| 摘要 |
PROBLEM TO BE SOLVED: To transmit information from a hand set anytime without waiting for the polling of a base unit by transmitting information from each hand set to the base unit at arbitrary time. SOLUTION: This system is composed of objects to output information, slave sets 2 connected to them, and base unit for controlling the slave sets 2. By dispatching information from the object having the information to the slave set 2, even without waiting the conventional polling from the base unit, the slave set 2 immediately transmits the information to the base unit while using ch1. When information is outputted from the object connected to a slave set 2 simultaneously with the transmitting processing of the slave set 2, the slave set 3 transmits the information to the base unit while using ch2. The base unit simultaneously receives the information from the slave sets 2 and 3 but since a code is divided within the same frequency because of a communication method using code division multiple access(CDMA), information is not interfered but every information can be received. |
