本设计介绍了一种基于STC89C52RC单片机和MQ-2型半导体电阻式

本设计介绍了一种基于STC89C52RC单片机和MQ-2型半导体电阻式烟雾传感器的烟雾报警装置设计方法。设计主要以单片机为核心，外加外围传感器检测电路，显示电路和报警指示电路等，完成烟雾的浓度测量，浓度的显示，以及报警等功能。其中选用MQ-2型半导体可燃气体敏感元件烟雾传感器实现烟雾的检测，具有灵敏度高结构简单、响应快、抗干扰能力强等优点。显示电路中选用LCD1602液晶完成显示浓度的功能，外加蜂鸣器和不同颜色的发光二级管完成报警和指示功能。本设计设计方法简单，实用有效，能够在大多数场合作为烟雾或有毒气体检测装置。

結果 (英文) 1:

This design introduces STC89C52RC single chip semiconductor and MQ-2 smoke sensor smoke alarm device design. Design of main SCM as the core, plus external sensor circuit, display circuit and alarm indicator, complete smoke concentration measurement, concentrations of display and alarm function. MQ-2-type semiconductor gas sensor for smoke detection smoke sensor, has a simple structure of high sensitivity, fast response, strong anti-jamming ability and so on. LCD1602 LCD display circuit to complete shows concentration functions, plus the buzzer and different colors of light emitting diode to complete alarm and indication. This design is simple, practical and effective, and can, in most cases, as of smoke or toxic gas detection device.

結果 (英文) 2:

This design introduces a smoke alarm device design method based STC89C52RC MCU and MQ-2 smoke semiconductor resistive sensor. Designed primarily microcontroller as the core, plus peripheral sensor circuit, display circuit and alarm indication circuit, complete smoke concentration measurement, the concentration of the display, and alarm functions. Wherein selection of MQ-2-type semiconductor combustible gas sensors to achieve the smoke sensor smoke detector, it has a simple structure of high sensitivity, fast response, anti-interference ability and so on. LCD1602 LCD display circuit selection display complete concentration functions, plus buzzer and different colors of light-emitting diodes and complete alarm indicator. The design of the design method is simple, practical and effective, can in most cases as a smoke or toxic gas detection devices.

結果 (英文) 3:

This design introduces a design method of smoke alarm device based on STC89C52RC MCU and MQ-2 semiconductor resistance smoke sensor. The design mainly takes the monolithic integrated circuit as the core, the periphery sensor detection circuit, the display circuit and the alarm instruction circuit and so on, completes the smog density measurement, the density demonstration, as well as the alarm and so on function. The MQ-2 type semiconductor combustible gas sensitive element smoke sensor is used to detect the smoke, which has the advantages of high sensitivity, simple structure, fast response and strong anti-interference ability. Display circuit using LCD1602 LCD display concentration function, plus buzzer and different colors of light-emitting two tube to complete the alarm and indication function. The design and design method is simple, practical and effective, can cooperate in most fields for smoke or toxic gas detection device.