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The main components of the LED display
cob led display1. The metal frame as a whole, which operates apparently to compensate for the internal structure, has various circuits for solar panels, including screen device parts or cob led display parts, and changes the power supply
2. Display unit: It is the main part of the LED, which is composed of Led and wiring. Indoor displays may be model displays with various requirements, and outdoor screens are modular loads.
3. Scanning control board: The purpose of this circuit board is a special buffer to create various scanning instructions and task-level grayscale processing signs.
4. Switching power supply: Convert 220V AC into a considerable amount of suitable current to supply different circuits.
5. Transmission cable: The display data and various control signals generated by the main controller are transmitted to the screen by twisted pair cables.
6. Main controller: buffer, transform and reorganize the input in RGB electronic digital online film transmission, and generate various management pulses.
7. Special exhibition greeting cards and multimedia greeting cards: plus the basic functions of a notebook computer, and output computerized RGB symptoms and signals, combined with the above characteristics, multi-press can also convert the input analog movie instructions into electronic electronic digital RGB instructions (such as , video recording).
like:
ufacturing process of LED exhibits under COB
The main transmission purpose of LED display
What is the role of the LED display? -
Endoscopic imaging core technology
endoscope for saleImaging camera lens: In the endoscope for sale past, the spherical style was adopted, and the aberration deformation increased, resulting in unclear image, change of field of view, and narrow field of view. Aspheric designs and styles consist of spherical and non-planar surface areas. By changing the curvature of the lens, the lens can focus light on a repaired focus, correct the picture, solve problems such as distortion in the visual industry, and make the camera lens lighter, thinner and flatter.
Image sensor: An indicator that senses the conversion of an optical image into output details and is a key component of a digital camera. Divided into demand paired elements (CCD) and oxide steel semiconductor factors. CCDs have high resolution, wide active arrays, low distortion, yet use a lot of strength and high quality. rare.
Image Noise Reduction: Reduce noise in digital images. In the endoscopic camera system, the particularity of the scene requires special processing according to the minimally invasive surgical procedure to meet the requirements of analysis and treatment. The motion of the endoscope produces a blurred image, allowing the noise reduction algorithm to filter out pixels that are perceived to be moving relatively slowly relative to the object.
In this way, the picture is very clear for accurate analysis by medical professionals, and the edge improvement technology set generates clear blood vessels for easy analysis and use. False color imaging, electronic filtering and other systems, some are inconspicuous or this is the manifestation of early skin lesions.
Edge Enhancement: The focus is on improving the high quality and recognizability of the appearance, making your impression useful for viewing or additional examinations, and supporting the physician's comprehensive view of unnatural phenomena in cells. It is also an important method in endoscopic photographs.
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Industrial endoscope measurement method
Fields of application of endoscopes
The basic principle of endoscopy is
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Advantages of Bluetooth Headphones
Convenient and custom headphones with logo practical, sensible and handy for drivers and company owners.
Communicate freely, use wireless headsets to answer cell phone calls, completely free your hands for other activities and save a lot of time.
Improve performance, the application of Bluetooth headset can improve the efficiency of work and calls, making work easier and faster.
Reduce cell phone radiation
Even if the light from the phone is negligible, it is tiring to leave the phone alone for a while to fix it. Using a Bluetooth headset not only avoids radiation from your phone, it also makes answering calls very easy. Reducing cell phone radiation is reportedly a clear benefit for Bluetooth headsets.
protect personal safety
After the new traffic law, it is actually illegal to drive on the phone, so using wireless headphones can solve this problem, and there are serious consequences when driving. When traveling, wireless headphones not only ensure you don't miss an important call, but also allow you to focus more on driving. This guarantees protection without loss of information.
release your hands
In addition to driving, you can even wear a bluetooth headset in daily life, such as on a crowded bus or subway, you can let the bluetooth headset come in handy, you can even use the bluetooth headset to solve calls and work at the same time. More and more More wifi headsets start to assist voice assistants, which means that wireless headsets in addition to mobile phones may also unlock more usage environments.
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Advantages of custom headphones
What is the principle of noise-cancelling earplugs?
Features of Personalized Headphones
Edited by sndjhsksidsng - 5/8/2022, 03:26 -
E-cigarettes are a useful tool for quitting smoking
Results of randomized trials suggest that disposable vape e-cigarettes help smokers quit, and e-cigarettes release nicotine, doubling long-term quit rates. A recent randomized trial involving nearly 900 members found that e-cigarettes were actually nearly twice as competitive as pure nicotine replacement therapy in helping tobacco users quit within 1-12 months.
Despite the rapid spread of e-cigarettes in the UK and US, smoking prices have fallen (Wang et al, 2018 ONS, 2019). In the UK, details of a time-frame assessment found that increases in e-cigarette use among smokers in England were actually positively associated with increases in total cessation price and cost of cessation success. This result is supported by a U.S. Census study that showed a significant increase in smoking cessation rates among e-cigarette consumers.
The data are observational and cannot show triggers and outcomes, but they do strengthen the evidence that e-cigarettes have not interrupted the decline in tobacco use. But there is no data to suggest that e-cigarette use has slowed the decline in youth tobacco use. In fact, smoking rates among U.S. teens have declined even faster since the popularity of e-cigarettes. Never-smokers who smoke do expose themselves to avoidable health problems, but in the UK less than 1% of absolute never-smokers grow up to be standard tobacco users (Action on Smoking and Health, 2019).
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The different advantages of electronic cigarettes:
What are the benefits of e-cigarettes
The principle of electronic cigarette
Edited by sndjhsksidsng - 5/8/2022, 03:43 -
Metal container production and advantages
In the production of metal desk organizer metal packaging containers, tinplate is the main material. The continuous development and improvement of tinplate printing capabilities and processing technology has made it more and more popular. Compared with other materials, it has better cushioning, air barrier, moisture resistance, soft shading and fragrance retention, and better sealing to protect the goods.
The metal material carries a good birth success, the image signature is gorgeous and pleasing to the eye, and the obtained product packaging box is clear at a glance, which is a very good sales package. It can be made into various shapes as required, such as circle, rectangle, square, horseshoe, trapezoid, etc. The demand for product packaging of various commodities has made product packaging more varied and won the love of consumers.
The metal packaging box is beautiful and delicate, with metallic luster, and the color pattern printing enhances the beauty of the product and enriches the packaging stage. Shoppers choose products packaged in aluminum containers when giving gifts.
Metal packaging containers are environmentally friendly and green, tin cans can be reused and reprocessed, and recycled as much as possible. It is a very environmentally friendly packaging. Recover money, save potential and eliminate ambient air pollution. Even if it is sprinkled in the garden soil after rusting, it has no adverse effect on the environment. The metal box is clean, printed with suitable ink, and meets catering standards in terms of cleanliness
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Implementation of metal parts
Maintenance and upkeep of metal utensils
Advantages of metal containers -
How to choose a mobile phone display
1. Resolution: The better the nokia screen solution, the higher the equivalent PPI, the better the resolution of exhibits and edges, which is the premise that determines the quality of the display.
2. Refresh rate: The higher the refresh rate, the better. It is recommended to support refresh rate adaptation.
3. Pixel layout: the most effective is the arrangement of star to diamond, the edge is clear and the highest, and the viewing direction is better.
4. Display Color Calibration: The better the color calibration, the more accurate the color information and facts.
5. Lightweight light-emitting substrate: The light-emitting substrate directly affects the maximum brightness and power consumption of the display.
6. Other configurations: color depth (10bit and 8bit), touch sampling rate, substrate material, etc.
like:
Why is Nokia so tough?
Pros of Nokia 7plus
Nokia Display Features -
Why promote outdoor lighting
Colorful night picture lights, not only in the current urban landscape, but outdoor building lighting also provide people with night vision environment and living atmosphere.
The construction of urban lighting projects should adhere to the unified planning of urban lighting across the country, integrate its unique temperament, be exclusive, dazzling, delicate, and stay away from light pollution.
Economic Advantages The economic benefits associated with the distribution of urban lighting are enormous. With the continuous progress of modern society and the rapid growth and development of the overall economy, the construction of night light systems has been carried out in large, medium and small cities in my country.
To a certain extent, the establishment of these lighting projects is beneficial to society and individuals. For example, the construction of the commercial street lighting project has made the city more modern, the roads have become gorgeous, and the online business products of professional roads have been enhanced.
When people buy their favorite products on the new high street, the number of consumers on the high street increases proportionally, resulting in increased business turnover and increased national tax profits.
Urban lighting design is an indispensable part of modern urban life, and night scene lighting has become an important place in people's daily life. Better city, better everyday.
It is right that contemporary life cannot be separated from the city, but as a service provider of human life style, it is not enough to truly make the metropolis shine. It seems to run counter to the notion of dynamism and efficiency in local communities across the globe.
Therefore, many people believe that urban lighting setups cause a waste of money and energy, and question the construction of urban lighting effects distribution. This is a misunderstanding of the panorama of urban lighting environments.
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Common lights for outdoor lighting!
Classification of outdoor lighting
A few notes about landscape lighting: -
What measures does the LED screen take?
High temperature resistance, outdoor LED display usually has a large area, the application process consumes a lot of power, the corresponding heat dissipation is outdoor fixed led display large, and the temperature is also high. When the heat dissipation dilemma cannot be solved in time, it may cause problems such as heat generation and short circuit of the circuit board.
When manufacturing, make sure the display circuit board is good, and then try to use a hollow layout when making the case to help dissipate heat. During installation, according to the installation situation, keep the display screen in a good ventilation state, and install heat dissipation equipment on the display screen if necessary, such as installing an air conditioner or fan inside to help the display screen to dissipate heat.
Anti-typhoon, the installation position of the external screen is different, and the installation method is also different, such as wall type, inlaid type, column type, hanging type, etc. Then in the typhoon season, in order to keep the screen body of the LED display screen from falling, there are strict requirements on the load-bearing steel frame structure of the display screen. The engineering model must strictly default to all typhoon resistance grade specifications, and at the same time have a certain seismic capacity to ensure that the outdoor directional screen will not overturn and cause casualties and other dangers.
To avoid storms, there are several types of stormy weather in the south, so the LED display itself must have an excellent waterproof safety rating to protect itself from rain. In the outdoor use environment, the outdoor direct display should reach the IP65 safety level, the unit should be packaged with glue, the waterproof package should be determined, and the unit and the package must be connected with waterproof.
like:
How to choose outdoor LED screen?
Outdoor LED display installation measures
Specific requirements outdoor LED screen can do: -
Making the Tudor NATO strap
tudor strapNATO straps are made of straight-knit nylon, what makes them called "NATO" straps? This strap can only be obtained from stock. tudor strap At the time, the strap was only dark grey, 20mm wide, with a chrome-plated brass buckle, especially for military use. This gave it the name "NATO".
The new Tudor is the manufacturer most closely associated with NATO straps. As a member of the Rolex Group, Tudor adheres to the "highly personal" concept of Rolex watches, and this textile strap is also "self-made".
We take advantage of the manufacturing process of Tudor NATO straps to understand how the seemingly cheap NATO straps are made. The thread needs to be tied around the loom by hand and made with the equipment
We knit all our NATO belts in a workshop in Lyon, France. Lyon, another end of the Chinese Silk Street, Lyon's silk business has played a very important role in the city's prosperity and progress.
Punch greeting cards for manipulating the fabric evident on the right
Natural fibers such as cotton and silk, as well as man-made fibers such as polyethylene, are woven together to achieve the band's tones and combination programs. Notable are the leather ribbons that were introduced last year with the Traditions Ranger, the result of which, regardless of the camouflage style, is woven rather than dyed.
Once created, the correct length of the strap may be minimized for each watch segment.
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Features of nylon straps
Comparison of natural leather and nylon straps
Nylon watch strap cost-effective -
Proper use of vegetable and fruit dryer
Material selection and cleaning
Choose juicy fruits and vegetables. Strictly vegetable dryer machine select good varieties before the sun, remove rotten varieties, and remove rotten, overripe or immature varieties. In addition to melons, other types of vegetables and fruits can be washed with drinking water and dehydrated and decolorized, but should not be exposed to the sun.
cutting, blanching
Cut washed fruits and vegetables into cubes, shreds, chunks, and other desired shapes. As soon as the food is ready, the variety of fresh vegetables changes. Easy-to-cook greens are boiled in boiling water, and hard-to-cook fresh vegetables are gently boiled in boiling water for a while
cool, drain
Precooked fruits and vegetables are cooled immediately, rinsed with ice-cold drinking water, and quickly heated to standard temperature. Shortly after air conditioning, to reduce drying time, centrifuge dehydration or press degassing with simple professional methods. After the water has been emptied, it can be spread out to dry a little and cooked on a plate. dry
Choose different drying temperature, time, humidity items and drying process for different types of fruits and vegetables. During the whole drying process, the cold air passes through the heat exchanger, and the air in the drying chamber is heated by heat conduction, heat rays and heat convection. With the action of the hobbyist, every heat is radiated from the dry holding chamber. The new ambience is fully enthusiastic with all the materials. Under the action of the dehumidification bracket, the steam is discharged from the drying chamber to achieve the purpose of drying
Most fruits and vegetables are high in sugar and are prone to "glycation". Avoid high temperatures when drying
Dehumidification needs to be done. Good condition and color are inseparable from very good dehumidification. Try to avoid some larger, more natural shadows and model "fog" on the final project
likr:
Features of fruit, vegetable and fruit dryer
Vegetable and fruit drying process
Application field of fruit and vegetable dryer
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