CN202077005U - Touch screen switching circuit with infrared remote control - Google Patents

Abstract

The utility model discloses a touch screen switch circuit with infrared remote control, which comprises a backlight circuit, a touch screen circuit, a relay drive circuit and an infrared circuit; the touch screen circuit, the backlight circuit, the relay drive circuit and the infrared circuit are connected with the single chip microcomputer, the There are 4 relay driving circuits with the same structure. Overcoming the shortcomings of traditional mechanical switches, the dark backlight touch design allows people to safely operate the touch screen switch at night when there is no light, and the infrared control can be remotely operated within a certain range, which is safe and convenient.

Description

A touch screen switch circuit with infrared remote control

technical field

The utility model belongs to the field of electronic technology, in particular to a circuit for controlling a lamp switch.

Background technique

Now we all use mechanical switches, which directly make the metal sheet contact and disconnect through the button to realize the on-off of the power supply. Although this kind of switch is cheap, its style is relatively simple and ordinary, and the position of the switch cannot be found when there is no light at night, and the direct contact of the human body with strong electricity may cause electric shock, and it cannot be controlled remotely, which makes the operation not very convenient.

Contents of the invention

The purpose of the utility model is to overcome the deficiency of the current mechanical switch and provide a switch control circuit with safe and convenient operation.

In order to solve the above technical problems, the utility model adopts the following technical solutions:

A touch screen switch circuit with an infrared remote control, comprising a single-chip microcomputer and a crystal oscillator circuit, is characterized in that it also includes a backlight circuit, a touch screen circuit, a relay drive circuit and an infrared circuit; the touch screen circuit, the backlight circuit, the relay drive circuit and the infrared circuit and the The single-chip microcomputers are connected; there are four relay drive circuits with the same structure. The backlight circuit includes light emitting diode L1, light emitting diode L2, light emitting diode L3, light emitting diode L4, light emitting diode L5, light emitting diode L6, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7 and resistor R8; One end of R3 is connected to the light emitting diode L1; one end of the resistor R4 is connected to the light emitting diode L2; one end of the resistor R5 is connected to the light emitting diode L3; one end of the resistor R6 is connected to the light emitting diode L4; one end of the resistor R7 is connected to the light emitting diode L5 Connected; one end of the resistor R8 is connected to the light emitting diode L6; the other end of the light emitting diode L1, the light emitting diode L2, the light emitting diode L3, the light emitting diode L4, the light emitting diode L5, and the light emitting diode L6 is grounded; the resistors R3, R4, The other ends of R5, R6 and R7 are respectively connected to the RB2-RB7 pins of the single-chip microcomputer. The relay drive circuit includes a resistor R9, an NPN transistor Q1, a diode D2, and a relay K1; one end of the resistor R9 is connected to the base of the transistor Q1, and the other end is connected to a corresponding pin of the microcontroller; the transistor Q1 The collector is connected to the positive end of the diode D2 and the No. 5 pin of the relay K1; the emitter of the triode Q1 is grounded; the negative end of the diode D2 and the No. 4 pin of the relay K1 are connected to a power supply; The No. 1 pin of the relay K1 is connected to the output live line L1, and the No. 3 pin is connected to the input live line Lin. The infrared circuit includes an infrared receiving head U2, the sin end of the infrared receiving head U2 is connected to the RB0 pin of the single-chip microcomputer, the GND end is connected to the ground, and the VCC end is connected to the power supply.

As an optional solution, the single-chip microcomputer adopts a PIC16F883 single-chip microcomputer.

As an optional solution, the resistance values of the resistors R3, R4, R5, R6, R7 and R8 are all 510Ω.

As an optional solution, the resistance R9 is 1KΩ, the transistor Q1 is an IN9013 transistor, the diode D2 is an IN4148 diode, and the relay K1 is an SRD-S-124D relay.

The utility model overcomes the shortcomings of the traditional mechanical switch. The dark backlight touch design enables people to safely operate the touch screen switch when there is no light at night, and the infrared control can be used for remote operation within a certain range. Safe and convenient.

Description of drawings

Fig. 1 is the circuit diagram of the single-chip microcomputer circuit of the present utility model;

Fig. 2 is the circuit diagram of the utility model backlight circuit;

Fig. 3 is a circuit diagram of the utility model relay driving circuit.

Detailed ways

The utility model will be further described below in conjunction with accompanying drawing and specific embodiment:

The RA0~RA4 pins of the microcontroller in Figure 1 are respectively connected to the Left, Down, Mid, Up, and Right pins of the touch screen circuit. When the first area of the touch screen is pressed, it controls the on-off of all lines; when the touch screen When the second, third, fourth, and fifth areas are pressed, respectively control the on-off of the corresponding one of the four lines; when the fifth area of the touch screen is pressed, it can be controlled according to the needs of the user On-off of certain routes.

The operation of infrared remote control is also similar. 1-6 on the remote control represent six areas of the touch screen respectively. Pressing a button means that the corresponding area on the touch screen is pressed, and controls the on-off of the corresponding line. Using infrared remote control can control home appliances more conveniently.

The specific circuit implementation steps are as follows:

As shown in Figure 1, the touch screen switch circuit with infrared remote control microcontroller PIC16F883, infrared circuit:

One end of the reset button S1 and the negative end of the capacitor C3 (10uF electrolytic capacitor) are both connected to the ground, the N end of the diode (IN4148) and one end of the resistor R1 (10KΩ) are connected to the 5V voltage, the other end of the reset button S1, the capacitor The positive end of C3, the P end of the diode and the other end of the resistor R1 are all connected to one end of the resistor R2 (1KΩ), the other end of the resistor R2 is connected to the MCLR pin of the single-chip microcomputer PIC16F883, and the RA0 pin of the single-chip microcomputer PIC16F883 is connected to the Left pin of the touch screen , the RA1 pin of the single-chip microcomputer PIC16F883 is connected with the Down pin of the touch screen, the RA2 pin of the single-chip microcomputer PIC16F883 is connected with the Mid pin of the touch screen, the RA3 pin of the single-chip microcomputer PIC16F883 is connected with the Up pin of the touch screen, the RA4 pin of the single-chip microcomputer PIC16F883 is connected with the Right pin of the touch screen, and the capacitor One end of C1 (22pF) and one end of capacitor C2 (22pF) are connected to the ground, one end of the crystal oscillator Y (12M) and the other end of capacitor C1 are connected to the OSC1 pin of the microcontroller PIC16F883, the other end of the crystal oscillator Y is connected to the capacitor C2 The other end is connected with the OSC2 pin of the microcontroller PIC16F883.

As shown in Figure 2, the backlight circuit includes LED L1, LED L2, LED L3, LED L4, LED L5, LED L6, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7 and resistor R8, wherein the resistor The resistance values of R3~R8 are all 510Ω.

One end of the resistor R3 is connected to the RB2 pin of the single-chip microcomputer PIC16F883, one end of the resistor R4 is connected to the RB3 pin of the single-chip microcomputer PIC16F883, one end of the resistor R5 is connected to the RB4 pin of the single-chip microcomputer PIC16F883, one end of the resistor R6 is connected to the RB5 pin of the single-chip microcomputer PIC16F883, and the resistor R7 One end of the resistor R8 is connected to the RB6 pin of the single-chip microcomputer PIC16F883, one end of the resistor R8 is connected to the RB7 pin of the single-chip microcomputer PIC16F883, the other end of the resistor R3 is connected to the positive end of the light-emitting diode L1, and the other end of the resistor R4 is connected to the positive end of the light-emitting diode L2. The other end of the resistor R5 is connected to the positive end of the light-emitting diode L3, the other end of the resistor R6 is connected to the positive end of the light-emitting diode L4, the other end of the resistor R7 is connected to the positive end of the light-emitting diode L5, and the other end of the resistor R8 is connected to the positive end of the light-emitting diode The positive terminal of L6 is connected, the negative terminal of LED L1, the negative terminal of LED L2, the negative terminal of LED L3, the negative terminal of LED L4, the negative terminal of LED L5 and the negative terminal of LED L6 are all connected to the ground connect.

Relay driving circuit includes resistor R9 (1KΩ), resistor R10 (1KΩ), resistor R11 (1KΩ), resistor R12 (1KΩ), NPN transistor Q1 (IN9013), NPN transistor Q2 (IN9013), NPN transistor Q3 (IN9013 ), NPN transistor Q4 (IN9013), diode D2 (IN4148), diode D3 (IN4148), diode D4 (IN4148), diode D5 (IN4148), relay K1 (SRD-S-124D), relay K2 (SRD-S -124D), Relay K3 (SRD-S-124D) and Relay K4 (SRD-S-124D).

One end of the resistor R9 is connected to the RC0 pin of the microcontroller PIC16F883, the other end of the resistor R9 is connected to the base of the NPN transistor Q1, the negative end of the diode D2 and the 4 pins of the relay K1 are connected to the 24V power supply, and the positive end of the diode D2 Both pin 5 of the relay K1 are connected to the collector of the NPN transistor Q1, the emitter of the NPN transistor Q1 is connected to the ground, pin 1 of the relay K1 is connected to the output live wire L1, and pin 3 of the relay K1 is connected to the input live wire Lin. One end of the resistor R10 is connected to the RC1 pin of the microcontroller PIC16F883, the other end of the resistor R10 is connected to the base of the NPN transistor Q2, the negative end of the diode D3 and the 4 pin of the relay K2 are connected to the 24V power supply, and the positive end of the diode D3 Both pin 5 of the relay K2 are connected to the collector of the NPN transistor Q2, the emitter of the NPN transistor Q2 is connected to the ground, pin 1 of the relay K2 is connected to the output live wire L2, and pin 3 of the relay K2 is connected to the input live wire Lin. One end of the resistor R11 is connected to the RC2 pin of the microcontroller PIC16F883, the other end of the resistor R11 is connected to the base of the NPN transistor Q3, the negative end of the diode D4 and the 4 pin of the relay K3 are connected to the 24V power supply, and the positive end of the diode D4 Both pin 5 of the relay K3 are connected to the collector of the NPN transistor Q3, the emitter of the NPN transistor Q3 is connected to the ground, pin 1 of the relay K3 is connected to the output live wire L3, and pin 3 of the relay K3 is connected to the input live wire Lin. One end of the resistor R12 is connected to the RC3 pin of the microcontroller PIC16F883, the other end of the resistor R12 is connected to the base of the NPN transistor Q4, the negative end of the diode D5 and the 4th pin of the relay K4 are connected to the 24V power supply, and the positive end of the diode D5 Both pin 5 of the relay K4 are connected to the collector of the NPN transistor Q4, the emitter of the NPN transistor Q4 is connected to the ground, pin 1 of the relay K4 is connected to the output live wire L4, and pin 3 of the relay K4 is connected to the input live wire Lin.

The infrared circuit includes the infrared receiving head U2 (HD0038). The Sin end of the infrared receiving head U2 is connected to the RB0 pin of the microcontroller PIC16F883, the GND end of the infrared receiving head U2 is connected to the ground, and the VCC end of the infrared receiving head U2 is connected to the 5V power supply.

The working process of this circuit is as follows:

Through the control of the single-chip microcomputer PIC16F883, let the RA0 pin and RA4 pin of the single-chip microcomputer PIC16F883 output high and low levels respectively, and detect the level of the RA1 pin, RA2 pin and RA3 pin. When the RA0 pin of the microcontroller PIC16F883 outputs a high level, and the RA4 pin outputs a low level, if the RA1 pin detects a high level, it means that the lower left area of the touch screen is pressed, and the PWM wave output by the RB4 pin will change from a low duty cycle to For a high duty cycle, the LED L3 changes from dark to bright, or the PWM wave output by the RB4 pin changes from a high duty cycle to a low duty cycle, and the LED L3 changes from bright to dark; if the RA2 pin detects a high voltage Flat, which means that the left middle area of the touch screen is pressed, the PWM wave output by RB3 pin will change from low duty cycle to high duty cycle, and the light-emitting diode L2 will change from dark to bright, or the PWM wave output by RB3 pin will change from The high duty cycle becomes low duty cycle, and the light-emitting diode L2 changes from bright to dark; if the RA3 pin detects a high level, it means that the upper left area of the touch screen is pressed, and the PWM wave output by the RB2 pin will change from low duty cycle to low. When the duty cycle becomes high, the LED L1 changes from dark to bright, or the PWM wave output by the RB2 pin changes from a high duty cycle to a low duty cycle, and the LED L1 changes from bright to dark. When the RA0 pin of the microcontroller PIC16F883 outputs a low level, and the RA4 pin outputs a high level, if the RA1 pin detects a high level, it means that the lower right area of the touch screen is pressed, and the PWM wave output by the RB7 pin will start from a low duty cycle. Change to a high duty cycle, the light-emitting diode L6 changes from dark to bright, or the PWM wave output by the RB7 pin changes from a high duty cycle to a low duty cycle, and the light-emitting diode L6 changes from bright to dark; if the RA2 pin detects a high Level, indicating that the right middle area of the touch screen is pressed, the PWM wave output by RB6 pin will change from low duty cycle to high duty cycle, and the light-emitting diode L5 will change from dark to bright, or the PWM wave output by RB6 pin will be From high duty cycle to low duty cycle, light-emitting diode L5 changes from bright to dark; if RA3 pin detects a high level, it means that the upper right area of the touch screen is pressed, and the PWM wave output by RB5 pin will change from low duty cycle to low duty cycle. When the duty ratio becomes high, the LED L4 changes from dark to bright, or the PWM wave output from the RB5 pin changes from a high duty cycle to a low duty cycle, and the LED L4 changes from bright to dark.

When an area of the touch screen is pressed, according to the corresponding function, the RC0 pin, RC1 pin, RC2 pin and RC3 pin of the microcontroller PIC16F883 will output high and low levels to control the switch of the light. If the RC0 pin outputs a high level, the NPN transistor Q1 is turned on, the relay K1 is closed, L1 and Lin are turned on, and the connected lamp is powered on; if the RC0 pin outputs a low level, the NPN transistor Q1 is cut off, and the relay K1 is turned off. Open, L1 and Lin are disconnected, and the connected lamps are powered off.

When using the infrared remote controller to operate it, the RB0 pin of the single-chip microcomputer PIC16F883 will get the corresponding code system through the infrared receiver U1, and after decoding by the single-chip microcomputer, it will know what the specific operation is, and then perform the corresponding action.

The above is only a preferred embodiment of the present utility model, and it should be pointed out that for those of ordinary skill in the art, some improvements and modifications can also be made without departing from the concept of the present utility model. Should be regarded as within the protection scope of the present utility model.

Claims (7)

1. the touch-screen switch circuit with infrared remote control comprises single-chip microcomputer and crystal oscillating circuit, it is characterized in that, also comprises backlight circuit, touch screen circuitry, relay drive circuit and infrared circuit; Described touch screen circuitry, backlight circuit, relay drive circuit and infrared circuit link to each other with described single-chip microcomputer;

Described relay drive circuit has 4 and structure identical.

2. a kind of touch-screen switch circuit according to claim 1 with infrared remote control, it is characterized in that described backlight circuit comprises light-emitting diode L1, light-emitting diode L2, light-emitting diode L3, light-emitting diode L4, light-emitting diode L5, light-emitting diode L6, resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7 and resistance R 8; Described resistance R 3 one ends link to each other with light-emitting diode L1; Described resistance R 4 one ends link to each other with light-emitting diode L2; Described resistance R 5 one ends link to each other with light-emitting diode L3; Described resistance R 6 one ends link to each other with light-emitting diode L4; Described resistance R 7 one ends link to each other with light-emitting diode L5; Described resistance R 8 one ends link to each other with light-emitting diode L6; The other end ground connection of described light-emitting diode L1, light-emitting diode L2, light-emitting diode L3, light-emitting diode L4, light-emitting diode L5, light-emitting diode L6; The other end of described resistance R 3, R4, R5, R6 and R7 links to each other with the RB2 ~ RB7 pin of described single-chip microcomputer respectively.

3. a kind of touch-screen switch circuit with infrared remote control according to claim 1 is characterized in that, described relay drive circuit comprises resistance R 9, NPN type triode Q1, diode D2, relay K 1; Described resistance R 9 one ends link to each other with the base stage of described triode Q1, and the other end links to each other with the corresponding pin of single-chip microcomputer; The collector electrode of described triode Q1 links to each other with the anode of described diode D2 and No. 5 pin of described relay K 1; The grounded emitter of described triode Q1; No. 4 pin of the negative terminal of described diode D2 and described relay K 1 all connect power supply; No. 1 pin of described relay K 1 links to each other with output live wire L1, and No. 3 pin links to each other with input live wire Lin.

4. a kind of touch-screen switch circuit according to claim 1 with infrared remote control, it is characterized in that described infrared circuit comprises infrared receiving terminal U2, the sin end of described infrared receiving terminal U2 links to each other with the RB0 pin of single-chip microcomputer, the GND end links to each other with ground, and the VCC end links to each other with power supply.

5. a kind of touch-screen switch circuit with infrared remote control according to claim 1 is characterized in that, described single-chip microcomputer adopts the PIC16F883 single-chip microcomputer.

6. a kind of touch-screen switch circuit with infrared remote control according to claim 2 is characterized in that the resistance value of described resistance R 3, resistance R 4, resistance R 5, resistance R 6, resistance R 7 and resistance R 8 is 510 Ω.

7. a kind of touch-screen switch circuit according to claim 3 with infrared remote control, it is characterized in that described resistance R 9 is 1K Ω, described triode Q1 adopts the IN9013 triode, described diode D2 adopts the IN4148 diode, and described relay K 1 adopts the SRD-S-124D relay.

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