Driver posture detection apparatus and method thereof

A driver posture detection apparatus comprising:

• at least one wireless receiver that is attached to a saddle-type vehicle;
• at least two wireless transmitters that are attached to wear of a driver of the saddle-type vehicle and each include a plurality of antennas;
• a direction calculation section that calculates, based on phase information on radio waves from the wireless transmitter that are received by the wireless receiver, a direction of the wireless transmitter with respect to the wireless receiver;
• a position calculation section that calculates, based on direction data calculated by the direction calculation section, a position of the wireless transmitter with respect to the wireless receiver;
• and
• a posture calculation section that calculates, based on position data calculated by the position calculation section, a posture of the driver with respect to the saddle-type vehicle.

A driver posture detection method that detects a posture of a driver who gets on a saddle-type vehicle, the driver posture detection method comprising:

• a transmission step of transmitting unmodulated radio waves during a fixed period from a wireless transmitter that is attached to wear of the driver;
• a reception step of receiving the unmodulated radio waves in at least two wireless receivers that are attached to the saddle-type vehicle and each include a plurality of antennas;
• a direction calculation step of calculating, based on phase information on the radio waves received by the wireless receiver from the wireless transmitter, a direction of the wireless transmitter with respect to the wireless receiver;
• a position calculation step of calculating, based on direction data calculated at the direction calculation step, a position of the wireless transmitter with respect to the wireless receiver;
• and
• a posture calculation step of calculating, based on position data calculated at the position calculation step, a posture of the driver with respect to the saddle-type vehicle.

A driver posture detection method that detects a posture of a driver who gets on a saddle-type vehicle, the driver posture detection method comprising:

• a transmission step of transmitting unmodulated radio waves during a fixed period from at least two wireless transmitters that are attached to wear of the driver and each include a plurality of antennas;
• a reception step of receiving the unmodulated radio waves in a wireless receiver that is attached to the saddle-type vehicle;
• a direction calculation step of calculating, based on phase information on the radio waves received by the wireless receiver from the wireless transmitter, a direction of the wireless transmitter with respect to the wireless receiver;
• a position calculation step of calculating, based on direction data calculated at the direction calculation step, a position of the wireless transmitter with respect to the wireless receiver;
• and
• a posture calculation step of calculating, based on position data calculated at the position calculation step, a posture of the driver with respect to the saddle-type vehicle.