CN113966028A

CN113966028A - Three-section light-adjustable human body inductor

Info

Publication number: CN113966028A
Application number: CN202111232951.8A
Authority: CN
Inventors: 陈仪; 何权昌
Original assignee: Century Concept Ltd
Current assignee: Century Concept Ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-01-21

Abstract

The invention discloses a three-section dimmable human body sensor which comprises a relay, a photosensitive part and an MCU (microprogrammed control unit) controller, and is characterized in that the photosensitive part comprises an infrared induction controller electrically connected with one end of the MCU controller, the MCU controller is additionally connected with an isolation dimmer and the relay, the isolation dimmer and the relay are connected with an LED (light emitting diode) lamp, the MCU controller is connected with voltage zero crossing detection and fed back to a voltage input end through a lead, the voltage input end is communicated with the MCU controller through a voltage reduction, rectification and stabilization device, the MCU controller controls the luminosity power of the LED lamp, and the LED lamp comprises three sections of adjustable brightness and is adjusted by the MCU controller. The invention uses low power consumption parts and the output uses a relay, the power consumption of the whole machine is low when the whole machine works, the light-sensitive parts sense the ambient luminosity, the whole machine does not work in a bright environment (such as daytime), the luminosity is controllable in three time periods, the brightness of each time period can be independently set, compared with the traditional sensing switch, the functions are comprehensive, and the power consumption is greatly saved.

Description

Three-section light-adjustable human body inductor

Technical Field

The invention relates to the technical field of inductors, in particular to a three-section dimmable human body inductor.

Background

The response lamp, a novel intelligence illumination product that lights through response module automatic control light source, the response lamp adopts imported technology MCU circuit design to form, and active infrared ray working method has and stabilizes well, characteristics such as anti-interference strong, has the infrared mode of decoding, and the wide application requires occasions such as higher business and industry. Is a new generation of green energy-saving lighting lamp. The induction lamp can be automatically turned on for illumination, and can be automatically turned off in a delayed manner after people leave, so that the artificial waste of energy is avoided, the service life of the electric appliance is prolonged, and the functions of energy conservation, convenience and security are integrated. The automatic switch control circuit is actually an automatic switch control circuit, and has various types, the on-off (namely, light-on) modes of the switch comprise 'sound control', 'triggering', 'induction', 'light control' and the like, and the on-off modes are basically the same and are controlled by a delay circuit (automatically switched off after working for a period of time). You can see some of the following if you are interested: in the pressing type, a capacitor is arranged below the pressing type capacitor, the capacitor is very thin, voltage and resistance change can be caused by force, namely the pressing type capacitor is a so-called pressure-sensitive capacitor, the voltage change is amplified by an amplifying circuit, and a timing circuit and a relay are connected. The full-automatic human body infrared induction switch is suitable for automatic illumination, air draft and the like in places such as corridors, warehouses, garages, basements, washrooms and the like. The modernization of building intellectualization and property management is really reflected.

In the prior art, the conventional induction lamp still has some defects, which are less than 1: the general inductive switch is only opened and closed, and is not suitable for parking lots and the like; and less than 2: some standby controllers usually only have one gear and cannot adjust light, so that the whole lighting system cannot save energy and is relatively power-consuming.

Based on the above, the invention designs the three-section dimmable human body sensor to solve the above problems.

Disclosure of Invention

The invention aims to provide a three-section dimmable human body sensor, which aims to solve the problems that the traditional induction lamp still has some defects in the prior art, and the defects are as follows, namely, the three-section dimmable human body sensor is as follows: the general inductive switch is only opened and closed, and is not suitable for parking lots and the like; and less than 2: some to-be-controlled devices usually have only one gear and cannot adjust light, and the whole lighting system cannot save energy and is relatively power-consuming.

In order to achieve the purpose, the invention provides the following technical scheme:

the three-section dimmable human body sensor comprises a relay, a photosensitive part and an MCU (microprogrammed control unit) controller, and is characterized in that the photosensitive part comprises an infrared induction controller electrically connected with one end of the MCU controller, the MCU controller is additionally connected with an isolation dimmer and the relay, the isolation dimmer and the relay are connected with an LED lamp, the MCU controller is connected with voltage zero-crossing detection and fed back to a voltage input end through a lead, the voltage input end is communicated with the MCU controller through a voltage reduction rectification voltage stabilizing device, the MCU controller controls the luminosity power of the LED lamp, the LED lamp comprises three sections of adjustable brightness and is adjusted by the MCU controller, concretely, the LED lamp comprises three sections of T1, T2 and T3, when an infrared signal is sensed, the LED lamp works in a T1 time period, and the luminosity power can be set by a program of the MCU controller, the working time of the LED lamp is adjusted by a potentiometer; after the T1 time is over, the next dimming time is entered, the brightness can be determined by a code pulling switch or a potentiometer externally connected with the MCU controller or the generator, 4 kinds of brightness can be set, the working time is adjusted by the externally connected potentiometer, the time is entered into the T3 time after the T2 time, the micro-bright state can be set by the MCU controller at the moment, or the output is closed.

As a further scheme of the invention, the MCU controller can be used for time adjustment, brightness adjustment and dimming gear adjustment.

As a further scheme of the invention, an infrared human body induction control circuit is arranged in the infrared induction controller.

As a further scheme of the invention, the MCU controller comprises a plurality of functional pins, and the functions of each pin can be controlled according to the program requirements.

As a further scheme of the invention, an isolation dimming circuit and a relay control circuit are arranged in the isolation dimmer and the relay.

Compared with the prior art, the invention has the beneficial effects that:

the three-section dimmable human body sensor has the advantages that the low-power-consumption part is used, the magnetic protection relay is used for outputting, the power consumption of the whole machine is low during the work, the light-sensitive part is used for sensing the ambient luminosity, the whole machine does not work in a bright environment (such as daytime), the luminosity is controllable in three time periods, the brightness of the whole machine can be set independently in each time period, compared with the traditional induction switch, the three-section dimmable human body sensor is comprehensive in function, and the power consumption is greatly saved.

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 the drawings without creative efforts.

FIG. 1 is a schematic connection diagram of a three-segment dimmable human body sensor according to the present invention;

FIG. 2 is a schematic diagram of the control phase of a three-segment dimmable human body sensor according to the invention;

FIG. 3 is a power schematic of a three-segment dimmable human body inductor according to the invention;

FIG. 4 is a schematic diagram of an infrared body-sensing control circuit of a three-segment dimmable body sensor according to the present invention;

FIG. 5 is a schematic circuit diagram of an MCU controller of the three-segment dimmable human body sensor according to the present invention;

FIG. 6 is a schematic diagram of a relay control circuit and an isolated dimming circuit of a three-segment dimmable human body sensor according to the present invention;

fig. 7 shows power consumption data measured at the output and shutdown of five products.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-6, the present invention provides a three-segment dimmable human body sensor, wherein,

FIG. 1 is a schematic connection diagram of a three-segment dimmable human body sensor according to the present invention; FIG. 2 is a schematic diagram of the control phase of a three-segment dimmable human body sensor according to the invention; as shown in the figures 1-2 of the drawings,

when an infrared signal is sensed, the device will operate for a time period T1, where the photometric power can be set by the MCU program, and the following example operates at 100% power. The working time is adjusted by a potentiometer, the T1 time is calculated from the time when no signal is sensed by infrared, and the calculation of the time is restarted if the signal is sensed again after the T1 time is not finished; after the T1 time is over, the next dimming time is started, the brightness can be determined by a program or a code pulling switch or a potentiometer externally connected with the generator, and the working time is adjusted by the externally connected potentiometer; after a time T2, the program enters a time T3, which is set to a bright state or the output is turned off. And returning to the working state within the time T1 after the infrared signal is sensed again.

FIG. 3 is a power schematic of a three-segment dimmable human body inductor according to the invention; as shown in figure 3 of the drawings,

the input voltage passes through a F1 fuse, then passes through a R1 resistor, reaches a C1 capacitor, is rectified by BR1, is filtered by C2, and is stabilized by 15V by a ZD1 voltage regulator tube. R3, ZD2 and Q1 form a voltage stabilizing 5V line, and are output after being filtered by C3.

FIG. 4 is a schematic diagram of an infrared body-sensing control circuit of a three-segment dimmable body sensor according to the present invention; as shown in figure 4 of the drawings,

the pin 16 of U1 outputs 3.3V reference voltage, the PIR element senses infrared signal, and the signal is combined with C12 and R9 to output to pin 3 of U1 control chip. The U-shaped signal amplifier is characterized in that 1-stage signal amplification is formed by peripheral parts of

pins

3, 2 and 1 of U1 and an internal circuit of U1, 2-stage signal amplification is formed by external parts of

pins

4, 5 and 6 of U1 and an internal circuit of U1, and the signal is amplified in two stages and then is output through pins 10 under the control of internal operation.

And secondly, a first section T1 time control is formed by 11-pin peripheral parts VR1, R8 and C13 of the U1 and internal circuits, when the PIR part does not sense a signal, the time control can be output for a long time (for example, the time for turning on a lamp is turned off after a person walks), VR1 is an external adjustable resistor, VR1 is adjusted, and the delay time can be adjusted from 30 seconds to 30 minutes.

And thirdly, the 8 pins of the U1 are brightness signal input pins, the light induction circuit in the figure 5 controls and outputs signals to the 8 pins of the U1 through the MCU, and through internal logic analysis, only when high level is input, the 10 pins can output control signals.

FIG. 5 is a schematic circuit diagram of an MCU controller of the three-segment dimmable human body sensor according to the present invention; as shown in figure 5 of the drawings,

the current functions of each leg are as follows:

the pin 1 is used for luminosity output, the output signal is controlled and used by U1 in fig. 4, 20 pins and peripheral parts R15, VR2, C17, CDS and R18 form a photosensitive circuit, the CDS senses ambient brightness, VR2 adjusts the brightness to output the signal, the luminosity of the following example can be adjusted in the range of 10lux-1000lux, and the day-time operation is realized.

The 10-pin senses the output signal of the U3 in fig. 4, and when the signal of the U3 is not received, the T2 time dimming control in fig. 1 is performed, and the T2 time delay is formed by the output signal and peripheral parts R16, VR3, C16 and R17 of the 19-pin, in the following example, VR3 is adjusted, and the delay time can be adjusted from 30 seconds to 30 minutes. The 4-level luminosity adjustable control is formed by the 5 th pin, the 6 th pin, the peripheral parts R10, R11, R52, R53 and SW, and the 4 states of the SW are pulled out, so that the output brightness can be correspondingly controlled to be 60%,50%,30% and 10%.

And the pin 15 is an output pin of the control relay.

The 16 pins are dimming output pins and are PWM signals, and the output duty ratio is a corresponding percentage brightness signal.

The pin 13 and peripheral parts R20, R21, ZD3 and C19 form a voltage zero-crossing signal detection circuit, as shown in the figure, when the input voltage is detected to be near a zero crossing point, an on or off signal of the control relay is output to control the voltage of the LED power supply to be on or off at a low voltage, the flashover phenomenon of a contact of the output relay during switching is reduced, and the service life of a product can be greatly prolonged.

FIG. 6 is a schematic diagram of a relay control circuit and an isolated dimming circuit of a three-segment dimmable human body sensor according to the present invention; as shown in figure 6 of the drawings,

firstly, in a RELAY control circuit, when the RELAY is just started, a RELAY signal is in a low level, Q5 and Q6 are in an off state, 15V voltage is supplied by R30 through Q5, Q5 is conducted, a power supply charges C24 through Q5 and a K1 magnetic latching RELAY coil, and the RELAY is in an off state in the current direction at the moment. When the RELAY signal is at high level, Q7 is switched on because of the high level of G, Q5 is switched off because of the discharge reduction of G pole voltage from Q5, Q6 is switched on because of the high level of G, C24 voltage discharges through Q6 and K1 coil, at this moment, K1 coil current direction makes the RELAY attract, because K1 is a magnetic latching RELAY, the RELAY can be switched off or attracted by the charge and discharge of C24, after the charge and discharge of C24 is finished, the state is kept by the magnet in the RELAY, so the loss is extremely low. After the relay is closed, the LED power supply works, and the LED lamp emits light.

And the dimming PWM signal is amplified by R23 and Q2 and then acts on a light coupling U3 and is connected to the 15V voltage anode through a resistor R22. The PWM signal conversion path is formed by the parts of R25, C21, R26, C20, R27, Q3, Q4 and C22 after optical coupling. The 0-10V voltage output by the dimming power supply is adjusted to be the percentage voltage corresponding to the duty ratio of PWM through the PWM signal conversion circuit after the opto-coupler isolation, and the output power corresponding to the LED power supply is adjusted to achieve the purpose of dimming.

The three-section dimmable human body sensor disclosed by the invention uses the low-power-consumption part, the relay is used for outputting, the power consumption is low when the whole machine works, the light-sensitive part is used for sensing the ambient luminosity, the three-section dimmable human body sensor does not work in a bright environment (such as daytime), the luminosity can be controlled in three time periods, the brightness can be independently set in each time period, and compared with the traditional inductive switch, the three-section dimmable human body sensor has more comprehensive functions, the power consumption is greatly saved

The preferred embodiments of the invention disclosed above are intended to be illustrative only. 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 the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The three-section dimmable human body sensor comprises a relay, a photosensitive part and an MCU (microprogrammed control unit) controller, and is characterized in that the photosensitive part comprises an infrared induction controller electrically connected with one end of the MCU controller, the MCU controller is additionally connected with an isolation dimmer and the relay, the isolation dimmer and the relay are connected with an LED lamp, the MCU controller is connected with voltage zero-crossing detection and fed back to a voltage input end through a lead, the voltage input end is communicated with the MCU controller through a voltage reduction rectification voltage stabilizing device, the MCU controller controls the luminosity power of the LED lamp, the LED lamp comprises three sections of adjustable brightness and is adjusted by the MCU controller, concretely, the LED lamp comprises three sections of T1, T2 and T3, when an infrared signal is sensed, the LED lamp works in a T1 time period, and the luminosity power can be set by a program of the MCU controller, the working time of the LED lamp is adjusted by a potentiometer; after the T1 time is over, the next dimming time is entered, the brightness can be determined by the MCU controller or the code pulling switch or the potentiometer externally connected with the generator, 4 kinds of brightness can be set by connecting the two code pulling switches, the working time is adjusted by the externally connected potentiometer, the time is entered into the T3 time after the T2 time, the micro-bright state can be set by the MCU controller at the time, or the output is closed.

2. The three-segment dimmable human body sensor according to claim 1, wherein said MCU controller is capable of time adjustment, brightness adjustment and dimming gear adjustment.

3. The three-segment dimmable human body sensor according to claim 1, wherein an infrared human body sensing control circuit is provided in the infrared sensing controller.

4. The three-segment dimmable human body sensor according to claim 1, wherein the MCU controller comprises a plurality of functional pins, and functions of each pin can be controlled according to a program requirement.

5. The three-segment dimmable human body inductor of claim 1, wherein an isolation dimming line, a relay control line, is provided within the isolation dimmer and the relay.