阅读说明：本技术 开关控制方法、开关控制器、系统及存储介质 (Switch control method, switch controller, system and storage medium ) 是由 刘定忠 于 2021-05-26 设计创作，主要内容包括：本申请涉及一种开关控制方法,上述方法应用于开关控制器,开关控制器用于与用电回路连接,用于控制用电回路的导通或断开,上述方法包括以下步骤：检测用电回路的过零点；根据过零点及预设的动作时间阈值,计算获取特征保护点；当满足预设的控制条件时,则在特征保护点处生成控制指令。本申请还涉及一种应用上述方法的开关控制器、系统及存储介质。采用本发明的使用可靠性高、安全性高。(The application relates to a switch control method, which is applied to a switch controller, wherein the switch controller is connected with an electric circuit and used for controlling the on or off of the electric circuit, and the method comprises the following steps: detecting a zero crossing point of the circuit; calculating and acquiring a characteristic protection point according to the zero crossing point and a preset action time threshold; and when the preset control condition is met, generating a control instruction at the characteristic protection point. The application also relates to a switch controller, a system and a storage medium applying the method. The invention has high use reliability and high safety.)