Method and device for processing fused "underground+ground" data in deep formation exploration

A method for processing fused “underground+ground” data in deep formation exploration, comprising the following steps:

• S1, collecting underground multi-source data by using an underground intelligent probing rod, preprocessing the multi-source data to obtain an original digital signal, storing the original digital signal in an underground memory, receiving continuous exploration depth data by using a ground device, and extracting data about a correspondence between an exploration depth and time in the continuous exploration depth data;
• S2, performing high-bitrate and low-bitrate compression on the original digital signal respectively, and modulating compressed signals into an analog signal to obtain a high-bitrate-compressed and modulated analog signal and a low-bitrate-compressed and modulated analog signal respectively;
• S3, driving the high-bitrate-compressed and modulated analog signal by power, such that the high-bitrate-compressed and modulated analog signal is transmitted in a drilling stem with cable in a form of a power line carrier and then output;
• and driving the low-bitrate-compressed and modulated analog signal by power, such that the low-bitrate-compressed and modulated analog signal is first transmitted in a first section of the drilling stem with cable in the form of the power line carrier, re-collected in a short drill pipe with repeater, re-emitted to a second section of the drilling stem with cable, and then output after being demodulated;
• S4, when a line between the drilling stem with cable and the short section of the relay is disconnected, extracting data about a correspondence between data and time in the original digital signal stored in the underground memory, synchronizing and fusing the data about the correspondence between the data and the time, and the data about the correspondence between the exploration depth and the time, and outputting fused data;
• and
• S5, merging the output data in the S3 and the S4 as final output data.