COMMUNICATION STRUCTURE BETWEEN A CENTER AND LOCAL EQUIPMENTS IN AN ITS AND A METHOD, SPECIFICALLY IN CONNECTION WITH PERFORMING WIRELESS COMMUNICATION BETWEEN THE LOCAL EQUIPMENTS, AND PERFORMING COMMUNICATION WITH THE CENTER IN DEDICATED LINE THROUGH A LOCAL EQUIPMENT DESIGNATED AS A MASTER

摘要

PURPOSE: A communication structure between a center and local equipments in an ITS(Intelligent Transportation System) and a method are provided to wirelessly connect grouped local equipments while connecting a local equipment only designated as a master with a center through a dedicated line, thereby performing wireless communication between the local equipments while performing communication with the center through the master local equipment. CONSTITUTION: Local equipments(210,220,230,240,250) are divided into the master local equipment(210) directly connected to a center(100) through a dedicated line and the slave local equipments(220,230,240,250). The master local equipment(210) transceives various control signals and data with the center(100) through the dedicated line, and transceives various control signals and data with the lower slave local equipment(220) in wireless communication method. The slave local equipments(220,230,240,250) transceive various control signals and data with each upper/lower slave local equipment.