V2EX on-off control

On-off Control

Definition / 定义

“开关控制;两位式控制”:一种控制方式,控制器输出只有两种状态(通常为开/关、1/0、全开/全关),当被控量低于或高于设定值(常带有回差)时切换状态。常见于恒温器、液位开关、简单电机启停控制等。(也可泛指任何“只在两种状态间切换”的控制策略。)

Pronunciation / 发音

/n f kntrol/

Examples / 例句

The heater uses on-off control to keep the room warm.
加热器用开关控制来让房间保持温暖。

In many thermostats, on-off control with hysteresis reduces rapid switching when the temperature hovers near the setpoint.
在许多恒温器中,带回差的开关控制可以在温度接近设定值上下波动时减少频繁开关。

Etymology / 词源

“on-off”由两个基本状态词 on(接通/开启)与 off(断开/关闭)并列构成,用来强调“只有两种状态”;“control”来自拉丁语系词源,核心含义是“调节、操控”。合起来指“通过在开与关之间切换来实现调节”的控制方法。

Related Words / 相关词

Literary Works / 文学作品

  • Process Dynamics and Control(Dale E. Seborg 等):讨论过程控制中的两位式/开关控制及其局限。
  • Feedback Control of Dynamic Systems(Gene F. Franklin 等):在控制系统入门语境中涉及开关型控制思想(常与“bang-bang”对照)。
  • IEC/ISO 相关自动化与控制标准文档中:常以“两位式控制/开关控制(on-off control)”描述特定控制器行为与术语定义。
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