CN212851095U

CN212851095U - Desk lamp control circuit based on single chip microcomputer control

Info

Publication number: CN212851095U
Application number: CN202021859041.3U
Authority: CN
Inventors: 季侠
Original assignee: Hefei Panxin Electronic Co ltd
Current assignee: Hefei Panxin Electronic Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-03-30
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a desk lamp control circuit based on single chip microcomputer control, which comprises a control chip, a key circuit, an illumination sensing circuit, an infrared sensing circuit and a LED lamp circuit, wherein the control chip is electrically connected with the key circuit, the illumination sensing circuit, the infrared sensing circuit and the LED lamp circuit respectively; the key circuit transmits a control signal to the control chip; the illumination sensing circuit senses environmental illumination intensity data and transmits the environmental illumination intensity data to the control chip, the infrared sensor circuit senses a human body infrared signal of a user and transmits the human body infrared signal to the control chip, and the control chip controls the LED lamp circuit to be switched on and off. The utility model discloses a switch operation of setting up control chip control desk lamp, through the operational mode of button circuit control desk lamp, through setting up illumination sensing circuit response environment light intensity data under automatic mode, can be according to ambient brightness automatically regulated illumination to through setting up infrared sensing circuit response user human body signal, when user operating time overlength, remind the tired needs of user to have a rest.

Description

Desk lamp control circuit based on single chip microcomputer control

Technical Field

The utility model belongs to the technical field of lighting apparatus, especially, relate to a desk lamp control circuit based on single chip microcomputer control.

Background

The desk lamp is popular with people all the time, and has various types and functions. People often use table lamps for illumination in life and study. The desk lamp is popular because of its simplicity, convenience, good lighting effect, good saving of electric energy, and convenience in work and study. People often sit for a long time when working and studying, the working state of the desk lamp is not changed, and physical and psychological health of people is damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a desk lamp control circuit based on single chip microcomputer control, through the switch operation of setting up control chip control desk lamp, through the operational mode of button circuit control desk lamp, through setting up illumination sensing circuit response ambient light intensity data under automatic mode, can throw light on according to ambient brightness automatically regulated to through setting up infrared sensing circuit response user human body signal, when user operating time overlength, remind the tired needs of user to have a rest.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a desk lamp control circuit based on single chip microcomputer control, including control chip, keying circuit, illumination sensing circuit, infrared sensing circuit and LED lamp circuit, control chip respectively with keying circuit, illumination sensing circuit, infrared sensing circuit and LED lamp circuit electric connection; the key circuit transmits a control signal to the control chip; the illumination sensing circuit senses environmental illumination intensity data and transmits the environmental illumination intensity data to the control chip, the infrared sensor circuit senses a human body infrared signal of a user and transmits the human body infrared signal to the control chip, and the control chip controls the LED lamp circuit to be switched on and off; the key circuit comprises a key S1, a key S2, a key S3 and a key S4; one ends of the keys S1, S2, S3 and S4 are grounded; the other ends of the keys S1, S2, S3 and S4 are respectively connected with 12-15 pins of the control chip; the illumination sensing circuit comprises an optical coupler U1 and a first amplifier; the output end of the optical coupler U1 is connected with the input end of the amplifier; the output end of the first amplifier is connected with a pin 2 of the control chip; the infrared sensing circuit comprises an infrared sensor and a second amplifier, and the infrared sensor is connected with the input end of the second amplifier; the output end of the second amplifier is connected with a pin 3 of the control chip; the LED lamp circuit comprises a light emitting diode D1; the cathode of the light emitting diode D1 is grounded; the anode of the LED D1 is connected in series with a matching resistor R13 and connected with the 11 pins of the control chip.

Further, the control chip is an M8p625 single chip microcomputer; the pin 1 of the control chip is grounded; the 4 pins of the control chip are connected with a voltage source VPP; and the pin 20 of the control chip is connected with a voltage source VDD.

Further, the keys S1, S2, S3 and S4 include an on-off key and a mode selection key; the mode selection key selects the working mode of the illuminating lamp, and the working mode comprises a manual mode and an automatic mode; the key S1 is connected with a matching resistor R9 in series to the 12 feet of the control chip; the key S2 is connected with a matching resistor R10 in series to the pin 13 of the control chip; the key S3 is connected with a matching resistor R11 in series to the 14 pins of the control chip; the key S4 is connected in series with a matching resistor R12 to the 15 feet of the control chip U4.

Furthermore, a pin 5 of the first amplifier is grounded, and a pin 4 of the first amplifier is connected with a voltage source VCC; and a pin 3 of the first amplifier is connected with an output end of an optical coupler U1.

The utility model discloses following beneficial effect has:

the utility model discloses a switch operation of setting up control chip control desk lamp, through the operational mode of button circuit control desk lamp, through setting up illumination sensing circuit response environment light intensity data under automatic mode, can be according to ambient brightness automatically regulated illumination to through setting up infrared sensing circuit response user human body signal, when user operating time overlength, remind the tired needs of user to have a rest.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a circuit diagram of a desk lamp control circuit based on single chip microcomputer control;

FIG. 2 is a circuit diagram of a key circuit;

FIG. 3 is a circuit diagram of an illumination sensing circuit;

FIG. 4 is a circuit diagram of an infrared sensing circuit;

fig. 5 is a circuit diagram of an LED lamp circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-5, the utility model relates to a desk lamp control circuit based on single chip microcomputer control, which comprises a control chip, a key circuit, an illumination sensing circuit, an infrared sensing circuit and an LED lamp circuit, wherein the control chip is electrically connected with the key circuit, the illumination sensing circuit, the infrared sensing circuit and the LED lamp circuit respectively; the key circuit transmits a control signal to the control chip; the illumination sensing circuit senses environmental illumination intensity data and transmits the environmental illumination intensity data to the control chip, the infrared sensor circuit senses a human body infrared signal of a user and transmits the human body infrared signal to the control chip, and the control chip controls the LED lamp circuit to be switched on and off;

the control chip is an M8p625 singlechip; the pin 1 of the control chip is grounded; the 4 pins of the control chip are connected with a voltage source VPP; 20 pins of the control chip are connected with a voltage source VDD;

the key circuit comprises a key S1, a key S2, a key S3 and a key S4; one ends of the keys S1, S2, S3 and S4 are grounded; the other ends of the keys S1, S2, S3 and S4 are respectively connected with pins 12-15 of the control chip; the keys S1, S2, S3, and S4 include an on/off key and a mode selection key; the mode selection key selects the working mode of the illuminating lamp, and the working mode comprises a manual mode and an automatic mode; the key S1 is connected with a matching resistor R9 in series to the 12 feet of the control chip; the key S2 is connected with a matching resistor R10 in series to the pin 13 of the control chip; the key S3 is connected with a matching resistor R11 in series to the 14 feet of the control chip; the key S4 is connected with a matching resistor R12 in series to the 15 feet of the control chip U4;

the illumination sensing circuit comprises an optical coupler U1 and a first amplifier; the output end of the optical coupler U1 is connected with the input end of the amplifier; the output end of the first amplifier is connected with a pin 2 of the control chip; a pin 5 of the first amplifier is grounded, and a pin 4 of the first amplifier is connected with a voltage source VCC; the 3 pin of the first amplifier is connected with the output end of the optical coupler U1;

the infrared sensing circuit comprises an infrared sensor and a second amplifier, and the infrared sensor is connected with the input end of the second amplifier; the output end of the second amplifier is connected with a pin 3 of the control chip;

the LED lamp circuit comprises a light emitting diode D1; the cathode of the light emitting diode D1 is grounded; the anode of the LED D1 is connected in series with a matching resistor R13 and connected with the 11 pins of the control chip.

The application adopts an M8p625 single chip microcomputer as a control chip; the automatic mode and the manual mode can be selected based on the key circuit; the LED desk lamp is controlled to flicker to remind a user of having a rest for a period of time; sensing the brightness of the surrounding environment based on a light sensor, and adjusting the brightness state of the LED lamp; the sensing user can be automatically turned on and turned off to remind the user of having a rest due to fatigue, illumination can be automatically adjusted according to ambient brightness, manual operation can be achieved, and intelligentization of the desk lamp is achieved.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a desk lamp control circuit based on single chip microcomputer control, includes control chip, keying circuit, illumination sensing circuit, infrared sensing circuit and LED lamp circuit, its characterized in that: the control chip is respectively electrically connected with the key circuit, the illumination sensing circuit, the infrared sensing circuit and the LED lamp circuit; the key circuit transmits a control signal to the control chip; the illumination sensing circuit senses environmental illumination intensity data and transmits the environmental illumination intensity data to the control chip, the infrared sensing circuit senses a human body infrared signal of a user and transmits the human body infrared signal to the control chip, and the control chip controls the LED lamp circuit to be switched on and off;

the key circuit comprises a key S1, a key S2, a key S3 and a key S4; one ends of the keys S1, S2, S3 and S4 are grounded; the other ends of the keys S1, S2, S3 and S4 are respectively connected with 12-15 pins of the control chip;

the illumination sensing circuit comprises an optical coupler U1 and a first amplifier; the output end of the optical coupler U1 is connected with the input end of a first amplifier; the output end of the first amplifier is connected with a pin 2 of the control chip;

2. The desk lamp control circuit based on the single chip microcomputer control of claim 1, wherein the control chip is an M8p625 single chip microcomputer; the pin 1 of the control chip is grounded; the 4 pins of the control chip are connected with a voltage source VPP; and the pin 20 of the control chip is connected with a voltage source VDD.

3. The desk lamp control circuit based on the single chip microcomputer control of claim 1, wherein the keys S1, S2, S3 and S4 comprise an on-off key and a mode selection key; the mode selection key selects the working mode of the illuminating lamp, and the working mode comprises a manual mode and an automatic mode;

the key S1 is connected with a matching resistor R9 in series to the 12 feet of the control chip; the key S2 is connected with a matching resistor R10 in series to the pin 13 of the control chip; the key S3 is connected with a matching resistor R11 in series to the 14 pins of the control chip; the key S4 is connected in series with a matching resistor R12 to the 15 feet of the control chip U4.

4. The desk lamp control circuit based on the single chip microcomputer control of claim 1, wherein a pin 5 of the first amplifier is grounded, and a pin 4 of the first amplifier is connected with a voltage source VCC; and a pin 3 of the first amplifier is connected with an output end of an optical coupler U1.