Development of practical system for "regular check-up system of slopes" using RTK-GPS

他的研究目标是基于福冈在1999 - 2000年科学研究资助基金（基础研究C）资助的短时间实时运动学（RTK-） GPS测量中对地面运动的高精度监测所取得的成果，开发实用的“边坡稳定性定期健康检查”系统。在这项研究中，我们试图获得观测数据，开发开发系统所需的技术、仪器和软件。(1)确定了实时测量数据从RTK-GPS接收机传输到PC机的程序，并对显示和编辑程序进行了规范，与以往的测量数据进行了比较。开发了一种新的RTK-GPS数据显示系统，该系统由一个轻便的PC机和一个轻便的无线显示器组成。该系统可以在640 × 480点的显示器上实时显示所获得的数据并对其进行评估。该系统每1秒显示一次RTK-GPS接收机天线在水平平面上的位置，以及获得的定位数据沿东西、南北和上下轴的直方图。该系统用于实时和现场评估RTK-GPS测量数据的精度、准确性和质量，对数据进行编辑，并与以往的测量数据进行对比，提取现场地面运动矢量。该软件现通过联合调查人员提供给RTK-GPS用户。(2)首席研究员将在科学研究资助-基础研究(C)(2)中开发的RTK-GPS测量用自动伺服控制三脚架的使用权交给关西TLO。关西TLO于2000年12月申请了自动三脚架专利，并将该专利（即将）独家执行权授予东京MARUTO株式会社。这家公司已开发出一种销售型产品，将于2004年上市。(3)对高知县的Nuta滑坡、德岛县的Zentoku滑坡、新泻县的Okimi滑坡进行了滑坡运动监测，并与以往的延伸仪、钻孔倾角仪、全站仪测量、静态GPS监测等观测数据进行了对比，均显示出较好的相关性。特别是在冲尾滑坡现场，观察到不同程度的滑坡运动。少

his study aims to develop practical system for "periodical health check of slope stability" based on the achievements by Fukuoka on the high-precision-monitoring of ground movement by Short-time Real-time Kinematic (RTK-) GPS survey funded by the Grant-in-Aid for Scientific Research (Fundamental Research C) from 1999 - 2000. In this study we have tried to obtain observation data, to develop techniques, instruments, and software necessary for development of the system.(1)Procedure to transfer in realtime survey data from RTK-GPS receivers to PC was decided the, and specification of the displaying and editing programs to compare them with previous survey data was examined. A new RTK-GPS data display system was developed consisting of a handy PC with a wireless handy display which is light enough to hold on a hand. This system can display obtained data and evaluate them in realtime on site in 640 x 480 dot display. This system shows the position of RTK-GPS receiver antenna on the horizont … More al plane at every 1-second as well as histogram of obtained location data along east-west, north-south, and up-down axes. This system helps for to evaluate the precision, accuracy, and quality of the RTK-GPS survey data in realtime and on-site, to edit the data, and to extract ground movement vector on site by comparing with previous survey data. This software is now provided to RTK-GPS users through the co-investigators.(2)the Head Investigator gave the right of the automatic servo-control tripod for RTK-GPS survey, which was developed in the Grant-in-Aid for Scientific Research - Fundamental Research (C)(2), to Kansai TLO. Kansai TLO has applied this automatic tripod for a patent in December 2000 and gave the right to execute exclusively this patent(-to-be) to MARUTO Co., Ltd., Tokyo. This company has developed sell model and it will be on sale in 2004.(3)Landslide movement monitoring was repeated in Nuta Landslide in Kochi Prefecture, Zentoku Landslide in Tokushima Pref., and Okimi Landslide, Niigata Pref. Obtained data were compared with other previous observation data of extensometers, borehole inclinometer, total station survey, and static GPS monitoring data, and it shows good correlation. Especially in Okimi Landslide site, differential landslide movement was observed. Less