A wide range of inventions, including state-of-the-art industrial facilities and innovative products more closely tied to people's daily lives, could be found at this year's national invention exhibition held in Yongkang, Zhejiang province, from Oct 24 to 27.
The 2015 National Exhibition of Inventions, co-hosted by the China Association of Inventions and the local government, was held in the new Yongkang International Convention and Exhibition Center.
Covering an area of 7,800 square meters, the four-day event displayed more than 1,000 items from companies and individual participants from Hong Kong, Macao, Taiwan and the Chinese mainland, along with military units and industrial associations.
The exhibition also set up special areas for teenage inventors and young entrepreneurs to show their patents.
One of the biggest galas of its kind in China, the annual exhibition was first held in 1985 and has showcased more than 20,000 patented research results during its past 20 sessions.
From this year, the exhibition will settle in Yongkang permanently, which "will inject continuous impetus to promote Yongkang's economic transition", said Chen Meirong, executive vice-mayor of the city.
"The choice of Yongkang is because it has a thriving private economy and strong entrepreneurial atmosphere," said Lu Dahan, secretary-general of the China Association of Inventions.
"The city has a large number of small-and medium-sized companies that have a strong demand for technical innovation, and we hope the exhibition could help promote the local patent commercialization," Lu said.
Yongkang currently has five provincial-level enterprise research institutes and 50 high-tech companies. As of September, the city held more than 30,000 patents.
Traffic accidents have always been a topic of concern to China's public. Meng Keqi, deputy head of the No.31 Middle School of Nanning in the Guangxi Zhuang autonomous region showcased an intelligent alarm developed by a school student.
The device alerts both the vehicle driver and pedestrians, if the latter are in danger of being hit by the car when it is making a turn, Meng said.
The device is mainly designed for long and large vehicles such as buses and trucks, as they will have a larger blind area than small cars when turning, making accidents more likely, he said.
With a externally mounted camera and an internal monitor, the device also allows the driver to see obstacles.
At the exhibition, many visitors were also attracted by an eye care appliance, that resembled eye shades.
The number of nearsighted patients in China accounts for nearly 30 percent of the country's total population, and almost 75 percent of college students wear glasses, according to the Changsha bio-science company that developed and manufactured the appliance.
Equipped with a microcomputer, the product integrates massage, thermotherapy and magnetic therapy, which can help relax the eye muscles and prevent myopia, the company said.