| 摘要 |
The invention relates to, a land seismic data acquisition system comprising: - a central processing unit; - a cabled network connected to said central processing unit comprising a plurality of acquisition lines each comprising: - electronic units assembled in series along a telemetry cable and each associated with at least one seismic sensor, said units processing signals transmitted by said sensor(s); - intermediate modules assembled in series along said telemetry cable and each associated with at least one of said electronic units, each intermediate module providing power supply and synchronisation of said electronic unit(s) wherewith it is associated; characterised in that each electronic unit is associated with at least two intermediate modules including at least one upstream and at least one downstream from said electronic unit along said telemetry cable, and comprises synchronisation means independent from said cabled network, bidirectional and autonomous power supply means, bidirectional storage means of said signals processed by said electronic units. |
