System, method and program for detecting anomalous events in a utility network

• US 8,966,069 B2
• Filed: 04/15/2013
• Issued: 02/24/2015
• Est. Priority Date: 08/06/2010
• Status: Active Grant

• Current Assignee: Itron Networked Solutions, Inc. (Itron, Inc.)
• Original Assignee: Silver Spring Networks, Inc. (Itron, Inc.)
• Inventors: Vaswani, Raj, Van Greunen, Jana, Dubey, Aditi, Shah, Kunal Pankaj
• Primary Examiner(s): COULTER, KENNETH R
• Application Number:
  US13/862,985
• Publication Number:
  US 20130229947A1
• Time in Patent Office: 680 Days
• Field of Search: 709/224, 709/223, 714/43, 714/44, 714/25, 702/51, 702 57- 59, 702 60- 62, 702/64, 702/65
• US Class Current: 709/224
• CPC Class Codes: G01D 2204/22 Arrangements for detecting or reporting faults, outages or leaks
• CPC Class Codes: G01D 4/004 Remote reading of utility meters to a fixed location
• CPC Class Codes: H04L 43/0817 by checking functioning
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/30 Smart metering, e.g. specially adapted for remote reading

Abstract

A communication device detects whether anomalous events occur with respect to at least one node in a utility network. The communication device has recorded therein threshold operating information and situational operating information. The threshold operating information includes data indicative of configured acceptable operating parameters of nodes in the network based on respective locational information of the nodes. The situational information includes data indicative of configured operation data expected to be received from nodes in the network during a predetermined time period, based on a condition and/or event occurring during the time period. The communication device receives operation data from nodes in the network, and determines whether the operation data from a node constitutes an anomalous event based on a comparison of the received operation data with (i) the threshold operating information defined for the node and (ii) the situational information. The communication device outputs notification of any determined anomalous event.

Claims

1. A utility network communication device configured to monitor operating events occurring in connection with at least one node in a utility network, the communication device comprising:

a memory unit having threshold operating information and situational information defined and recorded therein, the threshold operating information including data indicative of configured acceptable operating parameters of nodes in the utility network based on respective locational information of each of the nodes in the utility network, the locational information of each one of the nodes respectively including unique information about that node, relative to each other one of the nodes in the utility network, such that unique threshold operating information is respectively defined for each node in the utility network based on the unique locational information respectively defined for that node, and the situational information including data indicative of configured operation data expected to be received from nodes in the utility network during a predetermined time period based on at least one of a condition and an event that is occurring during the predetermined time period;

a communication unit configured to receive operation data from nodes in the utility network;

a control unit configured to compare the operation data received from a node in the utility network with (i) the threshold operating information defined for the node from which the operation data was received and (ii) the situational information, and to record the received operation data in association with the situational information in the memory unit based on the comparison of the received operation data with (i) the threshold operating information defined for the node and (ii) the situational information.

2. The communication device according to claim 1, wherein the control unit is configured to update at least one of the threshold operating information defined for the node and the situational information recorded in the memory unit, based on the comparison of the received operation data with (i) the threshold operating information defined for the node and (ii) the situational information, when at least one of a) the received operation data deviates a predetermined amount from (i) the threshold operating information defined for the node or (ii) the situational information, and b) operating conditions in the utility network have changed.

3. The communication device according to claim 1, wherein the threshold operating information defined for a node in the utility network includes information defining at least one of:

a maximum threshold value of consumption of a commodity in a predetermined time period;

historical operating patterns of the node for which the threshold operating information is defined;

a connection state of the node to a distribution network;

load devices serviceable at the node;

an excessive number of remote connect/disconnects for the node in the utility network;

an excessive number of remote connect/disconnects for a plurality of nodes in a predetermined geographical area in which the node for which the threshold operating information is defined, is located;

an order of requested commands from other nodes in the utility network;

a predetermined order of requested commands receivable from the node with respect to a current operational state of the node;

security credentials of the node for communicating with other nodes in the utility network;

a maximum number of communications to be received by the node from other nodes in the utility network in a predetermined time period;

geographical coordinate information of the node;

a number of other nodes located in a predetermined geographical area in which the node for which the threshold operating information is defined, is located;

a number of other nodes in the utility network being serviced by a common access point as the node for which the threshold operating information is defined;

a number of other nodes in the utility network being serviced by a common distribution device of a distribution network as the node for which the threshold operating information is defined;

operational parameters of a distribution device of a distribution network arranged in a distribution automation system;

a connection/disconnection protocol of a predetermined number of remote terminal units in a predetermined geographic region; and

acceptable operational parameters of a load device serviceable at the node.

4. The communication device according to claim 1, wherein the locational information of a node includes at least one of:

geographic information about a premises at which the node is located;

connection information indicating whether the node is currently connected to a distribution network to receive distribution of a commodity from the distribution network;

residential usage information of the premises at which the node is located;

attribute information of the premises at which the node is located;

premises comparison information indicating a comparative size of the premises at which the node is located relative to other premises at which other nodes in the utility network are located;

load usage information indicating at least one device serviceable at the node;

functional information indicating a functional use of the premises at which the node is located;

periodic usage patterns indicating a historical consumption of a commodity during a predetermined time period;

financial information indicating a current account status with a distribution network to which the node is connected to receive distribution of a commodity distributed by the distribution network; and

construction information indicating at least one of a construction date and a repair date of the premises at which the node is located.

5. The communication device according to claim 1, wherein the situational information defines operation data expected to be received during the predetermined time period based on at least one of an event-based, operational-based, seasonal-based and weather-based condition occurring at the predetermined time period.

6. The communication device according to claim 5, wherein the situational information includes an adjustment value for operational parameters defined in the threshold operating information for a node based on the at least one of the event-based, operational-based, seasonal-based and weather-based condition occurring at the predetermined time period.

7. The communication device according to claim 1, wherein the at least one node is a utility network interface device associated with a utility meter.

8. The communication device according to claim 1, wherein the control unit is configured to:

compare the operation data received from a node with the threshold operating information defined for the node from which the operation data was received;

determine whether the received operation data represents an acceptable operating condition based on the comparison of the received operation data with the threshold operating information;

compare the received operation data with the situational information, if the control unit determines that the received operation data represents an acceptable operating condition based on the comparison of the received operation data with the threshold operating information;

determine whether the received operation data represents operation data that is expected to be received based on the comparison of the received operation data with the situational information;

determine that the received operation data represents an anomalous event, if the control unit determines that the received operation data does not represent expected operation data based on the comparison of the received operation data with the threshold operating information;

determine whether acceptable operating parameters included in the threshold operating information defined for the node are altered by the situational information, if the control unit determines that the received operation data does not represent an acceptable operating condition based on the comparison of the received operation data with the threshold operating information;

determine that the received operation data represents an anomalous event, if the control unit determines that the acceptable operating parameters included in the threshold operating information defined for the node are not altered by the situational information;

compare the received operation data with the situational information, if the control unit determines that the acceptable operating parameters included in the threshold operating information defined for the node are altered by the situational information;

determine whether the received operation data represents operation data that is expected to be received based on the comparison of the received operation data with the situational information, if the control unit determines that the acceptable operating parameters included in the threshold operating information defined for the node are altered by the situational information; and

determine that the received operation data represents an anomalous event, if the control unit determines that the received operation data does not represent expected operation data based on the comparison of the received operation data with the threshold operating information, and if the control unit determines that the acceptable operating parameters included in the threshold operating information defined for the node are altered by the situational information.

9. The communication device according to claim 8, wherein the control unit is configured to wait for new operation data to be received if the control unit does not determine that the compared operation data represents an anomalous event.

10. The communication device according to claim 1, wherein the control unit is configured to:

compare the received operation data with the situational information;

determine whether the received operation data represents operation data that is expected to be received based on the comparison of the received operation data with the situational information;

compare the received operation data with the threshold operating information defined for the node, if the control unit determines that the received operation data represents expected operation data based on the comparison of the received operation data with the situational information;

determine whether the received operation data represents an acceptable operating parameter based on the comparison of the received operation data with the threshold operating information;

determine that the received operation data represents an anomalous event, if the control unit does not determine that the received operation data represents an acceptable operating parameter based on the comparison of the received operation data with the threshold operating information; and

determine that the received operation data represents an anomalous event, if the control unit determines that the received operation data does not represent expected operation data based on the comparison of the received operation data with the threshold operating information.

11. The communication device according to claim 10, wherein the control unit is configured to wait for new operation data to be received if the control unit does not determine that the compared operation data represents an anomalous event.

12. The communication device according to claim 1, wherein the control unit is configured to:

compare the received operation data with the threshold operation defined for the node;

compare the received operation data with the situational information;

determine whether the received operation data represents an acceptable operating parameter based on the comparison of the received operation data with the threshold operating information;

determine whether the received operation data represents operation data that is expected to be received based on the comparison of the received operation data with the situational information; and

determine that the received operation data represents an anomalous event, if the control unit determines that at least one of (i) the received operation data does not represent an acceptable operating parameter based on the comparison of the received operation data with the threshold operating information, and (ii) the received operation data does not represent expected operation data based on the comparison of the received operation data with the situational information.

13. The communication device according to claim 12, wherein the control unit is configured to wait for new operation data to be received if the control unit does not determine that the compared operation data represents an anomalous event.

14. The communication device according to claim 1, wherein the notification unit is configured to output the notification of the anomalous event at the time the control unit determines that the anomalous event has occurred.

15. The communication device according to claim 1, wherein the communication device includes a user interface configured to receive a modification of at least one of the threshold operating information and the situational information recorded in the memory unit.

16. The communication device according to claim 1, wherein the at least one node is selected from the group consisting of:

a utility network interface device associated with a meter in the utility network, an access point in the utility network, a remote terminal unit equipped with a utility network interface device, a distribution device of a distribution network, and a terminal of a distribution automation system equipped with a utility network interface device.

17. A method of operating a utility network communication device to monitor operating events occurring in connection with at least one node in a utility network, the method comprising:

defining, in the communication device, threshold operating information for nodes in the utility network, the threshold operating information including data indicative of configured acceptable operating parameters of each of the nodes in the utility network based on respective locational information of the nodes in the utility network, the locational information of each one of the nodes respectively including unique information about that node, relative to each other one of the nodes in the utility network, such that unique threshold operating information is respectively defined for each node in the utility network based on the unique locational information respectively defined for that node;

defining, in the communication device, situational information for the nodes in the utility network, the situational information including data indicative of configured operation data expected to be received from nodes in the utility network during a predetermined time period, based on at least one of a condition and an event that is occurring during the predetermined time period;

recording the defined threshold operating information and situational information in a memory unit of the communication device;

receiving operation data from at least one node in the utility network;

comparing, in a processing unit of the communication device, the received operation data with (i) the threshold operating information and (ii) the situational information which are respectively defined for the at least one node from which the operating data was received; and

recording the operation data received from the at least node in association with the recorded situational information in the memory unit of the communication device, based on the comparison of the received operation data with (i) the threshold operating information defined for the at least one node and (ii) the situational information.

18. The method according to claim 17, comprising:

updating, in the processing unit of the communication device, at least one of the threshold operating information defined for the at least one node and the situational information recorded in the memory unit, based on the comparison of the received operation data with (i) the threshold operating information defined for the node and (ii) the situational information, when at least one of a) the received operation data deviates a predetermined amount from (i) the threshold operating information defined for the at least one node or (ii) the situational information, and b) operating conditions in the utility network have changed.

19. A non-transitory computer-readable recording medium having a computer program recorded thereon that causes a control unit of a utility network communication device communicatively connected to the computer-readable recording medium to monitor operating events occurring in connection with at least one node in a utility network, the program causing the control unit of the communication device to execute operations comprising:

defining threshold operating information for nodes in the utility network, the threshold operating information including data indicative of configured acceptable operating parameters of each of the nodes in the utility network based on respective locational information of the nodes in the utility network, the locational information of each one of the nodes respectively including unique information about that node, relative to each other one of the nodes in the utility network, such that unique threshold operating information is respectively defined for each node in the utility network based on the unique locational information respectively defined for that node;

defining situational information for the nodes in the utility network, the situational information including data indicative of configured operation data expected to be received from nodes in the utility network during a predetermined time period, based on at least one of a condition and an event that is occurring during the predetermined time period;

recording the defined threshold operating information and situational information in a memory unit of the communication device;

receiving operation data from at least one node in the utility network;

comparing the received operation data with (i) the threshold operating information and (ii) the situational information which are respectively defined for the at least one node from which the operating data was received; and

recording the operation data received from the at least node in association with the recorded situational information in the memory unit of the communication device, based on the comparison of the received operation data with (i) the threshold operating information and (ii) the situational information.

20. The non-transitory computer-readable recording medium according to claim 19, wherein the program causes the control unit of the communication device to execute an operation comprising:

updating the at least one of the threshold operating information defined for the at least one node and the situational information recorded in the memory unit, based on the comparison of the received operation data with (i) the threshold operating information defined for the node and (ii) the situational information, when at least one of a) the received operation data deviates a predetermined amount from (i) the threshold operating information defined for the at least one node or (ii) the situational information, and b) operating conditions in the utility network have changed.