Apparatus and method for active and passive data gathering using stochastic model in control network

摘要

There is provided an apparatus and method for active and passive data gathering using a stochastic model in a control network. An active and passive synchronizer performs a first gathering operation in which a data request frame is transmitted via the control network and data on the local devices is gathered and a second gathering operation in which data on the local devices is gathered by reading a communication frame among the local devices, and determines a first gathering operation schedule for each data stored in a cache unit based on an expected delay time estimated using a stochastic model for the second gathering operation process when the first gathering operation is not performed on each data that is gathered through the first gathering operation and the second gathering operation and is stored in the cache unit and waiting is performed until the data is updated through the second gathering operation.