Systems and Methods for Asynchronous Searching and Filtering of Data

• US 20130124613A1
• Filed: 10/16/2012
• Published: 05/16/2013
• Est. Priority Date: 11/11/2011
• Status: Active Grant

• Current Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Original Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Inventors: Plache, Kenneth S., Bronikowski, Joseph, Jasper, Taryl J., Kalan, Michael D., Reichard, Douglas J.
• Granted Patent: US 9,285,800 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: G05B 19/41835 characterised by programme execution
• CPC Class Codes: G05B 2219/31161 Java programcode or simular active agents, programs, applets
• CPC Class Codes: G05B 2219/31171 Each data object has corresponding identification for object manager, associative
• CPC Class Codes: G05B 2219/32128 Gui graphical user interface
• CPC Class Codes: G05B 2219/33148 CLS client server architecture, client consumes, server provides services
• CPC Class Codes: G05B 2219/34246 OOC object oriented control
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

An automation control and monitoring system includes a server configured to receive a subscription request from a client component. The subscription request provides one or more criteria to the server. The server is configured to provide a set of data, via a first notification, to the client component based upon the one or more criteria in the subscription request. The server is configured to provide, via additional notifications based on the subscription request, additional sets of data, modifications to the set of data, or both, when additional data or modifications corresponding to the one or more criteria are available.

Claims

1. An automation control and monitoring system, comprising:

a server configured to receive a subscription request from a client component, the subscription request providing one or more criteria to the server, wherein the server is configured to;

provide a set of data, via a first notification, to the client component based upon the one or more criteria in the subscription request; and

provide, via additional notifications based on the subscription request, additional sets of data, modifications to the set of data, or both, when additional data or modifications corresponding to the one or more criteria are available.

2. The automation control and monitoring system of claim 1, comprising the client component, wherein the client component is configured to provide a data filter in the subscription request.

3. The automation control and monitoring system of claim 1, wherein the server is configured to return the set of data having a specific set of properties to the client component, wherein the specific set of properties is provided in the subscription request.

4. The automation control and monitoring system of claim 1, wherein the server is configured to:

receive, via the subscription request, a limit designating a maximum amount of data to be returned in a notification;

limit the first notification to the designated maximum amount of data; and

provide the additional notifications with the additional sets of data that could not be sent in the first notification due to the limit, wherein each of the additional notifications do not exceed the maximum amount of data to be returned in a notification.

5. The automation control and monitoring system of claim 1, comprising:

another component configured to identify additional data corresponding to the one or more criteria, update data corresponding to the one or more criteria, delete data corresponding to the one or more criteria, or a combination thereof;

wherein the server is configured to provide additional notifications corresponding to the identified additional data, updated data, or deleted data to the client component.

6. The automation control and monitoring system of claim 1, wherein the server is configured to stop sending notifications to the client component upon receiving an unsubscribe request from the client component.

7. The automation control and monitoring system of claim 1, wherein the server is configured to provide an update of the set of data in an additional notification when the update of the set of data is not immediately available for the server to send.

8. The automation control and monitoring system of claim 1, wherein the server is configured to provide the first notification and the additional notifications asynchronously.

9. A method, comprising:

subscribing to a query, via a client component in an automation control and monitoring system, by providing one or more criteria in a subscription request to a server of the automation control and monitoring system;

receiving, from the server, a first notification comprising a first portion of data relating to the one or more criteria of the subscription request; and

receiving, from the server, one or more additional notifications comprising additional portions of data relating to the one or more search criteria of the subscription request.

10. The method of claim 9, wherein the first portion of data and the additional portions of data are limited in size by a maximum data return threshold set in the automation control and monitoring system.

11. The method of claim 10, comprising sending the maximum data return threshold in the subscription request.

12. The method of claim 10, comprising defining the maximum data return threshold in the server.

13. The method of claim 9, comprising receiving a modification notification, from the server, when another component identifies data relating to the one or more criteria, modifies data relating to the one or more criteria, or deletes data relating to the one or more criteria.

14. The method of claim 9, comprising:

unsubscribing to the query, via the client component, by providing an unsubscribe request to the server; and

ceasing to receive notifications relating to the one or more criteria based upon the unsubscribe request.

15. An automation control and monitoring system, comprising:

a server;

a graphical user interface of the automation control and monitoring system;

a view model configured to request and receive data relevant to the graphical user interface from the server; and

a data model comprising a model of objects that the server accesses, wherein the server is configured to access the requested data from the data model and provide the requested data to the view model via asynchronous notifications to the view model.

16. The automation control and monitoring system of claim 15, wherein the asynchronous notifications are limited in size by a maximum data return threshold set in the automation control and monitoring system, and the server is configured to provide portions of the requested data in multiple asynchronous notifications when an amount of the requested data is above the maximum data return threshold.

17. The automation control and monitoring system of claim 15, wherein the view model is configured to subscribe to a query by sending an asynchronous subscription request to the server, the subscription request comprising one or more criteria that identifies the query.

18. The automation control and monitoring system of claim 17, wherein the server is configured to:

detect an identification of data relating to the one or more criteria, a deletion of data relating to the one or more criteria, or a modification of data relating to the one or more criteria; and

provide an asynchronous modification notification of the identification, deletion, or modification to the view model.

19. The automation control and monitoring system of claim 18, wherein:

the view model is configured to send an unsubscribe request to the server when the data is no longer needed by the view model; and

the server is configured to cease sending asynchronous modification notifications to the view model when the server receives the unsubscribe request.

20. The automation control and monitoring system of claim 15, wherein the server is configured to:

detect a first portion of the requested data that is available for transmission;

detect a second portion of the requested data that is not available for transmission;

send a first asynchronous notification with the first portion to the view model; and

send a second asynchronous notification with the second portion to the view model when the second portion is available for transmission.

21. The automation control and monitoring system of claim 15, comprising a server proxy, wherein the server proxy comprises machine-readable code with instructions to:

connect the view model to the server; and

transform any asynchronous notifications received from the server such that the data may be interpreted by the view model.

22. The automation control and monitoring system of claim 15, comprising a server stub, wherein the server stub comprises machine-readable code with instructions to receive and transform a request sent from the view model to the server, such that the request may be interpreted by the server.

23. An automation control and monitoring system, comprising:

a client component configured to send a subscription request to a server, the subscription request providing one or more criteria to the server, wherein the client component is configured to;

receive a set of data, via a first notification, from the server based upon the one or more criteria in the subscription request; and

receive, via additional notifications, additional sets of data, modifications to the set of data, or both, when additional data or modifications corresponding to the one or more criteria in the subscription request are available.

24. The automation control and monitoring system of claim 23, wherein the client component is configured to provide, in the subscription request, at least one of a data filter, a specific set of properties to be returned by the server, or a maximum amount of data to be returned in a notification.

25. The automation control and monitoring system of claim 23, wherein the client component is configured to receive a modification notification, from the server, when another component identifies data relating to the one or more criteria, modifies data relating to the one or more criteria, or deletes data relating to the one or more criteria

26. The automation control and monitoring system of claim 23, wherein the client component is configured to:

send an unsubscribe request to the server; and

stop receiving additional notifications corresponding to the one or more criteria when the server receives the unsubscribe request.