Chao-Chao Guo & Jun Xu, China
The deaf mute vibration helmet is a decibel recognition sensing helmet. It uses a combination of a traditional helmet and a sound decibel sensor to assist the deaf mute to ride through the “sound vibration reminding method”. Set a sound leveler at the rear, when the decibel in the rear exceeds the set value (>80dB), the decibel sensor commands the vibration device to remind the user that there is a car behind, so as to avoid, which greatly reduces the experience of deaf and dumb people riding. Road traffic safety accidents. Decibel range of car whistle: 80dB-110dB, The decibel range of urban noise: 40dB-65dB.