电子存包柜- 英文.doc

Design of electronic storage cabinet based on RTOS Small Department of electronics and communication engineering, PSG college, Coimbatore India Abstract：This paper introduces the design principle of the electronic storage control system based on RTOS Small, and introduces the system used in this system to make the controller, which can manage the N storage cabinet at the same time. The door lock is controlled by the electromagnetic valve, when customers need to save the package, can go to the lockers before press the open button, the microcontroller receives a pulse signal, and the system I/O port to send corresponding signals to control the electromagnetic valve lock door will be an empty box is opened, the customer can save the package and the door shut. When the customer needs to take the package, will as long as the bar code placed in front of the bar code reader, barcode reader bar code information collected by the output voltage signal corresponding to the microcontroller, the password system is relatively consistent, send out signals to the solenoid valve is open, the customer can remove the package. Key words：Small RTOS；electronic storage cabinet; save package 1、Introduction RTOS RAM Small demand for small, very suitable for such a relatively small resources of the system. RTOS has a multi tasking, strong real-time, and can be reduced to the kernel, making the design of real-time applications, expansion and maintenance easier. The introduction of the idea of RTOS, instead of the traditional software design method, so that it is no longer a single thread structure, through the application is divided into several independent tasks, RTOS makes the design process of application system is simplified. In this paper, the software design of electronic storage cabinet based on single chip microcomputer is combined, the design idea of RTOS Small and the application of message queue communication mechanism are briefly analyzed. 1.1 basic principles of RTOS51 Small RTO