In 1994, smart home began to exist in China. At that time, there was no complete industry in China. It was basically imported from abroad and sold to foreigners living in China. The concept of smart home and smart building abroad was very early. In 1984, a special smart building was built. The first family to use smart home was the world famous villa of Bill Gates, the world's richest man, These are all popular knowledge that many people know. Although it seems that domestic smart homes are more backward than foreign ones, intelligent buildings in the early years were all realized by wired, which cost a lot and can hardly be used by ordinary people. In fact, technological progress in recent years, especially progress in various wireless signal fields, including but not limited to wifi, Bluetooth, zigbee, zwave, and power carrier, Smart home has gradually expanded to the wireless field, so various smart products have sprung up in recent years. Because the cost has been greatly reduced, the technology in the wireless field at home and abroad is basically running at the same time, just a little less experienced. At present, ZigBee and z-wave, the leading standard protocols for wireless signals in foreign countries, have many enterprises in their own groups at home and abroad, without special disadvantages or advantages.
It is true to insist that the development time is short, but it is not so obvious.