一种硬件表决系统模型设计

The Model Design of Hardware Voter

无论在工业控制领域的多模集群控制系统,还是在群体决策支持系统中,表决器始终作为最核心的部件,是整个系统工作效率以及可靠性的保障。一般情况下,表决器可以采用纯软件方式实现。但是在相对恶劣的工控现场,特别是在集群控制或远程决策等同络环境下,很容易受到电磁干扰,甚至计算机病毒或黑客程序的攻击和破坏,系统在一定程度上存在安全隐患。另外,在一些对响应速度有较高要求的应用场合,如电网的瞬态调度控制系统、电力系统极短期负荷预测及调配决策系统等,软件表决方式就难以满足系统的速度要求。而主要基于硬件逻辑方式实现的硬件表决器则相对具有速度和可靠性方面的一些优势。

The voter,as the key component in either multi-model group system in the field of industry control or in the group decision support system,is the guarantee of efficiency of whole work and reliability. In the common situation,the voter can be realized by the pure-software. However, in the comparative rigid industry-control field,especially in the group control or decision in distance under Internet environment, the voter is easy to be interfered by the electromagnetism,even computer virus or hacker program and system has some degree of patient danger. On the other hand,to some situations of high requirement of responsible time, such as instant control system in the electronic net, prediction of short time charge in electronic system and adjustable decision system,software voter model is hard tomeet with the requirement of system velocity. Hardware voter, however, based on the hardware logic model, has much more advantage in the velocity and reliability than software one.