SYSTEM FOR COLLECTING MULTI-POINT DATA

PROBLEM TO BE SOLVED: To collect meteorological data from each observatory over the country at a same time by means of radio communication in spite of a bad weather by permitting data collecting stations to transmit collected data to sub- integration stations and permitting each sub-station to transmit collected data to an integration station. SOLUTION: The data collecting stations of respective observatory groups 130a-130n, which receive an inquiry signal, modulate carrier wave with meteorological data such as rainfall or temp. or the like which are normally observed by using a transmitter/receiver as a modulating signal and return it to the sub-integration station 13a with an antenna ant0 as poling response. In parallel with it, the respective sub-integration stations 13a-13n which receive the inquiry signal normally collect meteorological data from the respective data collecting stations by using a radio transmitter/receiver, modulate carrier wave with the meteorological data as the modulating signal and return it to the integration station 12 as a poling response signal.