CN205826723U - The low pressure device against charge evasion of electrically-based line carrier wave - Google Patents
The low pressure device against charge evasion of electrically-based line carrier wave Download PDFInfo
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- CN205826723U CN205826723U CN201620766292.4U CN201620766292U CN205826723U CN 205826723 U CN205826723 U CN 205826723U CN 201620766292 U CN201620766292 U CN 201620766292U CN 205826723 U CN205826723 U CN 205826723U
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
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- 229910052744 lithium Inorganic materials 0.000 claims description 3
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- 238000010276 construction Methods 0.000 abstract description 2
- 238000011835 investigation Methods 0.000 description 19
- 238000005457 optimization Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 238000013500 data storage Methods 0.000 description 3
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Abstract
The utility model discloses the low pressure device against charge evasion of a kind of electrically-based line carrier wave, including power module, central control module, carrier module, memory module, current sample module, voltage sample module, clock module and I/O module.This utility model simple in construction, compared with prior art, this utility model integrated use power line carrier and the multiple mechanics of communication such as infrared also lack the awkward situation of specific aim instrument by reach to reduce current low pressure work of electricity anti-stealing, can be with the technical merit of the work of electricity anti-stealing of significant increase low-voltage platform area.
Description
Technical field
This utility model belongs to power system Prevention Stealing Electricity Technology field, is specifically related to the low pressure of a kind of electrically-based line carrier wave
Device against charge evasion.
Background technology
Along with intelligent electric meter is gradually popularized, China has the most progressively marched toward the epoch of intelligent power.Meanwhile, intelligent electric meter
Stealing problem is the most following.Although intelligent electric energy meter has inherently had been provided with certain anti-stealing electricity function, as logout,
Abnormality shows, fault alarm etc., but in face of so many prevention and control measure, low pressure stealing event still takes place frequently, and studies carefully it former
The prevention and control of opposing electricity-stealing that cause is current remain in the stage in units of platform district (with platform district line loss for guiding).The most how to break through
Feature that low-voltage platform area is multi-point and wide-ranging and the restriction of the factor such as personnel, time, change low pressure oppose electricity-stealing point-to-point, sound out the people in a given scope one by one in order to break a criminal case one by one
Original working forms, solve that efficiency present in current low pressure work of electricity anti-stealing is low, the inapparent problem of effect has just become to work as
It is engaged in anxious.To this end, we be required for low pressure steal feature combine working experience, push away a set of be used in low pressure device against charge evasion with
Improve the investigation efficiency to low pressure electricity filching behavior.By this utility model, investigation scope when can low pressure be opposed electricity-stealing is by " one
A secondary table " it is promoted to " feeder pillar ", simultaneously by the positioning precision around electricity filching behaviors such as table electricity consumption, off-balancesheet wiring from " platform
District's level " it is contracted to " cable-grade ", the investigation efficiency of low pressure electricity filching behavior is greatly improved, damages potentiation for low-voltage platform area fall and provide strong
Technical support.
Utility model content
The purpose of this utility model is to provide the low pressure device against charge evasion of a kind of electrically-based line carrier wave, helps to oppose electricity-stealing
Personnel or unit-area management personnel are improving scanning scope disposable to low-voltage metering mechanism, are reached by the form in " with face for point "
Promote work of electricity anti-stealing efficiency, provide decision assistant foundation for platform wire management.
This utility model solves technique scheme by the following technical programs,
The low pressure device against charge evasion of electrically-based line carrier wave, including power module, central control module, carrier module, number
According to memory module, current sample module, voltage sample module, clock module and I/O module, it is characterised in that
Described power module provides reliable electric energy guarantee for device when working；
Described central control module, including adder and multiplier, obtains current sample module and/or voltage sample module
To analog quantity be converted into digital quantity and compare and calculate；Receive the control instruction of I/O module input, to electric current, voltage
Sampling module sends acquisition instructions；
Described carrier module realizes the concentration communication between this device and scanning zone intercarrier electric energy meter；
Described I/O module, inputs data to low pressure device against charge evasion, and exports the data of low pressure device against charge evasion；
Described current sample module includes at least 3 Hall current sensors, measures the electricity flowed out in threephase cable respectively
Stream, obtains current data, and exports to central control module；
Described voltage sample module directly at threephase cable Metal contacts, gathers voltage data by alligator clamp, and
Output is to central control module；
Described clock module provides the reference time of standard for this low pressure device against charge evasion；
Described data memory module to operating system or other be currently running in the ephemeral data of program store, right
Program and test data store.
As optimization, described power module is AMS1117 voltage regulator chip and can the EEMBLP55100100 of discharge and recharge
Lithium battery；
As optimization, described power module passes through voltage sample module power taking；
As optimization, described central control module is MSP430F169 chip；
As optimization, described carrier module is PLCi38-III low-voltage powerline carrier communication chip；
As optimization, also infrared module, described infrared module is used for copy reading electric energy meter address or other parameter informations；
In the case of being non-carrier table in scanning zone, can be with harvester communication, in concentrating reading power meters, corresponding data is (as in real time
Load, voltage, electric current, power loss event, event etc. of uncapping).
As optimization, described infrared module is hx-1738A infrared remote receiver；
As optimization, described I/O module includes LED display and/or keyboard；
As optimization, the display pixel of described LED display is 500*500 dot matrix, and window size is not less than 100mm*
100mm, menu in Chinese shows；Described keyboard at least include "+", "-", " t ", " i ", " confirmation " and " cancellation " six press keys；
As optimization, described I/O module is the touch display screen of band touch input；
As optimization, described I/O module also includes that alarm lamp, described alarm lamp exceed permission in test result
Value and/or send alarm when having doubtful stealing situation；
As optimization, described I/O module also includes USB or RS232 interface, imports table address table data；
As optimization, described clock module is RTC clock module, and described RTC clock module is that the I2C of MAXIM company is total
Line real-time clock DS3231SN, is internally integrated temperature compensating crystal oscillator and crystal, and subsidiary button cell can be when disconnecting main power source
Chip power supply；
As optimization, described carrier module utilizes low-voltage power line to set up data even for communication media and carrier electric energy meter
Connect, and with semiduplex communication mode to corresponding data in copy reading electric energy meter, application layer compatibility DL/T645-2007 stipulations；
As optimization, described data memory module includes that running memory and memory space, described running memory are 2048B
Memory ram, 60kB flash memory, as operating system or other be currently running in program ephemeral data storage medium；Described deposit
Storage space is K9F2G08U0B chip, has a 256M Byte Nand Flash memory space, for program and test data
Storage medium.
This utility model also provides for the loss power method for rapidly estimating of the low pressure device against charge evasion of electrically-based line carrier wave,
Its step is,
(1) current sample 5s is the cycle, continuously acquires xx hour:xx min:xx sec to yy hour:yy min:
The three-phase total current numerical value (I of investigation area is treated in yy seca、IbAnd Ic)；
(2), after carrier module is connected by any zero line being connected with region to be checked, issued by zero line with 5s for the cycle
The counted electric current I of the electric energy meter in investigation area is treated in copy readingnInstruction, by table meters all in this investigation area of carrier wave copy reading: (I)
Current value (I in xx hour:xx min:xx sec to the yy hour:yy min:yy sec time period1, I2, I3, I4, I5,
...In)；(II) power down record；(III) uncap record；
(3) collect with certain moment in xx hour:xx min:xx sec to the yy hour:yy min:yy sec time period
One group of data (Ia、IbAnd Ic)、(I1, I2, I3, I4, I5... InAs a example by): give computing module to calculate fundamental current by CPU
Value Iα=Ia+Ib+IcAnd reference current valueReal-time current loss △ I=Iα-Iβ；
(4) if △ is I >=1A or △ I ＜ 1A and △ I/Iα>=50%, then this device makes alarm, need to be to scanning zone
Interior table meter is got rid of further, if having record of uncapping accordingly to return, emphasis inspection answered by corresponding table meter；
(5) if △ I ＜ 1A and △ I/Iα＜ 50%, and without any uncapping, power loss event return, can this region of primitive decision
Interior table meter is normal；
(6) loss power △ P calculates and can be estimated as: △ P=△ I × 220V.
This utility model also provides for the loss power accurate measure method of the low pressure device against charge evasion of electrically-based line carrier wave,
Its step is,
(1) electric current, voltage sample are with 2s as cycle, continuously acquire xx hour:xx min:xx sec to yy hour:
The three-phase total current numerical value (I of investigation area is treated in yy min:yy seca、IbAnd Ic) and three-phase voltage value (Ua、UbAnd Uc)；
(1), after carrier module is connected by any zero line being connected with region to be checked, issued by zero line with 5s for the cycle
The counted electric current I of the electric energy meter in investigation area is treated in copy readingnInstruction, by table meters all in this investigation area of carrier wave copy reading: (I)
Realtime power (P in xx hour:xx min:xx sec to the yy hour:yy min:yy sec time period1, P2, P3, P4, P5,
...Pn)；(II) power down record；(III) uncap record.
(3) collect with certain moment in xx hour:xx min:xx sec to the yy hour:yy min:yy sec time period
One group of data (Ia、IbAnd Ic)、(Ua、UbAnd Uc) and
(P1, P2, P3, P4, P5... PnAs a example by): give computing module to calculate prime power P by CPUα=Ia×Ua+Ib
×Ub+Ic×UcAnd reference powerRealtime power loss △ P=Pα-Pβ。
(4) if △ is P >=0.2kW or △ P ＜ 0.2kW and △ P/Pα>=50%, then this device makes alarm, need to be to sweeping
In looking into region, table meter is investigated further.If have record of uncapping accordingly to return, corresponding table meter should carry out emphasis inspection.
(5) if △ P ＜ 0.2kW and △ P/Pα＜ 50%, and without any uncapping, power loss event return, can primitive decision this
In region, table meter is normal.
(6) the accurate loss power △ P of this panel region is: △ P=Pα-Pβ。
This utility model simple in construction, compared with prior art, this utility model integrated use power line carrier and infrared
The awkward situation of specific aim instrument is lacked etc. multiple mechanics of communication and by reach to reduce current low pressure work of electricity anti-stealing, can be very big
Promote the technical merit of the work of electricity anti-stealing of low-voltage platform area.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model embodiment scheme of installation.
Detailed description of the invention
Content of the present utility model it is further elaborated on below in conjunction with the accompanying drawings with embodiment.
Embodiment 1
The low pressure device against charge evasion of electrically-based line carrier wave mainly by power module, central control module, carrier module, red
Outer mold piece, I/O module, electric current, voltage sample module, clock module and data memory module composition；
Power module provides reliable electric energy guarantee for device when working；Described power module is AMS1117 manostat core
Sheet and can the EEMBLP55100100 lithium battery of discharge and recharge；Special, described power module passes through voltage sample module power taking；
During work can by voltage sample module be this utility model device power and be battery charge, use voltage sample module supply
During electricity, flowing out in terms of direction from electric current, current sample need to be after voltage sample, to reduce measurement error；
Described central control module, including adder and multiplier, obtains current sample module and/or voltage sample module
To analog quantity be converted into digital quantity and compare and calculate；Receive the control instruction of I/O module input, to electric current, voltage
Sampling module sends acquisition instructions；Described central control module is MSP430F169 chip；
Described carrier module realizes the concentration communication between this device and scanning zone intercarrier electric energy meter；Utilize low tension
The line of force is that communication media sets up reliable data cube computation with terminal unit (i.e. carrier electric energy meter), and with semiduplex communication mode
To corresponding data in copy reading electric energy meter (including Real-time Load, voltage, electric current, power loss event, event of uncapping), application layer is compatible
DL/T645 2007 stipulations；Described carrier module is PLCi38-III low-voltage powerline carrier communication chip；Need during use to connect
On zero line loop；
Described infrared module is used for copy reading electric energy meter address or other parameter informations；It it is non-carrier table in scanning zone
In the case of, can be with harvester communication, in concentrating reading power meters, corresponding data (includes Real-time Load, voltage, electric current, power down
Event, event of uncapping)；Described infrared module is hx-1738A infrared remote receiver；
Described I/O module inputs data to low pressure device against charge evasion, and exports the data of low pressure device against charge evasion；Described I/
O module includes LED display and/or keyboard；The display pixel of described LED display is 500*500 dot matrix, and window size is the least
In 100mm*100mm, menu in Chinese shows；Described keyboard at least includes 6 buttons: "+", "-", " t ", " i ", " confirmation " and
" cancelling ", button answers flexibility and reliability, without stuck or loose contact phenomenon, and should fasten non-loosening；
As optimization, described I/O module is the touch display screen of band touch input；The convenience of the operation to increase, carries
Rise man-machine interaction level；
Described I/O module also includes that alarm lamp, described alarm lamp exceed permissible value in test result and/or have
Alarm is sent during doubtful stealing situation；
Described I/O module also includes USB or RS232 interface, imports table address table data；
Described current sample module includes at least 3 Hall current sensors, measures the electricity flowed out in threephase cable respectively
Stream, obtains current data, and exports to central control module；
Described voltage sample module directly at threephase cable Metal contacts, gathers voltage data by alligator clamp, and
Output is to central control module；
Described clock module is RTC clock module, and described RTC clock module is the I2C bus real-time clock of MAXIM company
DS3231SN, is internally integrated temperature compensating crystal oscillator and crystal, and subsidiary button cell can be chip power supply when disconnecting main power source, with
Ensureing accurate timing, clock module can be the reference time that this device provides standard, is to calculate real-time current loss △ I with in real time
The basis of power attenuation △ P；
Described data memory module to operating system or other be currently running in the ephemeral data of program store, right
Program and test data store；Described data memory module includes that running memory and memory space, described running memory are
2048B memory ram, 60kB flash memory, as operating system or other be currently running in program ephemeral data storage medium；
Described memory space is K9F2G08U0B chip, has 256M Byte Nand Flash memory space, for program and test
The storage medium of data.
Ultimate principle of the present utility model is:
(1) the electric current I that under normal circumstances, synchronization cable three-phase line a, b, c is flowed outa、IbAnd IcShould be with this electricity
The electric current I counted in all electric energy meters that cable is carried1, I2, I3, I4, I5... InSum is equal, i.e. Ia+Ib+Ic=I1+I2+I3
+I4+I5+...+In；
(2) if there is stealing or table meter measure abnormal in the case of, then there will be Ia+Ib+Ic>I1+I2+I3+I4+I5
+…+InPhenomenon；
A () is if any the event log data such as record, power down record of uncapping of a few pieces of electric energy meters of feedback, further by target
It is contracted to the most a few pieces of table meters and carries out emphasis investigation；
If b () does not has feedback event record data, then emphasis considers to investigate off-balancesheet wiring with presence or absence of under this cable, uses without table
The situation of electricity.
This utility model at least three kinds of communication channels are with the needs of the information such as satisfied acquisition table address: 1, infrared: to pass through
With harvester, the infrared interface communication data message needed for obtaining of on-the-spot table meter；2, USB or RS232 interface: by calculating
The data such as the table address list that machine importing completes；3, carrier communication: the data transmission between complete cost apparatus and intelligent meter.
Before using, should obtain all electric energy meter addresses treating in investigation area, acquisition mode has: (1) is connect by infrared
Electric energy meter in mouthful investigation area is treated in scanning one by one；(2) electric energy meter in investigation area is treated by the importing of USB or RS232 interface
Table address stores to ROM.
Embodiment 2
During use, the simple measuring method of loss power of the low pressure device against charge evasion of electrically-based line carrier wave, its step is,
(1) current sample 5s is the cycle, continuously acquires xx hour:xx min:xx sec to yy hour:yy min:
The three-phase total current numerical value I of investigation area is treated in yy seca、IbAnd Ic；
(2), after carrier module is connected by any zero line being connected with region to be checked, issued by zero line with 5s for the cycle
The counted electric current I of the electric energy meter in investigation area is treated in copy readingnInstruction, by table meters (I) all in this investigation area of carrier wave copy reading
Current value (I in xx hour:xx min:xx sec to the yy hour:yy min:yy sec time period1, I2, I3, I4, I5,
...In) (II) power down record (III) uncaps record；
(3) collect with certain moment in xx hour:xx min:xx sec to the yy hour:yy min:yy sec time period
One group of data (Ia、IbAnd Ic)&(I1, I2, I3, I4, I5... InAs a example by): give computing module to calculate fundamental current by CPU
Value Iα=Ia+Ib+IcAnd reference current valueReal-time current loss △ I=Iα-Iβ；
(4) if △ is I >=1A or △ I ＜ 1A and △ I/Iα>=50%, then this device makes alarm, need to be to scanning zone
Interior table meter is got rid of further, if having record of uncapping accordingly to return, emphasis inspection answered by corresponding table meter；
(5) if △ I ＜ 1A and △ I/Iα＜ 50%, and without any uncapping, power loss event return, can this region of primitive decision
Interior table meter is normal；
(6) loss power △ P calculates and can be estimated as: △ P=△ I × 220V.
Embodiment 3
During use, the loss power accurate measure method of the low pressure device against charge evasion of electrically-based line carrier wave, its step is,
(1) electric current, voltage sample are with 2s as cycle, continuously acquire xx hour:xx min:xx sec to yy hour:
The three-phase total current numerical value I of investigation area is treated in yy min:yy seca、IbAnd IcWith three-phase voltage value Ua、UbAnd Uc；
(1), after carrier module is connected by any zero line being connected with region to be checked, issued by zero line with 5s for the cycle
The counted electric current I of the electric energy meter in investigation area is treated in copy readingnInstruction, by table meters (I) all in this investigation area of carrier wave copy reading
Realtime power P in xx hour:xx min:xx sec to the yy hour:yy min:yy sec time period1, P2, P3, P4, P5,
...Pn；(II) power down record；(III) uncap record.
(3) collect with certain moment in xx hour:xx min:xx sec to the yy hour:yy min:yy sec time period
One group of data (Ia、IbAnd Ic)、(Ua、UbAnd Uc) and (P1, P2, P3, P4, P5... PnAs a example by): give computing module by CPU
Calculate prime power Pα=Ia×Ua+Ib×Ub+Ic×UcAnd reference powerRealtime power loss △
P=Pα-Pβ。
(4) if △ is P >=0.2kW or △ P ＜ 0.2kW and △ P/Pα>=50%, then this device makes alarm, need to be to sweeping
In looking into region, table meter is investigated further.If have record of uncapping accordingly to return, corresponding table meter should carry out emphasis inspection.
(5) if △ P ＜ 0.2kW and △ P/Pα＜ 50%, and without any uncapping, power loss event return, can primitive decision this
In region, table meter is normal.
(6) the accurate loss power △ P of this panel region is: △ P=Pα-Pβ。
The low pressure device against charge evasion integrated use power line carrier of this utility model electrically-based line carrier wave and infrared etc. many
Kind of mechanics of communication also lacks the awkward situation of specific aim instrument by reach to reduce current low pressure work of electricity anti-stealing, can be with significant increase
The technical merit of the work of electricity anti-stealing of low-voltage platform area.
Claims (10)
- The low pressure device against charge evasion of the most electrically-based line carrier wave, including power module, central control module, carrier module, infrared Module, data memory module, current sample module, voltage sample module, clock module and I/O module, it is characterised in thatDescribed power module provides reliable electric energy guarantee for device when working；Described central control module, including adder and multiplier, obtains current sample module and/or voltage sample module Analog quantity is converted into digital quantity and compares and calculate；Receive the control instruction of I/O module input, to electric current, voltage sample Module sends acquisition instructions；Described carrier module realizes the concentration communication between this device and scanning zone intercarrier electric energy meter；Described I/O module, inputs control instruction to low pressure device against charge evasion, and exports the data of low pressure device against charge evasion；Described current sample module includes at least 3 Hall current sensors, measures the electric current flowed out in threephase cable respectively, obtains Obtaining current data, and export to central control module；Described voltage sample module directly at threephase cable Metal contacts by alligator clamp, is gathered voltage data, and exports To central control module；Described clock module provides the reference time of standard for this low pressure device against charge evasion；Described data memory module to operating system or other be currently running in the ephemeral data of program store, to program And test data store.
- 2. low pressure device against charge evasion as claimed in claim 1, it is characterised in that described power module is AMS1117 manostat core Sheet and can the EEMBLP55100100 lithium battery of discharge and recharge；Described power module passes through voltage sample module power taking.
- 3. low pressure device against charge evasion as claimed in claim 1, it is characterised in that described central control module is MSP430F169 core Sheet.
- 4. low pressure device against charge evasion as claimed in claim 1, it is characterised in that described carrier module is PLC-i38-III low pressure Power line carrier communication chip.
- 5. low pressure device against charge evasion as claimed in claim 1, it is characterised in that also having infrared module, described infrared module is used for Copy reading electric energy meter address or other parameter informations；Described infrared module is hx-1738A infrared remote receiver.
- 6. as claimed in claim 1 low pressure device against charge evasion, it is characterised in that described I/O module include LED display and/or Keyboard.
- 7. low pressure device against charge evasion as claimed in claim 6, it is characterised in that the display pixel of described LED display is 500* 500 dot matrix, window size is not less than 100mm*100mm, and menu in Chinese shows；Described keyboard at least include "+", "-", " t ", " i ", " confirmation " and " cancellation " six press keys.
- 8. low pressure device against charge evasion as claimed in claim 1, it is characterised in that described I/O module is the touch of band touch input Display screen.
- 9. low pressure device against charge evasion as claimed in claim 1, it is characterised in that described I/O module also includes alarm lamp, institute State alarm lamp and send alarm when test result exceedes permissible value and/or has doubtful stealing situation.
- 10. low pressure device against charge evasion as claimed in claim 1, it is characterised in that described clock module is RTC clock module, institute State the I2C bus real-time clock DS3231SN that RTC clock module is MAXIM company, be internally integrated temperature compensating crystal oscillator and crystal, subsidiary Button cell can disconnect main power source time be chip power supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766292.4U CN205826723U (en) | 2016-07-20 | 2016-07-20 | The low pressure device against charge evasion of electrically-based line carrier wave |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620766292.4U CN205826723U (en) | 2016-07-20 | 2016-07-20 | The low pressure device against charge evasion of electrically-based line carrier wave |
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|---|---|
| CN205826723U true CN205826723U (en) | 2016-12-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018904A (en) * | 2016-07-20 | 2016-10-12 | 国网江西省电力公司南昌供电分公司 | Low-voltage electricity-stealing preventing device based on power line carrier wave, rapid power loss measuring and calculating method and accurate power loss measuring and calculating method |
| CN110308314A (en) * | 2019-06-12 | 2019-10-08 | 威胜电气有限公司 | Low-voltage anti-theft electric switch and its electricity anti-theft method |
-
2016
- 2016-07-20 CN CN201620766292.4U patent/CN205826723U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018904A (en) * | 2016-07-20 | 2016-10-12 | 国网江西省电力公司南昌供电分公司 | Low-voltage electricity-stealing preventing device based on power line carrier wave, rapid power loss measuring and calculating method and accurate power loss measuring and calculating method |
| CN106018904B (en) * | 2016-07-20 | 2024-03-19 | 国网江西省电力公司南昌供电分公司 | Low-voltage anti-electricity-stealing device and method for rapidly and accurately measuring and calculating loss power thereof |
| CN110308314A (en) * | 2019-06-12 | 2019-10-08 | 威胜电气有限公司 | Low-voltage anti-theft electric switch and its electricity anti-theft method |
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