网络测控实验室的安全访问策略

目前网络测控实验室系统多采用Browser/Server这种开放式通信架构，这种架构用户使用方便，但随之带来系统安全运行隐患，特别是当硬件仪器同时被多个用户控制时会造成仪器误操作，甚至会损坏设备。利用排队论建立了用户安全访问的排队模型，给出了模型的运行参数，并利用Active Server Page技术和数据库技术实现了用户并发访问控制机制，保证同一设备在同一时刻只能被一个用户控制，且等待服务的用户可以实时了解仪器目前的运行和使用状态。

Safety visiting strategy in network measurement and control laboratory

Currently, the network measurement and control laboratory is generally built based on Browser/Server model. It is easy to use but brings safety problems, especially when the hardware instruments controlled by multi-users, this structure will lead to deadlock or work incorrectly at the same time. The simulation queue model was built utilizing queue theory, and the running parameters of model were given. The realization method based on Active Server Page and database technology was described, which ensures one instrument can only be controlled by one user, while waiting users can browse the instrument running and using status.