By using access control matrix, we can achieve the real time and dynamic control of task, which ensures the system security.
通过引入访问控制矩阵，实现了对任务的实时、动态的控制，从而确保了系统的安全。
The characteristic of the periodic task of control system is analyzed, and a periodic task model is given.
分析了控制系统中的周期性任务特性，给出了控制系统中周期性任务模型。
According to the feature of task of control system, a new method for scheduling real-time tasks is presented.
针对控制系统中任务的特点，提出了一种实时任务调度方法。
应用推荐