針對(duì)紡織生產(chǎn)過(guò)程中清紗機(jī)的工作特點(diǎn)，提出了一種基于CAN總線技術(shù)的控制系統(tǒng)設(shè)計(jì)方法，分析了系統(tǒng)的工作原理、網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)及其硬件構(gòu)成，詳細(xì)闡述了CAN總線的網(wǎng)絡(luò)接口方法和系統(tǒng)通信協(xié)議，討論了控制軟件的設(shè)計(jì)，給出了CAN網(wǎng)絡(luò)的主要通信程序，由于這種系統(tǒng)的主、從站之間采用CAN網(wǎng)絡(luò)通信，實(shí)現(xiàn)了對(duì)清紗工程的智能控制，系統(tǒng)具有運(yùn)行可靠、性能價(jià)格比高的特點(diǎn)，實(shí)踐證明這是一種先進(jìn)的控制技術(shù)，具有較大的推廣意義。
關(guān)鍵詞：CAN總線?? 清紗機(jī)?? 智能控制?? 系統(tǒng)通信? 軟件設(shè)計(jì)
The Design of Voile Cleaning Machine Control System Based on CAN Fieldbus
LIU Mei-jun
Xiamen University of Technology (Xiamen? 361024)
Abstract: For the characteristics of voile cleaning machine in textile producing, a new control system based on CAN fieldbus is presented in this paper, The principle of the system is introduced, The interface of the network and the communication protocol of the system are discussed in detail, The design of control software is also analyzed, the main program of communication is given. For CAN network communication of master and slave station,the system works reliably, and the voile cleaning is controlled intelligently. It is an advanced control technology. which is verified in? practice .
Keywords: CAN Fieldbus? Voile Cleaning Machine?? Intelligent Control? System Communication? Software? Design
?? 在紡織生產(chǎn)過(guò)程中，由于紗線存在粗細(xì)不均勻的疵點(diǎn)，影響面料的質(zhì)量。清除由于絲紙不良而引起的疵點(diǎn)，提高紡織質(zhì)量，清紗處理是一個(gè)至關(guān)重要的工序。清紗工程系統(tǒng)由多臺(tái)紗機(jī)控制器構(gòu)成，每一臺(tái)控制器可對(duì)8軸同一類型的紗線進(jìn)行清紗處理。控制器控制紗線切斷裝置和一個(gè)打結(jié)接續(xù)器（簡(jiǎn)稱打結(jié)器）。利用電容式傳感器檢測(cè)紗線的橫截面積，經(jīng)濾波放大后，依照給定的設(shè)定值，進(jìn)行判斷分析，鑒別紗線是否含有疵點(diǎn)。如果有，分辨其為粗疵點(diǎn)、細(xì)疵點(diǎn)、短粗疵點(diǎn)3種類型。檢測(cè)到疵點(diǎn)，由控制器發(fā)出切斷信號(hào)，并由打結(jié)器把紗線接續(xù)，繼續(xù)工作，系統(tǒng)控制原理如圖1所示。