Abstract.Routes Conflict detection is of great importance to air traffic control. Due to previous route conflict detection algorithm has a large number of computations, high time complexity and low reliability. This paper proposes a fast route conflict detection method based on the space box. Firstly, the space to be detected is divided into several space boxes, and the space box numbers of the track in the airspace are calculated according to the track coordinates. Secondly, in the case that multiple batches of tracks exist in the same space box, the location of the tracks is predicted according to … Read more →

Abstract.The unattended convenience store system for customers to pay and pick up goods by self-service has disclosed a project to add e-commerce concept to the retail industry. The rise of the Internet has made e-commerce develop rapidly, and the development of network payment and cloud service has escorted e-commerce.But so far, e-commerce is difficult to be applied in the retail field because of people's shopping habits.This project comprehensively considers various factors, uses mechanical and electrical equipment automation, comprehensive deployment of cloud server, and key generation and … Read more →