Relay and data processing method

• US 8,984,180 B2
• Filed: 09/10/2012
• Issued: 03/17/2015
• Est. Priority Date: 09/09/2011
• Status: Active Grant

• Current Assignee: LSIS Co. Ltd. (LS Corporation)
• Original Assignee: LSIS Co. Ltd. (LS Corporation)
• Inventors: Jeon, Byung Joon
• Primary Examiner(s): Sun, Michael
• Application Number:
  US13/609,109
• Publication Number:
  US 20130067251A1
• Time in Patent Office: 918 Days
• Field of Search: None
• US Class Current: 710/33
• CPC Class Codes: H01H 47/002 Monitoring or fail-safe circuits
• CPC Class Codes: H02H 1/0061 concerning transmission of signals transmission of measured quantities or switching orders; sectionalised protection involving signal transmission between at least two stations H02H7/261; comparison of the voltage or current values at two spaced portions of a single system H02H3/28; transferring the output of a sensing member to another variable G01D5/00; electrical measuring arrangements using modulation of electromagnetic waves, e.g. light beams G01R15/24, G01R15/26
• CPC Class Codes: H02H 3/00 Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems H02H7/00; systems for change-over to standby supply H02J9/00 ; integrated protection for motors H02H7/0822
• CPC Class Codes: H02H 7/08 for dynamo-electric motors
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y04S 20/221 General power management systems

Abstract

A relay and a data processing method are provided. The relay includes: a detection unit for classifying and detecting event oriented monitoring data and non-event oriented monitoring data from monitoring data; a storage unit for storing the detected monitoring data; a communication unit for receiving a request signal of the monitoring data from a monitoring device and transmitting corresponding monitoring data in response to a transmission request signal of the monitoring data; and a control unit for extracting event oriented monitoring data from the monitoring data and performing a control to transmit the monitoring data requested from the monitoring device.

Claims

1. A relay comprising:

a detector that includes a contact point input unit and a contact point output unit, the detector configured to classify received monitoring data into event oriented monitoring data and non-event oriented monitoring data, to detect the event oriented monitoring data and to detect an event when a signal is transmitted from the contact point input unit and contact point output unit, the event oriented monitoring data associated with a change of a monitoring value of the relay and the non-event oriented monitoring data associated with data generated periodically for predicting a change of the monitoring value;

a memory configured to store information;

a transceiver configured to receive a request for monitoring data from a monitoring device and to transmit at least part of the monitoring data according to the request; and

a controller configured to;

detect setting value data from the received monitoring data;

control the memory to store the detected event oriented monitoring data and the detected setting value data;

confirm a communication state with respect to the monitoring device;

assign an index to one point of a point list of monitoring data;

store monitoring data based on the detected event; and

control the transceiver to transmit a corresponding point when the request is received.

2. The relay according to claim 1, wherein the controller is further configured to:

determine a type of the monitoring data requested by the received request;

extract data corresponding to the determined type from the memory; and

transmit the extracted data.

3. The relay according to claim 1, wherein the controller is further configured to store the detected setting value data and the detected event oriented monitoring data in a corresponding point in a point list defined by Distributed Network Protocol (DNP).

4. The relay according to claim 1, wherein:

the request requests at least the event oriented monitoring data or monitoring data of a specific index; and

the controller is further configured to check the request and transmit corresponding monitoring data to the monitoring device.

5. A method of processing monitoring data in a relay, the method comprising:

classifying event oriented monitoring data and non-event oriented monitoring data from received monitoring data;

detecting the event oriented monitoring data first;

storing the detected event oriented monitoring data in a corresponding point of a point list defined when the event oriented monitoring data is detected;

receiving a request from a monitoring device for monitoring data; and

transmitting a point corresponding to the requested monitoring data,

wherein the event oriented monitoring data is associated with a change of a monitoring value of the relay and the non-event oriented monitoring data is associated with data generated periodically for predicting a change of the monitoring value, and

wherein the event oriented monitoring data comprises data associated with a change of a state of an input contact point of the relay or an output contact point of the relay.

6. The method according to claim 5, further comprising storing detected setting value data and the detected event oriented monitoring data in the corresponding point of the point list that is defined by Distributed Network Protocol (DNP).

7. The method according to claim 5, further comprising transmitting monitoring data in response to the received request, wherein the request requests at least the event oriented monitoring data or monitoring data of a specific index.

8. The method according to claim 5, further comprising:

determining a type of the monitoring data requested by the received request; and

transmitting corresponding monitoring data to the monitoring device according to the determined type.