CONTROL AND SUPERVISION SYSTEM HAVING DATA STORAGE

• US 3,622,994 A
• Filed: 02/11/1970
• Issued: 11/23/1971
• Est. Priority Date: 02/11/1970
• Status: Expired due to Term

• Current Assignee: Frank H. W. Schoenwitz
• Original Assignee: Frank H. W. Schoenwitz
• Inventors: Schoenwitz, Frank H. W.
• Primary Examiner(s): Pitts, Harold I.
• Application Number:
  US05/010,501
• Time in Patent Office: 650 Days
• Field of Search: 340/151,152,163
• US Class Current: 700/9
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/523 for displaying temperature data
• CPC Class Codes: F24F 11/54 using one central controller connected to several sub-controllers
• CPC Class Codes: F24F 11/56 Remote control
• CPC Class Codes: F24F 11/61 using timers
• CPC Class Codes: F24F 11/64 using pre-stored data
• CPC Class Codes: F24F 11/74 for controlling air flow rate or air velocity
• CPC Class Codes: F24F 2110/10 Temperature
• CPC Class Codes: F24F 2140/00 Control inputs relating to system states
• CPC Class Codes: G05B 19/042 using digital processors G05B19/05 takes precedence
• CPC Class Codes: G05D 23/1905 associated with tele control

Abstract

A control and supervision system for controlling and supervising the operation of a building air-conditioning system. A central station and a plurality of remote stations connected by a communication channel, wherein the central station has data associated with the remote stations stored in a memory. As messages are received from the remote station, a portion of the message can selectively operate the memory apparatus to obtain information from the memory associated with the particular station from which the message originated.

Claims

1. In a control system comprising, a central station comprising, first message transceiver apparatus for receiving and transmitting messages, processing apparatus connected to said transceiver apparatus, storage apparatus associated with said processing apparatus for storing data in a plurality of data locations, said storage apparatus being adapted to be operated sequentially from one data location to another data location of said plurality of data locations, a plurality of groups of remote condition-responsive stations connected to said central station, at least one of said groups comprising:

second message transceiver apparatus for receiving and transmitting messages, a plurality of stations, and means connecting said stations to said second message apparatus to sequentially send messages to said central station reporting the condition of each of said stations in a predetermined order, said messages comprising a portion to selectively operate said storage apparatus, when said message is for one station having data stored in said storage apparatus, from said one data location to said another data location to selectively use stored data of said another location in the processing by said processing apparatus of said condition reported from said one station.

2. The invention of claim 1 wherein, said storage apparatus has data stored in tabular form whereby the data in said one location is used and then the data in said another location is used, said portion of said messages of said second message apparatus is a bit in a particular form whereby upon said processing apparatus receiving a message and said bit in said particular form, said storage apparatus is operated to said another location to use the stored data of said another location with said message.

3. The invention of claim 2, wherein, said data stored in said another location is an address for data stored in a third location of said storage.

4. The invention of claim 3 wherein, said data stored in said third location of said memory is listed under a special address for each day of the week, and comprising;

first means for adding to said address of said stored data the day of the week to provide said special address to obtain data for a particular day.

5. In the invention of claim 5 comprising, override means for said first means whereby said special address can be fixed to provide a holiday program address.

6. The invention of claim 1 wherein, upon said processing apparatus receiving a message from said second message apparatus indicative of a condition of a particular station with said portion to operate said storage apparatus to said another location, said processing apparatus refers to said stored data of said another location associated with said particular station for processing said condition.

7. The invention of claim 1 wherein, said storage means has data associated with predetermined remote stations stored in said one data location and said another data location, and said portion of said message from a particular station upon being detected by said processing apparatus operates said storage means from said one location to said another location to use said data of said another location to process said message of said particular station.

8. The invention of claim 1 wherein, said storage means contains a plurality of data locations for the stations of each of said plurality of groups correlated with the address of each of said groups, said processing apparatus upon receiving a first message from said second message apparatus of one of said groups having said portion operates said storage apparatus to use said first data location in said storage apparatus under said one group address to thereby synchronize said system with said locations of said storage apparatus.

9. The invention of claim 1, wherein, at least one of said remote condition-responsive stations has an analogue data output and said storage apparatus has stored in said one data location limiting data for said analogue data station.

10. The invention of claim 1 wherein, at least one of said condition-responsive stations has a digital output and said storage apparatus has the desired condition of said one digital station stored in one data location.