CN114413211B - Intelligent multimedia demonstration system - Google Patents
Intelligent multimedia demonstration system Download PDFInfo
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- CN114413211B CN114413211B CN202210089362.7A CN202210089362A CN114413211B CN 114413211 B CN114413211 B CN 114413211B CN 202210089362 A CN202210089362 A CN 202210089362A CN 114413211 B CN114413211 B CN 114413211B
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- 230000008859 change Effects 0.000 claims abstract description 18
- 238000013016 damping Methods 0.000 claims description 41
- 241001465382 Physalis alkekengi Species 0.000 claims description 11
- 230000004907 flux Effects 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 2
- 239000003550 marker Substances 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 34
- 208000003464 asthenopia Diseases 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 7
- 230000004379 myopia Effects 0.000 abstract description 2
- 208000001491 myopia Diseases 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 6
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
- F21V21/15—Adjustable mountings specially adapted for power operation, e.g. by remote control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/36—Hoisting or lowering devices, e.g. for maintenance
- F21V21/38—Hoisting or lowering devices, e.g. for maintenance with a cable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
- F21V23/0442—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors
- F21V23/0464—Arrangement of electric circuit elements in or on lighting devices the elements being switches activated by means of a sensor, e.g. motion or photodetectors the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention belongs to the technical field of multimedia, in particular to an intelligent multimedia presentation system, which comprises presentation equipment and an illumination module, wherein the illumination module further comprises: the device comprises a lamp, a positioning assembly, an ambient light sensor and a controller; when illumination intensity and brightness of classroom illumination change, the display effect of the multimedia device can be affected, if the display content is not clear, students need to watch the display content for a long time, visual fatigue is easy to be caused, and myopia is caused; therefore, the environment light sensors arranged at different positions of the indoor wall simulate the condition of observing the demonstration equipment at different positions in the indoor, and respectively detect the illuminance parameters at different positions in the teaching room, so that the illuminance of the local lamp is correspondingly adjusted, the balance of the illuminance of the indoor adjusted by the illumination module is enhanced, the visual fatigue of the demonstration equipment is relieved, and the use effect of the intelligent multimedia demonstration system is improved.
Description
Technical Field
The invention belongs to the technical field of multimedia, and particularly relates to an intelligent multimedia presentation system.
Background
The indoor illumination light environment and the display performance of the multimedia device have important influence on the demonstration effect of the multimedia and the vision health of observers, and have important significance by improving the indoor illumination light environment and providing a comfortable eye environment; currently, commonly used multimedia presentation products mainly comprise a projector curtain display system, an interactive electronic whiteboard and a liquid crystal display screen.
For the influence between the performance of the multimedia device and the ambient light, reference is made to Chen Yanni et al, multimedia device display performance detection and analysis in classroom light environment [ J ]. Chinese modern educational equipment, 2021 (22): 1-4: when illumination intensity and brightness of classroom illumination change, the display effect of the multimedia device can be affected, if the display content is unclear, students need to watch the display content for a long time, visual fatigue is easy to be caused, and myopia is caused. If the multimedia display brightness is too high, the difference between the display brightness and the surrounding brightness is too large, and the sight line moves back and forth between the high-brightness screen and the low-brightness desktop when students are in class, the retina cells can continuously change the working state, and the visual fatigue is also easily caused by adjusting the pupil size to adapt to brightness change.
Therefore, in order to solve the problem that visual fatigue is easily caused due to the difference between the display brightness of the intelligent multimedia presentation system and the display brightness of the multimedia equipment in different light environments, the invention provides an intelligent multimedia presentation system.
Disclosure of Invention
In order to solve the defects in the prior art, the intelligent multimedia presentation system provided by the invention is provided; through installing the ambient light sensor in the different positions of indoor wall body, simulate the condition of observing presentation equipment in indoor different positions, detect the illuminous parameter of different positions in the religion respectively, and then correspond the illuminous of adjustment local lamps and lanterns, strengthen the equilibrium of illumination in the illumination module adjustment room, alleviate visual fatigue when using presentation equipment to promote intelligent multimedia presentation system's result of use.
The invention relates to an intelligent multimedia demonstration system, which comprises demonstration equipment and a lighting module, wherein the demonstration equipment and the lighting module are respectively arranged on a wall body and a ceiling, and the lighting module further comprises:
the lamp is internally provided with a dimmer, and comprises a main lamp for lighting and an auxiliary lamp for supplementing light to the demonstration equipment;
the positioning component is fixedly arranged on the wall body around the demonstration equipment;
the ambient light sensors are respectively and fixedly arranged on the positioning assembly, and are used for detecting the illuminance of the running environment of the demonstration equipment, and the photosensitive elements of the ambient light sensors on the wall face the lamp or the demonstration equipment;
the controller is electrically connected with all elements of the lighting module through signal lines and is used for controlling the operation of the multimedia presentation system, the controller respectively adjusts the illuminance of the lamp at the corresponding position of each ambient light sensor according to the illuminance detected by a plurality of ambient light sensors, and the controller simultaneously reads the time information of the presentation equipment and adjusts the color temperature of the lamp.
Preferably, the positioning assembly comprises:
the damping slide rails are fixedly arranged on the wall body, and the length direction of the damping slide rails is perpendicular to the ground;
the damping slide block is slidably mounted on the damping slide rail, an ambient light sensor is fixedly mounted on the damping slide block, and a photosensitive element of the ambient light sensor on the damping slide block faces the demonstration device.
Preferably, an adjusting knob is fixedly arranged at the bottom end of the damping sliding rail and is electrically connected with an ambient light sensor on the damping sliding block, and the electric signal of the ambient light sensor is amplified or reduced by rotating the adjusting knob.
Preferably, an ambient light sensor is fixedly installed at the edge of the lampshade of the lamp, and the ambient light sensor faces the light source of the lamp.
Preferably, the top of lamps and lanterns still installs electric wire wheel, and electric wire wheel includes:
the wheel frame is fixedly arranged at the top end of the lamp;
the wheel disc is rotatably arranged on the wheel frame;
the motor is fixedly arranged on the wheel frame, a driving shaft of the motor is fixedly connected with the wheel disc, and the motor is electrically connected with the controller;
one end of the rope is wound and fixedly connected on the wheel disc, and the other end of the rope is fixed on the ceiling above the lamp.
Preferably, the top end of the rope is fixedly wound with a pulley block, and the pulley block is fixedly arranged on the ceiling.
Preferably, the controller groups illuminance data detected by the ambient light sensor in time period T, and calculates an average value of the illuminance data in time period TThen will->Illuminance data processed as a controller.
Preferably, the controller sequentially marks the illuminance data grouped in the period T as (T) 1 、T 2 ……T N ) And screening it, as 2|T x -T x-1 |＜|T y -T y-1 When I, T in the data is eliminated y And T y-1 。
Preferably, the controller adds a mark A to the illuminance data of the ambient light sensor of the main light area, and adds a mark B to the illuminance data of the ambient light sensor of the auxiliary light area, whenOr->When the controller controls the dimmer to increase the luminous flux of the lamp light source.
Preferably, the controller adds a mark C to the illuminance data of the ambient light sensor in the main light area, and when C is less than 300lx, the controller controls the electric wire wheel to operate so as to enable the lamp to reduce the height position relative to the wall body.
The beneficial effects of the invention are as follows:
1. according to the intelligent multimedia presentation system, the ambient light sensors arranged at different positions of the indoor wall body are used for simulating the condition of observing the presentation equipment at different positions in the indoor, the illuminance parameters at different positions in the teaching room are detected respectively, the illuminance of the local lamp is correspondingly adjusted, the balance of the illuminance of the indoor is adjusted by the illumination module, the visual fatigue during using the presentation equipment is relieved, and therefore the use effect of the intelligent multimedia presentation system is improved.
2. According to the intelligent multimedia presentation system, the damping slide rail and the damping slide block are arranged on the wall body, when multimedia equipment is presented, the ambient light sensor on the wall body is moved to the position which is level to the sight line height, the problem that illuminance adjustment is insufficient due to the change of the sight line height and the lamp distance in a ladder classroom is solved, the damping slide block with the height adjustable is arranged on the damping slide rail, the condition that light irradiated to the ambient light sensor is blocked by articles or people nearby the wall body is avoided, the ambient light sensor faces the presentation equipment, the sight line is watched by the simulation personnel, and the reality of illuminance detection is enhanced.
3. According to the intelligent multimedia presentation system, the heights of the lamps arranged at all positions in the ladder classroom relative to the wall body are changed through the arranged electric wire wheels, so that the distances between the lamps at all positions in the ladder classroom and the ground are kept equal, a balanced illuminance environment is created, the presentation equipment is convenient to watch, and visual fatigue is relieved.
4. According to the intelligent multimedia presentation system, after the change of illuminance data is detected through the ambient light sensor, the controller controls the motor to rotate, the coiled wire rope is loosened by the wheel disc, the position of the lamp relative to the wall body is lowered, the loosening length of the wire rope on the electric wire wheel is calculated through the controller according to the attenuation relation of light attenuation and inverse square of the distance by utilizing the illuminance attenuation value detected by the ambient light sensor, the illuminance reduction caused by the light source attenuation is compensated through reducing the light distance irradiated by the lamp, and the service life of the lamp light source is prolonged under the illuminance condition meeting the indoor illumination requirement.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic illustration of the present invention;
FIG. 2 is a perspective view of a lamp component of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a partial enlarged view at B in FIG. 1;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
FIG. 6 is a flow chart of the system of the present invention;
in the figure: 1. a presentation device; 2. a lamp; 3. an ambient light sensor; 4. damping slide rail; 41. damping slide blocks; 42. an adjustment knob; 5. a motor line wheel; 51. a wheel carrier; 52. a wheel disc; 53. a motor; 54. a string; 55. pulley block.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Embodiment one:
as shown in fig. 1 and 3, the intelligent multimedia presentation system of the present invention includes a presentation device 1 and a lighting module, wherein the presentation device 1 and the lighting module are respectively installed on a wall and a ceiling, and the lighting module further includes:
the lamp 2 is internally provided with a dimmer, and the lamp 2 comprises a main lamp for lighting and an auxiliary lamp for supplementing light to the demonstration device 1;
the positioning component is fixedly arranged on the wall body around the demonstration device 1;
the ambient light sensors 3 are fixedly arranged on the positioning assembly respectively, the ambient light sensors 3 are used for detecting illuminance of the running environment of the demonstration device 1, and photosensitive elements of the ambient light sensors 3 on the wall face the lamp 2 or the demonstration device 1;
the controller is electrically connected with each element of the lighting module through a signal wire and is used for controlling the operation of the multimedia presentation system, the controller respectively adjusts the illuminance of the lamp 2 at the corresponding position of each ambient light sensor 3 according to the illuminance detected by the plurality of ambient light sensors 3, and the controller simultaneously reads the time information of the presentation device 1, for example, the controller reads the time information of the computer or the electronic whiteboard operating system through a projector or an electronic whiteboard connected with the computer and adjusts the color temperature of the lamp 2;
when the device is used, the demonstration equipment 1 and the lighting module are started by the controller, the lighting module correspondingly controls the light modulator in the lamp 2 according to the detection value of the ambient light sensor 3, and the illuminance and the color temperature of the lamp 2 are changed, so that the ambient light in the teaching room approaches to the display brightness of the demonstration equipment 1, and students feel lower brightness difference when moving back and forth between the display image of the multimedia equipment and the desktop, and visual fatigue is relieved; when the outdoor natural illuminance is weakened/strong, real-time data of the detection value of the ambient light sensor 3 is received by the controller, the illuminance and the color temperature of the lamp 2 in the classroom are correspondingly reduced/improved under the condition of meeting the indoor illumination requirement, and the display brightness of the demonstration device 1 is synchronously reduced/increased, so that the indoor illumination fully utilizes the natural light;
according to the intelligent multimedia demonstration system, the positioning components fixedly arranged at different positions in the wall body are used for detecting indoor illuminance by the ambient light sensor 3 fixedly arranged on the wall body, when the multimedia equipment is operated, the controller is used for respectively reading the detection value of the ambient light sensor 3 and the time information of the demonstration equipment 1, correspondingly controlling the light modulator of each lamp 2 at each position in the classroom, changing the illuminance and the color temperature of the lamps 2, enabling the illumination environment to be close to natural light under the condition of meeting the indoor illumination requirement, simulating the condition of observing the demonstration equipment 1 at different positions in the room by using the ambient light sensor 3 arranged at different positions in the indoor wall body, respectively detecting the illuminance parameters at different positions in the classroom, correspondingly adjusting the illuminance of the local lamps 2, enhancing the balance of the illumination module for adjusting the indoor illuminance, and slowing down the visual fatigue when the demonstration equipment 1 is used, thereby improving the use effect of the intelligent multimedia demonstration system.
As an embodiment of the present invention, the positioning assembly includes:
the damping slide rails 4 are fixedly arranged on the wall, and the length direction of the damping slide rails 4 is perpendicular to the ground;
the damping slide block 41 is slidably arranged on the damping slide rail 4, the damping slide block 41 is fixedly provided with the ambient light sensor 3, and a photosensitive element of the ambient light sensor 3 on the damping slide block 41 faces the demonstration device 1;
when the sight heights are different, such as the demonstration device 1 is watched in a stair classroom, the distances between the lamps 2 at different indoor positions and the sight lines are different, so that the illuminance difference is caused; through damping slide rail 4 and damping slider 41 that set up on the wall body, when carrying out multimedia device demonstration, remove the ambient light sensor 3 on the wall body to the position with sight height parallel and level, reduce the problem that produces the illuminance adjustment inadequately because of sight height and lamps and lanterns 2 range change in the ladder classroom, and the damping slider 41 of adjustable height on damping slide rail 4, avoid shining the condition that the light to ambient light sensor 3 is sheltered from by the article or the personnel near the wall body, and make ambient light sensor 3 towards demonstration equipment 1, detect the illuminance data of receipt at the measuring point of indoor different positions, simulate personnel's viewing position, strengthen the authenticity of detecting illuminance.
As an embodiment of the present invention, an adjusting knob 42 is fixedly installed at the bottom end of the damping slide rail 4, the adjusting knob 42 is electrically connected with the ambient light sensor 3 on the damping slide block 41, and the electrical signal of the ambient light sensor 3 is amplified or reduced by rotating the adjusting knob 42; the outdoor natural light irradiates indoors, illuminance influenced by the natural light at different indoor positions is different, the ambient light sensor 3 is difficult to accurately simulate human eyes, through the adjusting knob 42 arranged at the bottom end of the damping sliding rail 4, the adjusting knob 42 is a rotary rheostat and is connected into a circuit of the ambient light sensor 3, the ambient light sensor 3 generates currents with different magnitudes according to illuminance intensity through photosensitive elements in the ambient light sensor 3, illuminance data corresponding to different current values are recognized through a controller, after the demonstration device 1 is started, according to personnel feel of watching the demonstration device 1 at different indoor positions, the adjusting knob 42 is operated to change the resistance value of the illuminance data, current signals detected by the corresponding ambient light sensor 3 are enhanced or weakened, the illuminance of a lamp 2 at the corresponding position is actively adjusted, and visual fatigue of a viewer at the corresponding position is further slowed down.
Embodiment two:
as shown in fig. 1, 2, 4, and 5, the edge of the lampshade of the lamp 2 is also fixedly provided with an ambient light sensor 3, and the ambient light sensor 3 faces to the light source of the lamp 2: after the lamp 2 for illumination is operated for a long time, the light source of the lamp can be aged to cause the attenuation of illuminance, even the illuminance condition lower than the indoor illumination requirement, so that the visual fatigue is caused; through setting up the ambient light sensor 3 that detects the light source on lamps and lanterns 2 to detect its illuminance data through the controller, when factors such as the light source ageing lead to illuminance inadequately, when the illuminance data that ambient light sensor 3 detected like lamp shade position of lamps and lanterns 2 is less than 500lx, send the warning to the operating system of presentation equipment 1 through the controller, if show on the computer or the electronic whiteboard that the projector is connected, make operating personnel know the condition that illuminance inadequately, renew the light source of lamps and lanterns 2 and handle, keep the illuminance condition of presentation equipment 1 operational environment, reduce the visual fatigue who produces.
As an embodiment of the present invention, an electric wire wheel 5 is further mounted on the top end of the lamp 2, and the electric wire wheel 5 includes:
the wheel frame 51 is fixedly arranged at the top end of the lamp 2;
a wheel disc 52, the wheel disc 52 being rotatably mounted on the wheel frame 51;
the motor 53, the motor 53 is fixedly installed on the wheel frame 51, the driving shaft of the motor 53 is fixedly connected with the wheel disc 52, and the motor 53 is electrically connected with the controller;
a rope 54, one end of the rope 54 is wound and fixedly connected on the wheel disc 52, and the other end of the rope 54 is fixed on the ceiling above the lamp 2;
when the demonstration device 1 is used in a ladder classroom, as the heights of the ceiling of the ladder classroom and the ground at different positions are different, the heights of the lamps 2 arranged at each position in the ladder classroom relative to the wall body are changed through the arranged electric wire wheels 5, so that the distances between the lamps 2 at each position in the ladder classroom and the ground are kept equal, a balanced illuminance environment is created, the demonstration device 1 is convenient to watch, and visual fatigue is relieved; the electric wire wheel 5 is installed on the lamp, the existing hanging point on the ceiling can be utilized to install the wire rope 54, the field construction required when the electric wire wheel 5 is fixed on the ceiling is avoided, the light source of the lamp 2 can be attenuated after running for a long time, after the change of illuminance data is detected through the ambient light sensor 3, the controller controls the motor 53 to rotate, the wheel disc 52 is enabled to unwind the wound wire rope 54, the position of the lamp 2 relative to the wall is lowered, the illuminance attenuation value detected through the ambient light sensor 3, namely, the illuminance data detected through the ambient light sensor 3 on the lamp 2 is gradually lowered to below 500lx along with the increase of the illumination duration of the lamp 2, the loosening length of the wire rope 54 on the electric wire wheel 5 is calculated through the controller according to the attenuation relation of the inverse square of the illuminance attenuation and the distance, the illuminance reduction caused by the attenuation of the light source is compensated through the reduction of the light distance irradiated by the lamp 2, and the service life of the light source of the lamp 2 is prolonged under the condition that the indoor illumination requirement is met.
As an embodiment of the present invention, a pulley block 55 is fixedly connected to the top end of the rope 54 in a winding manner, and the pulley block 55 is fixedly installed on the ceiling; when the electric wire wheel 5 operates to change the height position of the lamp 2 relative to the wall, as the lamp 2 and the electric wire wheel 5 are self-weighted, the motor 53 needs to have enough torque for lifting the lamp 2, and high-precision control needs to be met under the driving of the controller, when the motor 53 drives the wheel disc 52 to rotate through the pulley block 55 arranged on the pulley block 54, when the height position of the lamp 2 relative to the wall is adjusted, the length of the pulley block 54 needs to be changed when the pulley block 55 is increased to adjust the height of the lamp 2, for example, when the stepping precision of the motor 53 corresponds to the lifting distance of the pulley block 54 to be 10mm, a movable pulley is used in the pulley block 55, the stepping precision of the lamp 2 at the tail end of the pulley block 54 is lifted to be 5mm, the control precision of the height position of the lamp 2 is enhanced, the driving force required by adjusting the lamp 2 is reduced by using the labor-saving function of the pulley block 55, the torque required by the motor 53 for driving the wheel disc 52 is reduced, and the torque required by the motor 53 is reduced under the operating condition that the electric wire wheel 5 is met.
As an embodiment of the present invention, the controller groups illuminance data detected by the ambient light sensor 3 in time period T and calculates an average value of the illuminance data in time period TThen will->Illuminance data processed as a controller; the illuminance variation detected by the single ambient light sensor 3 is easily received by the roomEffects of the internal environment, such as light shining towards the ambient light sensor 3 being blocked by nearby objects or moving personnel; by grouping the illuminance data read in the controller in time period T, by using the time of grouping the illuminance data by the controller, the control information is sent to the dimmer with a delay, the sensitivity of the dimmer to the instant change of the illuminance value detected by the ambient light sensor 3 is reduced, and by calculating the average value of the illuminance data in time period T ∈>The dimmer is controlled, the adjusting frequency of the dimmer is reduced, the lamp 2 keeps a stable illuminance state, the fluctuation of the illuminance of the lamp 2 adjusted by the dimmer is reduced, and the visual fatigue caused by the severe change of light is relieved.
As one embodiment of the present invention, the controller sequentially marks illuminance data grouped in the period T as (T) 1 、T 2 ……T N ) And screening it, as 2|T x -T x-1 |＜|T y -T y-1 When I, T in the data is eliminated y And T y-1 The method comprises the steps of carrying out a first treatment on the surface of the The method includes the steps that abnormal interference items in data are removed by screening illuminance data read in a controller, in illuminance data grouped in a time period T, when the two times of the absolute value of the difference between any two adjacent illuminance data are smaller than the absolute value of the difference between any two adjacent illuminance data, the fact that the difference between the two adjacent illuminance data is larger is indicated, namely, the fluctuation of illuminance detected by an ambient light sensor 3 is larger, the change of the ambient illuminance at the moment is more likely to be caused by unnatural factors, for example, light received by the ambient light sensor 3 is influenced, the fluctuation of the illuminance data with larger fluctuation in the time period T is reduced by removing the illuminance data with larger fluctuation in the time period T, the processing precision of the illuminance data of the controller is improved, and therefore the change of illuminance of a lamp 2 is promoted to approach to ambient light, and the generation of visual fatigue is delayed.
As one embodiment of the present invention, the controller adds a mark a to illuminance data of the ambient light sensor 3 of the main light area, and the controller adds a mark a to the ambient light of the auxiliary light areaThe illuminance data of the photosensor 3 is marked with a mark B whenOr->When the controller controls the dimmer to increase the luminous flux of the light source of the lamp 2; when the demonstration device 1 is used, the illuminance of the main lamp for indoor illumination and the illuminance of the auxiliary lamp for supplementing light to the demonstration device 1 are detected respectively, the ambient light sensors 3 at different positions of the wall are utilized to simulate illuminance data when people watch the demonstration device 1 or a desktop in a sight line, the distance between each position on the wall and the demonstration device 1 is larger than the distance between the sight line of a viewer and the demonstration device 1, so that the illuminance data detected at the position of the wall is inferior to the illuminance data of the sight line of the viewer, namely, the controller controls the dimmer according to the detected illuminance data of A or B, and the condition of indoor illumination requirements is met.
As one embodiment of the invention, the controller adds a mark C to the illuminance data of the ambient light sensor 3 in the main light area, and when C is less than 300lx, the controller controls the electric wire wheel 5 to operate so as to enable the lamp 2 to lower the height position relative to the wall body; after the controller controls the dimmer to change the luminous flux of the main lamp, when the illuminance data C is still smaller than 300lx, the light source of the main lamp is insufficient to provide enough illuminance conditions, at the moment, the controller drives the motor 53 in the electric wire wheel 5 to loosen the wire rope 54 wound on the wheel disc 52 at the top end of the lamp 2, the position of the lamp 2 relative to the wall is lowered, namely, the distance between the light source of the lamp 2 and the ambient light sensor 3 is reduced to compensate the insufficient illuminance data, the requirement that the illuminance is larger than 300lx when a person watches the demonstration device 1 is met, the problem that the illuminance is insufficient due to aging of the light source of the lamp 2 is solved, and the service life of the lamp 2 is prolonged.
The specific working procedure is as follows:
the indoor illumination is detected by the ambient light sensor 3 fixedly arranged on the wall body through the positioning components at different positions, when the multimedia equipment operates, the detection value of the ambient light sensor 3 and the time information of the demonstration equipment 1 are respectively read through the controller, the light modulator of each position lamp 2 in the classroom is correspondingly controlled, the illumination and the color temperature of the lamps 2 are changed, the illumination environment is close to natural light under the condition of meeting the indoor illumination requirement, the condition of observing the demonstration equipment 1 at different positions in the room is simulated by the ambient light sensor 3 arranged at different positions of the indoor wall body, the illumination parameters at different positions in the room are respectively detected, the illumination of the local lamps 2 is correspondingly adjusted, the balance of the illumination of the indoor illumination is enhanced by the illumination module, and the visual fatigue caused by using the demonstration equipment 1 is relieved; the damping slide rail 4 and the damping slide block 41 are arranged on the wall, when multimedia equipment demonstration is carried out, the ambient light sensor 3 on the wall is moved to a position which is level to the sight line height, the problem of insufficient illuminance adjustment caused by the change of the distance between the sight line height and the lamp 2 in a ladder classroom is reduced, the damping slide block 41 with the height adjustable is arranged on the damping slide rail 4, the condition that the light irradiated to the ambient light sensor 3 is blocked by articles or people near the wall is avoided, the ambient light sensor 3 faces the demonstration equipment 1, the received illuminance data is detected at measuring points at different indoor positions, the watching position of the personnel is simulated, and the reality of the illuminance of the detected light is enhanced; the environment light sensor 3 for detecting the light source is arranged on the lamp 2, the illuminance data of the environment light sensor is detected through the controller, when the illuminance is insufficient due to factors such as aging of the light source, for example, when the illuminance data detected by the environment light sensor 3 at the lamp shade position of the lamp 2 is less than 500lx, a prompt is sent to an operating system of the demonstration device 1 through the controller, for example, the environment light sensor is displayed on a computer or an electronic whiteboard connected with a projector, so that an operator knows the condition of insufficient illuminance, the light source of the lamp 2 is replaced, the illuminance condition of the operation environment of the demonstration device 1 is maintained, and the generated visual fatigue is reduced; the height of the lamps 2 arranged at each position in the ladder classroom relative to the wall body is changed by the arranged electric wire wheels 5, so that the distances between the lamps 2 at each position in the ladder classroom and the ground are kept equal, an balanced illuminance environment is created, the demonstration equipment 1 is convenient to watch, and visual fatigue is relieved; and the light source of lamps and lanterns 2 can produce the decay after long-time operation, detect the change of illuminance data through ambient light sensor 3, the controller controls motor 53 to rotate, make rim plate 52 loosen the cotton rope 54 of coiling, make the position of lamps and lanterns 2 relative to the wall body drop, and utilize ambient light sensor 3 to detect the illuminance decay value, calculate the length that electric wire wheel 5 goes up cotton rope 54 and loosen according to the decay relation of light decay and inverse square of distance through the controller, compensate the illuminance reduction that the light source attenuation led to through reducing the light distance that lamps and lanterns 2 shined, under the illuminance condition that satisfies indoor illumination requirement, the life of lamps and lanterns 2 light source is prolonged.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an intelligent multimedia presentation system, includes presentation equipment (1) and lighting module, and presentation equipment (1) and lighting module are installed respectively on wall body and ceiling, its characterized in that, lighting module still includes:
the light fixture (2) is internally provided with a light modulator, and the light fixture (2) comprises a main lamp for lighting and an auxiliary lamp for supplementing light to the demonstration equipment (1);
the positioning component is fixedly arranged on the wall body around the demonstration device (1);
the environment light sensors (3) are respectively and fixedly arranged on the positioning assembly, and the environment light sensors (3) are used for detecting illuminance of the running environment of the demonstration device (1);
the controller is electrically connected with each element of the lighting module through a signal wire and is used for controlling the operation of the multimedia presentation system;
the positioning assembly includes:
the damping slide rails (4) are fixedly arranged on the wall body, and the length direction of the damping slide rails (4) is perpendicular to the ground;
the damping slide block (41), the damping slide block (41) is slidably mounted on the damping slide rail (4), and the damping slide block (41) is fixedly provided with an ambient light sensor (3);
an adjusting knob (42) is fixedly arranged at the bottom end of the damping sliding rail (4), the adjusting knob (42) is electrically connected with an ambient light sensor (3) on the damping sliding block (41), and an electric signal of the ambient light sensor (3) is amplified or reduced by rotating the adjusting knob (42);
when the sight heights are different, the demonstration device (1) is watched in a stair classroom, and the distances between lamps (2) at different indoor positions and the sight lines are different, so that the difference of illuminance is caused; through damping slide rail (4) and damping slider (41) that set up on the wall body, when carrying out multimedia equipment demonstration, remove ambient light sensor (3) on the wall body to the position with sight height parallel and level, reduce in the ladder classroom because of sight height and lamps and lanterns (2) range change produce the problem that illuminance regulation is not enough.
2. An intelligent multimedia presentation system according to claim 1, characterized in that the edge of the lamp shade of the luminaire (2) is also fixedly provided with an ambient light sensor (3), the ambient light sensor (3) being directed towards the light source of the luminaire (2).
3. An intelligent multimedia presentation system according to claim 2, characterized in that the top end of the luminaire (2) is also fitted with an electric wire wheel (5), the electric wire wheel (5) comprising:
the wheel frame (51), the wheel frame (51) is fixedly arranged at the top end of the lamp (2);
the wheel disc (52), the wheel disc (52) is rotatably installed on the wheel frame (51);
the servo motor (53) is fixedly arranged on the wheel frame (51), a driving shaft of the servo motor (53) is fixedly connected with the wheel disc (52), and the servo motor (53) is electrically connected with the controller;
and one end of the rope (54) is wound and fixedly connected on the wheel disc (52), and the other end of the rope (54) is fixed on the ceiling above the lamp (2).
4. An intelligent multimedia presentation system according to claim 3, wherein a pulley block (55) is fixedly connected to the top end of the cord (54) in a winding manner, and the pulley block (55) is fixedly mounted on the ceiling.
5. An intelligent multimedia presentation system according to claim 1, wherein the controller groups the illuminance data detected by the ambient light sensor (3) in time period T, and calculates an average 〒 of the illuminance data in time period T and then treats 〒 as illuminance data for the controller.
6. The intelligent multimedia presentation system of claim 5, wherein the controller marks the illuminance data grouped in the period T as (T1, T2 … … TN) in sequence and screens them, and rejects Ty and Ty-1 in the data when 2|tx-Tx-1| < |ty-Ty-1|.
7. The intelligent multimedia presentation system according to claim 6, wherein the controller adds a flag a to the illuminance data of the ambient light sensor (3) of the main light area, and adds a flag B to the illuminance data of the ambient light sensor (3) of the auxiliary light area, and the controller controls the dimmer to increase the luminous flux of the light source of the lamp (2) when 〒 a <3001x or 〒 B <5001 x.
8. An intelligent multimedia presentation system according to claim 5, wherein the controller adds a marker C to the illuminance data of the ambient light sensor (3) of the main light area, and when C <300 lx, the controller controls the electric wire wheel (5) to operate so that the lamp (2) is lowered in height position relative to the wall.
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| CN104541578A (en) * | 2012-03-19 | 2015-04-22 | 数字照明股份有限公司 | Methods, systems, and apparatus for providing variable illumination |
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| CN113669699A (en) * | 2021-09-23 | 2021-11-19 | 中山市慕兰五金灯饰有限公司 | Telescopic lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104541578A (en) * | 2012-03-19 | 2015-04-22 | 数字照明股份有限公司 | Methods, systems, and apparatus for providing variable illumination |
| CN108012125A (en) * | 2017-12-25 | 2018-05-08 | 成都壹橙科技有限公司 | A kind of guide tracked Agricultural Monitoring equipment installation mechanism |
| CN108870301A (en) * | 2018-05-07 | 2018-11-23 | 江苏大显科技有限公司 | A kind of imitative ultraphotic area regards environment classroom illumination system and its control method naturally |
| CN112288978A (en) * | 2020-10-23 | 2021-01-29 | 温州丰彩生态农业科技有限公司 | Sunflower is planted and is used theftproof monitoring device based on big data processing |
| CN113669699A (en) * | 2021-09-23 | 2021-11-19 | 中山市慕兰五金灯饰有限公司 | Telescopic lamp |
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| CN114413211A (en) | 2022-04-29 |
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