Invention Grant
US07770403B2 Indoor and outdoor unit communication via signal from a power line
失效
通过来自电力线的信号进行室内和室外单元通信
- Patent Title: Indoor and outdoor unit communication via signal from a power line
- Patent Title (中): 通过来自电力线的信号进行室内和室外单元通信
-
Application No.: US12368681Application Date: 2009-02-10
-
Publication No.: US07770403B2Publication Date: 2010-08-10
- Inventor: Yasuyuki Kojima , Noboru Akiyama , Takeshi Onaka , Tatsumi Yamauchi , Koichi Taniguchi , Koichi Tokushige , Noriyuki Bunkou , Keiji Sato
- Applicant: Yasuyuki Kojima , Noboru Akiyama , Takeshi Onaka , Tatsumi Yamauchi , Koichi Taniguchi , Koichi Tokushige , Noriyuki Bunkou , Keiji Sato
- Applicant Address: JP Tokyo
- Assignee: Hitachi Appliances, Inc.
- Current Assignee: Hitachi Appliances, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Crowell & Moring LLP
- Priority: JP2003-109709 20030415
- Main IPC: F25B49/00
- IPC: F25B49/00 ; G05D23/00 ; G01M1/38

Abstract:
An air conditioning system is arranged to use a power line for communication. The air conditioning system includes one or more indoor units, one or more outdoor units, and a system controller for controlling the indoor units or outdoor units and executes communications between the indoor units and the outdoor units as overlapping a signal on the power line for supplying electric power. The outdoor units are connected with the system controller through a leased communication line. The indoor unit provides a power line communication device being connected with the power line. The outdoor unit provides a leased communication device being connected with the leased communication line. A bridge is also provided for connecting the leased communication line and the power line. The control information is exchanged mutually between the indoor units, the outdoor units and the system controller through the power line.
Public/Granted literature
- US20090145147A1 INDOOR AND OUTDOOR UNIT COMMUNICATION VIA SIGNAL FROM A POWER LINE Public/Granted day:2009-06-11
Information query