CN103533724A - Communication-controlled LED dimming light - Google Patents

Abstract

The invention relates to a communication-controlled LED dimming light. The communication-controlled LED dimming light comprises a master control module (1), a communication module (2), an upper computer (3), a key module (4), a display module (5), a drive module (6), an LED light set (7) and a power module (8), wherein the upper computer (3) is connected with the communication module (2), the communication module (2), the key module (4), the display module (5), the drive module (6) and the power module (8) are connected with the master control module (1), and the LED light set (7) is connected with the drive module (6). The brightness of the LED light is controlled by dividing an irradiation area into nine areas which are distributed annularly from inside to outside for respective control, an illumination adjusting mode comprises key adjustment and upper computer adjustment, the brightness of the light is uniform in the irradiation area, and requirements of people can be met.

Description

Control on Communication LED desk lamp with dimmer switch

Technical field

The present invention relates to a kind of Control on Communication LED desk lamp with dimmer switch, is a kind ofly can to the different demands of intensity of illumination, change arbitrarily illumination according to field of employment specifically, and the uniform light fixture of brightness in irradiation area, belongs to energy-saving LED lamp control field.

Background technology

Along with science and technology and social progress, the application of the lighting of the advantages such as LED is this has long working life, low-power consumption, the response time is fast, volume is little, lightweight, resistance to resistance, tunable optical, toning, environmental protection is also more and more extensive.But traditional LED control mode is all just confined to the adjusting of button or knob, if will carry out while light modulation to a large amount of LED lamps, can only regulate in turn, so not only lose time, and efficiency is not high, operates extremely inconvenient.And operation can make button or knob damage frequently, thereby uncontrollable, severe patient light fixture cannot be used has to change new lamp, has caused the waste of resource.Traditional LED is generally that middle illumination is high simultaneously, and the low situation of surrounding illumination can be brought uncomfortable sensation to people like this, and severe patient can damage human eye.Given this, the present invention has designed a kind of Control on Communication LED desk lamp with dimmer switch, can to the different demands of intensity of illumination, change arbitrarily illumination according to field of employment, and the uniform light fixture of brightness in irradiation area, can meet people's demand.

Summary of the invention

Technical problem to be solved by this invention is, provides that a kind of mode of operation is simple, various and control precision is high, the energy-saving Control on Communication LED desk lamp with dimmer switch of irradiation area uniform-illumination.

The technical solution adopted in the present invention is: a kind of Control on Communication LED desk lamp with dimmer switch, adopt to divide irradiation area is divided into 9 regions that distribute ringwise from the inside to surface, and the control method of carrying out is respectively controlled the brightness of LED lamp, comprises main control module (1); The communication module (2) being connected with main control module (1); What be connected with communication module (2) is host computer (3); The key-press module (4) being connected with main control module (1); The display module (5) being connected with main control module (1); The driver module (6) being connected with main control module (1); The LED lamp group (7) that driver module (6) is connected; The power module (8) being connected with main control module (1).

What described main control module (1) was selected is MSP430F5438 single-chip minimum system module, for the processing of information.

What described communication module (2) was selected is RS485 serial communication, with host computer group-net communication.

Described host computer (3) is common PC.

Described key-press module (4) is for the instruction of input requirements, and sharing system reset, model selection, stepping are selected, added, subtract 5 buttons and form.

The brightness of lamp has six kinds of preference patterns

Pattern zero: lamp goes out entirely

Pattern one: the about 500LUX of brightness

Pattern two: the about 1000LUX of brightness

Pattern three: the about 1500LUX of brightness

Pattern four: the about 2000LUX of brightness

Pattern five: the about 2500LUX of brightness.

What described display module (5) was selected is 12864 dot matrix lcd modules, can show 4 row 8 row Chinese characters, for display lamp group address, and pattern, countdown remaining time.

What described driver module (6) was selected is that the LED constant-flow driver that DD311 single channel is exported is to aim at the chip that drives great power LED and design, for driving LED lamp group.

Described LED lamp group (7) is comprised of 600 highlighted white light LEDs bulbs, and every 6 is 1 group, and lamp group is divided into 9 regions simultaneously, and each region is controlled by 1 road PWM, and these 9 districts distribute from inside to outside ringwise.Lamp group outer ring is aluminum alloy frame.

Described power module (8) adopts LM2576 series switch integrated regulator as the core devices of MSP430F5438 single-chip microcomputer stabilized voltage power supply.

Accompanying drawing explanation

Fig. 1 is composition frame chart of the present invention;

Fig. 2 is main control module circuit diagram of the present invention;

Fig. 3 is communication module circuit diagram of the present invention;

Fig. 4 is driver module circuit diagram of the present invention;

Fig. 5 is key-press module circuit diagram of the present invention;

Fig. 6 display module circuit diagram of the present invention;

Fig. 7 LED lamp of the present invention group block plan;

Fig. 8 is power module circuitry figure of the present invention;

Embodiment

Below in conjunction with accompanying drawing and example, the invention will be further described.

As shown in Figure 1, Control on Communication LED desk lamp with dimmer switch of the present invention, adopts irradiation area is divided into 9 regions that distribute ringwise from the inside to surface, and the control method of carrying out is respectively controlled the brightness of LED lamp, comprises main control module (1); The communication module (2) being connected with main control module (1); What be connected with communication module (2) is host computer (3); The key-press module (4) being connected with main control module (1); The display module (5) being connected with main control module (1); The driver module (6) being connected with main control module (1); The LED lamp group (7) that driver module (6) is connected; The power module (8) being connected with main control module (1).

As shown in Figure 2, main control module (1) circuit diagram, what the present invention selected is that MSP430F5438 single-chip microcomputer is main control chip, MSP430F5438 is a senior single-chip microcomputer in 430 series monolithics, powerful, use MSP430F5438 single-chip microcomputer can produce 9 road PWM square waves and control respectively LED lamp group 9 light-emitting zones from the inside to surface, to reach the uniform object of brightness in LED light source irradiated area.

As shown in Figure 3, what communication module (2) was selected is RS485 serial communication, RS485 communication interface, with host computer group-net communication, communication protocol is: brightness+6 district, brightness+5 district brightness+8 district, the brightness+7 district brightness+9 district brightness of brightness+4 district, brightness+3 district, brightness+2 district, address+1 district, as: host computer sends 0X030X7F0X7F0X7F0X7F0X7F0X7F0X7F0X7F0X7F, and the brightness in 9 districts of lamp group that address is 03 is all 50%.

As shown in Figure 4, driver module (6) circuit diagram, what select is DD311LED constant-flow driver, and DD311 is the LED constant-flow driver of a single channel output, and built-in current mirror and current switch assembly are to aim at the chip that drives great power LED and design.DD311 can drive the Shen up to 1 ampere to enter electric current (sink current), and ((IRE F) sets arbitrarily the size of output current can to see through adjustment reference input electric current.Output current value is about the IREF of 100 times, and IREF can by adjusting plug-in resistance or bias voltage, ((bias) voltage be set.Fine setting or the brightness enabling between bias voltage recoverable LED differ or realize overall brightness between plurality of LEDs and adjust simultaneously.The output of chip can bear the voltage up to 36V, supports the serial connection application of many great power LEDs.((Enable) can realize the high gray application of great power LED to built-in output enable end easily.For driving LED lamp group.

As shown in Figure 5, key-press module of the present invention (4) circuit, sharing system reset, model selection, stepping are selected, are added, subtract 5 buttons and form.

As shown in Figure 6, display module of the present invention (5) circuit, what select is 12864 dot matrix lcd modules, can show 4 row 8 row Chinese characters, for display lamp group address, pattern and real-time time.

As shown in Figure 7, LED lamp group of the present invention (7) is comprised of 600 highlighted white light LEDs bulbs, and every 6 is 1 group, and two ends institute making alive is 24V, and average every LEDs dividing potential drop is 4V, meets the driving requirement of highlighted white light LEDs bulb.Lamp group is divided into 9 regions altogether simultaneously, each region is controlled by 1 road PWM, and these 9 districts distribute from inside to outside ringwise, the LED that can realize like this each region sends the illumination difference of light, if the luminous intensity of LED is strengthened from inside to outside gradually, just can make the brightness value of irradiation area consistent.Lamp group outer ring is aluminum alloy frame.

As shown in Figure 8, power module of the present invention (8) adopts LM2576 series switch integrated regulator not only can improve the operating efficiency of stabilized voltage power supply as the core devices of MSP430F5438 single-chip microcomputer stabilized voltage power supply, reduce energy loss, the pyrolytic damage of minimizing to MSP430F5438 single-chip microcomputer, and can reduce the interference of external communication voltage fluctuation to MSP430F5438 single-chip microcomputer, can reduce the High-frequency Interference of scurrying into through power supply, this can play a multiplier role to ensureing safety and the reliability service of MSP430F5438 single-chip microcomputer simultaneously.

A kind of Control on Communication LED desk lamp with dimmer switch of the present invention, employing is divided into irradiation area in 9 regions that distribute ringwise from the inside to surface, the control method of carrying out is respectively controlled the brightness of LED lamp, and its illumination regulative mode has button to regulate and host computer regulates two kinds of modes.

Claims (3)

1. a Control on Communication LED desk lamp with dimmer switch, has main control module (1); It is characterized in that: also comprise the communication module (2) being connected with main control module (1); What be connected with communication module (2) is host computer (3); The key-press module (4) being connected with main control module (1); The display module (5) being connected with main control module (1); The driver module (6) being connected with main control module (1); The LED lamp group (7) that driver module (6) is connected; The power module (8) being connected with main control module (1).

2. Control on Communication LED desk lamp with dimmer switch according to claim 1, is characterized in that: described key-press module is for the instruction of input requirements, and sharing system reset, model selection, stepping are selected, added, subtract 5 buttons and form.

The brightness of lamp has six kinds of preference patterns

Pattern zero: lamp goes out entirely

Pattern one: the about 500LUX of brightness

Pattern two: the about 1000LUX of brightness

Pattern three: the about 1500LUX of brightness

Pattern four: the about 2000LUX of brightness

Pattern five: the about 2500LUX of brightness.

3. Control on Communication LED desk lamp with dimmer switch according to claim 1, it is characterized in that: described LED lamp group is comprised of 600 highlighted white light LEDs bulbs, every 6 is 1 group, and lamp group is divided into 9 regions simultaneously, each region is controlled by 1 road PWM, and these 9 districts distribute from inside to outside ringwise.Lamp group outer ring is aluminum alloy frame.

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