Control functionality of DAQ-Middleware

DAQ-Middleware is a software framework for a network-distributed data acquisition (DAQ) system that is based on the Robot Technology Middleware (RTM). The framework consists of a DAQ-Component, that is implemented as a data transfer module, a data gather module, a data record module, etc., and a DAQ-Operator, that is implemented as a control module of other components. The basic functionalities, that are necessary as a DAQ system, such as transferring data, starting and stopping the system, etc., are already prepared in the framework. But one of control functionalities, i.e., the functionality of changing parameter values on the DAQ-Components, wasn't provided yet. In order to implement the functionality, the framework has to have the communication method to transfer data from the DAQ-Operator to the DAQ-Component, and the new state to realize the functionality because it should be separated from a normal state to acquire data. Then we developed and added the new functionality in the DAQ-Middleware to transfer data from DAQ-Operator to DAQ-Components in the new state. The new DAQ-Middleware framework allows us to implement easily not only functionality of acquiring data but also that of controlling component modules.