CORDLESS BROADCASTING SYSTEM FOR INFORMING DANGER ZONE OF ROAD

摘要

PURPOSE: A cordless information broadcasting system is provided to prevent an accident by receiving information broadcasting according to a danger condition of a road. CONSTITUTION: A main equipment of the system can be operated utilizing a charge battery built in a body. The built-in charge battery is fully charged to a power voltage in the daytime by a solar battery with a reference current and a current restriction circuit so that the main equipment can be operated. The danger condition of a road is previously stored in a voice recording circuit as voice recording information message. If current variation caused by a light detection source is amplified at night to trigger a flipflop circuit and a start signal is periodically inputted to a 41th pin of a start input terminal of the vice recording circuit, the voice recording circuit is modulated and amplified and is transmitted to an antenna. The main equipment repeatedly plays information message, so that the information broadcasting is performed.