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针对基于模型的事件触发状态反馈控制系统,提出一种触发门限可变的触发机制.该触发机制能够在被控对象面临变化较大且快的干扰时,自动调整触发门限变大,避免频繁的事件触发导致网络通信资源浪费;能够在被控对象面临变化较小的干扰时,通过定时触发,避免长时间没有事件发生导致的通信网闲置,同时自动调整触发门限变小,提升控制性能.仿真结果表明,较固定门限触发机制,所提出的触发机制能利用更少的通信资源实现整体控制性能的提升.
Aiming at the model-based event-triggered state feedback control system, a triggering mechanism with variable triggering threshold is proposed, which can automatically adjust the triggering threshold to be larger when the controlled object is faced with large and fast changes, and avoid frequent Event triggering can lead to waste of network communication resources; when the controlled object is facing minor changes, it can be triggered by timing to avoid communication network idle for a long time without any event and automatically adjust the trigger threshold to be smaller to improve the control performance. The results show that compared with the fixed threshold trigger mechanism, the proposed trigger mechanism can use fewer communication resources to improve the overall control performance.