Speech digital network fire alarm design based on single chip

Abstract

The invention discloses a speech digital network fire alarm design system based on a single chip, wherein an AT89C51 single chip is used, an integrated temperature sensor AD590 and a gas sensor TGS202 are selected as the sensitive elements, and a speech digital network alarm applicable to the fire alarm of a small institute is developed by using a multi-sensor information fusion technology. The alarm hardware consists of a temperature smoke signal acquisition module, an audible and visual alarm module, the a single chip and a Modem communication module. The sudden change of the indoor smoke (CO2, CO) and temperature can be alarmed (audible and visual alarm); in the case of hardware faults (such as sensor drop, damage of internal device and the like), a fault alarm can be sent; if a parameter is abnormal (for example, the smoke concentration is excessively great or the temperature is excessively high,), an abnormity alarm signal can be sent such that the operator on duty can handle the situation on site; if both the smoke and the temperature are abnormal, a fire disaster happens, a fire alarm is sent, and the fire information is reported to a fire command center. The system is safe and reliable and ensures low rate of false alarm. Moreover, the system has wide application prospect due to the small size, convenient operation and maintenance, low cost, and the like.

Description

technical field [0001] The design of the present invention is based on single-chip microcomputers, sensors, and involves signal processing, computer and other knowledge fields. Specifically, using AT89C51 single-chip microcomputer, using integrated temperature sensor AD590 and gas sensor TGS202 as sensitive components, and using multi-sensor information fusion technology, a voice-digital networking alarm that can be used for fire alarm in small units is developed. Background technique [0002] my country's automatic fire alarm control system has experienced a development process from scratch, from simple to complex, and its intelligence is getting higher and higher. At present, domestic manufacturers mostly focus on the research and development of large-scale fire alarm systems in large warehouses, shopping malls, high-end office buildings, hotels and other places. They use centralized area alarm control methods, and their systems are complex and costly. However, in residen...

AI Technical Summary

Problems solved by technology

At present, domestic manufacturers mostly focus on the research and development of large-scale fire alarm systems in large warehouses, shopping malls, high-end office buildings, hotels and other places. They use centralized area alarm control methods, and their systems are complex and costly.

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