A Research On Laser And CCD Technology Application Of Slope Remote Monitoring

The purpose of the slope monitoring is to find out the stability of the slope on time,and to reduce the possibility of landslides and a series of serious geological disasters caused by it,which has important significance for people's lives and property as well as the smooth development of the national economy.Currently,there are many monitoring techniques and methods at home and abroad.From the traditional Total Station,inclinometer tube,pressure gauge,rain gauges and displacement meter,to new type of GPS,TDR,and laser rangefinder,they all have been widely applied to the actual project monitoring.What's more,some monitoring systems work in the form of a variety of technical methods.Although traditional methods are not good at automation and digitization,they are better in stability since they have been applied for a long time and a lot of working experience and techniques have been accumulated.By contrast,new types of monitoring instruments and techniques have their advantages in timeliness.Therefore,to explore a new precise and low-cost monitoring technology that can be used fixedly for a long term has become urgent in slope monitoring projects.For this purpose,this paper includes the following contents:1.,The principle and composition of laser rangefinder are analyzed and studied here with its measurement accuracy and the level of error according to the laboratory testing.On this basis,a set of laser ranging system is established and applied to the slope of K101 Zhuyong Expressway.According to the contrast analysis of monitoring statistics between laser rangefinder and the Total Station,the former's monitoring effect and future can be assured.2,To explore the potentiality of the CCD(Charge Coupled Device) Micro-deformation technique in slope monitoring,this paper analyses its principle as well as its performance characteristics,and at the same time,based on the indoor experiment,the main factors which would influence the stability of monitoring effects are analyzed here.The CCD(Charge Coupled Device) Micro-deformation technique is set off by the Shenze landslide of Zhuyong expressway,and it has been proved that this system is applicable in for long-distance and real-time monitoring in slope engineering after contrasting its monitoring statistics with those of Total Station and GPS.3,Combining with the remote data collection and the advantage of wireless networks,to design and develop remote real-time dynamic monitoring data transmission for slope monitoring based on the wireless network is to provide a viable technology platform to achieve the dynamic transmission of remote monitoring data and the instant sending.For laser ranging system and the CCD micro-deformation monitoring system,different nodes and hardware configuration are carried out.A viable technology platform is provided to achieve the dynamic transmission of remote monitoring data and the instant sending of the AT control instructions,and a two-way dynamic interaction based on wireless network for remote monitoring and control apparatus.At the same time,a set of remote control software compose of laser ranging system and the CCD micro-deformation monitoring system is developed to greatly promote the application of wireless monitoring system.