Supermarket shopping, just push cart full of merchandise to the specified location, 3 seconds to scan, you can display all commodities amount, number and type; boneless chicken legs automatic machine; and hand push solar energy electric sweeper and so on. These are from college students to colleges and universities in Chongqing outstanding creative works, ideas are great, and some also applied for a patent. For these projects have the opportunity to find investment, the 25th in the afternoon, the Chongqing municipal corporation, Municipal Education Committee, and City Board of Education, City Associations, Municipal Federation at Southwest University, Chongqing held a university student extracurricular academic science and technology work contest outstanding works Exhibition and project promotion. 17 university students took to the stage, with a 1-3 minute period to promote their projects. His invention allows faster supermarket checkout Chen Nanan Chongqing Institute of Mechatronic Technology sophomore, his project work is "RFID inlay company second speed checkout system." "In fact, inspiration is usually work to the supermarket shopping, always for queuing trouble, so I wanted to do an invention to make checkout faster and easier." Chen Nanan said. His work is the use of signal processing circuit module, core control board, network communication, shopping channel control system combined to form a set of automatic checkout lanes, on all goods in the supermarket with RFID card perlam instead of a bar code, so shoppers only need to installed as shopping cart, pushed into the closing passage of goods 100 or less up to 3 seconds to complete the scan, and show the amount, number and variety, if coupled with the launch of a supermarket can recharge VIP card, sweeping away You can achieve automatic checkout. "With this billing system, can greatly save on labor costs, as far as I needed to calculate the supermarket salesperson will reduce from the current 24 to eight." Chen said he hopes to use RFID technology as a fulcrum to bring shopping checkout A new revolution in the way.