Gamma-ray spectra logging communication circuit and system therefor

Abstract

The invention relates to a gamma-ray spectra logging communication circuit and a system therefor. The circuit comprises a single-chip microcomputer, an upper computer, and an FPGA (field-programmable gate array), wherein the single-chip microcomputer is connected with the upper computer through a first bus, and the upper computer sends an instruction to the single-chip microcomputer through the first bus. The single-chip microcomputer transmits data to the upper computer through the first bus after receiving the instruction. The single-chip microcomputer is connected with the FPGA through a second bus, and the single-chip microcomputer transmits an instruction to the FPGA through the second bus. The FPGA transmits data to the single-chip microcomputer through a second bus after receiving the instruction. The circuit provided by the invention not only can share logging data to the greatest extent, and improves the capability of information execution and processing. Moreover, compared with a conventional natural gamma-ray spectra logging circuit, the circuit reduces the hardware and connection line scale.

Description

technical field [0001] The invention relates to the field of well logging communication, in particular to a gamma energy spectrum logging communication circuit and a system thereof. Background technique [0002] The gamma spectrum logging system in the prior art uses C8051F580 single-chip microcomputer, which can meet the needs of well logging in terms of temperature. The chip also integrates a large-capacity memory and rich and powerful peripheral circuits. It is rich in internal interfaces, Full-featured, performance-priced products. [0003] Controller area network (ControllerAreaNetwork, referred to as CAN) is a serial communication network developed for the automotive industry, because of its excellent performance has been widely used in many fields. CAN can provide up to 1Mbit / s data transmission rate, which makes real-time control very easy. In addition, the error checking characteristic of the hardware has also strengthened the anti-interference ability of CAN. ...

AI Technical Summary

Problems solved by technology

At present, the application of domestic gamma-ray spectrum logging tools in the petroleum industry is mainly to identify lithology, study sedimentary environment, oil-generating layers, and find reservoirs through the U, Th, and K contents measured by natural gamma-ray spectrum logging. , to determine the clay content, etc., characterized by a small content measurement range and a large diameter of the logging tool (generally greater than 90mm)

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