CN104868325A - Electric meter socket - Google Patents

Electric meter socket Download PDF

Info

Publication number
CN104868325A
CN104868325A CN201510161640.5A CN201510161640A CN104868325A CN 104868325 A CN104868325 A CN 104868325A CN 201510161640 A CN201510161640 A CN 201510161640A CN 104868325 A CN104868325 A CN 104868325A
Authority
CN
China
Prior art keywords
micro
control unit
electric
socket
circuit
Prior art date
Application number
CN201510161640.5A
Other languages
Chinese (zh)
Inventor
黄燕凌
Original Assignee
上海阿乐乐可工业设计有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 上海阿乐乐可工业设计有限公司 filed Critical 上海阿乐乐可工业设计有限公司
Priority to CN201510161640.5A priority Critical patent/CN104868325A/en
Publication of CN104868325A publication Critical patent/CN104868325A/en

Links

Abstract

The invention discloses an electric meter socket comprising a micro-control unit, an electricity quantity detecting circuit, a data storage circuit, a data display circuit and a socket power supply circuit. Output current and voltage of the socket power supply circuit are measured by the electricity quantity detecting circuit, and real-time electricity quantity and accumulative electricity quantity are calculated. Real-time electricity charge and accumulative electricity charge are calculated by the micro-control unit, and the real-time electricity charge and the accumulative electricity charge are displayed. Electricity quantity used by the socket load can be simply and conveniently measured by the electric meter socket and can be simply and visually displayed so that flexible monitoring of electricity consumption and the electricity charge is facilitated for users.

Description

Ammeter socket
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of ammeter socket.
Background technology
At present, the ammeter that the metering of the electricity charge is installed mainly through power supply department is measured, in general be generally according to existing policy that Every household has an ammeter, added up by all power consumptions of total ammeter to family, but for user, when monitoring a certain period, a certain socket port electricity used and the electricity charge if want, then need in addition extra ammeter to be installed, transform original circuit, cost is higher, very inconvenience.
Summary of the invention
The object of the embodiment of the present invention there are provided a kind of ammeter socket, while providing supply socket function, realizes the flexible monitoring to power consumption and the electricity charge.
To achieve these goals, embodiments provide a kind of ammeter socket, comprise micro-control unit, electric-quantity monitoring circuit, data storage circuitry, data display circuit and socket power supply circuits;
Described socket power supply circuits, for providing power supply for load;
Described electric-quantity monitoring circuit, for measuring the output voltage of described socket power supply circuits and output current, according to described output voltage and described output current, calculates real time electrical quantity; Described real time electrical quantity is added up, obtains accumulative electricity; And described real time electrical quantity and described accumulative electricity are sent to described micro-control unit; Wherein, the accuracy of the described real-time electricity charge is more than 10,000 times or 10,000 times of the accuracy of the described accumulative electricity charge;
Described micro-control unit, is transmitted to described data storage circuitry by described real time electrical quantity and described accumulative electricity; And according to described real time electrical quantity and described accumulative electricity, calculate the real-time electricity charge and the accumulative electricity charge, the described real-time electricity charge and the accumulative electricity charge are sent to described data display circuit;
Described data display circuit, for showing the described real-time electricity charge and the described accumulative electricity charge;
Described data storage circuitry, for storing described real time electrical quantity and described accumulative electricity.
Wherein, described electric-quantity monitoring circuit comprises current sampling circuit, voltage sampling circuit and electric quantity metering chip;
Described voltage sampling circuit, for measuring the output voltage of described socket power supply circuits, and sends to described electric quantity metering chip;
Described current sampling circuit, for measuring the output current of described socket power supply circuits, and sends to described electric quantity metering chip;
Described electric quantity metering chip, for according to described output voltage and described output current, calculates real time electrical quantity; Described real time electrical quantity is added up, obtains accumulative electricity; And described real time electrical quantity and described accumulative electricity are sent to described micro-control unit.
Particularly, described current sampling circuit comprises sampling resistor R a, the first resistance R1, the second resistance R2, the first electric capacity C1 and the second electric capacity C2;
Described socket power supply circuits comprise live wire and zero line;
Described sampling resistor R abe serially connected on described live wire; And described sampling resistor R afirst end be connected with the first end of described first resistance R1, described sampling resistor R athe second end be connected with the first end of described second resistance R2;
Second end of described first resistance R1 is connected with described electric quantity metering chip;
The first end of described first electric capacity C1 is connected with the first end of described first resistance R1, the second end ground connection of described first electric capacity C1;
Second end of described second resistance R2 is connected with described electric quantity metering chip;
Described second electric capacity C2 is connected with second end of described second resistance R2, the second end ground connection of described second electric capacity C2;
Described voltage sampling circuit comprises series resistance group;
One end of described series resistance group is connected with described zero line, and the other end of described series resistance group is connected with described electric quantity metering chip.
Preferably, described ammeter socket also comprises key circuit;
Described key circuit is connected with described micro-control unit.
Wherein, described key circuit comprises button;
One end ground connection of described button, the other end of described button is connected with the control signal input of described micro-control unit.
Preferably, described data display circuit comprises display screen, and described display screen is electronic-paper display screen;
Described display screen is connected with described micro-control unit by I2C bus.
Preferably, described ammeter socket comprises housing, and described housing is polyhedral structure;
Described micro-control unit, electric-quantity monitoring circuit and data storage circuitry are arranged in described housing;
Described display screen is arranged on the wherein one side of described housing.
Preferably, the surface of described housing is also provided with supply hub;
Described supply hub is connected with the output of described socket power supply circuits.
Preferably, described button is arranged at described enclosure interior, and fits with the inner surface of described display screen.
Preferably, described button, for:
Within the very first time, by single depression, send the first control signal to described micro-control unit, interrupt or be communicated with the power supply input of described micro-control unit;
Within the second time, by twice pressing, send the second control signal to described micro-control unit, control described micro-control unit and the real-time electricity charge stored in described data storage circuitry are reset;
By Continued depression more than the 3rd time, send the 3rd control signal to described micro-control unit, control described micro-control unit and the cumulative electricity charge stored in described data storage circuitry are reset.
The present invention by socket power supply circuits for other electrical appliances provide power supply, by electric-quantity monitoring circuit, socket institute power consumption is measured, electricity charge calculating is carried out by micro-control unit, by data display circuit, the real-time electricity charge and the accumulative electricity charge are shown, electrical measurement is simple to operate, the display of electricity charge data is simple and clear directly perceived, easy to use, is conducive to user and monitors flexibly power consumption and the electricity charge.
Further, the present invention is by being arranged on a button below display screen, and user only needs to carry out operation to screen and can realize mains switch, the clearing of the electricity charge in real time and add up electricity charge Protection Counter Functions, can arrange the period of monitoring electricity flexibly, be simple and easy to use.
Simultaneously, along with the development of science and technology, the electric current that electronic equipment uses in holding state more comes less, and current most electronic product adopts DC power source adapter to charge, its charging current is also fainter usually, but ammeter product most on the market can not detect the kwh loss that weak current brings well, the present invention is by adopting high-precision sample circuit, substantially increase the detecting ability to weak current, its accuracy exceeds more than 10,000 times than most market product, the electricity expended under intuitively can showing micro-electric current using state, there is higher use value.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of an embodiment of socket ammeter provided by the invention;
Fig. 2 is the circuit diagram of electric-quantity monitoring circuit that provides of embodiment as shown in Figure 1;
Fig. 3 is the circuit diagram of the micro-control unit that provides of embodiment and key circuit as shown in Figure 1;
Fig. 4 is the circuit diagram of data display circuit that provides of embodiment as shown in Figure 1;
Fig. 5 is the product structure schematic diagram of an embodiment of the socket ammeter that the embodiment of the present invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, it is the electrical block diagram of an embodiment of socket ammeter provided by the invention.
As shown in Figure 1, described ammeter socket, comprising: MCU (Microcontroller Unit, micro-control unit) 100, socket power supply circuits 110, electric-quantity monitoring circuit 120, data storage circuitry 130 and data display circuit 140.
Described electric-quantity monitoring circuit 120, described data storage circuitry 130, described data display circuit 140 are connected with described micro-control unit 100 respectively.
Described electric-quantity monitoring circuit 120 is connected with described socket power supply circuits 110.
Described socket power supply circuits 110, for providing power supply for load.
Described electric-quantity monitoring circuit 120, for measuring the output voltage of described socket power supply circuits 110 and output current, according to described output voltage and described output current, calculates real time electrical quantity.Described real time electrical quantity is added up, obtains accumulative electricity.And described real time electrical quantity and described accumulative electricity are sent to described micro-control unit 100.
Described micro-control unit 100, is transmitted to described data storage circuitry 130 by described real time electrical quantity and described accumulative electricity.And according to described real time electrical quantity and described accumulative electricity, calculate the real-time electricity charge and the accumulative electricity charge, the described real-time electricity charge and the accumulative electricity charge are sent to described data display circuit 140.Particularly, the electricity charge of the described real-time electricity charge for using till manually resetting time up till now from the last time to the real-time electricity charge.The described accumulative electricity charge are the electricity charge used till the time up till now of dispatching from the factory.Wherein, the accuracy of the described real-time electricity charge is more than 10,000 times or 10,000 times of the accuracy of the described accumulative electricity charge; Even if weak current also can order about real-time electricity charge saltus step, the using state for electricity and the electricity charge is more directly perceived.
Described data display circuit 140, for showing the described real-time electricity charge and the described accumulative electricity charge.In the middle of concrete enforcement, described data display circuit can also show real-time voltage and/or current data further, can also show monetary unit natch, and is used as power supply instruction.
Described data storage circuitry 130, for storing described real time electrical quantity and described accumulative electricity.
Wherein, described electric-quantity monitoring circuit 120 comprises current sampling circuit, voltage sampling circuit and electric quantity metering chip U1.Described electric quantity metering chip U1 is preferably the electric quantity metering chip U1 of BX-7760 model.
The output of described current sampling circuit is connected with sample rate current input VIP, V1N of described electric quantity metering chip U1.
The output of described voltage sampling circuit is connected with sampled voltage input V3P, V3N of described electric quantity metering chip U1.
Electric quantity output end SCSN, SCLK, SD1, SD0 of described electric quantity metering chip U1 are connected with described micro-control unit 100.
Described voltage sampling circuit, for measuring the output voltage of described socket power supply circuits 110, and sends to described electric quantity metering chip U1.
Described current sampling circuit, for measuring the output current of described socket power supply circuits 110, and sends to described electric quantity metering chip U1.
Described electric quantity metering chip U1, for according to described output voltage and described output current, calculates real time electrical quantity.Described real time electrical quantity is added up, obtains accumulative electricity.And described real time electrical quantity and described accumulative electricity are sent to described micro-control unit 100.
See Fig. 2, it is the circuit diagram of electric-quantity monitoring circuit 120 that provides of embodiment as shown in Figure 1.
Particularly, described current sampling circuit comprises sampling resistor R a, the first resistance R1, the second resistance R2, the first electric capacity C1 and the second electric capacity C2.
Described socket power supply circuits 110 comprise live wire L and zero line N.
Described sampling resistor R abe serially connected on described live wire L.And described sampling resistor R afirst end be connected with the first end of described first resistance R1, described sampling resistor R athe second end be connected with the first end of described second resistance R2.
Second end of described first resistance R1 is connected with described electric quantity metering chip U1.
The first end of described first electric capacity C1 is connected with the first end of described first resistance R1, the second end ground connection of described first electric capacity C1.
Second end of described second resistance R2 is connected with described electric quantity metering chip U1.
Described second electric capacity C2 is connected with second end of described second resistance R2, the second end ground connection of described second electric capacity C2.
Described voltage sampling circuit comprises series resistance group R3 ~ R9.
One end of described series resistance group R3 ~ R9 is connected with described zero line N, and the other end of described series resistance group R3 ~ R9 is connected with described electric quantity metering chip U1.
Described current sampling circuit is by sampling with high precision resistance R athe electric current flowing through live wire L is sampled, by sampling, the current data obtained is input to electric quantity metering chip U1, live wire L port VIN is linked into chip internal, and described voltage sampling circuit carries out dividing potential drop by series resistance group R3 ~ R9, measures the voltage between live wire L and zero line N.Described electric quantity metering chip U1 calculates real time electrical quantity by internal algorithm, and adds up to described real time electrical quantity, obtains accumulative electricity.Signal transacting all in process is all completed by digital circuit, therefore has excellent temperature and time stability.
The present invention is by adopting high-precision sample circuit, and substantially increase the detecting ability to weak current, the electricity expended under intuitively can showing micro-electric current using state, has higher use value.
In addition, described electrical measurement circuit also comprises calibration circuit, described calibration circuit comprises optocoupler U2, described optocoupler is preferably the opto-coupler chip of TLP785 model, first pin of described optocoupler U2 is connected with the verification output PF of described electrical measurement chip, the second pin ground connection of described optocoupler U2, carries out error checking by the output signal of the 3rd pin and the 4th pin of checking described optocoupler U2.
In the middle of concrete enforcement, described socket ammeter also comprises key circuit 150.Described key circuit 150 is connected with described micro-control unit 100.
See Fig. 3, it is the circuit diagram of the micro-control unit 100 that provides of embodiment and key circuit 150 as shown in Figure 1.
As shown in Figure 3,
Described micro-control unit 100 is connected with described data display circuit 140 by terminal SCL, SDA.Described micro-control unit 100 is connected with described electric-quantity monitoring circuit 120 by terminals P _ SCSN, P_SCLK, P_SD1, P_SD0.Described micro-control unit 100 is connected with described data storage circuitry by terminals P _ SCL, P_SDA.
Described key circuit 150 comprises button K1.
One end ground connection of described button K1, the other end of described button K1 is connected with the control signal input PB1 of described micro-control unit 100.
See Fig. 4, it is the circuit diagram of data display circuit 140 that provides of embodiment as shown in Figure 1.
Described data display circuit 140 comprises display screen A1.Described display screen A1 is preferably electronic-paper display screen, by adopting described electronic-paper display screen A1, provides more excellent visual effect, also the power consumption of ammeter socket is greatly reduced, be conducive to conservation of power resource, also make ammeter socket more light simultaneously, be easy to carry.Described display screen A1 is connected with described micro-control unit 100 by I2C (Inter-Integrated Circuit) bus SCL, SDA.
In the middle of one is preferably implemented, described button K1 is arranged at the below of described display screen A1.
Described button K1 triggers by pressing described display screen A1.
In the middle of concrete enforcement, described button K1, for:
Within the very first time, by single depression (push button and upspring as once pressing), send the first control signal to described micro-control unit 100, interrupt or be communicated with the power supply input of described micro-control unit 100.Wherein, the described very first time is preferably 1S.
Within the second time, by twice pressing, send the second control signal to described micro-control unit 100, control described micro-control unit 100 and the real-time electricity charge stored in described data storage circuitry 130 are reset.Wherein, described second time is preferably 1S.Described clear operation is specially micro-control unit 100 and the data in described data storage circuitry 130 is emptied by house software.When needing the electricity consumption situation measured in certain period, only need, by double-clicking described button K1, after carrying out the clearing of real time electrical quantity, the real-time electricity charge can be recalculated, and without the need to resetting the accumulative electricity charge.
By Continued depression more than the 3rd time, the 3rd control signal is sent to described micro-control unit 100, control described micro-control unit 100 to reset the cumulative electricity charge stored in described data storage circuitry 130, while the cumulative electricity charge reset, the factory reset of described socket ammeter.Wherein, described 3rd time is preferably 10S.
The present invention is by being arranged on a button K1 below display screen A1, and user only needs to carry out operation to screen and can realize mains switch, the clearing of the electricity charge in real time and add up electricity charge Protection Counter Functions, can arrange the period of monitoring electricity flexibly, be simple and easy to use.
See Fig. 5, it is the product structure schematic diagram of an embodiment of the socket ammeter that the embodiment of the present invention provides.
Described ammeter socket comprises housing S1, and described housing S1 is polyhedral structure, and wherein, described polyhedron is preferably hexahedron.
Described micro-control unit 100, electric-quantity monitoring circuit 120 and data storage circuitry 130 are arranged in described housing S1.
Described display screen A1 is arranged on the wherein one side of described housing S1.
The surface of described housing S1 is also provided with supply hub H1.
Described supply hub H1 is connected with the output of described socket power supply circuits 110.
By being arranged in the shell of polyhedral structure by circuit, substantially reducing the volume of product, making described ammeter socket more lightly portable.
In sum, the present invention by socket power supply circuits 110 for other electrical appliances provide power supply, measured by electric-quantity monitoring circuit 120 pairs of socket institute power consumptions, electricity charge calculating is carried out by micro-control unit 100, by data display circuit 140, the real-time electricity charge and the accumulative electricity charge are shown, electrical measurement is simple to operate, and the display of electricity charge data is simple and clear directly perceived, easy to use.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims (10)

1. an ammeter socket, is characterized in that, comprises micro-control unit, electric-quantity monitoring circuit, data storage circuitry, data display circuit and socket power supply circuits;
Described socket power supply circuits, for providing power supply for load;
Described electric-quantity monitoring circuit, for measuring the output voltage of described socket power supply circuits and output current, according to described output voltage and described output current, calculates real time electrical quantity; Described real time electrical quantity is added up, obtains accumulative electricity; And described real time electrical quantity and described accumulative electricity are sent to described micro-control unit;
Described micro-control unit, is transmitted to described data storage circuitry by described real time electrical quantity and described accumulative electricity; And according to described real time electrical quantity and described accumulative electricity, calculate the real-time electricity charge and the accumulative electricity charge, the described real-time electricity charge and the accumulative electricity charge are sent to described data display circuit;
Described data display circuit, for showing the described real-time electricity charge and the described accumulative electricity charge;
Described data storage circuitry, for storing described real time electrical quantity and described accumulative electricity.
2. ammeter socket as claimed in claim 1, it is characterized in that, the accuracy of the described real-time electricity charge is more than 10,000 times or 10,000 times of the accuracy of the described accumulative electricity charge.
3. ammeter socket as claimed in claim 2, it is characterized in that, described electric-quantity monitoring circuit comprises current sampling circuit, voltage sampling circuit and electric quantity metering chip;
Described voltage sampling circuit, for measuring the output voltage of described socket power supply circuits, and sends to described electric quantity metering chip;
Described current sampling circuit, for measuring the output current of described socket power supply circuits, and sends to described electric quantity metering chip;
Described electric quantity metering chip, for according to described output voltage and described output current, calculates real time electrical quantity; Described real time electrical quantity is added up, obtains accumulative electricity; And described real time electrical quantity and described accumulative electricity are sent to described micro-control unit.
4. ammeter socket as claimed in claim 3, it is characterized in that, described current sampling circuit comprises sampling resistor R a, the first resistance R1, the second resistance R2, the first electric capacity C1 and the second electric capacity C2;
Described socket power supply circuits comprise live wire and zero line;
Described sampling resistor R abe serially connected on described live wire; And described sampling resistor R afirst end be connected with the first end of described first resistance R1, described sampling resistor R athe second end be connected with the first end of described second resistance R2;
Second end of described first resistance R1 is connected with described electric quantity metering chip;
The first end of described first electric capacity C1 is connected with the first end of described first resistance R1, the second end ground connection of described first electric capacity C1;
Second end of described second resistance R2 is connected with described electric quantity metering chip;
Described second electric capacity C2 is connected with second end of described second resistance R2, the second end ground connection of described second electric capacity C2;
Described voltage sampling circuit comprises series resistance group;
One end of described series resistance group is connected with described zero line, and the other end of described series resistance group is connected with described electric quantity metering chip.
5. ammeter socket as claimed in claim 1, is characterized in that, also comprise key circuit;
Described key circuit is connected with described micro-control unit.
6. ammeter socket as claimed in claim 5, it is characterized in that, described key circuit comprises button;
One end ground connection of described button, the other end of described button is connected with the control signal input of described micro-control unit.
7. ammeter socket as claimed in claim 6, it is characterized in that, described data display circuit comprises display screen, and described display screen is electronic-paper display screen;
Described display screen is connected with described micro-control unit by I2C bus.
8. ammeter socket as claimed in claim 7, it is characterized in that, described ammeter socket comprises housing, and described housing is polyhedral structure;
Described micro-control unit, electric-quantity monitoring circuit and data storage circuitry are arranged in described housing;
Described display screen is arranged on the wherein one side of described housing.
9. ammeter socket as claimed in claim 8, it is characterized in that, described button is arranged at described enclosure interior, and fits with the inner surface of described display screen.
10. the ammeter socket as described in any one of claim 6 ~ 9, is characterized in that, described button, for:
Within the very first time, by single depression, send the first control signal to described micro-control unit, interrupt or be communicated with the power supply input of described micro-control unit;
Within the second time, by twice pressing, send the second control signal to described micro-control unit, control described micro-control unit and the real-time electricity charge stored in described data storage circuitry are reset;
By Continued depression more than the 3rd time, send the 3rd control signal to described micro-control unit, control described micro-control unit and the cumulative electricity charge stored in described data storage circuitry are reset.
CN201510161640.5A 2015-04-07 2015-04-07 Electric meter socket CN104868325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510161640.5A CN104868325A (en) 2015-04-07 2015-04-07 Electric meter socket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510161640.5A CN104868325A (en) 2015-04-07 2015-04-07 Electric meter socket

Publications (1)

Publication Number Publication Date
CN104868325A true CN104868325A (en) 2015-08-26

Family

ID=53913971

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510161640.5A CN104868325A (en) 2015-04-07 2015-04-07 Electric meter socket

Country Status (1)

Country Link
CN (1) CN104868325A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2415366Y (en) * 2000-03-29 2001-01-17 河南思达电子仪器股份有限公司 Electronic type three-phase KWH meter
CN1445891A (en) * 2003-04-29 2003-10-01 武汉盛帆电子有限公司 Metering socket
CN2617058Y (en) * 2003-04-29 2004-05-19 武汉盛帆电子有限公司 Metering socket
CN102736691A (en) * 2011-04-13 2012-10-17 纬创资通股份有限公司 Flexible electronic device
CN203445354U (en) * 2013-06-13 2014-02-19 上海瑞涛信息技术有限公司 Energy consumption information monitoring system for electric appliances
CN204558814U (en) * 2015-04-07 2015-08-12 上海阿乐乐可工业设计有限公司 Ammeter socket

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2415366Y (en) * 2000-03-29 2001-01-17 河南思达电子仪器股份有限公司 Electronic type three-phase KWH meter
CN1445891A (en) * 2003-04-29 2003-10-01 武汉盛帆电子有限公司 Metering socket
CN2617058Y (en) * 2003-04-29 2004-05-19 武汉盛帆电子有限公司 Metering socket
CN102736691A (en) * 2011-04-13 2012-10-17 纬创资通股份有限公司 Flexible electronic device
CN203445354U (en) * 2013-06-13 2014-02-19 上海瑞涛信息技术有限公司 Energy consumption information monitoring system for electric appliances
CN204558814U (en) * 2015-04-07 2015-08-12 上海阿乐乐可工业设计有限公司 Ammeter socket

Similar Documents

Publication Publication Date Title
JP2012228170A (en) Integrated electric meter and electric vehicle charging station (evcs)
Rahman et al. Arduino and GSM based smart energy meter for advanced metering and billing system
CN101435838B (en) Apparatus for measuring capacitance capacity
CN102590609B (en) The method of mobile terminal and measurement mobile terminal power consumption
CN203339424U (en) Wireless intelligent energy consumption gauge
AU2019218021A1 (en) Non-intrusive load identification-based submetering smart electricity meter
CN103091637B (en) The battery electric quantity liquid crystal display device of accumulator system
CN103278669A (en) Multifunctional portable experiment device
CN103683348B (en) There is the electronic installation of power consumption detecting function
CN203133163U (en) Bidirectional-metering intelligent electric energy meter
CN206523625U (en) Multi-epitope electric energy meter on-site calibrator calibrating installation
CN105629052B (en) Chip power-consumption real-time detection method
CN202494742U (en) Multi function electric power quality collecting analyzer
CN102879635A (en) Energy consumption monitoring, subentry measuring and analysis warning system
CN103983845A (en) Distributed power supply connecting user double-direction metering and monitoring system and method
CN103326311B (en) Portable DC monitoring and protecting device
CN201740813U (en) Electric energy metering and monitoring meter
CN201926245U (en) Refrigerator with function of power consumption real-time display
CN101975902B (en) Intelligent detector for embedded system surge protection device (SPD)
Ali et al. Implementation of Automatic Meter Reading (AMR) using radio frequency (RF) module
CN202633672U (en) Intelligent socket with metering function
CN204177861U (en) A kind of precisely numerical monitor ac millivoltmeter
CN2906637Y (en) Battery power tester for electric bicycle
CN104459305B (en) Power detecting circuit
CN203786168U (en) Three-phase high-precision multifunctional electric energy meter

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
EXSB Decision made by sipo to initiate substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20150826

RJ01 Rejection of invention patent application after publication