| abstract |
A wireless seismic data acquisition system wherein seismic data detected at a plurality of remote detecting locations is to be transmitted to a remote recording location is disclosed. At a given detecting location, seismic data samples are digitally encoded for radio data transmission to the recording location via a radio frequency relay system comprising data acquisition and relay units located at the various detecting locations. The data samples from the various units located at the detecting locations are injected into the stream of data being relayed by radio to the recording location according to a predetermined program. Units at each detecting location function to relay radio data transmissions from one adjacent location to another, and at the proper time initiate radio data transmissions for relaying thereof. The group of units initiating radio data transmissions is selectable from a larger number of such units by means of a radio signal from a remote control station. Units not within the selected group perform only the relay function. |