VEHICLE STATE NOTIFYING SYSTEM, ITS CONSTITUENT DEVICE, AND NOTIFYING METHOD

摘要

A vehicle state notifying system for notifying the user of the vehicle state through a simple constitution at a low cost. The system is composed of a child device (300) which the user carries and a parent device (200) radio-communicatable with the child device (300) bidirectionally. On receiving send request data from the child device (300), the parent device (200) creates notification data representing the state of an automobile (100) from the results of detection of the state of the automobile (100) by sensors and transmits the notification data to the child device (300) through weak radio. The parent device (200) synchronizes the transmission timing of the notification data with the reception interval of the child device (300).