Research And Development On Cigarette Weight Control System Based On Windows Platform

Protos 70 series cigarettes making machines produced by Hauni Company in Germany are widely applied by domestic tobacco companies, of which SRM cigarette weight control system plays the vital role to the product quality. This paper introduces the research and development of SRM system based on Windows platform.At last, Output pulses of the SRM system and the Protos unit's other coherent signals are sent into IPC (Industrial Personal Computer) through ordinary industrial board after been recuperated. System control software carries on real-time highly effective data collection, and PID weight control algorithm produces control signals used to actuate control mechanism movement after analyzing these data, thereby implements the manipulation of cigarette weight. As the operating system of IPC is Windows and the data processing partial timeliness requirement is highly demanding, how to achieve the highly demanding hardware board interrupt handling under the Windows platform and the communication between network application part and the hardware interrupt handling routine is key research content of this article.This text introduced the work patterns and register structure of 80386 processors in detail at first, latterly expounded especially the hardware interrupt handling of Windows 98 with the course to the kernel of Windows 98; then recommended the framework of realization of highly demanding hardware board interrupt handling by revising IDT to intercept interrupt handling at hardware layer, subsequently introduced the application and development of VxD technology to achieve interrupt handling overall all situations under the Windows 98 platform; finally introduced the B/S pattern network application development part of this topic, specifically introduced the JSP technology system, elaborated the communication between network application part and the hardware interrupt handling routine combined with the JNI technology, and provided partial important program and corresponding commentary.Summarily this thesis studied and realized the highly demanding hardware board interrupts handling and the communication between network application part and the hardware interrupt handling routine under the Windows 98 platform. Hardware portion of this system adopts the general platform composed of ordinary industrial board and IPC. System software architecture is also easy to expand and transplant. All these can be used in these application situations that need simultaneously to attain high timeliness and expansion easily. This article is of the very great economic value and research significance.