CN105813261A - Indoor anti-glare intelligent lighting system and adjustment method thereof - Google Patents
Indoor anti-glare intelligent lighting system and adjustment method thereof Download PDFInfo
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- CN105813261A CN105813261A CN201610240899.3A CN201610240899A CN105813261A CN 105813261 A CN105813261 A CN 105813261A CN 201610240899 A CN201610240899 A CN 201610240899A CN 105813261 A CN105813261 A CN 105813261A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
Abstract
The invention discloses an indoor anti-glare intelligent lighting system, which comprises an ambient lamp, a main light lamp, a controller, a main light sensor and an ambient light sensor, wherein the controller is in controllable connection with the ambient lamp and the main light lamp; the main light sensor is used for detecting the light-emitting brightness of the main light lamp; the ambient light sensor is used for detecting the light-emitting brightness of the ambient lamp; and the main light sensor and the ambient light sensor are in communication connection with the controller respectively. According to the indoor anti-glare intelligent lighting system, whether a glare condition appears in current lighting or not is monitored in real time according to a UGR evaluation standard; and anti-glare detection on an indoor LED lamp is achieved. Adjustment control is carried out by a PID controller; the contrast of the light source lighting brightness and the ambient background light brightness is close to a stable value; and a UGR is smaller than a URG threshold of generating glare, so that the glare is prevented. Due to the structure, the lighting system is simple in structure; the measurement cost is low; the integration degree is high; the indoor LED lamp with relatively high lighting requirements can be conveniently controlled; and the lighting system has wide application value and market prospect.
Description
Technical field
The present invention relates to Inner-lighting Technology field, particularly relate to a kind of indoor anti-dazzle intelligent illuminating system and control method thereof.
Background technology
Dazzle is a kind of discomfort that produces, or reduces the ability seeing main target, or both bad visual environments of having concurrently.By the luminance difference of unfavorable Luminance Distribution great disparity in the visual field, or in space or time upper extreme contrast cause.According to the difference to visual impact, dazzle is divided into makes us the discomfort glare that eye feels under the weather and disability glare two class causing human eye vision inferior capabilities.
For overcoming discomfort glare, Chinese patent CN204100151 discloses a kind of UGR front light emitting plane lamp less than 19, including backboard and aluminium section bar, backboard outer rim arranges flanging, and aluminium section bar includes profile base, and flanging is arranged in profile base in the flanging groove of setting, backboard is fixed with aluminium base, arranging LED on aluminium base, the bottom inside of profile base is provided with the ladder platform of extension, and diffuser plate is arranged on ladder platform.
Although above-mentioned patent passes through aluminium section bar appropriate design, optimize anti-dazzle performance at least in laboratory conditions, but, when particular user end is for room lighting, the putting of furniture, outdoor optical the condition such as power all do not consider wherein, this still can produce the luminance difference of luminance part great disparity, causes that glare phenomenon exists.
Summary of the invention
It is an object of the invention to for the technological deficiency existed in prior art, and a kind of indoor anti-dazzle intelligent illuminating system is provided.
Be the technical scheme is that by realizing the purpose of the present invention
A kind of indoor anti-dazzle intelligent illuminating system, including ambient light, key light lamp and the controller that be connected controlled with described ambient light and key light lamp, also include the key light sensor detecting key light lamp luminosity, in order to detect the ambient light sensor of ambient light luminosity, described key light sensor and ambient light sensor are connected with described controller communication respectively.
Described ambient light and key light lamp respectively LED, described controller is controlled with the driving module of described LED to be connected.
Described key light lamp and the ambient light left and right overall light fixture of integrally disposed composition, described key light lamp wiring sensor is arranged on below key light lamp and detects obliquely downward to the brightness going out light, and described ambient light sensor is arranged on immediately below overall light fixture center.
Described controller includes PWM controller and PID controller, and described controller is single-chip microcomputer.
The control method of a kind of described indoor anti-dazzle intelligent illuminating system, comprises the following steps,
1) controller calculates the UGR value in work at present district according to the sensing value of key light sensor and ambient light sensor,
2) if UGR value is less than or equal to setting value, then carry out next step, if UGR value is more than setting value, if the ambient brightness that now ambient light sensor detects is more than default high threshold, then to be supplied to the brightness of illumination of people inadequate for key light lamp, namely strengthens the brightness of key light lamp to reduce UGR value until less than or equal to setting value；If the ambient brightness that now ambient light sensor detects less than default Low threshold, then weakens the brightness of key light lamp to reduce UGR value until less than or equal to setting value；
3) after delay predetermined time interval, repeat to continue step 1).
Described step 2) in based on PID control principle carry out UGR value regulate.
The setting value of described UGR value is 16-17.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention monitors when whether front lit dazzle situation occurs according to UGR evaluation criterion in real time, realize the detection to indoor LED lamp anti-dazzle, native system adopts PID controller to be adjusted controlling, realize light source brightness of illumination and environmental background brightness contrast tends towards stability value, and UGR value is producing below dazzle UGR threshold value, thus realizing preventing the generation of dazzle.Due to the fact that employing said structure, the simple in construction of this illumination system device, the cost of measurement is low, and integration degree is high, it is convenient to the indoor LED lamp that lighting requirement is higher is controlled.Have a wide range of applications and market prospect.
Accompanying drawing explanation
Fig. 1 show the structural representation of the indoor anti-dazzle intelligent illuminating system of the present invention；
Fig. 2 show use state schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, 2, the indoor anti-dazzle intelligent illuminating system of the present invention includes ambient light, key light lamp and the controller that be connected controlled with described ambient light and key light lamp, also include the key light sensor detecting key light lamp luminosity, in order to detect the ambient light sensor of ambient light luminosity, described key light sensor and ambient light sensor are connected with described controller communication respectively, separately also include power module and crystal oscillator module etc..
Specifically, key light sensor and two sensors of ambient light sensor are all mounted on light fixture, ambient light and key light lamp are preferably integrated light fixture, both can be the designs such as tiled configuration, regional local lighting can be carried out with key light lamp, remainder can be carried out auxiliary environment illumination and be advisable by ambient light, the position of two sensors and sensing are different, light sensor is mounted in the obliquely downward of key light lamp, there is an angle of the sensing obliquely downward of inclination to point to and mainly to set working region, such as desk position, ambient light sensor is mounted in the center lower surface of whole integrated light fixture, two sensor material objects are all only small, can fix or perhaps be integrated in LED.Two sensors are the outer surfaces being separately positioned on lamp, receive, by the lead-in wire of sensor, the controller that LED bosom embeds, as on single-chip microcomputer, it is achieved the communication of sensor and controller.Communication modes: two is pass through I between sensor and single-chip microcomputer2C communication protocol carries out communication.Wherein, it is to be noted, the ambient light of the present invention and key light lamp can take the mode being respectively provided with, i.e. both are separatedly installed and carry out that communication is controlled to be connected respectively with controller, the purpose of the present invention can be realized equally, and, the quantity of key light lamp and environment light can optionally arbitrarily be arranged, such as multiple key light lamps and multiple ambient light etc., carry out unified scheduling controlling, can guarantee that the illuminating effect of the best.
Lighting standard according to GB50043-2004, the UGR value of the room lighting majority employings 19 such as office, as being comfortable on and uncomfortable boundary value, can make observer not feel well, have obvious dazzle to produce when namely UGR value is more than 19.For the present invention, when specifically installing, setting angle can be adjusted according to indoor arrangement, the eyes of user are just pointed in the detection direction making key light sensor, simultaneously as the light modulation that controller controls is preferably minimized glare effects, namely regulate and control in UGR value below 16, much smaller than discomfort glare boundary value 19, if even if the position installed slightly offsets, without reality being produced dazzle or excessive deviation, namely the standard that performs is installed and also be can guarantee that the illumination of reality does not have dazzle, substantially increases the uniformity of properties of product and construction.
Preferably, described ambient light and key light lamp respectively LED, described controller is controlled with the driving module of described LED to be connected.Described controller includes PWM controller and PID controller.PWM controller is the very effective technology of one utilizing the numeral output of microprocessor that analog circuit is controlled, it is widely used in from measuring, communicate power control and many fields such as conversion and LED illumination, it can the brightness of convenient adjustment key light lamp and ambient light, it is achieved the purpose of anti-dazzle of the present invention.
The control method of the indoor anti-dazzle intelligent illuminating system of the present invention, comprises the following steps,
1) controller calculates the UGR value in work at present district according to the sensing value of key light sensor and ambient light sensor, calculates and adopts normalized form (1) to carry out,
In formula, Lb: for background luminance (cd/m2)；
La: for the brightness (cd/m of each light source luminescent part in observer's eyes direction2)；
ω: the solid angle (sr) that observer's eyes are formed by each light source luminescent part；
P: Gu Si (Guth) location index of each light source.
Wherein: UGR value is the CIE a kind of appraisal of glare index improved on the comprehensive various countries appraisal of glare method basis with formula, i.e. " type unified glare evaluation ", it is the light that the illuminator in Visual Environment sends human eye is caused discomfort a kind of evaluation methodology, wherein, La、LbMeasuring with luminance meter in routine, key light sensor and ambient light sensor are creatively dissolved in light fixture by the present invention, and a monoblock type light fixture is divided into two independent key light lamps controlled and environment light modulation so that it is can automatically detect and dim.The present invention detects L with sensora、Lb.Wherein, LaIt is the light source brightness of illumination that detects of light sensor, LbFor the detected value of environmental sensor, ω and P is same as the prior art, in this not reinflated description.Further, user inputs the height of this LED installation, face height, the input of equidistant parameter by remote control machine or control panel, and controller can realize automatic regulation function.
Specifically, two sensors have two types, are numeric type and analogue type respectively.What numeric type sensor detected is illumination, and in formula, the amount of being is brightness, so needing to carry out the conversion between illumination and brightness；The magnitude of voltage that analogue type sensor measures, is become correspondence can be gone out brightness value by the magnitude of voltage detected.And, the linear degree of brightness value, that is, sensor detection is C respectively, the value that D is 2, and it is desirable that the brightness value of standard points A and B 2 in above-mentioned formula, known AC, the distance of BD point-to-point transmission, then can be converted out by the two amount, concrete as, measure standard points C point and the value of standard points D point with luminance meter simultaneously, then its relation of matching, the such as value of A point is the distance that C point value is multiplied by between AC point, such two sensor sensing value can be converted, and combine and bring above-mentioned formula into after the distance process of fitting treatment of standard points.La, Lb refer respectively to the brightness value of A, B 2.Wherein Lb can be calculated by D point illumination (or brightness) and illumination (or brightness) inverse proportion law, and La can be calculated by brightness (or illumination) value of brightness (or illumination) with brightness (or illumination) relation and C point.
2) if UGR value is less than or equal to 16, then carry out next step, if UGR value is more than 16, if the ambient brightness that now ambient light sensor detects is more than default high threshold, then to be supplied to the brightness of illumination of people inadequate for key light lamp, namely strengthens the brightness of key light lamp to reduce the value of UGR until less than or equal to 16；If the ambient brightness that now ambient light sensor detects less than default Low threshold, then weakens the brightness of key light lamp to reduce the value of UGR until less than or equal to 16；Wherein, adjustment process carries out the adjustment of LED brightness based on PWM method, and control process carries out UGR control based on PID control principle.PID controller is adopted to be adjusted controlling, realize light source brightness of illumination and environmental background brightness contrast tends towards stability value, PID controller is by proportional unit P, integral unit I and differentiation element D composition, pass through Kp, the setting of three parameters of Ki and Kd, the data collected and a reference value are compared, then this difference for calculating new input value, the purpose of this new input value is to allow the data of system reach or be maintained at reference value, thus realizing system stability to keep optimal illumination comfort level, and regulate process smooth steady, reduce sudden change, improve comfort；
3) after delay predetermined time interval, repeat to continue step 1).
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. an indoor anti-dazzle intelligent illuminating system, it is characterized in that, including ambient light, key light lamp and the controller that be connected controlled with described ambient light and key light lamp, also include the key light sensor detecting key light lamp luminosity, in order to detect the ambient light sensor of ambient light luminosity, described key light sensor and ambient light sensor are connected with described controller communication respectively.
2. indoor anti-dazzle intelligent illuminating system as claimed in claim 1, it is characterised in that described ambient light and key light lamp respectively LED, described controller is controlled with the driving module of described LED to be connected.
3. indoor anti-dazzle intelligent illuminating system as claimed in claim 1 or 2, it is characterized in that, described key light lamp and the ambient light left and right overall light fixture of integrally disposed composition, described key light lamp wiring sensor is arranged on below key light lamp and detects obliquely downward to the brightness going out light, and described ambient light sensor is arranged on immediately below overall light fixture center.
4. indoor anti-dazzle intelligent illuminating system as claimed in claim 1 or 2, it is characterised in that described controller includes PWM controller and PID controller, and described controller is single-chip microcomputer.
5. the control method of the indoor anti-dazzle intelligent illuminating system as described in any one of claim 1-4, it is characterised in that comprise the following steps,
1) controller calculates the UGR value in work at present district according to the sensing value of key light sensor and ambient light sensor,
2) if UGR value is less than or equal to setting value, then carry out next step, if UGR value is more than setting value, if the ambient brightness that now ambient light sensor detects is more than default high threshold, then to be supplied to the brightness of illumination of people inadequate for key light lamp, namely strengthens the brightness of key light lamp to reduce UGR value until less than or equal to setting value；If the ambient brightness that now ambient light sensor detects less than default Low threshold, then weakens the brightness of key light lamp to reduce UGR value until less than or equal to setting value；
3) after delay predetermined time interval, repeat to continue step 1).
6. control method as claimed in claim 5, it is characterised in that described step 2) in carry out UGR adjustment based on PID control principle.
7. control method as claimed in claim 5, it is characterised in that the setting value of described UGR value is 16-17.
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| CN201610240899.3A CN105813261B (en) | 2016-04-18 | 2016-04-18 | Indoor anti-dazzle intelligent illuminating system and its adjusting method |
| CN201810008372.7A CN108282915B (en) | 2016-04-18 | 2016-04-18 | The adjusting method of indoor anti-dazzle intelligent illuminating system |
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Cited By (2)
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| CN109982476A (en) * | 2017-12-13 | 2019-07-05 | 松下知识产权经营株式会社 | Illumination control apparatus, lighting control system and illumination control method |
| TWI667942B (en) * | 2018-04-25 | 2019-08-01 | 映興電子股份有限公司 | Illumination sensing method for smart lighting |
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| CN111586948A (en) * | 2020-06-11 | 2020-08-25 | 四川艾贝斯科技发展有限公司 | Automatic classroom illumination monitoring method |
| CN112729534B (en) * | 2020-12-04 | 2023-08-22 | 西安理工大学 | Environment glare monitoring control system for museum showcase |
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| Publication number | Publication date |
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| CN108282915A (en) | 2018-07-13 |
| CN108282915B (en) | 2019-06-11 |
| CN105813261B (en) | 2018-02-16 |
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