CN115727752A - Depth sounding system - Google Patents

Abstract

The invention discloses a depth measurement system, which relates to the field of measurement and comprises a host, an electrode converter, electrodes and a cable, wherein a first power supply electrode, a second power supply electrode and a third power supply electrode are arranged as a group of power supply electrodes. The cable comprises a power supply cable and a measuring cable, the power supply cable and the measuring cable are respectively connected with the electrode converter, the measuring flexibility is enhanced, and the requirement for high-precision measurement in the construction process is met more easily.

Description

Sounding system

Technical Field

The invention relates to the field of measurement, in particular to a depth sounding system.

Background

With the rapid development of economy in China, infrastructure projects such as roads, bridges, tunnels, dams and the like are widely developed, and during construction of the infrastructure projects, the geological conditions of a construction area need to be known in detail so as to make detailed assessment on subsequent construction work. The electrical prospecting is a method for effectively measuring the geological condition, and the method can detect the conditions of the position, the distribution range and the like of the geologic body by taking the electrical property difference of the geologic body as a detection basis. The existing high-density electrical method is to arrange a power supply electrode and a measuring electrode for detection on the same cable, connect the same cable with an electrode converter, determine the electrical property below the power supply electrode through potential difference among a plurality of groups of measuring electrodes so as to further confirm a depth measurement curve in the following, and then change the positions of the power supply electrode and the measuring electrode through operations such as moving the cable or lengthening the cable and the like so as to determine the geological condition of the bottom three-dimensional.

In the prior art, two power supply electrodes A and B are generally arranged, the two power supply electrodes A and B can be used as two independent power supply electrodes, the two power supply electrodes A and B can also be used as a whole, the power supply voltage of one electrode is higher, the power supply voltage of the other electrode is lower, but electric fields generated by the two methods are weaker, the current density is lower, and the whole electric field is easily influenced by external environment and other interference factors, so that a final measurement result has larger error.

Disclosure of Invention

The invention aims to provide a depth measurement system, which is slightly influenced by the external environment, improves the signal-to-noise ratio and the anti-interference capability, ensures the accuracy and the reliability of a measurement result, enhances the measurement flexibility, and more easily meets the requirement of high-precision measurement in the construction process.

In order to solve the technical problem, the invention provides a depth measurement system which comprises a host, an electrode converter, an electrode and a cable, wherein the cable comprises a power supply cable and a measuring cable; the electrodes comprise at least one group of power supply electrodes and n pairs of measuring electrodes corresponding to the power supply electrodes, wherein n is a positive integer; n pairs of the measuring electrodes are arranged on the measuring cable;

the power supply electrodes of one group comprise a first power supply electrode, a second power supply electrode and a third power supply electrode, the first power supply electrode and the third power supply electrode are arranged on the power supply cable, and the power supply voltage of the first power supply electrode and the power supply voltage of the third power supply electrode are both greater than the power supply voltage of the second power supply electrode;

the second power supply electrode is arranged on the power supply cable or the measuring cable, the position of the second power supply electrode is the intersection position of the measuring cable and a midline, and the midline is the midline of the first power supply electrode and the third power supply electrode;

one end of the host is connected with a power supply, the other end of the host is connected with the electrode converter and used for sending a detection instruction to supply power to the electrode converter, and the detection instruction comprises an address signal for determining a power supply electrode of a current group to be detected and a corresponding measuring electrode;

the electrode converter is respectively connected with at least one group of power supply electrodes and n pairs of corresponding measuring electrodes, and is used for controlling the conduction of corresponding switches in the electrode converter according to the detection instruction, so that the host machine supplies power to the power supply electrodes of the current group to be detected through the conducted switches and receives measuring signals of the corresponding measuring electrodes.

Preferably, the host includes:

the control module is respectively connected with the transmitting module, the receiving module and the battery module and is used for sending a detection instruction, controlling the transmitting module to supply power to a power supply electrode of a current group to be detected through a switch conducted in the electrode converter and controlling the battery module to supply power to the electrode converter;

the battery module is connected with the electrode converter;

one end of the transmitting module is connected with the power supply, and the other end of the transmitting module is connected with the electrode converter;

the receiving module is connected with the electrode converter and used for receiving the measuring signal returned by the electrode converter and transmitting the measuring signal to the control module.

Preferably, when the number of the electrode converters is plural, the detecting instruction further includes determining an address signal of the electrode converter of the current group to be tested.

Preferably, the host further comprises:

and the boosting module is respectively connected with the battery module and the electrode converter and is used for boosting the output voltage of the battery module and outputting the boosted output voltage to the electrode converter when the starting voltage of the electrode converter is greater than the power supply voltage.

Preferably, the host further comprises:

and the power management module is respectively connected with the battery module and the electrode converter and is used for controlling the battery module to supply power to the electrode converter when detecting a starting signal of the electrode converter.

Preferably, the method comprises the following steps: the power supply electrodes are in multiple groups, and the second power supply electrodes in each group of power supply electrodes are arranged in a rectangular array.

Preferably, the method comprises the following steps: the power supply electrodes are in multiple groups, and the second power supply electrodes in each group of power supply electrodes are arranged in a circular array.

Preferably, the measuring electrode is a non-polarizing electrode.

Preferably, the first and third feeding electrodes are symmetrical with respect to the second feeding electrode.

Preferably, the electrode converter comprises:

the controller is connected with the host and the driving module at one end, and is used for controlling the conduction of a corresponding switch in the switch module through the driving module according to the detection instruction so as to enable the host to supply power to the power supply electrode of the current group to be measured through the conducted switch and receive the measurement signal of the corresponding measurement electrode;

the driving module is connected with the switch module;

with the same quantity of electrode switch module, with the electrode one-to-one is connected, and every switch module all includes first switch, second switch, third switch and fourth switch, the common port that the first end of first switch, the first end of second switch, the first end of third switch and the first end of fourth switch are connected and connect is connected with the electrode that self corresponds, A power supply line is connected to the second end of first switch, and B power supply line is connected to the first end of second switch, M measuring wire is connected to the second end of third switch, N measuring wire is connected to the second end of fourth switch.

The invention provides a depth measurement system which comprises a host, an electrode converter, electrodes and a cable, wherein a first power supply electrode, a second power supply electrode and a third power supply electrode are arranged as a group of power supply electrodes, when the host supplies power to the power supply electrodes through corresponding switches in the electrode converter, a current focusing effect is formed among the first power supply electrode, the second power supply electrode and the third power supply electrode, the current focusing effect can enhance an electric field generated by the power supply electrodes, the current density is improved, the whole system is slightly influenced by the external environment, the signal-to-noise ratio and the anti-interference capability are improved, and the accuracy and the reliability of a measurement result are ensured. The cable comprises a power supply cable and a measuring cable, the power supply cable and the measuring cable are respectively connected with the electrode converter, the measuring flexibility is enhanced, and the requirement for high-precision measurement in the construction process is met more easily.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a depth measurement system according to the present invention;

FIG. 2 is a schematic structural diagram of an electrode of a depth measurement system according to the present invention;

FIG. 3 is an analog circuit diagram of a depth measurement system during a depth measurement process according to the present invention;

FIG. 4 is a schematic structural diagram of another depth-finding system provided by the present invention;

FIG. 5 is a schematic diagram illustrating a current focusing effect formed by electrodes in a depth measurement system according to the present invention;

FIG. 6 is a schematic structural diagram of an electrode of another depth measurement system provided in the present invention;

fig. 7 is a schematic structural diagram of an electrode of another depth measurement system provided by the present invention.

Detailed Description

The core of the invention is to provide a depth measurement system, the whole system is slightly influenced by the external environment, the signal-to-noise ratio and the anti-interference capability are improved, the accuracy and the reliability of a measurement result are ensured, the measurement flexibility is enhanced, and the requirement of high-precision measurement in the construction process is more easily met.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a depth measurement system according to the present invention;

a sounding system comprises a host 1, an electrode converter 2, electrodes and cables, wherein the cables comprise a power supply cable 11 and a measuring cable 12; the electrodes comprise at least one group of power supply electrodes and n pairs of measuring electrodes corresponding to the power supply electrodes, wherein n is a positive integer; n pairs of measuring electrodes are arranged on the measuring cable 12;

the group of power supply electrodes comprises a first power supply electrode A1, a second power supply electrode B and a third power supply electrode A2, the first power supply electrode A1 and the third power supply electrode A2 are arranged on a power supply cable 11, and the power supply voltage of the first power supply electrode A1 and the power supply voltage of the third power supply electrode A2 are both greater than the power supply voltage of the second power supply electrode B;

the second power supply electrode B is arranged on the power supply cable 11 or the measuring cable 12, the position of the second power supply electrode B is the intersection position of the measuring cable 12 and a central line, and the central line is the central line of the first power supply electrode A1 and the third power supply electrode A2;

one end of the host 1 is connected with a power supply, the other end of the host is connected with the electrode converter 2 and used for sending a detection instruction to supply power to the electrode converter 2, and the detection instruction comprises an address signal for determining a power supply electrode of a current group to be detected and a corresponding measuring electrode;

the electrode converter 2 is respectively connected with at least one group of power supply electrodes and n pairs of corresponding measuring electrodes, and is used for controlling the conduction of corresponding switches in the electrode converter according to the detection instruction, so that the host 1 supplies power to the power supply electrodes of the current group to be detected through the conducted switches and receives measuring signals of the corresponding measuring electrodes.

It can be understood that, before performing depth measurement, the host 1 determines the power supply electrode and the measurement electrode that need to be adopted in this depth measurement through a preset program, after determining the address signals of the power supply electrode of the current group to be measured and the corresponding measurement electrode, the host 1 sends a detection instruction to the electrode converter 2, the electrode converter 2 closes the corresponding switch according to the detection instruction with the electrode corresponding to the address according to the detection instruction, and then sends a switch closing signal back to the host 1, the host 1 starts to supply power to the electrode converter 2 and the electrode after receiving the switch closing signal, the current supplies power to the power supply electrode through the corresponding conducting switch in the electrode converter 2, after the measurement electrode returns the detection signal to the electrode converter 2, the electrode converter 2 returns the detection signal to the host 1, the host 1 stores the detection signal to a preset position, then determines the power supply electrode and the measurement electrode that need to be adopted in the next depth measurement process, and repeats the multiple depth measurement processes until the electric signals of different depths of each second power supply electrode B in the preset program are all measured.

In practical application, a power supply electrode and a measuring electrode are needed to implement a depth measurement process, and for different power supply electrodes having corresponding measuring electrodes, please refer to fig. 2, where fig. 2 is a schematic structural diagram of an electrode of a depth measurement system provided by the present invention; m and N shown in fig. 2 are a pair of measuring electrodes, the power supply electrodes in the depth measurement system provided by the present application include a first power supply electrode A1, a second power supply electrode B and a third power supply electrode A2, the first power supply electrode A1, the second power supply electrode B and the third power supply electrode A2 are power supply electrodes in a group, and the power supply voltage of the first power supply electrode A1 and the power supply voltage of the third power supply electrode A2 are both greater than the power supply voltage of the second power supply electrode B, because the power supply voltage of the second power supply electrode B is smaller, the direction of the electric field generated by the first power supply electrode A1 and the third power supply electrode A2 is opposite to the direction of the electric field generated by the second power supply electrode B, and the current line flows from the first power supply electrode A1 and the third power supply electrode A2 to the second power supply electrode B, and the current density is greater the closer to the second power supply electrode B, the stronger the electric field signal is, so that the current focusing effect is formed to enhance the electric field around the second power supply electrode B, and fig. 5 is a schematic diagram of the depth measurement system provided by the present invention; when power is supplied, current flows out from the first power supply electrode A1 and the third power supply electrode A2, flows to the second power supply electrode B after passing through a geologic body below, the measuring electrode takes the second power supply electrode B as a center, electric potentials at different distances from the second power supply electrode B are measured gradually by keeping away from the second power supply electrode B, and the electric field distribution conditions at different depths below the second power supply electrode B are represented by the measured electric potentials at different distances from the second power supply electrode B, so that the electrical characteristics of the second power supply electrode B are obtained, a depth measurement curve is further confirmed subsequently, and further analysis on geological conditions is facilitated for subsequent workers.

Referring to fig. 3, fig. 3 is an analog circuit diagram of a depth measurement system in the depth measurement process according to the present invention; r shown in FIG. 3 _A1B For the equivalent resistance of the body through which the current flows from the first supply electrode A1 to the second supply electrode B, R is shown in FIG. 3 _A2B For the equivalent resistance of the geologic body through which the current flows from the third power supply electrode A2 to the second power supply electrode B, a current sampling resistor may be provided in the host 1 for determining the current value of the entire depth measuring circuit by the power supply voltage and the resistance value of the current sampling resistor.

It can be understood that, before sounding, the host 1 may re-determine the values of the first power supply electrode A1, the second power supply electrode B, the third power supply electrode A2 and the pair of measurement electrodes corresponding to the power supply electrodes according to a preset program, or may directly determine a plurality of pairs of measurement electrodes, where the determination manner mainly depends on the specific content of the preset program, and the specific setting, how to set, the specific content of the preset program, and the like are manually set in advance during the preset program and are not particularly limited in this application.

It should be noted that the host 1 and the electrode converter 2 are connected by a control line, and generally, the control line includes a power line for supplying power to the electrode converter 2, a communication line for performing data communication with the electrode converter 2, a B power supply line for supplying power to the second power supply electrode B, an a power supply line for supplying power to the first power supply electrode A1 and the third power supply electrode A2, an M measurement line and an N measurement line for receiving detection signals of the measurement electrodes, and the specific type and size of the control line and the like are not particularly limited in this application. The data communication between the host 1 and the electrode converter 2 can be performed by various communication methods, such as broadcast communication, etc., and the application is not limited thereto. The power supply process of the host 1 to the electrode converter 2 and the power supply electrode may be continuous, or may be periodic power supply according to a preset frequency, and the specific power supply mode and power supply voltage are not particularly limited in this application.

It can be understood that the number of the electrode converters 2 is not limited, and the electrode converters may be configured according to other factors such as the size of the area to be detected, when there are a plurality of electrode converters 2, the plurality of electrode converters 2 may be connected to the host 1 one by one through a control line, or after one electrode converter 2 is connected to the host 1, the rest of the electrode converters 2 may be connected in sequence through a system such as a serial converter, and the application, such as the number, model, and connection mode of the electrode converters 2, is not particularly limited herein. It will be appreciated that the electrode converter 2 may be combined with a cable to form cascaded sections, and that the communication in each cascaded section is relayed. The host 1 generates a high-voltage direct-current power supply and a serial communication signal, and provides distributed power supply and instruction sending for each electrode converter 2, and generates various constant-voltage power supplies for each functional module.

Specifically, the electrode converters 2 corresponding to the power supply cable 11 and the measurement cable 12 may be distinguished as the measurement electrode converter 2 and the power supply electrode converter 2, or the power supply cable 11 and the measurement cable 12 may be connected to the same electrode converter 2, and the specific connection and implementation manner is not particularly limited in this application and may be adjusted at any time according to factors such as the difference of detection areas or the difference of interfaces of the electrode converters 2.

It should be noted that, the way that the host 1 supplies power to the electrode converter 2 and the power supply electrode is different, the host 1 supplies power to the electrode converter 2 through the battery module provided in the host 1, the battery module provided in the host 1 supplies power to the host 1 and the electrode converter 2, the host 1 supplies power to the power supply electrode by using an external power supply, generally an external direct current, and the application is not particularly limited to the selection of the specific battery module and the external power supply and the corresponding power supply way. There are many choices for the internal structures and specific implementation circuits of the host 1 and the electrode converter 2, and different models of the host 1 or the electrode converter 2 can be configured according to actual measurement requirements, and the internal structures, models, sizes, and the like of the host 1 and the electrode converter 2 are not particularly limited in this application.

Generally, after completing the measurement of the electrical signals of the second power supply electrode B at different depths, the host 1 may analyze and process the measurement result below the second power supply electrode B and then integrate the electrical characteristics of the second power supply electrode B, or integrate the electrical characteristics of each corresponding second power supply electrode B in a preset program, so as to further obtain a three-dimensional geological condition below a detection plane, and the host 1 does not specifically limit how the detection result is processed and a specific processing method. The data in the host 1 can also be exported to other remote devices for further analysis and processing.

It should be noted that the electrical characteristic of the second power supply electrode B may be obtained through the potential signal detected by the measuring electrode, and other electrical signals such as a current signal and a resistance signal detected by the measuring electrode may also be used to characterize the electric field distribution conditions at different depths below the second power supply electrode B, and the electrical characteristic of the second power supply electrode B may also be obtained, and multiple electrical signals may also be measured, and the electrical characteristic of the second power supply electrode B may be obtained through comprehensive analysis. The method has the advantages that the electrical characteristics of the same depth can be measured for different power supply electrodes, the electrical characteristics of different depths can also be measured, the change step length of the depth and the like in the process of confirming the electrical characteristics are not limited too much, the depth, the distance between different depths and the like measured by the power supply electrodes are not limited specially, and the method is adjusted according to actual measurement conditions.

Considering that the measuring electrode also causes a certain interference to the electric field generated by the feeding electrode, the cable is divided into a feeding cable 11 and a measuring cable 12, the first feeding electrode A1 and the third feeding electrode A2 are disposed on the feeding cable 11, the measuring electrode is disposed on the measuring cable 12, and the second feeding electrode B is used as the intersection point of the feeding cable 11 and the measuring cable 12, and may be disposed on the feeding cable 11 or on the measuring cable 12. Generally, the difference between the power supply voltages of the first power supply electrode A1 and the third power supply electrode A2 is small and almost equal to ensure that the electric field intensity formed by the power supply electrodes is stable, and basically, the intersection point of the current lines formed by the first power supply electrode A1 and the third power supply electrode A2 is at the middle point of the two, and the second power supply electrode B is located on the middle line of the first power supply electrode A1 and the third power supply electrode A2.

Specifically, with supply cable 11 and measuring cable 12 separation, can realize the measurement at the electric property of different angles to second supply electrode B through the contained angle realization between adjustment supply cable 11 and the measuring cable 12, also can set up many measuring cables 12 to same second supply electrode B, realize the measurement to the omnidirectional electric property of second supply electrode B, realize the precision scanning to the wide range multi-angle of geology condition, satisfy the following shape precision scanning to the target body, the nimble measuring mode that can select according to particular case, reduce artifical extravagant, improve work efficiency, with supply cable 11 and measuring cable 12 separation also can further ensure to further increase the measurement depth of second supply electrode B below, can all realize through increase measuring cable 12 alone or translation measuring cable 12 etc.. The specific arrangement of the power supply cable 11 and the measurement cable 12, the type, number, length, etc. of the cables, and the cables are not particularly limited in this application, and the cables may be large-wire cables, etc. In general, in the measurement process, the measured potentials at different distances from the second power supply electrode B are used to characterize the electric field distribution at different depths below the second power supply electrode B based on the equipotential surface of the second power supply electrode B, and the power supply cable 11 and the measurement cable 12 can be vertically arranged by considering the shape of the equipotential line of the second power supply electrode B.

In practical applications, a pair of measuring electrodes may be composed of two adjacent electrodes, or may be composed of two electrodes separated by one electrode, generally, the distance between two electrodes in a pair of measuring electrodes is as small as possible to ensure the accuracy of the measurement result, and the application of the distance between a pair of measuring electrodes and the specific measurement process is not limited herein. The specific arrangement of the pairs of measuring electrodes and the direction of the feeding electrodes for a group of feeding electrodes are not particularly limited in this application.

It can be understood that a plurality of electrodes are arranged on the cable, when a depth measurement process starts, one electrode is determined as a second power supply electrode B, then the second power supply electrode B is used as an intersection point to determine the power supply cable 11 and the measurement cable 12, two electrodes are determined on the power supply cable 11 as a first power supply electrode A1 and a third power supply electrode A2 according to a position relation, the electrodes on the measurement cable 12 can be used as measurement electrodes, and the specific selection depends on the depth requirement to be measured. Therefore, the selection of the power supply cable 11 and the measurement cable 12 is not fixed, one cable may be used as the power supply cable 11 or as the measurement cable 12, the power supply cable 11 in one measurement process may also be used as the measurement cable 12 in other measurement processes, and the material, size, length, and the like of the cable are not particularly limited in this application.

It can be understood that the selection of the power supply electrode and the measurement electrode is not fixed, one electrode may be used as a power supply electrode or a measurement electrode, the power supply electrode in one measurement process may also be used as a measurement electrode in other measurement processes, in practical applications, the measurement electrode may be a plurality of pairs of different electrodes or a pair of electrodes, when the measurement electrode is a plurality of pairs of electrodes, the electrical characteristic of the second power supply electrode B may be directly obtained according to the measurement result of the measurement electrode in different pairs, when the measurement electrode is a pair of electrodes, after obtaining a measurement result, the measurement of the electrical potentials of the second power supply electrode B at different depths is completed by translating the pair of measurement electrodes or translating the corresponding measurement cable 12, and the electrical characteristic of the second power supply electrode B may also be obtained. Specifically, the material, size, shape, and the like of the electrode are not particularly limited in this application.

It can be understood that, when the power supply electrode was the multiunit, measure a plurality of second power supply electrode B's electrical property, can acquire the three-dimensional geological conditions of corresponding bottom, supply cable 11 and measuring cable 12 separation are supplied with power to this application, can realize detecting the geological conditions of the bottom of arbitrary shape, the measurement process is more nimble, also can acquire more data in order to satisfy the required precision of measurement, this application such as the shape of arranging and the arrangement area size of electrode and cable does not do special restriction here in the concrete application, the regional nimble change of geology that can detect as required.

The invention provides a depth sounding system which comprises a host 1, an electrode converter 2, electrodes and cables, wherein a first power supply electrode A1, a second power supply electrode B and a third power supply electrode A2 are arranged as a group of power supply electrodes, when the host 1 supplies power to the power supply electrodes through corresponding switches in the electrode converter 2, a current focusing effect is formed among the first power supply electrode A1, the second power supply electrode B and the third power supply electrode A2, the current focusing effect can enhance an electric field generated by the power supply electrodes, the current density is improved, the whole system is slightly influenced by the external environment, the signal-to-noise ratio and the anti-interference capability are improved, and the accuracy and the reliability of a measuring result are ensured. The cable comprises a power supply cable 11 and a measuring cable 12, the power supply cable 11 and the measuring cable 12 are respectively connected with the electrode converter 2, measuring flexibility is enhanced, and the requirement for high-precision measurement in the construction process is met more easily.

On the basis of the above-described embodiments,

as a preferred embodiment, the host 1 includes:

the control module is respectively connected with the transmitting module, the receiving module, the battery module and the electrode converter 2 and used for sending a detection instruction, controlling the transmitting module to supply power to a power supply electrode of a current group to be detected through a switch conducted in the electrode converter 2 and controlling the battery module to supply power to the electrode converter 2;

a battery module connected to the electrode converter 2;

one end of the transmitting module is connected with a power supply, and the other end of the transmitting module is connected with the electrode converter 2;

and the receiving module is connected with the electrode converter 2 and used for receiving the measuring signal returned by the electrode converter 2 and transmitting the measuring signal to the control module.

In practical application, the host 1 generally includes a control module, a transmitting module, a receiving module and a battery module, and other auxiliary modules may also be added, before depth measurement is performed, the control module in the host 1 determines a power supply electrode and a measurement electrode that need to be used for the depth measurement through a preset program, after address signals of the power supply electrode and the corresponding measurement electrode of a current group to be measured are determined, the control module sends a detection instruction to the electrode converter 2, the electrode converter 2 closes an internal corresponding switch according to the detection instruction with the electrode corresponding to the address according to the detection instruction, and then sends a switch closing signal back to the control module, after receiving the switch closing signal, the control module controls the transmitting module to supply power to the power supply electrode of the current group to be measured through the switch conducted in the electrode converter 2, the control battery module supplies power to the electrode converter 2, after the measurement electrode returns the detection signal to the electrode converter 2, the electrode converter 2 returns the detection signal to the receiving module, and then transmits the detection signal to the control module to perform subsequent operations such as storage, analysis and processing.

It is understood that the control module may be a processor, a control chip, etc., and the selection of the control module and the specific internal program are not particularly limited herein; the battery module is generally selected to be a lithium battery and the like, power is supplied to the host 1 and the electrode converter 2 in the whole process, and the selection of the type, the capacity, the specific implementation circuit and the like of the battery module are not particularly limited in the application; the receiving module is mainly configured to receive the measurement signal, and may also be configured to detect other parameters such as a current value flowing from the second power supply electrode B, and a specific circuit structure and an implementation manner are not particularly limited in this application.

Specifically, emission module mainly used is through external power supply for the power supply electrode power supply, this application such as inside specific circuit structure and implementation does not do special restriction here, generally, including the H bridge in the emission module, the H bridge driver, circuits such as overvoltage overcurrent protection circuit and current sampling circuit, H bridge and H bridge driver are used for controlling the switching on of emission module, overvoltage overcurrent protection circuit mainly used protection circuit, prevent current fault, current sampling circuit has generally set up current sampling resistance, be arranged in confirming the current value in the whole circuit through supply voltage and current sampling resistance, be convenient for carry out analysis processes to the signal of telecommunication after obtaining the measured signal of telecommunication.

The embodiment is a further description of the host 1, and provides a specific implementation manner of the structure of the host 1, where the host 1 generally includes a control module, a transmitting module, a receiving module, a battery module, and the like, and these modules cooperate to implement a depth measurement process, so that the whole depth measurement process is more detailed, and the specific structure of the whole depth measurement system is further defined.

As a preferred embodiment, when the number of the electrode converters 2 is plural, the detection instruction further includes determining an address signal of the electrode converter 2 of the group currently under test.

It can be understood that when the number of electrodes required for the whole depth measurement process is large, the number of the electrode converters 2 may be multiple, and when the number of the electrode converters 2 is multiple, the host 1 further needs to determine the address signals of the electrode converters 2 corresponding to the respective electrodes when determining the address signals of the power supply electrodes and the corresponding measurement electrodes of the current group to be measured. The host 1, the electrode converter 2 and the electrode all have independent addresses, the absolute address is composed of a relative address and an offset address, the address of the host 1 can be set to be 0, when the host 1 is connected with the electrode converter 2, the host 1 is read and coded, the relative address of the electrode converter 2 which is connected with the interface 1 of the host 1 and is far away from the host 1 is assumed to be 1, and the relative address of the J-th electrode converter 2 is assumed to be J. The coding of the electrodes may be fixed by the electrode converter 2 before shipment. In the working process, the host 1 sends a detection instruction to the electrode converter 2 with a corresponding address, and the converter performs corresponding actions to complete the selection of each electrode.

There are various ways to select the electrode converter 2, the determination method of the address signals of the electrodes, the corresponding detection process, and the like, and the application is not limited in particular.

Considering that the electrode converters 2 need to be distinguished when a plurality of electrode converters 2 exist, the detection instruction sent by the host 1 further includes an address signal for determining the electrode converter 2 of the current group to be measured, so as to ensure that the electrode conducted by the electrode converter 2 is the electrode required by the correct depth measurement process, thereby ensuring the accuracy of the measurement result, and meanwhile, the plurality of electrode converters 2 can also enhance the flexibility of measurement, thereby further meeting the requirement of high-precision measurement in the construction process.

As a preferred embodiment, the host 1 further includes:

and the boosting module is respectively connected with the battery module and the electrode converter 2 and is used for boosting the output voltage of the battery module and outputting the boosted output voltage to the electrode converter 2 when the starting voltage of the electrode converter 2 is greater than the power supply voltage.

Considering that the starting voltage of the electrode converter 2 is greater than the default power supply voltage of the main unit 1, a boost module is additionally arranged in the main unit 1, generally, the default power supply voltage of the electrode converter 2 of the main unit 1 is 12V, but for different electrode converters 2, because of differences of devices such as adopted control chips, the power supply voltage of the electrode converter 2 needs to be 15V or other values, and at this time, the boost module needs to be arranged to boost the output voltage of the battery module and then output the boosted output voltage to the electrode converter 2 so as to ensure the normal operation of the electrode converter 2. The boost module can boost the power supply voltage of the battery module to a voltage of 60-150V, and the specific circuit structure and implementation manner of the boost module are not particularly limited in this application.

In consideration of the fact that the starting voltage of the electrode converter 2 is larger than the power supply voltage, the host 1 is additionally provided with the boosting module, the output voltage of the battery module is boosted and then output to the electrode converter 2, normal work of the electrode converter 2 is guaranteed, meanwhile, high-voltage transmission can also reduce loss of the power supply voltage on a line, completion of the whole depth measurement process is further guaranteed, and accuracy and reliability of measurement results are guaranteed.

As a preferred embodiment, the host 1 further includes:

and the power management module is respectively connected with the battery module and the electrode converter 2 and is used for controlling the battery module to supply power to the electrode converter 2 when the starting signal of the electrode converter 2 is detected.

Considering that the electrode converters 2 do not need to operate at any moment, especially when there are a plurality of electrode converters 2, all the electrode converters 2 do not all operate at the same moment, a power management module is additionally arranged in the host 1, and when a start signal of the electrode converter 2 is detected, the battery module is controlled to supply power to the electrode converter 2, so as to ensure that the electrode converter 2 needing to operate operates at the moment needing to operate. The specific circuit structure and implementation of the power management module are not particularly limited in this application.

Considering that the electrode converters 2 do not need to work all the time, especially when the electrode converters 2 are multiple, not all the electrode converters 2 all work at the same time, the power management module is additionally arranged, and only when the electrode converters 2 need to work, the battery module supplies power to the electrode converters 2, so that energy is saved, unnecessary power consumption is avoided, and the working time of installing a system is prolonged to a certain extent.

As a preferred embodiment, comprising: the power supply electrodes are in multiple groups, and the second power supply electrodes B in each group of power supply electrodes are arranged in a rectangular array.

Considering that in practical application, not only the electrical characteristics of one point need to be analyzed, a plurality of groups of power supply electrodes can be arranged, the second power supply electrodes B in each group of power supply electrodes are arranged in a rectangular array, and the electrical characteristics below each second power supply electrode B can be obtained, so that the geological condition of an underground cube is obtained. The measurement process of the electrical characteristic of the second feeding electrode B among the plurality of sets of feeding electrodes is a repeated work of the measurement process of the single second feeding electrode B in the above-described embodiment.

Specifically, the second power supply electrode B in each group of power supply electrodes is arranged in a rectangular array, and needs to be provided with a plurality of power supply cables 11 and measuring cables 12, and the specific arrangement shape, arrangement area size and the like are not particularly limited herein, so that the geological region which can be detected as required can be flexibly changed.

Taking the rectangular measurement area as an example, please refer to fig. 6, fig. 6 is a schematic structural diagram of an electrode of another depth measurement system provided by the present invention; the plurality of power supply cables 11 are arranged in parallel at the same interval, the plurality of measurement cables 12 are arranged in parallel at the same interval, intersection points exist between each measurement cable 12 and each power supply cable 11, the intersection points can be used as second power supply electrodes B, when one of the intersection points is selected as the second power supply electrode B as shown in the figure, the intersection points of the corresponding power supply cable 11 and the measurement cables 12 on the two sides of the point can be used as a first power supply electrode A1 and a third power supply electrode A2, and the intersection points of the corresponding measurement cable 12 and the other power supply cables 11 can be used as measurement electrodes. It is understood that when a certain intersection point is selected as the second feeding electrode B, the electrodes on the corresponding feeding cable 11 can be both the first feeding electrode A1 and the third feeding electrode A2, and it is only necessary that the two electrodes are substantially symmetrical about the intersection point, and the electrodes on the corresponding measuring cable 12 can be both the measuring electrodes, and for the measuring electrodes, the specific selection of the first feeding electrode A1 and the third feeding electrode A2 is not particularly limited herein.

In practical application, can lay many cables simultaneously and go on the measurement to multiunit power supply electrode after, realize reducing artifical extravagant, improve work efficiency to the precision scanning of the multi-angle on a large scale of geological conditions. The denser the plurality of sets of power supply electrodes are, the more accurate the final measurement result is, and the density of the power supply electrodes and the number of sets are not particularly limited in this application.

When the power supply electrodes are in a plurality of groups, the second power supply electrodes B in each group of power supply electrodes can be arranged in a rectangular array, the detection of the geological condition below a rectangle is realized, the detection of the geological condition of a three-dimensional region can be realized by the plurality of groups of power supply electrodes, the detection result of the geological condition is more comprehensive, the detection range of the whole system is larger, the application environment is wider, and the measurement precision of the whole system is improved.

As a preferred embodiment, comprising: the power supply electrodes are in multiple groups, and the second power supply electrodes B in each group of power supply electrodes are arranged in a circular array.

Considering not only that the electrical characteristics of a point need be analyzed in practical application, a plurality of groups of power supply electrodes can be arranged, the second power supply electrodes B in each group of power supply electrodes are arranged in a circular array, the electrical characteristics below each second power supply electrode B can be obtained, and therefore the geological condition of an underground cylinder is obtained. The measurement process of the electrical characteristic of the second feeding electrode B in the plurality of sets of feeding electrodes is a repeated operation of the measurement process of the single second feeding electrode B in the above-described embodiment.

Specifically, the second power supply electrode B in each group of power supply electrodes is in a circular array arrangement and needs to be provided with a plurality of cables, and the specific arrangement shape, the arrangement area size and the like are not particularly limited in the application, so that the geological region which can be detected as required can be flexibly changed.

Taking a measuring area as a perfect circle as an example, please refer to fig. 7, and fig. 7 is a schematic structural diagram of an electrode of another depth measurement system provided by the present invention, depth measurement points marked in the figure can be used as the second power supply electrode B, and a depth measurement curve marked in the figure represents that all obtained depth measurement curves can represent the geological condition of the cylinder after each depth measurement point is used as the second power supply electrode B for measurement; the cables are arranged in a radioactive mode from the same end point, included angles between every two adjacent cables are the same, a plurality of concentric circles are drawn by taking the end point as the center, intersection points of the concentric circles and the cables can be used as second power supply electrodes B, when three adjacent cables are determined as shown in the figure, electrodes at the same positions of the cables on two sides are used as first power supply electrodes A1 and third power supply electrodes A2, the position, where the sector arc length between the first power supply electrode A1 and the third power supply electrode A2 intersects with the cable in the middle, of each cable is used as a second power supply electrode B, and electrodes on the cable in the middle can be used as measuring electrodes. The cables at both sides are called the power supply cables 11, the cable at the middle is called the measuring cable 12, and the specific choice of the first power supply electrode A1 and the third power supply electrode A2 for the measuring electrode is not particularly limited herein.

In practical application, a plurality of cables can be laid simultaneously and then the plurality of groups of power supply electrodes are measured, large-range and multi-angle precision scanning of geological conditions is achieved, manual waste is reduced, and working efficiency is improved. The denser the multiple groups of power supply electrodes are, the more accurate the final measurement result is, and the density of the power supply electrodes and the number of the groups are not particularly limited in this application.

When the power supply electrode is the multiunit, can be with the second power supply electrode B among every group power supply electrode be circular array and arrange, realize the detection to the geology condition of a circular shape below, multiunit power supply electrode can realize the detection to the geology condition of a three-dimensional region, and is more comprehensive to the detection result of geology condition, makes entire system's detection scope bigger, and applicable environment is wider, has improved entire system's measurement accuracy.

As a preferred embodiment, the measuring electrode is a non-polarizing electrode.

Considering that when the electrode is made of a polar material and the electrode is charged and discharged in the process of electrification measurement, the electric field generated by the power supply electrode is interfered, so that the detection result is influenced, the non-polarized electrode can be used as the measuring electrode, and when the measuring electrode is the non-polarized electrode, the measured value for representing the electric field distribution conditions of different depths below the second power supply electrode B can be the corresponding parameters such as the visual polarization rate Ms, the half-decay Th, the attenuation D, the comprehensive excitation parameter Zp and the deviation R, so that the multi-parameter measurement is further realized.

It is understood that the feeding electrode may also be a non-polarized electrode, so as to further ensure the accuracy of the measurement result, and the specific electrodes and the number of electrodes are not particularly limited in this application.

The measuring electrode adopts the unpolarized electrode, reduce because the error that the influence of electrode material itself caused the measuring result, make the measuring result more accurate, guaranteed the reliability of measuring result, improved measured data's SNR, promoted the accuracy of sounding process, improved entire system's measurement accuracy and interference killing feature, the unpolarized electrode still includes multiple parameter simultaneously, can further characterize the electric field distribution condition of the different degree of depth in second power supply electrode B below through these parameters, improve the accuracy of measuring result.

As a preferred embodiment, the first feeding electrode A1 and the third feeding electrode A2 are symmetrical with respect to the second feeding electrode B.

It can be understood that, when the first power supply electrode A1 and the third power supply electrode A2 are symmetrical with respect to the second power supply electrode B, the three are on the same line, and the voltage of the first power supply electrode A1 and the third power supply electrode A2, the distance between the first power supply electrode A1 and the third power supply electrode A2, the potential direction, etc. are all symmetrical with respect to the second power supply electrode B, the current focusing effect formed by a group of power supply electrodes is better, so that the second power supply electrode B can fully utilize the electric field formed by the first power supply electrode A1 and the third power supply electrode A2, the signal-to-noise ratio of the measured data is improved, and the accuracy of the measured result is further ensured.

When the first power supply electrode A1 and the third power supply electrode A2 are symmetrical about the second power supply electrode B, the formed current focusing effect is better, the measuring result is more accurate, the signal-to-noise ratio of the measured data is improved, the reliability of the measuring result is ensured, the accuracy of the depth measuring process is improved, and the measuring accuracy and the anti-interference capability of the whole system are improved.

Referring to fig. 4, fig. 4 is a schematic structural diagram of another depth measurement system provided in the present invention;

as a preferred embodiment, the electrode converter 2 includes:

the controller is connected with the host 1 at one end and the driving module at the other end, and is used for controlling the conduction of corresponding switches in the switch modules through the driving module according to the detection instruction, so that the host 1 supplies power to the power supply electrodes of the current group to be measured through the conducted switches and receives the measurement signals of the corresponding measurement electrodes;

the driving module is connected with the switch module;

the switch modules with the same number of electrodes are connected with the electrodes in a one-to-one correspondence mode, each switch module comprises a first switch, a second switch, a third switch and a fourth switch, the first end of the first switch, the first end of the second switch, the first end of the third switch and the first end of the fourth switch are connected, the connected public end is connected with the electrode corresponding to the public end, the second end of the first switch is connected with an A power supply line, the first end of the second switch is connected with a B power supply line, the second end of the third switch is connected with an M measuring line, and the second end of the fourth switch is connected with an N measuring line.

In practical application, the electrode converter 2 generally includes a controller, a driving module, a switch module, and the like, and after receiving a detection instruction sent by the host 1, the controller controls the driving module according to the detection instruction, so that the driving module controls an electrode corresponding to an address to close a corresponding switch in the switch module according to the detection instruction, so that the host 1 supplies power to a power supply electrode of a current group to be measured through the switched-on switch and receives a measurement signal of a corresponding measurement electrode, and after the measurement electrode returns the detection signal to the controller through a measurement line, the controller returns the detection signal to the host 1. The reference numbers 1-60 in fig. 4 indicate the different poles and their corresponding switch modules.

The controller may be a microcontroller, etc., and the specific type of the controller and the internal program, etc. are not particularly limited herein; the switch module comprises a first switch, a second switch, a third switch and a fourth switch, and when the electrodes connected with the switch module are a first power supply electrode A1 and a third power supply electrode A2, the first switch is closed based on the control of the driving module; when the electrode connected with the switch module is a second power supply electrode B, closing the second switch based on the control of the driving module; when the electrode connected with the switch module is the measurement electrode, the third switch or the fourth switch is closed based on the control of the driving module, and a specific switch can select a switch device such as a relay, and the specific selection type of the switch and the like is not particularly limited in this application; the selection of the driving module is mainly adjusted according to the selected switch, and the specific structure and implementation manner of the driving module are not particularly limited in this application.

The present embodiment is a further description of the electrode transducer 2, and provides a specific implementation manner of the structure of the electrode transducer 2, where the electrode transducer 2 generally includes a controller, a driving module, a switch module, and the like, and these modules cooperate to implement a depth measurement process, so that the whole depth measurement process is more detailed, and the specific structure of the whole depth measurement system is further defined.

As a preferred embodiment, the measuring cable 12 and the power supply cable 11 are spliced.

Considering the intersection condition of the measuring cable 12 and the power supply cable 11, when the measuring cable 12 and the power supply cable 11 intersect, the measuring cable 12 and the power supply cable 11 are lapped, so that the intersection point of the measuring cable 12 and the power supply cable 11 can be ensured to be overlapped with the second power supply electrode B as much as possible, and the accuracy of the measuring result is further ensured. Meanwhile, the overlapping mode can avoid the conditions of position deviation and the like of the cable caused by the influence of external factors.

The measuring cable 12 and the power supply cable 11 are lapped, so that the intersection point of the measuring cable 12 and the power supply cable 11 is approximately overlapped with the second power supply electrode B, the measuring result is more accurate, the reliability of the measuring result is ensured, the accuracy of the depth measurement process is improved, and the measuring precision and the anti-interference capability of the whole system are improved.

As a preferred embodiment, the supply voltages of the first supply electrode A1 and the third supply electrode A2 are equal.

Specifically, when the power supply voltages of the first power supply electrode A1 and the third power supply electrode A2 are completely equal, the electric field intensity formed by the first power supply electrode A1 and the third power supply electrode A2 is equal, and the current focusing effect formed by a group of power supply electrodes has a better effect, so that the second power supply electrode B can make full use of the electric field formed by the first power supply electrode A1 and the third power supply electrode A2, the signal-to-noise ratio of the measurement data is improved, and the accuracy of the measurement result is further ensured. It can be understood that when the first power feeding electrode A1 and the third power feeding electrode A2 are symmetrical with respect to the second power feeding electrode B and the power feeding voltages of the first power feeding electrode A1 and the third power feeding electrode A2 are completely equal, the effect of the current focusing effect formed by the one set of power feeding electrodes is the best.

When the power supply voltages of the first power supply electrode A1 and the third power supply electrode A2 are equal, the formed current focusing effect is better, the measurement result is more accurate, the signal-to-noise ratio of the measurement data is improved, the reliability of the measurement result is ensured, the accuracy of the depth measurement process is improved, and the measurement precision and the anti-interference capability of the whole system are improved.

It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A sounding system is characterized by comprising a host, an electrode converter, electrodes and cables, wherein the cables comprise a power supply cable and a measuring cable; the electrodes comprise at least one group of power supply electrodes and n pairs of measuring electrodes corresponding to the power supply electrodes, wherein n is a positive integer; n pairs of the measuring electrodes are arranged on the measuring cable;

the power supply electrodes of one group comprise a first power supply electrode, a second power supply electrode and a third power supply electrode, the first power supply electrode and the third power supply electrode are arranged on the power supply cable, and the power supply voltage of the first power supply electrode and the power supply voltage of the third power supply electrode are both greater than the power supply voltage of the second power supply electrode;

the second power supply electrode is arranged on the power supply cable or the measuring cable, the position of the second power supply electrode is the intersection position of the measuring cable and a midline, and the midline is the midline of the first power supply electrode and the third power supply electrode;

one end of the host is connected with a power supply, the other end of the host is connected with the electrode converter and used for sending a detection instruction to supply power to the electrode converter, and the detection instruction comprises address signals for determining a power supply electrode of a current group to be detected and a corresponding measuring electrode;

the electrode converter is respectively connected with at least one group of power supply electrodes and n pairs of corresponding measuring electrodes, and is used for controlling the conduction of corresponding switches in the electrode converter according to the detection instruction, so that the host machine supplies power to the power supply electrodes of the current group to be measured through the conducted switches and receives measuring signals of the corresponding measuring electrodes.

2. The sounding system of claim 1, wherein the host computer comprises:

the control module is respectively connected with the transmitting module, the receiving module and the battery module and is used for sending a detection instruction, controlling the transmitting module to supply power to a power supply electrode of a current group to be detected through a switch conducted in the electrode converter and controlling the battery module to supply power to the electrode converter;

the battery module is connected with the electrode converter;

one end of the transmitting module is connected with the power supply, and the other end of the transmitting module is connected with the electrode converter;

the receiving module is connected with the electrode converter and used for receiving the measuring signal returned by the electrode converter and transmitting the measuring signal to the control module.

3. The sounding system of claim 1, wherein when the number of electrode converters is plural, the detection instruction further includes determining an address signal of an electrode converter of a current group to be tested.

4. The depth sounding system of claim 2, wherein the host computer further comprises:

and the boosting module is respectively connected with the battery module and the electrode converter and is used for boosting the output voltage of the battery module and outputting the boosted output voltage to the electrode converter when the starting voltage of the electrode converter is greater than the power supply voltage.

5. The sounding system of claim 2, wherein the host computer further comprises:

and the power management module is respectively connected with the battery module and the electrode converter and is used for controlling the battery module to supply power to the electrode converter when detecting a starting signal of the electrode converter.

6. The sounding system of claim 1, comprising: the power supply electrodes are in multiple groups, and the second power supply electrodes in each group of power supply electrodes are arranged in a rectangular array.

7. The depth sounding system of claim 1, comprising: the power supply electrodes are in multiple groups, and the second power supply electrodes in each group of power supply electrodes are arranged in a circular array.

8. The sounding system of claim 1, wherein the measurement electrode is a non-polarizing electrode.

9. The sounding system of claim 1, wherein the first powered electrode and the third powered electrode are symmetric about the second powered electrode.

10. A depth sounding system according to any one of claims 1 to 9, wherein the electrode transducer comprises:

the controller is connected with the host and the driving module at one end, and is used for controlling the conduction of a corresponding switch in the switch module through the driving module according to the detection instruction so as to enable the host to supply power to the power supply electrode of the current group to be measured through the conducted switch and receive the measurement signal of the corresponding measurement electrode;

the driving module is connected with the switch module;

with the same quantity of electrode switch module, with the electrode one-to-one is connected, and every switch module all includes first switch, second switch, third switch and fourth switch, the common port that the first end of first switch, the first end of second switch, the first end of third switch and the first end of fourth switch are connected and connect is connected with the electrode that self corresponds, A power supply line is connected to the second end of first switch, and B power supply line is connected to the first end of second switch, M measuring wire is connected to the second end of third switch, N measuring wire is connected to the second end of fourth switch.

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