遥操作系统的数据传输和无源性保证  

Transmission and passivity of network for networked control

作　　者：谭功全[1] 蓝集明[2] 范涛[1] 

机构地区：[1]四川理工学院自动化与电子信息学院,四川自贡643000 [2]四川理工学院计算机学院,四川自贡643000

出　　处：《自动化与仪器仪表》2011年第5期148-150,153,共4页Automation & Instrumentation

基　　金：四川理工学院校级科研基金(2011xx012)

摘　　要：数据交换网络使得建立低成本、大范围、分布式控制系统变得可行。同时,有限带宽共享通信网络也带来拥塞、时间延迟和丢包等方面不确定性问题。针对遥操作系统的网络数据传输,通过主动丢包进行网络拥塞控制,使用接收缓冲器避免延时抖动以后,利用指数衰减律替代丢包信号,通过网络耗散能量限制其有界能量,以保证网络传输的无源性且有好的能量平衡性。仿真验证了这种数据传输和处理方法的有效性。A cheaply, widely distributed control system can be constructed based-on shared packet-switched network which has limited band-width. Meanwhile, it introduces some uncertainty problems such as network congestion, time delay, packet dropout and etc. For data transmission in teleoperating system, using active packet dropout strategy for network congestion control, and setting received data buffer to eliminate the communication delay jitter, the dropout packet signal can be processed and be replaced by an exponential decay signal which energy is limited within network dissipation energy. Thus, passivity and good energy balance of communication network is guaranteed, and this anoroaeh is validated by simulation results.

关 键 词：遥操作系统 数据传输 无源性 拥塞 时延 丢包 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]