CN214278405U - Multi-functional fortune dimension terminal of electric energy meter with wiring analysis function - Google Patents
Multi-functional fortune dimension terminal of electric energy meter with wiring analysis function Download PDFInfo
- Publication number
- CN214278405U CN214278405U CN202022973245.6U CN202022973245U CN214278405U CN 214278405 U CN214278405 U CN 214278405U CN 202022973245 U CN202022973245 U CN 202022973245U CN 214278405 U CN214278405 U CN 214278405U
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- processing unit
- information acquisition
- wiring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 claims abstract description 37
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 230000006870 function Effects 0.000 description 8
- 230000001939 inductive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 102000003712 Complement factor B Human genes 0.000 description 1
- 108090000056 Complement factor B Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a multi-functional fortune of electric energy meter maintenance terminal with wiring analysis function belongs to the wiring and differentiates technical field. The terminal includes: the device comprises a power module, an information acquisition unit, a processing unit and a display unit; the power supply module is respectively connected with the information acquisition unit, the processing unit and the display unit and supplies power to the information acquisition unit, the processing unit and the display unit; the input end of the processing unit is connected with the information acquisition unit; the output end of the processing unit is connected with the display unit; the information acquisition unit is used for writing and reading the information of the electric energy meter; the processing unit is used for carrying out internal table look-up wiring judgment according to the collected voltage, current, power factor and phase angle of the electric energy meter; the display unit is used for displaying the wiring judgment result. Through the utility model discloses multiple information in the electric energy meter not only can be read at the terminal, can also distinguish electric energy meter field connection through the voltage electric current and the phase relation that read, guarantees that the electric energy meter wiring is correct, guarantees metering device correct work.
Description
Technical Field
The utility model belongs to the technical field of the wiring is differentiateed, concretely relates to multi-functional fortune of electric energy meter maintenance terminal with wiring analysis function.
Background
With the development of the power industry, an electric energy meter information acquisition system is an important component of a smart power grid and is deeply applied to various aspects of a power system; the operation and maintenance work is one of important works for guaranteeing the reliability and the high efficiency of the information acquisition of the electric energy meter, and is also the basis for guaranteeing the correct metering of the electric charge and the fair transaction of both the power supply and the power consumption. Therefore, it is very important to design a multifunctional operation and maintenance terminal that is convenient and fast on site.
In the prior art, the research on the operation and maintenance terminal of the electric energy meter does not directly relate to the intuitive on-site wiring analysis of the electric energy meter, and an efficient wiring judgment method is convenient for the operation and maintenance work of the electric energy meter to be developed, so that the wiring correctness of the electric energy meter and the accuracy of the metering work are ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving prior art's not enough, provide a multi-functional fortune dimension terminal of electric energy meter with wiring analysis function, not only can read multiple information in the electric energy meter through this terminal, can also carry out the analysis to the electric energy meter field connection.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a multi-functional fortune dimension terminal of electric energy meter with wiring analysis function, includes: the device comprises a power module, an information acquisition unit, a processing unit and a display unit;
the power supply module is respectively connected with the information acquisition unit, the processing unit and the display unit and supplies power to the information acquisition unit, the processing unit and the display unit;
the input end of the processing unit is connected with the information acquisition unit; the output end of the processing unit is connected with the display unit;
the information acquisition unit is used for writing and reading information of the electric energy meter, and the acquired information of the electric energy meter comprises voltage, current amplitude, phase angle and power factor;
the processing unit is used for carrying out internal table look-up wiring judgment according to the collected voltage, current, power factor and phase angle of the electric energy meter;
the display unit is used for displaying the wiring judgment result.
Further, it is preferable that the power module includes a lithium battery and an external power circuit.
Further, preferably, the information acquiring unit includes an infrared module and an RS485 module.
Further, preferably, the display unit is further configured to read and display the internal information of the electric energy meter.
Further, preferably, the processing unit performs internal table look-up analysis and judgment according to the collected voltage, current, power factor, phase angle and other information of the electric energy meter.
The utility model provides a multi-functional fortune dimension terminal of electric energy meter with wiring analysis function utilizes infrared module, RS485 module to read the electric energy meter data, realizes the wiring and differentiates. The terminal comprises a power module, a processing unit, an information acquisition unit and a display unit. The information acquisition unit comprises an RS485 and different infrared corresponding communication interfaces, reads the data of the electric energy meter in different modes and sends the data to the processing unit; the processing unit performs internal table look-up analysis and discrimination according to the read voltage, current, power factor and phase angle information of the electric energy meter; the wiring judgment result is visually displayed on the display unit, and the internal information of the electric energy meter can be copied and displayed.
Through the utility model discloses multiple information in the electric energy meter not only can be read at the terminal, can also carry out the analysis through the voltage electric current and the phase relation that read to the electric energy meter field connection, guarantees that the electric energy meter wiring is correct, guarantees metering device correct work.
Compared with the prior art, the utility model, its beneficial effect does:
(1) the device of the utility model has simple structure and is convenient for on-site use; (2) the information acquisition unit of the utility model adopts two modes of infrared and RS485, and is suitable for the field use in multiple environments; (3) the utility model can read and write in various information in the electric energy meter; (4) the utility model discloses a multi-functional fortune dimension terminal of electric energy meter with wiring analysis function to the accurate wiring of voltage is the basis, and the power factor, the phase angle that directly utilize to acquire carry out wiring discriminant analysis, and the result is accurate, the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of the utility model of an electric energy meter multifunctional operation and maintenance terminal with a wiring analysis function;
fig. 2 is a schematic structural diagram of the information acquisition unit of the present invention;
FIG. 3 is a schematic diagram of the wire connection judgment according to the present invention;
wherein, 1, a power supply module; 2. an information acquisition unit; 21. an infrared module; 22. an RS485 module; 3. a processing unit; 4. a display unit; arrows indicate data or signal progression.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The specific techniques, connections, conditions, or the like, which are not specified in the examples, are performed according to the techniques, connections, conditions, or the like described in the literature in the art or according to the product specification. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wirelessly connected. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "provided" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention is understood according to the specific situation.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The processing unit 3 in the embodiment of the present invention preferably uses an STM32 series of processors.
In the embodiment of the utility model, the RS485 module 22 preferably selects the serial port of the Shanghai Saite electronic RS485 interconverting TTL signal single chip microcomputer;
the embodiment of the utility model provides an in infrared module 21 is preferred to select for use infrared encoding and decoding module IR05 Fl.
As shown in fig. 1, a multifunctional operation and maintenance terminal with a connection analysis function for an electric energy meter includes: the system comprises a power module 1, an information acquisition unit 2, a processing unit 3 and a display unit 4;
the power module 1 is respectively connected with the information acquisition unit 2, the processing unit 3 and the display unit 4 and supplies power to the information acquisition unit 2, the processing unit 3 and the display unit 4;
the input end of the processing unit 3 is connected with the information acquisition unit 2; the output end of the processing unit 3 is connected with the display unit 4;
the information acquisition unit 2 is used for writing and reading information of the electric energy meter, and the acquired information of the electric energy meter comprises voltage, current amplitude, phase angle and power factor;
the processing unit 3 is used for carrying out internal table look-up and wiring judgment according to the collected voltage, current, power factor and phase angle of the electric energy meter;
the display unit 4 is used for displaying the wire connection judgment result.
The power module 1 comprises a lithium battery and an external power circuit, and can directly use the lithium battery to supply power to the terminal of the utility model and output a stable direct current power supply; also can do with external power supply the utility model discloses the terminal power supply exports stable DC power supply.
As shown in fig. 2, the information acquiring unit 2 includes an infrared module 21 and an RS485 module 22, and performs writing and reading operations of the electric energy acquisition data.
The display unit 4 is also used for reading and displaying the internal information of the electric energy meter.
The processing unit 3 analyzes the relationship between the voltage and the current of each phase on the premise that the voltage wiring is correct.
The display unit 4 visually displays the wiring judgment result and can simultaneously read and display the internal information of the electric energy meter.
The theoretical basis of the analysis of the processing unit 3 is as follows (but not limited thereto):
correct power factor angle between voltage and current for different load types of the processing unit 3 in combination with fig. 3
And analyzing on the theoretical basis of the corresponding load type. The utility model discloses the terminal can be to the wiring of three-phase four-wire and three-wire of three-phase and do effective analysis, explains according to different modes below.
Firstly, three-phase four-wire connection analysis is performed:
step 1-1: the information of the electric energy meter is read,
the voltage A phase is Ua, the current A phase is Ia, the phase angle A is an included angle between the Ua and the Ia, and the power factor is the cosine of the included angle between the Ua and the Ia;
the voltage phase B is Ub, the current phase B is Ib, the phase angle B is an included angle between the Ub and the Ib, and the power factor is cosine of the included angle between the Ub and the Ib;
the voltage C phase is Uc, the current C phase is Ic, the C phase angle is an included angle between Uc and Ic, and the power factor is cosine of the included angle between Uc and Ic;
step 1-2: acquiring four load types, wherein the four load types are respectively more than or equal to 0.5 inductive property, more than or equal to 0.5 capacitive property, less than 0.5 inductive property and less than 0.5 capacitive property;
step 1-3: defining: defining phase A as the present phase, then phase C as the former phase, and phase B as the latter phase; defining phase B as the present phase, then phase A as the former phase and phase C as the latter phase; defining phase C as the present phase, then phase B as the former phase, and phase A as the latter phase;
according to the measured phase angle, each phase is analyzed in sequence, a lookup table is shown in a table 1, the definitions of the steps 1-3 and the table 1 are prestored in a processing unit 3, and the processing unit 3 performs three-phase four-wire connection analysis by using the definitions of the steps 1-3 and the table 1;
TABLE 1 Wiring discriminant analysis table according to phase angle of each phase under different load types
Note: the utility model discloses a lower limit angle of phase angle belongs to [0, 360 degrees ] to the judgement scope of upper limit angle, and the lower limit angle is defined for open interval, and the upper limit angle is defined for closed interval, if utility model in be greater than or equal to 0.5 upper limit angle be 0 when perceptual, the lower limit angle be 60, the interval scope shows to (0, 60 degrees ], analogizes in proper order.
II, secondly: the three-phase three-wire connection analysis is carried out to show that:
step 2-1: the information of the electric energy meter is read,
the voltage A phase is Uab, the current A phase is Ia, the phase angle A phase is an included angle between the Uab and the Ia, and the power factor A phase is the cosine of the included angle between the Uab and the Ia;
the voltage B phase is 0, the current B phase is 0, the phase angle B phase is 0, and the power factor B phase is 0;
the voltage C phase is Ucb, the current C phase is Ic, the phase angle C phase is an included angle between Ucb and I, and the power factor C phase is cosine of the included angle between Ucb and Ic;
step 2-2: acquiring four load types which are respectively more than or equal to 0.5 inductive property, more than or equal to 0.5 capacitive property, less than 0.5 inductive property or less than 0.5 capacitive property;
step 2-3: according to the measured phase angle A, each phase is analyzed in sequence, and a lookup table is shown in a table 2; tables 2 and 3 are prestored in the processing unit 3, and the processing unit 3 utilizes the tables 2 and 3 to analyze the three-phase three-wire connection;
TABLE 2 Wiring discriminant analysis table according to phase angle A under different load types
Note: the utility model discloses a lower limit angle of phase angle belongs to [0, 360 ] to the judgement scope of upper limit angle, and the lower limit angle is defined for open interval, and the upper limit angle is defined for closed interval, and the upper limit angle is 30 when being greater than or equal to 0.5 perception, and the lower limit angle is 90, and the interval scope shows (30, 90 ], analogizes in proper order.
Step 2-4: according to the measured phase angle C, each phase is analyzed in sequence, and a lookup table is shown in a table 3;
TABLE 3 Wiring discriminant analysis table according to C phase angle under different load types
Note: the utility model discloses a lower limit angle of phase angle belongs to [0, 360 ] to the judgement scope of upper limit angle, and the lower limit angle is defined for open interval, and the upper limit angle is defined for closed interval, and the upper limit angle is 30 when being greater than or equal to 0.5 capacitive, and the lower limit angle is 90, and the interval scope shows (30, 90 ], analogizes in proper order.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a multi-functional fortune dimension terminal of electric energy meter with wiring analysis function which characterized in that includes: the system comprises a power module (1), an information acquisition unit (2), a processing unit (3) and a display unit (4);
the power module (1) is respectively connected with the information acquisition unit (2), the processing unit (3) and the display unit (4) and supplies power to the information acquisition unit (2), the processing unit (3) and the display unit (4);
the input end of the processing unit (3) is connected with the information acquisition unit (2); the output end of the processing unit (3) is connected with the display unit (4);
the information acquisition unit (2) is used for writing and reading information of the electric energy meter, and the acquired information of the electric energy meter comprises voltage, current amplitude, phase angle and power factor;
the processing unit (3) is used for carrying out internal table look-up wiring judgment according to the collected voltage, current, power factor and phase angle of the electric energy meter;
the display unit (4) is used for displaying the wire connection judgment result.
2. The electric energy meter multifunctional operation and maintenance terminal with the wiring analysis function as claimed in claim 1, wherein the power module (1) comprises a lithium battery and an external power circuit.
3. The electric energy meter multifunctional operation and maintenance terminal with the wiring analysis function as claimed in claim 1, wherein the information acquisition unit (2) comprises an infrared module (21) and an RS485 module (22).
4. The electric energy meter multifunctional operation and maintenance terminal with the wiring analysis function as claimed in claim 1, wherein the display unit (4) is further configured to read and display internal information of the electric energy meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022973245.6U CN214278405U (en) | 2020-12-11 | 2020-12-11 | Multi-functional fortune dimension terminal of electric energy meter with wiring analysis function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022973245.6U CN214278405U (en) | 2020-12-11 | 2020-12-11 | Multi-functional fortune dimension terminal of electric energy meter with wiring analysis function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214278405U true CN214278405U (en) | 2021-09-24 |
Family
ID=77782003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022973245.6U Active CN214278405U (en) | 2020-12-11 | 2020-12-11 | Multi-functional fortune dimension terminal of electric energy meter with wiring analysis function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214278405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763968A (en) * | 2020-12-11 | 2021-05-07 | 云南电网有限责任公司楚雄供电局 | Multi-functional fortune dimension terminal of electric energy meter with wiring analysis function |
-
2020
- 2020-12-11 CN CN202022973245.6U patent/CN214278405U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763968A (en) * | 2020-12-11 | 2021-05-07 | 云南电网有限责任公司楚雄供电局 | Multi-functional fortune dimension terminal of electric energy meter with wiring analysis function |
| CN112763968B (en) * | 2020-12-11 | 2025-07-15 | 云南电网有限责任公司楚雄供电局 | A multifunctional operation and maintenance terminal for electric energy meters with wiring analysis function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201413353Y (en) | Small Photovoltaic System Data Acquisition Tester | |
| CN201075117Y (en) | Single phase electric energy meter capable of avoiding fraudulent use of electricity | |
| CN110794207A (en) | Three-phase manganin sampling alternating current guide rail meter | |
| CN214278405U (en) | Multi-functional fortune dimension terminal of electric energy meter with wiring analysis function | |
| CN205749675U (en) | Harmonic detection test platform | |
| CN201532417U (en) | Electric quantity acquisition module | |
| CN203976235U (en) | Electric block energy efficiency testing device | |
| CN201181315Y (en) | Single-phase anti-electricity theft electric energy meter | |
| CN202794278U (en) | High-precision handheld type digital oscilloscope | |
| CN112763968B (en) | A multifunctional operation and maintenance terminal for electric energy meters with wiring analysis function | |
| CN2543242Y (en) | Power supply socket with multi-functional electric energy measurement module | |
| CN100378461C (en) | Single-phase anti-theft electricity meter and anti-theft electricity metering method | |
| CN202034002U (en) | Segment liquid crystal tester | |
| CN202918317U (en) | Data acquisition terminal on-site communication analyzer | |
| CN217085091U (en) | Multi-mode power factor measuring device | |
| CN215297646U (en) | Single-well electric energy meter field calibration device | |
| CN216052144U (en) | Automatic calibrating device of digital multimeter | |
| CN209151093U (en) | A kind of power analyzer for photovoltaic generating system | |
| CN210775646U (en) | Load test system | |
| CN209911478U (en) | Intelligent power distribution instrument | |
| CN202649306U (en) | Three-phase electrical parameter measuring device | |
| CN202383102U (en) | Multi-parameter online water quality analyzer | |
| CN207198315U (en) | The test device and system of electric power terminal | |
| CN201083813Y (en) | Electric motor intelligence test apparatus | |
| CN205749630U (en) | A kind of based on USB oscillographic general-purpose instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |