Real time update system reflecting the topography change by disaster

摘要

PURPOSE: A real-time update system of a digital map which is subject to topographic change by disaster and contamination is provided to apply topographic change due to disaster in case of digital map renewal. CONSTITUTION: A ground image collector(100) comprises a GPS receiver(110), a signal generator(120), and a camera(130). The GPS receiver confirms the GPS information of current position. The signal generator transmits identification signals of a fixed frequency band. The camera photographs the ground and creates aviation photographing images. A standard point display device(200,200',200") comprises a laser(210), a signal sensor(220), and a light emission device. The laser is installed on the upper side of a case and emits laser light by supplying electricity. The signal sensor receives identification signals and controls the operation of a laser. The light emission device emits the standard laser light to a light accepting panel.