| 摘要 |
An in-vehicle device has a calculator which obtains subject vehicle information, detects a vehicle in a preset range based on a detection signal from a laser radar for obtaining a vehicle detection result, obtains a curvature of a road, and determines whether the curvature of the road is equal to or smaller than a threshold. If the radius is less than the threshold, a packet having data regarding the subject vehicle information, range position information, and vehicle presence information is generated. If the radius exceeds the threshold, a packet having data regarding the subject vehicle information is generated. The generated packet is then transmitted to an outside of a subject vehicle. |
| 主权项 |
1. An information transmitter installed in a subject vehicle, the information transmitter comprising:
a data transmission section wirelessly transmitting data directly or indirectly to an information receiver of another vehicle; a vehicle position detector detecting a position of the subject vehicle by obtaining position determining information; a vehicle detector detecting a vehicle within a preset range that is positioned in front of the subject vehicle; a curvature obtainer obtaining a curvature of a road located in front of the subject vehicle; and a transmission controller controlling the data transmission section to transmit (i) range position information regarding a position of the preset range and (ii) vehicle presence information regarding whether the vehicle detector has detected any vehicle within the preset range, wherein when the curvature of the road obtained by the curvature obtainer is equal to or smaller than a threshold, the transmission controller controls the data transmission section to transmit the range position information and the vehicle presence information, and when the curvature of the road obtained by the curvature obtainer is greater than the threshold, the transmission controller controls the data transmission section to not transmit at least one of the range position information or the vehicle presence information. |
