Air conditioner

An air conditioner is provided that includes a plurality of indoor units configured to be distributed and installed in a plurality of floors in a building; a controller configured to monitor and control the plurality of indoor units; and a wireless communication unit configured to transmit and recei...

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Bibliographic Details
Main Author Lee, Kwonhyung
Format Patent
LanguageEnglish
Published 23.01.2024
Subjects
AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING
BLASTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
HEATING
LIGHTING
MECHANICAL ENGINEERING
MULTIPLEX COMMUNICATION
RANGES
VENTILATING
WEAPONS
WIRELESS COMMUNICATIONS NETWORKS
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Summary:An air conditioner is provided that includes a plurality of indoor units configured to be distributed and installed in a plurality of floors in a building; a controller configured to monitor and control the plurality of indoor units; and a wireless communication unit configured to transmit and receive data by the controller, the plurality of indoor units, and one outdoor unit using a wireless communication method. The wireless communication unit comprises a transmitter and a receiver using a Sub-GHz band frequency. The transmitter includes an optical orthogonal code generator configured to first cipher source data using an optical orthogonal code, and a narrow-band chaotic signal generator configured to secondarily cipher using a chaotic signal. The source data is sequentially encrypted through the optical orthogonal code generator and the narrowband chaotic signal generator and then transmitted.
Bibliography:Application Number: US202017421517