The monitoring scheme of stray current in subarea based on HS801 was given in the paper.The method of the secondary development of HS801 with DLLs was introduced.

• 文章给出了基于HS801的杂散电流分区监测方案，介绍了利用动态链接库对虚拟仪器HS801进行二次开发的方法。