Research And Implementation Of Online Automatic Audit Platform For CAD Drawings In Indoor Distribution System

With the rapid growth of the number of 4G mobile communication users and terminals,weak areas and blind areas,insufficient network capacity,dropped calls and network congestion are prone to occur in indoor environments where voice and data services are intensive.The indoor distribution system can solve these problems comprehensively,because it can introduce the outdoor signal into the room and distribute it.Therefore,the indoor distribution system construction is more and more important,and the audit of design drawings is a very crucial part.Based on the secondary development of CAD,ActiveX and other technologies,this paper provides an on-line,automated and process-based audit platform for CAD drawings in indoor distribution system.It can ensure the rationality and practicability of the design drawings and meet the requirements of signal coverage effects.Meanwhile,it avoids the disadvantages of traditional manual audit methods,such as low efficiency and error-proneness,and significantly accelerates the construction of indoor distribution systems.This thesis firstly introduces the research background and related technologies,and then divides the functional requirements analysis into two parts:the program approval process of the audit platform and the automatic audit of the drawings.The program approval process can be divided into creating programs,drawing management,drawing review,submission submission and approval of the plan.The automatic drawing audit includes building information statistics,device analysis,signal coverage prediction,cost analysis and indoor scene analysis.According to the demand analysis,this thesis shows the overall architecture of the system,the function definition of each module,interface design and interaction flow.In the detailed design and implementation part,a class diagram of the core functions of the audit platform is given,and the key algorithms and processes are described.In the testing part,we design the test cases of program approval process and automatic audit function,and describe the testing process of key use cases.The paper concludes with a summary of all the work and points out the next goal.