Smart refrigerator: Real technology or fake girl?

Smart refrigerator: Real technology or fake girl?

Refrigerator is one of the earliest categories for smart start. More than ten years ago, several companies launched smart products. In 2014, the “whirlwind” of intelligent refrigerators was again scraped. This time it was a real thing, or was it just a gust of wind?

At the end of the last century, smart refrigerators appeared on the market. Representative companies are Electrolux and Haier: In 2000, Electrolux launched an Internet refrigerator, consumers can remotely learn about the refrigerator through the Internet, and through the refrigerator on the screen to query information such as public telephone; At the same time, Haier also tried We have built a technology alliance with international companies and increased capital investment to ensure that our company exceeds competitors in the field of intelligent refrigerators and reaches international standards.

Afterwards, many companies have joined the promotion of smart refrigerators. However, this "intelligence" is only the "intelligence" of the company's self-identification. China's standards for smart appliances were not finalized until 2011 and will begin on September 1, 2012. Formally implemented.

The "General Principles of Intelligent Technology for Intelligent Household Appliances", namely GB/T28219-2011, is the first unified standard for smart home appliances industry formulated in China. It is of great significance in guiding the development direction of smart home appliances in China, but surprisingly, the In the early stage of implementation, the standard was widely questioned by all walks of life. First of all, the “day of the day” introduced by the standard is wrong. Although smart home appliances have been blossomed all over China in 2011, the smart home appliances in the true sense are still in the starting stage and the future variables are too large. It is too early to introduce standards, and it is very difficult. Convinced; Second, the standard is not a mandatory standard, but the recommended standard, manufacturers voluntarily implement, unfortunately, there are not many companies actively involved.

So far, the "smart refrigerator" standard and smart home appliance standards have not yet appeared in the true sense.

Without standard intelligence, it is certainly not true intelligence. In fact, it is reasonable and appropriate for companies to be ahead of the standard in innovation. Although standards do not exist, the innovation of smart refrigerators by many home appliance companies since 2014 is indeed remarkable.

Changhong, Haier, Hisense, LG and other companies have introduced smart refrigerator products. Changhong's ChiQ refrigerator has cloud image recognition technology that can intelligently manage food and remind users to use it in time to prevent food from expiring; Haier's smart cloud refrigerator is equipped Intelligent cloud technology not only can be controlled remotely, but also realizes all-round active communication with users. Hisense's SMART smart cloud smart refrigerator uses Hisense's independently developed processing chip to realize food management, health stewardship, remote operation monitoring and entertainment. And other features; LG's smart refrigerator products with intelligent detection capabilities, through the built-in camera, consumers can use the phone or tablet PC to monitor the internal refrigerator, "smart housekeeping system" can also track the shelf life of the storage.

Based on the performance of the above companies, the definition of smart refrigerators in the industry has basically been satisfied in recent years. In 2010, British scientists predicted that smart refrigerators should be smart and personalized: They can monitor inventory in real time, tell users what they will eat for dinner, and they can take the initiative to place orders with supermarkets. They can scan foods in pre-dinner dishes and create reports. , you can create a personalized menu based on different regions and seasons...

Just four years later, these seemingly advanced ideas have now basically been realized, food management, food testing, remote control, voice control, active communication, big data, and interconnection with other products... Although the current refrigerator New products still cannot meet all the consumer's demands for intelligence, but compared with the hype of the fourteen years ago, these true and true technological innovations have indeed achieved a qualitative leap and brought unprecedented convenience to the lives of the general public. With the involvement of Internet companies and IT companies, the intelligentization of refrigerators is showing new development ideas. Although no one company has yet to redefine refrigerators through intelligence, the intrinsic impression of refrigerators has begun to reverse through the smart wave in 2014. Changes are happening, and change is also expected not far.

Flicker Free Led Driver


Light strobe, even when the radiation is still life, the naked eye can not detect the strobe, but also prone to visual fatigue, damage vision.

If it is to observe the moving objects (especially faster) and in the light under the fine work, not only depending on the material is unclear, the greater the damage to the eyes.

Questions about flicker-free light may arise at this point. To be fair, it should be pointed out that fluorescent tubes operated with conventional or low loss ballast also flicker at 100 Hz and the light output is reduced at lower ambient temperatures. Fluorescent lamps operated with an ECG, including energy saving lamps, work at 44 – 50 kHz so that the lamps normally do not flicker. In reality, however, things are a little different. While a higher switching frequency is used, the input capacitors are to small for cost reasons. This causes the high frequency circuit in the lamp to be supplied with a strongly pulsating voltage. This pulsation creates a brightness modulation in the emitted light which is why these lamps often have a rather high level of flicker at 100 Hz.


Features:

  • Input: input voltage range: 100-240Vac, max input voltage range: 100-347Vac.
  • Output: output power range: 24W-30W; output voltage range: 25-40Vdc.
  • Active power factor correction, high PF (PF> 0.95 at 230Vac), low THD (THD <15%), the efficiency can up to reach 91%.
  • Flicker-free coefficient<0.4%.
  • Meet the ERP standards after being installed inside finished LED lights.
  • Open circuit, short circuit and over temperature protections.
  • Surge level: 2KV.
  • Structure: IP20 (screw terminal version).
  • Warranty: 5 years
  • Applications: LED down lights, panel lights, grid lights, track lights and etc.
Technical data:
  • Input voltage:100-277V AC, 47 to 63Hz
  • Output specifications (a):
  • 1)25-40Vdc  600mA  24.00W
  • 2)25-40Vdc  650mA  26.00W
  • 3)25-40Vdc  700mA  28.00W
  • 4)25-40Vdc  750mA  30.00W 
  • 5)25-40Vdc  1100mA  44.00W
  • 6)25-42Vdc   1300mA  54.60W
  • 7)25-40Vdc   1500mA  60W
  • 8)25-40Vdc   2000mA  80.00W
  • Conversion efficiency: 90% at 220Vac
  • Power factor: 0.97 at 220Vac
  • Ripple voltage: ≤1V
  • Current tolerance: ±5%
  • Protective functions: open-circuit and short-circuit
  • Operating temperature: -30 to 50°C
  • Humidity: 20 to 90% RH
  • MTBF calculation: up to 50,000 hours lifespan
  • Certificate: CE, CB, TUV, RCM certified


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ShenZhen Fahold Electronic Limited , https://www.fahold.com