Several local university students have scooped top prizes in a recent start-up competition in the theme of Internet plus.
The event attracted more than 15,000 students from over 70 local colleges, more than double than last year's participants.
Twenty-four programs entered the Shanghai final, which saw eight triumphant programs emerge from the testing group. They now go on to represent Shanghai against other students from all over the country in the national final next month.
Judges acknowledged they were impressed by the standard of the competitors and their innovation programs, which covered various categories, such as modern agriculture, information technology and manufacturing. All university students revealed a sense of social responsibility to make life better for people.
"The students were very creative," said Zhang Rui, CEO of Universal Education Group, and one of the judges of the competition. "Some programs are closely related to our daily life, such as the training service for square dance, the non-invasive glucose meter, as well as some combining traditional industries with latest technologies, including cloud computing, big data and the Internet of things."
One of the top award winning programs was the brainwork of a postgraduate group at Donghua University who developed a fire extinguisher using sound waves, instead of dry powder, foam or water.
Users only have to aim at the fire, press on the button and the device would release a beam of agminated sound wave to put out the fire in seconds.
The fire extinguisher costs around 400 yuan (), a little bit more expensive than a traditional one, but it is safer and cleaner, the students claim.
"It's powered by electricity and would not cause pollution or damage to the environment as a traditional fire extinguisher would do," said Lu Hao, the main inventor of the sonic fire extinguisher. "Furthermore, the sound frequency is between 55 and 65 hertz, so it is harmless to human beings."
Lu says their product is especially suitable for extinguishing fires in enclosed small spaces or where valuable items are kept. It can also be used for promoting fire-extinguishing education.
The team has applied for patents for their inventions and they have won several awards in other competitions.
Lu revealed they are now continuing research on the product to make it more powerful.
Zhu Wenbin, a graduate from Donghua University, presented his towels that could tell people whether they were clean or dirty by the changing colors of the patterns on them.
Zhu made it known that he developed some smart-echo technology to use alga extract on textiles, such as towels.