Recently, the University of California, Los Angeles designed a special glove, a sign language translator, which can translate gestures into speech in real time, giving the aphasia an additional way to express themselves. The device weighs about half an egg, and the cost is only about RMB 350. Its material is stable and durable. After many tests, the system’s sign language conversion voice accuracy rate is as high as 98.63%, which has a good application prospect.
The focus of the sign language interpreter lies in the linear sensor, which is composed of five stretchable wires, which can fit the five fingers well and measure various gestures. These sensors are strong and durable. Whether they are stretched 4 times per second, or 6000 times, or immersed in sweat, they can send out a stable signal. According to the stretching degree of each wire, the sensor will input different electrical signals. For example, when a 3 cm wire is fully stretched to 6 cm, a voltage of about 2 volts can be generated. Subsequently, these signals are modulated and processed by the printed circuit board at the wrist, and transmitted to the mobile phone via Bluetooth. At this time, the mobile client can convert the signal into voice and play it. Currently, researchers have tested 11 gestures, and the system has established a set of algorithms through 40 demonstrations of each gesture.
Through continuous development and improvement, sign language translators are expected to break the final barrier to barrier-free communication for the aphasia, and will bring great gospel to the aphasia.