Data transmission for remote-controlled security system

摘要: A remote-controlled apparatus improves the reliability of a vehicle security system. Each time transmitting unit transmits data, first code updating section changes variable storage in memory by predetermined shift processing to form new code, and replaces preceding with code. An ID setting sets an formed fixed Predetermined data including command signals is transmitted. When receiving receives received are compared stored unit. If it thereby determined that codes portions coincide each other, operation started or stopped according content (command signals)