| 摘要 |
<p>PURPOSE:To improve data transmission efficiency by generating a transmission right in a controller when the collision of transmission data is not detected and the continuation of data is instructed. CONSTITUTION:An electronic controller ECU 1 is connected via a network 6 for mutually monitoring operation parameters detected by a control parameter and a sensor 11, and mutually transmits and receives necessary data. A CPU 101 determines a control parameter based on the detected value of the sensor 11 and drives an actuator 12, in accordance with the programs stored in a ROM 103. At the time of the rise of a system, the main generation of a transmission right is detected, and when the transmission continuation of data is instructed, the first token is generated by a competitive system. When the transmission of data is started and the collision of data is not detected, the tokens are circulated and the transmission is continued. As a result, the tokens are quickly generated and all the nodes acquires transmission right equally. Thus, the system is made to function equally and data transmission efficiency can be improved.</p> |
