Research On Component-Based Heterogeneous Embedded Configuration System

With the fast development of computer control technology and the wide application of embedded technology, manufactures home and abroad come up with their own products. A new upper-level control strategy configuration is always come with a new control system. System control strategy configuration software which is running in upper-level computer plays an important role in the whole system. There are many problems and defects in configuration software developed home and abroad at present. 1) the scalability of the traditional configuration software is not strong, and it also costs a lot of time to develop.2) Embedded system is developing rapidly, but the corresponding software lags behind more serious in particular the configuration software.3) Industrial market needs a mixed control system of DCS and PLC seamless integration which can achieve logic control and process control. Therefore, development of control strategy configuration software for embedded control system which based on component technology can provide concrete guide for the further development of configuration software in the line and play a leading role in self-research and self-development in our country. So it is very meaningful practically and theoretically.The dissertation is based on the whole design and development procedure. Based on the analysis and comparison of the status and problems of the embedded configuration system developed home and abroad, the train of thought, theorem and methods are used in design and implementation for the problem-solving and improvement for scheme of the system. The feature and creation in the system is introduced emphatically. The major works of this paper are summarized as follows:(1)The great significance of the subject is further demonstrated after the research of software component technology, the current status and problems existing in strategy configuration software for embedded control system home and abroad, research and development of PLC and DCS integration technology are analyzed and compared.(2)A common configuration component model is advanced to achieve the automatic generation system of common configuration algorithm components based on the development of the component idea .To enhance the efficiency of configuration development, configuration parameters are sorted and hided based on the empirical model.(3)The embedded configuration FBD system is designed and implemented according to the advantages and disadvantages of configuration FBD system at present. Automatic routing and manual routing are integrated in the FBD editor. The concept of "hardware abstraction layer based on intermediate code" is advanced and the scheme based on the concept is designed and implemented in FBD compiler. Stack data structure is stored FBD graphic element. A bottom-up approach is proposed to order the sequence of function blocks. Auto-generation control algorithm technology is advanced to translate the graphical interface to the underlying code automatically.(4)The heterogeneous embedded configuration system is designed and completed based on the ladder embedded configuration algorithms technology. The concept of "the ladder embedded configuration algorithms" is advanced and the scheme based on the concept is designed and implemented. The details of the micro-kernel real-time scheduler, process communication and memory management modules are described in this paper.(5) According to the above, this paper presents the system's overall design and implementation, and the experience shows that the software runs well, functions properly and has promising utilization prospect.