The system, developed by NEC in collaboration with Chugoku Electric Power, is designed to analyze signs of malfunction at large-scale facilities, including factories and power plants, and to identify an unstable status before the facilities encounter a failure

As part of ensuring the system’s effectiveness, the companies are scheduled to begin adjusting the detection sensitivity and other factors for the system to be deployed at the Shimane plant.

NEC said the system scheduled to be installed at Shimane 2, during June 2014, utilises enormous amounts of plant data (big data) for detecting signs of facility malfunctions.

Around last three years, NEC and Chugoku have been conducting research, development and verification tests for this system.

In October 2012, Chugoku deployed the system in its technical training facilities at the Shimane nuclear power station on a trial basis, and conducted simulations of various malfunctions in order to detect their signs.

After the successful conclusion of these tests, the companies have decided to launch the system at Shimane Unit 2.

NEC says the system uses its proprietary invariant analysis technology and can perform the following functions:

Automatically detect relationships between different sensors based on the information of many sensors already installed. Correlate various items of measurement information, including vibration, pressure, temperature and acceleration to detect signs of malfunction with a high rate of accuracy.

Comprehensively handle large amounts of sensor information, analyse and define normal conditions and signal an alarm when any unusual sign is detected.

Automatically identify the range of impact and the causes of any unusual sign that is detected. This saves time and labour when compared to conventional analysis.