US5435147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning control system
Assignee: Hitachi Ltd
•
Filing: 1994-02-09
•
Granted: 1995-07-25
•
Expires: 2014-02-09
Abstract
Abstract An air conditioning control system ensuring the desired full utility so that the operation of a plurality of air conditioners installed in a building can be controlled and monitored at a plurality of spots in the building. The air conditioning control system includes a building's central monitor board controlling and monitoring the operation of the individual air conditioners, and a centralized control unit relaying air conditioner control information outputted from the central monitor board and information indicating the operation status of the individual air conditioners, each of the central monitor board and the centralized control unit including an input part inputting the control information to the individual air conditioners and a display part displaying the operation status information regarding the individual air conditioners. The centralized control unit further includes a decision part deciding to identify newest control information inputted from the input part of each of the central monitor board and the centralized control unit and a transmitter part transmitting this newest control information to the individual air conditioners.
Inventors
- 👤 Masamichi Mochizuki
- 👤 Keiji Sato
- 👤 Takashi Kato
- 👤 Miki Isikawa
- 👤 Tatsuya Sugiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:14
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/2803; H04L12/2816; F; F24; F24F; F24F11/00; F24F11/30; F24F11/50; F24F11/52; F24F11/54; F24F11/62; F24F11/63; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1902; G05D23/1905; H04L12/283; H04L12/2834; H04L43/00; H04L43/08; H04L43/0805; H04L43/0817; H04L67/00; H04L67/01; H04L67/12; H04L67/125; H04L2012/2847; H04L2012/285
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
108 words
An air conditioning control system comprising: a building's central monitor board controlling and monitoring the operation of a plurality of air conditioners; and a centralized control unit acting as relay means for transmitting air conditioner control information outputted from said central monitor board to the individual air conditioners, acting as a control panel for inputting of air conditioner control information, and acting also as relay means for transmitting air conditioner operation status information outputted from said individual air conditioners to said central monitor board; said centralized control unit including a controller for controlling the operation of said individual air conditioners and an input manipulator for receiving control commands.
Claim 2
Dependent Claim
108 words
An air conditioning control system comprising: a building's central monitor board controlling and monitoring the operation of a plurality of air conditioners; and a centralized control unit acting as relay means for transmitting air conditioner control information outputted from said central monitor board to the individual air conditioners, acting as a control panel for inputting of air conditioner control information, and acting also as relay means for transmitting air conditioner operation status information outputted from said individual air conditioners to said central monitor board; said centralized control unit including a controller for controlling the operation of said individual air conditioners and an input manipulator for receiving control commands.
Claim 3
Dependent Claim
350 words
An air conditioning control system comprising: a building's central monitor board controlling and monitoring the operation of a plurality of air conditioners; and a centralized control unit acting as relay means for transmitting air conditioner control information outputted from said central monitor board to the individual air conditioners and acting also as relay means for transmitting air conditioner operation status information outputted from said individual air conditioners to said central monitor board; said central monitor board including first input means for inputting said control information to said individual air conditioners, first memory means for storing both said control information inputted from said first input means and said operation status information inputted from said individual air conditioners, first display means for displaying said operation status information stored in said first memory means, and first transmission means for receiving and transmitting both said control information and said operation status information, and said centralized control unit including second memory means for storing said air conditioner control information and said air conditioner operation status information transmitted from said first transmission means, second input means for inputting said control information to said individual air conditioners, decision means for deciding to update said control information stored in said second memory means by replacing said control information stored already in said second memory means by said control information inputted now from said second input means when the result of comparison between said control information inputted from said second input means and said control information stored already in said second memory means proves that said control information inputted from said second input means differs from said control information stored already in said second memory means, said decision means acting to update said control information stored in said second memory means each time said control information is transmitted from said first transmission means, second transmission means for transmitting said control information stored in said second memory means to said individual air conditioners and receiving said operation status information from said individual air conditioners, and second display means for displaying said operation status information stored in said second memory means.
Claim 4
Dependent Claim
350 words
An air conditioning control system comprising: a building's central monitor board controlling and monitoring the operation of a plurality of air conditioners; and a centralized control unit acting as relay means for transmitting air conditioner control information outputted from said central monitor board to the individual air conditioners and acting also as relay means for transmitting air conditioner operation status information outputted from said individual air conditioners to said central monitor board; said central monitor board including first input means for inputting said control information to said individual air conditioners, first memory means for storing both said control information inputted from said first input means and said operation status information inputted from said individual air conditioners, first display means for displaying said operation status information stored in said first memory means, and first transmission means for receiving and transmitting both said control information and said operation status information, and said centralized control unit including second memory means for storing said air conditioner control information and said air conditioner operation status information transmitted from said first transmission means, second input means for inputting said control information to said individual air conditioners, decision means for deciding to update said control information stored in said second memory means by replacing said control information stored already in said second memory means by said control information inputted now from said second input means when the result of comparison between said control information inputted from said second input means and said control information stored already in said second memory means proves that said control information inputted from said second input means differs from said control information stored already in said second memory means, said decision means acting to update said control information stored in said second memory means each time said control information is transmitted from said first transmission means, second transmission means for transmitting said control information stored in said second memory means to said individual air conditioners and receiving said operation status information from said individual air conditioners, and second display means for displaying said operation status information stored in said second memory means.
Claim 5
Dependent Claim
30 words
An air conditioning control system according to claim 2, wherein said plural air conditioners include at least one pair type air conditioner and/or at least one multi type air conditioner.
Claim 6
Dependent Claim
44 words
An air conditioning control system according to claim 2, wherein said control information includes information regarding the air conditioner start-stop timing, information regarding whether said air conditioners are under operation in the cooling mode or the heating mode and information regarding the temperature settings.
Claim 7
Dependent Claim
44 words
An air conditioning control system according to claim 2, wherein said operation status information includes information regarding whether said air conditioners are under operation or not and information regarding whether said air conditioners are under operation in the cooling mode or the heating mode.
Claim 8
Dependent Claim
29 words
An air conditioning control system according to claim 2, wherein said second transmission means periodically receives and transmits said control information and said operation status information at predetermined timing.
Claim 9
Dependent Claim
381 words
An air conditioning control system comprising: a building's central monitor board controlling and monitoring the operation of a plurality of air conditioners; and a centralized control unit acting as relay means for transmitting air conditioner control information outputted from said central monitor board to said individual air conditioners and acting also as relay means for transmitting air conditioner operation status information outputted from said individual air conditioners to said central monitor board; said central monitor board including first input means for inputting said control information to said individual air conditioners, first memory means for storing both said control information inputted from said first input means and said operation status information inputted from said individual air conditioners, first display means for displaying said operation status information stored in said first memory means, and first transmission means for receiving and transmitting both said control information and said operation status information, and said centralized control unit including second memory means for storing both said control information and said operation status information transmitted from said first transmission means in said central monitor board, second input means for inputting said control information to said individual air conditioners, decision means for deciding to update said control information stored in said second memory means by replacing said control information stored already in said second memory means by said control information inputted now from said second input means when the result of comparison between said control information inputted from said second input means and said control information stored already in said second memory means proves that said control information inputted from said second input means differs from said control information stored already in said second memory means, said decision means acting to update said control information stored in said second memory means each time said control information is transmitted from said first transmission means, second transmission means for transmitting said control information stored in said second memory means, and second display means for displaying said operation status information stored in said second memory means, and a gateway provided for each of a plurality of air conditioner groups formed by grouping said plural air conditioners; said gateway including third transmission means for receiving and transmitting said control information between said centralized control unit and each of said air conditioner groups.
Claim 10
Dependent Claim
381 words
An air conditioning control system comprising: a building's central monitor board controlling and monitoring the operation of a plurality of air conditioners; and a centralized control unit acting as relay means for transmitting air conditioner control information outputted from said central monitor board to said individual air conditioners and acting also as relay means for transmitting air conditioner operation status information outputted from said individual air conditioners to said central monitor board; said central monitor board including first input means for inputting said control information to said individual air conditioners, first memory means for storing both said control information inputted from said first input means and said operation status information inputted from said individual air conditioners, first display means for displaying said operation status information stored in said first memory means, and first transmission means for receiving and transmitting both said control information and said operation status information, and said centralized control unit including second memory means for storing both said control information and said operation status information transmitted from said first transmission means in said central monitor board, second input means for inputting said control information to said individual air conditioners, decision means for deciding to update said control information stored in said second memory means by replacing said control information stored already in said second memory means by said control information inputted now from said second input means when the result of comparison between said control information inputted from said second input means and said control information stored already in said second memory means proves that said control information inputted from said second input means differs from said control information stored already in said second memory means, said decision means acting to update said control information stored in said second memory means each time said control information is transmitted from said first transmission means, second transmission means for transmitting said control information stored in said second memory means, and second display means for displaying said operation status information stored in said second memory means, and a gateway provided for each of a plurality of air conditioner groups formed by grouping said plural air conditioners; said gateway including third transmission means for receiving and transmitting said control information between said centralized control unit and each of said air conditioner groups.
Claim 11
Dependent Claim
31 words
An air conditioning control system according to claim 7, wherein each said air conditioner group includes at least one pair type air conditioner and/or at least one multi type air conditioner.
Claim 12
Dependent Claim
44 words
An air conditioning control system according to claim 7, wherein said control information includes information regarding the air conditioner start-stop timing, information regarding whether said air conditioners are under operation in the cooling mode or the heating mode and information regarding the temperature settings.
Claim 13
Dependent Claim
44 words
An air conditioning control system according to claim 7, wherein said operation status information includes information regarding whether said air conditioners are under operation or not and information regarding whether said air conditioners are under operation in the cooling mode or the heating mode.
Claim 14
Dependent Claim
29 words
An air conditioning control system according to claim 7, wherein said second transmission means periodically receives and transmits said control information and said operation status information at predetermined timing.
Claim 15
Dependent Claim
31 words
An air conditioning control system according to claim 7, wherein said gateway includes buffer memory means for temporarily storing said operation status information transmitted from each of said air conditioner groups.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-07-24 | 1999-01-23 | 1999-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-24 | 2003-01-23 | 2003-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-24 | 2007-01-23 | 2007-07-25 | $7700.00 | Window Closed / Lapsed |