Seismic-data acquisition methods and apparatus
First Claim
1. A self-contained data acquisition unit for acquiring seismic data, the data acquisition unit comprising:
- a microprocessor;
an antenna adapted to receive an electromagnetic signal;
a decoder connected with the microprocessor and adapted to convert received electromagnetic signals to dual-tone multiple-frequency (“
DTMF”
) digits;
a geophone interface with a geophone for collecting acoustic data incident on the geophone;
a memory connected with the geophone interface for storing a representation of the collected acoustic data and for storing a representation of a reference electromagnetic signal to be used in synchronizing acoustic data collected by other data acquisition units; and
a battery power source connected with the microprocessor.
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Accused Products
Abstract
A self-contained data acquisition unit is provided for acquiring seismic data. The unit has a microprocessor and an antenna adapted to receive an electromagnetic signal. A decoder is connected with the microprocessor and adapted to convert received electromagnetic signals to dual-tone multiple-frequency (“DTMF”) digits. A geophone interface is provided with a geophone for collecting acoustic data incident on the geophone. A memory is connected with the geophone interface for storing a representation of the collected acoustic data and for storing a representation of a reference electromagnetic signal to be used in synchronizing acoustic data collected by other data acquisition units. A battery power source is connected with the microprocessor.
77 Citations
17 Claims
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1. A self-contained data acquisition unit for acquiring seismic data, the data acquisition unit comprising:
-
a microprocessor;
an antenna adapted to receive an electromagnetic signal;
a decoder connected with the microprocessor and adapted to convert received electromagnetic signals to dual-tone multiple-frequency (“
DTMF”
) digits;
a geophone interface with a geophone for collecting acoustic data incident on the geophone;
a memory connected with the geophone interface for storing a representation of the collected acoustic data and for storing a representation of a reference electromagnetic signal to be used in synchronizing acoustic data collected by other data acquisition units; and
a battery power source connected with the microprocessor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for acquiring seismic data, the method comprising:
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receiving an electromagnetic signal with a data acquisition unit;
decoding the electromagnetic signal by converting a portion of the received electromagnetic signal to dual-tone multiple-frequency (“
DTMF”
) digits;
identifying the decoded DTMF digits to be a wake-up command;
changing a state of the data acquisition unit from a dormant state to an active state in accordance with the wake-up command;
collecting acoustic data incident on a geophone provided in communication with the data acquisition unit while the data acquisition unit is in an active state; and
storing a representation of the collected acoustic data;
and storing a representation of a reference electromagnetic signal to be used in synchronizing acoustic data collected by other data acquisition units. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification