WO2021253869A1

WO2021253869A1 - Subsidence early warning method and system, terminal device, and storage medium

Info

Publication number: WO2021253869A1
Application number: PCT/CN2021/078460
Authority: WO
Inventors: 杨迪琨
Original assignee: 南方科技大学
Priority date: 2020-06-17
Filing date: 2021-03-01
Publication date: 2021-12-23
Also published as: CN111856588B; CN111856588A

Abstract

A subsidence early warning method, comprising: according to a preset policy, controlling a plurality of electrode pairs pre-arranged in a monitored road section to sequentially transmit a current in a target time period; acquiring potential difference data corresponding to the plurality of electrode pairs detected by a reference electrode pair on the basis of the transmitted current in the target time period to obtain a plurality of potential difference data sets; and, if a target electrode pair is determined on the basis of the plurality of potential difference data sets, then implementing subsidence early warning on the basis of position information of the target electrode pair in the monitored road section. The present method is applicable to the technical field of monitoring, and can solve the problem of being unable to implement continuous monitoring and emergency early warning due to existing means for monitoring road conditions being insufficient. Also comprising a subsidence early warning system, a terminal device, and a storage medium.

Description

Ground subsidence early warning method, system, terminal equipment and storage medium

This application claims the priority of the Chinese patent application with application number 202010552509.2 filed at the Chinese Patent Office on June 17, 2020, the entire content of which is incorporated into this application by reference.

Technical field

This application belongs to the field of monitoring technology, and in particular relates to a ground subsidence early warning method, system, terminal device and storage medium.

Background technique

With the development of society, the roads now extend in all directions, which not only promotes economic prosperity, but also brings convenience and speed to people's travel. However, due to the increase in road transportation, pipeline laying, excessive precipitation and soil erosion, etc., road collapses often occur. Therefore, in order to give early warning of road collapse, it is mainly based on the way of man-made later detection to obtain the road condition, so as to make the road collapse warning based on the detection situation.

At present, the most frequently used man-made later detection method is to use ground penetrating radar to detect the space under the road. However, the off time period between repeated observations when the detection radar is used for ground collapse monitoring is too long. For large and medium-sized cities, the same road may only be measured once or twice a year, and huge holes that may cause ground collapse may be formed within a few weeks or days. Therefore, ground penetrating radar can only detect road diseases with a long evolutionary cycle, and its ability to predict the imminent ground collapse is limited. Moreover, because the ground penetrating radar antenna has extremely strong directivity, it is only sensitive to objects below the antenna. When encountering a wide road, it needs to be repeatedly measured for coverage, and it is sensitive to the side holes that are not directly under the detection radar antenna. Lower.

It can be seen that although the penetrating radar is the most effective non-invasive detection method for solving road diseases so far, the man-made later detection method still cannot meet the functions of continuous monitoring of urban road ground collapse and emergency warning.

technical problem

The embodiments of the present application provide a ground subsidence early warning method, system, terminal device, and storage medium to solve the problem of insufficient existing road condition monitoring methods, resulting in the inability to perform continuous monitoring and emergency early warning.

Technical solutions

In the first aspect, an embodiment of the present application provides a ground subsidence early warning method, the method including:

According to the preset strategy, control the pre-set groups of electrode pairs in the monitored road section to sequentially emit current within the target time period;

Acquiring multiple groups of the electrode pairs corresponding to the reference electrode pairs within the target time period, based on the potential difference data detected by the emitted current, to obtain multiple groups of potential difference data sets;

If a target electrode pair is determined based on multiple sets of the potential difference data sets, a ground subsidence warning is performed based on the position information of the target electrode pair in the monitored road section.

Using the ground subsidence early warning method provided by the present application, according to a preset strategy, multiple sets of electrodes pre-equipped in the monitored road section are controlled to sequentially emit current within the target time period, the monitored road section is monitored, and multiple sets of the In the target time period, the reference electrode pair corresponding to the electrode pair obtains multiple sets of potential difference data based on the potential difference data detected by the emitted current. If there is more change based on the multiple sets of potential difference data sets For large potential data, it is determined that there is a hole under the ground of the monitored road section, and ground subsidence may occur in the ground area where the hole exists, and the corresponding target electrode pair is further determined based on the greatly changed potential data. The target electrode performs ground subsidence warning on the position information in the monitored road section, so as to realize emergency warning to avoid the occurrence of major accidents.

In the second aspect, an embodiment of the present application provides a ground subsidence early warning system, which includes:

The control module is used to control the pre-set groups of electrode pairs in the monitored road section to sequentially emit current within the target time period according to a preset strategy;

An obtaining module, configured to obtain multiple sets of potential difference data sets based on the detected potential difference data of the emitted current based on the detected potential difference data of the reference electrode pairs corresponding to the multiple groups of the electrode pairs in the target time period;

The early warning module is configured to, if a target electrode pair is determined based on multiple sets of the potential difference data sets, perform a ground subsidence warning based on the position information of the target electrode pair in the monitored road section.

In the third aspect, an embodiment of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, Realize the described land subsidence early warning method.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the ground-trap warning method.

In the fifth aspect, the embodiments of the present application provide a computer program product that, when the computer program product runs on a terminal device, causes the terminal device to execute the ground subsidence early warning method described in any one of the above-mentioned first aspects.

It can be understood that, for the beneficial effects of the second aspect to the fifth aspect described above, reference may be made to the relevant description in the first aspect described above, which will not be repeated here.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings needed in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only for the present application. For some embodiments, those of ordinary skill in the art can obtain other drawings based on these drawings without creative labor.

FIG. 1 is a schematic diagram of an application environment of a land subsidence early warning method provided by an embodiment of the present application;

2 is a schematic diagram of the structure of an electrode control unit provided by an embodiment of the present application;

3 is a schematic flowchart of a method for early warning of ground subsidence provided by an embodiment of the present application;

4 is a schematic diagram of calculating potential difference data in a ground subsidence warning method provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of a ground subsidence early warning system provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a terminal device provided by another embodiment of the present application.

Embodiments of the present invention

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are proposed for a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obstructing the description of this application.

As used in the description of this application and the appended claims, the term "if" can be construed as "when" or "once" or "in response to determination" or "in response to detecting ". Similarly, the phrase "if determined" or "if detected [described condition or event]" can be interpreted as meaning "once determined" or "in response to determination" or "once detected [described condition or event]" depending on the context ]" or "in response to detection of [condition or event described]".

In addition, in the description of the specification of this application and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

The reference to "one embodiment" or "some embodiments" described in the specification of this application means that one or more embodiments of this application include a specific feature, structure, or characteristic described in combination with the embodiment. Therefore, the sentences "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification are not necessarily All refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "including", "including", "having" and their variations all mean "including but not limited to" unless otherwise specifically emphasized.

In order to illustrate the technical solution described in the present application, specific embodiments are used for description below.

Please refer to FIG. 1, which is an overall structure diagram of a monitored road section environment when a terminal device connected to an electrode control unit (ECU) provided in an embodiment of the present application performs a ground subsidence warning. In the monitored road section, along the edge of the road, an electrode is buried according to a preset distance (for example, 2 meters), and the electrodes are connected to each other by cables. As shown in Figure 1, each of several (such as 11) electrodes is a group of independent electrode control units connected by a cable. The electrodes controlled by a plurality of electrode control units are arranged alternately along the side of the road, or the electrodes controlled by each electrode control unit are arranged end-to-end and arranged continuously along the side of the road to form a distributed roadside electrode array.

Among them, refer to FIG. 2, which is a schematic diagram of the structure of the electrode control unit. The electrode control unit includes a communication module, an electrode scheduling module, an electrode switching module, and a data recording and processing module. The communication module is configured to receive control instructions and data output sent by the terminal device based on a wireless or wired network, and when an external control instruction is received, at the same time receive a timing signal to align the internal clock of the electrode control unit. The electrode scheduling module is used to generate transmission and measurement time sequence commands according to the received control command information and input them to the electrode switching module. The electrode switching module realizes the switching of the transmission and measurement functions of several electrodes connected to it. The data recording and processing module is used for filtering, superimposing, down-sampling, and compressing the monitoring data acquired by the measurement electrode monitoring when multiple sets of electrode pairs preset in the monitored road section sequentially emit current within the target time period Operate to form a data packet that is convenient for network transmission and output via the communication module.

Please refer to FIG. 3, which is a schematic flowchart of a ground subsidence warning method provided by an embodiment of the present application. The execution body of the ground trap warning method in this embodiment is the terminal device connected to the ECU, and the ECU may be installed in the terminal device and connected to the terminal device, or connected to the terminal device through a wireless or wired network. , Specifically, it can be a computer device connected to the ECU. As shown in Figure 3, the land subsidence early warning method of the present application may include:

S101: According to a preset strategy, control multiple groups of electrode pairs preset in the monitored road section to sequentially emit current within a target time period.

In step S101, the terminal device obtains the preset strategy according to the instruction for detecting the monitored road section, and controls the preset strategy to control the set of electrode pairs in the monitored road section to be at the target time according to the preset strategy. Current emission is carried out in sequence within the segment.

The preset strategy is used to describe the sequence or method of controlling multiple groups of electrode pairs to perform current emission within a target time period.

The target time period is the longest period of time that is consumed by sequentially controlling the first set of electrode pairs preset in the monitored road section to perform current emission to the last set of electrode pairs performing current emission according to a large number of experiments.

It is worth noting that when one electrode is used as the positive electrode of the power supply for current emission, the other electrodes in the monitored section are all used as measuring electrodes. When the electrode of the positive electrode of the power supply emits current, the potential value at its position is measured at the same time. Wherein, the negative terminal of the positive electrode of the power supply is connected to the earth through the ground (GND) terminal at a position far enough from the positive electrode. When the positive electrode of the power supply is transmitting current, if there is a hole in the monitoring section, the hole caused The contact interface between the air and the soil will accumulate charge, which will produce an abnormal potential effect. The reference electrode corresponding to the positive pole of the power supply measures its own potential value when the abnormal potential effect occurs, and calculates the potential difference data through the potential value to obtain the potential difference The change of the data indicates whether there is a growing cavity under the ground of the monitored road section.

According to the preset strategy, when the terminal device receives a detection instruction to start detection of the monitored road section, it determines the start detection point of the monitored road section and the corresponding electrode pair that starts current transmission, so as to perform current transmission according to the multiple The number information of the group of electrode pairs is polled within the target time period as the positive electrode of the power supply for current transmission, and then the monitoring of the monitored road section is realized based on the transmitted current. Specifically, when a part of the ground of the monitored road section forms a cavity under the part of the ground due to increased road traffic, pipeline laying, excessive precipitation, and soil erosion, the cavity forms a soil-air interface. When the power electrode emits current Therefore, after applying an external electric field to the interface, the interface charge will accumulate. This charge causes the potential value measured on the ground to be abnormal. When the electrode is measured based on the potential abnormal effect caused by the current emitted by the positive electrode of the power supply, the corresponding potential value is detected and then calculated Get the corresponding potential difference. Based on the greatly changed potential difference data, it is determined that there are holes under the ground of the monitored road section, and the ground area where the holes exist may sink, and the corresponding target electrode is further determined based on the greatly changed potential data Yes, according to the target electrode, the ground subsidence warning is performed on the position information in the monitored road section to realize an emergency warning to avoid the occurrence of major accidents.

As a possible implementation manner of this embodiment, each group of the electrode pairs includes a first electrode and a second electrode. There is an overlap area between the current coverage area of the first electrode and the current coverage area of the second electrode in the monitored road section.

The current coverage area is the area affected by the electric field caused by the current when the electrode is used as the positive electrode of the power source to emit current. When there is a cavity in the monitored road section, the electric field will cause the charge to accumulate at the interface formed by the cavity and the soil.

Each group of the electrode pairs includes a first electrode and a second electrode, and each of the first electrode and the second electrode in the monitored section has a unique electrode number. For example, the AB electrode pair includes the first electrode and the second electrode. An electrode A and a second electrode B, the number of the A electrode is 01, and the number of the B electrode is 02.

For example, in conjunction with FIG. 4, when the terminal device receives the detection instruction, it determines the starting detection point of the monitored road section according to the detection instruction, such as determining that point A is the starting detection point, and at the same time determining the corresponding start of current transmission The electrode pair of is an AB electrode pair, and the number information of the A electrode is 01, and the number information of the B electrode is 02. After determining the starting detection point, the terminal device starts to control the electrode pairs to sequentially perform current emission according to the number information of the multiple groups of electrode pairs. For example, after the electrode control unit connected to the A electrode receives the control information of the terminal device, the electrode switching module in the electrode control unit switches the emission and measurement functions of the A electrode, that is, connects the positive terminal of the transmitting power supply To the A electrode, the function of the A electrode is switched to the transmitting function, so as to perform current transmission outwards. At this time, other electrodes preset in the monitored road section are used as measuring electrodes. After the A electrode emits current to the outside, the terminal device controls the electrode control unit connected to the B electrode to switch the emission and measurement functions of the B electrode according to the preset strategy, that is, connect the positive terminal of the transmitting power supply to the B electrode. The electrode switches the function of the B electrode to the transmitting function, so as to perform current transmission outwards. At this time, other electrodes preset in the monitored road section are used as measuring electrodes. By analogy, multiple sets of electrode pairs sequentially emit current within the target time period.

When the electrode in the monitored section is used as the measuring electrode, the grounding terminal is used as the reference point to measure its own potential value and record the full waveform data. When the positive electrode of the transmitting power supply rotates in the monitored section, some electrode control units may have a bye, and all the electrodes connected to it only measure potential data and do not perform any current transmission. The waveform of the sending current is generally a positive and negative square wave with a 50% duty cycle.

In an example, the preset strategy is that when the terminal device receives a detection instruction to start detection of the monitored road section, it determines the start detection point of the monitored road section and the corresponding electrode pair that starts current transmission. In a clockwise or counterclockwise direction with the monitored road section as a reference, a plurality of groups of electrodes preset in the monitored road section are polled and controlled in a target time period to sequentially emit current.

When the terminal device acquires the number information of multiple sets of electrode pairs preset in the monitored road section according to the start detection instruction for ground subsidence detection on the monitored road section, and obtains according to the preset strategy and the number information The preset multiple sets of electrode pairs in the monitored road segment are used as the positive electrode to emit current emission sequence list during the target time period, and the multiple sets of electrode pairs preset in the monitored road segment are controlled to be in the target time period according to the transmission sequence list. The current emission is carried out in sequence.

The terminal device sends the transmission sequence list to all the electrode control units in the monitored road section, and the electrode forms a time sequence command in the control unit to control the transmission and measurement of the electrodes connected to it, and according to the The time sequence command controls the electrode connected to it to detect the monitored road section.

In an example, when any one of the electrode pairs in the plurality of groups of electrode pairs performs current emission, the first electrode and the second electrode of the group of the electrode pairs perform current emission in sequence.

For example, with reference to FIG. 4, there are AB electrode pairs, EH electrode pairs, and FG electrode pairs in the monitored road section. For example, when the AB electrode pair conducts current emission, the A electrode and the B electrode in the AB electrode pair conduct current emission in turn, and when any electrode in the electrode pair conducts current emission, the other electrode and the other electrode in the monitored section , Such as E electrode, H electrode, F electrode, G electrode, etc. as measuring electrodes, when the A electrode and B electrode in the AB electrode pair are measured in sequence, the accumulated charge caused by the emitted current is at the position of the measuring electrode itself. Resulting potential value, and record the full waveform data of the current.

S102: Obtain multiple sets of potential difference data detected based on the emitted current of the reference electrode pairs within the target time period, and obtain multiple sets of potential difference data sets.

In step S102, the reference electrode pair is a measurement electrode pair when the selected corresponding electrode pair among the electrodes preset in the monitored road section emits current. By measuring the potential data at the position of the electrode pair itself, in order to calculate the potential difference data between them and the corresponding potential difference data set, and use the chronological changes of the potential difference data data set to characterize the phase The degree of abnormality and abnormality in the monitored road section between the corresponding electrode pairs.

The reference electrode pair includes a first reference electrode and a second reference electrode.

The potential difference data is that when the first electrode and the second electrode of the electrode pair corresponding to the reference electrode pair respectively perform current emission, the first electrode and the second reference electrode perform current transmission on the first electrode respectively. When the current is emitted, the accumulated electric charge at the position of oneself measured based on the accumulation of the electric charge caused by the emission of the electric current and the corresponding potential value of the electric current at the second electrode are respectively based on the electric current emitted when the electric current is emitted at the second electrode. The potential value of the potential value corresponding to the position of the accumulated charge measured at its own position and the calculated potential difference value.

The potential difference data set includes the potential difference corresponding to the reference electrode pair of each electrode pair in the plurality of electrode pairs when the multiple sets of electrode pairs in the monitored road section sequentially perform current emission within the target time period data.

As an embodiment of the present application, the acquiring the potential difference data detected based on the emitted current of the reference electrode pairs corresponding to the multiple groups of the electrode pairs in the target time period includes:

Acquire the first potential value of the first reference electrode and the second potential value of the second reference electrode when the first electrode performs current emission in the target time period.

Acquiring the third potential value of the first reference electrode and the fourth potential value of the second reference electrode when the second electrode performs current emission in the target time period.

Based on the first potential value, the second potential value, the third potential value, and the fourth potential value, the potential difference of the reference electrode pair corresponding to the electrode pair in the target time period is calculated data.

Wherein, the first potential value is the potential value corresponding to the accumulated charge at its own location measured by the first reference electrode based on the charge accumulation caused by the current emitted by the first electrode.

The second potential value is a potential value corresponding to the accumulated charge at its own location measured by the second reference electrode based on the charge accumulation caused by the current emitted by the first electrode.

The third potential value is a potential value corresponding to the accumulated charge at its own location measured by the first reference electrode based on the charge accumulation caused by the current emitted by the second electrode.

The fourth potential value is a potential value corresponding to the accumulated charge at its own location measured by the second reference electrode based on the charge accumulation caused by the current emitted by the second electrode.

As an embodiment of the present application, the reference electrode pair corresponding to the electrode pair is calculated based on the first potential value, the second potential value, the third potential value, and the fourth potential value. The potential difference data in the target time period includes:

Calculate the potential difference data by the following formula,

K=｜(M1+(－M2))－(N1+(－N2))｜

Wherein, K represents the potential difference data; M1 represents the first potential value; M2 represents the third potential value; N1 represents the second potential value; N2 represents the fourth potential value.

For example, with reference to FIG. 4, the reference electrode pairs corresponding to the AB electrode pairs in the monitored road section are the M electrode and the N electrode. According to the preset strategy, the terminal device controls the A electrode and the B electrode to emit current in sequence. Wherein, when the A electrode is connected to the positive electrode of the emission power supply for current emission, the potential value corresponding to the accumulated charge at its position measured by the M electrode based on the charge accumulation caused by the emission of the current is M1, and the potential value measured by the N electrode Based on the charge accumulation caused by the emission of the current, the potential value corresponding to the accumulated charge measured at the position of the self is N1. When the current emission of the A electrode ends, the terminal device controls the connection of the B electrode When the electronic control unit connects the B electrode to the positive electrode of the emission power supply for current emission, the M electrode measures the potential value corresponding to the accumulated charge at its position based on the charge accumulation caused by the emission of the current is M2, The potential value corresponding to the accumulated electric charge at the position of the N electrode measured based on the electric charge accumulation caused by the emitted current is N2. The terminal device substitutes its own potential values M1, M2, N1, and N2, which are measured by the M electrode and the N electrode at the A electrode and the B electrode, into the calculation formula to calculate the potential difference K. The potential difference K It is used to equivalently indicate the potential difference between M and N when the positive pole is supplied at A and the negative pole is supplied at B. The potential difference between M and N is calculated according to the measured potential values at M and N respectively. By analogy, the potential difference data of the reference electrode pair corresponding to each group of electrode pairs in the multiple groups of electrode pairs in the monitored road section is obtained in the target time period.

S103: If a target electrode pair is determined based on multiple sets of the potential difference data sets, perform a ground subsidence warning based on the position information of the target electrode pair in the monitored road section.

In step S103, the position information includes one or more of the number information of the electrode pair, the position of the overlapping area corresponding to the electrode pair, and the geographic location of the electrode pair.

In the actual monitored road section, due to the increase in road traffic, pipeline laying, excessive precipitation and soil erosion, there may be cavities under the ground of the road section, and when the underground is filled with air When the cavity gradually expands upward and to the surrounding, the conductor properties between the electrode pairs change due to the cavity, which further leads to a more obvious change in the potential difference between the electrode pairs.

As shown in Figure 4, the AB electrode pair has a hole in the overlap area of the monitored road section. In the initial stage of the hole formation, when the corresponding potential difference is compared with the historical potential difference data, the potential difference between them rises. The speed gradually increases, indicating that the underground cavity has been in contact with the ground surface in a large area and may collapse at any time. The system can issue a corresponding level of alarm. The potential difference between the AB electrode pair and the reference electrode pair and the MN electrode pair will also change in this way. . Therefore, the target electrode pair can be determined based on the reference electrode pair whose potential difference changes. For the electrode pairs in the monitored section, such as the EH electrode pair and the FG electrode pair, there are no holes under the ground in the overlap area between them, and the potential difference does not change or the change range is small. The corresponding reference electrode The potential difference will not change much.

As an embodiment of the present application, if a target electrode pair is determined based on multiple sets of the potential difference data sets, performing a ground subsidence warning based on the position information of the target electrode pair in the monitored road section includes:

Obtain the historical data set corresponding to each group of the potential difference data set.

If the potential difference data in the potential difference data set gradually increases over time compared with the potential difference data in the historical data set, then the target reference electrode corresponding to the potential difference data set is determined.

The electrode pair corresponding to the target reference electrode is identified as the target electrode pair.

Based on the target electrode, a ground subsidence warning is performed on the position information in the monitored road section.

In order to more accurately determine whether there are holes and the current situation of holes under the ground of the monitored road section, when each set of the potential difference data set is obtained, the corresponding historical data set is obtained, and the current potential difference data set is Compare the potential difference data in the historical data set with the potential difference data in the historical data set to determine the change in the potential difference data from the very beginning to the present. For example, when the air-filled underground cavity gradually expands upward and to the surrounding, the potential difference performance continuously rising. If the underground cavity is in the early stage of formation, the rising rate of the potential difference gradually increases, and then when the rate of increase of the potential difference changes to a slow decrease, it indicates that the underground cavity has been in contact with the ground surface in a large area and may collapse at any time.

For example, as shown in FIG. 4, the potential difference data in the potential difference data set between the AB electrode pair and the MN reference electrode pair corresponding to the MN reference electrode pair in chronological order are 1.2V, 1.2V, 1.2V, 1.2V, 1.8V, 2V, 2.4V, and the chronological historical potential difference data in the historical data set corresponding to the potential difference data set of the MN reference electrode pair are 1.2V, 1.2V, 1.2V, 1.2V, 1.2V, 1.2V, 1.2V. It can be seen that because the potential difference data in the potential difference data set gradually increases with time compared with the potential difference data in the historical data set, the MN reference electrode pair corresponding to the potential difference data set is determined as the target reference electrode. . Further, the AB electrode pair corresponding to the MN reference electrode pair is identified as the target electrode pair, and a ground subsidence warning is performed based on the position information of the AB electrode pair and the MN electrode pair in the monitored road section.

As an embodiment of the present application, although the rising speed of the potential difference between the target electrode pairs gradually increases in the initial stage of the formation of the underground cavity, the growth rate of the potential difference between the target electrode pairs is changed to a slow decrease in the later stage, indicating that the underground cavity has been larger than the ground surface. If the area is in contact, the possibility of collapse is greatly increased.

Therefore, if the potential difference data in the potential difference data set is compared with the potential difference data in the historical data set, the increase value between the chronological potential difference data in the potential difference data set gradually increases with time. If it increases or first increases and then gradually decreases, the target reference electrode corresponding to the potential difference data set is determined.

As an embodiment of the present application, in order to more accurately determine the area where the hole appears in the monitored road section, the warning of ground subsidence on the location information of the monitored road section according to the target electrode includes:

Obtain the electrode number of the target electrode pair.

Specifically, the respective electrode numbers of all electrodes in the target electrode pair are obtained.

According to the electrode number and the electrode distribution map, the position of the target electrode pair in the monitored road section is obtained.

The electrode distribution map includes distribution information and electrode numbers corresponding to the physical distribution positions of all preset electrodes in the monitored road section, and the distribution information uniquely corresponds to the electrode numbers.

Match the respective electrode numbers of all electrodes in the target electrode pair with the electrode numbers in the electrode distribution diagram to obtain the distribution information of the matched electrodes in the electrode distribution diagram, and obtain according to the distribution information The physical distribution position of the target electrode pair in the monitored road section.

The overlapping area is determined according to the position of the target electrode pair in the monitored road section.

Specifically, the overlap area is determined according to the physical distribution position of the target electrode pair in the monitored road section.

Early warning of ground subsidence is performed on the overlapping area.

In this embodiment, the overlapping area is the area of the road section that causes the potential difference between the corresponding electrode pairs to change. The physical distribution position is the actual spatial position of the electrode pairs distributed in the monitored road section, for example, the B electrode is located at the lower right corner of the crossroad of the monitored road section.

For example, referring to Figure 4, get the electrode numbers of the A electrode and the B electrode in the AB electrode pair as 01 and 02, respectively. Match the electrode numbers 01 and 02 with the electrode numbers in the electrode distribution diagram to obtain the A electrode and the B electrode The distribution information in the electrode distribution map, for example, the distribution information of the A electrode is the A001 position, and the distribution information of the B electrode is the B001 position, so as to obtain the target electrode pair in the substrate according to the distribution information. The physical distribution position in the monitored road section, that is, the A electrode is located at the upper left corner of the intersection of the monitored road section, and the B electrode is located at the lower right corner of the intersection of the monitored road section. Further, according to the physical distribution positions of the A electrode and the B electrode, it is determined that the overlapping area is located in the W area of the intersection of the monitored road section.

It should be understood that the size of the sequence number of each step in the foregoing embodiment does not mean the order of execution. The execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

Corresponding to the method described in the above embodiment, FIG. 5 shows a structural diagram of the ground subsidence early warning system provided by an embodiment of the present application. For ease of description, only the parts related to the embodiment of the present application are shown.

Referring to Figure 5, the system includes:

The control module 100 is configured to control multiple groups of electrode pairs preset in the monitored road section to sequentially emit current within a target time period according to a preset strategy.

The obtaining module 200 is configured to obtain multiple sets of potential difference data sets based on the detected electric potential difference data of the reference electrode pairs corresponding to the multiple groups of the electrode pairs in the target time period.

The early warning module 300 is configured to, if a target electrode pair is determined based on multiple sets of the potential difference data sets, perform a ground subsidence warning based on the position information of the target electrode pair in the monitored road section.

Optionally, the control module is further configured to, when any one of the electrode pairs in the plurality of sets of electrode pairs perform current emission, the first electrode and the second electrode in the set of the electrode pairs perform current emission in sequence.

Optionally, the acquisition module includes a first acquisition unit, a second acquisition unit, and a calculation unit.

The first acquiring unit is configured to acquire the first potential value of the first reference electrode and the second potential value of the second reference electrode when the first electrode performs current emission in the target time period.

The second acquiring unit is configured to acquire the third potential value of the first reference electrode and the fourth potential value of the second reference electrode when the second electrode performs current emission in the target time period.

The calculation unit is configured to calculate the reference electrode pair corresponding to the electrode pair in the target based on the first potential value, the second potential value, the third potential value, and the fourth potential value. Potential difference data in the time period.

Optionally, the early warning module includes a historical data acquisition unit, an electrode determination unit, an identification unit, and an early warning unit.

The historical data obtaining unit is used to obtain a historical data set corresponding to each group of the potential difference data set.

The electrode determining unit is configured to determine the target reference corresponding to the potential difference data set if the potential difference data in the potential difference data set gradually increases over time compared with the potential difference data in the historical data set electrode.

The identification unit is configured to identify an electrode pair corresponding to the target reference electrode as the target electrode pair.

The early warning unit is used to perform ground subsidence early warning on the position information of the monitored road section according to the target electrode.

Optionally, the early warning module further includes a serial number acquiring unit, a position determining unit, and an overlapping area determining unit.

The number acquiring unit is used to acquire the electrode number of the target electrode pair.

The position determining unit is configured to obtain the position of the target electrode pair in the monitored road section according to the electrode number and the electrode distribution map.

The overlapping area determining unit is configured to determine the overlapping area according to the position of the target electrode pair in the monitored road section.

The early warning unit is also used for early warning of ground subsidence in the overlapping area.

FIG. 6 is a schematic structural diagram of a terminal device provided by an embodiment of this application. As shown in FIG. 6, the terminal device 6 of this embodiment includes: at least one processor 60 (only one processor is shown in FIG. 6), at least two ECUs (only two ECUs are shown in FIG. 6), and a memory 61 And a computer program 62 that is stored in the memory 61 and can run on the at least one processor 60, and the processor 60 implements the steps in any of the above-mentioned ground trap warning method embodiments when the computer program 62 is executed .

The terminal device 6 may be a computing device such as a desktop computer, a notebook, a palmtop computer, and a cloud server. The terminal device may include, but is not limited to, a processor 60 and a memory 61. Those skilled in the art can understand that FIG. 6 is only an example of the terminal device 6 and does not constitute a limitation on the terminal device 6. It may include more or less components than shown in the figure, or a combination of certain components, or different components. , For example, can also include input and output devices, network access devices, and so on.

The processor 60 may be a central processing unit (Central Processing Unit, CPU), and the processor 60 may also be other general-purpose processors, digital signal processors (Digital Signal Processors, DSPs), and application specific integrated circuits (Application Specific Integrated Circuits). Integrated Circuit, ASIC), ready-made programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

The memory 61 may be an internal storage unit of the terminal device 6 in some embodiments, such as a hard disk or a memory of the terminal device 6. In other embodiments, the memory 61 may also be an external storage device of the terminal device 6, for example, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), and a secure digital device equipped on the terminal device 6. (Secure Digital, SD) card, flash card (Flash Card), etc. Further, the memory 61 may also include both an internal storage unit of the terminal device 6 and an external storage device. The memory 61 is used to store an operating system, an application program, a boot loader (BootLoader), data, and other programs, such as the program code of the computer program. The memory 61 can also be used to temporarily store data that has been output or will be output.

In an embodiment, referring to FIG. 7, the terminal device is connected to at least two ECUs through a wireless or wired network.

Those skilled in the art can understand that FIG. 7 is only an example of the terminal device 7 and does not constitute a limitation on the terminal device 7. It may include more or less components than those shown in the figure, or a combination of certain components, or different components. , For example, can also include input and output devices, network access devices, and so on.

In an embodiment, the terminal device may be a data center server.

It should be noted that the information interaction and execution process among the above-mentioned devices/units are based on the same concept as the method embodiment of this application, and its specific functions and technical effects can be found in the method embodiment section. I won't repeat it here.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the division of the above-mentioned functional units and modules is used as an example. In practical applications, the above-mentioned functions can be allocated to different functional units and modules as required. Module completion, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist alone physically, or two or more units can be integrated into one unit. The above-mentioned integrated units can be hardware-based Formal realization can also be realized in the form of a software functional unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present application. For the specific working process of the units and modules in the foregoing system, reference may be made to the corresponding process in the foregoing method embodiment, which will not be repeated here.

An embodiment of the present application also provides a terminal device. The terminal device includes: at least one processor, a memory, and a computer program stored in the memory and running on the at least one processor, and the processor executes The computer program implements the steps in any of the foregoing method embodiments.

The embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in each of the foregoing method embodiments can be realized.

The embodiments of the present application provide a computer program product. When the computer program product runs on a terminal device, the terminal device can realize the steps in the foregoing method embodiments when the terminal device is executed.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the implementation of all or part of the processes in the above-mentioned embodiment methods in this application can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When executed by the processor, the steps of the foregoing method embodiments can be implemented. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium may at least include: any entity or device capable of carrying the computer program code to a photographing device/terminal device, a recording medium, a computer memory, a read-only memory (ROM, Read-Only Memory), and a random access memory (RAM, Random Access Memory), electric carrier signal, telecommunications signal and software distribution medium. For example, U disk, mobile hard disk, floppy disk or CD-ROM, etc. In some jurisdictions, in accordance with legislation and patent practices, computer-readable media cannot be electrical carrier signals and telecommunication signals.

In the above-mentioned embodiments, the description of each embodiment has its own focus. For parts that are not described in detail or recorded in an embodiment, reference may be made to related descriptions of other embodiments.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed apparatus/network equipment and method may be implemented in other ways. For example, the device/network device embodiments described above are only illustrative. For example, the division of the modules or units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units. Or components can be combined or integrated into another system, or some features can be omitted or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, a person of ordinary skill in the art should understand that it can still implement the foregoing The technical solutions recorded in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the application, and should be included in Within the scope of protection of this application.

Claims

A method for early warning of ground subsidence, characterized in that the method includes:

According to the preset strategy, control the pre-set groups of electrode pairs in the monitored road section to sequentially emit current within the target time period;

Acquiring multiple groups of the electrode pairs corresponding to the reference electrode pairs within the target time period, based on the potential difference data detected by the emitted current, to obtain multiple groups of potential difference data sets;

If a target electrode pair is determined based on multiple sets of the potential difference data sets, a ground subsidence warning is performed based on the position information of the target electrode pair in the monitored road section.
The ground subsidence warning method of claim 1, wherein each group of the electrode pairs includes a first electrode and a second electrode; the current coverage area of the first electrode and the current coverage area of the second electrode There is an overlapping area in the monitored road section.
The ground subsidence early warning method according to claim 2, characterized in that, according to a preset strategy, controlling the pre-set groups of electrode pairs in the monitored road section to sequentially emit current within the target time period comprises:

When any one of the electrode pairs in the plurality of sets of electrode pairs performs current emission, the first electrode and the second electrode in the set of the electrode pairs perform current emission in sequence.
The ground subsidence warning method according to claim 2, wherein the reference electrode pair comprises a first reference electrode and a second reference electrode;

The step of acquiring the electric potential difference data detected based on the emitted electric current of the corresponding reference electrode pair in the target time period when the plurality of groups of the electrode pair emission currents includes:

Acquiring the first potential value of the first reference electrode and the second potential value of the second reference electrode when the first electrode performs current emission in the target time period;

Acquiring the third potential value of the first reference electrode and the fourth potential value of the second reference electrode when the second electrode performs current emission in the target time period;

Based on the first potential value, the second potential value, the third potential value, and the fourth potential value, the potential difference of the reference electrode pair corresponding to the electrode pair in the target time period is calculated data.
The ground subsidence warning method according to claim 4, wherein said calculation is based on said first potential value, said second potential value, said third potential value and said fourth potential value. The potential difference data of the reference electrode pair corresponding to the electrode pair in the target time period includes:

Calculate the potential difference data by the following formula,

K=｜(M1+(－M2))－(N1+(－N2))｜

Wherein, K represents the potential difference data; M1 represents the first potential value; M2 represents the third potential value; N1 represents the second potential value; N2 represents the fourth potential value.
The ground subsidence early warning method according to claim 4, wherein if the target electrode pair is determined based on multiple sets of the potential difference data sets, the position of the target electrode pair in the monitored road section is determined. Information for early warning of ground subsidence, including:

Acquiring a historical data set corresponding to each group of the potential difference data set;

If the potential difference data in the potential difference data set gradually increases with time as compared with the potential difference data in the historical data set, determining the target reference electrode corresponding to the potential difference data set;

Identifying an electrode pair corresponding to the target reference electrode as the target electrode pair;

Based on the target electrode, a ground subsidence warning is performed on the position information in the monitored road section.
7. The ground subsidence early warning method according to claim 6, wherein said performing ground subsidence warning on the position information in the monitored road section according to said target electrode comprises:

Obtaining the electrode number of the target electrode pair;

Obtaining the position of the target electrode pair in the monitored road section according to the electrode number and the electrode distribution map;

Determine the overlap area according to the position of the target electrode pair in the monitored road section;

Early warning of ground subsidence is performed on the overlapping area.
A ground subsidence early warning system, characterized in that the system includes:

The control module is used to control the pre-set groups of electrode pairs in the monitored road section to sequentially emit current within the target time period according to a preset strategy;

An obtaining module, configured to obtain multiple sets of potential difference data sets based on the detected potential difference data of the emitted current when the corresponding reference electrode pairs emit currents in multiple groups of the electrode pairs in the target time period;

The early warning module is configured to, if a target electrode pair is determined based on multiple sets of the potential difference data sets, perform a ground subsidence warning based on the position information of the target electrode pair in the monitored road section.
A terminal device, which is characterized by comprising a memory, a processor, and a computer program stored in the memory and capable of running on the processor. When the processor executes the computer program, it implements as claimed in claims 1 to 7. Steps in any one of the methods.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the method according to any one of claims 1 to 7 are realized .