随着共享单车服务的快速发展,给人们的出行带来了极大的便利,形成一种新型共享经济.但同时也出现了许多问题,其中供需调度关系就是其中主要问题之一,过多的单车形成拥堵,过少的单车供不应求.本文根据共享单车使用时间状况,提出了一种静态调度与动态调度相结合的调度方式,促进共享单车资源的利用.

A new active control algorithm based on the hybrid reaching law is proposed for the vibration control of linear structures with fixed-order compensators under seismic excitation. The main advantages of this method in comparison with the traditional variable structure control are as follows: (i) it can make a balance between control efforts and some special response quantities of the structure through the use of linear quadratic optimal control theory; (ii) it can provide a systematic approach for design of finite output feedback controllers to facilitate practical implementations of control systems; and (iii) the excessive chattering effect can be avoided by introducing the new method. Finally, numerical simulation for a multi-DOF shear-type building model containing an active brace system is given. The simulation results show that the new control algorithm is quite effective.