Patent ID: 11953636
Assignee: FLEET SPACE TECHNOLOGIES PTY LTD
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A data acquisition unit for acquiring seismic data for performing ambient noise tomography (ANT) at a server system, including:
a closed housing including atop portion, a central portion and a lower portion, the lower portion including a vibration sensing portion for sensing vibration in a ground region;
a vibration transducer in the housing and configured to receive vibrations via the vibration sensing portion and generate electrical output signals based on the received vibrations:
a processing un it in the housing to receive and pre-process the electrical output signals, the pre-processing including performing one-bit normalisation, and to process the one-bit normalised electrical output signals to generate data payloads;
a synchronisation unit to receive a synchronisation sign al from a satellite and to communicate synchronisation data to the processing unit based on the synchronisation signal;
a modem communication port positioned on the top portion, the modem communication port for allowing communication between a satellite modem and the processing unit to transmit the data payloads to a satellite;
a power source;
power source holding structure in the central portion, the power source holding structure securely holding the power source in the central portion; and
a power supply in the central portion configured to supply power from the power source to the processing unit, the satellite modem and the synchronisation unit;
wherein the processing unit is configured to generate and store data containing the pre-processed electrical output signals, before forwarding, at a scheduled time period, the data payloads containing the pre-processed electrical output signals to the satellite modem for transmission, or wherein the processing unit is configured to generate and forward the data payloads containing the pre-processed electrical output signals to the satellite modem for transmission.