| 摘要 |
PURPOSE:To grasp the state of entire system simultaneously by allowing each slave station to acquire the observation data entirely at the same time by a simultaneous signal from a master station. CONSTITUTION:A time control section 9 starts a 1st call control section 4 in a master station at each preset time by an input/output device such as operation console connected to an input/output terminal 14, a simultaneous call signal outputted from the 1st call control 4 is sent to each slave station through a modulatordemodulator section 3, a radio transmitter-receiver 2 and an antenna 1. A 1st reception control section 24 receives the simultaneous signal from the master station via an antenna 21, a radio transmitter-receiver 22 and a modulator-demodulator section 23 in a slave station and applies decoding. A storage section 27 receiving the decode signal inputs and stores the observing data from a measuring device 29 via an input section 28 and returns the stored data sequentially by using an individual signal sent from the master station. Thus, the master station can collect the data of the same time. |
