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Household smog sensor

A smoke sensor, household technology, used in instruments, fire alarms and alarms that rely on smoke/gas effects, etc., can solve the problems of disconnected battery damage, easy failure of smoke detectors, and lack of battery undervoltage detection. , to achieve the effect of high reliability, low power consumption and low power consumption

Inactive Publication Date: 2016-05-18
SHAANXI HI TECH ENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, my country's current "Code for Fire Protection Design of Buildings" (GB50016-2006) does not provide for the installation of automatic fire alarm systems for residential buildings.
Through research, it is found that the existing smoke detectors are prone to failure, disconnection or battery damage, lack of battery undervoltage detection, false alarms, and extremely unstable work

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A household smoke sensor is composed of four parts: a main control chip, a smoke detection module, an alarm module and a power supply module. Among them, the main control chip adopts 16-bit ultra-low power single-chip microcomputer MSP430F2012, which performs smoke detection every 8s. The smoke detection module uses a special optical labyrinth as the smoke receiving device, and is equipped with infrared emitting diodes and infrared receiving diodes. The system alarm circuit uses RE46C100 to drive the piezoelectric buzzer. The power module is connected with the voltage regulator TPS715333. The power supply module provides two operating voltages of 9V and 3.3V, 9V is supplied to RE46C100, and 3.3V is the operating voltage of MSP430F2012.

[0014] The P2.7 port of the main control chip MSP430F2012 regularly drives the infrared emitting part to emit infrared rays. If there is smoke entering the optical maze, light scattering will be generated. After receiving the light si...

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PUM

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Abstract

The invention relates to the field of the fire-fighting technology, particularly to a household smog alarm device comprising a main control chip, a smoke detection module, an alarm module and a power module. According to the MSP430-single-chip-microcomputer-based household smog alarm device provided by the invention, precise detection of a smog signal and a battery under-voltage phenomenon can be realized. In the hardware model selection and software design, requirements of low cost and low power consumption of the household system are taken into consideration fully. The household smog alarm device has characteristics of small size, low power consumption, high sensitivity, flexible application, high reliability, and good real-time performance and the like.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a household smoke alarm. Background technique [0002] In recent years, there have been 6 to 7 million fires worldwide each year, of which residential fires account for more than 80%. According to the statistical report "Smoke Alarms for Home Fires in the United States", it is found that for every 1,000 reported fires, if there are smoke alarms and wet sprinklers, the death rate caused by fires can be reduced by 84%. The installation of home fire alarm systems has already been promoted and implemented in foreign countries, and many countries strictly implement them with corresponding laws and regulations. However, my country's current "Code for Fire Protection in Building Design" (GB50016-2006) does not provide for the installation of automatic fire alarm systems in residential buildings. Through research, it is found that the existing smoke detectors are prone to failu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/10G08B17/107
Inventor 王耀斌
Owner SHAANXI HI TECH ENERGY DEV