Deep stratum detection "underground + ground" fusion data processing method and device

Abstract

The application discloses a deep stratum detection "underground+ground" fusion data processing method, which comprises the following steps: collecting underground multi-source data by using an intelligent probe rod, processing the data into original digital signals, saving the original digital signals by using an underground memory, and acquiring continuous depth data by using a ground equipment; compressing and modulating the original digital signals at a high code rate or a low code rate; transmitting the signals in the form of power carrier in a through-cable drill rod by power driving, and then outputting the signals, or first transmitting the signals in a first through-cable drill rod, then re-collecting the signals in a relay short section, and then transmitting the signals in a second through-cable drill rod and outputting the signals; when the transmission line is disconnected, synchronizing and fusing the corresponding data between the data and time and the corresponding data between the detection depth and time, and finally outputting the data of the transmission line as the final data output. The method can collect large amounts of data, has many types and strong visibility, and can more intuitively reflect the underground conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of data acquisition and processing, in particular to a deep stratum exploration "underground + ground" fusion data processing method. BACKGROUND

[0002] With the rapid development of underground structure engineering construction, the demand for engineering geological exploration is increasing. The exploration of the status of underground structure engineering can help to know the status of underground structure engineering in advance, facilitate the correct arrangement of underground work, and also help to predict whether the underground structure engineering is abnormal in advance, evaluate the safety risk, and avoid greater hidden dangers and losses.

[0003] Patent CN112761638A: Method for determining coal seam trend and coal seam thickness, data transmission device and system, provides a kind of method for determining coal seam trend and coal seam thickness, data transmission device and system, when drill collar is drilled in well, obtain the well trajectory data sent by the measurement while drilling equipment and the stratum gamma data sent by gamma detection equipment;The well trajectory data and stratum gamma data are jointly coded, and the well trajectory data and stratum gamma data after joint coding are sent to the host computer through single-core transmission, so that the host computer analyzes stratum gamma data and well trajectory data, determines coal seam thickness and coal seam trend;In this way, when drill collar is drilled in well, well trajectory data and stratum gamma data can be obtained in real time, and then coal seam thickness and coal seam trend are determined according to stratum gamma data and well trajectory data, to guide drill collar drilling along coal seam in real time;In this way, coal seam thickness and coal seam trend can be determined without frequent branch opening, reducing construction difficulty and improving coal mining efficiency.

[0004] The measurement while drilling equipment in the present application can obtain the data of underground coal seam thickness and trend, but the data transmission and processing method is simple, the transmission method is single, and it is greatly affected by the stratum. And the data content of the measurement while drilling is mainly geophysical prospecting data, which cannot intuitively reflect the underground situation. SUMMARY

[0005] To solve the above problems, the present application provides a deep stratum exploration "underground + ground" fusion data processing method, comprising the following steps:

[0006] S1, underground intelligent probe rod is used for underground multi-source data acquisition, and multi-source data is preprocessed to obtain original digital signal, underground memory is used to save original digital signal, and surface equipment is used to receive continuous detection depth data and extract corresponding relationship data between detection depth and time in continuous detection depth data;

[0007] S2, the original digital signal is compressed at high or low code rate, and the compressed signal is modulated into analog signal to obtain high code rate compressed and modulated analog signal and low code rate compressed and modulated analog signal.

[0008] S3, the analog signal compressed at high code rate and modulated is output after being transmitted in the form of power carrier in the through cable drill rod after being power driven; the analog signal compressed at low code rate and modulated is transmitted in the form of power carrier in the first through cable drill rod after being power driven, and then is retransmitted into the second through cable drill rod after being demodulated after being reacquired in the relay short section;

[0009] S4, when a break occurs in the through cable drill rod and the relay short section, the original digital signal data and the time corresponding relationship data in the original digital signal stored in the underground storage are extracted, and data synchronization and data fusion are performed between the data corresponding relationship data and the time corresponding relationship data between the detection depth and the time, and the data are output;

[0010] S5, the two part output data of S3 and S4 are merged as the final data output.

[0011] Further, in step S1, the underground multi-source data includes signals collected by a laser radar, a camera, a sonar and an electronic compass.

[0012] Further, in step S1, the multi-source data is preprocessed in the following manner: the multi-source data is sampled, quantized and filtered to obtain the original digital signal.

[0013] Further, in step S2, a threshold is set, the original digital signal with a data quantity greater than the threshold is compressed at low code rate, and the original digital signal with a data quantity less than the threshold is compressed at high code rate.

[0014] Further, in step S2, the analog signal compressed at high code rate and modulated and the analog signal compressed at low code rate and modulated are secondary coded serial data.

[0015] The application further provides a deep stratum detection "underground + ground" fusion data processing device, which comprises:

[0016] a processor;

[0017] a memory having a computer program capable of running on the processor stored thereon;

[0018] When the computer program is executed by the processor, the deep stratum detection "underground + ground" fusion data processing method is realized.

[0019] The technical scheme provided by the application has the following beneficial effects:

[0020] The application provides a deep stratum exploration 'underground + ground' fusion data processing method, which is more feasible compared with the method in the background art. The underground multi-source data is collected by the intelligent probe rod, and is processed into original digital signals. The original digital signals are saved in the underground memory, and the continuous depth data is obtained by the ground equipment. The original digital signals are compressed at a high or low code rate, and are modulated. The signals are transmitted in the form of power carrier in the transmission line, are first transmitted in the cable drill rod, are output, or are first transmitted in the first section of the cable drill rod, are then re-collected in the relay short section, are transmitted into the second section of the cable drill rod, and are output. When the transmission line is disconnected, the data corresponding to the time and the data corresponding to the detection depth and the time are synchronized and fused, and finally, the output data of the transmission line is taken as the final data output. According to different underground conditions, different data transmission modes on the ground or underground can be used, the amount of collected data is large, the types are various, the visibility is strong, and the situation of the ground can be more intuitively reflected. Real-time monitoring of the ground can be realized, and the continuity of the intelligent probe rod measurement data in time and depth can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a flow chart of the deep stratum exploration 'underground + ground' fusion data processing method of the embodiment of the application.

[0022] Figure 2 is a flow chart of the deep stratum exploration 'underground + ground' fusion data processing method of the embodiment of the application. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the application clearer, the embodiments of the application will be further described below with reference to the drawings.

[0024] The flow chart and the flow chart of the deep stratum exploration 'underground + ground' fusion data processing method of the embodiment of the application are as shown in Figure 1 and Figure 2 , and specifically include the following steps:

[0025] S1, the underground multi-source data is collected by the intelligent probe rod, the multi-source data includes signals collected by a laser radar, a camera, a sonar and an electronic compass, and the multi-source data is preprocessed by sampling, quantization and filtering to obtain original digital signals. The original digital signals are saved in the underground memory, and the continuous detection depth data is received by the ground equipment, and the corresponding relationship data between the detection depth and the time in the continuous depth data is extracted.

[0026] In a further embodiment, the ground equipment includes a demodulator for signal conversion, a data memory, an industrial computer for real-time communication and a platform controller. The intelligent probe rod is controlled by the platform controller and the industrial computer.

[0027] The modulation and demodulation is divided into two parts, the modulator underground and the demodulator on the ground.

[0028] The modem is connected with the intelligent probe rod power supply system, realizing the bidirectional transmission of power carrier signals. The modem is connected with the industrial computer, extracting the digital signals in the power carrier and recording the data stream.

[0029] The signal modulated by the modulator needs to be transmitted to the demodulator on the ground through the power carrier.

[0030] The power carrier is to superimpose high-frequency signals on the power transmission line, so that the power line can transmit power and data signals at the same time.

[0031] In the intelligent probe rod, the power supply system is the power line between the ground and the underground, which powers various sensors in the probe rod and also serves as a signal transmission line for the power carrier, transmitting the signals collected by the sensors to the ground.

[0032] The acquisition method of the detection depth data is to obtain displacement data through a magnetic encoder. The magnetic encoder uses a magnetic field and a magnetic sensitive element (such as a Hall sensor) to measure displacement. In the magnetic encoder, the base part contains one or more magnets, and the measurement part contains a magnetic sensitive element. When the measurement part rotates or linearly displaces with the moving object, the distribution of the magnetic field also changes accordingly. The magnetic sensitive element senses the change in the magnetic field and converts it into an electrical signal. The electrical signal is transmitted to the ground industrial control equipment, and the continuous detection depth information is obtained by analyzing the electrical signal data with the industrial control equipment.

[0033] The measurement data is first transmitted to the intelligent probe rod by the ground industrial control, and the intelligent probe rod collects data through the laser radar, multifunctional camera, sonar and electronic compass. The output analog signal is sampled, quantized and filtered under the drive of the clock signal, and the original digital signal is obtained after preprocessing.

[0034] S2, the original digital signal is compressed at a high or low code rate to avoid data loss, and the compressed signal is modulated into an analog signal to obtain a high code rate compressed and modulated analog signal and a low code rate compressed and modulated analog signal.

[0035] A threshold is set, and the original digital signal with a data quantity greater than the threshold is compressed at a low code rate, and the original digital signal with a data quantity less than the threshold is compressed at a high code rate.

[0036] In a further embodiment, the high code rate compressed and modulated analog signal and the low code rate compressed and modulated analog signal are twice encoded serial data.

[0037] S3, analog signals compressed at high code rate and modulated are output after being transmitted in the form of power carrier in the through cable drill pipe; analog signals compressed at low code rate are first transmitted in the form of power carrier in the first through cable drill pipe, then retransmitted in the second through cable drill pipe after being reacquired in the relay short section.

[0038] Considering the signal attenuation problem, if the transmission distance of the signal is long, the signal relay short section is installed at intervals between the through cable drill pipes to realize signal gain and fidelity and increase the transmission distance of the signal.

[0039] S4, when a break occurs between the through cable drill pipe and the relay short section, the original digital signal data and the time corresponding relationship data of the original digital signal stored in the underground storage are extracted, and the data synchronization and data fusion between the time corresponding relationship data and the corresponding relationship data between the detection depth and the time are performed to output.

[0040] Taking the time information as the reference, the intelligent probe data and the depth data recorded on the ground are synchronously recorded to establish the corresponding relationship between the depth and the measurement data, and the data information processing along the depth direction and the time synchronization is realized.

[0041] S5, after the test is completed, the two part output data of S3 and S4 are merged by software as the final data output to realize the continuity of the intelligent probe measurement data in depth.

[0042] The embodiment also includes a deep stratum detection "underground + ground" fusion data processing device, comprising:

[0043] a processor;

[0044] a memory having a computer program capable of running on the processor stored thereon;

[0045] wherein the computer program is executed by the processor to realize the deep stratum detection "underground + ground" fusion data processing method.

[0046] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for processing fusion data of "subsurface + surface" for deep formation exploration, characterized in that, The method comprises the following steps: S1, collecting underground multi-source data by using an underground intelligent probe rod, pre-processing the multi-source data to obtain original digital signals, saving the original digital signals by using an underground memory, receiving continuous detection depth data by using a surface device, and extracting corresponding relationship data between detection depth and time in the continuous detection depth data; S2, compressing the original digital signals at a high code rate or a low code rate, and modulating the compressed signals into analog signals to obtain high-code-rate compressed and modulated analog signals and low-code-rate compressed and modulated analog signals; S3, outputting the high-code-rate compressed and modulated analog signals after being transmitted in the power carrier form in the through-cable drill rod by power driving; the low-code-rate compressed and modulated analog signals are first transmitted in the power carrier form in the first through-cable drill rod by power driving, then retransmitted in the second through-cable drill rod after being demodulated; S4, when a break occurs between the through-cable drill rod and the relay short section, extracting corresponding relationship data between original digital signal data and time in the original digital signals saved by the underground memory, and outputting the corresponding relationship data after data synchronization and data fusion between the corresponding relationship data and the corresponding relationship data between the detection depth and the time; S5, merging the output data of S3 and S4 as the final data output.

2. The deep formation exploration "subsurface + surface" fusion data processing method according to claim 1, characterized in that, In step S1, the underground multi-source data includes signals collected by a laser radar, a camera, a sonar, and an electronic compass.

3. The deep formation exploration "subsurface + surface" fusion data processing method according to claim 1, characterized in that, In step S1, the multi-source data is pre-processed by sampling, quantizing, and filtering to obtain the original digital signals.

4. The deep formation exploration "subsurface + surface" fusion data processing method according to claim 1, characterized in that, In step S2, a threshold is set, the original digital signals with a data quantity greater than the threshold are compressed at a low code rate, and the original digital signals with a data quantity less than the threshold are compressed at a high code rate.

5. The deep formation exploration "subsurface + surface" fusion data processing method according to claim 1, characterized in that, In step S2, the high-code-rate compressed and modulated analog signals and the low-code-rate compressed and modulated analog signals are twice encoded serial data.

6. The device for processing the fusion data of the deep formation detection "underground + ground" is characterized in that, The device comprises: a processor; a memory having a computer program stored thereon and executable on the processor; wherein the computer program is executed by the processor to implement the deep formation detection "underground + ground" fusion data processing method according to any one of claims 1 to 5.

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