| 摘要 |
<p>PURPOSE: To provide an inexpensive measuring device that is able to perform any measuring work at plural different places easily in a highly accurate manner, and also easily capable of handling it without any regulation from the viewpoint of application. CONSTITUTION: Respective GPS antennas 1a1 and 1a2 connected to an antenna switcher 4 in a first receiver is selected, setting two observation points Po1 and Po2 or their setup spots to each alteration spot, and the setup spot of a GPS antenna 1b connected to a second GPS receiver 2b in a second receiving unit is set to a reference point Pr. With an information processor 3a transmitting a changeover designating signal, designating the changeover of these GPS antennas 1a1 and 1a2, to the antenna switcher 4, a variation in each relative distance between the observation point Po1 and the reference point Pr or between the observation point Po2 and the reference point Pr is transferrably measured, and with this variable portion equivalent, a landslide surface moving quantity is calculate.</p> |
