CN202274306U

CN202274306U - Novel intelligent environment-friendly light-emitting diode (LED) light source

Info

Publication number: CN202274306U
Application number: CN2011203403788U
Authority: CN
Inventors: 李其昌; 逯兴莲
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2011-09-13
Filing date: 2011-09-13
Publication date: 2012-06-13
Anticipated expiration: 2021-09-13

Abstract

The utility model relates to a novel intelligent environment-friendly light-emitting diode (LED) light source. An LED lamp is welded onto a printed circuit board (PCB), the PCB and an aluminum plate are fixed together through thermally conductive adhesive, a diffuser is arranged at the front end of the LED lamp, and a controller collects current illumination and color temperature which are collected from an illumination sensor and a color sensor through a digital collector. After compared with internally-preset illumination and color temperature, the controller enables control signals to be converted through a digital multipleX 512 (DMX512) protocol and outputs the converted signals to an LED driver so as to perform feedback control on the illumination and the color temperature of the LED lamp, and a power supply supplies electricity to each functional module. The novel intelligent environment-friendly LED light source has the advantages of being light in weight, low in cost, self-adaptive to adjustment and the like, enables food to look more delicious and commodity to be more beautiful, simultaneously can achieve light dynamic scenes, has more dynamic in leisure places (such as coffee houses), and enables a whole lighting system to have more softness.

Description

A kind of novel intelligent led light source of environmental protection

Technical field

The utility model relates to a kind of lighting engineering, particularly a kind of novel intelligent led light source of environmental protection.

Background technology

Under environment global energy crisis, that environmental requirement improves constantly, long, energy-conservation, safety of life-span, environmental protection, rich color, microminiaturized semiconductor LED illumination have become the future thrust of lighting engineering.Now the LED lighting is at street lamp, traffic lights, and public lightings such as Tunnel Lamp seem more and more important in throwing light on consumption such as market illumination, office lighting, lighting of home, hotel's illumination, food and drink illumination, hospital's illumination, local-style dwelling houses illuminations.

Yet; The raising of Along with people's quality of the life; LED has also satisfied not people's demand as just common lighting source, and illumination intensity of light source and colour temperature have also been had concrete requirement, such as owing to night is different to people's influence with outdoor illumination on daytime; So indoor light source also should be different with the change of environment, reaches human optimum visual comfort level with this; Such as, child should be adjusted to the optimum to the protection vision to indoor illumination intensity of light source night especially when doing homework.Therefore a kind of illumination, colour temperature is adjustable, and led light source increasing demand that can Based Intelligent Control is outstanding.

Summary of the invention

The utility model is to the present people problem high to light source requirements, has proposed a kind of novel intelligent led light source of environmental protection, through control LED cool colour and warm colour ratio, photochromic temperature is regulated, and reaches needed indoor colour temperature and illumination.

The technical scheme of the utility model is: a kind of novel intelligent led light source of environmental protection; Comprise led light source and control system; Led light source comprises LED lamp, diffusing globe, pcb board, aluminium sheet; The LED lamp is welded on the pcb board, and pcb board is fixed together through heat-conducting glue and aluminium sheet, and the number LED lamp is combined; Whole LED lamp group front end has diffusing globe; The control system comprises LED driving, controller, digital collection device, DMX512 protocol controller, illuminance transducer, very color sensor, power supply, and current illumination and colour temperature that controller is gathered from illuminance transducer and very color sensor through the collection of digital collection device are after the illumination of controller and internal preset, the colour temperature contrast; Drive brightness and the colour temperature of LED lamp are carried out FEEDBACK CONTROL outputing to LED after the control signal conversion through the DMX512 protocol controller, power supply supplies power for each functional module.

Said illuminance transducer is the real-time monitoring of environmental illumination of GZD-V1; Said very color sensor is that MTSC-C2 monitors colour temperature in real time; Said DMX512 protocol controller is that LanBox-LCE DMX controller converts usb protocol to the DMX512 agreement, and 512 tunnel control delivery outlets are arranged; Said LED lamp is the LED of DS64 series, and whole LED lamp group is pressed the gentle warm colour temperature of cool colour and divided into groups.

The beneficial effect of the utility model is: the novel intelligent led light source of the utility model environmental protection, light, characteristics such as cost is low, self adaptation adjusting, so both can so that food seem more delicious, commodity are more beautiful.Simultaneously can realize the light dynamic scene, have more innervation in leisure place (like coffee shop), whole illuminator has more flexibility.

Description of drawings

Fig. 1 is the novel intelligent led light source structural representation of the utility model environmental protection;

Fig. 2 is the novel intelligent led light source control block diagram of the utility model environmental protection;

Fig. 3 is the novel intelligent led light source control program flow chart of the utility model environmental protection.

The specific embodiment

The novel intelligent led light source structural representation of environmental protection shown in Fig. 1, the light source front end adds diffusing globe 3, reduces dazzle greatly, the uniformity of very high whole lighting environment illumination makes whole lighting environment be in a comfortable luminous environment; In order to guarantee the LED luminous efficiency, heat radiation also is a key issue, and the light source of this illuminator adopts miniature pcb board 2; A slice PCB welds a LED; With heat-conducting glue 4 compact LED circuit and aluminium sheet 1 are fixed, utilized the characteristic of aluminium sheet 1 rapid heat dissipation, can solve heat dissipation problem preferably; With illuminance transducer and very color sensor MTCS-C2 the illumination and the colour temperature in underground store are monitored in real time, whole illuminator is in the self adaptation adjustment state of intelligence; Import the underground commercial center to sunshine, make full use of green energy resource, environmental protection and energy saving, LED replaces general light source, also is the major measure of green energy conservation.

Like the novel intelligent led light source control block diagram of Fig. 2 new green environment protection, the real-time monitoring of environmental illumination of illuminance transducer GZD-V1; Very color sensor MTSC-C2 monitors colour temperature in real time; Controller contrasts according to preset illumination, colour temperature and current illumination that monitors and colour temperature through the collection of digital collection device; Convert control signal to the DMX512 agreement through usb protocol after the contrast; Protocol controller output signal carries out negative-feedback control to driver to the LED of changes in temperature look, and specifically control procedure is referring to Fig. 3; Switching Power Supply 1 is the power supply of illuminance transducer GZD-V1 and digital collection device, and Switching Power Supply 2 is SP-240-30, for the work of LED provides stable voltage, plays the function of constant pressure source; LED group 1 ... LED group 6 is six groups of LED, and every group is 8 LED.Wherein 1,2,3 is warm colour, and 4,5,6 is cool colour; The DMX512 protocol controller is that LanBox-LCE DMX controller converts usb protocol to the DMX512 agreement, and DMX51; Protocol controller can be controlled 512 paths of LEDs simultaneously, so native system has high extensibility and soft property; Driver 1 and 2 is 3-Channel DMX512 Power LED Driver 350mA, to the DMX512 decoding, controls opening and closing of corresponding passage, is constant current 350mA with voltage transitions, realizes the efficient luminance of LED.

LED is controlled to be the DMX512 agreement, and with the electric current of the PWM of 160HZ control LED, the dutycycle of PWM is divided with numeral 0～255, and the luminous degree of LED is just determined by the digital quantity size.As the solar time, the daylight that imports in the basement is relatively more sufficient, LED luminescent decay then, and in the time of rainy day at cloudy day and evening, the luminous enhancing of LED.When detecting colour temperature when higher, reduce cold white light LEDs output, the output that improves warm white LED equilibrates to the colour temperature of requirement; When otherwise colour temperature is on the low side, improve the output of cold white light LEDs, reduce the output of warm white LED.

Operation labview program can be through guidance panel to the light source setup parameter, (the manually input of selected illumination (Flux) and colour temperature (CCT) input pattern;

Preset mode

1,2,3; 4 with self-defined pattern) below specify manual input mode; Other patterns are exactly that illumination and colour temperature change by the mode of pre-setting, and setup gives true value in the time of change, is equivalent to repeatedly the combination of manual input mode.

Program execution flow such as Fig. 3 are following: CCT1 and flux1 are preset color temperature and illumination; CCT2 and flux2 are very color sensor actual measurement colour temperature and illumination photometer illuminations actually measured; C and W are the digital control amount of cool colour and warm colour LED, P be cool colour with the digital control amount of warm colour LED than (C/W).

1, illumination and colour temperature are all selected manual input mode, click the Setup button then at the illumination flux1 and the colour temperature CCT1. of Input Flux and Input CCT input requirement, activate new input.

2, inquire about the ratio of cold white light LEDs and warm white LED: P=C/W according to colour temperature; Inquire the digital quantity W=C=NO that should export according to illumination.If W*P>C, W=C/P then, otherwise W=NO.

3, mobilize W and C to led controller respectively, read the color temperature value CCT2 of MTCS-C2, the value flux2 of illuminance transducer.

4, if flux1-flux2>flux1*5%, W=W+1 then, C=W*P, execution in step 6.< flux1*5%, W=W-1 then, C=W*P, execution in step 6 if flux1-flux2.

5, if CCT1-CCT2>150K, W=W-1 then, C=C+1, execution in step 6; < 150K, W=W+1 then, C=C-1, execution in step 6 if CCT1-CCT2.

6, if W>255 or C>255, W=255 or C=255 then; If | < ≤150K then exports=flux1*5%&&|CCT1-CCT2| flux1-flux2|: Find the requirement.

7, if setup and stop are false, execution in step 2. is vacation if setup is true stop, execution in step 1, if stop is true, and shut down procedure.

Claims

1. the novel intelligent led light source of an environmental protection is characterized in that, comprises led light source and control system; Led light source comprises LED lamp, diffusing globe, pcb board, aluminium sheet; The LED lamp is welded on the pcb board, and pcb board is fixed together through heat-conducting glue and aluminium sheet, and the number LED lamp is combined; Whole LED lamp group front end has diffusing globe; The control system comprises LED driving, controller, digital collection device, DMX512 protocol controller, illuminance transducer, very color sensor, power supply, and current illumination and colour temperature that controller is gathered from illuminance transducer and very color sensor through the collection of digital collection device are after the illumination of controller and internal preset, the colour temperature contrast; Drive brightness and the colour temperature of LED lamp are carried out FEEDBACK CONTROL outputing to LED after the control signal conversion through the DMX512 protocol controller, power supply supplies power for each functional module.

2. according to the novel intelligent led light source of the said environmental protection of claim 1, it is characterized in that said illuminance transducer is the real-time monitoring of environmental illumination of GZD-V1; Said very color sensor is that MTSC-C2 monitors colour temperature in real time; Said DMX512 protocol controller is that LanBox-LCE DMX controller converts usb protocol to the DMX512 agreement, and 512 tunnel control delivery outlets are arranged; Said LED lamp is the LED of DS64 series, and whole LED lamp group is pressed the gentle warm colour temperature of cool colour and divided into groups.