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DSP as the core of the system with Ethernet interface hardware circuit and software design method is introduced. Introduce the working principle of the network controller RTL8019AS and the DSP hardware circuit design in detail. Achieve a simplified TCP/IP protocol stack software programming for the reception and transmission of packets in DSP. The system(More)
DMES (Discrete MES) is difficult to realize as process changes frequently, workshop environment is complicated, and data collection is difficult. RFID and 433 MHZ wireless communications have been used to set up the hardware platform for the design of DMES. With the object-oriented programming language, planning services procedure, communication procedure,(More)
Events are crammed with numerous basic elements in today's management and manufacturing system. Especially, for a large-scale system, there are thousands of independent messages (events) happening every second. How to integrate the information and how to deal with such massive events are faced by most of the system. Event monitoring and processing has been(More)
Fingerprint image segmentation is an important step in an automatic fingerprint identification system (AFIS). A successful segmentation can remove the background in the fingerprint image so as to reduce the performance time of the image enhancement and the number of false features [1]. The conventional methods segment fingerprints by using information of(More)
Under the software design background of MES system for discrete manufacturing, according to the weakness about visualization, database resources management and facts that database changes affect large changes in procedures of Oracle, SQL, Access and others, the program was designed based on the Universal Plug-assisted database design process to improve the(More)
Picture reranking is helpful for adjusting the presentation of content base picture seeks. In any case, reachable reranking estimations are compelled for two essential drivers: 1) the printed meta-data related with pictures is every now and again opposite with their real picture substance and 2) the uprooted visual highlights don't decisively(More)