CN111060745A - Electric energy meter intelligent base with load identification function and implementation method - Google Patents
Electric energy meter intelligent base with load identification function and implementation method Download PDFInfo
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- CN111060745A CN111060745A CN201911246532.2A CN201911246532A CN111060745A CN 111060745 A CN111060745 A CN 111060745A CN 201911246532 A CN201911246532 A CN 201911246532A CN 111060745 A CN111060745 A CN 111060745A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/065—Details of electronic electricity meters related to mechanical aspects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
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Abstract
The invention discloses an electric energy meter intelligent base with a load identification function, which comprises a clamping type electric energy meter plug-in arranged at an outlet of an electric energy meter, a load identification control board and a current transformer; the clamping type electric energy meter plug-in is connected with the load identification control board, and the current transformer is connected with the load identification control board; the clamping type electric energy meter plug-in is used for connecting an electric energy meter, and the load identification control panel collects current and voltage of an outlet wire of the electric energy meter, temperature of a plug-in connector of the electric energy meter and information of a setting switch of the electric energy meter. The invention has compact hardware structure and uniform appearance, can be realized on the original electric energy meter connector without replacing the original electric energy meter or changing the wiring of the original electric energy meter, collects the current and voltage data of a user, and can realize the load identification function of the resident user through the analysis, calculation and processing of a self-specific algorithm, and can expand the functions of monitoring and diagnosis of subsequent power consumption, active reporting of power failure and other high-level power consumption measurement.
Description
Technical Field
The invention relates to a load identification method for an intelligent base of an electric energy meter with a load identification function, and belongs to the technical field of intelligent power grids and intelligent power utilization.
Background
With the improvement of the living standard of people in China, the demand of resident users on the service of lean electric power utilization is continuously increased. At present, a power grid company can only push daily total household power consumption information to a user, the power consumption condition of main electric appliances of the user is difficult to monitor, and further refined energy utilization services such as household energy efficiency assessment, household appliance working condition acquisition and the like cannot be provided for residents.
In order to solve the above problems, research and practical application of advanced measurement such as non-invasive load identification have been developed in China. There are two main types of non-invasive load identification devices that have been developed: the non-intrusive load identification terminal comprises a non-intrusive load identification terminal and an intelligent ammeter with a load identification function. The ammeter with the load identification function has the charging function of the traditional ammeter and also has the advanced measurement function of load identification, and is suitable for large-scale popularization.
The electric energy meter with the load identification function is very suitable for new users and can be directly installed and used; however, for the vast inventory market, the number of the electric meters reaches hundreds of millions of scales, and in order to realize the high-level demand of the electric power energy of the user, the original electric energy meter must be disassembled, and the electric energy meter with load identification is installed, so that huge capital investment is brought; meanwhile, the service life of some electric energy meters is short, which causes great waste of electric power materials. Meanwhile, the replacement, installation and construction workload of a huge amount of electric meters is large, and the cost of field implementation and production operation of an electric power company is increased, so that a new implementation method or a new implementation mode is urgently needed in the market, advanced measurement functions such as load identification of the electric energy meter can be realized, the original electric energy meter is not required to be greatly changed, and huge capital investment and material waste are not caused.
Disclosure of Invention
In order to solve the technical problem, the invention discloses an electric energy meter intelligent base with a load identification function, which comprises a clamping type electric energy meter plug-in arranged at an outlet of an electric energy meter, a load identification control board and a current transformer; the clamping type electric energy meter plug-in is connected with the load identification control board, and the current transformer is connected with the load identification control board;
the clamping type electric energy meter plug-in is used for connecting an electric meter,
the load identification function control panel is composed of a control bottom plate, a main CPU board and a temperature acquisition board and is used for acquiring current and voltage of an outlet wire of the electric energy meter, metal piece temperature of a connector assembly of the electric energy meter, setting switch information of the electric energy meter and the like.
Furthermore, joint formula electric energy meter connector is located load and discerns the control panel top, uses the row needle to connect each other.
Furthermore, the electric energy meter is inserted into the connector, and the metal insertion column of the electric energy meter is in interference fit with the wiring terminal of the electric energy meter.
Furthermore, the control floor is connected with the main CPU board through pins, the temperature acquisition board is connected with the control floor through a cable,
the load identification control panel comprises a current transformer acquisition interface, a sampling filter circuit, a communication interface and switching circuit, a power circuit and an indicator light circuit; the current transformer is connected to a sampling interface of the control bottom plate, a sampling signal enters the sampling filter circuit and is output to the contact pin after being filtered, the contact pin is connected with the control bottom plate and the main CPU board, and the sampling signal, power supply and other control signals are input to the main CPU board through the contact pin;
the temperature acquisition board acquires the temperature of the electric energy meter connector metal rod, outputs the temperature to the control bottom board through a cable to be connected, and finally sends the temperature to the main CPU board through the control bottom board and the contact pin of the main CPU to finish temperature signal acquisition.
Furthermore, the main CPU board comprises a microprocessor MCU, a FLASH and RAM storage circuit, a reset circuit and a communication control circuit; the microcontroller MCU is respectively connected with the FLASH, the RAM storage circuit, the reset circuit and the communication control circuit to realize the analysis and processing of data; the FLASH and RAM storage circuit stores processing and itemized algorithm programs and temporary data generated by calculation; the reset circuit realizes the reset of the whole hardware system; the communication control circuit realizes communication control interface circuits such as RS485 and the like.
Further, the current transformer outputs a small signal in a transformation ratio (3000:1) and is connected to the control bottom plate through a cable.
An implementation method of an electric energy meter intelligent base with a load identification function comprises the following steps:
step 1: the intelligent base is electrified for self-checking, and then whether an ammeter is in place is judged;
step 2: when the electricity meter is detected to be in place, switching a communication channel, accessing the electricity meter, and reading the number and other data of the electricity meter;
and step 3: after reading successfully, switching a communication channel, communicating with a collector in the electric meter box, and setting a normal collection mode;
and 4, step 4: collecting current and voltage data of a user, and carrying out load identification algorithm analysis processing;
and 5: temperature data, abnormal events are monitored, and identification results and other information are uploaded.
The invention has the beneficial effects that:
the invention relates to a method for realizing an intelligent base of an electric energy meter with a load identification function, which has the advantages of compact hardware structure and uniform appearance, can be realized on the original electric energy meter connector without replacing the original electric energy meter or changing the wiring of the original electric energy meter, collects user current and voltage data, can realize the load identification function of resident users through the analysis, calculation and processing of a self-specific algorithm, and can expand to realize the advanced power utilization measurement functions of monitoring and diagnosis of subsequent power utilization, active reporting of power failure and the like.
Drawings
FIG. 1 is a structural diagram of an intelligent base of an electric energy meter with a load identification function,
FIG. 2 is a hardware structure diagram of a load identification control board of an intelligent base of an electric energy meter with a load identification function,
FIG. 3 is a flow chart of software implementation of the intelligent base of the electric energy meter with load identification function.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
As shown in fig. 1, referring to fig. 1, the hardware structure of the intelligent base of the electric energy meter with the load identification function includes a clamping type electric energy meter connector, an identification function control board, and a current transformer.
The intelligent electric energy meter base is designed in a two-layer and stacking mode. The intelligent base that sees from the outside is whole, and it is the electric energy meter connector to be located the top, and this connector is special for the electric energy meter design, pegs graft the electric energy meter on this connector, and its metal is inserted and is realized interference fit with the binding post of electric energy meter, installation or the change electric energy meter that can be convenient fast.
Referring to fig. 2, the load identification function control board of the load identification base of the intelligent base of the electric energy meter with the load identification function is composed of a control bottom board, a main CPU board and a temperature acquisition board, and is used for acquiring current and voltage of an outlet wire of the electric energy meter, temperature of a metal piece of a connector of the electric energy meter, information of a setting switch of the electric energy meter and the like.
The control bottom plate is provided with a current transformer acquisition interface, a sampling filter circuit, a communication interface, a switching circuit, a power circuit, an indicator light circuit and the like. The current transformer is connected to a sampling interface of the control bottom plate, sampling signals enter the sampling filter circuit and are output to the contact pin after being filtered, the contact pin is connected with the control bottom plate and the main CPU board, and the sampling signals, power supply and other control signals are input to the main CPU board through the contact pin. The temperature acquisition board acquires the temperature of the electric energy meter connector metal rod, outputs the temperature to the control bottom board through a cable to be connected, and finally sends the temperature to the main CPU board through the control bottom board and the contact pin of the main CPU to finish temperature signal acquisition.
And the main CPU board comprises a microprocessor MCU, a FLASH and RAM storage circuit, a reset circuit, a communication control circuit and the like. The microcontroller MCU is connected with each functional circuit to realize the analysis and processing of data; the FLASH and RAM storage circuit stores processing and itemized algorithm programs and temporary data generated by calculation; the reset circuit realizes the reset of the whole hardware system; the communication control circuit realizes communication control interface circuits such as RS485 and the like.
And thirdly, the current transformer is a straight-through high-precision transformer, the sampling precision is ensured, and small signals are output in proportion and are connected to the control bottom plate through cables.
Referring to fig. 3, the method for implementing the intelligent base of the electric energy meter with the load identification function of the invention comprises the following steps:
step 1: the intelligent base is electrified and self-checked, and whether an ammeter is in place or not is judged;
step 2: if the ammeter is detected to be in place, switching a communication channel through the communication interface and the switching circuit, accessing the ammeter, and reading the number, current, voltage and power of the ammeter;
and step 3: after reading the information of the electric energy meter, switching a communication channel through a communication interface and a switching circuit, accessing a collector in the electric energy meter box, and setting a normal collection mode;
and 4, step 4: collecting current and voltage data of a user, and carrying out load identification algorithm analysis processing;
and 5: and monitoring temperature data, current and voltage, and uploading the identification result and the current, voltage and time information of the ammeter to the main CPU board.
The method for realizing the intelligent base of the electric energy meter with the load identification function has the advantages of compact hardware structure and uniform appearance, can be realized on the original electric energy meter connector without replacing the original electric energy meter or changing the wiring of the original electric energy meter, collects the current and voltage data of a user, can realize the load identification function of the resident user through the analysis, calculation and processing of a self-specific algorithm, and can expand to realize the advanced power utilization measurement functions of monitoring and diagnosis of subsequent power utilization, active reporting of power failure and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides an electric energy meter intelligent base with load identification function which characterized in that: the electric energy meter comprises a clamping type electric energy meter plug-in arranged at an electric energy meter outlet, a load identification control board and a current transformer; the clamping type electric energy meter plug-in is connected with the load identification control board, and the current transformer is connected with the load identification control board;
the clamping type electric energy meter plug-in is used for connecting an electric energy meter,
the load identification control panel comprises a control bottom plate, a main CPU board and a temperature acquisition board, and is used for acquiring current and voltage of an outlet wire of the electric energy meter, temperature of an electric energy meter connector and information of an electric energy meter setting switch.
2. The intelligent base of an electric energy meter with the load identification function as claimed in claim 1, wherein: the clamping type electric energy meter connector is located above the load identification control panel and is connected with the load identification control panel through a pin header.
3. The intelligent base of an electric energy meter with the load identification function as claimed in claim 2, wherein: the electric energy meter is inserted into the connector; the connector comprises a metal inserting column, and the metal inserting column is in interference fit with a wiring terminal of the electric energy meter.
4. The intelligent base of an electric energy meter with the load identification function as claimed in claim 1, wherein: the control bottom plate is connected with the main CPU board through a pin header, and the temperature acquisition board is connected with the control bottom plate through a cable.
5. The intelligent base of an electric energy meter with the load identification function as claimed in claim 2, wherein: the control bottom plate comprises a current transformer acquisition interface, a sampling filter circuit, a communication interface, a switching circuit, a power circuit and an indicator light circuit; the current transformer is connected to a current transformer acquisition interface, and a sampling signal enters a sampling filter circuit, is output to the pin header after being filtered, and is input to the main CPU board through the pin header;
the temperature acquisition board acquires the temperature of the metal column of the electric energy meter connector, outputs the temperature to the control bottom board through a cable, and finally conveys the main CPU board through a contact pin between the control bottom board and the main CPU to finish temperature signal acquisition.
6. The intelligent base of an electric energy meter with the load identification function as claimed in claim 1, wherein: the main CPU board comprises a microprocessor MCU, a FLASH and RAM storage circuit, a reset circuit and a communication control circuit; the microcontroller MCU is respectively connected with the FLASH, the RAM storage circuit, the reset circuit and the communication control circuit to realize the analysis and processing of data; the FLASH and RAM storage circuit stores processing and itemized algorithm programs and temporary data generated by calculation; the reset circuit realizes the reset of the whole hardware system; the communication control circuit realizes an RS485 communication control interface circuit.
7. The intelligent base of an electric energy meter with the load identification function as claimed in claim 1, wherein: the current transformer outputs small signals according to the transformation ratio of 3000:1 and is connected to the control bottom plate through a cable.
8. An implementation method of an electric energy meter intelligent base with a load identification function is characterized in that: the method comprises the following steps:
step 1, self-checking, namely electrifying the intelligent base for self-checking to judge whether the electric energy meter is in place;
step 2, switching electric meter channels: when the electric energy meter is detected to be in place, switching of a communication channel is carried out through a communication interface and a switching circuit, the electric energy meter is accessed, and the meter number, the current, the voltage and the power data of the electric energy meter are read;
step 3, switching an acquisition channel: after reading successfully, switching the communication channel through the communication interface and the switching circuit, accessing the collector in the electric energy meter box and communicating with the collector;
and 4, collecting data: collecting current and voltage data of a user, and carrying out load identification algorithm analysis processing;
and step 5, information transmission: and monitoring temperature data, current and voltage, and uploading the identification result and the current, voltage and time information of the ammeter to the main CPU board.
9. The intelligent base of an electric energy meter with the load identification function as claimed in claim 8, wherein: in the step 1, if no electric energy meter is in place, the operation is quitted; in the step 5, if the temperature data, the current and the voltage are abnormal, the operation is exited.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911246532.2A CN111060745A (en) | 2019-12-06 | 2019-12-06 | Electric energy meter intelligent base with load identification function and implementation method |
| PCT/CN2020/094987 WO2021109516A1 (en) | 2019-12-06 | 2020-06-08 | Electric energy meter intelligent base having load identification function, and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911246532.2A CN111060745A (en) | 2019-12-06 | 2019-12-06 | Electric energy meter intelligent base with load identification function and implementation method |
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| CN111060745A true CN111060745A (en) | 2020-04-24 |
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| CN201911246532.2A Pending CN111060745A (en) | 2019-12-06 | 2019-12-06 | Electric energy meter intelligent base with load identification function and implementation method |
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| WO (1) | WO2021109516A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109516A1 (en) * | 2019-12-06 | 2021-06-10 | 江苏智臻能源科技有限公司 | Electric energy meter intelligent base having load identification function, and implementation method |
| CN113433503A (en) * | 2021-08-26 | 2021-09-24 | 江苏智臻能源科技有限公司 | Self-diagnosis method of resident user load identification module |
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2019
- 2019-12-06 CN CN201911246532.2A patent/CN111060745A/en active Pending
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2020
- 2020-06-08 WO PCT/CN2020/094987 patent/WO2021109516A1/en active Application Filing
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| JPH03152477A (en) * | 1989-09-25 | 1991-06-28 | General Electric Co <Ge> | Electronic type energy meter of module structure |
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| CN113433503B (en) * | 2021-08-26 | 2022-02-18 | 江苏智臻能源科技有限公司 | Self-diagnosis method of resident user load identification module |
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| WO2021109516A1 (en) | 2021-06-10 |
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Application publication date: 20200424 |