CN110708398A - Intelligent electric meter - Google Patents
Intelligent electric meter Download PDFInfo
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- CN110708398A CN110708398A CN201911118565.9A CN201911118565A CN110708398A CN 110708398 A CN110708398 A CN 110708398A CN 201911118565 A CN201911118565 A CN 201911118565A CN 110708398 A CN110708398 A CN 110708398A
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- 230000005611 electricity Effects 0.000 claims abstract description 33
- 238000004891 communication Methods 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract 2
- 238000010168 coupling process Methods 0.000 claims description 29
- 230000008878 coupling Effects 0.000 claims description 28
- 238000005859 coupling reaction Methods 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000003993 interaction Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000013307 optical fiber Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/542—Systems for transmission via power distribution lines the information being in digital form
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The application discloses smart electric meter. One specific implementation mode of the intelligent electric meter comprises the following steps: ammeter body, set up first power line interface and the second power line interface on ammeter body, ammeter body includes: the power line monitoring system comprises a metering module, a communication module and a control module, wherein a first power line interface is connected with an input power line loaded with a power carrier signal, and a second power line interface is connected with an output power line. The metering module meters information related to the electricity consumption of the user; the communication module is used for processing the power carrier signals loaded in the input power line and converting the power carrier signals into Ethernet information; and the control module is used for determining the electricity utilization information of the user according to the preset logic and the metering information and sending the electricity utilization information to the terminal or the server. The implementation mode realizes the functions of metering and remote meter reading of the electricity consumption information of the user and provides network service for the user.
Description
Technical Field
The application relates to the technical field of remote meter reading, in particular to an intelligent electric meter.
Background
The electric power meter is metering equipment for power consumption management of a power management department, the intelligent electric meter has the metering function of basic power consumption of the traditional electric energy meter, and can also realize functions of automatic meter reading, automatic payment and the like, and the intelligent electric meter is also terminal equipment of an intelligent power grid. In order to adapt to the use of smart power grids and new energy, the intelligent power grid system also has intelligent functions such as bidirectional data communication functions with multiple data transmission modes and the like with bidirectional multiple rate metering functions.
Currently, in meter reading applications of smart grids, there are remote wireless meter reading methods or devices performed based on a wireless communication module built in a smart meter and a cell base station, and also there are remote wireless meter reading methods or devices that transmit electric quantity information to a server of a control center through a communication channel of a concentrator. The existing meter reading method or device needs to additionally arrange an optical fiber cable or a network base station, and for some regional users with scattered living, the fixed investment is large, and the cost of remote meter reading is high. Meanwhile, for regional users who have internet access requirements but have scattered residences, the erection of a network cable (such as an optical fiber or other communication cable) in addition to the erection of the power line causes problems of high investment cost and low use efficiency.
Disclosure of Invention
The application aims to provide an intelligent electric meter, and solves the technical problems mentioned in the background technology. The problems that in the remote meter reading application of the intelligent power grid, the fixed investment is large and the cost of the remote meter reading is high due to the fact that the remote meter reading is conducted based on a wireless communication module arranged in an intelligent electric meter or through optical fiber cable communication are solved.
The application provides a smart electric meter, this smart electric meter includes: above-mentioned smart electric meter includes the ammeter body, sets up first power line interface and second power line interface on above-mentioned ammeter body, and above-mentioned ammeter body includes: the first power line interface is connected with an input power line loaded with a power carrier signal, and the second power line interface is connected with an output power line; the metering module is connected between the first power line interface and the second power line interface through a power line and is used for metering information related to user electricity consumption; the communication module is connected to the first power line interface, and is used for processing the power carrier signal loaded in the input power line and converting the power carrier signal into Ethernet information; the control module is connected with the metering module and the communication module and used for determining the electricity utilization information of the user according to preset logic and the metering information and sending the electricity utilization information to the terminal or the server.
In some embodiments, the metering module includes a power metering unit and a charge calculating unit, an input of the power metering unit is connected to the input power line through the first power line interface, an output of the power metering unit is connected to an input of the charge calculating unit, and an output of the charge calculating unit is connected to the control module, wherein: the electric quantity metering unit is used for metering the electric quantity used by the user side load; the charge calculating unit is used for calculating the electricity consumption charge in the set charging period according to the electricity consumption.
In some embodiments, the electric meter body further includes a temperature and humidity module, and the temperature and humidity module is connected to the control module, and is configured to collect temperature and humidity in the inner case of the electric meter body, and send collected temperature information and humidity information to the control module.
In some embodiments, the communication module includes an information transceiver unit and a data processing unit, the information transceiver unit is connected to the input power line and a first end of the data processing unit, and a second end of the data processing unit is connected to an end user, wherein: the information transceiver unit is configured to transmit the received power carrier signal to the data processing unit, or load data of the data processing unit onto the power carrier line; the data processing unit is used for modulating or demodulating the received data and realizing the conversion between the power carrier signal and the Ethernet information.
In some embodiments, the data processing unit includes a key subunit, and the key subunit generates an encryption algorithm using preset logic, or generates a decryption algorithm, where the decryption algorithm is an algorithm for decoding data encrypted according to the encryption algorithm.
In some embodiments, the data processing unit includes an encryption subunit, and the encryption subunit encrypts the data to be encrypted according to an encryption algorithm.
In some embodiments, the data processing unit includes a decryption subunit, and the decryption subunit decrypts the segment data of the power carrier signal according to a decryption algorithm.
In some embodiments, the information transceiver unit includes a coupling subunit coupled to the input power line, and the coupling subunit receives the power carrier signal loaded from the input power line by coupling.
In some embodiments, the coupling sub-unit comprises a line trap, a coupling capacitor, a junction filter, and a high frequency cable, wherein: a first end of the line wave trap is connected to the incoming power line through the first power line interface, and a second end of the line wave trap is connected to the metering module; a first end of the coupling capacitor is connected to the incoming power line through the first power line interface, and a second end of the coupling capacitor is connected to the information transceiver unit through the high frequency cable after being connected in series with the combining filter.
In some embodiments, the coupling capacitor and the combining filter form a band pass filter.
According to the intelligent electric meter, the communication module is arranged in the intelligent electric meter body, the communication module processes power line carrier information loaded in a power line and converts the power line carrier information into Ethernet information, and a terminal user carries out information interaction based on the Ethernet information; the metering module meters the electricity consumption information of the user, the control module sends the electricity consumption information of the user to the user terminal or the control center, remote meter reading is achieved, and meanwhile network information interaction can be carried out on the user terminal without additionally arranging an optical fiber cable or a network base station.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a meter structure in an embodiment of the smart meter of the present application;
FIG. 2 is a schematic structural diagram of yet another embodiment of the dual core smart meter of the present application;
FIG. 3 is a schematic diagram of a component structure of the present application including a metering module.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of an embodiment of a smart meter to which the present application may be applied.
As shown in fig. 1, this smart electric meter includes ammeter body 1, sets up first power line interface 2 and second power line interface 3 on this ammeter body 1, and this ammeter body 1 includes: a metering module 10, a communication module 11 and a control module 12. The first power line interface 2 is connected to an input power line to which a power carrier signal is applied, and the second power line interface 3 is connected to an output power line.
In this embodiment, the electric meter body 1 is disposed in a housing of the smart electric meter, and the first power line interface 2 and the second power line interface 3 are power line interfaces. The first power line interface 2 is a wire inlet and is connected with a service line; the second power line interface 3 is an outlet and is connected to a load terminal of a user. The service line connected to the first power line interface 2 is an input power line to which a power carrier signal is applied.
In this embodiment, the metering module 10 is connected between the first power line interface 2 and the second power line interface 3 via a power line, and meters information related to the power consumption of the user. Here, the information related to the electricity usage of the user includes information on the amount of electricity used by the user in the billing period, the amount of electricity used in different electricity usage periods, and the electricity usage charge. The metering module 10 is also connected to the control module 12, and uploads or transmits the electricity consumption information of the user to the control module 12.
The communication module 11 is connected to the input power line through the first power line interface 2, processes a power carrier signal loaded on the input power line, and converts the processed power carrier signal into ethernet information. In a specific application, the communication module 11 may be a power line carrier that modulates and demodulates a power line carrier signal to convert the power line carrier signal into an ethernet signal. The terminal device connected to the communication module 11 may interact with the server via a network, and the connection is a network connection providing a communication link medium between the terminal device and the server, and may include various connection types, such as a wired connection, a wireless communication link, or a fiber optic cable. The terminal device may be various electronic devices having a display screen and supporting network interaction, including but not limited to a smart phone, a tablet computer, a portable computer, a desktop computer, and the like. Various communication client applications, such as a web browser application, a search application, social platform software, and the like, may be installed on the terminal device. The server may provide various services, such as a server that may be a power management application, or a server that provides a web browsing or search application class.
The control module 12 is connected to the metering module 10 and the communication module 11, and exchanges information with the metering module 10 and the communication module 11. The control module 12 determines the electricity consumption information of the user according to the preset logic and the metering information, and sends the electricity consumption information to the terminal or the server. Here, the preset logic is an operation program or a metering algorithm preset in the electric meter, and the charge calculation can be performed according to information such as electricity consumption, electricity consumption time and the like; and the electricity utilization information can be sent to an end user or a server according to the user requirement or the requirement of a power grid management center.
Further, in some preferred implementations, referring to fig. 2, fig. 2 shows a schematic structural diagram of a metering module, as shown in fig. 2, the metering module 10 includes a power metering unit 100 and a fee calculating unit 101, an input end of the power metering unit 100 is connected to the input power line through the first power line interface 2, an output end of the power metering unit 100 is connected to an input end of the fee calculating unit 101, and an output end of the fee calculating unit 101 is connected to the control module 12. In some specific implementations, the electric quantity metering unit 100 may be a unit or a module composed of an HLW8102 single-phase alternating current electric quantity metering chip and a peripheral circuit, and may measure chips such as active power, electric quantity, voltage effective value, current effective value, and the like, and a unit or a module composed of a peripheral circuit. The charge calculation unit 1002 calculates the electricity charge in a set charging period based on the electricity consumption information. Specifically, the charge calculation unit 101 calculates the electricity consumption in each period, and calculates the electricity consumption in different charging rule periods and the charges generated by the electricity consumption in each different charging rule period according to a preset charging logic. The fee calculation unit 101 may be a unit or module composed of an ADE7878 metering chip and peripheral circuits.
Further, referring to fig. 3, fig. 3 shows a schematic view of another embodiment of the smart meter of the present application, as shown in fig. 3, the meter body 1 further includes a temperature and humidity module 14, and the temperature and humidity module 14 is connected to the control module 12 and is configured to collect temperature and humidity in an inner shell of the meter body 1 and send collected temperature information and humidity information to the control module 12. Here, the humiture module 14 may be a module including a temperature sensing device and a humidity sensing device, and monitors whether the temperature and the humidity of the environment in the housing where the electricity meter body 1 is located are normal. When the temperature or the humidity is abnormal, the control module 12 sends warning information of the temperature or the humidity abnormality to a terminal user or a power network management center through a network channel through which the communication module 12 passes; the power supply of the power input line is disconnected under the necessary conditions (when the value of the temperature or humidity reaches or exceeds a set threshold).
In some preferred implementations, the communication module 11 includes an information transceiving unit and a data processing unit. The information transceiver unit is connected to the input power line and a first end of the data processing unit, and a second end of the data processing unit is connected to an end user. The information transceiver transmits the received power carrier signal to the data processing unit, or loads data of the data processing unit onto the power carrier line. The data processing unit modulates or demodulates the received data to realize the conversion between the power carrier signal and the Ethernet information.
In the foregoing implementation manner of this embodiment, the information transceiver unit implements information transceiving, specifically: receiving a power line carrier signal loaded by a power line, or receiving information sent by a user terminal; the processed data of the data processing unit 2002 is transmitted to a user terminal or a server.
The data processing unit realizes conversion between the power carrier signal and the Ethernet signal. Specifically, the power carrier signal received from the information transceiver unit is modulated and demodulated and then converted into ethernet information, and the end user performs network interaction based on the ethernet information.
Further, in some preferred implementations, the data processing unit includes a key subunit, an encryption subunit, and a decryption subunit. The key subunit generates an encryption algorithm or a decryption algorithm by using a preset logic. The decryption algorithm here is an algorithm corresponding to the encryption algorithm, and is an algorithm for decoding data encrypted by the encryption algorithm.
And the encryption subunit encrypts the data to be encrypted according to an encryption algorithm. Data sent in the control module 12 to the grid management centre needs to be transmitted over the power line loaded with the power carrier signal. Here, the encryption subunit encrypts data transmitted to the power grid management center according to the encryption algorithm, and further, the encryption subunit encrypts data transmitted to a server or other terminal device through the power input line. The decryption subunit decrypts the segment data of the power carrier signal according to a decryption algorithm.
In some implementations of this embodiment, the information transceiver unit includes a coupling subunit coupled to the input power line, and the coupling subunit receives the power carrier signal loaded from the input power line through a coupling method.
Further, the above coupling sub-unit includes a line trap, a coupling capacitor, a coupling filter, and a high frequency cable, wherein: a first end of the line wave trap is connected to the incoming power line through the first power line interface 2, and a second end of the line wave trap is connected to the metering module; a first end of the coupling capacitor is connected to the input power line through the first power line interface 2, and a second end of the coupling capacitor is connected to the information transmitting/receiving unit through the high frequency cable after being connected in series with the coupling filter.
In the above embodiment, the coupling capacitor is connected between the coupling filter and the power line, and has a performance of withstanding a high voltage. The coupling capacitor and the combined filter transmit power carrier signals between the power line and the high-frequency cable, and impedance matching between the line side and the carrier side is achieved. The coupling capacitor and the combined filter form a band-pass filter, and the band-pass filter passes through a high-frequency carrier signal and prevents power frequency high voltage and power frequency current in a power line from entering carrier equipment. The line wave trap blocks the shunting of high-frequency signals of the line and can be composed of a strong current coil, a tuning element and a protection element. In particular use, the shunt loss should not exceed 2.6 dB.
In the embodiment of the application, a communication module of the intelligent electric meter converts a power line carrier signal received from a power line into an Ethernet signal, a metering module meters the power utilization information of a user, and a control module controls and receives the metering module information and sends the power utilization information to a user terminal or a power network management center. Compared with the prior art, the method has the following beneficial effects:
communication cables such as optical fibers and the like are not required to be additionally erected, and the power carrier signals loaded by the input power line are converted into Ethernet signals through the communication module, so that interaction between terminal equipment of a user side and a network server is realized; for some regional users with unconcentrated resident groups, the cost for surfing the Internet is obviously reduced;
based on the Ethernet information converted by the communication module of the intelligent electric meter, the power management center can realize remote meter reading, and the user terminal can acquire the power utilization information in real time;
the user terminal performs network interaction based on the Ethernet information, such as various network interaction activities of web page browsing, search application, mailbox service, application of social software and the like;
the control module may send power consumption information to the user terminal or the power grid management center, and may also receive indicative information sent by the user terminal or the power grid management center, such as an instruction to cut off power supply to the load.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. The utility model provides a smart electric meter, its characterized in that, smart electric meter include the ammeter body, set up in first power line interface and second power line interface on the ammeter body, the ammeter body includes: the power line monitoring system comprises a metering module, a communication module and a watching module, wherein a first power line interface is connected with an input power line loaded with a power carrier signal, and a second power line interface is connected with an output power line;
the metering module is connected between the first power line interface and the second power line interface through a power line and is used for metering information related to user electricity consumption;
the communication module is connected to the first power line interface and used for processing the power carrier signals loaded in the input power line and converting the power carrier signals into Ethernet information;
the control module is connected with the metering module and the communication module and used for determining the electricity utilization information of the user according to preset logic and the metering information and sending the electricity utilization information to the terminal or the server.
2. The smart meter of claim 1, wherein the metering module comprises a power metering unit and a fee calculating unit, an input of the power metering unit is connected to the input power line via the first power line interface, an output of the power metering unit is connected to an input of the fee calculating unit, and an output of the fee calculating unit is connected to the control module, wherein:
the electric quantity metering unit is used for metering the electric quantity used by the load of the user terminal;
and the charge calculation unit is used for calculating the electricity consumption charge in a set charging period according to the electricity consumption.
3. The intelligent electric meter according to claim 2, wherein the electric meter body further comprises a temperature and humidity module, and the temperature and humidity module is connected with the control module and used for collecting temperature and humidity in the inner shell of the electric meter body and sending collected temperature information and humidity information to the control module.
4. The smart meter of claim 1, wherein the communication module comprises an information transceiver unit and a data processing unit, the information transceiver unit is connected to the input power line and a first end of the data processing unit, and a second end of the data processing unit is connected to an end user, wherein:
the information transceiving unit is used for sending the received power carrier signal to the data processing unit or loading the data of the data processing unit onto the power carrier line;
and the data processing unit is used for modulating or demodulating the received data to realize the conversion between the power carrier signal and the Ethernet information.
5. The smart meter of claim 4, wherein the data processing unit comprises a key subunit, and the key subunit generates an encryption algorithm using preset logic, or generates a decryption algorithm, wherein the decryption algorithm is an algorithm for decoding data encrypted according to the encryption algorithm.
6. The smart meter of claim 5, wherein the data processing unit comprises an encryption subunit, the encryption subunit encrypting data to be encrypted according to an encryption algorithm.
7. The smart meter of claim 5, wherein the data processing unit comprises a decryption subunit that decrypts the segment data of the power carrier signal according to a decryption algorithm.
8. The smart meter of claim 4, wherein the information transceiver unit comprises a coupling subunit coupled to the input power line, the coupling subunit receiving the power carrier signal from the input power line via a coupling.
9. The smart meter of claim 8, wherein the coupling sub-unit comprises a line trap, a coupling capacitor, a junction filter, and a high frequency cable, wherein:
a first end of the line wave trap is connected to the incoming power line through the first power line interface, and a second end of the line wave trap is connected to the metering module;
the first end of the coupling capacitor is connected to the incoming power line through the first power line interface, and the second end of the coupling capacitor is connected to the information transceiver unit through the high frequency cable after being connected in series with the combining filter.
10. The smart meter of claim 9, wherein the coupling capacitor and the combination filter comprise a band pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118565.9A CN110708398A (en) | 2019-11-15 | 2019-11-15 | Intelligent electric meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118565.9A CN110708398A (en) | 2019-11-15 | 2019-11-15 | Intelligent electric meter |
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| CN110708398A true CN110708398A (en) | 2020-01-17 |
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