阅读说明：本技术 自调光灯管和调光方法 (Self-dimming lamp tube and dimming method ) 是由 姚忠新 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种自调光灯管以及调光方法,其中自调光灯管包括管体、光源、摄影模块、感光模块、信号处理模块和主控制器,管体的两端设置有堵头,管体设置有铝基板,铝基板设置有驱动模块；光源封装于铝基板上并和驱动模块电连接；摄像模块至少设置有两个,摄像模块设置在堵头的外侧；感光模块和摄像模块电连接,并根据摄像模块采集的图像信息,提取环境因素并得到检测信号；信号处理模块内置于堵头,和感光模块电连接,并对检测信号进行差分放大,并生成亮度信号；主控制器,接收亮度信号,并控制铝基板的驱动模块的输出电流。剔除影响检测精确度的共模干扰信号,有效根据环境中的真实亮度来进行对灯管的输出亮度进行精确调节。(The invention discloses a self-dimming lamp tube and a dimming method, wherein the self-dimming lamp tube comprises a tube body, a light source, a photographing module, a photosensitive module, a signal processing module and a main controller, wherein plugs are arranged at two ends of the tube body, the tube body is provided with an aluminum substrate, and the aluminum substrate is provided with a driving module; the light source is packaged on the aluminum substrate and is electrically connected with the driving module; the number of the camera modules is at least two, and the camera modules are arranged on the outer side of the plug; the photosensitive module is electrically connected with the camera module, and extracts environmental factors and obtains a detection signal according to image information acquired by the camera module; the signal processing module is arranged in the plug and is electrically connected with the photosensitive module, and is used for carrying out differential amplification on the detection signal and generating a brightness signal; and the main controller receives the brightness signal and controls the output current of the driving module of the aluminum substrate. Common mode interference signals influencing detection accuracy are eliminated, and the output brightness of the lamp tube is effectively and accurately adjusted according to the real brightness in the environment.)

1. A self-dimming lamp tube, comprising:

the device comprises a pipe body (100), wherein plugs (110) are arranged at two ends of the pipe body (100), an aluminum substrate (120) is arranged on the pipe body (100), and a driving module is arranged on the aluminum substrate (120);

the light source (200) is packaged on the aluminum substrate (120) and is electrically connected with the driving module;

at least two camera modules (300) are arranged, and the camera modules (300) are arranged on the outer side of the plug (110);

the photosensitive module (400) is electrically connected with the camera module (300), and extracts environmental factors and obtains a detection signal according to the image information acquired by the camera module (300);

the signal processing module (500) is arranged in the plug (110), is electrically connected with the photosensitive module (400), and is used for carrying out differential amplification on the detection signal and generating a brightness signal;

and the main controller (600) is respectively electrically connected with the signal processing module (500) and the aluminum substrate (120), receives the brightness signal and controls the output current of the driving module of the aluminum substrate (120).

2. A self-dimming light pipe according to claim 1, wherein the signal processing module (500) comprises:

a differential amplification module (510) for simultaneously receiving at least two of the detection signals from the photosensitive module (400) and differentially amplifying the detection signals to generate a differential amplified signal;

a conversion module (520) that converts the differentially amplified signal into a differentially amplified digital signal;

and the data processing module (530) generates a brightness signal according to the differential amplification digital signal and transmits the brightness signal to the main controller (600).

3. A self-dimming lamp tube according to claim 1, wherein the inner side wall of the tube body (100) is provided with a clamping groove (130), and the aluminum substrate (120) is embedded in the clamping groove (130).

4. A self-dimming lamp tube according to claim 1, wherein the plugs (110) are sleeved at both ends of the tube body (100).

5. Self-dimming light tube according to claim 1 or 4, wherein the plug (110) is provided with an opening (111), a cover plate (112) is detachably connected to the opening (111), a lens (113) is mounted on the cover plate (112), and the camera module (300) is arranged in the lens (113).

6. A dimming method for a self-dimming lamp as claimed in any one of claims 1 to 5, comprising the steps of:

s1, each camera module (300) collects images of a specific area in the environment;

s2, synchronously transmitting a plurality of image information collected by the camera module (300) to the photosensitive module (400), and obtaining a plurality of detection signals by the photosensitive module (400) according to environmental factors;

s3, synchronously transmitting the detection signals to the signal processing module (500), carrying out differential amplification on the detection signals by the signal processing module (500), suppressing common mode interference signals in the detection signals, and outputting brightness signals;

s4, the main controller (600) controls the current value output by the driving module according to the comparison between the received brightness signal and the brightness set value.

7. The dimming method according to claim 6, wherein the detection signal received in step S3 is an analog signal, and the output brightness signal is a digital signal.

Technical Field

The invention relates to the field of lighting appliances, in particular to a self-dimming lamp tube and a dimming method.

Background

The LED lamp tube is characterized in that the LED is used as a lamp tube of a luminous body as a light source, compared with a fluorescent lamp tube, the LED lamp tube is more energy-saving, low in price, long in service life, resistant to falling and simple in structure, and is a good substitute of the future fluorescent lamp tube, the existing control mode of the brightness of the lamp tube is completed through a simple mechanical switch, and a plurality of lamps are all full-bright regardless of the brightness condition of the external environment, so that electricity is wasted, light is too strong, and human eyes are damaged or have other adverse effects.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a self-dimming lamp tube which can adjust the brightness according to the luminosity in the environment.

The invention also provides a dimming method for the self-dimming lamp tube.

The self-dimming lamp tube comprises a tube body, a light source, a photographing module, a photosensitive module, a signal processing module and a main controller, wherein plugs are arranged at two ends of the tube body, the tube body is provided with an aluminum substrate, and the aluminum substrate is provided with a driving module; the light source is packaged on the aluminum substrate and is electrically connected with the driving module; at least two camera modules are arranged, and the camera modules are arranged on the outer side of the plug; the photosensitive module is electrically connected with the camera module, and extracts environmental factors and obtains a detection signal according to the image information acquired by the camera module; the signal processing module is arranged in the plug and electrically connected with the photosensitive module, and is used for carrying out differential amplification on the detection signal and generating a brightness signal; the main controller is electrically connected with the signal processing module and the aluminum substrate respectively, receives the brightness signal and controls the output current of the driving module of the aluminum substrate.

The self-dimming lamp tube provided by the embodiment of the invention at least has the following beneficial effects: the detection signals tested in the photosensitive modules are subjected to differential amplification, common mode interference signals influencing detection accuracy are eliminated, accurate brightness signals are extracted, output current is adjusted according to the brightness signals, and accurate adjustment of output brightness of the lamp tube is effectively carried out according to real brightness in the environment.

According to some embodiments of the present invention, the signal processing module includes a differential amplification module, a conversion module and a data processing module, the differential amplification module receives at least two of the detection signals from the light sensing module at the same time and differentially amplifies the detection signals to generate differentially amplified signals; the conversion module converts the differential amplification signal into a differential amplification digital signal; and the data processing module generates a brightness signal according to the differential amplification digital signal and transmits the brightness signal to the main controller.

According to some embodiments of the invention, the inner side wall of the tube body is provided with a clamping groove, and the aluminum substrate is embedded into the clamping groove.

According to some embodiments of the present invention, the plug is sleeved at two ends of the pipe body.

According to some embodiments of the invention, the plug is provided with an opening, the opening is detachably connected with a cover plate, the cover plate is provided with a lens, and the camera module is arranged in the lens.

The dimming method according to the second aspect of the present invention is applied to the self-dimming lamp tube of the first aspect, and includes the following steps:

s1, each camera module collects images of a specific area in the environment;

s2, synchronously transmitting a plurality of image information collected by the camera module to the photosensitive module, and obtaining a plurality of detection signals by the photosensitive module according to environmental factors;

s3, synchronously transmitting the detection signals to the signal processing module, carrying out differential amplification on the detection signals by the signal processing module, suppressing common mode interference signals in the detection signals, and outputting brightness signals;

and S4, comparing the received brightness signal with a brightness set value by the main controller, and controlling the current value output by the driving module.

The dimming method provided by the embodiment of the invention has at least the following beneficial effects: the detection signals tested in the photosensitive modules are subjected to differential amplification, common mode interference signals influencing detection accuracy are eliminated, accurate brightness signals are extracted, output current is adjusted according to the brightness signals, and accurate adjustment of output brightness of the lamp tube is effectively carried out according to real brightness in the environment.

According to some embodiments of the present invention, the detection signal received in step S3 is an analog signal, and the output luminance signal is a digital signal.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic diagram of a self-dimming lamp according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a self-dimming lamp (without a tube, a lens, and a camera module) according to an embodiment of the invention;

fig. 3 is a schematic view of a plug of a self-dimming lamp according to an embodiment of the invention;

FIG. 4 is a schematic view illustrating an assembly of a tube body and an aluminum substrate of a self-dimming lamp according to an embodiment of the invention;

fig. 5 is a schematic diagram of a camera module, a photosensitive module, a signal processing module and a main controller of the self-dimming lamp tube according to the embodiment of the invention;

fig. 6 is a flowchart of a dimming method according to an embodiment of the invention.

100. A pipe body; 110. a plug; 111. an opening; 112. a cover plate; 113. a lens; 120. an aluminum substrate; 130. a card slot; 200. a light source; 300. a camera module; 400. a photosensitive module; 500. a signal processing module; 510. a differential amplification module; 520. a conversion module; 530. a data processing module; 600. and a main controller.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 5, a self-dimming lamp according to an embodiment of the present invention includes a tube 100, a light source 200, a photographing module, a photosensitive module 400, a signal processing module 500, and a main controller 600, wherein plugs 110 are disposed at two ends of the tube 100, the tube 100 is provided with an aluminum substrate 120, and the aluminum substrate 120 is provided with a driving module; the light source 200 is packaged on the aluminum substrate 120 and electrically connected with the driving module; at least two camera modules 300 are arranged, and the camera modules 300 are arranged on the outer side of the plug 110; the photosensitive module 400 is electrically connected with the camera module 300, and extracts environmental factors and obtains a detection signal according to the image information acquired by the camera module 300; the signal processing module 500 is arranged in the plug 110, is electrically connected with the photosensitive module 400, and differentially amplifies the detection signal to generate a brightness signal; the main controller 600 is electrically connected to the signal processing module 500 and the aluminum substrate 120, respectively, receives the brightness signal, and controls an output current of a driving module of the aluminum substrate 120.

The detection signals tested in the light sensing modules 400 are subjected to differential amplification, common mode interference signals influencing detection accuracy are eliminated, accurate brightness signals are extracted, output current is adjusted according to the brightness signals, and accurate adjustment of output brightness of the lamp tube is effectively carried out according to real brightness in the environment.

It should be mentioned that, in the self-dimming lamp, an external power source, such as 220v commercial power, is driven by the driving module, and the light source 200 on the aluminum substrate 120 is driven to light up, wherein, since the brightness of the light source 200 is related to the light emitting power of the light source 200, the brightness of the light output by the light source 200 is effectively adjusted by adjusting the current output by the driving module.

In addition, the light source 200 may be an LED lamp bead.

Referring to fig. 6, in the above adjustable lamp, the dimming method includes the following steps:

s1, each camera module 300 collects images of a specific area in the environment;

each camera module 300 is fixed in direction, so that each camera module 300 can collect an image of an environment aligned with the camera module 300;

s2, synchronously transmitting a plurality of image information collected by the camera module 300 to the photosensitive module 400, and obtaining a plurality of detection signals by the photosensitive module 400 according to environmental factors;

the camera modules 300 and the photosensitive modules 400 are in one-to-one correspondence, an image collected by one camera module 300 is transmitted to a specific photosensitive module 400 for signal processing, and in the same time, the images collected by a plurality of camera modules 300 are all subjected to signal processing by the corresponding photosensitive modules 400.

S3, the detection signals are synchronously transmitted to the signal processing module 500, and the signal processing module 500 performs differential amplification on the detection signals, suppresses common mode interference signals in the detection signals, and outputs a luminance signal;

it should be mentioned that the signal processing module 500 includes a differential amplifying module 510, a converting module 520 and a data processing module 530, the differential amplifying module 510 receives at least two of the detection signals from the light sensing module 400 at the same time, and performs differential amplification on the detection signals to generate differential amplified signals; the conversion module 520 converts the differentially amplified signal into a differentially amplified digital signal; the data processing module 530 generates a brightness signal according to the differential amplified digital signal and transmits the brightness signal to the main controller 600.

When a plurality of detection signals are synchronized to the signal processing module 500, the detection signals are input to the differential amplification module 510, and the detection signals are differentially amplified, so as to suppress the common-mode interference signal and amplify the differential signal, for the detection signals, the environmental factors (such as electromagnetism and temperature) except the ambient light in the detection signals are the common-mode interference signals, and after the influence of the other environmental factors is suppressed by the differential amplification module 510, the detection signals are processed by the conversion module 520, so that the differential amplification signals in the step S3 are converted into digital signals and input to the main controller 600 for processing.

S4, the main controller 600 compares the received brightness signal with the brightness setting value to control the current value outputted by the driving module.

If the brightness value represented by the brightness signal is greater than the brightness set value, reducing the output current value; if the brightness value represented by the brightness signal is smaller than the brightness set value, the output current value is increased, and the requirements of users are met.

It should be mentioned that the inner side wall of the tube 100 is provided with a slot 130, and the aluminum substrate 120 is embedded in the slot 130. When the aluminum substrate 120 is installed, the aluminum substrate is embedded into the card slot 130 for installation, which is convenient and fast.

It should be noted that the plug 110 is sleeved on both ends of the pipe body 100. The plugs 110 are disposed at two ends of the tube 100 for fixing and connecting to an external power source.

It should be noted that, referring to fig. 2 to 4, the plug 110 is provided with an opening 111, the opening 111 is detachably connected with a cover plate 112, the lens 113 is installed on the cover plate 112, and the camera module 300 is disposed in the lens 113. The photographing module installed in the lens 113 can directly collect image data of an external environment through the lens 113, thereby performing subsequent signal processing.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.