The Non-Contact Landslides Monitoring System for Long-Distance

After Taiwan\´s 88 floods, landslide monitoring system is getting more important. A novel non-contact landslide monitoring system for long distance is proposed in this paper, using a single image to achieve monitoring, measuring displacement and direction. The method of landslide monitoring system is not measuring land appearance displacement, so do not compare the before and after image to calculate the landslide displacement. And this system does not need high-performance computer and DSP system, it has some advantages include: simple structure, high processing speed, low cost and low power consumption. This research is coming from our former research IBDMS (Image-Based Distance Measurement System), using a visible laser projector projection for a long distance. Set a "coordinates scale board" in analyze zone, it will generate a laser spot on "coordinates scale board". The CCD camera is setting behind the "coordinates scale board" to capture the image, to calculated landslide displacement and direction in 50-200 meters away by using some simple formulas.