Recently, the "Blind Road" summer practice team of the Civil Aviation Flight Academy of Nanjing University of Aeronautics and Astronautics developed a roadblock detection scanner with an initial cost of only 30 yuan, which is cheap and easy to use.
For the blind, the blind cane is an extended hand. It not only has the function of exploring, but also indirectly reminds the people around it. The person holding the stick is blind to facilitate others to help. But the blind cane is not omnipotent, in some In narrow or messy spaces, the blind can also cause more or less inconvenience.
At present, there are already companies in the country that are doing radar for the visually impaired. This kind of equipment that ingests the surrounding scene through the camera and then carries out dangerous warnings through hardware devices, the price ranges from three to five thousand to seven or eight thousand.
Since 2013, the 'Blind Road Explorer' of the Civil Aviation Flight Academy of China Southern Airlines has been focusing on blind travel in Nanjing, Jiangsu for five years. This year, the team changed its name to 'Blind Roads' and continued to contribute to the visually impaired.
In order to help the blind to avoid obstacles, the 'blind blind road' summer practice team developed a roadblock detection scanner, the initial cost is only 30 yuan. The scanner looks like a small pineapple, only the size of the palm, two round exploration The avatar has a pair of cute big eyes. It can be used to send three warnings according to the distance of the obstacles ahead, reminding the blind people of the road ahead.
The obstacle detector is mainly composed of a single-chip microcomputer and an ultrasonic sensor module. The two 'eyes' on the 'small pineapple' are ultrasonic sensors, which judge the obstacles in front by the principle of ultrasonic ranging, and then alert the blind to the blind, 1 meter away from the obstacle. An alarm will be issued and an alarm will be reinforced at distances of 60 cm and 30 cm to remind the blind to avoid obstacles and prevent injuries.
Although the scanner has not yet been put into use, the 'blind blind road' still plans to continuously improve the device, improve its portability and reliability, and plan to make the device smaller, and the detection range is farther and more precise. Really put into use.
