CAJ | 학술논문

为了保证星载控制器局域网（Controller Area Network,CAN）总线通信的可靠性,基于叠加定理对总线接口建立了等效电路模型,结合节点电压法,计算了接收器输入端差分信号的电压,运用仿真软件绘制出了终端匹配电阻RT=124Ω条件下,电压与传输线电阻RW之间的关系曲线,确定了RW的选取范围;当RW=23Ω时,对电压与RT之间的关系曲线进行了仿真,确定了RT的选取范围;通过计算得出了RW=0Ω、RT=124Ω条件下发送器所能驱动的最多接收器节点数。模型的建立与仿真为CAN总线通信电路设计提供了一种新的模拟和验证方法。
위료보증성재공제기국역망（Controller Area Network,CAN）총선통신적가고성,기우첩가정리대총선접구건립료등효전로모형,결합절점전압법,계산료접수기수입단차분신호적전압,운용방진연건회제출료종단필배전조RT=124Ω조건하,전압여전수선전조RW지간적관계곡선,학정료RW적선취범위;당RW=23Ω시,대전압여RT지간적관계곡선진행료방진,학정료RT적선취범위;통과계산득출료RW=0Ω、RT=124Ω조건하발송기소능구동적최다접수기절점수。모형적건립여방진위CAN총선통신전로설계제공료일충신적모의화험증방법。
In order to make the controller area network（CAN） bus communication reliable,the equivalent model is set for the bus interface based on the superposition theorem,and the electric potential of the differential input signal is calculated by using the Node Voltage method;When the terminal resistor R_T is 124Ω,with the help of software,the relation curves between the signal and the twisted transmission line resistance R_W are simulated,and the R_T range is drawn.When R_W is 23Ω,the relation curves between the differential input signal and the terminal resistor R_T are simulated,and the R_T range is drawn;When R_W is 0Ω and R_T is 124Ω,the number of the most receiving terminal is obtained.The establishment and simulation of the interface model provide a good method for the CAN bus design.