A control method of an in-vehicle apparatus including a processor and a memory storing a check direction table in which an unparking direction of an own vehicle, a traveling direction of a roadway, a check direction, and a detection range are registered in association with each other, the method comprising:
- an unparking direction of the own vehicle determination step of determining the unparking direction of the own vehicle in which the in-vehicle apparatus is loaded;
- a position information acquisition step of receiving positioning signals transmitted from a GPS satellite, and calculating a latitude and a longitude of the own vehicle as positional information based on the received positioning signals;
- an acquisition step of acquiring parking-lot map information including information of the traveling direction of the roadway within a parking lot based on the positional information wherein the traveling direction of the roadway is orthogonal to the unparking direction of the own vehicle, and the traveling direction of the roadway is one way from a left of the unparking direction of the own vehicle, one way from a right of the unparking direction of the own vehicle, or two-way pass;
- a roadway specification step of specifying the roadway adjacent to a stall where the own vehicle is parked based on the parking-lot map information acquired by the acquisition step, the positional information, and the unparking direction of the own vehicle;
- a check direction determination step of determining a check direction of the one way from the left or the right of the unparking direction of the own vehicle or the two-way pass for which a driver of the own vehicle needs to do a checking action for checking safety before the own vehicle enters the roadway by referring to the check direction table;
- a direction information acquisition step of acquiring direction information showing at least one of a line of sight or a facing direction of a face of the driver driving the own vehicle;
- a check occurrence determination step of setting the detection range in the check direction by referring to the check direction table based on the check direction determined by the check direction determination step, and determining whether or not at least one of the line of sight or the facing direction of the face of the driver acquired by the direction information acquisition step is within the detection range so as to determine occurrence of the checking action;
- a notification step of controlling a display, a speaker, or a vibrator disposed in the own vehicle to execute a notification action when determined by the check occurrence determination step that the checking action by the driver has not occurred;
- records associating the check direction determined by the check direction determination step, the direction information acquired by the direction information acquisition step, and occurrence information showing whether or not the notification action has occurred are stored in a memory;
- a registration and update step of registering, in the memory, contents of the notification action when the notification action occurred, and updating accumulated value corresponding to number of records in which the direction information and check direction are the same;
- a tendency detection step of detecting a direction in which the driver tends to neglect checking safety when the accumulated value reaches a set value or more;
- and
- when the accumulated value is equal to or more than a set number, an action to notify the driver the direction in which the driver tends to neglect checking safety and a direction for which the driver has neglected checking safety is executed, based on the direction in which the driver tends to neglect checking safety, wherein the direction in which the driver tends to neglect checking safety is left of the unparking direction of the own vehicle, right of the unparking direction of the own vehicle, or left and right of the unparking direction of the own vehicle.