| 摘要 |
The transmission system combines a selfcontained, wireless seismic acquistion unit and a wireless, line of site, communications unit to form a plurality of individual shortrange transmission networks and also a midrange, line of sight transmission network. Each seismic unit has a power source with a shortrange transceiver and a geophone disposed within a casing. Each communications unit has an elongated support structure on which is mounted an independent power source, midrange radio tranceiver; and a shortrange transceiver configured to wirelessly communicate with the shortrange transceiver of the acquisition unit. The acquisition unit is buried under the surface of the ground, while the wireless communications unit is positioned in the near vicinity of the buried unit so as to vertically protrude above the ground. The acquisition unit and the wireless communications unit communicate by shortrange transmissions, while the wireless communications unit communicates with other seismic acquisition systems using midrange radio transmission. |
