Wi-Fi almost captured the world, why slow to take the smart home? Nanjing IoT sensor merchants join headquarters

Whether you admit it or not, as long as you surf the Internet, you may have to rely on WiFi. Yes, the WiFi has almost captured the whole world before you knew it.

In terms of space, WiFi is like an invisible net, scattered in people's dense place. At home, on the road (transportation), in office buildings, restaurants, playgrounds, cafes, libraries and so on, WiFi is the most extensive non-signaling signal; equipment, ABI research found that by the end of 2014, A total of 9.98 billion WiFi devices are sold worldwide, and about 4.5 billion WiFi products are currently in use. At the same time, Wi-Fi devices are expected to continue to grow at a 10% annual rate over the next five years.

But it is so people rely on and rapid development of a technology, simply did not in the current fire of the smart home to obtain an absolute advantage, in many smart home wireless technology, WiFi is not the protagonist. In fact, of the more than 2.3 billion WiFi devices sold in 2014, mobile phones, tablets and e-readers accounted for nearly 70% of total shipments, and smart homes, industrial IoT, and cars were all part of the "rest".

Why? Why is it that a lot of people use WiFi in the smart home field is very low in the sense of existence?

Cannot hit it off the technical "mishap". WiFi as a connection to the Internet is not too much of a problem, but for smart home at least three points of inadequacy.

--1, the security of the faint uneasiness. Here, do not directly say, WiFi security encryption technology How vulnerable, also no longer to raise the home of foreign smart home equipment is "devastated" example, just want to let everyone think, without knowing the family WiFi traffic for no reason by strangers use, can understand WiFi is not a difficult thing to crack. And if the smart home is attacked, it may not be less traffic so simple thing.

--2, Fuzzy health. Wireless technology will have a certain amount of radiation, but compared to other technologies, WiFi is often the most dangerous health suspects, even if we often use and most of the time without discomfort. So does it hurt? The World Health Organization has pointed out that there is no evidence of a negative impact on cell phone radiation, generally speaking, 20 minutes of phone calls, the body absorbs more radiation than the use of a year wireless router.

But there are also insiders pointed out that if the use of WiFi is not correct, it will cause damage to the human body. The amount of radiation received by the human body is related to frequency and distance, the higher the frequency, the greater the damage, the greater the distance, the less harm. Therefore, if the use of high-power WiFi devices, closer to the device, the self-immunity stage low, due to WiFi, dizziness, insomnia and other physical discomfort is possible.

--3, "unbearable Light of Life". Typically, a smart home is a system that involves a variety of devices, while a WiFi network carries a limited number of devices. Related reports show that "Wi-Fi network capacity is relatively low, the actual size of WiFi networks generally no more than 16 devices, and the actual home environment, only switch, lighting, home appliances, the number is far more than 16." This obviously does not fit with the smart home development.

The promotion of public cognition. WiFi has a natural networking advantage and does not require intermediate equipment, but for the general public, this does not seem to be most special.

--For this year, it should be a great opportunity for WiFi, and many Chinese companies have a lot of power. In mid-January, launched a general intelligent module for home appliance equipment at the flagship new product launch, with a price of 22 yuan; March from 11 to 14th, AWE2015 (2015 China Home Appliance Expo), WiFi module becomes a bright spot of smart home experience area; 

--supposedly, this very strong "wind of the module" should be able to help the WiFi win smart home, but "but the egg." Although the voice of the manufacturers is very loud, stirring the market is very lively, but smart home awareness has been a great upgrade of consumers only weak weak words can let this wind quiet: can be connected via wifi is smart home? What a simple question, for WiFi, but how painful the understanding Ah!

Brutal external competition. In addition to WiFi, there are many other wireless technology to the smart home market, which is the WiFi is difficult to lead the third reason. In many smart home wireless technologies, Bluetooth, ZigBee, and thread are undoubtedly the biggest threats.

-Bluetooth and WiFi are similar, and for the smart home has made a lot of changes. In December 2014, the Bluetooth Technology Alliance (bluetooth® SIG) officially announced the launch of the Bluetooth core specification version 4.2, with faster data transfer speeds, stronger privacy protections, and support for the Ipv6/6lowpan network, making the new version "the Best Bluetooth technology ever". Errett Kroeter, senior director of the brand and developer market at the Bluetooth Technology Alliance, said at a media presentation that Bluetooth 4.2 was launched to make Bluetooth smart the best solution for connecting everything from personal sensors to smart homes.

--zigbee is "Better than you, and more than you try" typical. In smart home applications, ZigBee more advantages than WiFi: the use of 2.4G direct sequence spread spectrum, FM technology, more than the general FSK, ask and hop frequency radio more anti-jamming; provides level three security, including no security settings, use of access control lists to prevent illegal access to data, and advanced encryption standards ( AES 128) Symmetrical password, security more secure, in low power standby mode, 2 section 5th dry battery can support 1 nodes work 6-24 months, or even longer.

In the alliance strength expansion, more resolute than WiFi, internal improvement technology, external expansion of the member team: in December 2014, ZigBee Alliance announced that its market-leading wireless standards for ZigBee 3.0, and strive to achieve internal technology unification; this March, Formally announced that China's IoT leader has joined the board of Directors of the Alliance, became the 12th member of the Global Board of Directors and the only board member in Asia, and recently incorporated Samsung's brand SmartThings into the 13th board member of the world.

--thread as a rising star, the same can make WiFi tension up. Although thread appears late, but is a noble, July 2014 by Google's home thermostat manufacturer Nest, then Youboy, Samsung, ARM, Core, Freescale, Qualcomm and other world-famous enterprises to join in succession. Currently, the Thread group is already growing. The number of members, initially only 7, is now more than 160; On the quality of its members, Freescale and Core are both members of the ZigBee Alliance Board of Directors, and Qualcomm, the new thread Group board, is an important founding member of the AllSeen Alliance Alliance.

Of course, even if there is such a problem, even if it is difficult to lead in the smart home field, WiFi is still an important communication technology in the smart home area, so with continuous improvement and improvement is not a chance.

At a symposium on WiFi Alliance in Beijing this January, Ms. Kelly Davis-felner, vice president of Wi-Fi Alliance marketing, released a new year of 15 forecasts on behalf of WiFi Alliance, thinking that the performance of WiFi technology would be further improved, Ensure interoperability and security while improving energy efficiency, coverage and performance, and leading the smart home, industrial IoT, and telematics.

"Connect with everyone, anytime, anywhere" is the development vision of WiFi Alliance. Just, now look, a heavy task.

Headquarters experience marketing Business promotion address: Jiangning Address: Nanjing Jiangning District Mo Zhou East Road 12th Zijin (jiangning) Technology Entrepreneurship Special Community third floor (warmly welcome to Nanjing IoT headquarters to discuss business/join, business cooperation)

Nanjing IoT Sensor Investment Headquarters hotline: 189 3601 0121 Contact: Zhang Jincheng (Offline channel director)

IoT Smart Home Exchange qq:223 221 4905 IoT Smart Home Exchange QQ Group : 383 315 850

Wi-Fi almost captured the world, why slow to take the smart home? Nanjing IoT sensor merchants join headquarters