Power distribution terminal signal measurement method, device, equipment, circuit and storage medium

Abstract

The invention is suitable for the technical field of signal measurement, provides a power distribution terminal signal measurement method, device, equipment and circuit and a storage medium, is applied to a signal detection circuit, a to-be-measured signal in the signal detection circuit is connected with a wide-range ammeter and a small-range ammeter at the same time, and the method comprises the following steps: obtaining the reading of the wide-range ammeter and the reading of the small-range ammeter, respectively recording as a first measurement value and a second measurement value; calculating a difference value between the first measurement value and the second measurement value, and recording the difference value as a first difference value; and if the first difference value is smaller than or equal to the preset threshold value, obtaining a measurement value of the to-be-measured signal based on the first measurement value and the second measurement value. According to the invention, the size of the circuit signal can be accurately measured.

Description

Technical Field

[0001] The present application belongs to the field of signal measurement technology, and in particular, relates to a method, device, equipment, circuit and storage medium for measuring signals at a distribution terminal. Background Art

[0002] When testing circuit signals, it is usually first measured with a large-range meter and then with a small-range meter, thus obtaining two sets of readings. However, since it is not known whether the meter is faulty, the readings of the two meters cannot be used as the measurement results of the circuit's small signal.

[0003] Errors may occur when reading the two ranges. If it is determined whether there is a faulty meter in the two meters based on the readings at this time, the faulty meter may be identified as a normal meter, which will eventually lead to errors in the measurement results and the inability to accurately obtain the measurement results of the circuit signal. Summary of the invention

[0004] In order to overcome the technical problem of inaccurate measurement of power distribution terminal signals existing in the related art, the embodiments of the present application provide a power distribution terminal signal measurement method, device, equipment, circuit and storage medium.

[0005] This application is implemented through the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a method for measuring a power distribution terminal signal, comprising:

[0007] The reading of the large-range electric meter and the reading of the small-range electric meter are obtained and recorded as the first measurement value and the second measurement value respectively.

[0008] The difference between the first measurement value and the second measurement value is calculated and recorded as the first difference.

[0009] If the first difference is less than or equal to the preset threshold, a measurement value of the signal to be measured is obtained based on the first measurement value and the second measurement value.

[0010] In combination with the first aspect, in some possible implementations, the preset threshold is the sum of the maximum error value of the large-range meter and the maximum error value of the small-range meter.

[0011] In combination with the first aspect, in some possible implementations, the signal to be measured in the signal detection circuit is connected to the large-range electric meter and the small-range electric meter simultaneously through a mutual inductor.

[0012] In combination with the first aspect, in some possible implementations, obtaining a measurement value of the signal to be measured based on the first measurement value and the second measurement value includes:

[0013] If the second measured value is within the measuring range of the small-range electric meter, the second measured value is used as the measured value of the signal to be measured.

[0014] If the second measured value is not within the measuring range of the small-range electric meter, the first measured value is used as the measured value of the signal to be measured.

[0015] In conjunction with the first aspect, in some possible implementations, calculating a difference between the first measurement value and the second measurement value, recorded as a first difference, includes:

[0016] The first formula is used to calculate the difference between the first measurement value and the second measurement value, which is recorded as the first difference.

[0017] The first formula is:

[0018] P=||P1|-|P2||

[0019] Wherein, P represents the first difference, P1 represents the first measurement value, and P2 represents the second measurement value.

[0020] In combination with the first aspect, in some possible implementations, the method further includes:

[0021] If the first difference is greater than the preset threshold, it is determined that the large-range meter or the small-range meter is faulty.

[0022] In a second aspect, an embodiment of the present application provides a power distribution terminal signal measurement device, comprising:

[0023] The data acquisition module is used to acquire the reading of the large-range electric meter and the reading of the small-range electric meter, which are recorded as the first measurement value and the second measurement value respectively.

[0024] The difference calculation module is used to calculate the difference between the first measurement value and the second measurement value, which is recorded as the first difference.

[0025] The result output module is used to obtain the measurement value of the signal to be measured based on the first measurement value and the second measurement value if the first difference is less than or equal to a preset threshold.

[0026] In a third aspect, an embodiment of the present application provides a terminal device, comprising: a processor and a memory, the memory being used to store a computer program, and when the processor executes the computer program, the distribution terminal signal measurement method as described in any one of the first aspects is implemented.

[0027] In a fourth aspect, an embodiment of the present application provides a power distribution terminal signal measurement circuit, comprising: a mutual inductor, a large-range electric meter, a small-range electric meter, and a terminal device as described in the third aspect.

[0028] The terminal equipment is respectively connected with the mutual inductor, the large-range electric meter and the small-range electric meter.

[0029] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the distribution terminal signal measurement method as described in any one of the first aspects is implemented.

[0030] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0031] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0032] The present application uses a large-range meter and a small-range meter for measurement at the same time, and can obtain two readings (a first measurement value and a second measurement value) at the same time. The readings obtained at this time are at the same time, which is different from the traditional method of first measuring the reading of the large-range meter and then measuring the reading of the small-range meter. If the sum of the maximum values ​​of the errors of the two meters at this time is greater than the preset threshold, it can be directly determined that there is a meter that is damaged. If the sum of the maximum values ​​of the errors of the two meters is less than or equal to the preset threshold, it can be directly determined that there is no meter that is damaged. The measurement value of the signal to be measured can be directly obtained based on the first measurement value and the second measurement value. This method will not identify a faulty meter as a normal meter due to the difference in time, and can directly and accurately obtain the measurement value of the signal to be measured.

[0033] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 It is a flow chart of a method for measuring a power distribution terminal signal provided in an embodiment of the present application;

[0036] Figure 2 It is a structural schematic diagram of a power distribution terminal signal measurement device provided in one embodiment of the present application;

[0037] Figure 3 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0038] Figure 4 It is a schematic diagram of a power distribution terminal signal measurement circuit provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0040] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0041] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0042] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0043] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0044] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0045] The embodiment of the present application provides a method for measuring a signal at a power distribution terminal, which is applied to a signal detection circuit, wherein a signal to be measured in the signal detection circuit is simultaneously connected to a large-range electric meter and a small-range electric meter. Figure 1 is a schematic diagram of the process of the power distribution terminal signal measurement method provided by an embodiment of the present application, referring to Figure 1 , the signal measurement method of the power distribution terminal is described in detail as follows:

[0046] Step 101, obtaining a reading of a large-range electric meter and a reading of a small-range electric meter, which are recorded as a first measurement value and a second measurement value, respectively.

[0047] For example, Figure 4 As shown, the signal to be measured in the signal detection circuit can be connected to the large-range electric meter 402 and the small-range electric meter 403 at the same time through the mutual inductor 401.

[0048] Step 102, calculating the difference between the first measurement value and the second measurement value, recorded as the first difference.

[0049] Exemplarily, step 102 may include:

[0050] The first formula is used to calculate the difference between the first measurement value and the second measurement value, which is recorded as the first difference.

[0051] The first formula can be:

[0052] P=||P1|-|P2||

[0053] Wherein, P represents the first difference, P1 represents the first measurement value, and P2 represents the second measurement value.

[0054] Step 103: If the first difference is less than or equal to a preset threshold, a measurement value of the signal to be measured is obtained based on the first measurement value and the second measurement value.

[0055] Exemplarily, the preset threshold may be the sum of the maximum error value of the large-range meter and the maximum error value of the small-range meter.

[0056] Exemplarily, obtaining the measurement value of the signal to be measured based on the first measurement value and the second measurement value may include:

[0057] If the second measured value is within the measuring range of the small-range electric meter, the second measured value is used as the measured value of the signal to be measured.

[0058] If the second measured value is not within the measuring range of the small-range electric meter, the first measured value is used as the measured value of the signal to be measured.

[0059] Exemplarily, the power distribution terminal signal measurement method provided in this embodiment may further include:

[0060] If the first difference is greater than a preset threshold, it is determined that the large-range meter or the small-range meter is faulty.

[0061] Specifically, when a large-range electric meter or a small-range electric meter fails, the large-range electric meter or the small-range electric meter needs to be repaired or replaced in a timely manner.

[0062] The above-mentioned power distribution terminal signal measurement method uses a large-range meter and a small-range meter for measurement at the same time, and can obtain two readings (a first measurement value and a second measurement value) at the same time. The readings obtained at this time are at the same time, which is different from the traditional method of first measuring the reading of the large-range meter and then measuring the reading of the small-range meter. If the sum of the maximum values ​​of the errors of the two meters at this time is greater than the preset threshold, it can be directly determined that one of the meters is damaged. If the sum of the maximum values ​​of the errors of the two meters is less than or equal to the preset threshold, it can be directly determined that no meter is damaged. The measurement value of the signal to be measured can be directly obtained based on the first measurement value and the second measurement value. This method will not identify a faulty meter as a normal meter due to the difference in time, and can directly and accurately obtain the measurement value of the signal to be measured.

[0063] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0064] Corresponding to the power distribution terminal signal measurement method described in the above embodiment, Figure 2 A structural block diagram of a power distribution terminal signal measuring device provided in an embodiment of the present application is shown. For ease of explanation, only the parts related to the embodiment of the present application are shown.

[0065] See also Figure 2 , the power distribution terminal signal measuring device in the embodiment of the present application may include:

[0066] The data acquisition module 201 is used to acquire the reading of the large-range electric meter and the reading of the small-range electric meter, which are recorded as the first measurement value and the second measurement value respectively.

[0067] The difference calculation module 202 is used to calculate the difference between the first measurement value and the second measurement value, which is recorded as the first difference.

[0068] The result output module 203 is configured to obtain a measurement value of the signal to be measured based on the first measurement value and the second measurement value if the first difference is less than or equal to a preset threshold.

[0069] Exemplarily, the preset threshold may be the sum of the maximum error value of the large-range meter and the maximum error value of the small-range meter.

[0070] Exemplarily, the signal to be measured in the signal detection circuit is connected to the large-range electric meter and the small-range electric meter simultaneously through a mutual inductor.

[0071] Exemplarily, the result output module 203 may be used to:

[0072] If the second measured value is within the measuring range of the small-range electric meter, the second measured value is used as the measured value of the signal to be measured.

[0073] If the second measured value is not within the measuring range of the small-range electric meter, the first measured value is used as the measured value of the signal to be measured.

[0074] Exemplarily, the difference calculation module 202 may be used to:

[0075] The first formula is used to calculate the difference between the first measurement value and the second measurement value, which is recorded as the first difference.

[0076] The first formula is:

[0077] P=||P1|-|P2||

[0078] Wherein, P represents the first difference, P1 represents the first measurement value, and P2 represents the second measurement value.

[0079] Exemplarily, the result output module 203 may also be used for:

[0080] If the first difference is greater than a preset threshold, it is determined that the large-range meter or the small-range meter is faulty.

[0081] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0082] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0083] The present application also provides a terminal device, see Figure 3 The terminal device 300 may include: at least one processor 310 and a memory 320, wherein the memory 320 is used to store a computer program 321, and the processor 310 is used to call and run the computer program 321 stored in the memory 320 to implement the steps in any of the above-mentioned method embodiments, for example Figure 1 Steps 101 to 103 in the illustrated embodiment. Alternatively, when the processor 310 executes the computer program, the functions of each module / unit in the above-mentioned device embodiments are implemented, for example Figure 2 The functions of each module are shown.

[0084] Exemplarily, the computer program 321 may be divided into one or more modules / units, one or more modules / units are stored in the memory 320, and are executed by the processor 310 to complete the present application. The one or more modules / units may be a series of computer program segments that can complete specific functions, and the program segments are used to describe the execution process of the computer program in the terminal device 300.

[0085] Those skilled in the art will understand that Figure 3 It is only an example of a terminal device and does not constitute a limitation on the terminal device. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components, such as input and output devices, network access devices, buses, etc.

[0086] The processor 310 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0087] The memory 320 may be an internal storage unit of the terminal device, or an external storage device of the terminal device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. The memory 320 is used to store the computer program and other programs and data required by the terminal device. The memory 320 may also be used to temporarily store data that has been output or is to be output.

[0088] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0089] The power distribution terminal signal measurement method provided in the embodiment of the present application can be applied to terminal devices such as computers, wearable devices, vehicle-mounted devices, tablet computers, laptops, netbooks, etc. The embodiment of the present application does not impose any restrictions on the specific type of terminal devices.

[0090] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in each embodiment of the above-mentioned power distribution terminal signal measurement method can be implemented.

[0091] An embodiment of the present application provides a computer program product. When the computer program product runs on a mobile terminal, the mobile terminal can implement the steps in each embodiment of the above-mentioned power distribution terminal signal measurement method when executing the computer program product.

[0092] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may at least include: any entity or device that can carry the computer program code to the camera device / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a disk or an optical disk.

[0093] The present application also provides a power distribution terminal signal measurement circuit, such as Figure 4 As shown, it may include: a mutual inductor 401 , a large-range electric meter 402 , a small-range electric meter 403 and the above-mentioned terminal device 300 .

[0094] The terminal device 300 is connected to the mutual inductor 401 , the large-range electric meter 402 , and the small-range electric meter 403 , respectively.

[0095] The terminal device 300 can be used to control the primary winding of the mutual inductor 401 to be connected to the signal to be measured, and can also be used to control the large-range electric meter 402 and the small-range electric meter 403 to be connected to the secondary winding of the mutual inductor 401 respectively.

[0096] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0097] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0098] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0099] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0100] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for measuring a power distribution terminal signal, characterized in that: Applied to a signal detection circuit, the signal to be detected in the signal detection circuit is connected to a large-range electric meter and a small-range electric meter at the same time, and the method comprises: Obtaining a reading of a large-range electric meter and a reading of a small-range electric meter, and recording them as a first measurement value and a second measurement value respectively; Calculate the difference between the first measurement value and the second measurement value, and record it as a first difference; If the first difference is less than or equal to a preset threshold, a measurement value of the signal to be measured is obtained based on the first measurement value and the second measurement value.

2. The method for measuring power distribution terminal signals according to claim 1, characterized in that: The preset threshold is the sum of the maximum error value of the large-range meter and the maximum error value of the small-range meter.

3. The method for measuring power distribution terminal signals according to claim 1, characterized in that: The signal to be measured in the signal detection circuit is connected to the large-range electric meter and the small-range electric meter simultaneously through a mutual inductor.

4. The method for measuring power distribution terminal signals according to claim 1, characterized in that: The obtaining the measurement value of the signal to be measured based on the first measurement value and the second measurement value includes: If the second measured value is within the measuring range of the small-range electric meter, taking the second measured value as the measured value of the signal to be measured; If the second measurement value is not within the measuring range of the small-range electric meter, the first measurement value is used as the measurement value of the signal to be measured.

5. The method for measuring power distribution terminal signals according to claim 1, characterized in that: The calculating a difference between the first measurement value and the second measurement value, recorded as a first difference, includes: In combination with the first formula, a difference between the first measurement value and the second measurement value is calculated, which is recorded as a first difference; The first formula is: P=||P1|-|P2|| Wherein, P represents the first difference, P1 represents the first measurement value, and P2 represents the second measurement value.

6. The method for measuring power distribution terminal signals according to claim 1, characterized in that: The method further comprises: If the first difference is greater than the preset threshold, it is determined that the long-range meter or the small-range meter is faulty.

7. A power distribution terminal signal measuring device, characterized in that: include: A data acquisition module, used to acquire the reading of the large-range electric meter and the reading of the small-range electric meter, which are recorded as the first measurement value and the second measurement value respectively; A difference calculation module, used for calculating the difference between the first measurement value and the second measurement value, recorded as a first difference; A result output module is used to calculate the measurement value of the signal to be measured based on the first measurement value and the second measurement value if the first difference is less than or equal to a preset threshold.

8. A terminal device, comprising: A processor and a memory, wherein the memory stores a computer program that can be run on the processor, and wherein when the processor executes the computer program, the distribution terminal signal measurement method according to any one of claims 1 to 6 is implemented.

9. A power distribution terminal signal measurement circuit, characterized in that: include: A mutual inductor, a large-range electric meter, a small-range electric meter and a terminal device as claimed in claim 8; The terminal equipment is connected to the mutual inductor, the large-range electric meter and the small-range electric meter respectively.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the power distribution terminal signal measurement method according to any one of claims 1 to 6 is implemented.

Images