公开(公告)号：US11967982B2

公开(公告)日：2024-04-23

申请号：US17455813

申请日：2021-11-19

申请人： Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd ,  Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd ,  Mettler-Toledo International Trading (Shanghai) Co., Ltd

发明人： ShenHui Wang ,  JingKe Wang ,  ZhengQuan Liu ,  Qin Sun

IPC分类号： H04B1/10

CPC分类号： H04B1/1036 ,  H04B2001/1045 ,  H04B2001/1063

摘要： A method for real-time processing of a detection signal, wherein signal processing is respectively performed when a detection signal is converted from a high level to a low level or vice versa. A moment at which a level of the detection signal is converted is recorded as a start point. A status of the detection signal is then detected in real time at a current moment. A current time width is compared to a maximum interval width of pre-set interference signals, and signal levels are determined and recorded from the start point to the current moment. Using characteristics of different interference signals, anti-interference processing is performed by using a targeted edge positioning and width recognition method, so that the delay impact of filtering on signals is avoided, improving both the recognition precision of weighing data of a checkweigher and the overall performance of the checkweigher.

公开(公告)号：US20230396276A9

公开(公告)日：2023-12-07

申请号：US17455813

申请日：2021-11-19

申请人： Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd ,  Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd ,  Mettler-Toledo International Trading (Shanghai) Co., Ltd.

发明人： ShenHui Wang ,  JingKe Wang ,  ZhengQuan Liu ,  Qin Sun

IPC分类号： H04B1/10

CPC分类号： H04B1/1036 ,  H04B2001/1045 ,  H04B2001/1063

摘要： A method for real-time processing of a detection signal, wherein signal processing is respectively performed when a detection signal is converted from a high level to a low level or vice versa. A moment at which a level of the detection signal is converted is recorded as a start point. A status of the detection signal is then detected in real time at a current moment. A current time width is compared to a maximum interval width of pre-set interference signals, and signal levels are determined and recorded from the start point to the current moment. Using characteristics of different interference signals, anti-interference processing is performed by using a targeted edge positioning and width recognition method, so that the delay impact of filtering on signals is avoided, improving both the recognition precision of weighing data of a checkweigher and the overall performance of the checkweigher.

公开(公告)号：US20220173758A1

公开(公告)日：2022-06-02

申请号：US17455813

申请日：2021-11-19

申请人： Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd ,  Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd ,  Mettler-Toledo International Trading (Shanghai) Co., Ltd.

发明人： ShenHui Wang ,  JingKe Wang ,  ZhengQuan Liu ,  Qin Sun

IPC分类号： H04B1/10

摘要： A method for real-time processing of a detection signal, wherein signal processing is respectively performed when a detection signal is converted from a high level to a low level or vice versa. A moment at which a level of the detection signal is converted is recorded as a start point. A status of the detection signal is then detected in real time at a current moment. A current time width is compared to a maximum interval width of pre-set interference signals, and signal levels are determined and recorded from the start point to the current moment. Using characteristics of different interference signals, anti-interference processing is performed by using a targeted edge positioning and width recognition method, so that the delay impact of filtering on signals is avoided, improving both the recognition precision of weighing data of a checkweigher and the overall performance of the checkweigher.

公开(公告)号：US20240280400A1

公开(公告)日：2024-08-22

申请号：US18571375

申请日：2022-06-29

申请人： Mettler-Toledo (Changzhou) Measurement Technology Ltd. ,  Mettler-Toledo (Changzhou) Precision Instruments Ltd. ,  Mettler-Toledo International Trading (Shanghai) Co., Ltd.

发明人： Shenhui Wang ,  Along Wei ,  Qin Sun ,  Qi Wan ,  Song Zhang

IPC分类号： G01G23/10

CPC分类号： G01G23/10

摘要： These disclosures provide a filtering method and control apparatus for a load cell. The method includes: filtering, by using a plurality of filtering units, first weighing data obtained by the load cell to obtain a plurality of pieces of second weighing data, where the filtering units have different settling times. Obtaining a fluctuation index of each piece of second weighing data, and establishing a correspondence between a fluctuation index and a settling time of each filtering unit. Determining a target filtering unit based on the correspondence according to a weighing requirement, where a fluctuation index of the target filtering unit matches a target precision in the weighing requirement, and a settling time of the target filtering unit matches a target speed in the weighing requirement. The method and apparatus disclosed improves speed and user experience in a weighing process.

公开(公告)号：US12055431B2

公开(公告)日：2024-08-06

申请号：US17631000

申请日：2020-07-29

申请人： Mettler-Toledo (Changzhou) Measurement Technology Ltd. ,  Mettler-Toledo (Changzhou) Precision Instruments Ltd. ,  Mettler-Toledo International Trading (Shanghai) Co., Ltd.

发明人： Song Zhang ,  Shenhui Wang ,  Shenjian Qian ,  Qin Sun

IPC分类号： G01G23/01 ,  G01G23/37

CPC分类号： G01G23/01 ,  G01G23/3714

摘要： A hysteresis compensation method, in which a hysteresis error is calculated for an obtained weighing value by means of an ideal hysteresis error model, and an ideal compensation value is further calculated by means of an ideal hysteresis compensation model, wherein by using a proportional relationship between a system hysteresis error model established in hysteresis calibration and the ideal hysteresis error model, the ideal compensation value is corrected to a final compensation value. The method establishes a mapping relationship between the system's own hysteresis compensation and the ideal state hysteresis compensation, and realizes the transformation of a complicated hysteresis error compensation situation into an ideal hysteresis error compensation situation. The method not only has a good compensation effect for the hysteresis error compensation under ideal situations, but also can obtain an excellent hysteresis compensation effect under complicated hysteresis situations.

公开(公告)号：US20220268622A1

公开(公告)日：2022-08-25

申请号：US17631000

申请日：2020-07-29

申请人： Mettler-Toledo (Changzhou) Measurement Technology Ltd. ,  Mettler-Toledo (Chanzhou) Precision Instruments Ltd. ,  Mettler-Toledo International Trading (Shanghai) Co., Ltd.

发明人： Song Zhang ,  Shenhui Wang ,  Shenjian Qian ,  Qin Sun

IPC分类号： G01G23/01 ,  G01G23/37

摘要： A hysteresis compensation method, in which a hysteresis error is calculated for an obtained weighing value by means of an ideal hysteresis error model, and an ideal compensation value is further calculated by means of an ideal hysteresis compensation model, wherein by using a proportional relationship between a system hysteresis error model established in hysteresis calibration and the ideal hysteresis error model, the ideal compensation value is corrected to a final compensation value. The method establishes a mapping relationship between the system's own hysteresis compensation and the ideal state hysteresis compensation, and realizes the transformation of a complicated hysteresis error compensation situation into an ideal hysteresis error compensation situation. The method not only has a good compensation effect for the hysteresis error compensation under ideal situations, but also can obtain an excellent hysteresis compensation effect under complicated hysteresis situations.