Weighing apparatus rezero fault prediction and remote alerting

• US 9,518,862 B2
• Filed: 11/04/2014
• Issued: 12/13/2016
• Est. Priority Date: 11/04/2014
• Status: Active Grant

• Current Assignee: Mettler-Toledo LLC (Mettler-Toledo International Inc.)
• Original Assignee: Mettler-Toledo LLC (Mettler-Toledo International Inc.)
• Inventors: Toohey, Patrick
• Primary Examiner(s): Gibson, Randy W
• Application Number:
  US14/532,718
• Publication Number:
  US 20160123794A1
• Time in Patent Office: 770 Days
• US Class Current: 1/1
• CPC Class Codes: G01G 23/166 involving comparison with a reference value
• CPC Class Codes: G01G 23/18 Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
• CPC Class Codes: G01G 23/3735 using a digital network

Abstract

Systems and methods for remotely monitoring the rezero status of a weighing apparatus, such as a checkweigher. Remotely located interested parties may sign up for notifications related to the weighing apparatus rezero status, and the interested parties may be automatically electronically notified when certain status conditions occur. A hierarchy of notifications may be established such that not all interested parties will receive every notification. System and method embodiments may also operate to identify certain trends in rezero data and to resultantly predict future rezero faults.

Claims

1. A computerized method of monitoring and notifying one or more remotely located interested parties of the rezero status of a weighing apparatus, said method comprising:

providing a computerized local monitoring system to monitor a rezero status of at least one weighing apparatus of interest and to transmit weighing apparatus rezero data;

placing an external system in communication with the local monitoring system, the external system including a remote server configured at least to transmit an electronic notification to a remotely located interested party based on data received from the local monitoring system;

using associated programming to predict a rezero fault by;

(1) identifying a plurality of recorded rezero data deadload weight readings corresponding to a series of previous weighing apparatus rezero operations and received from the at least one weighing apparatus at times t₁- t_n,

(2) identifying the point in time of a next scheduled weighing apparatus rezero operation,

(3) identifying a predetermined weighing apparatus rezero threshold value in the form of a maximum deadload weight that may be associated with a given rezero operation,

(4) applying linear regression analysis to the plurality of recorded rezero data deadload weight readings to predict whether the deadload weight as seen by the weighing apparatus would exceed the predetermined rezero threshold value prior to the identified next scheduled weighing apparatus rezero operation; and

if it is predicted that the deadload weight as seen by the weighing apparatus would exceed the predetermined rezero threshold value prior to the identified next scheduled weighing apparatus rezero operation, using the remote server to transmit an electronic notification to a remotely located interested party.

2. The computerized method of claim 1, wherein the programming is associated with the local monitoring system.

3. The computerized method of claim 1, wherein the programming is associated with the remote server.

4. The computerized method of claim 1, further comprising the steps of:

presenting an interested party with the option of receiving electronic notifications;

acquiring contact information from the interested party; and

prompting the interested party to elect the types of notifications the interested party desires to receive.

5. The computerized method of claim 1, wherein the notification is an alert.

6. The computerized method of claim 5, wherein the alert is categorized by severity.

7. The computerized method of claim 6, wherein alerts are transmitted to different interested parties based on the categorization of the alert and a level or similar ranking associated with the interested party.

8. The computerized method of claim 1, wherein a transmitted notification includes a weighing apparatus identifier.

9. The computerized method of claim 1, wherein the local monitoring system is a part of a given weighing apparatus of interest.

10. The computerized method of claim 1, wherein the local monitoring system simultaneously monitors more than one weighing apparatus.

11. A computerized method of monitoring and notifying one or more remotely located interested parties of a weighing apparatus predicted rezero fault, said method comprising:

providing a computerized local monitoring system to monitor a rezero status of at least one weighing apparatus of interest and to transmit weighing apparatus rezero data;

placing an external system in communication with the local monitoring system, the external system including a remote server configured at least to transmit an electronic notification to a remotely located interested party based on data received from the local monitoring system;

using associated programming to predict a rezero fault by;

(1) plotting on a graph of deadload weight readings vs. time, a plurality of recorded rezero data deadload weight readings corresponding to a series of previous weighing apparatus rezero operations and received from the at least one weighing apparatus at times t₁-t_n,

(2) identifying the current point in time relative to the recorded rezero weight readings,

(3) identifying the point in time of a next scheduled weighing apparatus rezero operation,

(4) identifying a predetermined weighing apparatus rezero threshold value in the form of a maximum deadload weight that may be associated with a given rezero operation,

(5) fitting a linear regression line to the plotted weight readings, and

(6) determining whether the linear regression line will cross a line representing the predetermined rezero threshold value prior to the identified next scheduled weighing apparatus rezero operation; and

if it is determined that the linear regression line will cross the line representing the predetermined rezero threshold value prior to the identified next scheduled weighing apparatus rezero operation, using the remoter server to transmit an electronic notification of a predicted rezero fault to a remotely located interested party.

12. The computerized method of claim 11, wherein the programming is associated with the local monitoring system.

13. The computerized method of claim 11, wherein the programming is associated with the remote server.

14. The computerized method of claim 11, further comprising the steps of

presenting an interested party with the option of receiving electronic notifications;

acquiring contact information from the interested party; and

prompting the interested party to elect the types of notifications the interested party desires to receive.

15. The computerized method of claim 11, wherein the notification is an alert.

16. The computerized method of claim 15, wherein the alert is sent immediately upon identification of a predicted rezero fault.

17. The computerized method of claim 15, wherein the timing of sending the alert depends on the time until the predicted rezero fault.

18. A computerized method of monitoring and electronically notifying one or more remotely located interested parties of the rezero status of a weighing apparatus, said method comprising:

providing a computerized local monitoring system that monitors a rezero status of at least one weighing apparatus of interest and transmits electronic information about the rezero status of the monitored weighing apparatus;

placing an external system in communication with the local monitoring system, the external system including a remote server adapted to receive rezero data from the local monitoring system and to store at least some of the rezero data;

providing a web-based interface via which an interested party may register to receive from the remote server electronic notifications related to the rezero status of one or more weighing apparatus of interest to the interested party;

receiving, via the web-based interface, contact information from the interested party;

receiving, via the web-based interface, a selection of the types of notifications the interested party wishes to receive;

receiving, via the web-based interface, a selection of the form of notifications the interested party wishes to receive;

using programming associated with the remote server to predict a rezero fault by;

(1) plotting on a graph of deadload weight readings vs. time, a plurality of recorded rezero data deadload weight readings corresponding to a series of previous weighing apparatus rezero operations and received from the at least one weighing apparatus at times t₁- t_n,

(2) identifying the point in time of a next scheduled weighing apparatus rezero operation,

(3) identifying a predetermined weighing apparatus rezero threshold value in the form of a maximum deadload weight that may be associated with a given rezero operation,

(4) fitting a linear regression line to the plotted weight readings, and

(5) determining whether the linear regression line will cross a line representing the predetermined rezero threshold value prior to the identified next scheduled weighing apparatus rezero operation; and

if it is determined that the linear regression line will cross the line representing the predetermined rezero threshold value prior to the identified next scheduled weighing apparatus rezero operation, using the remote server to transmit an electronic notification to a remotely located interested party.

19. The computerized method of claim 18, wherein the contact information received from an interested party is selected from the group consisting of a phone number, an email address, a SMS address, a MMS address, and any combination thereof.

20. The computerized method of claim 18, further comprising a local interface at a weighing apparatus via which an interested party may register to receive from the remote server electronic notifications related to the rezero status of one or more weighing apparatus of interest to the interested party.

21. The computerized method of claim 18, wherein an interested party, once registered, is permitted to enter a list of other interested parties who are to receive notifications.