摘要
【目的】为优化林区瞭望塔布局与建设时序,提高瞭望塔网络建设效率。【方法】以北京郊区某林场为实验点,针对瞭望塔网络建设的空间性、阶段性和动态性等特点,设计基于顶点法的最大监测面积模型(Max-MAM),利用Greedy算法求解近似最优布局方案;设计基于熵权法的动态多属性建设时序模型(DMACTSM),求解近似最优布局方案下的综合最优建设时序。【结果】顶点法共提取到38个备选点;用Max-MAM优选出最优布局方案P6={a6,a29,a36,a12,a26,a18},可使瞭望塔网络的监测覆盖面积最大,约71.47%;用DMACTSM模型获得最优建设时序为a29、a26、a12、a6、a36和a18,可使瞭望塔网络建设过程中综合效益最优。【结论】Max-MAM和DMACTSM能够调整建设时序,解决建设时序最优问题,结合地理信息系统(GIS)实现瞭望塔网络布局优化;调整后的建设时序在增长监测面积、交通、坡度、已有建筑情况等方面综合最优。
[Objective]With the optimization of tower layout and time sequence in the process of construction,this paper is aimed at the promotion of the construction efficiency of tower networks in forest regions.[Method]With one forest farm in the suburbs of Beijing chosen as the testing spot and features of watchtower network construction such as spatiality,periodicity and dynamicity taken into consideration,efforts were made to figure out a near-optimal layout design built employing Greedy algorithm on the basis of Maximum monitoring area model(Max-MAM)established with the vertex method.Meanwhile,with such a design,on the basis of DAMACSTM which was built employing the dynamic multi-attribute entropy weight method,the optimal time sequence of construction was figured out.[Result]38 optional points extracted adopting the vertex method,with the optimal layout achieved by Max-MAM,P6={a6,a29,a36,a12,a26,a18},the monitoring coverage of the watchtower network was maximized(about 71.47%)while with the optimal time sequence of construction achieved with DAMACSTM,a29>a26>a12>a6>a36>a18,the comprehensive benefits are maximized.[Conclusion]Two models of Max-MAM and DMACTSM proposed in this paper,can adjust and figure out the optimal time sequence of construction and when combined with GIS,are conducive to the achievement of the optimal layout of watchtower networks.And the optimal time sequence of construction helps maximize the comprehensive benefits in aspects like the increase in the monitoring area,the traffic,the slope,and existing structures.
作者
范续
武刚
陈飞翔
陈玥璐
FAN Xu;WU Gang;CHEN Feixiang;CHEN Yuelu(School of Information,Beijing Forestry University,Beijing 100083,China)
出处
《浙江农林大学学报》
CAS
CSCD
北大核心
2020年第5期986-991,共6页
Journal of Zhejiang A&F University
基金
中央高校基本科研业务费专项基金资助项目(TD2014-02)。
