Centralized control method for looms and device thereof

Claim 2

(2) A centralized control method for looms according to claim 1, wherein said switches of the respective looms are switched to said off-line state for variations of weaving data of said looms, control conditions being adjusted for every looms, said control conditions after said adjustment being stored in said host computer as specific conditions peculiar to said respective associated looms, and at the time of weaving thereafter by said looms in the on-line state, said specific conditions being transmitted to said respective looms.

Claim 3

(3) A centralized control method for looms with use of a centralized control appratus for looms, said centralized control apparatus comprising a host computer and a plurality of looms controlled based on control data available from said host computer, said method comprising the steps of: (a) registering style numbers representative of fabric specifications as well as the control data in said host computer, (b) correcting said control data in response to variations of loom characteristics peculiar to the respective looms, (c) affixing said style numbers and loom numbers thereof to said corrected control data respectively and registering them in said host computer, (d) allowing said host computer to decide, as a certain style number is designated to a certain loom, whether peculiar control data affixed with a loom number associated with said designated style number are present or not, (e) allowing said host computer to read, if said specific peculiar data are present, them from the host computer, and (f) allowing said host computer to deliver said read control data to the corresponding looms.

Claim 4

(4) A centralized control method for looms with use of a centralized control apparatus for looms, said centralized control apparatus comprising a host computer, a memory connected with said host computer, and a plurality of the looms controlled by an operation signal from said host computer, said method comprising the steps of: (a) storing past accumulation data in said memory, (b) allowing said host computer to decide, based on fabric specifications for a certain loom entered in the host computer, whether any control data having the same specifications as said fabric specifications for controlling operation of said loom are stored in said memory, (c) allowing said host computer to read, if stored, said stored control data, (d) allowing said host computer to read, unless stored, similar specification data to subject said similar specification data to prescribed arithmetic operation or prescribed interpolation operation, (e) allowing said host computer to estimate standard set values based on said arithmetic operation; and (f) allowing said host computer to deliver said standard set values to said plurality of said looms as said operation signal.

Claim 5

(5) A centralized control method for looms according to claim 4, wherein said standard set values estimated by said host computer include numbers of RPM of loom prime motors and warp yarn total tension.

Claim 6

(6) A centralized control method for looms according to claim 4, wherein said standard set values estimated by the host computer include on/off timing of respective nozzles and fluid pressure of nozzles for weft insertion.

Claim 7

(7) A centralized control method for looms with use of a centralized control apparatus for looms, said centralized control apparatus comprising a host computer, a memory connected with said host computer, and a plurality of the looms controlled by an operation signal from said host computer, said method comprising the steps of: (a) storing past accumulation data in said memory, (b) allowing said host computer to decide, based on fabric specifications for a certain loom entered in said host computer, whether any control data having the same specifications as said fabric specifications for controlling operation of said loom are stored in said memory, (c) allowing said host computer to read, if stored, said control data, (d) allowing said host computer to read, unless stored, similar specification data to subject said data to prescribed arithmetic operation or prescribed interpolation operation, (e) allowing said host computer to estimate said standard set values based on said arithmetic operator, (f) allowing said host computer to deliver said standard set values to said plurality of said looms as said operation signal, (g) allowing said host computer to compare various operation data available from the looms starting to be operated by said standard set values with reference values previously entered in the order of priority in the host computer to optimally control the looms, and (h) allowing said host computer to correct said standard set values based on said comparison results.

Claim 8

(8) A centralized control method for looms according to claim 7, wherein said reference values previously entered for the optimal control of the looms include the rate of operation of the looms and warp yarn total tension.

Claim 9

(9) A centralized control method for looms according to claim 7, wherein said reference values previously entered for the optimal control of the looms include fluid pressure.

Claim 10

(10) A centralized control method for looms according to claim 7, wherein said various operation data available from the looms include a number of stop times of the looms due to broken warp and weft yarns.

Claim 11

(11) A centralized control apparatus for looms comprising: (a) fabric specification input means for entering fabric specifications, (b) accumulation data memory for storing past accumulation data, (c) set value evaluation means for conducting prescribed arithmetic operation or prescribed interpolation operation with use of data representative of said fabric specifications entered from said fabric specification input means at the time of entering non- accumulation fabric specifications and said accumulation data read out from said accumulation data memory and thereby evaluating standard set value as an operation signal for loom control, (d) a set value memory for storing said standard set values evaluated by said set value evaluation means, (e) set value transmitting means for transmitting said standard set values to a plurality of the looms, (f) operation data receiving means for receiving various operation data from said plurality of the looms, and (g) set value change means for changing said standard set values stored in said set value memory based on said various operation data received by said operation data receiving means.