Condition monitoring system and data analyzer

1 . A condition monitoring system that monitors a condition of a wind power generation facility, the condition monitoring system comprising:

a sensor attached to the wind power generation facility, the sensor including a vibration sensor detecting vibration of a main bearing of the wind power generation facility;

a data measurement device including a programmable logic controller that receives a detection signal of the sensor and obtains, according to a measurement condition provided, measurement data from the detection signal;

a data analyzer including a first central processing unit (CPU) that receives the measurement data from the data measurement device and performs an analysis process on the measurement data; and

a diagnosis device including a second CPU that performs a diagnosis process of diagnosing the condition of the wind power generation facility based on comparing an analysis result obtained through the analysis process to a prescribed threshold to identify a damage level of the main bearing of the wind power generation facility,

wherein the data analyzer adjusts the measurement condition based on a measurement efficiency such that a time required for the analysis process and the diagnosis process does not exceed a measurement interval of the measurement data in the data measurement device, the measurement efficiency indicating a relation between the measurement interval of the measurement data and the time required for the analysis process and the diagnosis process,

wherein the data analyzer calculates the measurement efficiency for each measurement interval and adjusts the measurement condition for each measurement interval based on the calculated measurement efficiency,

wherein the data analyzer sets the analysis condition when the adjusted measurement condition is determined to be outside of a prescribed adjustment range,

wherein the data analyzer outputs the adjusted measurement condition to the data measurement device, and

wherein the data measurement device obtains the measurement data according to the adjusted measurement condition.

2 . The condition monitoring system according to claim 1 , wherein the data analyzer sets the analysis condition based on the measurement efficiency and a result of the diagnosis process.

3 . The condition monitoring system according to claim 1 , wherein the sensor further includes at least one of a temperature sensor, a pressure sensor, a strain sensor, and a load sensor.

4 . A data analyzer that performs an analysis process on measurement data received from a data measurement device, the data measurement device configured to obtain, according to a measurement condition provided, the measurement data from a detection signal of a sensor attached to a facility, the data analyzer comprising:

a central processing unit (CPU) configured to:

perform the analysis process on the measurement data;

adjust the measurement condition based on a measurement efficiency such that a time required for the analysis process and a diagnosis process of diagnosing a condition of the facility does not exceed a measurement interval of the measurement data in the data measurement device, the measurement efficiency indicating a relation between the measurement interval of the measurement data and the time required for the analysis process and the diagnosis process;

sets the analysis condition when the adjusted measurement condition is determined to be outside of a prescribed adjustment range; and

outputs the adjusted measurement condition to the data measurement device to facilitate the data measurement device to obtain the measurement data according to the adjusted measurement condition,

wherein the CPU calculates the measurement efficiency for each measurement interval and adjusts the measurement condition for each measurement interval based on the calculated measurement efficiency.

5 . The data analyzer according to claim 4 , wherein the CPU sets the analysis condition based on the measurement efficiency and a result of the diagnosis process.

6 . The data analyzer according to claim 4 , wherein the sensor further includes at least one of a temperature sensor, a pressure sensor, a strain sensor, and a load sensor.