CN220526566U - Screen brightness self-adaptive adjusting type universal meter - Google Patents
Screen brightness self-adaptive adjusting type universal meter Download PDFInfo
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- CN220526566U CN220526566U CN202322156922.9U CN202322156922U CN220526566U CN 220526566 U CN220526566 U CN 220526566U CN 202322156922 U CN202322156922 U CN 202322156922U CN 220526566 U CN220526566 U CN 220526566U
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Abstract
The utility model discloses a screen brightness self-adaptive adjusting type universal meter, which comprises a universal meter body, wherein a PCB main board and a display screen module are arranged on the universal meter body, a main control chip is arranged on the PCB main board, the display screen module comprises a display screen and a screen backlight plate, and the universal meter further comprises a photoelectric conversion assembly, a brightness value processing module, a brightness judging module and a screen brightness adjusting module; the device can automatically adjust the screen brightness to the corresponding brightness according to the change of the ambient brightness in real time, realize the self-adaptive adjustment of the screen brightness, is favorable for watching the indication on the screen, and is convenient to use by combining and utilizing the light sensor to detect the ambient light and automatically adjust to a moderate brightness level, so that the user experience is greatly improved, and the safety of high-altitude operation is effectively ensured while the electricity is saved.
Description
Technical Field
The utility model relates to electricity measuring equipment, in particular to a screen brightness self-adaptive adjustment type universal meter.
Background
The universal meter is a magneto-electric instrument capable of measuring various electrical parameters such as AC, DC, voltage and resistance, and is a multifunctional and multi-range measuring instrument. The universal meter is widely used for manufacturing and overhauling various electric equipment and has flexible and convenient measurement and multiple functions, but is inconvenient to use in places with poor light conditions, such as mines, outdoor high voltage and other severe working conditions, dim light environment or dazzling illumination, and difficult screen reading during measurement. The traditional universal meter needs to adjust screen brightness through the button, needs under specific setting mode, uses the direction key to select "back light" option, through using direction key or adjust knob to adjust back light brightness, selects required luminance level, and a plurality of luminance levels are optional, need select suitable luminance level according to service environment and use needs, and it is comparatively loaded down with trivial details to adjust, especially to the single operation of adverse circumstances (high altitude, underground) need switch button many times to adjust suitable luminance, not only operating efficiency is low and use comparatively dangerous.
The utility model discloses a universal meter that automatic change specialty teaching was used is disclosed to bulletin number CN205091380U among the prior art, including universal meter body, mechanical zero adjustment knob, power key, turn over page key, record storage key, main display screen, second display screen, screen brightness adjustment key, conversion knob isotructure, screen brightness adjustment key can adjust the luminance of screen according to actual environment, needs to adjust repeatedly during the use, adjusts loaded down with trivial details, and operating efficiency is low. The utility model discloses a digital multimeter of adjustable illumination brightness among the prior art in the publication No. CN214669267U, including the multimeter, the front top of multimeter is provided with the fluorescent screen, the bottom of fluorescent screen is provided with the scale circle, one side of scale circle is provided with miniature fluorescent lamp, this multimeter can see the numerical value on the screen in the place that light is dark through fluorescent screen and miniature fluorescent lamp, fluorescence is the process that the object was converted the energy of absorbing light into light radiation, after fluorescent material received the excitation of light, in the in-process that the transition got back to the ground state, the absorbed energy was radiated out in the form of light (electromagnetic wave). The fluorescent screen can realize the purpose of automatically changing the brightness by utilizing the fluorescent principle, but the fluorescent screen has better use effect in dark environment, and has general use effect under dazzling illumination, the automatic brightness adjusting effect can not reach the best, and the use feeling is poor during operation.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the screen brightness self-adaptive adjustment type universal meter which has the advantages of simple structure, reasonable design, automatic adjustment of screen brightness, better adjustment effect and better use feeling.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a screen brightness self-adaptation regulation formula universal meter, includes the universal meter body, be equipped with PCB mainboard and display screen module on the universal meter body, be equipped with main control chip on the PCB mainboard, display screen module includes display screen and screen backlight unit, still includes:
the photoelectric conversion assembly is positioned above the display screen and close to the display screen, and comprises a plurality of light sensors, a sensor accommodating groove is formed in the top end of the front surface of the universal meter body, the plurality of light sensors are integrated on the PCB main board, and the detection ends of the light sensors are positioned in the sensor accommodating groove;
the brightness value processing module is arranged in the main control chip and is used for converting the electric signals of the light sensors into ambient light brightness values, and averaging all the ambient light brightness values to define an actual brightness average value;
the brightness judging module is arranged in the main control chip, a plurality of brightness interval ranges are preset in the brightness judging module, each brightness interval range is correspondingly provided with a screen display brightness value, the brightness judging module is connected with the brightness value processing module, and the brightness judging module receives the actual brightness average value output by the brightness value processing module and judges which brightness interval range the actual brightness average value belongs to, so that a corresponding screen display brightness value is obtained;
the screen brightness adjusting module is arranged in the main control chip, is connected with the brightness judging module and the screen backlight plate, receives the screen display brightness value of the brightness judging module, and then adjusts the screen backlight plate so as to control the display brightness of the display screen.
As the preferable technical scheme, the periphery cladding of universal meter body has the rubber overcoat, photoelectric conversion subassembly locates universal meter body front top is avoided the rubber overcoat department.
As a preferable technical scheme, the outer surface of the sensor accommodating groove is covered with a transparent glass layer.
As a preferable technical scheme, a plurality of the light sensors are arranged in a row along the width direction of the display screen.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that: the device can automatically adjust the screen brightness to the corresponding brightness according to the change of the ambient brightness in real time, realize the self-adaptive adjustment of the screen brightness, is favorable for watching the indication on the screen, and is convenient to use by combining and utilizing the light sensor to detect the ambient light and automatically adjust to a moderate brightness level, so that the user experience is greatly improved, and the safety of high-altitude operation is effectively ensured while the electricity is saved.
Drawings
The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model.
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a block diagram of an embodiment of the present utility model;
FIG. 3 is a schematic diagram of an embodiment of the present utility model;
in the figure: 100-a multimeter body; 200-a display screen module; 210-displaying a screen; 220-screen backlight plate; 300-a photoelectric conversion component; 310-light sensor; 320-a sensor accommodation groove; 400-a brightness value processing module; 500-a brightness judging module; 600-screen brightness adjustment module.
Detailed Description
The utility model is further illustrated in the following, in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present utility model are described by way of illustration only. It is needless to say that the person skilled in the art realizes that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive in scope.
As shown in FIG. 1, the universal meter with self-adaptive adjustment of screen brightness comprises a universal meter body 100, wherein a PCB main board and a display screen module 200 are arranged on the universal meter body 100, a main control chip is arranged on the PCB main board and is a core component of the PCB main board, the main control chip of the universal meter is the prior art adopted by the current universal meter on the market, and various signals collected by processing are processed in the main structure of the universal meter for loading and running functions. The display screen module 200 includes a display screen 210 and a screen backlight plate 220, where the display screen 210 is a liquid crystal display screen, and is electrically connected to the main control chip, and is used for displaying various measured electricity, such as current, voltage, resistance value, etc.; the screen backlight plate 220 is a light source device for ensuring the back of the liquid crystal display to emit light, the screen backlight plate 220 is also electrically connected with the main control chip, and the brightness of the screen backlight plate 220 is regulated by the main control chip, so as to control the brightness of the screen.
The device is used for solving the problem of automatic brightness adjustment of a screen, and adds a plurality of new structures and new functional modules on the basis of the existing universal meter, and the screen brightness self-adaptive adjustment type universal meter further comprises a photoelectric conversion component 300, a brightness value processing module 400, a brightness judging module 500 and a screen brightness adjusting module 600.
Referring to fig. 2, the photoelectric conversion assembly 300 is located above the display screen 210 and near the display screen 210, and includes a plurality of light sensors 310, a sensor accommodating groove 320 is disposed at the top end of the front surface of the multimeter body 100, the plurality of light sensors 310 are integrated on the PCB motherboard, the detection end of each light sensor 310 is located in the corresponding sensor accommodating groove 320, the outer surface of each sensor accommodating groove 320 is covered with a transparent glass layer, and the glass layer is used for protecting the corresponding light sensor 310, so as to prevent the light sensor 310 from being exposed outside, and meanwhile, the glass layer has a light transmission effect, so that the detection of the corresponding light sensor 310 is not affected; in order to ensure the effect of detecting the ambient light of the photoelectric conversion assembly 300, a plurality of light sensors 310 are simultaneously disposed, and the plurality of light sensors 310 detect light at the same time, so as to ensure the accuracy of the detection result, and the device is mainly used for adjusting the brightness on the display screen 210, so that the position of the light sensor 310 close to the display screen 210 is better, and simultaneously, in order to avoid the light shielding of the ambient light by the hand when an operator holds the multimeter, the light sensor 310 is close to the head position of the multimeter, and the plurality of light sensors 310 are arranged in rows along the width direction of the display screen 210. The periphery cladding of universal meter body 100 has the rubber overcoat, the setting of rubber overcoat is the design commonly used on the current universal meter for protection universal meter damages with colliding with, photoelectric conversion subassembly 300 is located universal meter body 100 openly top is avoided rubber overcoat department avoids by the rubber overcoat shelters from. During the ambient light detection process, each light sensor 310 generates an electrical signal and transmits the electrical signal to the brightness value processing module 400. The light sensor 310 mainly comprises a photosensitive element, wherein the photosensitive element is a photoresistor, a photodiode, a phototriode and a silicon photocell, and the photosensitive element can convert a light signal into an electric signal.
Referring to fig. 2 and 3, the brightness value processing module 400 is disposed in the main control chip, and is configured to convert the electrical signal of each light sensor 310 into an ambient light brightness value, and average all the ambient light brightness values to define an actual brightness average; the purpose of the averaging is to obtain a more accurate luminance value, and in the averaging process, when a certain luminance value deviates from other luminance values obviously, the luminance value can be filtered and removed, so that the accuracy of the average value is prevented from being influenced.
Referring to fig. 2 and 3, the brightness determining module 500 is disposed in the main control chip, a plurality of brightness interval ranges are preset in the brightness determining module 500, each brightness interval range has a corresponding screen display brightness value, the brightness determining module 500 is connected with the brightness value processing module 400, and the brightness determining module 500 receives the actual brightness average value output by the brightness value processing module 400 and determines which brightness interval range the actual brightness average value belongs to, thereby obtaining the corresponding screen display brightness value. By setting the brightness interval range and the screen display brightness value corresponding to each interval range, the screen display brightness value can be divided into a plurality of different brightness levels for adapting to different environments, when the ambient light brightness changes within a certain range, the corresponding screen display brightness value does not change, and the condition that the screen brightness change is too sensitive and the observation of numerical values on the display screen 210 is influenced can be avoided.
Referring to fig. 2 and 3, the screen brightness adjusting module 600 is disposed in the main control chip, the screen brightness adjusting module 600 is connected with the brightness judging module 500 and the screen backlight plate 220, and the screen brightness adjusting module 600 receives the screen display brightness value of the brightness judging module 500 and then adjusts the screen backlight plate 220 to control the display brightness of the display screen 210.
The present device senses ambient light mainly by the sensitivity of the light sensor 310, for example, the screen brightness corresponding to ambient light in daytime is 50%, the screen brightness corresponding to ambient light at night is smoothly adjusted to 80%, and the screen brightness corresponding to strong light under direct sun is adjusted to 20%.
The device can automatically adjust the screen brightness to the corresponding brightness according to the change of the ambient brightness in real time, realize the self-adaptive adjustment of the screen brightness, is favorable for watching the indication on the screen, and is convenient to use by combining and utilizing the light sensor 310 to detect the ambient light and automatically adjust to a moderate brightness level, thereby greatly improving the user experience, saving electricity and effectively ensuring the safety of high-altitude operation.
The foregoing has shown and described the basic principles, main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a screen brightness self-adaptation adjustment formula universal meter, includes the universal meter body, be equipped with PCB mainboard and display screen module on the universal meter body, be equipped with main control chip on the PCB mainboard, display screen module includes display screen and screen backlight unit, its characterized in that still includes:
the photoelectric conversion assembly is positioned above the display screen and close to the display screen, and comprises a plurality of light sensors, a sensor accommodating groove is formed in the top end of the front surface of the universal meter body, the plurality of light sensors are integrated on the PCB main board, and the detection ends of the light sensors are positioned in the sensor accommodating groove;
the brightness value processing module is arranged in the main control chip and is used for converting the electric signals of the light sensors into ambient light brightness values, and averaging all the ambient light brightness values to define an actual brightness average value;
the brightness judging module is arranged in the main control chip, a plurality of brightness interval ranges are preset in the brightness judging module, each brightness interval range is correspondingly provided with a screen display brightness value, the brightness judging module is connected with the brightness value processing module, and the brightness judging module receives the actual brightness average value output by the brightness value processing module and judges which brightness interval range the actual brightness average value belongs to, so that a corresponding screen display brightness value is obtained;
the screen brightness adjusting module is arranged in the main control chip, is connected with the brightness judging module and the screen backlight plate, receives the screen display brightness value of the brightness judging module, and then adjusts the screen backlight plate so as to control the display brightness of the display screen.
2. The screen brightness adaptive adjustment type multimeter of claim 1 wherein: the outer periphery of the universal meter body is coated with a rubber jacket, and the photoelectric conversion assembly is arranged at the top end of the front surface of the universal meter body and avoids the rubber jacket.
3. The screen brightness adaptive adjustment type multimeter of claim 1 wherein: the outer surface of the sensor accommodating groove is covered with a transparent glass layer.
4. The screen brightness adaptive adjustment type multimeter of claim 1 wherein: the plurality of light sensors are arranged in a row in a width direction of the display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322156922.9U CN220526566U (en) | 2023-08-11 | 2023-08-11 | Screen brightness self-adaptive adjusting type universal meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322156922.9U CN220526566U (en) | 2023-08-11 | 2023-08-11 | Screen brightness self-adaptive adjusting type universal meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220526566U true CN220526566U (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322156922.9U Active CN220526566U (en) | 2023-08-11 | 2023-08-11 | Screen brightness self-adaptive adjusting type universal meter |
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| Country | Link |
|---|---|
| CN (1) | CN220526566U (en) |
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2023
- 2023-08-11 CN CN202322156922.9U patent/CN220526566U/en active Active
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