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According to the US technology website TheVerge, WiFi seems to have connected most of the devices in consumers' homes, so why not connect smart appliances through it?
Although this idea seems to be taken for granted, in fact, most networked device manufacturers have been reluctant to use WiFi. This is mainly because WiFi consumes too much power, so for many inexpensive micro devices, this is a huge amount. The problem. It usually takes several months or even several years for these micro devices to charge one time.
The WiFi Alliance intends to change this situation. It today announced a new WiFi technology that can be used on low-power devices. Allegedly, this new WiFi technology allows WiFi signals to travel farther and has better wall-penetration than previous WiFi technologies. If the WiFi Alliance makes no mistake, then this new technology is clearly more suitable for smart homes and IoT devices.
This new WiFi technology will be called WiFi HaLow, which will be an extension of the upcoming 802.11ah standard. The WiFi Consortium intends to begin verifying HaLow products sometime in 2018, but the first HaLow products may be available sooner.
This new WiFi technology can compensate for the shortcomings of previous WiFi technology when compared to Bluetooth, which can be applied to fitness trackers, home sensors, security cameras or other home devices. Nowadays, many devices such as cameras already support WiFi technology, but there are few applications for wearable devices and sensors. HaLow will be a better solution than Bluetooth.
The WiFi Alliance did not mention Bluetooth technology, but it implies that HaLow's performance will be stronger than Bluetooth's. Kevin Robinson, vice president of marketing for the Federation, said: "HaLow will be able to compare with existing technologies in terms of battery life and other performance."
If HaLow technology can really behave like the WiFi federation says, it will be very significant. It can not only completely replace Bluetooth, but also the signal transmission distance, but also directly connected to the router, that is to say directly connected to the Internet.
Existing mobile phones and routers must upgrade WiFi chips to be compatible with HaLow products, but this is only a matter of time, just as 5GHz WiFi was officially released.
HaLow has these advantages because it is operating in a better frequency band. The frequency band that it operates is 900MHz frequency band, and the frequency band that the existing WiFi technology runs is 2.4GHz and 5GHz frequency band, the signal transmission distance of 900MHz frequency band is farther, the penetration is stronger.
It should be pointed out that, like existing WiFi technology, HaLow technology will operate on unlicensed frequency bands, so there may be some interference.
Of course, HaLow technology also has its own shortcomings, which is that it is not suitable for fast data transfer. It is not suitable for browsing web pages, but is more suitable for use in high frequency micro data transmission. Equipment manufacturers can customize HaLow according to their needs in order to increase transmission speed, but battery life may be affected by this.
HaLow may not appear in the smart home until two years later, but smart homes and the Internet of Things are just getting started, so HaLow's timing may not be too late. Robinson said: "The Federation believes that HaLow will play a huge role in the Internet of Things." But he also admitted that WiFi may not be the only standard. No one thinks that the Internet of Things will be integrated through a single networking technology. Together.
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