WEIGHING SYSTEM AND WEIGHING METHOD HAVING WEIGHING UNINTERRUPTED FUNCTIONS
First Claim
1. A weighing method for providing a combined weighing value with a weighing system having uninterrupted weighing functions, the weighing system having a plurality of load cells, the weighing method comprising:
- a) arranging the plurality of load cells so that each load cell has a local small neighborhood, the local small neighborhood being a neighborhood defined by four neighboring points in front, back, left, and right of the load cell and four points on the diagonal directions in a matrix, the local small neighborhood of each load cell having other load cells disposed on at least some points;
b) determining whether there is failed load cell(s), and if there is no failed load cell, then a combined weighing value of weighing system is determined according to the weighing outputs of all the load cells;
or if there is failed load cell(s), then a calculation is performed as follows;
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Accused Products
Abstract
A weighing system and a weighing method are disclosed having uninterrupted weighing functions. A plurality of load cells in the weighing system are arranged so that each load cell has a local small neighborhood, the local small neighborhood being defined by four neighboring points in front, back, left, and right of the load cell and four points on diagonal directions in a matrix. A weighing control module polls the load cells to determine whether there is failed load cell(s), and performs a calculation:
W.=f (W1, W2, W3, W4, W5, W6, W7),
where f is a non-linear mapping; and W1 . . . W8 represents weighing outputs of load cells corresponding to the eight points in the local small neighborhood so as to calculate an estimated weighing output of the failed load cell.
18 Citations
18 Claims
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1. A weighing method for providing a combined weighing value with a weighing system having uninterrupted weighing functions, the weighing system having a plurality of load cells, the weighing method comprising:
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a) arranging the plurality of load cells so that each load cell has a local small neighborhood, the local small neighborhood being a neighborhood defined by four neighboring points in front, back, left, and right of the load cell and four points on the diagonal directions in a matrix, the local small neighborhood of each load cell having other load cells disposed on at least some points; b) determining whether there is failed load cell(s), and if there is no failed load cell, then a combined weighing value of weighing system is determined according to the weighing outputs of all the load cells;
or if there is failed load cell(s), then a calculation is performed as follows; - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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2. A weighing system having uninterrupted weighing functions for providing a combined weighing value, wherein the weighing system comprises:
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a plurality of load cells; a weighing platform or carrier; and a weighing control module, the weighing control module being coupled to the plurality of load cells, where the plurality of load cells are arranged so that each load cell has a local small neighborhood, the local small neighborhood being a neighborhood defined by four neighboring points in front, back, left, and right of the load cell and four points on diagonal directions in a matrix, the local small neighborhood of each load cell having other load cells disposed on at least some points; the weighing control module being configured to poll the plurality of load cells to determine whether there is failed load cell(s), and if there is failed load cell(s), then the weighing control module is configured to perform a calculation as follows; - View Dependent Claims (3, 4, 5, 13, 14, 15, 16, 17, 18)
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Specification