CN205793537U - Multifucntional LED desk lamp - Google Patents

Abstract

The utility model discloses a kind of Multifucntional LED desk lamp, employing LED is light source；Including control circuit, described control circuit includes that single-chip microcomputer main control module, LED constant current drive module, clock module, LCD MODULE, key-press module and main power source；Described single-chip microcomputer main control module connects LED constant current and drives module, clock module, LCD MODULE, key-press module and main power source；LED constant current drives module to connect LED.Have concurrently simultaneously clock/calendar, regularly, the multiple function such as temperature detection, liquid crystal display.While realizing energy-conserving and environment-protective, bring convenience to family life.

Description

Multifucntional LED desk lamp

Technical field

This patent relates to electronic structure technical field, especially relates to a kind of Multifucntional LED desk lamp.

Background technology

Increasingly serious along with global energy crisis and haze problem, green energy conservation is paid close attention to by everybody, and people are Strive to find new power save mode.Illumination is the importance that the mankind consume the energy, and in power consumption, developed country's illumination is used It is 1 19 that electricity accounts for the ratio of generating total amount, and China also reaches 1 12, and along with economic development, the illumination of China is used Electricity will have the raising of vast scale, and therefore the research of green energy conservation illumination increasingly comes into one's own.LED is as one Solid-state cold light source, is the new light of forth generation after electric filament lamp, fluorescent lamp, high-intensity discharge lamp (such as high-pressure mercury lamp and Metal halogen lamp) Source.Solid-state illumination based on white light LEDs, is a kind of typical green illumination mode, compared with conventional light source, has energy-conservation, ring The features such as guarantor, life-span length, volume are little, safe and reliable, represent the future of lighting engineering, and " building of meeting that current governmental proposes If resource-efficient and environment friendly society " requirement.It is contemplated that in the near future, LED will necessarily enter general lighting Field replaces existing lighting source.

At present, the desk lamp using electric filament lamp, Halogen light, fluorescent lamp, even LED to be light source on the market generally also exists and does not save Can environmental protection, the shortcoming such as function singleness.

Summary of the invention

The purpose of this utility model is to provide a kind of Multifucntional LED desk lamp, have concurrently simultaneously clock/calendar, regularly, temperature The multiple functions such as degree detection, liquid crystal display.While realizing energy-conserving and environment-protective, bring convenience to family life.

The purpose of this utility model is achieved through the following technical solutions:

A kind of Multifucntional LED desk lamp, employing LED is light source；Including control circuit, described control circuit includes list Sheet machine main control module, LED constant current drive module, clock module, LCD MODULE, key-press module and main power source；

Described single-chip microcomputer main control module connects LED constant current and drives module, clock module, LCD MODULE, button mould Block and main power source；LED constant current drives module to connect LED.

Described Multifucntional LED desk lamp, also includes that wireless remote control module, described wireless remote control module include wireless Transport module and Digiplex；Described wireless transport module connects single-chip microcomputer main control module；Described Digiplex with Wireless transport module wireless connections.

Described Multifucntional LED desk lamp, also includes temperature detecting module；Described temperature detecting module connects monolithic Machine main control module.

Described Multifucntional LED desk lamp, also includes that buzzer module, described buzzer module connect monolithic owner Control module.

Described LED constant current drives module to use the blood pressure lowering galvanostat of capacitor and inductor conduction mode.

Described clock module connects stand-by power supply.

The technical scheme that thered is provided by above-mentioned this utility model is it can be seen that the many merits of one that provide of this utility model embodiment Can New LED desk lamp, have concurrently simultaneously clock/calendar, regularly, the multiple function such as temperature detection, liquid crystal display.Realizing energy-saving ring While guarantor, bring convenience to family life.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, required in embodiment being described below The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only enforcements more of the present utility model Example, from the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings Obtain other accompanying drawings.

The electrical block diagram of the Multifucntional LED desk lamp that Fig. 1 provides for this utility model embodiment；

The circuit theory schematic diagram of the Multifucntional LED desk lamp that Fig. 2 provides for this utility model embodiment；

The main program flow chart of the Multifucntional LED desk lamp that Fig. 3 provides for this utility model embodiment；

The button detection of the Multifucntional LED desk lamp that Fig. 4 provides for this utility model embodiment and process chart；

The intervalometer of the Multifucntional LED desk lamp that Fig. 5 provides for this utility model embodiment generates PWM flow chart.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole realities Execute example.Based on embodiment of the present utility model, those of ordinary skill in the art are obtained under not making creative work premise The every other embodiment obtained, broadly falls into protection domain of the present utility model.

Separately it should be noted that description orientation mentioned herein " on ", D score, "left", "right", " front, " afterwards " removes Specified otherwise is all not specific to this orientation, is intended merely to describe conveniently, and different its of the placement direction of described product describes phase the most not to the utmost With.Those of ordinary skill in the art are intelligible orientation under not making creative work premise, broadly falls into this utility model Protection domain.

Below in conjunction with accompanying drawing, this utility model embodiment is described in further detail.

Embodiment one

As shown in Figures 1 and 2, a kind of Multifucntional LED desk lamp, employing LED is light source, and concrete LED's is all excellent Point, energy-conserving and environment-protective；In order to realize multi-functional control, structure also including control circuit, described control circuit includes monolithic Machine main control module, LED constant current drive module, clock module, LCD MODULE, key-press module and main power source；

Described single-chip microcomputer main control module connects LED constant current and drives module, clock module, LCD MODULE, button mould Block and main power source；LED constant current drives module to connect LED.Single-chip microcomputer main control module uses STC89C52RC chip, is that the U.S. partly leads A kind of low-power consumption of body examination examination alliance STC production, high-performance CMOS 8 8-digit microcontroller, have 8K byte system Flash able to programme Memorizer.Realizing data process and control whole circuit, internal memory is big, function is many, concrete control mode and known desk lamp, electronics The control of 10000 years or electronic alarm clock is identical, is the most simply applied in combination.

Main power source can be built-in power, such as battery, it is also possible to be directly connected to 220V alternating current power supply, uses 220V civil power to supply Electricity, shell needs anticreep safety measure.

LCD MODULE is connected with single-chip microcomputer main control module and realizes LED desk lamp numerical monitor, as LCDs uses 12864 liquid crystal, it is simply that 128*64 point is constituted.

Key-press module is connected numeral setting and the timing realizing LED desk lamp with single-chip microcomputer main control module.

Clock module is connected with single-chip microcomputer main control module and realizes time calendar directly displaying in LCD MODULE；Time Clock module uses DS1302 chip, is that the low-power consumption with tiny stream thin electric current charging ability released by DALLAS company of the U.S. is real-time Clock chip, merit clock module can powerful, power consumption is little, can directly exist with bin, lunar calendar and solar calendar timing, temperature data Show in LCD MODULE.Time data is passed to single-chip microcomputer main control module process, be directly displayed in LCD MODULE. Meanwhile, described clock module connects stand-by power supply.In the case of preventing desk lamp main power source from not having electricity, clock resets.

Described LED constant current drives module to use the blood pressure lowering galvanostat of capacitor and inductor conduction mode.LED constant current drives module Alternating current can be directly changed into constant electric current output.It is high that it has conversion ratio, and output current precision is high, stabilization frequency characteristic, There is over-current over-voltage protection function simultaneously.Produce 3.5v constant voltage, make LED not flash, protect eyes.

In this example, described Multifucntional LED desk lamp, also include wireless remote control module, described wireless remote control module Including wireless transport module and Digiplex；Described wireless transport module connects single-chip microcomputer main control module；Described is wireless Remote controller and wireless transport module wireless connections.Single-chip microcomputer main control module connects the data-interface of wireless module, when being wirelessly transferred mould Block send instruction chip when sending signal, accept chip and receive instruction, and pass to single-chip microcomputer main control module analyzing and processing, reach To the purpose controlling desk lamp.Single-chip microcomputer main control module includes the outfan of pulse width modulation (PWM) signal, and drives with LED constant current The input of dynamic model block is connected, and when Digiplex sends instruction, passes to single-chip microcomputer main control module and processes, it is achieved PWM dims.Can To realize the wireless remote control of desk lamp and open and close, wireless 100 grades of PWM light modulation, the longest can be with remote control 10 meters；Liquid crystal display screen can show Show current time, week, brightness, temperature；Time opening desk lamp, to wake up user up；Can be by button to time and timing ginseng Number is arranged.

In this example, described Multifucntional LED desk lamp, also include temperature detecting module；Described temperature detecting module Connect single-chip microcomputer main control module, it is achieved the display of LED desk lamp temperature.Temperature detecting module specifically used DS18B20 chip, be by What DALLAS company of the U.S. released is conventional temperature sensor, has volume little, and hardware spending is low, and capacity of resisting disturbance is strong, essence Spend high feature.

In this example, described Multifucntional LED desk lamp, also include that buzzer module, described buzzer module connect Single-chip microcomputer main control module, it is achieved the timing alarm of LED desk lamp.

Being as previously mentioned control mode is not the content that this patent thinks protection, and this utility model is by known technology It is to be applied in combination, has accomplished the openest.

The most only illustrate and control how to realize, for those of ordinary skill in the art's reference:

This utility model controls process procedures and mainly comprises system mastery routine, button detection program, timer interrupt program Deng.This utility model compared with common desk lamp, it special be energy-conserving and environment-protective, protect vision, wireless switching desk lamp and Adjust a wage scale brightness；There is the function of perpetual calendar, button is adjustable date, also sound and light of alarm, arrive setting time, the bright honeybee of desk lamp Ring device rings, and fully achieves the intellectuality of LED desk lamp.Combined debugging is carried out until realizing its function after design of hardware and software is complete.

The principle of such scheme is: pulse width modulation (PWM) is that the numeral output utilizing microprocessor comes analog circuit The very effective technology of one being controlled, is widely used in from measuring, communicate power control and conversion and LED illumination etc. In many fields.By controlling analog circuit in a digital manner, cost and the power consumption of system can be greatly lowered.Additionally, permitted Multi-microcontroller and DSP have contained PWM controller on chip, and this makes numerically controlled realization become to be more prone to. In brief, PWM is that one carries out digitally coded method to analog signal level.By the use of high-resolution counter, The dutycycle of square wave is modulated for encoding the level of a physical simulation signal.Pwm signal remains numeral, because of For in given any moment, expire the direct current supply of amplitude or have completely (ON), or entirely without (OFF).Voltage or electric current Source is to be added to fictitious load up with the repetition pulse sequence of one logical (ON) or disconnected (OFF).It it is i.e. direct current when of logical Power supply is when be added to load, and is i.e. that power supply is when be disconnected the when of disconnected.As long as bandwidth is enough, any analogue value is all PWM can be used to encode.

Concrete, as it is shown in figure 1, this multi-functional LED desk lamp uses white light LEDs light emitting diode to be light source, with single-chip microcomputer For the core of system, wireless transport module, LED constant current drive module, LCD MODULE, clock module, temperature measurement module, honeybee Ring device module, key-press module composition.After powering on to desk lamp, single-chip microcomputer initializes, and presses the start button of Digiplex, passes through Wireless receiving module passes to single-chip microcomputer, processes through single-chip microcomputer, controls the unlatching of desk lamp.Press the brightness regulation key of remote controller, logical Cross wireless receiving module and pass to single-chip microcomputer, process through single-chip microcomputer, send PWM dim signal to constant-flow driver, reality by P3.6 Existing PWM light modulation.After clock chip powers on, begin to send out time signal, process through single-chip microcomputer and be directly displayed on liquid crystal display screen.Survey After temperature module powers on, temperature signal is passed to single-chip microcomputer process and is directly displayed on liquid crystal display screen.Press three buttons one of them, To one signal of single-chip microcomputer, it is possible to achieve the adjustment of time and the setting of timing parameters.

As it is shown on figure 3, system mastery routine specifically includes that the detection of system initialization routine, button and processing routine, clock number According to reading and processing routine, the judgement reported to the police with processing routine, liquid crystal display program, alarm clock of the reading of temperature data and process Program, PWM light modulation processing routine etc..Powering on to desk lamp, electrification reset, system initialization, button detects, if Clock_flag =1, bright if 1 desk lamp, buzzer rings, and completes sound and light alarm.If not being that 1 clock module, the data of temperature measurement module show On liquid crystal display screen.As long as there being this process of electricity to circulate down.

As shown in Figure 4, by key control system by tetra-buttons of Digiplex A, B, C, D and circuit board S1, S2, S3 tri- Button form, be respectively as follows: A for open button, C for close button, B for light modulation progression increase button, D for light modulation progression reduce by Key, S1 for arrange button, S2 for increase or time set button, S3 for reduce or time set button.When pressing A key, Clock_flag=0, without time set, performs to open the instruction of desk lamp.When pressing B key, Clock_flag=0 sets without timing Put, perform to increase desk lamp luminance instructions.When pressing D key, Clock_flag=0, without time set, performs to reduce desk lamp brightness Instruction.When pressing C key, Clock_flag=0, without time set, performs to close the instruction of desk lamp.When pressing S1 key, Clock_flag=0, without time set, performs set of time instruction, then presses the increase of S2 numeral or reduce by S3 numeral.When pressing During S2 or S3 key, Clock_flag=1 time set instruct, then press S1 key carry out select arrange.Button arrange embody people with Desk lamp mutual, reaches to control the purpose of desk lamp.

As it is shown in figure 5, this utility model is set to working method 0 intervalometer T0, produce PWM dim signal, it is achieved The regulation of desk lamp brightness.Because system uses 12MHz crystal oscillator, so composing initial value TH0=0xfc and TL0=0x18, can realize The Interruption of 0.05mS.100 grades of light modulations are interrupted for i.e. 100 times as a cycle, by single-chip microcomputer in regulation each cycle The dutycycle of P3.6 output carries out light regulation.T0_num is defined as T0 interruption times, and scale is defined as high level pulse Number, LED_PWM=1 is defined as P3.6 and exports high level, and LED_PWM=0 is defined as P3.6 output low level.When pressing B key, right T0 composes initial value, counts T0 interruption times, and judges whether T0_num is 100, if T0_num is equal to 100 interruption times Zero, desk lamp brightness increases.If T0_num judges the number of high level again less than 100, for realizing different brightness degree Regulation.If the P3.6 output low level of T0_num=scale single-chip microcomputer, otherwise export high level, then interrupt returning, as long as There is interruption to circulate the most always.

The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model is not Being confined to this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in Change or replacement, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should It is as the criterion with the protection domain of claims.

Claims (6)

1. a Multifucntional LED desk lamp, it is characterised in that employing LED is light source；Including control circuit, described control Circuit includes that single-chip microcomputer main control module, LED constant current drive module, clock module, LCD MODULE, key-press module and main electricity Source；

Described single-chip microcomputer main control module connect LED constant current drive module, clock module, LCD MODULE, key-press module with Main power source；LED constant current drives module to connect LED.

Multifucntional LED desk lamp the most according to claim 1, it is characterised in that also include wireless remote control module, described Wireless remote control module include wireless transport module and Digiplex；Described wireless transport module connects single-chip microcomputer master control mould Block；Described Digiplex and wireless transport module wireless connections.

Multifucntional LED desk lamp the most according to claim 1, it is characterised in that also include temperature detecting module；Described Temperature detecting module connect single-chip microcomputer main control module.

Multifucntional LED desk lamp the most according to claim 1, it is characterised in that also include buzzer module, described Buzzer module connects single-chip microcomputer main control module.

5. according to the Multifucntional LED desk lamp described in claim 1,2,3 or 4, it is characterised in that described LED constant current is driven Dynamic model block uses the blood pressure lowering galvanostat of capacitor and inductor conduction mode.

6. according to the Multifucntional LED desk lamp described in claim 1,2,3 or 4, it is characterised in that described clock module is even Connect stand-by power supply.