A downhole operation communication and positioning system based on internet of things technology

Abstract

The present application relates to the technical field of downhole communication, and particularly relates to a downhole operation communication positioning system based on Internet of Things technology, which comprises an Internet of Things communication positioning center, a communication supervision module, a deviation processing module, a positioning tracking module, a calibration supervision module and a management display module; the present application preliminarily analyzes from the angle of communication position, on the one hand, the deviation of the downhole communication position is discriminated to understand the communication position accuracy, on the other hand, it is helpful to perform communication enhancement processing on the area with poor communication quality to improve the downhole operation communication quality, and based on the information feedback mode, the communication deviation of the environmental information of the communication area is divided and analyzed, so as to adjust the current communication network according to the information feedback, and further analyze from the angle of the downhole activity track of the current operation personnel, on the one hand, whether the positioning of the current operation personnel is accurate is judged, on the other hand, it is helpful to manage according to the information feedback to achieve the effect of reducing the positioning error.

Description

Technical Field

[0001] This invention relates to the field of downhole communication technology, and in particular to a downhole operation communication and positioning system based on Internet of Things (IoT) technology. Background Technology

[0002] Due to the intricate network of mine tunnels, the high mobility of underground workers, and the constant changes in the number of personnel underground, it is essential to utilize positioning, communication, and video surveillance systems to monitor the activities of mine workers in real time and understand the safety situation underground. Among these, underground communication and positioning provide modern support for the scientific management of coal mines, and various coal mines are actively developing and applying related facilities to achieve comprehensive, intelligent, and real-time management and control.

[0003] In recent years, with the gradual strengthening of safety management, the use of wireless communication positioning systems to locate personnel underground in real time has greatly enhanced the safety of underground operations. However, the functions of various underground personnel positioning systems are relatively simple, and they cannot verify the communication location of underground workers. This is not conducive to accurately locating workers, resulting in excessive communication positioning deviations. At the same time, they cannot control regional communication based on communication quality, nor can they manage reasonable calibration cycles based on the signal strength of communication positioning, leading to excessive communication positioning risks.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an underground communication and positioning system based on Internet of Things (IoT) technology to address the aforementioned technical deficiencies. This invention initially analyzes the communication location from the perspective of communication location. On one hand, it identifies deviations in the underground communication location to understand the accuracy of the communication location; on the other hand, it helps to enhance communication in areas with poor communication quality to improve the quality of underground communication. Furthermore, based on information feedback, it analyzes the environmental information of the communication area to classify communication deviations, allowing for adjustments to the current communication network based on the feedback, thereby improving the current communication quality. Further, it analyzes the underground activity trajectory of the current workers, determining the accuracy of their positioning and facilitating management based on information feedback to reduce positioning errors. Finally, it uses a progressive approach to perform intensity matching and calibration evaluation analysis on the underground communication signal strength variation curve to reduce the interference of calibration management on communication positioning, thereby improving communication positioning accuracy and stability.

[0006] The objective of this invention can be achieved through the following technical solution: a downhole operation communication and positioning system based on Internet of Things (IoT) technology, comprising an IoT communication and positioning center, a communication monitoring module, a deviation processing module, a positioning tracking module, a calibration monitoring module, and a management display module;

[0007] The IoT communication positioning center is used to retrieve the actual underground communication location information of the current operator and send the actual underground communication location information to the communication monitoring module for communication positioning discrimination analysis to obtain normal or abnormal signals. The deviation processing module is used to perform communication deviation classification analysis on the environmental information of the collected work area, and to discriminate the obtained IoT risk value and regional influence coefficient. The output result of the IoT risk value and regional influence coefficient is the number of high interferences.

[0008] When a normal signal is generated, the positioning and tracking module is used to perform a positioning self-check analysis on the collected downhole activity trajectory to obtain a stable positioning signal or a positioning update signal. The calibration and monitoring module is used to perform intensity matching and calibration evaluation analysis on the intensity change curve of the collected downhole communication signal to obtain a shortened period signal, a stable period signal, or a calibration control signal.

[0009] Preferably, the communication positioning discrimination analysis process is as follows: the underground communication time period is collected and set as a time threshold; the actual underground communication location information of the current operator within the time threshold is obtained, including the mine number and communication depth; at the same time, the displayed underground communication location information of the current operator at the surface communication center is obtained; the actual underground communication location information is compared and analyzed with the displayed underground communication location information to obtain a deviation signal or a stable signal.

[0010] Preferably, when a stable signal is generated: the communication quality information of the current operator within the time threshold is obtained, including the number of communication interruptions and the duration of communication interruptions; the parameters in the communication quality information are processed for discrimination; the discrimination output results of the parameters in the communication quality information are obtained, including qualified and unqualified; and the number of parameters in the communication quality information whose discrimination output results are unqualified is compared and analyzed to obtain a normal signal or an abnormal signal.

[0011] Preferably, the communication deviation division analysis process is as follows: obtain the network disconnection frequency and the reconnection time corresponding to the successful reconnection after network disconnection within the time threshold, and set the product value obtained by multiplying the network disconnection frequency and the reconnection time corresponding to the successful reconnection after network disconnection as the information IoT risk value.

[0012] The environmental information of the underground work area where the current operator is located within the time threshold is obtained, the parameters in the environmental information are processed for discrimination, the discrimination results of the parameters in the environmental information are obtained, and the number of parameters in the environmental information that are classified as having high influence is set as the regional influence coefficient.

[0013] The risk value and regional impact coefficient of the Internet of Things are discriminated and processed to obtain the output results of the risk value and regional impact coefficient of the Internet of Things. The output results include low interference and high interference, and the output results of the risk value and regional impact coefficient of the Internet of Things are the number of high interference.

[0014] Preferably, the positioning self-test analysis process is as follows:

[0015] The system acquires the downhole activity trajectory of the current operator within a time threshold, and simultaneously acquires the displayed activity trajectory of the current operator at the surface communication center. It also acquires the time interval between the moment the downhole activity trajectory changes and the corresponding moment the displayed activity trajectory changes, setting this interval as the positioning delay duration. Furthermore, it acquires the corresponding positional error distance between the current operator's downhole activity trajectory and the displayed activity trajectory, and performs discrimination processing on the positioning delay duration and positional error distance: if the positioning delay duration is greater than a preset positioning delay duration threshold, or the positional error distance is greater than a preset positional error distance threshold, it is determined as a delay signal; if the positioning delay duration is less than or equal to the preset positioning delay duration threshold, and the positional error distance is less than or equal to the preset positional error distance threshold, it is determined as an accurate signal.

[0016] Preferably, the number of delay signals generated during the current worker's downhole period is obtained, where the downhole period represents the time between the worker's downhole entry and exit. The number of delay signals generated during the current worker's downhole period is then processed to obtain a positioning stability signal or a positioning update signal.

[0017] Preferably, the intensity matching and calibration evaluation and analysis process is as follows: Obtain the downhole communication signal intensity change curve of the current operator within the time threshold; obtain the maximum peak value and minimum trough value from the downhole communication signal intensity change curve; construct the signal intensity interval A based on the maximum peak value and minimum trough value; simultaneously obtain the optimal set signal intensity interval B; compare the signal intensity interval A with the optimal set signal intensity interval B; if the signal intensity interval A is not included in the optimal set signal intensity interval B, then a fluctuating signal is generated; if the signal intensity interval A is included in the optimal set signal intensity interval B, then a steady-state signal is generated.

[0018] Preferably, the average historical calibration interval duration of downhole communication is obtained, and the average historical calibration interval duration is processed for discrimination. If the average historical calibration interval duration is less than the preset average historical calibration interval duration threshold, a calibration qualified signal is generated. If the average historical calibration interval duration is greater than or equal to the preset average historical calibration interval duration threshold, a calibration unqualified signal is generated.

[0019] Interactive analysis is performed on fluctuation signals, steady-state signals, calibration qualified signals, and calibration unqualified signals to obtain period shortening signals, period stable signals, or calibration control signals.

[0020] The beneficial effects of this invention are as follows:

[0021] (1) This invention initially analyzes from the perspective of communication location. On the one hand, it makes deviation judgment on the communication location in the well to understand the accuracy of the communication location. On the other hand, it helps to enhance the communication in areas with poor communication quality to improve the communication quality of the well operation. Based on the information feedback method, it analyzes the environmental information of the communication area to divide the communication deviation, so as to adjust the current communication network according to the information feedback to improve the current communication quality.

[0022] (2) By analyzing the current personnel’s downhole activity trajectory, we can determine whether the current personnel’s positioning is accurate. On the other hand, it helps to manage based on information feedback, so as to reduce positioning errors. By performing intensity matching and calibration evaluation analysis on the downhole communication signal strength change curve in a progressive manner, we can reduce the interference of calibration management on communication positioning, so as to improve the accuracy and stability of communication positioning. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings;

[0024] Figure 1 This is a flowchart of the system of the present invention;

[0025] Figure 2 This is a partial analysis reference diagram of the present invention. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1:

[0028] Please see Figures 1 to 2As shown, the present invention is an underground operation communication and positioning system based on Internet of Things (IoT) technology, including an IoT communication positioning center, a communication monitoring module, a deviation processing module, a positioning tracking module, a calibration monitoring module, and a management display module. The IoT communication positioning center and the communication monitoring module have a one-way communication connection. The communication monitoring module has a one-way communication connection with the deviation processing module, the positioning tracking module, and the calibration monitoring module. The positioning tracking module has a one-way communication connection with the calibration monitoring module and the management display module. The deviation processing module has a one-way communication connection with the management display module. The calibration monitoring module has a one-way communication connection with the management display module.

[0029] The IoT communication positioning center is used to retrieve the actual underground communication location information of the current workers and send it to the communication monitoring module. Upon receiving the actual underground communication location information, the communication monitoring module immediately performs communication positioning discrimination analysis. On the one hand, it judges the deviation of the underground communication location to understand the accuracy of the communication location. On the other hand, it helps to perform communication enhancement processing on areas with poor communication quality to improve the communication quality of underground operations. The specific communication positioning discrimination analysis process is as follows: The underground communication time period is collected and set as a time threshold. The actual underground communication location information of the current workers within the time threshold is obtained. The actual underground communication location information includes the mine number, communication depth, etc. At the same time, the displayed underground communication location information of the current workers at the surface communication center is obtained. The actual underground communication location information is compared and analyzed with the displayed underground communication location information. If there is a deviation between the actual underground communication location information and the displayed underground communication location information, a deviation signal is generated. If there is no deviation between the actual underground communication location information and the displayed underground communication location information, a stable signal is generated.

[0030] When a stable signal is generated: the communication quality information of the current operator within the time threshold is obtained, including the number of communication interruptions and the duration of the interruptions. The parameters in the communication quality information are processed for discrimination, and the discrimination output results are obtained. The discrimination output results include qualified and unqualified. The number of unqualified parameters in the communication quality information is compared and analyzed. If the number of unqualified parameters in the communication quality information is 0, a normal signal is generated. If the number of unqualified parameters in the communication quality information is not equal to 0, an abnormal signal is generated. The normal signal or abnormal signal is sent to the management display module. After receiving the normal signal or abnormal signal, the management display module marks the downhole communication position corresponding to the normal signal in green on the display panel and the downhole communication position corresponding to the abnormal signal in red on the display panel. This allows the user to understand the location of the current communication signal difference based on the display, and then enhance the signal at the location of the communication signal difference to ensure the stability of communication positioning in the downhole operation area.

[0031] When a deviation signal or abnormal signal is generated: the deviation processing module collects environmental information of the work area and performs communication deviation segmentation analysis on the environmental information. Based on the feedback, the current communication network is adjusted to improve the current communication signal strength while ensuring the current communication quality. The specific communication deviation segmentation analysis process is as follows:

[0032] The frequency of network disconnection for the current operator within the time threshold is obtained, and the reconnection time after a network disconnection is also obtained. The product of the network disconnection frequency and the reconnection time is set as the information IoT risk value. The analysis is performed from the perspective of the communication network in order to manage the current communication network and reduce the current communication positioning error rate.

[0033] The system acquires environmental information about the underground work area where the current operator is located within a time threshold. This information includes electromagnetic interference values ​​and temperature values. The system then performs discrimination processing on the parameters in the environmental information and obtains the discrimination results, which are categorized as low-impact or high-impact. The number of parameters with high-impact results is set as the regional impact coefficient. The system also analyzes the communication environment to improve the reliability of the current management plan and the comprehensiveness of the data analysis.

[0034] The system performs discrimination processing on the IoT risk value and regional impact coefficient, obtaining the output results of the IoT risk value and regional impact coefficient. The output results include low interference and high interference. The number of high interference cases is obtained from the output results of the IoT risk value and regional impact coefficient and sent to the management display module. After receiving the number of high interference cases from the output results of the IoT risk value and regional impact coefficient, the management display module immediately displays the corresponding number. The larger the number of high interference cases in the output results of the IoT risk value and regional impact coefficient, the higher the adjustment requirement and the higher the adjustment level. This is to adjust the current communication network based on information feedback to improve the current communication signal strength and ensure the current communication quality.

[0035] Example 2:

[0036] When a normal signal is generated: The positioning and tracking module is used to collect the downhole activity trajectory of the current operator and perform a positioning self-check analysis on the downhole activity trajectory. On the one hand, it determines whether the positioning of the current operator is accurate, and on the other hand, it helps to manage based on information feedback, so as to reduce positioning errors. The specific positioning self-check analysis process is as follows: Obtain the downhole activity trajectory of the current operator within the time threshold, and at the same time obtain the displayed activity trajectory of the current operator at the surface communication center. Obtain the time between the time when the downhole activity trajectory changes and the time when the corresponding change in the displayed activity trajectory changes, and set it as the positioning delay time. At the same time, obtain the corresponding position error distance between the downhole activity trajectory and the displayed activity trajectory of the current operator, and perform discrimination processing on the positioning delay time and position error distance: If the positioning delay time is greater than the preset positioning delay time threshold, or the position error distance is greater than the preset position error distance threshold, it is determined to be a delay signal. If the positioning delay time is less than or equal to the preset positioning delay time threshold, and the position error distance is less than or equal to the preset position error distance threshold, it is determined to be an accurate signal.

[0037] The system obtains the number of delay signals generated during the current worker's downhole period, where the downhole period represents the time between the worker's downhole entry and exit. The system then performs a discrimination process on the number of delay signals generated during this downhole period.

[0038] If the number of delay signals generated during the current operator's downhole period is less than or equal to a preset threshold, a positioning stability signal is generated.

[0039] If the number of delay signals generated during the current downhole operation exceeds a preset threshold, a positioning update signal is generated. The positioning stabilization signal or positioning update signal is then sent to the management display module. Upon receiving the positioning stabilization signal or positioning update signal, the management display module immediately displays the preset warning text corresponding to the positioning stabilization signal or positioning update signal, so as to adjust the current positioning plan based on the information feedback, thereby reducing positioning errors.

[0040] When normal signals and stable positioning signals are generated, the calibration monitoring module is used to collect the downhole communication signal strength variation curve and perform strength matching and calibration evaluation analysis on the downhole communication signal strength variation curve to reduce the interference of calibration management on communication positioning and improve the accuracy and stability of communication positioning. The specific strength matching and calibration evaluation analysis process is as follows: Obtain the downhole communication signal strength variation curve of the current operator within the time threshold, obtain the maximum peak value and minimum trough value from the downhole communication signal strength variation curve, construct the signal strength interval A based on the maximum peak value and minimum trough value, and obtain the optimal set signal strength interval B at the same time. Compare the signal strength interval A with the optimal set signal strength interval B. If the signal strength interval A is not included in the optimal set signal strength interval B, a fluctuating signal is generated. If the signal strength interval A is included in the optimal set signal strength interval B, a steady-state signal is generated.

[0041] The average historical calibration interval duration of downhole communication is obtained, and the average historical calibration interval duration is processed for discrimination. If the average historical calibration interval duration is less than the preset average historical calibration interval duration threshold, a calibration qualified signal is generated. If the average historical calibration interval duration is greater than or equal to the preset average historical calibration interval duration threshold, a calibration unqualified signal is generated.

[0042] Interactive analysis of fluctuation signals, steady-state signals, calibration pass signals, and calibration fail signals:

[0043] If a fluctuation signal and a calibration pass signal are generated, a period shortening signal is obtained;

[0044] If a steady-state signal and a calibration pass signal are generated, then a periodically stable signal is generated;

[0045] If a fluctuation signal, a calibration failure signal, or a steady-state signal or a calibration failure signal is generated, a calibration control signal is generated. The cycle shortening signal, the cycle stabilization signal, and the calibration control signal are sent to the management display module. After receiving the cycle shortening signal, the cycle stabilization signal, and the calibration control signal, the management display module controls the calibration cycle based on the information feedback to reduce the interference of calibration management on communication positioning and improve the accuracy and stability of communication positioning.

[0046] In summary, this invention initially analyzes the communication location from the perspective of communication location. On the one hand, it identifies deviations in downhole communication location to understand the accuracy of communication location; on the other hand, it helps to enhance communication in areas with poor communication quality to improve the quality of communication during downhole operations. Furthermore, it analyzes the environmental information of the communication area based on information feedback to classify and analyze communication deviations, allowing for adjustments to the current communication network based on feedback to improve current communication quality. Further, it analyzes the downhole activity trajectory of the current workers, determining the accuracy of their positioning and facilitating management based on information feedback to reduce positioning errors. Finally, it uses a progressive approach to perform intensity matching and calibration evaluation analysis on the downhole communication signal strength variation curve to reduce the interference of calibration management on communication positioning, thereby improving communication positioning accuracy and stability.

[0047] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by those skilled in the art for each set of sample data; as long as it does not affect the ratio between the parameter and the quantized value, it is acceptable.

[0048] The size of the coefficient is a specific value obtained by quantifying each parameter to facilitate subsequent comparison. The size of the coefficient depends on the amount of sample data and the corresponding operating coefficient initially set by those skilled in the art for each set of sample data; as long as it does not affect the proportional relationship between the parameter and the quantified value.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A downhole operation communication and positioning system based on Internet of Things (IoT) technology, characterized in that, It includes an IoT communication positioning center, a communication monitoring module, a deviation processing module, a positioning tracking module, a calibration monitoring module, and a management display module; The IoT communication positioning center is used to retrieve the actual underground communication location information of the current operator and send the actual underground communication location information to the communication monitoring module for communication positioning discrimination and analysis to obtain normal or abnormal signals. When a deviation signal or abnormal signal is generated: the deviation processing module is used to perform communication deviation classification analysis on the environmental information of the collected work area, and to discriminate the obtained information IoT risk value and regional influence coefficient. The output result of the information IoT risk value and regional influence coefficient is the number of high interferences. When a normal signal is generated, the positioning and tracking module is used to perform a positioning self-check analysis on the collected downhole activity trajectory to obtain a positioning stability signal or a positioning update signal. The calibration and monitoring module is used to perform intensity matching and calibration evaluation analysis on the intensity change curve of the collected downhole communication signal to obtain a period shortening signal, a period stable signal, or a calibration control signal. The communication positioning discrimination and analysis process is as follows: the underground communication time period is collected and set as a time threshold. The actual underground communication location information of the current operator within the time threshold is obtained. The actual underground communication location information includes the mine number and communication depth. At the same time, the displayed underground communication location information of the current operator at the surface communication center is obtained. The actual underground communication location information and the displayed underground communication location information are compared and analyzed to obtain the deviation signal or the stable signal. When a stable signal is generated: the communication quality information of the current operator within the time threshold is obtained. The communication quality information includes the number of communication interruptions and the duration of communication interruptions. The parameters in the communication quality information are processed for discrimination, and the discrimination output results of the parameters in the communication quality information are obtained. The discrimination output results include qualified and unqualified. The number of parameters in the communication quality information with unqualified discrimination output results is compared and analyzed to obtain a normal signal or an abnormal signal. The communication deviation classification and analysis process is as follows: Obtain the network disconnection frequency and the reconnection time corresponding to the successful reconnection after network disconnection within the time threshold. Multiply the corresponding values ​​of the network disconnection frequency and the reconnection time corresponding to the successful reconnection after network disconnection and set the product value as the information IoT risk value. The environmental information of the underground work area where the current operator is located within the time threshold is obtained, the parameters in the environmental information are processed for discrimination, the discrimination results of the parameters in the environmental information are obtained, and the number of parameters in the environmental information that are classified as having high influence is set as the regional influence coefficient. The risk value and regional impact coefficient of the Internet of Things are discriminated and processed to obtain the output results of the risk value and regional impact coefficient of the Internet of Things. The output results include low interference and high interference, and the output results of the risk value and regional impact coefficient of the Internet of Things are the number of high interference.

2. The downhole operation communication and positioning system based on Internet of Things technology according to claim 1, characterized in that, The positioning self-test analysis process is as follows: The system acquires the downhole activity trajectory of the current operator within a time threshold, and simultaneously acquires the displayed activity trajectory of the current operator at the surface communication center. It also acquires the time interval between the moment the downhole activity trajectory changes and the corresponding moment the displayed activity trajectory changes, setting this interval as the positioning delay duration. Furthermore, it acquires the corresponding positional error distance between the current operator's downhole activity trajectory and the displayed activity trajectory, and performs discrimination processing on the positioning delay duration and positional error distance: if the positioning delay duration is greater than a preset positioning delay duration threshold, or the positional error distance is greater than a preset positional error distance threshold, it is determined as a delay signal; if the positioning delay duration is less than or equal to the preset positioning delay duration threshold, and the positional error distance is less than or equal to the preset positional error distance threshold, it is determined as an accurate signal.

3. The downhole operation communication and positioning system based on Internet of Things technology according to claim 2, characterized in that, The system obtains the number of delay signals generated during the current worker's downhole period, where the downhole period represents the time between the worker's downhole entry and exit. The system then processes the number of delay signals generated during the downhole period to obtain a stable positioning signal or a positioning update signal.

4. The downhole operation communication and positioning system based on Internet of Things technology according to claim 1, characterized in that, The intensity matching and calibration evaluation and analysis process is as follows: Obtain the downhole communication signal intensity change curve of the current operator within the time threshold, obtain the maximum peak value and minimum trough value from the downhole communication signal intensity change curve, construct the signal intensity interval A based on the maximum peak value and minimum trough value, and simultaneously obtain the optimal set signal intensity interval B. Compare the signal intensity interval A with the optimal set signal intensity interval B. If the signal intensity interval A is not contained within the optimal set signal intensity interval B, a fluctuating signal is generated. If the signal intensity interval A is contained within the optimal set signal intensity interval B, a steady-state signal is generated.

5. A downhole operation communication and positioning system based on Internet of Things technology according to claim 4, characterized in that, The average historical calibration interval duration of downhole communication is obtained, and the average historical calibration interval duration is processed for discrimination. If the average historical calibration interval duration is less than the preset average historical calibration interval duration threshold, a calibration qualified signal is generated. If the average historical calibration interval duration is greater than or equal to the preset average historical calibration interval duration threshold, a calibration unqualified signal is generated. Interactive analysis is performed on fluctuation signals, steady-state signals, calibration qualified signals, and calibration unqualified signals to obtain period shortening signals, period stable signals, or calibration control signals.

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