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 adjacent 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, by a weighing control module of the weighing system, upon a start of a weighing operation, whether there is at least one load cell having no weighing output,when there is no load cell having no weighing output, then a combined weighing value of weighing system is determined according to the weighing outputs of all the load cells; and
when there is at least one load cell having no weighing output, the at least one load cell being at least one failed load cell, then a calculation is performed by the weighing control module as follows for each of the at least one failed load cell;
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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.
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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 adjacent 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, by a weighing control module of the weighing system, upon a start of a weighing operation, whether there is at least one load cell having no weighing output, when there is no load cell having no weighing output, then a combined weighing value of weighing system is determined according to the weighing outputs of all the load cells; and when there is at least one load cell having no weighing output, the at least one load cell being at least one failed load cell, then a calculation is performed by the weighing control module as follows for each of the at least one failed load cell; - 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 adjacent 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, at a start of a weighing operation, whether there is at least one load cell having no weighing output, and when there is at least one load cell having no weighing output, the at least one load cell being at least one failed load cell, then the weighing control module is configured to perform a calculation as follows for each of the at least one failed load cell; - View Dependent Claims (3, 4, 5, 13, 14, 15, 16, 17, 18)
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Specification