Building intercommunication system

The utility model provides a building talkback system with a digital processing technology. The utility model mainly includes a converter, a wireless external memory module, a wired external memory module, an Ethernet, an outdoor machine, and an indoor machine. The utility model is characterized in...

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Bibliographic Details
Main Authors QUAN GUANYOU, QIU JINTAO, HUANG JIANGMIN
Format Patent
LanguageChinese
English
Published 16.04.2008
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
SELECTING
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The utility model provides a building talkback system with a digital processing technology. The utility model mainly includes a converter, a wireless external memory module, a wired external memory module, an Ethernet, an outdoor machine, and an indoor machine. The utility model is characterized in that the inverter includes a main control module, a video frequency decoding module, an audio frequency decoding module, a local cache, a CPLD, an electrical source and so on. Using the digital processing technology, the utility model overcomes the problems that the transmission distance is limited, the movable images cannot be recorded, compressed, alarm pre-recorded and so on. The utility model has the function of combining with the data recording function, has the function of dynamic detecting, calling and alarm pre-recording, and can use the remote external memory module to realize long-distance transmission.
Bibliography:Application Number: CN2007205725U