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US 10,046,946 B2Granted
Measuring weight of a compartment
AssigneeOtis Elevator Company
InventorsGang Tan, Zhiyong Yao, Xiaofei Guo, Bin Wu
Life of this patent
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Abstract
Disclosed a load measurement system (100) includes a compartment (110), a damper (112) and a weight calculation unit (131). The damper (112) is configured to be positioned between the compartment (110) and a platform (121) and to compress at a predetermined rate based on a load of the compartment (110). The weight calculation unit (131) is configured to calculate a weight of the compartment (110) based on the compression of the damper (112).
Claims12
A load measurement system, comprising:
- a compartment;
- a damper configured to be positioned between the compartment and a platform and to compress at a predetermined rate based on a load of the compartment;
- and
- a weight calculation unit configured to calculate a weight of the compartment based on the compression of the damper;
- a non-contact sensor configured to measure a distance between the sensor and the compartment, wherein the weight calculation unit calculates the weight of the compartment based on the measured distance between the sensor and the compartment;
- wherein the sensor includes an H-shaped plate on a bottom surface of the compartment having ends of the H extending substantially to edges of the bottom surface.
3 more elements
Dependencies are inferred from the claim text.