CELL CONTROL DEVICE THAT CONTROLS MANUFACTURING CELL IN RESPONSE TO COMMAND FROM PRODUCTION MANAGEMENT DEVICE

• US 20170302687A1
• Filed: 04/17/2017
• Published: 10/19/2017
• Est. Priority Date: 04/18/2016
• Status: Active Grant

• Current Assignee: Fanuc Corporation
• Original Assignee: Fanuc Corporation
• Inventors: GOTO, Kazuya
• Granted Patent: US 10,454,951 B2
• Time in Patent Office: Days
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: H04L 43/0876 Network utilisation, e.g. volume of load or congestion level
• CPC Class Codes: H04L 63/1416 Event detection, e.g. attack signature detection
• CPC Class Codes: H04L 63/1425 Traffic logging, e.g. anomaly detection
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

A cell control device able to prevent unauthorized communication in which a third party makes an unauthorized access to the apparatus. The cell control device includes a communication section that communicates with a production management device or plural machines, a communication controller that executes communication by the communication section, and a communication determination section that monitors an actual communication traffic and compares the actual communication traffic with a planned communication traffic of a communication planned to be executed by the communication controller to determine whether the actual communication traffic is more than the planned communication traffic.

Claims

1. A cell control device configured to control a manufacturing cell including a plurality of machines in accordance with a command from a production management device, the cell control device comprising:

a communication section configured to communicate with the production management device or the plurality of machines;

a communication controller configured to carry out the communication by the communication section; and

a communication determination section configured to monitor actual communication traffic in the communication section, compare the actual communication traffic with planned communication traffic of the communication planned to be carried out by the communication controller, and determine whether the actual communication traffic is more than the planned communication traffic.

2. The cell control device according to claim 1, wherein the communication determination section compares the actual communication traffic with the planned communication traffic for each predetermined time period.

3. The cell control device according to claim 1, wherein the communication determination section determines in real time that the actual communication traffic is more than the planned communication traffic when the actual communication traffic is detected in a time period in which the communication controller does not carry out the planned communication.

4. The cell control device according to claim 1, further comprising a communication block section configured to block the communication by the communication section when the communication determination section determines that the actual communication traffic is more than the planned communication traffic.