| 摘要 |
PURPOSE: An air purifying robot using a multistep gas sensor is provided to be used in various atmospheres. CONSTITUTION: An air purifying robot using a multistep gas sensor comprises a first gas sensor(100), a second gas sensor(110), a comparing unit(200), an user input portion(300), a database(400), a first control unit(500), a second control unit(510), and two or more air freshener spraying unit(600). The user input portion is set following the need of a user. The data base saves setting values and smell recognizing information. The first control unit maintains atmosphere following the setting of a user. The second gas sensor controls a spraying level. [Reference numerals] (100) First gas sensor; (110) Second gas sensor; (200) Comparing unit; (300) User input portion; (400) Database; (500) First control unit; (510) Second control unit; (600) Spraying unit; (700) Wireless transmission unit; (800) Display unit
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