| US 7,600,485 B2 | ||
| Method for calibration of milk meters in a milking system | ||
| Anders Umegård, Rönninge (Sweden); and Helmut Obermüller, Stockholm (Sweden) | ||
| Assigned to Delaval Holding AB, Tumba (Sweden) | ||
| Appl. No. 10/529,544 PCT Filed Sep. 29, 2003, PCT No. PCT/SE03/01506 § 371(c)(1), (2), (4) Date Jan. 20, 2006, PCT Pub. No. WO2004/028242, PCT Pub. Date Apr. 08, 2004. |
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| Claims priority of application No. 0202879 (SE), filed on Sep. 30, 2002. | ||
| Prior Publication US 2006/0137615 A1, Jun. 29, 2006 | ||
| Int. Cl. A01J 3/00 (2006.01); A01J 5/00 (2006.01); G01F 25/00 (2006.01); G01P 21/00 (2006.01) | ||
| U.S. Cl. 119—14.18 [119/14.02; 119/DIG. 1; 119/14.15; 119/14.01; 73/1.34] | 9 Claims |
| 1. A method for calibrating at least one milk meter in a milking system comprising at least one milking station having at
least one milk meter that measures at least one value of a parameter that corresponds to milking performance of a milking
animal, said milking station is accessible to a herd of milking animals, said method comprising the steps of:
determining an internal or external reference value (RV) which reflects an amount of milk received from a plurality of milking
animals during a selected time period in a reference unit,
retrieving all measured values during a selected time period for said at least one milk meter that by itself contribute to
the amount of milk received by said reference unit,
comparing said reference value (RV) with a sum of all retrieved measured values and calculating a correction function for
at least one of said milk meters which has been determined to be in a condition to cause errors in measurement, and therefore
to be in need of a calibration, and
calibrating said at least one of said milk meters by using said calculated correction function to adjust the measured value
from said at least one milk meter.
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