1Nicholas HMC. Bernard B C. David M H. Remote instrumental diag nosis on the interuet[J]. IEEE Intelligent System &Their Applica tion, 1998, 13(3): 171 - 179.
1National Instruments Corporation.Integrating the Internet into Your Measurement System- DataSocket Technical Overview [EB/OL].http://natinst.com/datasocket/,1998-10-01.