CPC H04L 12/40013 (2013.01) [G01V 3/20 (2013.01); G01V 3/38 (2013.01); G06F 13/28 (2013.01); H04L 7/0008 (2013.01); H04L 12/40019 (2013.01); H04L 61/4552 (2022.05)] | 19 Claims |
1. A method for collecting geophysical data from a set of electrodes impressed in a ground surface, comprising:
providing a high voltage source;
providing a master controller, having a microprocessor and a memory;
providing a set of nodes, in electrical connection with the set of electrodes;
providing a high voltage bus, connected to the high voltage source, the master controller and the set of nodes;
providing an upstream communication bus, connected to the master controller and the set of nodes;
providing a downstream communication bus, connected to the master controller and the set of nodes;
providing the memory with a set of instructions, that when executed, cause the master controller to:
format the set of nodes using the upstream communication bus;
read a current signal from the high voltage bus;
programmably distribute a high voltage signal to the set of electrodes from the high voltage bus;
programmably read a set of voltage measurement values, from the set of electrodes; and
send the set of voltage measurement values to the master controller using the downstream communication bus; and
providing the master controller with:
a current sense resistor, connected to the high voltage bus;
a high voltage current measurement amplifier connected to the current sense resistor;
a first digital to analog converter connected to the high voltage current measurement amplifier; and
a high voltage isolation barrier connected between the first digital to analog converter and the microprocessor.
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