| It becomes more and more complicated to engage in grain depot management and administration along with the reform and development of enterprise system and mechanism. For instance, the single keeping grain has transformed to outside world business. Furthermore the storage kinds of grain are not only limited to unprocessed grain and semi-processed Meanwhile the ways of transaction are not only limited to interviews, telephone communication, but it is more to apply the Internet. Therefore how to effectively manage such five kinds of key resources that are human, financial and material resources as well as technology and machinery becomes an important problem.In this paper, based on the PowerBuilderr9.0 development tools and SQL Server 2000 database, a grain depot sales grain management system with nice human machine Interface has been well realized using object-oriented development methodology. Besides the realization method of system function modules is also introduced in detail. There are internal data sharing function module, data processing function modules as well as information resource management modules and so on in the system. The tests have shown that this system is practical to be widely applied. Furthermore it not only meets the needs of various grain storage departments, but also can manage enterprise information.In this paper the one-card system based on contact type IC card and RFID electronic tag has been successfully designed. The one-card sales grain management system based on contact type IC card has a lot of characteristics such as it has low cost, contact type, small storage capacity and low data transmission speed. Thus it is suitable for small and medium enterprises. Besides the RFID electronic tag has a great many advantages such as it is non-contact type, no wear, waterproof, anti-magnetic, resistant high temperature, long life, fast data transfer rate. Meanwhile its tag data can be encrypted and it has larger data storage capacity and is easy to changes store information as well as has high reliability. Therefore it is suitable to apply in the large enterprises. |