CN113873709A

CN113873709A - Lighting lamp

Info

Publication number: CN113873709A
Application number: CN202111128219.6A
Authority: CN
Inventors: 朱文辉
Original assignee: Ningbo Shaq Electronics Co ltd
Current assignee: Ningbo Shaq Electronics Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2021-12-31

Abstract

The invention relates to the technical field of lamps and discloses an illuminating lamp, which adopts the technical scheme that the illuminating lamp comprises an inductor and a power supply, wherein a light intensity detection module, a central processing unit, a power supply processing module and a human body induction module are arranged in the inductor, the human body induction module is used for inducing whether a person exists or not, when the person exists, the human body induction module sends a signal to the central processing unit to enable an LED light source to be turned on, when the person does not exist under the LED light source, the LED light source can be turned off in time to save electric quantity, the LED light source continuously executes the action of on-off circulation according to a PWM signal, a detection unit detects the ambient brightness in a short-time interval of off, the influence of the brightness of the LED light source can be avoided, the ambient brightness can be more accurately obtained, and the central processing unit can adjust the brightness of the LED light source according to the brightness value, therefore, in the process of illuminating the LED light source, the illumination brightness of the LED light source is adjusted in real time according to different environment brightness of the position where the LED light source is located.

Description

Lighting lamp

Technical Field

The invention relates to the technical field of lamps, in particular to an illuminating lamp.

Background

The existing lighting lamp, such as a sound-controlled or light-controlled lamp, controls the on and off of an LED light source through sensitivity to sound or sensitivity to illumination, realizes lighting, and is widely applied to real life;

the sensor is arranged inside the lampshade, the installation position of the sensor is very close to the LED lamp bead, when the LED light source is on, the brightness around the LED light source can reach more than 5000LUX, so that the sensor is difficult to detect the ambient brightness outside and control the brightness of the LED light source.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a lighting lamp which is used for reducing the influence of an LED light source on the brightness value of the external environment when a sensor detects the brightness value of the external environment.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an illumination lamp, includes inductor and power, be provided with luminous intensity detection module, central processing unit, power processing module and human response module in the inductor, human response module is used for the response to exist, luminous intensity detection module includes detecting element, detecting element basis the PWM signal detection ambient brightness of power and generate the luminance value, central processing unit basis the luminance value, control power processing module changes the duty cycle of power.

As a further improvement of the present invention, a brightness table and a frequency table are preset in the detection unit, the brightness table is configured with a light intensity and a duty ratio corresponding to the light intensity, the brightness table uses the brightness value as an index, the power supply processing module executes the duty ratio under the corresponding light intensity, the frequency table is configured with a PWM and a detection frequency corresponding to the PWM, the frequency table uses a PWM signal of the power supply as an index, and the detection unit executes the detection frequency under the corresponding PWM.

As a further improvement of the present invention, the human body sensing module includes a sound receiving unit, the sound receiving unit is configured to receive environmental sounds and generate volume information, and the detection unit changes the detection frequency according to the volume information.

As a further improvement of the present invention, the volume information includes a vertical volume indicating a volume level in a vertical direction and a lateral volume indicating a volume level in a horizontal direction, the detection unit decreases the detection frequency and the power supply processing module decreases the duty ratio of the power supply when the vertical volume or/and the lateral volume decreases, and the detection unit increases the detection frequency and the power supply processing module increases the duty ratio of the power supply when the vertical volume or/and the lateral volume increases.

As a further improvement of the present invention, a ratio is preset in the power supply processing module, and when the duty ratio reaches the ratio, the power supply stops increasing the duty ratio.

As a further improvement of the present invention, the vertical volume and the horizontal volume both include a current volume and a next volume, a difference between the current volume and the next volume is a volume difference, an error threshold is preset in the sound receiving unit, and the sound receiving unit receives volume information when the volume difference is smaller than the error threshold.

As a further improvement of the present invention, the volume information further includes a lateral sound source direction, the lateral sound source direction characterizes a source direction of the lateral sound volume, the power supply processing module reduces the power supply duty ratio at a position deviating from the lateral sound source direction when the lateral sound volume is reduced, and the reduction of the duty ratio is larger than that of the power supply duty ratio.

As a further improvement of the present invention, the transverse volume includes a head end signal and a tail end signal, the receiving time interval of the head end signal and the tail end signal is a time difference, an interval threshold is preset in the radio unit, and when the source directions of the head end signal and the tail end signal are opposite and the time difference is within the interval threshold, the power supply processing module controls the duty ratio of the power supply to reach the ratio.

The invention has the beneficial effects that: according to the LED illumination device, the human body induction module sends a signal to the central processing unit when a person exists, so that the LED light source is turned on, when no person exists under the LED light source, the LED light source can be turned off in time, the effect of saving electric quantity is achieved, the LED light source continuously executes the on-off cycle action according to the PWM signal, the detection unit detects the ambient brightness in the off short interval, the ambient brightness can be obtained more accurately without being influenced by the brightness of the LED light source, and the central processing unit can adjust the brightness of the LED light source according to the brightness value, so that the illumination brightness of the LED light source can be adjusted in real time according to different ambient brightness of the position in the LED light source illumination process.

Drawings

Fig. 1 is a block diagram of the present invention.

Reference numerals: 1. a power source; 2. a light intensity detection module; 3. a central processing unit; 4. a power supply processing module; 5. a human body induction module; 6. an LED light source.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1, the lighting fixture of the present embodiment includes an inductor and a power supply 1, the inductor is provided with a light intensity detection module 2, a central processing unit 3, a power supply processing module 4 and a human body sensing module 5, the human body sensing module 5 is used for sensing whether a person exists, when a person exists, the human body sensing module 5 sends a signal to the central processing unit 3 to turn on the LED light source 6, when no person exists under the LED light source 6, the LED light source 6 can be turned off in time to save electricity, the light intensity detection module 2 includes a detection unit, the width of PWM is adjusted in advance, the detection unit detects the ambient brightness according to the PWM signal of the power supply 1 and generates a brightness value, the PWM is a pulse width modulation, the pulse width modulation is an analog control mode, the bias of the base electrode of the transistor or the gate electrode of the MOS transistor is modulated according to the change of the corresponding load, so as to change the conduction time of the transistor or the MOS transistor, therefore, the output of the switching stabilized voltage power supply 1 is changed, the central processing unit 3 controls the power supply processing module 4 to change the duty ratio of the power supply 1 according to the brightness value, the duty ratio refers to the proportion of the electrifying time relative to the total time in a pulse cycle, the brightness of the LED light source 6 can be controlled by changing the duty ratio, the LED light source 6 continuously executes the action of on-off cycle according to the PWM signal, the detection unit detects the ambient brightness in the transient interval of off, the ambient brightness can be accurately obtained without being influenced by the brightness of the LED light source 6, the central processing unit 3 can adjust the brightness of the LED light source 6 according to the brightness value, the illumination brightness of the LED light source 6 is adjusted in real time according to different ambient brightness at the position in the illumination process of the LED light source 6, the human body induction module 5 comprises a sound receiving unit for receiving ambient sound, and the volume information is generated, the volume information comprises the volume, the detection unit changes the detection frequency according to the volume information, the change of the volume is received through the radio unit, when the volume is smaller or tends to be 0, the detection frequency can be set to be 0, at the moment, the LED light source 6 is in a closed state, along with the continuous increase of the volume sound, the detection frequency can be improved, the ambient brightness is changed from the ambient brightness detected by the lighting and extinguishing cycle of every ten LED light sources 6 to the ambient brightness detected by the lighting and extinguishing cycle of every two LED light sources 6, better illumination is provided for pedestrians, in the process that the volume is reduced, the detection times can be saved.

Referring to fig. 1, a brightness table and a frequency table are preset in the detection unit, the brightness table is configured with light intensity and duty ratio corresponding to the light intensity, the brightness table uses the brightness value as an index, the power processing module 4 executes the duty ratio under the corresponding light intensity, different duty ratios are selected according to different light intensities, so that the change of the brightness of the LED light source 6 is more accurate, the frequency table is configured with PWM and detection frequency corresponding to the PWM, the frequency table uses the PWM signal of the power supply 1 as an index, the detection unit executes the detection frequency under the corresponding PWM, the time period when the detection unit detects the ambient brightness is the time period when the LED light source 6 is off is ensured, the detection is prevented from being performed when the LED light source 6 is on, and the detection accuracy is improved.

Referring to fig. 1, the volume information includes a vertical volume representing a volume level in a vertical direction and a horizontal volume representing a volume level in a horizontal direction, and the detection unit decreases the detection frequency when the vertical volume or/and the horizontal volume is decreased, and the power processing module 4 decreases the duty ratio of the power supply 1, which indicates that the pedestrian is farther from the LED light sources 6, and the detection frequency may be set to change from detecting the ambient brightness every two on/off cycles of the LED light sources 6 to detecting the ambient brightness every ten on/off cycles of the LED light sources 6, and decrease the duty ratio of the power supply 1, that is, decrease the brightness of the LED light sources 6, according to the judgment of the vertical volume and the horizontal volume that the pedestrian is moving in the vertical direction, that is, moving up/down or moving in the horizontal direction, reach the effect of using electricity sparingly, when vertical volume or/and horizontal volume increase, detecting element improves and detects the frequency, and power processing module 4 increases power 1's duty cycle, at this moment, it is more and more near to show pedestrian and LED light source 6's distance, improve and detect the frequency, can set up to follow every ten LED light source 6 bright and go out to cycle and detect once ambient brightness and change into every two LED light source 6 bright and go out to cycle and detect once ambient brightness, and improve LED light source 6's luminance, ensure pedestrian's illumination, the ratio has been preset in power processing module 4, when the duty cycle reaches the ratio, power 1 stops to increase the duty cycle, when the duty cycle reaches the ratio, LED light source 6's luminance reaches the highest power under the normal operating condition, prevent LED light source 6's damage.

Referring to fig. 1, the vertical volume and the horizontal volume both include a current volume and a next volume, a difference value between the current volume and the next volume is a volume difference, an error threshold is preset in the radio unit, the radio unit receives volume information that the volume difference is smaller than the error threshold, and eliminates sudden sound emission of pedestrians or other objects, so that the LED light source 6 lights up, and when a pedestrian is farther away from the LED light source 6, the volume is suddenly increased, so that the brightness of the LED light source 6 is increased, and the electric quantity can be saved. Volume information still includes horizontal sound source direction, the source direction of horizontal sound source direction representation horizontal volume, when horizontal volume reduces, power processing module 4 reduces the power 1 duty cycle that deviates from horizontal sound source direction department, and the reduction of this duty cycle is greater than the reduction of power 1 duty cycle, set up LED light source 6 to a plurality of luminous points, when horizontal volume reduces, then it is more and more far away from LED light source 6 to show the pedestrian, when the pedestrian is existing in LED light source 6 left side, reduce the luminance that is located the LED light source 6 on right side, and the luminance reduction of the LED light source 6 on right side is greater than the luminance reduction of left side LED light source 6, can save the electric quantity, make left LED light source 6 go out earlier, the LED light source 6 on right side goes out later, save the electric quantity in guaranteeing the illumination to the pedestrian. The transverse volume comprises a head end signal and a tail end signal, the head end signal is represented in a unit time, the unit time can be set to be 2-5 seconds, the transverse volume is received firstly, the tail end signal is represented in the same unit time, the transverse volume is received latest, the receiving time interval of the head end signal and the tail end signal is time difference, an interval threshold value is preset in the sound receiving unit, when the source directions of the head end signal and the tail end signal are opposite, at the moment, the existence of a plurality of pedestrians can be represented, and pedestrians exist on the left side and the right side of the LED light source 6, the brightness of the whole LED light source 6 is maximum, the time difference is located in the interval threshold value, the duty ratio of the power supply 1 is controlled by the power supply processing module 4 to reach a specific value, the distance between the pedestrians on the two sides is similar in the unit time, when the time difference exceeds the interval threshold value, the time difference indicates that the unit time is in the unit time, the distance between pedestrians on both sides of the LED light source 6 is relatively long.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. An illumination lamp, comprising an inductor and a power supply (1), characterized in that: be provided with light intensity detection module (2), central processing unit (3), power processing module (4) and human response module (5) in the inductor, whether human response module (5) are used for the response to exist, light intensity detection module (2) include detecting element, detecting element basis the PWM signal detection environment luminance of power (1) and generate the luminance value, central processing unit (3) basis luminance value, control power processing module (4) change the duty cycle of power (1).

2. A lighting fixture as recited in claim 1, wherein: the detection unit is internally preset with a brightness table and a frequency table, the brightness table is configured with light intensity and duty ratio corresponding to the light intensity, the brightness table takes the brightness value as an index, the power supply processing module (4) executes the duty ratio under the corresponding light intensity, the frequency table is configured with PWM and detection frequency corresponding to the PWM, the frequency table takes PWM signals of the power supply (1) as an index, and the detection unit executes the detection frequency under the corresponding PWM.

3. A lighting fixture as recited in claim 2, wherein: the human body induction module (5) comprises a sound receiving unit, the sound receiving unit is used for receiving environmental sounds and generating volume information, and the detection unit changes the detection frequency according to the volume information.

4. A lighting fixture as recited in claim 3, wherein: the volume information comprises a vertical volume and a horizontal volume, the vertical volume represents the volume in the vertical direction, the horizontal volume represents the volume in the horizontal direction, when the vertical volume or/and the horizontal volume is decreased, the detection unit decreases the detection frequency, and the power supply processing module (4) decreases the duty ratio of the power supply (1), when the vertical volume or/and the horizontal volume is increased, the detection unit increases the detection frequency, and the power supply processing module (4) increases the duty ratio of the power supply (1).

5. A lighting fixture as recited in claim 4, wherein: the power supply processing module (4) is internally preset with a ratio, and when the duty ratio reaches the ratio, the power supply (1) stops increasing the duty ratio.

6. A lighting fixture as recited in claim 5, wherein: the vertical volume and the horizontal volume both comprise a current volume and a next volume, the difference value between the current volume and the next volume is a volume difference, an error threshold value is preset in the sound receiving unit, and the sound receiving unit receives volume information of which the volume difference is smaller than the error threshold value.

7. A lighting fixture as recited in claim 5, wherein: the volume information further comprises a lateral sound source direction characterizing a source direction of the lateral volume, the power supply processing module (4) reducing the duty cycle of the power supply (1) away from the lateral sound source direction when the lateral volume is reduced by an amount greater than the reduction of the duty cycle of the power supply (1).

8. A lighting fixture as recited in claim 7, wherein: the transverse volume comprises a head end signal and a tail end signal, the receiving time interval of the head end signal and the tail end signal is a time difference, an interval threshold value is preset in the sound receiving unit, and when the source directions of the head end signal and the tail end signal are opposite, and the time difference is located in the interval threshold value, the power supply processing module (4) controls the duty ratio of the power supply (1) to reach the ratio.