CN110988459A - Intelligent electric meter - Google Patents
Intelligent electric meter Download PDFInfo
- Publication number
- CN110988459A CN110988459A CN201911325111.9A CN201911325111A CN110988459A CN 110988459 A CN110988459 A CN 110988459A CN 201911325111 A CN201911325111 A CN 201911325111A CN 110988459 A CN110988459 A CN 110988459A
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- unit
- voltage
- current
- wifi communication
- distribution cabinet
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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
- G01R22/063—Details of electronic electricity meters related to remote communication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Abstract
The invention discloses an intelligent electric instrument, which comprises the following units: the electric quantity calculating unit is used for calculating the electricity consumption of the circuit in the power distribution cabinet; the WiFi communication unit is used for realizing data transmission through WiFi connection; the current sampling unit is used for acquiring current information of a sampling point; the voltage sampling unit is used for acquiring voltage information of sampling points; the background monitoring unit is used for acquiring information of electric quantity, voltage and current in the power distribution cabinet; the electric quantity computing unit is connected with the WiFi communication unit in a data mode, the WiFi communication unit is connected with the current sampling unit and the voltage sampling unit in a data mode, the WiFi communication unit acquires data acquired by the current sampling unit and the voltage sampling unit, the electric quantity computing unit calculates the electric quantity according to the data acquired by the WiFi communication unit, the background monitoring unit is connected with the electric quantity computing unit in a data mode through the WiFi communication unit, and the background monitoring unit monitors the power distribution cabinet according to the data acquired by the electric quantity computing unit.
Description
Technical Field
The invention relates to the technical field of electric quantity instrument equipment of electric quantity instruments, in particular to an intelligent electric quantity instrument.
Background
At present in the low-voltage distribution cabinet of complete set, the coulometer that uses generally carries out current acquisition through the mutual-inductor is wired, is connected to the backstage through the communication line and carries out the communication, the ubiquitous following problem:
1. current sampling: the mutual inductor is fixedly arranged on the copper bar and is connected to an interface of the electric quantity instrument through a sampling line on the mutual inductor; different installation positions and different lengths and trends of sampling lines are different, so that the scheme is difficult to standardize;
2. voltage sampling: the sampling point is connected to the fuse, and then the fuse is connected to the interface of the electric meter; the voltage sampling of each electric meter must be matched with 3 insurance, the calculated quantity of a large project is huge, and a large amount of installation space in a cabinet is occupied;
3. communication: a common manufacturer connects the communication of the instrument to a reserved terminal, and a user pulls a wire from the terminal to go to a background for monitoring through a special cable channel or a bridge;
4. above several wired accesses, the circuit span is long, and the use amount of electric wire is also not few, increases the cost, and the maintenance of the later stage causes not few difficulties.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
The applicant proposes an intelligent electric meter, aiming at solving the above problems.
Disclosure of Invention
In order to meet the requirements, the invention aims to provide an intelligent electric quantity instrument, aiming at thoroughly changing the wired connection method of the traditional power distribution cabinet without influencing the use of functions; after the wiring is cancelled, all the interfaces can be cancelled, the appearance structure of the product can be optimized, and the IP grade can be improved; can adopt original trompil size completely in the installation, owing to practiced thrift the use of electric wire, also can use the interior line of walking of cabinet to show neatly more and comfortable, can match and judge electric current or voltage signal.
In order to achieve the purpose, the invention adopts the following technical scheme:
a smart meter comprising the following units:
the electric quantity calculating unit is used for calculating the electricity consumption of the circuit in the power distribution cabinet;
the WiFi communication unit is used for realizing data transmission through WiFi connection;
the current sampling unit is used for acquiring current information of a sampling point;
the voltage sampling unit is used for acquiring voltage information of sampling points;
the background monitoring unit is used for acquiring information of electric quantity, voltage and current in the power distribution cabinet;
the power distribution cabinet monitoring system comprises a power calculation unit, a WiFi communication unit, a power calculation unit, a background monitoring unit and a voltage sampling unit, wherein the power calculation unit is in data connection with the WiFi communication unit, the WiFi communication unit is in data connection with the current sampling unit and the voltage sampling unit, the WiFi communication unit acquires data acquired by the current sampling unit and the voltage sampling unit, the power calculation unit calculates power according to the data acquired by the WiFi communication unit, the background monitoring unit is in data connection with the power calculation unit through the WiFi communication unit, and the background monitoring unit monitors the power distribution cabinet according to the data acquired by the power calculation unit;
the electric quantity calculating unit is located inside the power distribution cabinet, and partially located on the surface of the power distribution cabinet, the electric quantity calculating unit is located inside the power distribution cabinet and is used for achieving data connection with the current sampling unit and the voltage sampling unit, and the electric quantity calculating unit is located on the surface of the power distribution cabinet and is used for data connection with the background monitoring unit.
In a possible implementation manner, the current sampling unit and the voltage sampling unit are distributed around the WiFi communication unit by adopting a short-range wireless networking manner and based on the internet of things and a wireless transmission technology, and the current sampling terminal and the voltage sampling terminal can be added, deleted and moved within a communication range of the WiFi communication unit.
In a possible implementation manner, the WiFi communication unit creates a wireless local area network by matching a modbus protocol with an RS485 port protocol, and the current sampling unit and the voltage sampling unit are added to the wireless local area network to realize data connection.
In one possible embodiment, the current sampling unit comprises a voltage acquisition sensor and a wireless transmitter for wirelessly transmitting data acquired by the voltage acquisition sensor.
In one possible embodiment, the current sampling unit comprises a current transformer and a wireless transmitter for wirelessly transmitting data acquired by the current transformer.
In one possible embodiment, the electric quantity calculation unit includes an intelligent matching subunit configured to determine whether the acquired information is a voltage signal or a current signal.
In one possible embodiment, the background monitoring unit includes a display subunit, and the display subunit is configured to display information about power, current, and voltage.
In a possible implementation manner, the background monitoring unit further includes a power switch unit, and the power switch unit is used for controlling on/off of a power supply of the power distribution cabinet.
Compared with the prior art, the invention has the beneficial effects that: the intelligent electric quantity appearance of this scheme of adoption utilizes the Wifi communication and can receive the means of wireless acquisition signal and have following advantage:
1. the electric wire and the insurance are saved, the working time and the labor are saved, the cost is greatly reduced, and the core competitiveness of the project in the shelf life is improved;
2. the operation and maintenance are convenient, safe and reliable;
3. the communication is accessed to the Internet through WiFi, and then the data can be digitized, networked and intelligentized in the form of background monitoring, so that the monitoring and experience of multiple platforms are realized.
The invention is further described below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic diagram of a framework of an embodiment of a smart meter according to the present invention;
fig. 2 is a schematic structural diagram of an embodiment of a smart meter according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
As shown in fig. 1 and 2, a schematic diagram of an embodiment of an intelligent electric meter according to the present invention includes the following units:
the electric quantity calculating unit 100 is used for calculating the electricity consumption of the circuit in the power distribution cabinet;
a WiFi communication unit 200 for implementing data transmission through WiFi connection;
the current sampling unit 300 is used for acquiring current information of a sampling point;
the voltage sampling unit 400 is used for acquiring voltage information of sampling points;
the background monitoring unit 500 is used for acquiring information of electric quantity, voltage and current in the power distribution cabinet;
referring to fig. 1 and fig. 2, the electric quantity calculating unit 100 is in data connection with the WiFi communication unit 200, the WiFi communication unit 200 is in data connection with the current sampling unit 300 and the voltage sampling unit 400, the WiFi communication unit 200 acquires data acquired by the current sampling unit 300 and the voltage sampling unit 400, the electric quantity calculating unit 100 calculates the electric quantity according to the data acquired by the WiFi communication unit 200, the background monitoring unit 500 is in data connection with the electric quantity calculating unit 100 through the WiFi communication unit 200, and the background monitoring unit 500 monitors the power distribution cabinet according to the data acquired by the electric quantity calculating unit 100.
As a preferred embodiment, the electric quantity calculating unit 100 is partially located inside the power distribution cabinet, and partially located on the surface of the power distribution cabinet, the portion of the electric quantity calculating unit 100 located inside the power distribution cabinet is used for implementing data connection with the current sampling unit 300 and the voltage sampling unit 400, and the portion of the electric quantity calculating unit 100 located on the surface of the power distribution cabinet is used for data connection with the background monitoring unit
Specifically, because the switch board generally is metal material, wiFi communication unit 200 is difficult to pierce through, consequently, when electric quantity calculation unit 100 adopted the coulometer equipment, its back should be installed inside the switch board, sets up wireless receiver (like the wiFi receiver) at its back, sets up wireless transmitter (like the WiFi transmitter) at its panel portion (be located the switch board surface, so that the managers observe), can avoid metal material can not pierce through the problem of wiFi signal. The data connection between the internal current sampling unit 300 and the internal voltage sampling unit 400 and the electric quantity calculating unit 100 is preferably realized.
The WiFi communication unit accesses communication to the Internet through WiFi signals, and then goes to the background monitoring mode to digitize, network and intelligentize data, so that multi-platform monitoring and experience are realized, and therefore the background monitoring unit 500 can be realized in a remote mode.
In one possible embodiment, the current sampling unit 300 and the voltage sampling unit 400 distribute a plurality of current sampling terminals and voltage sampling terminals around the WiFi communication unit 200 by using a short-range wireless networking mode and based on the internet of things and wireless transmission technology, and the current sampling terminals and the voltage sampling terminals can be added, deleted and moved within the communication range of the WiFi communication unit 200.
Specifically, the current sampling unit 300 and the voltage sampling unit 400 may include, but are not limited to, a transformer mounted on a copper bar and fixed, and a voltmeter mounted at a sampling point.
As a preferred embodiment, the electric quantity calculating unit 100 can be installed by adopting the original opening size of the power distribution cabinet, so that the use of electric wires is saved, and the wiring display in the cabinet can be used to be tidier and more comfortable.
As a preferred embodiment, when the current sampling unit 300 and the voltage sampling unit 400 need to be installed outside the power distribution cabinet, the wireless signal is prevented from being shielded by metal;
or, the wireless transmitting devices of the current sampling unit 300 and the voltage sampling unit 400 are installed outside the power distribution cabinet.
As a preferred embodiment, the WiFi communication unit 200 creates a wireless local area network through modbus protocol in cooperation with RS485 port protocol, and the current sampling unit 300 and the voltage sampling unit 400 are added to the wireless local area network to implement data connection.
In a preferred embodiment, the current sampling unit 300 includes a voltage acquisition sensor and a wireless transmitter, such as a wifi transmitter, for wirelessly transmitting data acquired by the voltage acquisition sensor.
In a preferred embodiment, the current sampling unit 400 includes a current transformer and a wireless transmitter, such as a wifi transmitter, for wirelessly transmitting data acquired by the current transformer.
In a preferred embodiment, the power calculating unit 100 includes an intelligent matching subunit 101, and the intelligent matching subunit 101 is configured to determine whether the acquired information is a voltage signal or a current signal.
In a possible embodiment, the background monitoring unit 500 includes a display subunit 501, where the display subunit 501 is configured to display information about power, current, and voltage, and the display subunit 501 includes, but is not limited to, a display screen, and a manager may monitor a state of the power distribution cabinet in real time through the display screen.
In a possible embodiment, the background monitoring unit 500 further includes a power switch unit 502, the power switch unit is used to control the power on/off of the power distribution cabinet, specifically, when the power distribution cabinet is abnormal in state and needs to be powered off, a manager presses the power switch to power off, and the WiFi communication unit 200 can transmit an operation command to the power distribution cabinet to enable the power distribution cabinet to perform power off, so as to protect the safety of personnel and equipment property.
It should be noted that, as will be clear to those skilled in the art, the specific implementation process of the electronic module (unit) may refer to the corresponding description in the foregoing structural embodiment, and for convenience and brevity of description, no further description is provided herein.
Those of ordinary skill in the art will appreciate that the elements of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the components and units described above may refer to corresponding parts in the foregoing structural embodiments, and will not be described again here.
In the embodiments provided in the present invention, it should be understood that the disclosed units may be implemented in other manners. For example, the above-described module embodiments are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, more than one unit or component may be combined or may be integrated into another system, or some features may be omitted, or not implemented.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (8)
1. An intelligent electric instrument, comprising the following units:
the electric quantity calculating unit is used for calculating the electricity consumption of the circuit in the power distribution cabinet;
the WiFi communication unit is used for realizing data transmission through WiFi connection;
the current sampling unit is used for acquiring current information of a sampling point;
the voltage sampling unit is used for acquiring voltage information of sampling points;
the background monitoring unit is used for acquiring information of electric quantity, voltage and current in the power distribution cabinet;
the power distribution cabinet monitoring system comprises a power calculation unit, a WiFi communication unit, a power calculation unit, a background monitoring unit and a voltage sampling unit, wherein the power calculation unit is in data connection with the WiFi communication unit, the WiFi communication unit is in data connection with the current sampling unit and the voltage sampling unit, the WiFi communication unit acquires data acquired by the current sampling unit and the voltage sampling unit, the power calculation unit calculates power according to the data acquired by the WiFi communication unit, the background monitoring unit is in data connection with the power calculation unit through the WiFi communication unit, and the background monitoring unit monitors the power distribution cabinet according to the data acquired by the power calculation unit;
the electric quantity calculating unit is located inside the power distribution cabinet, and partially located on the surface of the power distribution cabinet, the electric quantity calculating unit is located inside the power distribution cabinet and is used for achieving data connection with the current sampling unit and the voltage sampling unit, and the electric quantity calculating unit is located on the surface of the power distribution cabinet and is used for data connection with the background monitoring unit.
2. The smart electric instrument according to claim 1, wherein the current sampling unit and the voltage sampling unit are configured to distribute a plurality of current sampling terminals and voltage sampling terminals around a WiFi communication unit by using short-range wireless networking and based on internet of things and wireless transmission technology, and the current sampling terminals and the voltage sampling terminals can be added, deleted and moved within a communication range of the WiFi communication unit.
3. The smart electric instrument according to claim 2, wherein the WiFi communication unit creates a wireless local area network by a modbus protocol in cooperation with an RS485 port protocol, and the current sampling unit and the voltage sampling unit are added to the wireless local area network to realize data connection.
4. The smart meter according to claim 2, wherein the current sampling unit includes a voltage acquisition sensor and a wireless transmitter for wirelessly transmitting data acquired by the voltage acquisition sensor.
5. The smart meter according to claim 2, wherein the current sampling unit includes a current transformer and a wireless transmitter for wirelessly transmitting data acquired by the current transformer.
6. The smart meter according to claim 1, wherein the power calculating unit includes a smart matching subunit for determining whether the acquired information is a voltage signal or a current signal.
7. The smart meter according to claim 1, wherein the background monitoring unit includes a display subunit for displaying power, current and voltage information.
8. The smart meter according to claim 1, wherein the background monitoring unit further comprises a power switch unit for controlling power on/off of a power distribution cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911325111.9A CN110988459A (en) | 2019-12-20 | 2019-12-20 | Intelligent electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911325111.9A CN110988459A (en) | 2019-12-20 | 2019-12-20 | Intelligent electric meter |
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| CN110988459A true CN110988459A (en) | 2020-04-10 |
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| CN101814226A (en) * | 2010-02-23 | 2010-08-25 | 南华大学 | Ammeter wireless monitoring interface devices and wireless monitoring system |
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| CN203965513U (en) * | 2014-07-16 | 2014-11-26 | 山西云之科技有限公司 | A kind of electric quantity monitoring instrument of remote monitoring |
| CN204856858U (en) * | 2015-05-29 | 2015-12-09 | 易微电（天津）科技发展有限公司 | Smart electric meter based on it is wireless from network deployment and modbus communication protocol |
| US20190086235A1 (en) * | 2017-09-20 | 2019-03-21 | Hepu Technology Development (Beijing) Co., Ltd. | Smart Power Meter |
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2019
- 2019-12-20 CN CN201911325111.9A patent/CN110988459A/en active Pending
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|---|---|---|---|---|
| CN101814226A (en) * | 2010-02-23 | 2010-08-25 | 南华大学 | Ammeter wireless monitoring interface devices and wireless monitoring system |
| CN202948044U (en) * | 2012-10-24 | 2013-05-22 | 江苏省电力公司连云港供电公司 | Voltage and current synchronous sampling device of high voltage device |
| CN203965513U (en) * | 2014-07-16 | 2014-11-26 | 山西云之科技有限公司 | A kind of electric quantity monitoring instrument of remote monitoring |
| CN204856858U (en) * | 2015-05-29 | 2015-12-09 | 易微电（天津）科技发展有限公司 | Smart electric meter based on it is wireless from network deployment and modbus communication protocol |
| US20190086235A1 (en) * | 2017-09-20 | 2019-03-21 | Hepu Technology Development (Beijing) Co., Ltd. | Smart Power Meter |
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