CN113514792A - Method and device for detecting signals at interface of modular electric energy meter and medium - Google Patents
Method and device for detecting signals at interface of modular electric energy meter and medium Download PDFInfo
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Abstract
The application discloses module type electric energy meter interface function detection method, after receiving the detection instruction, through obtaining the detection signal that electric energy meter kneck and detection instruction correspond, compare with the standard signal of prestoring, judge whether the detection signal accords with standard signal, if, affirm that detection signal is normal, if not, then affirm that detection signal is abnormal. By adopting the technical scheme, the detection signal at the interface of the electric energy meter is compared with the pre-stored standard signal, so that the detection of the signal at the interface of the modular electric energy meter is realized. The application also discloses a device and a medium for detecting the interface function of the modular electric energy meter, which correspond to the method for detecting the interface function of the modular electric energy meter and have the same effects as the above.
Description
Technical Field
The present application relates to the field of detection, and in particular, to a method, an apparatus, and a medium for detecting a signal at an interface of a modular electric energy meter.
Background
With the continuous push of new reform of the power system and the gradual popularization of emerging concepts, the development of distributed power supply access, four-meter-in-one, big data application, intelligent home and electric vehicle charging services once again puts higher requirements on the functions of the intelligent electric energy meter. Meanwhile, international legal metering organization also puts higher requirements on protection means of the metering performance of the intelligent electric energy meter in the latest revised international recommendation IR46 of the electric energy meter. Based on the current situation, the module type multi-core electric energy meter is produced at the same time. At present, the national power grid and the southern power grid propose novel technical schemes of modular electric energy meters.
The novel module type electric energy meter divides legal measurement part and illegal measurement part of the electric energy meter into different modules, hardware between the modules is independent, and each independent module is connected in a connector assembly mode. Meanwhile, the structure of the legal measurement part adopts a non-detachable mode, once the structure is assembled, the legal measurement part is changed into a black box, and the independence and the reliability of legal measurement in the application of an electric energy meter field are ensured. Since the output of the legal measurement part can affect the illegal measurement part, the detection of the signal at the interface of the modular electric energy meter becomes extremely important.
Therefore, how to detect the signal at the interface of the modular electric energy meter is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
The application aims to provide a method, a device and a medium for detecting signals at an interface of a modular electric energy meter, which are used for detecting the signals at the interface of the modular electric energy meter.
In order to solve the above technical problem, the present application provides a method for detecting a signal at an interface of a modular electric energy meter, including:
after receiving a detection instruction, acquiring a detection signal corresponding to the detection instruction at an electric energy meter interface according to the detection instruction;
calling a pre-stored standard signal;
and judging whether the detection signal meets the standard signal, if so, determining that the detection signal is normal, and if not, determining that the detection signal is abnormal.
Preferably, after the determining whether the detection signal meets the standard signal, the method further includes:
and sending a detection result for representing whether the detection signal is normal to the display equipment.
Preferably, the detection instruction includes:
a power supply load capacity detection instruction, a signal pulse width conformance detection instruction, a pulse per second precision detection instruction, a metering communication signal quality detection instruction and a power grid real-time data sampling and recording instruction;
correspondingly, the detection signal comprises: the system comprises a power supply load capacity detection signal, a signal pulse width detection signal, a pulse per second precision detection signal, a metering communication signal quality detection signal and a power grid real-time data sampling and recording signal.
Preferably, the detection instruction is a power load capability detection instruction, and the acquiring a detection signal specifically includes: and acquiring a detection signal of the power supply load capacity when different loads are accessed.
Preferably, the detecting instruction is a metering communication signal quality testing instruction, and after the determining whether the detection signal meets the standard signal, the method further includes:
calculating to obtain the Baud rate offset rate of the communication signal;
and sending the baud rate offset rate to a display device.
Preferably, the detection instruction is a power grid real-time data sampling and recording instruction, and after the detection signal is obtained, the method further includes:
storing the detection signal.
Preferably, after the storing the detection signal, the method further includes:
drawing a waveform curve graph according to the detection signal;
and sending the wave curve graph to a display device.
In order to solve the above technical problem, the present application further provides a detection apparatus for a signal at a module type electric energy meter interface, the apparatus includes:
the acquisition module is used for acquiring a detection signal corresponding to a detection instruction at an electric energy meter interface according to the detection instruction after receiving the detection instruction;
the calling module is used for calling the pre-stored standard signal;
and the judging module is used for judging whether the detection signal accords with the standard signal, if so, the detection signal is determined to be normal, and if not, the detection signal is determined to be abnormal.
In order to solve the above technical problem, the present application further provides another detection device for signals at a module type electric energy meter interface, the device includes:
a memory for storing a computer program;
and the processor is used for implementing the steps of the method for detecting the signals at the interface of the modular electric energy meter when the computer program is executed.
In order to solve the above technical problem, the present application further provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by a processor, implements the steps of the method for detecting signals at the interface of the modular electric energy meter.
According to the module type electric energy meter interface function detection method, after the detection instruction is received, the detection signal corresponding to the detection instruction at the electric energy meter interface is obtained and compared with the pre-stored standard signal, whether the detection signal meets the standard signal or not is judged, if yes, the detection signal is determined to be normal, and if not, the detection signal is determined to be abnormal. By adopting the technical scheme, the detection signal at the interface of the electric energy meter is compared with the pre-stored standard signal, so that the detection of the signal at the interface of the modular electric energy meter is realized.
The module type electric energy meter interface function detection device and the medium correspond to the module type electric energy meter interface function detection method, and the effect is the same as the effect.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for 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 application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a flowchart of a method for detecting a signal at an interface of a modular electric energy meter according to an embodiment of the present application;
fig. 2 is a flowchart of another method for detecting signals at an interface of a modular electric energy meter according to an embodiment of the present disclosure;
fig. 3 is a structural diagram of a detection apparatus for a signal at an interface of a modular electric energy meter according to an embodiment of the present application;
fig. 4 is a structural diagram of a detection apparatus for a signal at an interface of a modular electric energy meter according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide a method, a device and a medium for detecting signals at an interface of a modular electric energy meter, which are used for detecting the signals at the interface of the modular electric energy meter.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
Fig. 1 is a flowchart of a method for detecting a signal at an interface of a modular electric energy meter according to an embodiment of the present application, where as shown in fig. 1, the method includes:
s11: and after the detection instruction is received, acquiring a detection signal corresponding to the detection instruction at the interface of the electric energy meter according to the detection instruction.
In step S11, the detection command may be a specific command for detecting a certain signal or a command for detecting all signals. In specific implementation, the processor should be used in combination with the human-computer interaction device, an operator can control the processor through a local key and/or an upper computer, and before detection, the operator can select the type of the modular electric energy meter to be detected, such as a single-phase modular electric energy meter and a three-phase modular electric energy meter, through the local key and/or the upper computer; specification parameters such as voltage, current specification, pulse constant; and the quantity of the electric energy meters which need to be detected, based on the hardware reason, the scheme adopts eight connectors to connect the electric energy meter interface and the processor in practical application, so that the application supports the simultaneous detection of 8 electric energy meters. For the selection of the processor, in order to pursue better operation speed and more functions, a Field-Programmable Gate Array (FPGA) chip may be selected, and in order to reduce the cost, a Micro Controller Unit (MCU) may be used, or a combination of the two or another chip may be used. And after receiving the detection instruction, the processor acquires a detection signal corresponding to the detection instruction at the interface of the electric energy meter according to the detection instruction. The detection signal includes, but is not limited to, a power signal, a metering pulse signal, a pulse per second signal, a power down signal, a Universal Asynchronous Receiver/Transmitter (UART) communication signal, and a Serial Peripheral Interface (SPI) communication signal.
It should be noted that, in a specific implementation, signals at the electric energy meter interface often fluctuate, and if a detection signal is directly obtained from the electric energy meter interface, a situation that a test is inaccurate or an interface or a device is damaged may be caused, so that, in a general situation, signals at the electric energy meter interface often need to be preprocessed and then accessed to a server. The preprocessing includes Electro-Static discharge (ESD) protection, signal waveform shaping, signal isolation, and the like. Hardware required by ESD protection comprises a thermistor, a voltage regulator tube, a TVS tube, a solid discharge tube and the like, and is mainly used for protecting ESD on signals at an interface during hot plug and devices used for rear-stage isolation from potential high-voltage input damage under the condition of abnormal plug. The signal isolation includes but is not limited to power supply load switching control, power supply type signal A/D isolation, pulse type signal low-speed isolation and communication type signal high-speed isolation. Preferably, the pretreatment steps should be independent of each other and not affected.
S12: recall the pre-stored standard signal.
In step S12, the standard signal is pre-stored in the database and is called by the server when it is needed.
S13: and judging whether the detection signal meets the standard signal, if so, entering the step S131. If not, the process proceeds to step S132.
In step S13, it is determined whether the detection signal meets the standard signal, wherein the detection signal is determined to meet the standard signal when the detection signal completely meets the standard signal, or the detection signal is determined to meet the standard signal within a certain threshold error, and the error threshold range supports self-configuration.
S131: the detection signal is considered normal.
S132: the detection signal is deemed to be abnormal.
The detection method of module formula electric energy meter kneck signal that this application embodiment provided, after receiving the detection instruction, through obtaining the detection signal that electric energy meter kneck and detection instruction correspond, compare with the standard signal of prestoring, judge whether the detection signal accords with standard signal, if, affirm that detection signal is normal, if not, then affirm that detection signal is unusual. By adopting the technical scheme, the detection signal at the interface of the electric energy meter is compared with the pre-stored standard signal, so that the detection of the signal at the interface of the modular electric energy meter is realized.
In a specific implementation, the operator cannot know the result of the signal detection.
On the basis of the foregoing embodiment, in this embodiment, after determining whether the detection signal meets the standard signal, the method further includes sending a detection result indicating whether the detection signal is normal to the display device.
The detection method for the signals at the interface of the modular electric energy meter, provided by the embodiment of the application, sends the detection result to the display device after the signals are detected, so that an operator can timely and visually know the detection result. It can be understood that the processor may also be connected to an alarm device, such as an alarm light, and after the processor obtains the detection result, the alarm light is controlled to flash, so as to achieve the purpose of making the operator know the result of the signal detection.
In concrete implementation, the type of signal has a lot of at modular electric energy meter interface, and is corresponding, and the detection instruction also has a variety, and in this embodiment, the detection instruction includes:
the method comprises a power supply load capacity detection instruction, a signal pulse width conformance detection instruction, a pulse per second precision detection instruction, a metering communication signal quality detection instruction and a power grid real-time data sampling and recording instruction.
Correspondingly, the detecting signal comprises: the system comprises a power supply load capacity detection signal, a signal pulse width detection signal, a pulse per second precision detection signal, a metering communication signal quality detection signal and a power grid real-time data sampling and recording signal.
The power load capacity detection signal can be a power voltage amplitude, the signal pulse width detection signal can be a signal pulse width, the pulse-per-second precision detection signal can be a pulse-per-second signal width, the metering communication signal quality detection signal can be a communication pulse width of the metering communication signal, and the power grid real-time data sampling recording signal can be voltage, current, frequency, power factors and the like.
In specific implementation, when detecting the power load capacity, loads in different gears are often required to be replaced to detect the range of the power load capacity in order to better detect the power load capacity.
In this embodiment, the detection instruction is a power load capability detection instruction, and the acquiring of the detection signal specifically includes: and acquiring a detection signal of the power supply load capacity when different loads are accessed.
According to the method for detecting the signals at the interface of the modular electric energy meter, after the power load capacity detection instruction is received, the processor controls the power load switching circuit at the front end of the preprocessing circuit, and selects the loads at different gears, so that the processor can obtain the detection signals of the power load capacity when the different loads are connected, and the range of the power load capacity can be detected.
Fig. 2 is a flowchart of another method for detecting signals at an interface of a modular electric energy meter according to an embodiment of the present application, and as shown in fig. 2, in a specific implementation, in order to more intuitively reflect whether a metering communication signal is normal or not, on the basis of the foregoing embodiment, in this embodiment, a detection instruction is a metering communication signal quality test instruction, and after determining whether a detection signal meets a standard signal, the method further includes:
s14: and calculating to obtain the Baud rate offset rate of the communication signal.
In step S14, after the communication pulse width of the communication signal is measured at the electric energy meter interface, the baud rate of the communication signal is obtained through calculation, and the baud rate is compared with the stored standard baud rate and the baud rate offset rate is obtained through calculation.
S15: sending the baud rate offset rate to the display device.
According to the method for detecting the signals at the interface of the modular electric energy meter, after whether the detection signals meet the standard signals or not is judged, the baud rate of the detected communication signals is compared with the standard baud rate, the baud offset rate is obtained through calculation, then the result is sent to the display device, and whether the metering communication signals are normal or not can be reflected more visually.
In specific implementation, when the real-time data of the power grid is sampled, the acquired detection signal is stored for subsequent use.
In this embodiment, the detection instruction is a power grid real-time data sampling recording instruction, and after acquiring the detection signal, the method further includes:
the detection signal is stored.
According to the method for detecting the signals at the interface of the modular electric energy meter, provided by the embodiment of the application, when the real-time data of the power grid is sampled, the detection signals are stored, so that the historical data can be traced and used later.
When carrying out electric wire netting real-time data sampling, in order to better embody the real-time data of current electric energy meter measurement front end electric wire netting, after the storage detected signal, still include:
drawing a waveform curve chart according to the detection signal;
and sending the oscillogram to a display device.
According to the detection method for the signals at the interface of the modular electric energy meter, the waveform curve graph is drawn through the detection signals, and the waveform curve graph is sent to the display equipment, so that an operator can know real-time data of a power grid more intuitively and conveniently. Of course, the plotted waveform graph can also be a waveform graph under specific conditions, such as overvoltage, overcurrent, voltage loss, current imbalance, harmonic content, and the like.
When a pulse per second precision detection instruction is acquired, the pulse per second signal width of the electric energy meter can be detected. In this embodiment, a low-temperature-drift high-precision constant-temperature crystal oscillator is built in the processor, and can provide a standard clock source signal for the processor, and compare the standard clock source signal with the acquired pulse-per-second signal, so that whether the pulse-per-second signal width of the electric energy meter is normal or not can be detected, and the clock precision of the electric energy meter can be detected.
In the above embodiment, a method for detecting a signal at an interface of a modular electric energy meter is described in detail, and the application also provides an embodiment corresponding to a device for detecting a signal at an interface of a modular electric energy meter. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one from the perspective of the function module and the other from the perspective of the hardware.
Fig. 3 is a structural diagram of a device for detecting signals at an interface of a modular electric energy meter according to an embodiment of the present application, as shown in fig. 3, the device includes:
the acquisition module 10 is configured to acquire, after receiving the detection instruction, a detection signal corresponding to the detection instruction at the electric energy meter interface according to the detection instruction;
the calling module 11 is used for calling the pre-stored standard signal;
and the judging module 12 is configured to judge whether the detection signal meets the standard signal, if so, determine that the detection signal is normal, and if not, determine that the detection signal is abnormal.
The detection device of module formula electric energy meter kneck signal that this application embodiment provided, after receiving the detection instruction, through the detected signal that acquires electric energy meter kneck and detection instruction and correspond, compare with the standard signal of prestoring, judge whether detected signal accords with standard signal, if, affirm detected signal normal, if not, then affirm detected signal abnormal. By adopting the technical scheme, the detection signal at the interface of the electric energy meter is compared with the pre-stored standard signal, so that the detection of the signal at the interface of the modular electric energy meter is realized.
Since the embodiments of the apparatus portion and the method portion correspond to each other, please refer to the description of the embodiments of the method portion for the embodiments of the apparatus portion, which is not repeated here.
Fig. 4 is a structural diagram of another apparatus for detecting signals at an interface of a modular electric energy meter according to an embodiment of the present application, as shown in fig. 4, the apparatus includes: a memory 20 for storing a computer program;
and the processor 21 is used for implementing the steps of the method for detecting the signals at the modular electric energy meter interface according to the embodiment when executing the computer program.
The detection device for the signal at the interface of the modular electric energy meter provided by the embodiment may include, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, or the like.
The processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 21 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 21 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, the processor 21 may further include an AI (Artificial Intelligence) processor for processing a calculation operation related to machine learning.
The memory 20 may include one or more computer-readable storage media, which may be non-transitory. Memory 20 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used for storing the following computer program 201, wherein after being loaded and executed by the processor 21, the computer program can implement the relevant steps of the method for detecting signals at the interface of the modular electric energy meter disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202, data 203, and the like, and the storage manner may be a transient storage manner or a permanent storage manner. Operating system 202 may include, among others, Windows, Unix, Linux, and the like. Data 203 may include, but is not limited to, a supply voltage magnitude, a baud rate offset rate of a communication signal, and the like.
In some embodiments, the device for detecting signals at the interface of the modular electric energy meter may further include a display screen 22, an input/output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.
Those skilled in the art will appreciate that the configuration shown in fig. 4 does not constitute a limitation of the means for detecting signals at the modular power meter interface and may include more or fewer components than those shown.
The device for detecting signals at the interface of the modular electric energy meter, provided by the embodiment of the application, comprises a memory and a processor, wherein when the processor executes a program stored in the memory, the following method can be realized: and comparing the detection signal at the interface of the electric energy meter with a pre-stored standard signal to realize the detection of the signal at the interface of the modular electric energy meter.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps as set forth in the above-mentioned method embodiments.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The method, the device and the medium for detecting signals at the interface of the modular electric energy meter provided by the application are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A method for detecting signals at an interface of a modular electric energy meter is characterized by comprising the following steps:
after receiving a detection instruction, acquiring a detection signal corresponding to the detection instruction at an electric energy meter interface according to the detection instruction;
calling a pre-stored standard signal;
and judging whether the detection signal meets the standard signal, if so, determining that the detection signal is normal, and if not, determining that the detection signal is abnormal.
2. The method for detecting signals at an interface of a modular electric energy meter according to claim 1, wherein after the determining whether the detection signal meets the standard signal, the method further comprises:
and sending a detection result for representing whether the detection signal is normal to the display equipment.
3. The method of claim 1, wherein the detection instruction comprises:
a power supply load capacity detection instruction, a signal pulse width conformance detection instruction, a pulse per second precision detection instruction, a metering communication signal quality detection instruction and a power grid real-time data sampling and recording instruction;
correspondingly, the detection signal comprises: the system comprises a power supply load capacity detection signal, a signal pulse width detection signal, a pulse per second precision detection signal, a metering communication signal quality detection signal and a power grid real-time data sampling and recording signal.
4. The method for detecting signals at an interface of a modular electric energy meter according to claim 3, wherein the detection instruction is a power load capability detection instruction, and the acquiring of the detection signal specifically comprises: and acquiring a detection signal of the power supply load capacity when different loads are accessed.
5. The method for detecting signals at an interface of a modular electric energy meter according to claim 3, wherein the detection command is a metering communication signal quality test command, and after the determining whether the detection signal meets the standard signal, the method further comprises:
calculating to obtain the Baud rate offset rate of the communication signal;
and sending the baud rate offset rate to a display device.
6. The method for detecting signals at an interface of a modular electric energy meter according to claim 3, wherein the detection instruction is a power grid real-time data sampling and recording instruction, and after the detection signal is obtained, the method further comprises:
storing the detection signal.
7. The method of detecting a signal at an interface of a modular power meter of claim 6, further comprising, after said storing said detection signal:
drawing a waveform curve graph according to the detection signal;
and sending the wave curve graph to a display device.
8. A detection device for signals at a module type electric energy meter interface is characterized by comprising:
the acquisition module is used for acquiring a detection signal corresponding to a detection instruction at an electric energy meter interface according to the detection instruction after receiving the detection instruction;
the calling module is used for calling the pre-stored standard signal;
and the judging module is used for judging whether the detection signal accords with the standard signal, if so, the detection signal is determined to be normal, and if not, the detection signal is determined to be abnormal.
9. The device for detecting the signals at the interface of the modular electric energy meter is characterized by comprising a memory, a signal acquisition module and a signal processing module, wherein the memory is used for storing a computer program;
a processor for implementing the steps of the method for detecting signals at the interface of the modular electric energy meter according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, having a computer program stored thereon, which, when being executed by a processor, implements the steps of the method for detecting signals at an interface of a modular power meter according to any one of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114002643A (en) * | 2021-11-25 | 2022-02-01 | 国网北京市电力公司 | Electric energy meter detection method and device, electronic equipment and computer readable storage medium |
| CN117707875A (en) * | 2024-02-06 | 2024-03-15 | 西安简矽技术有限公司 | Method for generating test hardware circuit connection |
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