Device for determining operational status of sensor and method thereof

A device for determining an operational status of a sensor, comprising:

• at least one processor, and
• at least one memory coupled to the at least one processor, wherein the at least one memory is configured to provide the at least one processor with instructions which, when executed, causes the at least one processor to:
• determine initial values of parameters of a Bayesian model and a degree of a polynomial regression model based on historical data of a target sensor and historical data of a reference sensor;
• infer a posterior distribution of a regression coefficient and an error term of a regression curve representing a correlation between the historical data of the target sensor and the historical data of the reference sensor using the polynomial regression model and the Bayesian model;
• set a credible interval based on the posterior distribution of the regression coefficient and the error term of the regression curve, and set control lines of data of the target sensor using the credible interval;
• determine an accuracy of the target sensor based on current data of the target sensor and the control lines;
• and
• control an operational status of the target sensor based on the accuracy.