DATA TRANSMISSION SYSTEM USING RADIO WAVE

摘要

PURPOSE:To perform the transmission and reception of information by radio to a mobile station without generating the collision of information on the wired line between a master station and plural base stations and the mixing of the response at a master station. CONSTITUTION:A master station 1 transmits the data for a mobile station 33 on to a bus B. Each base station 21 to 2n performs a radio transmission of the data by the same channel at the same time. The mobile station 33 performs the radio transmission of a response according to a data reception. The base stations 21 to 23 receiving the response set delay time according to each reception intensity, transmits the response from the mobile station 33 received (by the base station where delay time is the shortest) to the master station 1 when the bus is in a non-occupancy state within delay time, and cancels the response and the discontinues the transmission to the master station when the bus becomes an occupancy state while the time passes.