An elevator group control net based on CAN bus technology is constructed and its corresponding hardware is designed, considering the advantages and disadvantages of the CAN and RS485 bus.
在比较和分析了CAN总线与RS485总线的优缺点的基础上，提出用CAN总线构建电梯群控网络，并完成了基于CAN总线的电梯群控系统的硬件设计。
Young is a group whose self-protective consciousness and self-control ability are weak. Net addiction of young is affected by a special psychological characteristic.
青少年是一个自我防护意识和自我控制能力都相对薄弱的群体，青少年的网络成瘾行为是受其特有的心理特点影响的。
Results:Compared with the control group, the group treated with dura net plasty recovered better and less complications in CSF leakage encephalocele and subscalp effusion.
结果：硬脑膜网状成型组与放射状剪开硬脑膜组相比，脑脊液漏、脑膨出及皮瓣下积液发生率均有显著差异。
应用推荐