Speech digital network fire alarm design based on single chip

A fire alarm and voice technology, applied in the field of sensors, can solve the problems of complex system and high cost, and achieve the effects of small size, low false alarm rate, and convenient operation and maintenance.

Inactive Publication Date: 2010-09-29
何玉玲
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  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • Speech digital network fire alarm design based on single chip
  • Speech digital network fire alarm design based on single chip
  • Speech digital network fire alarm design based on single chip

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Embodiment Construction

[0015] Such as figure 2 As shown, the alarm hardware consists of a temperature smoke signal acquisition module, an audible and visual alarm module, and a single-chip microcomputer and Modem communication module. Among them, the sensor (including smoke sensor and temperature sensor) converts non-electrical signals such as on-site temperature and smoke into electrical signals; the signal conditioning circuit conditions (amplifies, filters, etc.) the electrical signal output by the sensor to meet the requirements of A / D conversion. The circuit completes the conversion of the analog signal output by the temperature sensor and the smoke sensor to a digital signal. The sound and light alarm module is composed of a single-chip microcomputer and an alarm circuit, and is controlled by the single-chip microcomputer to realize different sound and light alarm (abnormal alarm, fault alarm, fire alarm) functions. The single-chip microcomputer and Modem communication module is composed of ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/00G08B29/00
Inventor 何玉玲
Owner 何玉玲
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