| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To properly perform communication between vehicles for preventing collision by suppressing the interference of communication. <P>SOLUTION: This radio communication equipment 1 broadcasts a communication packet in which the position coordinates and speed vectors of its own vehicle detected by a state detector 57 are described through a transmission part 21 to the outside in a preliminarily set transmission power and transmission cycle, and in detail, sets the transmission power and transmission cycle of the communication packet based on the communication packet received from the radio communication equipment of the other vehicle through a reception part 25, and sets the vehicle having the maximum absolute value of relative speed vectors among the vehicles around its own vehicle as a hazardous vehicle based on the speed vectors of the transmitting vehicle shown by the received communication packet, and switches the transmission power so as to become larger as the relative distance becomes long based on the relative distance and relative speed vector absolute value of the hazardous vehicle on the basis of its own vehicle, and switches the transmission cycle so as to become shorter as the relative speed vector absolute value becomes large. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
