| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a vehicle multiplex transmission device which reduces the occupation rate of data and efficiently transmit data from more than one unit. SOLUTION: A body system unit 1a, a meter system unit 1b, and a display system unit 1c are connected to a bus 3, a data request part 24b in the meter system unit 1b issues a request signal requesting data to be shared by respective units to the body system unit 1a, and a transmission and reception part 21a in the body system unit 1a sends the data to be shared to the meter system unit 1b according to the request signal from the data request part 24b; and a data request detection part 28c detects the issue of a request signal and once the transmission and reception part 21b receives the data to be shared from the body system unit 1a, a transmission and reception part 21c in the said display system unit 1c receives the data to be shared.</p> |
