CN113945984A - Rock-soil mass electromagnetic signal processing method and system - Google Patents
Rock-soil mass electromagnetic signal processing method and system Download PDFInfo
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Abstract
The embodiment of the invention provides a method and a system for processing electromagnetic signals of a rock-soil mass, wherein the system for processing the electromagnetic signals of the rock-soil mass comprises an acquisition module, a logic control module, a digital signal processing module and a microprocessor module, and the method comprises the following steps: the microprocessor module receives an operation instruction of a user; the microprocessor module sends the operation instruction to the digital signal processing module; the digital signal processing module controls the logic control module to set the acquisition parameters of the electromagnetic signals of the rock-soil body according to the operation instructions; the logic control module controls the acquisition module, acquires the rock-soil body electromagnetic signals according to the setting of acquisition parameters, and converts the acquired rock-soil body electromagnetic signals into digital signals from analog signals; the digital signal processing module processes the digital signals to obtain parameter information of the electromagnetic signals of the rock and soil mass, so that the processing efficiency of the electromagnetic signals of the rock and soil mass is improved.
Description
Technical Field
The invention relates to the technical field of signal processing, in particular to a method and a system for processing electromagnetic signals of a rock-soil body.
Background
The magnetotelluric sounding method is a geophysical exploration method for researching the distribution rule of the resistivity of underground rocks by observing the ground electromagnetic field.
After the theory of the magnetotelluric method is proposed in the last 40 th century, through years of research and accumulation, the research and development of magnetotelluric instruments are mature and successfully commercialized, and typically, V8 electromagnetic instruments of Canadian Phoenix company, EH-4 electromagnetic instruments of American Laurel company, GMS-07 electromagnetic instruments of Germany GEOMERIX company and the like can see instrument objects in relevant domestic units, and no mature domestic commercial electromagnetic instruments can be sold in 2020 by research. In recent years, the institute of geophysical prospecting of the corridor of the national resource department is supported by scientific research fund special for national important instrument research, and succeeds in the research and development of a three-dimensional geoelectromagnetic prospecting instrument, and research results are mentioned in annual meeting reports of electromagnetism.
In the prior art, the processing method for the electromagnetic signals of the rock and soil mass generally collects the electromagnetic signals of the rock and soil mass, sends the collected electromagnetic signals of the rock and soil mass to the storage device, and then carries out manual processing, so that the mode has low effect, and the time for obtaining the processing result based on the electromagnetic signals of the rock and soil mass is long.
Disclosure of Invention
The invention aims to provide a method and a system for processing electromagnetic signals of a rock-soil mass, which can improve the processing efficiency of the electromagnetic signals of the rock-soil mass.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a method for processing an electromagnetic signal of a rock-soil mass, which is applied to a rock-soil mass electromagnetic signal processing system, wherein the rock-soil mass electromagnetic signal processing system comprises an acquisition module, a logic control module, a digital signal processing module and a microprocessor module, and the method comprises:
the microprocessor module receives an operation instruction of a user;
the microprocessor module sends the operation instruction to the digital signal processing module;
the digital signal processing module controls the logic control module to set acquisition parameters of the electromagnetic signals of the rock-soil body according to the operation instruction;
the logic control module controls the acquisition module, acquires rock-soil body electromagnetic signals according to the setting of acquisition parameters, and converts the acquired rock-soil body electromagnetic signals into digital signals from analog signals;
and the digital signal processing module processes the digital signal to obtain the parameter information of the rock-soil body electromagnetic signal.
Optionally, the method further comprises:
the digital signal processing module obtains a corresponding rock-soil body state according to the parameter information;
and the digital signal processing module sends the rock-soil body state and the parameter information to the microprocessor module for display.
Optionally, the step of processing the digital signal by the digital signal processing module to obtain the parameter information of the electromagnetic signal of the rock-soil mass includes:
and the digital signal processing module sequentially performs time domain filtering processing, time-frequency conversion processing and frequency spectrum analysis processing on the digital signals to obtain parameter information of the rock-soil body electromagnetic signals.
Optionally, the step of setting the acquisition parameters of the electromagnetic signals of the rock-soil mass by the logic control module is controlled by the digital signal processing module according to the operation instruction, and includes:
the digital signal processing module controls the logic control module to generate an analog/digital conversion starting signal and a time sequence logic signal according to the operation instruction;
the logic control module controls the acquisition module, acquires rock-soil body electromagnetic signals according to the setting of acquisition parameters, and converts the acquired rock-soil body electromagnetic signals into digital signals by analog signals, and the method comprises the following steps:
the acquisition module acquires rock-soil body electromagnetic signals according to the analog/digital conversion starting signals and the sequential logic signals;
the acquisition module converts the acquired electromagnetic signals of the rock and soil mass into digital signals from analog signals.
Optionally, the method further comprises:
the digital signal processing module judges whether the parameter information is abnormal or not;
under the condition that the parameter information is abnormal, the digital signal processing module generates prompt information and sends the prompt information to the microprocessor module;
and the microprocessor module receives and displays the prompt message.
In a second aspect, an embodiment of the present invention further provides a system for processing an electromagnetic signal of a rock-soil mass, where the system includes: the device comprises an acquisition module, a logic control module, a digital signal processing module and a microprocessor module;
the acquisition module, the logic control module, the digital signal processing module and the microprocessor module are in communication connection;
the acquisition module is used for acquiring rock-soil body electromagnetic signals;
the logic control module is used for controlling the acquisition module to acquire the electromagnetic signals of the rock and soil mass and caching the acquired electromagnetic signals of the rock and soil mass;
the digital signal processing module is used for processing the operation instruction sent by the microprocessor module and the rock-soil body electromagnetic signal;
and the microprocessor module is used for receiving an operation instruction of a user and displaying the rock-soil body electromagnetic signal.
Optionally, the system further comprises a power module;
the power module supplies power for the acquisition module, the logic control module, the digital signal processing module and the microprocessor module.
Optionally, the acquisition module is a multi-channel synchronous acquisition module.
Optionally, the logic control module communicates with the microprocessor module via a UPP interface.
Optionally, the microprocessor module and the digital signal processing module adopt CPU inter-core communication to implement resource sharing of the digital signal processing module and the microprocessor module.
According to the invention, an operation instruction of a user is received by the microprocessor module, the microprocessor module sends the operation instruction to the digital signal processing module, the digital signal processing module controls the logic control module to set acquisition parameters of the electromagnetic signals of the rock and soil mass according to the operation instruction, the logic control module controls the acquisition module to acquire the electromagnetic signals of the rock and soil mass according to the acquisition parameters and convert the acquired electromagnetic signals of the rock and soil mass into digital signals, and the digital signal processing module processes the digital signals to obtain parameter information of the electromagnetic signals of the rock and soil mass. The invention controls the parameters of the needed rock-soil body electromagnetic signals through the logic control module, the acquisition module acquires the specific rock-soil body electromagnetic signals according to the setting of the acquisition parameters of the logic control module, and the digital signal processing module processes the acquired rock-soil body electromagnetic signals, and the digital signal processing module can increase the signal processing efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a process of a method for processing electromagnetic signals of a rock-soil mass according to an embodiment of the present invention;
fig. 3 is a second flowchart illustrating steps of a method for processing electromagnetic signals of a rock-soil mass according to an embodiment of the present invention;
fig. 4 is a structural block diagram of a rock-soil mass electromagnetic signal processing system according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
In the processing mode of the electromagnetic signals of the rock and soil mass in the prior art, after the electromagnetic signals of the rock and soil mass are acquired, the acquired electromagnetic signals of the rock and soil mass are sent to a server or other electronic equipment with data processing capability in a wired or wireless mode, and the acquired electromagnetic signals of the rock and soil mass are processed based on the server or other electronic equipment with data processing capability. The method cannot acquire the parameter information of the current rock-soil body electromagnetic signal in real time. Because the rock-soil body electromagnetic signals acquired at different time are different, the rock-soil body electromagnetic signal processing mode in the prior art is low in efficiency.
In view of the above-mentioned problems, the present embodiment provides a method and a system for processing an electromagnetic signal of a rock-soil mass, which can improve the processing efficiency of the electromagnetic signal of the rock-soil mass, and the scheme provided by the present embodiment is described in detail below.
The embodiment provides a system capable of processing electromagnetic signals of rock and soil mass. In a possible implementation manner, the system for Processing electromagnetic signals of rock and earth mass includes a Processing device and an acquisition device, the Processing device may include a server or a processor, and the processor may have a component capable of Processing electromagnetic signals of rock and earth mass, such as a Central Processing Unit (CPU), a Graphic Processing Unit (GPU), a Digital Signal Processor (DSP), a microprocessor (Advanced RISC machine), ARM, and the like, so as to execute the method for Processing electromagnetic signals of rock and earth mass provided by the present embodiment.
In another possible implementation manner, the rock-soil mass electromagnetic signal processing system can also be a server which is communicated with the acquisition device. The server can process the rock-soil body electromagnetic signals acquired by the acquisition device to obtain the parameter information of the rock-soil body electromagnetic signals.
Fig. 1 is a schematic view of an application scenario of the present invention. In the figure, 1 is a signal preamplifier, 2 is a battery, 3 is a rock-soil body electromagnetic signal processing system, the rock-soil body electromagnetic signal is input to the signal preamplifier, the signal preamplifier amplifies the input rock-soil body electromagnetic signal, and the signal preamplifier transmits the amplified signal to the rock-soil body electromagnetic signal processing system provided by the application so as to process the rock-soil body electromagnetic signal. In FIG. 1, E is the electric field signal; h is a magnetic field signal; ex is an electric field signal in the x direction; ey is a y-direction electric field signal; ex0 is the x0 direction electric field signal in the x direction, the total electric field signal to the x direction added to the x1 direction electric field signal; ex1 is the x1 direction electric field signal in the x direction, the total electric field signal to the x direction added to the x0 direction electric field signal; ey0 is the y0 direction electric field signal in the y direction, the total electric field signal to the x direction added to the y1 direction electric field signal; ey1 is the ly1 direction electric field signal in the y direction, the total electric field signal to the y direction added with the y0 direction electric field signal; hx is a magnetic field signal in the x direction; hy is the y-direction magnetic field signal.
Referring to fig. 2, the embodiment of the present invention provides one of the step flow charts of a method for processing electromagnetic signals of a rock-soil mass, and the embodiment of the present invention includes the following steps:
the embodiment of the invention is applied to a rock-soil body electromagnetic signal processing system, and the rock-soil body electromagnetic signal processing system comprises an acquisition module, a logic control module, a digital signal processing module and a microprocessor module.
Step 201: the microprocessor module receives an operation instruction of a user.
Step 202: and the microprocessor module sends the operation instruction to the digital signal processing module.
Step 203: and the digital signal processing module controls the logic control module to set the acquisition parameters of the electromagnetic signals of the rock and soil mass according to the operation instructions.
Step 204: the logic control module controls the acquisition module, acquires the rock-soil body electromagnetic signals according to the setting of the acquisition parameters, and converts the acquired rock-soil body electromagnetic signals into digital signals from analog signals.
Step 205: and the digital signal processing module processes the digital signal to obtain the parameter information of the rock-soil body electromagnetic signal.
The microprocessor module comprises a microprocessor and a display interface, the display interface comprises a function control for a user to click, the user clicks the corresponding function control according to requirements, and the microprocessor module generates an operation instruction based on the click operation of the user on the function control.
The Jazelle technology of the microprocessor module enables Java acceleration to achieve much higher performance than a software-based Java Virtual Machine (JVM), with 80% lower power consumption than an equivalent non-Java accelerated core. The addition of a DSP instruction set to the CPU functionality provides enhanced 16-bit and 32-bit arithmetic operation capabilities, improving performance and flexibility. The microprocessor module also provides two leading edge features to assist in debugging of highly integrated SoC devices with deeply embedded processors, which are the embedded ICE-RT logic and embedded trace macro core (ETMS) family. A microprocessor module: the acquisition module converts the acquired electromagnetic signals of the rock-soil mass from analog signals into digital signals, the digital signals are transmitted to the memory of the digital signal processing module of the embedded computer in a UPP interface mode through the logic control module, the digital signal processing module finishes the processing of the digital signals of the electromagnetic signals of the rock-soil mass, and then the software controls the hardware of the microprocessor module to automatically finish the functions of displaying, preprocessing, storing and the like of the electromagnetic signals.
The microprocessor module sends the operation instruction of the user to the digital signal processing module, and the digital signal processing module processes the received operation instruction.
Besides processing the operation instruction sent by the microprocessor module, the digital signal processing module also processes the rock and soil body electromagnetic signal acquired by the acquisition module.
Digital signal processing modules are theories and techniques for digitally representing and processing signals. Digital signal processing and analog signal processing are a subset of signal processing. The purpose of digital signal processing is to measure or filter a continuous analog signal of the real world. It is therefore necessary to convert the signal from the analogue domain to the digital domain before digital signal processing. The data converted by the analog/digital conversion circuit unit is transmitted to the memory of the digital signal processing module of the embedded computer by a UPP interface through the programmable logic device, and then the microprocessor module is controlled by software to complete the digital signal processing function of the rock-soil body electromagnetic wave signals.
After the digital signal processing module processes the operation instruction sent by the microprocessor module, the digital signal processing module controls the logic control module to set the acquisition parameters of the rock-soil body electromagnetic signals based on the processed operation instruction, for example: setting a starting signal and a time sequence logic signal for the electromagnetic signal of the rock and soil mass.
The method specifically comprises the following steps: the digital signal processing module controls the logic control module to generate an analog/digital conversion starting signal and a time sequence logic signal according to the operation instruction; the acquisition module acquires the rock-soil body electromagnetic signals according to the analog/digital conversion starting signals and the time sequence logic signals; the acquisition module converts the acquired electromagnetic signals of the rock and soil mass into digital signals.
The logic control module is an FPGA (Field Programmable Gate Array), and the FPGA module is widely applied in the communication industry. The FPGA module is not only limited to research and design of chips, but also can be optimally designed by means of a specific chip model aiming at products in more fields. From the viewpoint of chip devices, the FPGA module itself constitutes a typical integrated circuit in a semi-custom circuit, and includes a digital management module, an embedded unit, an output unit, an input unit, and the like.
The logic control module sends the set acquisition parameters to the acquisition module, and the acquisition module acquires the electromagnetic signals of the rock and soil mass according to the set acquisition parameters and converts the acquired electromagnetic signals of the rock and soil mass into digital signals from analog signals. The rock-soil body electromagnetic signals can be processed by software only after being converted into digital signals through A/D, and the conversion of the rock-soil body electromagnetic signals is realized through an acquisition module.
The acquisition module is an ADC module, integrates the characteristics of electromagnetic signals of rock and soil mass and parameters such as sampling precision, sampling rate, quantization error and the like, adopts analog/digital conversion to multi-channel synchronous sampling, and has the functions of sampling rate adjustment, bandwidth adjustment and power consumption adjustment.
After the acquisition module acquires the acquired electromagnetic signals of the rock and soil mass, conversion from analog signals to digital signals is completed, and the acquisition module sends the digital signals to the logic control module for caching. The logic control module realizes double FIFO (First-In-First-Out) buffering of data streams.
Based on the collection of the rock-soil body electromagnetic signals by the collection module, the collection module integrates the characteristics of the rock-soil body electromagnetic signals and parameters such as sampling precision, sampling rate, quantization error and the like, so that the high-precision collection of the rock-soil body electromagnetic signals is realized.
The digital signal processing module acquires the digital signal of the rock-soil body electromagnetic signal from the cache of the logic control module, processes the digital signal of the rock-soil body electromagnetic signal to obtain parameter information of the rock-soil body electromagnetic signal, and sends the parameter information of the rock-soil body electromagnetic signal to the microprocessor module for displaying.
When the parameter information representation has a larger error with the parameter information of the standard rock-soil body electromagnetic signal, the condition that the rock-soil body represented by the rock-soil body electromagnetic signal collected currently is abnormal is indicated, alarm processing is needed, the digital signal processing module judges whether the parameter information is different, and under the condition that the parameter information is abnormal, the digital signal processing module generates prompt information and sends the prompt information to the microprocessor module; and the microprocessor module receives and displays the prompt message.
It should be noted that the acquisition module, the logic control module, the digital signal processing module and the acquisition module are all connected through communication.
According to the invention, an operation instruction of a user is received by the microprocessor module, the microprocessor module sends the operation instruction to the digital signal processing module, the digital signal processing module controls the logic control module to set acquisition parameters of electromagnetic signals of the rock and soil mass according to the operation instruction, the logic control module controls the acquisition module to acquire the electromagnetic signals of the rock and soil mass according to the acquisition parameters, the acquired electromagnetic signals of the rock and soil mass are converted into digital signals from analog signals, and the digital signal processing module processes the digital signals to obtain parameter information of the electromagnetic signals of the rock and soil mass. The method controls the parameters of the required rock-soil body electromagnetic signals through the logic control module, the acquisition module acquires specific rock-soil body electromagnetic signals according to the setting of the acquisition parameters of the logic control module, and the acquired rock-soil body electromagnetic signals are processed through the digital signal processing module, the digital signal processing module can be adopted to increase the signal processing efficiency, and the method is applied to landslide geological disaster detection or monitoring.
The invention relates to a method for monitoring an unstable slope by a rock-soil body electromagnetic signal processing method, which is the inheritance and development of the method of the geoelectromagnetic method in the traditional earth detection.
In another embodiment of the present invention, as shown in fig. 3, a flow chart of steps of a method for processing an electromagnetic signal of a rock-soil mass is provided, which specifically includes the following steps:
step 301: and the digital signal processing module obtains the corresponding rock and soil mass state according to the parameter information.
Step 302: and the digital signal processing module sends the rock and soil mass state and parameter information to the microprocessor module for display.
The digital signal processing module stores rock-soil body states corresponding to the parameter information of different rock-soil body electromagnetic signals from the server or the rock-soil body electromagnetic signal database according to the parameter information of the rock-soil body electromagnetic signals, and searches the rock-soil body states corresponding to the parameter information of the rock-soil body electromagnetic signals from the server or the rock-soil body electromagnetic signal database.
Or the digital signal processing module sends the processed parameter information of the electromagnetic signal of the rock and soil mass to a server or a rock and soil mass electromagnetic signal database, the server or the rock and soil mass electromagnetic signal database receives the parameter information corresponding to the sent electromagnetic signal of the rock and soil mass, the server or the rock and soil mass electromagnetic signal database determines the state of the rock and soil mass corresponding to the parameter information according to the parameter information, the state of the rock and soil mass is sent to the digital signal processing module, and the digital signal processing module sends the state of the rock and soil mass to the microprocessor module for displaying. Or the server or the rock-soil body electromagnetic signal database directly sends the rock-soil body state to the microprocessor module for display.
The microprocessor module is used for displaying the state of the rock-soil body and the parameter information of the electromagnetic signal of the rock-soil body, and a user of the electromagnetic signal processing system of the rock-soil body can visually check the current state of the rock-soil body and the parameter information corresponding to the state of the rock-soil body, so that the monitoring on the rock-soil body is facilitated.
The processing of the electromagnetic signal of the rock-soil mass by the digital signal processing module to obtain the parameter information of the electromagnetic signal of the rock-soil mass specifically includes, for the step 205:
and the digital signal processing module sequentially performs time domain filtering processing, time-frequency conversion processing and frequency spectrum analysis processing on the digital signals to obtain parameter information of the rock-soil body electromagnetic signals.
Besides time domain filtering processing, time-frequency conversion processing and spectrum analysis processing are carried out on the digital signals, power spectrum domain processing and Z domain (frequency-depth domain) processing can be carried out on the digital signals after the spectrum analysis processing, and finally parameter information of the electromagnetic signals of the rock and soil mass is obtained.
And the digital signal processing module sends the parameter information to the microprocessor module for display.
According to the invention, an operation instruction of a user is received by the microprocessor module, the microprocessor module sends the operation instruction to the digital signal processing module, the digital signal processing module controls the logic control module to set acquisition parameters of electromagnetic signals of the rock and soil mass according to the operation instruction, the logic control module controls the acquisition module to acquire the electromagnetic signals of the rock and soil mass according to the acquisition parameters, the acquired electromagnetic signals of the rock and soil mass are converted into digital signals from analog signals, and the digital signal processing module processes the digital signals to obtain parameter information of the electromagnetic signals of the rock and soil mass. The invention controls the parameters of the needed rock-soil body electromagnetic signals through the logic control module, the acquisition module acquires the specific rock-soil body electromagnetic signals according to the setting of the acquisition parameters of the logic control module, and the digital signal processing module processes the acquired rock-soil body electromagnetic signals, and the digital signal processing module can increase the signal processing efficiency.
Referring to fig. 4, a structural block diagram of a rock-soil body electromagnetic signal processing system according to an embodiment of the invention is shown, the system comprising: an acquisition module 401, a logic control module 402, a digital signal processing module 403 and a microprocessor module 404;
the acquisition module 401, the logic control module 402, the digital signal processing module 403 and the microprocessor module 404 are in communication connection;
the acquisition module 401 is used for acquiring rock-soil body electromagnetic signals;
the logic control module 402 is used for controlling the acquisition module to acquire the electromagnetic signals of the rock-soil mass and caching the acquired electromagnetic signals of the rock-soil mass;
the digital signal processing module 403 is configured to process the operation instruction sent by the microprocessor module and the rock-soil body electromagnetic signal;
the microprocessor module 404 is used for receiving an operation instruction of a user and displaying the rock-soil body electromagnetic signal.
Optionally, the geotechnical body electromagnetic signal processing system further comprises: a power module 405.
The power module 405 supplies power to the acquisition module, the logic control module, the digital signal processing module and the microprocessor module.
The power module uses an external lithium battery as a power supply to stabilize, filter and reduce the voltage of the power supply and provide required voltage for each module, and has the self-protection functions of preventing reverse connection of a positive electrode and a negative electrode, overvoltage, undervoltage and the like.
Optionally, the acquisition module 401 is a multi-channel synchronous acquisition module.
Optionally, the logic control module 402 communicates with the microprocessor module via a UPP interface.
Optionally, the microprocessor module 404 and the digital signal processing module adopt CPU inter-core communication to implement resource sharing of the digital signal processing module and the microprocessor module.
It should be noted that the UPP interface is a universal parallel port, wherein the UPP interface may be a DSP6748 UPP interface.
According to the invention, an operation instruction of a user is received by the microprocessor module, the microprocessor module sends the operation instruction to the digital signal processing module, the digital signal processing module controls the logic control module to set acquisition parameters of electromagnetic signals of the rock and soil mass according to the operation instruction, the logic control module controls the acquisition module to acquire the electromagnetic signals of the rock and soil mass according to the acquisition parameters, the acquired electromagnetic signals of the rock and soil mass are converted into digital signals from the electromagnetic signals, and the digital signal processing module processes the digital signals to obtain parameter information of the electromagnetic signals of the rock and soil mass. The invention controls the parameters of the needed rock-soil body electromagnetic signals through the logic control module, the acquisition module acquires the specific rock-soil body electromagnetic signals according to the setting of the acquisition parameters of the logic control module, and the digital signal processing module processes the acquired rock-soil body electromagnetic signals, and the digital signal processing module can increase the signal processing efficiency.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A rock-soil body electromagnetic signal processing method is applied to a rock-soil body electromagnetic signal processing system and is characterized in that the rock-soil body electromagnetic signal processing system comprises an acquisition module, a logic control module, a digital signal processing module and a microprocessor module, and the method comprises the following steps:
the microprocessor module receives an operation instruction of a user;
the microprocessor module sends the operation instruction to the digital signal processing module;
the digital signal processing module controls the logic control module to set acquisition parameters of the electromagnetic signals of the rock-soil body according to the operation instruction;
the logic control module controls the acquisition module, acquires rock-soil body electromagnetic signals according to the setting of acquisition parameters, and converts the acquired rock-soil body electromagnetic signals into digital signals from analog signals;
and the digital signal processing module processes the digital signal to obtain the parameter information of the rock-soil body electromagnetic signal.
2. The method of claim 1, further comprising:
the digital signal processing module obtains a corresponding rock-soil body state according to the parameter information;
and the digital signal processing module sends the rock-soil body state and the parameter information to the microprocessor module for display.
3. The method according to claim 1, wherein the step of processing the digital signal by the digital signal processing module to obtain the parameter information of the electromagnetic signal of the rock-soil mass comprises:
and the digital signal processing module sequentially performs time domain filtering processing, time-frequency conversion processing and frequency spectrum analysis processing on the digital signals to obtain parameter information of the rock-soil body electromagnetic signals.
4. The method according to claim 1, wherein the step of controlling the logic control module to set the acquisition parameters of the electromagnetic signals of the rock-soil mass by the digital signal processing module according to the operation instructions comprises:
the digital signal processing module controls the logic control module to generate an analog/digital conversion starting signal and a time sequence logic signal according to the operation instruction;
the logic control module controls the acquisition module, acquires rock-soil body electromagnetic signals according to the setting of acquisition parameters, and converts the acquired rock-soil body electromagnetic signals into digital signals by analog signals, and the method comprises the following steps:
the acquisition module acquires rock-soil body electromagnetic signals according to the analog/digital conversion starting signals and the sequential logic signals;
the acquisition module converts the acquired electromagnetic signals of the rock and soil mass into digital signals from analog signals.
5. The method of claim 1, further comprising:
the digital signal processing module judges whether the parameter information is abnormal or not;
under the condition that the parameter information is abnormal, the digital signal processing module generates prompt information and sends the prompt information to the microprocessor module;
and the microprocessor module receives and displays the prompt message.
6. A system for processing electromagnetic signals from a geotechnical body, the system comprising: the device comprises an acquisition module, a logic control module, a digital signal processing module and a microprocessor module;
the acquisition module, the logic control module, the digital signal processing module and the microprocessor module are in communication connection;
the acquisition module is used for acquiring rock-soil body electromagnetic signals;
the logic control module is used for controlling the acquisition module to acquire the electromagnetic signals of the rock and soil mass and caching the acquired electromagnetic signals of the rock and soil mass;
the digital signal processing module is used for processing the operation instruction sent by the microprocessor module and the rock-soil body electromagnetic signal;
and the microprocessor module is used for receiving an operation instruction of a user and displaying the rock-soil body electromagnetic signal.
7. The system of claim 6, further comprising a power module;
the power module supplies power for the acquisition module, the logic control module, the digital signal processing module and the microprocessor module.
8. The system of claim 6, wherein the acquisition module is a multi-channel synchronous acquisition module.
9. The system of claim 6, wherein the logic control module and the microprocessor module communicate via a UPP interface.
10. The system of claim 6, wherein the microprocessor module and the digital signal processing module employ CPU inter-core communication to achieve resource sharing of the digital signal processing module and the microprocessor module.
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