Indoor poisonous gas detection and automatic exhaust device

Abstract

The invention discloses an indoor poisonous gas detection and automatic exhaust device. The device comprises a carbon monoxide sensor, a carbon dioxide sensor, a control box and an exhaust fan. The carbon monoxide sensor and the carbon dioxide sensor are each provided with a wireless signal transmitter; a control component, a control circuit, a wireless signal receiver and a single-chip microcomputer are arranged inside the control box, and the wireless signal receiver is used for receiving signals transmitted by the wireless signal transmitters in the carbon monoxide sensor and the carbon dioxide sensor; safe carbon monoxide and carbon dioxide concentration values can be set through the single-chip microcomputer, when either one of the carbon monoxide and carbon dioxide concentration values received by the control box is larger than the set value, the exhaust fan is turned on, it is ensured that the concentration value of indoor poisonous gas is within the safety range, when the detected carbon monoxide and carbon dioxide concentration values are both lower than the set value, the exhaust fan is not operated, the indoor temperature cannot be low all the time, and the dining atmosphere is not affected.

Description

technical field [0001] The invention relates to the field of indoor gas detection devices, in particular to an indoor toxic gas detection and automatic exhaust device. Background technique [0002] When the weather is cold in winter, people often like to eat some barbecue or charcoal hot pot when they have dinner together. When the exhaust fan is always on, although the ventilation effect is good, it will lead to low indoor temperature and affect the atmosphere of the dinner; when the switch of the exhaust fan is artificially controlled , since dinner is usually accompanied by drinking, it is easy to forget to turn on the exhaust fan, resulting in the burning of charcoal, the indoor carbon dioxide content continues to increase, and the indoor oxygen gradually becomes insufficient, which further leads to incomplete combustion of charcoal and produces carbon monoxide, resulting in Occurrence of carbon monoxide and carbon dioxide poisoning events. Contents of the invention ...

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Problems solved by technology

[0002] When the weather is cold in winter, people often like to eat some barbecue or charcoal hot pot when they have dinner together. When the exhaust fan is always on, although the ventilation effect is good, it will lead to low indoor temperature and affect the atmosphere of the dinner; , because the dinner is usually accompanied by drinking, it is easy to forget to turn on the exhaust fan, resulting in the burning of charcoal, the indoor carbon dioxide content continues to increase, and the indoor oxygen is gradually insufficient, which further leads to incomplete combustion of charcoal and produces carbon monoxide. Occurrence of carbon monoxide and carbon dioxide poisoning incidents

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