建立了6自由度6-3-3并联机构的运动学逆解模型，给出了该机构奇异性判别矩阵。

First, the inverse kinematics of six DOF(degree of freedom) 6-3-3 parallel mechanism were modeled mathematically and the discriminant matrix about singularity of the parallel mechanism was derived.

youdao

该方法通过构造系统的故障判别矩阵，并结合端口的状态，通过运算可以准确地判别系统的故障源。

The defect source of actual system can be accurately judged by constructing the system defect judgment matrix and combining with PLC port state.

youdao

针对不存在丢包和存在丢包的情况，通过由采样周期、被控对象与模型参数构造的稳定性判别矩阵给出了使网络控制系统渐近稳定的充分条件。

By constructing a test matrix in terms of the sampling period, the plant controlled and the model parameters, we give a sufficient condition to test the asymptotic stability for the system.

youdao