What are the functional benefits of smart hotels and which brand is good, especially the renovation of old hotels?

Smart hotels have risen in the past two years and become more and more popular. Baidu, Ali, Tencent and Xiaomi all participated. The importance of smart hotels is self-evident. The functions of smart hotels mainly include the following aspects: check-in procedures can be completed on mobile phones or self-service check-in machines without queuing. You can remotely adjust the room temperature before you arrive at the room, and you can experience the best temperature when you arrive at the room. Hotel room door locks should be equipped with functions such as mobile phone door opening, video door opening and fingerprint door opening. The most annoying thing about staying in a hotel is to close the curtains before going to bed. There should be voice-activated curtain switches, TVs, air conditioners, lights and so on. The smart hotel industry includes portable technology, Chem-Trend Intelligent, gooday and Zunbao, among which Chem-Trend Intelligent, gooday and Zunbao are three manufacturers. Personal opinion, for reference only, don't spray if you don't like it, I hope it will help you.