一种倒计时装置及使用方法

By introducing a dial switch and combining multiple control methods into the countdown device, the problem of a single control method is solved, and flexible countdown control is achieved. It is suitable for various occasions and has the advantages of simple structure, small size and low cost.

CN117970769BActive Publication Date: 2026-07-17SHAANXI SCI TECH UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI SCI TECH UNIV
Filing Date
2024-01-31
Publication Date
2026-07-17

Smart Images

  • Figure CN117970769B_ABST
    Figure CN117970769B_ABST
Patent Text Reader

Abstract

本发明公开了一种倒计时装置及使用方法,属于电子技术领域,属于电子技术领域,设置的拨盘开关SW7连接有电源,并与MCU连接;红外手势传感器与MCU连接;红外接收电路与MCU连接;按键输入电路与MCU连接;按键包括黄、红、绿、蓝四个按键;其中,当拨盘开关SW7的状态为低电平时,读取预置时间或默认时间,通过操作黄色按键,设置左右方向手势操作每次增加的步长;当拨盘开关SW7的状态为高电平时,通过操作红绿蓝按键增加和减少预置时间,或通过红外遥控设置预置时间,对预置时间进行修改;当预置时间修改结束后,通过连续重复执行两次前后方向的手势操作,控制倒计时的启停。该倒计时装置能够适用于不同场合的倒计时,控制方式灵活,工作可靠。
Need to check novelty before this filing date? Find Prior Art