Design of hardware system of mobile security terminal based on GPS and GSM
Zhijie Zhang · jOURNAL OF southwest University for Nationalities · 2008
According to the functional requirement about mobile security terminal of employee security information system,the GSM module and GPS module are designed,which are hardware component for message interactive between the information center and the terminal.The dual processor management pattern as the systems control core is adopted,and thus the sturdy real-time function is realized;In the dual processor system,by using dual-port memory,the tightbond multi-processor system structure is constructed,which enhances communication between double processors.Petri net model is adopted to ensure the reliability of communication.