The new WiFi technology HaLow is better at "going through the wall", but not suitable for surfing the Internet.

The new WiFi technology HaLow is better at "going through the wall", but not suitable for surfing the Internet.

The concept of Iot has been blowing for a while, but it is still far from reality. One of the obstacles is the unstable connection, low efficiency, and time-based Wi-Fi, but it is also the source of life. However, according to wired reports, the Wi-Fi Alliance wants to solve this problem.

 

The Wi-Fi Alliance is the maker of Wi-Fi standards. It recently announced the latest technology standard HaLow, claiming that the transmission distance is twice that of the standard 2.4 GHz Wi-Fi, and the wall-crossing capability is stronger. If the alliance says nothing, this technology is suitable for smart home and IOT products.

HaLow has these advantages because it runs in the MHz band, not the popular GHz and 5 GHz frequencies, which are more suitable for small data loads and low power devices, it is especially suitable for smart watches and smart home devices.

You may think that the Bluetooth protocol is sufficient now. What is the significance of the new standard? Most importantly, many devices need to connect directly to the Internet in the future, rather than interacting with other devices only. This is especially important for smart watches that want to be independent from mobile phones. HaLow integrates the advantages of previous WiFi technology and Bluetooth.

In addition, HaLow can be used in industrial and municipal applications because each Wireless Access Point can support thousands of devices, which is particularly useful for scenarios that require a large number of monitoring devices.

The disadvantage of the HaLow standard is that it is not suitable for fast data transmission and web browsing (but it is not a disadvantage because it is mainly intended for Iot devices). It is also necessary for high-frequency micro-data transmission. HaLow will also run in unauthorized frequencies, so there will be some interference.

It is a pity that we will wait a few more years to use HaLow, because the Wi-Fi Alliance will not authorize the HaLow product in 2018, that is, it will be used for routing or wearable devices, other devices must upgrade the Wi-Fi chip to be compatible. In addition, over the past few years, technologies such as Bluetooth, ZigBee, and Z-Wave are also developing, and whether HaLow is needed is also a problem. The standard depends on the number of users.