Research and Design for Safety and Guard System
based on CAN BUS
Abstract:Bass on the present situations of the intelligent building system development of our country——lack in integration and not used very widely. In order to construct low-priced, reliable intelligent network in the uptown, to meet the demands of safety, I have studied the field bus technology and one of its solutions——CAN BUS. Ground on the characteristics of CAN, I made a suggestion on correspondence precept of multiplayer network——“RS—232+CAN+RS—485”, that is composed of Main Controller (it has CAN BUS interfaces) and cell controller. The lower layer of RS—485 network is composed of many tenement signal collectors. The upper layer made use of RS—232 to connect CAN network and PC as management center in intelligent uptown. The network model can achieve these functions: uptown safety、field measurement and signal transmission. This dissertation has narrated the multiplayer model, and software design detailedly.
Key words:Intelligent uptown, Field bus, CAN technology, Safety system, MCU