For the function of the fan control, no more than the function of the fan switch, shake head function, wind speed adjustment, automatic shutdown time setting, plus several most commonly used mode which is very simple to realize. The offline speech commands is completely can be solved, no need to use online semantic recognition to control.
I’ve seen a fun which controlled by online speech recognition scheme, which is also controlled by a smart speaker, the promotional video of it featured with below dialogue:
User: “xxx it’s too hot today, would you please open the fan for me?” Intelligent speaker: “Ok, my dear lord. Xxx just open the fan for your now, I hope my service can make you happy.”
After watched this video I felt it’s really ridiculous and funny. All this process can be solved by a single sentence “Open the fan”, then who will like above such a complicate "intelligent conversation"? Especially for the users who use it time by time every day. Do you have patience to hear these kinds of respond sentence day by day?
In the other hands, we need buy an extra intelligent speaker to realize online transfer control and a certain environment with stable Wi-Fi signal covered. The cost is really considerable.
To compare with, the offline speech recognition control scheme provide by Shenzhen Qlife technology is applied to the fan, which has a very good user experience and is highly cost-effective.
The offline speech recognition control scheme presented by Qlife can be embedded directly in the fan, which means it can be added to the main PCB, through the serial transaction protocol connect main control chip. When the microphone picked up the voice commands, the active voice recognition module was immediately issued according to the picked voice information, and the control instructions were immediately issued, and the master control chip immediately executed the control instructions, the whole process was completed only a few milliseconds after your commands. In the sense of human beings, the control of the action was completed right after your commands. This response speed will make it "very fast" for users to felt "very smart".
It's worth noting that the offline speech recognition control fan doesn't have to rely on Wi-Fi at all, and can be used wherever there's power supply. Because it is speech direct control, do not need to through the intelligent speaker to control, so you can save the cost of buying intelligent speakers, the comprehensive cost for it is much less than online speech control fan.
Nowadays people pay more and more attention to the security of personal privacy. The offline speech recognition control fan scheme do not need to rely on the network, so do not need APP, do not need a password, do not need to worry about hackers or network platform secretly recording or listening. So the offline speech scheme is more secure.
The fan is a kind of summer high frequency used equipment, and the remote control type of household electrical products. In recent years, products keep upgrading, more and more common use of DC motor to drive, silent, safe, intelligent, has become a common feature of the new generation of fans. More than 100 million sets of fans are produced and sold in China every year, making China the world's largest producer and consumer.
The application of off-line speech recognition control scheme in electric fans is becoming an inevitable trend