CN107490721A - A kind of intelligent electric meter electric power meter based on NB IoT - Google Patents
A kind of intelligent electric meter electric power meter based on NB IoT Download PDFInfo
- Publication number
- CN107490721A CN107490721A CN201710831134.1A CN201710831134A CN107490721A CN 107490721 A CN107490721 A CN 107490721A CN 201710831134 A CN201710831134 A CN 201710831134A CN 107490721 A CN107490721 A CN 107490721A
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- electrically connected
- voltage
- current transformer
- iot
- sample circuit
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Classifications
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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
Abstract
The invention discloses a kind of intelligent electric meter electric power meter based on NB IoT, it is related to ammeter metering device field；It includes harvester, error detecting apparatus, metering device and the processing component being sequentially connected with；Harvester includes current transformer, voltage transformer and sample circuit；Current transformer and voltage transformer are electrically connected with sample circuit respectively；Error detecting apparatus includes voltage comparator and decompression device, and metering device includes computation chip, and the sample circuit, voltage comparator, decompression device and computation chip are sequentially electrically connected with；Sample circuit, voltage comparator and computation chip are sequentially electrically connected with；Processing component includes processor and memory；The present invention is by setting voltage comparator and decompression device to reduce virtual voltage because the error that use environment is brought；It is adjusted after sampling again by transformation ratio current transformer, reduces the error in dipping of seasonal electricity consumption user.
Description
Technical field
The present invention relates to ammeter metering device field, especially a kind of intelligent electric meter electric energy metrical dress based on NB-IoT
Put.
Background technology
Electric power meter include all kinds electric energy meter, metering with voltage transformer, current transformer for metering and its
Secondary circuit and electric energy metering cabinet (case) etc..Power system hair, confession, electricity consumption links in, installed substantial amounts of electric energy
Metering device, for measuring generated energy, station-service electricity, delivery, electricity sales amount etc., to formulate the production schedule, doing business accounting well
Foundation is provided with electricity is collected.
It is mutual that all things on earth is turned into based on cellular arrowband Internet of Things (Narrow Band Internet of Things, NB-IoT)
One important branch of networking network；NB-IoT possesses following characteristics：First, extensively cover；Second, possesses the energy of support magnanimity connection
Power；Third, more low-power consumption.
Electric energy meter is the instrument for measuring electric energy, and it is the Main Basiss that electricity clearing are carried out for electricity consumption both sides, therefore
Ensure that the accuracy of its metering is increasingly taken seriously, with the development of modern power systems, charging high-voltage electric-energy meter
Because the influence of environment can produce certain decompression situation, cause metering inaccurate；On the other hand, for the use of seasonal electricity consumption
Family, power load do not meet existing metering device, cause metering inaccurate.
The content of the invention
It is an object of the invention to：The invention provides a kind of intelligent electric meter electric power meter based on NB-IoT, leads to
Setting voltage comparator and decompression device are crossed because voltage error caused by environment is included in metering, solves existing ignore because of electricity consumption
The problem of metering is inaccurate caused by user type difference, error caused by having reached exclusion environmental factor are accurate so as to improve metering
The effect of true property.
The technical solution adopted by the present invention is as follows：
A kind of intelligent electric meter electric power meter based on NB-IoT includes harvester, the error-detecting dress being sequentially connected with
Put, metering device and processing component；The harvester includes current transformer, voltage transformer and sample circuit；The electricity
Current transformer and voltage transformer are electrically connected with sample circuit respectively；The error detecting apparatus includes voltage comparator and mistake
Pressure device, metering device include computation chip, and the sample circuit, voltage comparator, decompression device and computation chip are sequentially electric
Property connection；The sample circuit, voltage comparator and computation chip are sequentially electrically connected with；The processing component include processor and
Memory, the computation chip, processor and memory are sequentially electrically connected with.
Preferably, error detecting apparatus also includes load detector and transformation ratio current transformer；The load detector with
Transformation ratio current transformer is electrically connected with, and the transformation ratio current transformer is electrically connected with computation chip.
Preferably, processing component also includes relay, and the relay is electrically connected with processor.
Preferably, processing component also includes NB-IoT communication units, and the NB-IoT communication units electrically connect with processor
Connect.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
(1) present invention reduces the voltage error caused by use environment, error-detecting dress by step-up error detection means
Put including voltage comparator and decompression device, be included in the difference voltage of virtual voltage and rated voltage by comparison voltage
Amount, reduce voltage error, solve the problems, such as it is existing ignore caused by error caused by environment measure it is inaccurate, reach
Error is so as to improving the effect of metering accuracy caused by excluding environmental factor；
(2) present invention is changed, according to electricity consumption by setting load detector and transformation ratio current transformer by detection load
Enter back into metering after the no-load voltage ratio that is more suitable for of user type selection, it is contemplated that the special circumstances of seasonal electricity consumption user, solve because
The problem of metering is inaccurate caused by electricity consumption user type difference, further improve the accuracy of metering；
(3) present invention is also by setting processor and NB-IoT communication units, realize continuous data teletransmission it is same
The stability and realize long-distance transmissions that Shi Tigao is transmitted；
(4) also by setting relay, processor can be cut-off the present invention according to continuous data trigger relay, enter one
Step ensures the security of metering, while can also realize remote monitoring by NB-IoT communication units.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the system block diagram of the present invention.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
The present invention is elaborated with reference to Fig. 1.
A kind of intelligent electric meter electric power meter based on NB-IoT includes harvester, the error-detecting dress being sequentially connected with
Put, metering device and processing component；Harvester includes current transformer, voltage transformer and sample circuit；Current transformer
It is electrically connected with respectively with sample circuit with voltage transformer；Error detecting apparatus includes voltage comparator and decompression device, metering
Device includes computation chip, and sample circuit, voltage comparator, decompression device and computation chip are sequentially electrically connected with；Sample circuit,
Voltage comparator and computation chip are sequentially electrically connected with；Processing component includes processor and memory, the computation chip, processing
Device and memory are sequentially electrically connected with.
Error detecting apparatus also includes load detector and transformation ratio current transformer；Load detector and no-load voltage ratio Current Mutual Inductance
Device is electrically connected with, and transformation ratio current transformer is electrically connected with computation chip.
Processing component also includes relay, and relay is electrically connected with processor.
Processing component also includes NB-IoT communication units, and NB-IoT communication units are electrically connected with processor.
Embodiment 1
Use principle：Voltage and current is reduced to safety by high voltage distribution installation by voltage transformer, current transformer
Sample circuit is connected to after measurement range and carries out voltage sample and current sample, after voltage sample result delivers to voltage comparator,
The voltage of actual circuit and rated voltage are compared, if virtual voltage is higher than rated voltage, decompression device can then produce negative
Additive error voltage, computation chip can then calculate negative additive error voltage and rated voltage, will calculate voltage results and deliver to processing
Device, processor is by data storage to memory；If virtual voltage is less than rated voltage, decompression device can then produce additive error electricity
Pressure, computation chip can then calculate additive error voltage and rated voltage, will calculate voltage results and deliver to processor, and processor is by number
According to storing to memory；If virtual voltage is equal to rated voltage, computation chip then calculates voltage and delivers to processor, and processor will be deposited
Memory data can be communicated by NB-IoT communication units with terminal, and remote monitoring metering can be achieved；Processor passes through metering
The data-triggered relay of chip transmission is cut-off, and simultaneous processor can also be by NB-IoT communication units by continuous data
Other-end is sent to, realizes long-distance transmissions and stable transmission；The present invention is reduced real by voltage comparator and decompression device
Border voltage is because the error that use environment is brought；After the sampling according to electricity consumption user type again by transformation ratio current transformer
It is adjusted, reduces the error in dipping of the such as seasonal electricity consumption user of special electricity consumption user；NB-IoT communication units are set simultaneously
And relay, realize remote monitoring while realizing teletransmission continuous data.
Claims (4)
- A kind of 1. intelligent electric meter electric power meter based on NB-IoT, it is characterised in that：Including be sequentially connected with harvester, Error detecting apparatus, metering device and processing component；The harvester includes current transformer, voltage transformer and sampling electricity Road；The current transformer and voltage transformer are electrically connected with sample circuit respectively；The error detecting apparatus includes voltage Comparator and decompression device, metering device include computation chip, the sample circuit, voltage comparator, decompression device and metering Chip is sequentially electrically connected with；The sample circuit, voltage comparator and computation chip are sequentially electrically connected with；The processing component bag Processor and memory are included, the computation chip, processor and memory are sequentially electrically connected with.
- A kind of 2. intelligent electric meter electric power meter based on NB-IoT according to claim 1, it is characterised in that：Error Detection means also includes load detector and transformation ratio current transformer；The load detector electrically connects with transformation ratio current transformer Connect, the transformation ratio current transformer is electrically connected with computation chip.
- A kind of 3. intelligent electric meter electric power meter based on NB-IoT according to claim 1, it is characterised in that：Processing Component also includes relay, and the relay is electrically connected with processor.
- A kind of 4. intelligent electric meter electric power meter based on NB-IoT according to claim 1, it is characterised in that：Processing Component also includes NB-IoT communication units, and the NB-IoT communication units are electrically connected with processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710831134.1A CN107490721A (en) | 2017-09-15 | 2017-09-15 | A kind of intelligent electric meter electric power meter based on NB IoT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710831134.1A CN107490721A (en) | 2017-09-15 | 2017-09-15 | A kind of intelligent electric meter electric power meter based on NB IoT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107490721A true CN107490721A (en) | 2017-12-19 |
Family
ID=60652614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710831134.1A Withdrawn CN107490721A (en) | 2017-09-15 | 2017-09-15 | A kind of intelligent electric meter electric power meter based on NB IoT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107490721A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521268A (en) * | 2018-12-28 | 2019-03-26 | 珠海格力电器股份有限公司 | Electric energy metering device, ammeter equipment and configuration method |
| CN109813960A (en) * | 2019-03-29 | 2019-05-28 | 国网河南省电力公司漯河供电公司 | One kind being based on the anti-electricity-theft intelligent kilowatt-hour meter of Internet of Things and monitoring system |
-
2017
- 2017-09-15 CN CN201710831134.1A patent/CN107490721A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521268A (en) * | 2018-12-28 | 2019-03-26 | 珠海格力电器股份有限公司 | Electric energy metering device, ammeter equipment and configuration method |
| CN109813960A (en) * | 2019-03-29 | 2019-05-28 | 国网河南省电力公司漯河供电公司 | One kind being based on the anti-electricity-theft intelligent kilowatt-hour meter of Internet of Things and monitoring system |
| CN109813960B (en) * | 2019-03-29 | 2024-02-20 | 国网河南省电力公司漯河供电公司 | Intelligent kilowatt-hour meter and monitoring system based on thing networking electricity larceny prevention |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171219 |
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| WW01 | Invention patent application withdrawn after publication |