LXI C類儀器的設(shè)計(jì)與實(shí)現(xiàn)方法:：簡述了I XI總線技術(shù)產(chǎn)生的背景及LXI儀器的特點(diǎn)，并根據(jù)國際LXI協(xié)會(huì)制定的LXI標(biāo)準(zhǔn)(v1．o)分別對(duì)A、B、C三類儀器標(biāo)準(zhǔn)進(jìn)行了介紹，為了將LXI總線技術(shù)應(yīng)用在現(xiàn)有的測(cè)試平臺(tái)中，提出了一種將傳統(tǒng)儀器升級(jí)為符合C類標(biāo)準(zhǔn)的LXI儀器的方法，該方法以現(xiàn)有儀器為基礎(chǔ)，與帶有Web Server的基于單片機(jī)的嵌入式網(wǎng)絡(luò)接入模塊相結(jié)合，成功地將傳統(tǒng)儀器升級(jí)為符合C類標(biāo)準(zhǔn)的LXI儀器，在程控電源上進(jìn)行的實(shí)驗(yàn)驗(yàn)證表明，應(yīng)用該方法設(shè)計(jì)實(shí)現(xiàn)的LXI儀器模塊符合LXI C類儀器標(biāo)準(zhǔn)，且具有成本低、結(jié)構(gòu)簡單和通用性強(qiáng)等特點(diǎn)。
關(guān)鍵詞：LXI總線；單片機(jī)；嵌入式； 網(wǎng)絡(luò)

M ethod of Design and Realization 0f LXI Class C Instrument
Shen Yan，Lv J ieguang，Yang Libo，W ang Kairang (Beijing Institute of Radio Metrology~Measurements，Beijing 100854，China)
Abstract：The technical evolution of LXI bus technique and the characteristics of the LXI instrument are discussed．According to the I XI Standard v1．0 of LXI Consortium，the A，B，C，three classes LXI instruments are introduced respectively．To apply LXI bus technique to the existing test platform ，the method of traditional instrument upgraded as the LXI instrument that matches standard of LXI Class C is presented．The method takes existing instrument as the foundation，combining with the single-chip microcomputer that has W eb Server am bedded Ethernet module，realizing upgrading、The result of experiment on the program control power shows that by using this method，the design and realizing of LXI instrument match the LXI Class C instrument standard，and have the strong characteristics of low cost，simple
structure and general use．
Key words：LXI bus； single— chip microcom puter； embedded； Ethernet