According to the distributing characteristic of highway pivotal infrastructure,including super large highway bridge and long-span and extra-long highway tunnel etc,aimed at the traffic safety management,the concept of Dumbbell Road Network(DRN) is provided,and its boundary algorithm is especially discussed.

Partition algorithm for key-machine dispatch in job-shop;

As for the software design,three-stage algorithm was used,and a new instantaneous protection algorithm based on the three-dot slip window and the improved differential coefficient method was .

Finally put forward the electrical machinery numeral type integrated protection algorithm, hence using super low work loss DSP′s oneboard computer MSP430F149 to realize the monitoring that the elect.

A protection algorithm can be judged as a strong capability of anti-interference one if it can eliminate decaying DC components.

By using MATLAB simulation analysis and comparison were made on the several indicators such as filtration ability,computation time window length,error size and occasions of two sampling value algorithms,three sampling value algorithms and Fourier algorithms,which is of reference to the choice of protection algorithms in different occasions.

Against the protection problem of optical layer in WDM networks, two new protection algorithms are proposed.