CN202408393U

CN202408393U - Intelligent curtain suitable for family

Info

Publication number: CN202408393U
Application number: CN2012200200752U
Authority: CN
Inventors: 李艳辉; 赵辉; 刘斌
Original assignee: Northeast Petroleum University
Current assignee: Northeast Petroleum University
Priority date: 2012-01-17
Filing date: 2012-01-17
Publication date: 2012-09-05
Anticipated expiration: 2022-01-17

Abstract

The utility model discloses an intelligent curtain suitable for family, and mainly aims to provide a household curtain which can be intelligently and automatically opened or closed. The intelligent curtain is characterized by also comprising a single chip microcomputer, a power circuit, a clock circuit, a display unit, a crystal oscillation and reset circuit, a photoinduction circuit and a motor control unit, wherein the single chip microcomputer is used as a central control unit; the power circuit, the clock circuit, the display unit and the crystal oscillation and reset circuit are connected to corresponding signal ends of the single chip microcomputer respectively; the photoinduction circuit is formed by connecting a photosensitive diode, a charge/discharge capacitor and a triode, wherein the anode of the photosensitive diode is used as a connection end of a P2.2 port of the single chip microcomputer, and the emitter of the triode is used as a connection end of a P2.3 port of the single chip microcomputer; and a control signal output by the single chip microcomputer is connected into the motor control unit and used as a node signal controlling the motor to rotate forward or backward. The curtain disclosed by the utility model has a simple structure; by adopting the single chip microcomputer, the curtain is easy to realize and has low economic cost; and the curtain is very suitable for popularization to families.

Description

A kind of intelligent curtain that is applicable to family

Technical field

The utility model relates to a kind of Smart Home articles for use applicable to family.

Background technology

At present, Along with people's constantly improving, has had increasing automatic technology to be applied in the life staying idle at home the requirement of quality of life, for example automatic electric rice cooker, automatically-controlled door, TV or the like automatically.The development of modern science and technology thinks that human service is guiding, so each scientific and technological achievement all will be applied in the life more or less, is used for the mode of making the life better, and makes that life is more convenient, lighter.In the at present domestic and international household goods field of retrieval, still do not have automatic intelligent curtain a kind of with low cost, simple in structure, therefore, develop people's demand that these type of articles for use should be able to adapt to continuous development.

Summary of the invention

The technical problem of mentioning in order to solve in the background technology; The utility model provides a kind of intelligent curtain that is applicable to family; This kind curtain can judge it is daytime or night according to the dark weak situation of extraneous light, and controls the state of curtain on this basis, realizes intelligent control.

The technical scheme of the utility model is: this kind is applicable to the intelligent curtain of family; Comprise curtain and roller shutter; Said roller shutter is by motor driven; Its unique distinction is: said intelligent curtain also comprises AT89C51 single-chip microcomputer, power circuit, clock circuit, display unit, crystal oscillator and a reset circuit, photoinduction circuit and described motor control unit; Wherein, said single-chip microcomputer is as central control unit, and said power circuit, clock circuit, display unit and crystal oscillator and reset circuit are connected to the respective signal end of this single-chip microcomputer respectively; Said photoinduction circuit constitutes after being connected by photodiode, charge and discharge capacitance and triode, and wherein the positive pole of photodiode is as the link of said single-chip microcomputer P2.2 port, and the emitter stage of triode is as the link of said single-chip microcomputer P2.3 port; The control signal of said single-chip microcomputer output inserts in the said motor control unit as the node signal of controlling the motor rotating.

The utlity model has following beneficial effect: this kind device is based on the intelligent curtain of AT89C51 single-chip microcomputer design, and this curtain can judge it is daytime or night according to the dark weak situation of extraneous light, and controls the state of curtain on this basis; This kind curtain has also designed timing function in addition, and in this case, the user can set the time that curtain opens and closes automatically, and can make prompting.This is the intelligent curtain of core with the single-chip microcomputer, simple in structure, technology maturation, and it is low to be easy to realization and financial cost, is fit to very much be applied to the domestic consumer.Certainly; Except numerous citizen's dwelling house uses; This kind curtain can also be widely used in various public places such as villa, apartment, hotel, restaurant, office building, dancing hall, cinema, conference hall, bank, school, hospital, so this product has vast market prospect.

Description of drawings:

Fig. 1 is the composition frame chart of the utility model.

Fig. 2 is the electrical schematic diagram of the said power circuit of the utility model.

Fig. 3 is the electrical schematic diagram of the said display unit of the utility model.

Fig. 4 is the electrical schematic diagram of the said clock circuit of the utility model.

Fig. 5 is the electrical schematic diagram of the said photoinduction circuit of the utility model.

Fig. 6 is the electrical schematic diagram of the said motor control unit of the utility model.

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is described further:

Combine shown in Figure 6 by Fig. 1; This kind is applicable to the intelligent curtain of family; Comprise curtain and roller shutter; Said roller shutter is characterized in that by motor driven: said intelligent curtain also comprises AT89C51 single-chip microcomputer, power circuit, clock circuit, display unit, crystal oscillator and a reset circuit, photoinduction circuit and described motor control unit, wherein; Said single-chip microcomputer is as central control unit, and said power circuit, clock circuit, display unit and crystal oscillator and reset circuit are connected to the respective signal end of this single-chip microcomputer respectively; Said photoinduction circuit constitutes after being connected by photodiode D6, charge and discharge capacitance C10 and triode Q5; Wherein the positive pole of photodiode D6 is as the link of said single-chip microcomputer P2.2 port, and the emitter stage of triode Q5 is as the link of said single-chip microcomputer P2.3 port; The control signal of said single-chip microcomputer output inserts in the said motor control unit as the node signal of controlling the motor rotating.

Carry out division in the face of each part down:

Power circuit design part is as shown in Figure 2, through transformer the 220V civil power is depressured to 12V, pass through rectification circuit again after, input direct current 12V voltage.C1 is 12 volts a filter capacitor, and the purpose of a little electric capacity of general big electric capacity next door parallel connection is to reduce the high frequency internal resistance.Simultaneously through acquisition+5V voltage VCC after the 3 end integrated regulator LM7805 voltage stabilizings; Because municipal power failure causes the main power source power down, so in design, adopted dual power supply, promptly external battery is supplied power in order to prevent; BATTERY as shown in Figure 2 is a dc power supply; Voltage is 3V～3.6V, in this circuit, in order to save cost, uses No. 5 rechargeable batteries of two joints.C3 and C4 play filter action to power supply.Under the normal situation of alternating current, when the VDD power supply is system's power supply, also be battery float at ordinary times; Prolonged the service life of battery greatly; In the time of ac outage, battery is the SCM system power supply, and SCM system is kept the normal of clock under power-down state.

Display circuit design is as shown in Figure 3, employing be that the LCD1602 liquid crystal comes display, this display can realize that character shows.It mainly is used for realizing real-time time, transfers the curtain time of windowing, closes effect such as curtain time in this design.Being connected between 1602 liquid crystal displays and the single-chip microcomputer is as shown in Figure 3, and P0.0～P0.7 mouth is used for transmitting data and instruction, because P0 mouth carrying load ability is poor, draws resistance so need connect.P2.5 meets the 4 pin RS (data/command selection end) of LCD1602, and P2.6 connects the 5 pin R/W-read-write selecting side of LCD1602, and P2.7 connects the 6 pin E-enable signals of LCD1602.Can adjust the brightness of LCD1602 in this circuit through regulator potentiometer W1.

Clock circuit is as shown in Figure 4, and this circuit adopts the DS1302 clock chip, and the DS1302 main feature is to adopt the serial data transmission, and has solved leap year problem in 2000, and is reliable, and precision is high.Can be the power down protection power supply programmable charge function is provided; Has regularly charge closing function; This clock circuit adopts independent 32768Hz crystal oscillator, and two power Vcc 1 and Vcc2 meet power vd D, if there is not the power supply of alternating current also can be supplied power by rechargeable battery like this; Play power down protection, prevented loss of data.2 pin X1-crystal oscillator pins reach 3 pin X2-crystal oscillator pins, connect the crystal oscillator of 32786Hz; The 7 pin CLK-serial clock input pins of DS1302 link to each other with the P1.5 of single-chip microcomputer; 6 pin I/O-data input and output pins link to each other with the P1.6 of single-chip microcomputer, and 5 pin RET-reset pins link to each other with the P1.7 of single-chip microcomputer.

Photoinduction circuit is as shown in Figure 5; Mainly be to utilize the photobehavior of photodiode to constitute; Power through the induction extraneous light is that self break-make situation changes, and single-chip microcomputer then detects high level or low level to P2.2 and P2.3, and judgement is night or daytime.Wherein D6 and C10 form charging and discharging circuit, and P2.2 is output as low level, photosensitive diode reverse conducting when illumination is arranged; C10 is through the photodiode charging, and this moment, ambient brightness determined the photoresistance value of photodiode, and the photoresistance value is big; The C10 velocity of discharge is slow, otherwise the velocity of discharge is fast.After P2.3 is used for detecting C10 voltage and drops to below the 1/2VCC; P2.3 records number and is " 0 "; Otherwise record data bit " 1 "; In order to reduce the discharge and recharge influence of P2.3 to C10, the C10 charging/discharging voltage is connected on the P2.3 through the emitter-follower that triode Q5 forms, and the high input impedance of emitter-follower has reduced the influence of P2.3 to circuit.Single-chip microcomputer detects the state of P2.3, when P2.3 representes daytime when " 0 ", when P2.3 for " 1 " and the time represent night.

Circuit for controlling motor is as shown in Figure 6, is to send the control that instruction realizes motor positive and inverse through P2.0 and P2.1 to single-chip microcomputer.Single-chip microcomputer is P2.0 and P2.1 output high level under reset mode, triode Q1, Q2, and Q3, Q4 end, two relay K 1, K2 release conditions, motor is out of service because of the non-transformer power supply.After having the I/O level to be dragged down among P2.0 or the P2.1, two relays that are used to control just have a conducting, make the electrical power operation, so to forward operation or inverted running, mainly still see the instruction of giving to single-chip microcomputer.For example work as P2.0 and drag down the P2.1 high level, motor M gets electric rotation, and when having only P2.1 to drag down the P2.0 high level, motor M is counter-rotation then, has realized drawing back and closing of curtain.The duty of two relays receives Single-chip Controlling, at interior two relays at the same time an adhesive only can be arranged.Even if at the motor M duration of work, operated the backward rotation button, single-chip microcomputer also is the relay that discharges work at present earlier, and the relay of adhesive another one again after time-delay a period of time, has prevented the situation that the positive and negative actuating coil of motor M is switched on simultaneously.

Claims

1. intelligent curtain that is applicable to family; Comprise curtain and roller shutter; Said roller shutter is by motor driven; It is characterized in that: said intelligent curtain also comprises AT89C51 single-chip microcomputer, power circuit, clock circuit, display unit, crystal oscillator and a reset circuit, photoinduction circuit and described motor control unit; Wherein, said single-chip microcomputer is as central control unit, and said power circuit, clock circuit, display unit and crystal oscillator and reset circuit are connected to the respective signal end of this single-chip microcomputer respectively; Said photoinduction circuit connects the back by photodiode (D6), charge and discharge capacitance (C10) and triode (Q5) and constitutes; Wherein the positive pole of photodiode (D6) is as the link of said single-chip microcomputer P2.2 port, and the emitter stage of triode (Q5) is as the link of said single-chip microcomputer P2.3 port; The control signal of said single-chip microcomputer output inserts in the said motor control unit as the node signal of controlling the motor rotating.