中文摘要：

为了确保安全的矿下工作环境,设计和开发了一套矿山安全监管系统,实时监控矿下工人生产环境和设备运行状况.由于系统服务器处理能力有限以及缺乏合理有效的调度策略,系统在发生状态转换时会有一部分任务错失截止期,尤其在发生紧急情况时,关键性高的任务得不到及时响应可能会造成财产损失和人员伤亡.为此结合实时调度研究领域中的混合关键性任务模型为系统建立一个一般化模型,通过使用资源界限函数对系统的可调度性进行分析,提出一种调整任务相对截止期的启发式算法.大量对比实验表明,本文采用的调度策略能够有效地提高系统的可调度性,降低紧急任务的响应时间并且已经将改进后的矿山安全管理系统实际应用在辽宁金凤黄金矿业.

英文摘要：

To ensure the safety of w orking conditions of underground tunneling in mines,w e develop a Cyber Physical System to monitor the underground environment,w orkers and equipments and to control the equipments. The limited handling capacity of the server make emergencies not be responded in time w hich w ould lead to dangers. To address this problem w e introduce a mixed-criticality task model in real-time system and extend it to a generalized model w hich could appropriately model our system and propose a heuristic algorithm to tune task relative deadlines. Our research is grounded in a real industrial application and the on-field experiments show that our solutions is effective.