Grounding Reliability Assessment Method and Device Based on Charge Loss

Abstract

This invention relates to a method and apparatus for determining grounding reliability based on charge loss. The key technical points are: generating a single-element charge and introducing it into a grounding device; grounding the grounding device after introducing the single-element charge; measuring the grounding current and potential difference generated by the single-element charge during its movement; obtaining a grounding resistance based on the grounding current and a preset potential difference; determining the grounding reliability based on the grounding resistance; if the grounding resistance is within a preset threshold range, the grounding is determined to be reliable; if the grounding resistance is outside the preset threshold range, the grounding is determined to be unreliable. This application has the advantage of conveniently determining grounding reliability.

Description

Technical Field

[0001] This invention relates to the field of electrical engineering technology, and more specifically, to a method and apparatus for determining grounding reliability based on charge loss. Background Technology

[0002] The existing grounding grid is reliable because it is buried underground in advance and is a whole. However, the grounding copper pole is added later according to the production situation. When it is added, it needs to be welded to the grounding grid. Therefore, there is a problem with the grounding point. This grounding point may be corroded or have poor welding over a long period of time underground, which may cause the grounding resistance to rise and become unreliable.

[0003] Existing grounding wire connection reliability testing methods mainly use grounding resistance testers and manual testing at the grounding point. This requires manual current application, and the on-site wiring is difficult, costly, time-consuming, and prone to large measurement errors. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a grounding reliability judgment method and device based on charge loss, which has the advantage of conveniently judging grounding reliability.

[0005] The above-mentioned technical objective of this invention is achieved through the following technical solution: a grounding reliability judgment method based on charge loss, comprising:

[0006] Generate singlet charges and then introduce the singlet charges into the grounding device;

[0007] The grounding device is grounded after the singlet charge is introduced;

[0008] Measure the grounding current and potential difference generated by the singlet charge during its movement;

[0009] The grounding resistance is obtained based on the grounding current and the preset potential difference;

[0010] The determination is made based on the grounding resistance; if the grounding resistance is within a preset threshold range, the grounding is determined to be reliable; if the grounding resistance is outside the preset threshold range, the grounding is determined to be unreliable.

[0011] Optionally, the generation of singlet charges and the introduction of singlet charges into the grounding device includes:

[0012] A single-polarity charge is obtained by separating positive or negative charges in the power supply circuit using a unipolar capacitor.

[0013] The singlet charge is introduced into the power supply terminal of the grounding device for storage;

[0014] Monitor the voltage at the power supply terminal of the grounding device;

[0015] Determine whether the potential at the power supply terminal of the grounding device has reached a preset potential; if yes, disconnect the power supply circuit; if no, perform the step of introducing the single-type charge into the power supply terminal of the grounding device for storage.

[0016] Optionally, the grounding device after introducing singlet charges is grounded, including:

[0017] Connect the discharge terminal of the grounding device to the grounding wire;

[0018] The power supply terminal of the grounding device is connected to its discharge terminal after the introduction of single-type charge.

[0019] Optionally, the measurement of the grounding current and potential difference generated by the singlet charge during its movement includes:

[0020] The potential at the power supply terminal of the grounding device before grounding is measured to obtain the high potential potential.

[0021] The discharge terminal potential of the grounding device after grounding is measured to obtain the low potential potential.

[0022] The potential difference is calculated based on the high potential and the low potential.

[0023] Record the time it takes for the grounding device to generate charge movement;

[0024] The grounding current is obtained by the ratio of the charge generated by the potential difference to time.

[0025] Optionally, the step of calculating the potential difference based on the high potential and the low potential includes:

[0026] The potential difference is obtained by subtracting the low potential from the high potential and taking the absolute value.

[0027] A grounding reliability assessment device based on charge loss includes: a charge import module for generating single-type charges and importing the single-type charges into a grounding device;

[0028] A grounding preparation module is used to ground the grounding device after introducing singlet charges;

[0029] The potential measurement module is used to measure the grounding current and potential difference generated by the singlet charge during its movement.

[0030] A resistance calculation module is used to obtain the grounding resistance based on the grounding current and a preset potential difference;

[0031] The grounding determination module is used to make a judgment based on the grounding resistance; if the grounding resistance is within a preset threshold range, the grounding is determined to be reliable; if the grounding resistance is outside the preset threshold range, the grounding is determined to be unreliable.

[0032] Optionally, the charge import module includes:

[0033] The charge generation unit separates positive or negative charges in the power supply circuit to obtain single-polarity charges through a unipolar capacitor;

[0034] A charge storage unit is used to transfer the singlet charge into the power supply terminal of the grounding device for storage;

[0035] The potential monitoring unit is used to monitor the potential at the power supply terminal of the grounding device;

[0036] The potential determination unit is used to determine whether the potential at the power supply terminal of the grounding device reaches a preset potential; if yes, the power supply circuit is disconnected; if no, the step of introducing the single-type charge into the power supply terminal of the grounding device for storage is executed.

[0037] Optionally, the grounding preparation module includes:

[0038] A grounding connection unit is used to connect the discharge terminal of the grounding device to the grounding wire;

[0039] A grounding conduction unit is used to control the connection between the power supply terminal and the discharge terminal of the grounding device after the introduction of single-type charge.

[0040] Optionally, the potential measurement module includes:

[0041] A high-potential measurement unit is used to measure the potential at the power supply terminal of the grounding device before grounding to obtain the high-potential potential.

[0042] The ground potential measurement unit is used to measure the discharge terminal potential of the grounding device after grounding, and obtain the low potential potential.

[0043] A potential difference calculation unit is used to calculate the potential difference based on the high potential and the low potential.

[0044] A time recording unit is used to record the time it takes for the grounding device to generate charge movement.

[0045] The current calculation unit is used to obtain the grounding current based on the ratio of the charge generated by the potential difference to time.

[0046] Optionally, the grounding device includes: an operating lever, a grounding wire, a communication module, a positioning module, a pressure sensor, and a controller. A handle is provided at the lower end of the operating lever; a screw is provided at the top of the operating lever, and an L-shaped bracket is threaded onto the screw; the communication module, positioning module, pressure sensor, and controller are all located inside the operating lever; the communication module, positioning module, and pressure sensor are all electrically connected to the controller.

[0047] In summary, the present invention has the following beneficial effects: Since electric charge has unipolarity, in order to avoid the influence of charges of different polarities on the detection data, unipolar charges, i.e., single-polar charges, are used; after the single-polar charges are introduced into the grounding device, and the grounding device is grounded, the charges are quickly released to the ground under the tension of the charges. During the movement of the charges, current and potential difference are generated. The grounding resistance of the grounding wire can be obtained through the current and potential difference, and the grounding resistance is compared with a preset threshold range to determine whether the grounding is reliable. Attached Figure Description

[0048] Figure 1 This is a flowchart illustrating the grounding reliability assessment method based on charge loss according to the present invention.

[0049] Figure 2 This is a structural block diagram of the grounding reliability judgment device based on charge loss according to the present invention;

[0050] Figure 3 This is an internal structural diagram of a computer device in an embodiment of the present invention. Detailed Implementation

[0051] To make the objectives, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0053] In this invention, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0054] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0055] This invention provides a grounding reliability judgment method based on charge loss, such as... Figure 1 As shown, it includes:

[0056] Step 100: Generate singlet charges and introduce the singlet charges into the grounding device;

[0057] Step 200: Ground the grounding device after introducing singlet charges;

[0058] Step 300: Measure the grounding current and potential difference generated by the singlet charge during its movement;

[0059] Step 400: Obtain the grounding resistance based on the grounding current and the preset potential difference;

[0060] Step 500: Determine based on the grounding resistance; if the grounding resistance is within a preset threshold range, the grounding is determined to be reliable; if the grounding resistance is outside the preset threshold range, the grounding is determined to be unreliable.

[0061] In practical applications, since electric charges have unipolarity, unipolar charges, i.e., single-polar charges, are used to avoid the influence of charges of different polarities on the detection data. After the single-polar charges are introduced into the grounding device and the grounding device is grounded, they are quickly released to the ground under the tension of the charges. During the movement of the charges, current and potential difference are generated. The grounding resistance of the grounding wire can be obtained through the current and potential difference. The grounding resistance is compared with a preset threshold range to determine whether the grounding is reliable.

[0062] Further, the generation of singlet charges and the introduction of singlet charges into the grounding device includes:

[0063] Single-polarity charges are obtained by separating positive or negative charges in the power supply circuit using a unipolar capacitor.

[0064] The singlet charge is introduced into the power supply terminal of the grounding device for storage;

[0065] Monitor the voltage at the power supply terminal of the grounding device;

[0066] Determine whether the potential at the power supply terminal of the grounding device has reached a preset potential; if yes, disconnect the power supply circuit; if no, perform the step of introducing the single-type charge into the power supply terminal of the grounding device for storage.

[0067] In practical applications, since a unipolar capacitor only allows one type of charge to pass through, it can obtain a single polarity charge and conduct the charge from the wire into the power supply terminal of the grounding device for storage, causing the potential of the power supply terminal of the grounding device to continuously increase. After the potential of the power supply terminal of the grounding device reaches the preset potential, the power supply circuit is disconnected, thus completing the accumulation of the potential energy of the single polarity charge.

[0068] Optionally, the grounding device after introducing singlet charges is grounded, including:

[0069] Connect the discharge terminal of the grounding device to the grounding wire;

[0070] The power supply terminal of the grounding device is connected to its discharge terminal after the introduction of single-type charge.

[0071] In practical applications, after connecting the discharge terminal of the grounding device to the grounding wire under test, the power supply terminal and discharge terminal of the grounding device are connected to discharge.

[0072] Optionally, measuring the grounding current and potential difference generated by the singlet charge during its movement includes:

[0073] The potential at the power supply terminal of the grounding device before grounding is measured to obtain the high potential potential.

[0074] The discharge terminal potential of the grounding device after grounding is measured to obtain the low potential potential.

[0075] The potential difference is calculated based on the high potential and the low potential.

[0076] Record the time it takes for the grounding device to generate charge movement;

[0077] The grounding current is obtained by the ratio of the charge generated by the potential difference to time.

[0078] In practical applications, since the potential energy of the power supply end of the grounding device is accumulated before grounding, its potential is detected to obtain a high potential. Then, after the grounding device is connected to the grounding wire and turned on, the single-pointed charge is released from the discharge end of the grounding device to the ground. The potential of the discharge end of the grounding device after grounding is detected to obtain a low potential. The potential difference is obtained by subtracting the low potential from the high potential and taking the absolute value. The grounding current is obtained by calculating the ratio of the potential difference to the elapsed time.

[0079] like Figure 2 As shown, the present invention also provides a grounding reliability judgment device based on charge loss, comprising:

[0080] The charge import module 10 is used to generate singlet charges and import the singlet charges into the grounding device;

[0081] Grounding preparation module 20 is used to ground the grounding device after introducing singlet charges;

[0082] The potential measurement module 30 is used to measure the grounding current and potential difference generated by the single-pointed charge during its movement.

[0083] Resistance calculation module 40 is used to obtain the grounding resistance based on the grounding current and the preset potential difference;

[0084] The grounding determination module 50 is used to make a determination based on the grounding resistance; if the grounding resistance is within a preset threshold range, the grounding is determined to be reliable; if the grounding resistance is outside the preset threshold range, the grounding is determined to be unreliable.

[0085] Furthermore, the charge import module 10 includes:

[0086] The charge generation unit separates positive or negative charges in the power supply circuit to obtain single-polarity charges through a unipolar capacitor;

[0087] A charge storage unit is used to transfer the singlet charge into the power supply terminal of the grounding device for storage;

[0088] The potential monitoring unit is used to monitor the potential at the power supply terminal of the grounding device;

[0089] The potential determination unit is used to determine whether the potential at the power supply terminal of the grounding device reaches a preset potential; if yes, the power supply circuit is disconnected; if no, the step of introducing the single-type charge into the power supply terminal of the grounding device for storage is executed.

[0090] Furthermore, the grounding preparation module 20 includes:

[0091] A grounding connection unit is used to connect the discharge terminal of the grounding device to the grounding wire;

[0092] A grounding conduction unit is used to control the connection between the power supply terminal and the discharge terminal of the grounding device after the introduction of single-type charge.

[0093] Furthermore, the potential measurement module 30 includes:

[0094] A high-potential measurement unit is used to measure the potential at the power supply terminal of the grounding device before grounding to obtain the high-potential potential.

[0095] The ground potential measurement unit is used to measure the discharge terminal potential of the grounding device after grounding, and obtain the low potential potential.

[0096] A potential difference calculation unit is used to calculate the potential difference based on the high potential and the low potential.

[0097] A time recording unit is used to record the time it takes for the grounding device to generate charge movement.

[0098] The current calculation unit is used to obtain the grounding current based on the ratio of the charge generated by the potential difference to time.

[0099] The grounding device includes an operating lever, a grounding wire, a communication module, a positioning module, a pressure sensor, and a controller. A handle is located at the lower end of the operating lever; a screw is located at the top of the operating lever, and an L-shaped bracket is threaded onto the screw. The communication module, positioning module, pressure sensor, and controller are all housed within the operating lever; the communication module, positioning module, and pressure sensor are all electrically connected to the controller. This grounding device possesses functions such as grounding status monitoring, electric field induction, automatic positioning, and wireless communication. It detects whether the grounding is live using near-field electromagnetic wave detection technology, and detects whether the grounding is good using a resistive pressure sensor. Simultaneously, it automatically locates the grounding site and uploads grounding and location information. The device studies the judgment mechanism for grounding operations, guides safe grounding operations, collects and uploads operational data, and uses a satellite positioning system to determine and transmit the correctness of the task location, thus achieving comprehensive on-site operation management and improving the automation efficiency of process management and safety measure execution.

[0100] For specific limitations regarding a grounding reliability assessment device based on charge loss, please refer to the limitations of a grounding reliability assessment method based on charge loss described above, which will not be repeated here. Each module of the aforementioned grounding reliability assessment device based on charge loss can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in hardware or independently of the processor in a computer device, or stored in software in the memory of a computer device, so that the processor can call and execute the corresponding operations of each module.

[0101] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 3 As shown, the computer device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. When the computer program is executed by the processor, it implements a grounding reliability assessment method based on charge loss.

[0102] Those skilled in the art will understand that Figure 3 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0103] In one embodiment, a computer device is provided, including a memory and a processor. The memory stores a computer program, and the processor executes the computer program to perform the following steps: generating a singlet charge; introducing the singlet charge into a grounding device; grounding the grounding device after introducing the singlet charge; measuring the grounding current and potential difference generated by the singlet charge during its movement; obtaining a grounding resistance based on the grounding current and a preset potential difference; judging based on the grounding resistance; if the grounding resistance is within a preset threshold range, then the grounding is determined to be reliable; if the grounding resistance is outside the preset threshold range, then the grounding is determined to be unreliable.

[0104] In one embodiment, generating singlet charges and introducing the singlet charges into a grounding device includes: separating positive or negative charges in the power supply circuit to obtain singlet charges through a unipolar capacitor; introducing the singlet charges into the power supply terminal of the grounding device for storage; monitoring the potential of the power supply terminal of the grounding device; determining whether the potential of the power supply terminal of the grounding device reaches a preset potential; if yes, disconnecting the power supply circuit; if no, performing the step of introducing the singlet charges into the power supply terminal of the grounding device for storage.

[0105] In one embodiment, grounding the grounding device after introducing singlet charges includes: connecting the discharge terminal of the grounding device to a grounding wire; and controlling the power supply terminal of the grounding device after introducing singlet charges to be connected to its discharge terminal.

[0106] In one embodiment, measuring the grounding current and potential difference generated by the singlet charge during its movement includes: measuring the potential at the power supply terminal of the grounding device before grounding to obtain a high potential potential; measuring the potential at the discharge terminal of the grounding device after grounding to obtain a low potential potential; calculating the potential difference based on the high potential potential and the low potential potential; recording the time it takes for the charge to move through the grounding device; and obtaining the grounding current based on the ratio of the amount of charge generated by the potential difference to the time.

[0107] In one embodiment, calculating the potential difference based on the high potential and the low potential includes: subtracting the low potential from the high potential and taking the absolute value to obtain the potential difference.

[0108] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAM bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0109] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method for determining grounding reliability based on charge loss, characterized in that, include: Generate singlet charges and then introduce the singlet charges into the grounding device; The grounding device is grounded after the singlet charge is introduced; Measure the grounding current and potential difference generated by the singlet charge during its movement; The measurement of the grounding current and potential difference generated by the singlet charge during its movement includes: The potential at the power supply terminal of the grounding device before grounding is measured to obtain the high potential potential. The discharge terminal potential of the grounding device after grounding is measured to obtain the low potential potential. The potential difference is calculated based on the high potential and the low potential. Record the time it takes for the grounding device to generate charge movement; The grounding current is obtained from the ratio of the charge amount of the singlet charge to the time. The grounding resistance is obtained based on the grounding current and potential difference. The determination is made based on the grounding resistance; if the grounding resistance is within a preset threshold range, the grounding is determined to be reliable; if the grounding resistance is outside the preset threshold range, the grounding is determined to be unreliable.

2. The method according to claim 1, characterized in that, The generation of singlet charges and the introduction of singlet charges into the grounding device include: A single-polarity charge is obtained by separating positive or negative charges in the power supply circuit using a unipolar capacitor. The singlet charge is introduced into the power supply terminal of the grounding device for storage; Monitor the voltage at the power supply terminal of the grounding device; Determine whether the potential at the power supply terminal of the grounding device has reached a preset potential; if yes, disconnect the power supply circuit; if no, perform the step of introducing the single-type charge into the power supply terminal of the grounding device for storage.

3. The method according to claim 2, characterized in that, The grounding device after introducing singlet charges includes: Connect the discharge terminal of the grounding device to the grounding wire; The power supply terminal of the grounding device is connected to its discharge terminal after the introduction of single-type charge.

4. The method according to claim 1, characterized in that, The step of calculating the potential difference based on the high potential and the low potential includes: The potential difference is obtained by subtracting the low potential from the high potential and taking the absolute value.

5. A grounding reliability judgment device based on charge loss, characterized in that, include: A charge import module is used to generate singlet charges and import the singlet charges into a grounding device; A grounding preparation module is used to ground the grounding device after introducing singlet charges; The potential measurement module is used to measure the grounding current and potential difference generated by the singlet charge during its movement. The potential measurement module includes: A high-potential measurement unit is used to measure the potential at the power supply terminal of the grounding device before grounding to obtain the high-potential potential. The ground potential measurement unit is used to measure the discharge terminal potential of the grounding device after grounding, and obtain the low potential potential. A potential difference calculation unit is used to calculate the potential difference based on the high potential and the low potential. A time recording unit is used to record the time it takes for the grounding device to generate charge movement. A current calculation unit is used to obtain the grounding current based on the ratio of the charge amount of the single-electrode charge to the time. A resistance calculation module is used to obtain the grounding resistance based on the grounding current and potential difference; The grounding determination module is used to make a judgment based on the grounding resistance; if the grounding resistance is within a preset threshold range, the grounding is determined to be reliable; if the grounding resistance is outside the preset threshold range, the grounding is determined to be unreliable.

6. The apparatus according to claim 5, characterized in that, The charge import module includes: The charge generation unit separates positive or negative charges in the power supply circuit to obtain single-polarity charges through a unipolar capacitor; A charge storage unit is used to transfer the singlet charge into the power supply terminal of the grounding device for storage; The potential monitoring unit is used to monitor the potential at the power supply terminal of the grounding device; The potential determination unit is used to determine whether the potential at the power supply terminal of the grounding device reaches a preset potential; if yes, the power supply circuit is disconnected; if no, the step of introducing the single-type charge into the power supply terminal of the grounding device for storage is executed.

7. The apparatus according to claim 5, characterized in that, The grounding preparation module includes: A grounding connection unit is used to connect the discharge terminal of the grounding device to the grounding wire; A grounding conduction unit is used to control the connection between the power supply terminal and the discharge terminal of the grounding device after the introduction of single-type charge.

8. The apparatus according to claim 7, characterized in that, The grounding device includes: an operating lever, a grounding wire, a communication module, a positioning module, a pressure sensor, and a controller. A handle is provided at the lower end of the operating lever; a screw is provided at the top of the operating lever, and an L-shaped bracket is threaded onto the screw; the communication module, positioning module, pressure sensor, and controller are all located inside the operating lever; the communication module, positioning module, and pressure sensor are all electrically connected to the controller.

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