Aiming at the problems of irrational allocation resources, low efficiency caused by unbalanced production line layout, and slow upgrade smart factory, this paper builds a real physical factory platform through optimal control strategy uses GRAFCET algorithm to optimize logistics scheduling during actual system operation. The genetic is used layout effect line; digital twin technology provide pr...

PID control algorithm is widely used in servo control system. Because of the non-symmetrical structure of the hydraulic cylinders in the angle position electric-hydraulic servo system of plant converter, the conventional PID control has low control precision and bad flexibility. To solve the problem, an improved digital PID control algorithm with variable sampling periods is proposed. Based on ...

In recent years it has been trying that with regard to the question of computational complexity of discrete logarithm more strength and less in the elliptic curve than other hard issues, applications such as elliptic curve cryptography, a blind  digital signature method, other methods such as encryption replacement DLP. In this paper, a new blind digital signature scheme based on elliptic curve...