APPARATUS AND METHOD FOR DATA ACQUISITION

• US 20140344445A1
• Filed: 04/08/2014
• Published: 11/20/2014
• Est. Priority Date: 05/14/2013
• Status: Active Grant

• Current Assignee: LSIS Co. Ltd. (LS Corporation)
• Original Assignee: LSIS Co. Ltd. (LS Corporation)
• Inventors: LEE, YONG IK
• Granted Patent: US 9,571,369 B2
• Time in Patent Office: Days
• US Class Current: 709/224
• CPC Class Codes: G06F 3/0614 Improving the reliability of storage systems
• CPC Class Codes: G06F 3/0649 Lifecycle management
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06Q 50/04 Manufacturing
• CPC Class Codes: H04L 43/0876 Network utilisation, e.g. volume of load or congestion level
• CPC Class Codes: Y02P 90/30 Computing systems specially adapted for manufacturing

Abstract

A data acquisition apparatus is provided. The data acquisition apparatus includes a local data storage unit; a data acquisition unit acquiring data; and a control unit storing data acquired by the data acquisition unit in the local data storage unit, wherein when stored data exceeds a predetermined capacity, the control unit transmits data to a history server, and when it is confirmed by the history server that data transmission is successful, the control unit deletes corresponding data from the local data storage unit.

Claims

1. A data acquisition apparatus linked to a history server for the monitoring and control of an industrial facility, the data acquisition apparatus comprising:

a local data storage unit;

a data acquisition unit acquiring data; and

a control unit storing data acquired by the data acquisition unit in the local data storage unit, wherein when stored data exceeds a predetermined capacity, the control unit transmits data to a history server, and when it is confirmed by the history server that data transmission is successful, the control unit deletes corresponding data from the local data storage unit.

2. The data acquisition apparatus according to claim 1, wherein when it is not confirmed by the history server that data transmission is successful, the control unit maintains corresponding data in the data acquisition unit and attempts to re-transmit data to the history server.

3. The data acquisition apparatus according to claim 1, wherein the control unit transmits, to the history server, data acquired by the data acquisition unit and stored in the local storage unit, when a predetermined data acquisition time is exceeded.

4. The data acquisition apparatus according to claim 1, wherein the control unit determines whether communication with the history server is in a normal state, and attempts to transmit data to the history server only if positive.

5. A data acquisition method of a data acquisition apparatus linked to a history server for the monitoring and control of an industrial facility, the data acquisition method comprising:

acquiring data by a data acquisition unit; and

storing, by a control unit, the acquired data in a local data storage unit, transmitting, by the control unit, data to a history server when stored data exceeds a predetermined capacity, and deleting, by the control unit, corresponding data from the local data storage unit when it is confirmed by the history server that data transmission is successful.

6. The data acquisition method according to claim 5, further comprising:

maintaining, by the control unit, corresponding data in the data acquisition unit when it is not confirmed by the history server that data transmission is successful; and

attempting, by the control unit, to re-transmit data to the history server.

7. The data acquisition method according to claim 5, further comprising transmitting, by the control unit to the history server, data acquired by the data acquisition unit and stored in the local storage unit, when a predetermined data acquisition time is exceeded.

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

determining, by the control unit, whether communication with the history server is in a normal state; and

attempting, by the control unit, to transmit data to the history server only if positive.