| With the rapid development of hardware and software technology, computer technology in the field of industry control has taken great place, with persistent high reliability and high price. Distributed control system (DCS), with the characteristic of centralization of its management and the distribution of its functions, burthen and malfunction, is used widely in the process of modern industry, and become one of the most active branch.MS CIS (Marine Simulation & Control Interface System) is a set of distributed intelligent Input/Output interface control system developed for the modem marine engine simulator. It realizes the data conversion and transport of simulation system interface between computer and control panel or other hardware. It succeeds to the characteristic and strongpoint of DCS, and adopts distribution pattern, which composes of one upside host computer and some downside I/O interface crates. The upside host computer fasten on controlling each downside I/O interface crate on the communication chain, and downside I/O interface crates directly connect with control panel or other hardware devices and dispersedly control each input and output channels of the interface system. The downside I/O function cards in the interface crate support four types of I/O channel, and each function card works independently. If one I/O channel emerges malfunction, it will not impact normal work of other I/O channel.MSCIS interface system is provided with complete function, flexible configuration, many I/O interface dots, good real time, high dependability, high replantation ability and high ratio of capability to price. Besides, it can be used in the field of other system simulation projects and industry control project. The research on MSCIS intellectualization interface control system is an attempt to study independently distributed interface system. That not only improves the ability to develop modern marine engine simulator I/O interface system but also decreases the hardware cost of simulator system, what's more, it contributes to realize independent research on all the simulator system, and has great realistic meaning and economic meaning. The high-speed intelligent card and main control card of MSCIS interface system are trial work on the dregder ship simulator successfully, and it establishes the base for the further research on theMSCIS intellectualization interface control system.This paper is based on developing the high-speed intelligent card, main control card of MSCIS interface system and device driver of the communication card. The entire tasks are divided into hardware designing and software programming of the MSCIS interface system. The main process of the development on system is as follows:1. Firstly, apply Protel99 software to design the SCH chart of the high-speed intelligent communication card and the main control card, secondly, design PCB charts and send them to the factory.2. To debug on the hardware, eliminate circuitry errors, and test on every chip.3. To program assemble language control software of the communication card and the main control card, and debug on the SUPER ICE 16 simulator.4. To utilize the SUPER ICE 16 simulator to link card to debug the control programs of the communication card and the main control card online and to test on the RS-485 communication;5. To Embed the control program debugged successfully into EPROM, and debug the system on EPROM;6. To debug offline the communication card, the main control card, and RS-485 data communication;7. To design device driver program DLL of the communication card, and to program MSCIS intelligent I/O the testing desk software.This paper introduces hardware and software technology and design experience from the structure and principium of the intellectualization MSCIS interface control system. On the aspect of hardware, it refers to the hardware circuit design of the high-speed communication card and the main control card, anti-jamming technology, chip so...
|
PDF Full Text Request