources, and often group is made up of 9 LED; For making medical treatment Intelligent Laser shadowless lamp illumination distribution more uniform, it is additionally provided with 36 great power LED compensatory lights; It is provided with air-cooling device and heat dissipation channel at lamp body top, lamp body is carried out heat convection.
8. the medical Intelligent Laser shadow-free illumination system according to Claims 2 or 3, it is characterised in that described photographing module includes four video cameras, described computer control module includes industrial computer, display, four road video frequency collection cards and road analog output card; Described light source driver module includes the adjustable LED light source adjustment module of 0-10V analogue signal.
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