安防系统弱点评估算法的可视化实现

对安全防范系统（SPS）而言，弱点评估是系统效能评估的重要组成部分。现有的弱点评估算法普遍使用的入侵序列图（ASD）模型，在准确性、可靠性和直观性上存在一定的缺陷。对现有的弱点评估算法进行改进。提出用二维地图替代入侵序列图进行系统建模；引入广义的启发式搜索算法，以满足动态效能评估的实时性要求；添加防护元件的灵敏度分析模块，使系统在进行定期维护与升级时能获得最高的成本-效益。提出的算法已经通过编程实现，并用得到的VVA-SPS（Visualized Effectiveness Assessment of Security and Protection Systems）程序针对不同防护对象进行了算法的有效性验证。

Visual implementation for vulnerability assessment algorithm of security and protection systems

For security and protection system, the vulnerability assessment is an important part of the system effective-ness assessment. Existing effectiveness assessment algorithms using the Adversary Sequence Diagram（ASD）model have deficiencies in accuracy, reliability, and visibility. Some improvements in effectiveness assessment algorithm are made in this paper. The use of a 2D map as an alternative approach to model a SPS is suggested. A heuristic generalized search algorithm is introduced in order to meet the real-time requirements of dynamic performance evaluation. The update sensi-tivity analysis module of protection components is developed to get the highest cost-effectiveness in the regular mainte-nance and upgrades of SPS. The proposed algorithm is implemented to a computer program：visualized effectiveness assessment of security and protection systems. The validation verification of the program is carried out in different facili-ties for different objects of protection.