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The rapid development of urban planning and construction , led the underground pipe network construction and renovation projects on a large scale , municipal underground pipe network is also known as the second city. As in the past the underground pipe network construction irregularities and incomplete historical data retention and other factors , to the pipe network rehabilitation and reconstruction inconvenience , urban planning and construction so as to bring a lot of technical problems. For this article , research dedicated pipe network layout detection system, do the preliminary groundwork for the municipal building , the promotion of the city municipal building good role in promoting. This topic is mainly through the three-axis gyroscope and test system consisting of a laser range finder to achieve three-dimensional pipe network detection and automatic generation of three-dimensional pipe network to function graph . Using a laser rangefinder, to achieve pipe length, height, width, diameter and other parameters of the automatic detection , the use of three-axis gyroscope inside the pipe to achieve the swing angle , tilt angle information such as auto-detection function, through data collection cards will generate data back to the detection system data processing module, data processing , according to the data obtained to generate three-dimensional figure . Upon completion of this system software and hardware design, based on the overall structure , the main research data processing and image generation section . System is mainly on data collected using Matlab for data processing , through the rotation matrix , the matrix move , space vector is perpendicular to the formula , the use of space plane formula proposed based graphics pipeline network parameter algorithm will measure the success of the original data into the secondary development of the required parameters, and output to a text document format , completed the data processing work. Then, based on VBA, use the data obtained information on SolidWorks secondary development, through secondary development program automatically draw points , centerlines , establishing datum for round, stakeout and other steps , the resulting three-dimensional pipe network to map, combined with reality , simulation accurate simulation point , the program simulation to verify the accuracy of the algorithms and programs to achieve the desired functionality of this topic . Meanwhile, data acquisition modules are discussed, the method was verified by testing the correctness of successful data processing required to generate the data files , and the preliminary design of the interactive interface , expand the functions of the system foundation .
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