CAJ | 학술논문

为解决大吨位移动起重机上车用1939应用协议的总线瞬时负载率与总线平均负载率较高问题，减少信息传输的延期、通道拥堵的故障。与以往的BUS总线拓扑结构不同，本文将1939上与控制器单向传输大量信息的左、右手柄移出，并与控制器形成星型拓扑结构，从而将两种拓扑结构进行结合，取长补短，形成具有结构简单、易维修、易于扩充、增减用户方便、较高的可靠性等优点的新型CAN拓扑结构。同时降低了总线瞬时负载率与总线平均负载率。
위해결대둔위이동기중궤상차용1939응용협의적총선순시부재솔여총선평균부재솔교고문제，감소신식전수적연기、통도옹도적고장。여이왕적BUS총선탁복결구불동，본문장1939상여공제기단향전수대량신식적좌、우수병이출，병여공제기형성성형탁복결구，종이장량충탁복결구진행결합，취장보단，형성구유결구간단、역유수、역우확충、증감용호방편、교고적가고성등우점적신형CAN탁복결구。동시강저료총선순시부재솔여총선평균부재솔。
In order to solve the problem,the instaneous and the average bus load rate are higher,of the 1939 application layer deal on the moving crane. Decrease the relay of information conveying and bug of passageway crowd. Not to compete with the formerly bus topological structure, we removed the left and right joysticks, which transfer mass information to controller, from 1939. And they could constitute star-topological structure with controller. We combine the two topological structures to form the new topological structures. It has many advantages,for instance,pithy structure,easy to maintain, easy to extend and higher reliability. In the meantime, reduce the instaneous and the average bus load rate.