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

Claim 22:
23. A data acquisition unit for acquiring seismic data for ambient noise tomography (ANT) processing at a server system, including:
a housing including an outer wall, a top part and a bottom part, wherein the outer wall, the top part and the bottom part together define an interior volume of the housing;
a sensing probe extending from the bottom part of the housing;
a vibration transducer in the housing and configured to receive vibrations via the sensing probe and generate an electrical output signal based on the received vibrations:
a first printed circuit board assembly (PCBA) located above the sensing probe, the first PCBA contained in the housing;
a processor included on the first PCBA, the processor configured to receive and pre-process the electrical output signal, the pre-processing including performing on e-bit normalisation, and to process the one-bit normalised electrical output signal to generate a data payload;
a global navigation satellite system (GNSS) module for processing a time synchronisation signal;
a power source;
power source holding structure contained in the housing, the power source holding structure securely holding the power source in the central portion;
a second PCBA located above the sensing probe, the second PCBA contained in the housing; and
a power supply in the housing and configured to supply power from the power source to the processor, to a satellite modem and to the GNSS module;
wherein the top part includes a modem communications port, the modem communications port for allowing communication between the satellite modem and the processor to transmit the data payload to a satellite, and wherein the second PCBA permits communicative coupling between the processor and the satellite modem; and
wherein the processor is configured to generate and store data containing the pre-processed electrical output signals, before forwarding, at a scheduled time period, 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 payloads containing the pre-processed electrical output signals to the satellite modem for transmission.