基 于 单 片 机 的 液 化 气 检 测 报 警 器 设 计
Abstract
Along with the social and economic development, fire prevention work more and more
important, but the present many research and development are focused on large place of
the fire alarm. We, therefore, it is necessary to develop a simple structure, economic and
practical family smog announciator to adapt to the demand of the market. Based on the use
of smoke alarm for family should be provided with the basic requirements and function,
this article designs a more suitable for smoke alarm.
Liquefied gas full name liquefied petroleum gas (LPG), it is the main component of
butane and propane, refinery gas, natural gas of lightweight hydrocarbons in room
temperature, atmospheric pressure gaseous, pressure and temperature in the condition, can
condensed liquid state. The design is based on 51 series microcontroller as the core, with
gas sensor detection of flammable gas mass concentration, after signal processing, directly
into single chip microcomputer, the monolithic integrated circuit to signal detection
judgment. If the quality concentration more than scheduled value, will be issued a buzzer
sound alarm, and at the same time the red light comes on, with sound and light alarm
functions, digital pipe display concentration. If the signal detection concentration not to
the expected value, a green light. System USES the ac power or batteries. This system,
which is convenient operation, small volume, low cost, low power consumption, etc.
Characteristics.
Keywords: Liquefied Petroleum Gas (LPG), 51 Microcontroller, Buzzer
