| 摘要 |
PROBLEM TO BE SOLVED: To secure a communication route with a low error rate and to enhance reliability by detecting the error rate so as to know a communication situation when feeble radio data communication with less power is started. SOLUTION: In this radio communication system, plural slave stations where a bit error rate detecting circuit E is provided in a signal path after reception electric wave is demodulated are included, bit error rate code data transmitted from a master station is judged by the bit error rate detecting circuits E provided in the slave stations when communication is started, the error rate is returned to the master station and the master station which receives it judges whether data being more normal than the information is transmitted or not. When the answer no, the communication route is automatically secured so as to permit communication to be executed with the relaying slave station. |
