CN102540134A - Intelligent metering and monitoring system - Google Patents
Intelligent metering and monitoring system Download PDFInfo
- Publication number
- CN102540134A CN102540134A CN2011104526258A CN201110452625A CN102540134A CN 102540134 A CN102540134 A CN 102540134A CN 2011104526258 A CN2011104526258 A CN 2011104526258A CN 201110452625 A CN201110452625 A CN 201110452625A CN 102540134 A CN102540134 A CN 102540134A
- Authority
- CN
- China
- Prior art keywords
- metering
- voltage
- main frame
- voltage signal
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention relates to an intelligent metering and monitoring system which can monitor a voltage signal of a secondary side of a voltage transformer and an electric current signal of a secondary side of a current transformer. When the intelligent metering and monitoring system is used for monitoring, an input unit (6) is used for starting respective corresponding computer programs, and then a single-chip microcomputer controls the acquisition of the voltage signal and the electric current signal needed by a processing unit (4); when the metering system goes wrong to result in the metering failure and the voltage signal collected by a voltage acquisition unit (4) is abnormal, a user side GSM (Global System for Mobile Communication) short message module gives alarm to a host machine monitor (8) in a short message manner and sends a user number at the failure place, a specific address, information of a nameplate of a metering box and related operating data to the host machine monitor (8) so that a worker is informed to timely overhaul the metering system, thereby the purpose of intelligent and real-time monitoring is realized. The intelligent metering and monitoring system mainly comprises an electric current acquisition unit (1), the voltage acquisition unit (2), an A/D (Analogue to Digital) converting unit (3), the processing unit (4), a display unit (5), an input unit (6), the user side GSM short message module (7) and the main host machine monitor (8). The intelligent metering and monitoring system has simple and compact structure, good reliability and real-time monitoring function.
Description
Technical field
The present invention relates generally to the electric power metering system field, refers in particular to a kind of intelligent metering auditing system.
Background technology
The high pressure measurement device is that carry on trade between electric company and the large-scale electricity consumption client electric energy metrical dress of clearing usefulness emits.The power marketing personnel rely on reliable electric energy measurement data to realize power supply, purchase safe, reliable, economical operation that electric balance with sale of electricity guarantees electric power enterprise, so power supply department not only need improve the electric weight that power supply quality more wants the accurate First Astronautic Research Institute for Measurement and Test to sell.The metering of the electric energy especially correct metering of high-voltage power metering system just seems particularly important at power consumption increasing today.
The high pressure measurement device is generally taken into account relevant utility appliance by high voltage potential transformer, current transformer with table and is formed; Its any part breaks down all and can not correctly measure even make whole metering system paralysis user institute power consumption, and this is definitely unallowed.In its component devices; Voltage transformer (VT) is relatively more fragile, also more fragile, and the influence that receives inside and outside superpotential or insulation fault especially easily damages the insurance of its high and low pressure side and voltage circuit occurs breaks; The table meter is gathered less than voltage signal; Can not write down power consumption, but this moment, current transformer moved normally, the user can not cut off the power supply.In a single day this type of fault takes place in High-voltage measuring box, can not in time come to light, and electric power enterprise will be suffered enormous economic loss.
The present invention be directed to the phenomenon that voltage transformer (VT) in the high-voltage metering cubicle and relevant device often damage, research and development a kind of when the WT-MSR structural failure, the intelligent metering auditing system that can monitor in real time.
Summary of the invention
For solving the problems of the technologies described above; The present invention is intended to a kind of intelligent metering auditing system of design research and development; The simultaneously current signal of monitoring current mutual inductor secondary side and the voltage signal of voltage transformer secondary side; Start each self-corresponding computer program through input block (6), then by Single-chip Controlling acquisition process unit (4) required voltage signal and current signal; Computer program is handled back output to the data of gathering, and is sent to main frame monitor (8) by the GSM SMS module with the data of mode after main frame monitor (8) carries out SMS alarm and will handle of SMS; Thereby reach intelligence, real-time supervisory purpose.
The technical scheme that the present invention adopts is:
1) through voltage acquisition unit (2) voltage signal of voltage transformer secondary side is sampled; In case breaking down, metering system causes the voltage circuit broken string; It is unusual that voltage acquisition unit is gathered voltage signal, and the time of unusual condition appears in processing unit (4) recording voltage signal; Carry out SMS alarm with the mode of SMS to main frame monitor (8) by user side GSM SMS module then, and the data after fault place Customs Assigned Number, specific address, batch meter nameplate information and the processing are sent to main frame monitor (8).Main frame monitor (8) is received and is started self acoustooptic alarm system behind the SMS alarm, and " so-and-so place, so-and-so user, so-and-so batch meter break down, and request is maintenance in time at screen display." operator on duty receive reset after the warning and in time the supervisory personnel of Advise By Wire electricity consumption overhaul; If unattended, main frame monitor warning system is reported to the police through after a while and is not resetted, and main frame monitor (8) notifies the supervisory personnel of electricity consumption so that in time overhaul with the mode of SMS.
2) through current acquisition unit (1) current signal of Current Transformer Secondary side is sampled; After voltage signal occurs unusually; Processing unit (4) whenever write down and stored current value and electric current change curve at a distance from 5 minutes; With the mode of SMS data recorded is sent to main frame monitor (8) by user side GSM SMS module then, is used to estimate the loss electric weight after metering was lost efficacy.
As further improvement of the present invention:
Intelligent metering auditing system of the present invention; The voltage signal of the secondary side of the current signal of monitoring current mutual inductor secondary side and voltage transformer (VT) in real time; Metering system breaks down and can in time be sent to host computer system to the host computer system warning and with record data when causing gauging loss; Thereby realized intelligence, the characteristics of monitoring have good using value in real time.That the present invention has is simple and compact for structure, with low cost, good reliability, operation are simple and easy; Advantages such as real-time supervisory function; Thereby guarantee the safe operation of metering system and maintenance in time, and measure the harm and the loss of losing efficacy and bringing after greatly reducing the WT-MSR fault.
Description of drawings
Fig. 1 is the circuit theory synoptic diagram of intelligent metering system of the present invention;
Fig. 2 is the circuit diagram of voltage acquisition unit in the embodiment of the invention;
Fig. 3 is the circuit diagram of current acquisition unit in the embodiment of the invention;
Fig. 4 is processing unit and a peripheral circuit synoptic diagram in the embodiment of the invention;
Fig. 5 is the circuit diagram of A/D converting unit in the embodiment of the invention.
Embodiment
As shown in Figure 1, the intelligent metering auditing system of the present invention comprises current acquisition unit 1; Voltage acquisition unit 2; A/D converting unit 3; Processing unit 4; Display unit 5; Input block 6; User side GSM SMS module 7; Main frame monitor 8.Current acquisition unit 1 is input to A/D converting unit 3 with voltage transformer (VT) 2 with analog current signal that collects and voltage signal; A/D converting unit 3 is an analog digital converting unit; A/D converting unit 3 with the input analog current, voltage signal convert digital current to, voltage signal is input to processing unit 4; Said processing unit 4 records and stored current value and electric current change curve and metering system break down the back unusual time of voltage signal; Carry out SMS alarm with the mode of SMS to main frame monitor 8 by user side GSM SMS module then; And with fault place Customs Assigned Number, specific address, batch meter nameplate information and the data after handling be sent to main frame monitor 8 so that notify the staff in time to overhaul; Thereby realize the function of monitoring in real time of said intelligent metering auditing system and computational data.
As shown in Figure 2, apparatus of the present invention voltage acquisition unit is made up of sampling resistor (51) and signal processing unit (52).Behind the voltage process current-limiting resistance R3, gather the signal of ac voltage input AD647 true value effective value conversion chip through sampling resistor R2 (51) back and import 13 pins.True value effective value conversion chip AD637 (52) becomes direct current signal output to outside input exchange signal effective value.
As shown in Figure 3, apparatus of the present invention current acquisition unit comprises current transformer (61) and signal processing unit (62).The current acquisition unit obtains current value through current transformer (61), gathers the signal of current value input AD647 true value effective value conversion chip and imports 13 pins.Become direct current signal output to outside input exchange signal effective value through true value effective value conversion chip AD637 (52).
As shown in Figure 4, apparatus of the present invention processing unit and peripheral circuit comprise 8 single-chip microcomputers of AT89C51 high-performance CMOS, multi-channel switch module (71), converting unit (72), display unit (5), input block (6) and user side GSM SMS module (7).AT89C51 Single-chip Controlling A/D conversion portion multi-way switch (71), multi-way switch (71) A termination P1.5 mouth, B termination P1.6 mouth.Single-chip Controlling output unit output data, input block (6) meets P3.0 RXD, P3.1 TXD, P3.2 INT0, P3.3 INT1.A/D converting unit (72) DRDY inserts single-chip microcomputer P2.7 mouth, and DOUT inserts single-chip microcomputer P2.6 mouth, and DIN inserts single-chip microcomputer P2.5 mouth, and SCLK inserts single-chip microcomputer P2.4 mouth.Display unit (5) inserts single-chip microcomputer P0.0 ~ P2.2 mouth, and single-chip microcomputer is handled back output and shown.User side GSM SMS module (7) inserts single-chip microcomputer P1.0 ~ P1.4 mouth, and single-chip microcomputer is handled the back data and is sent to main frame monitor (8) and staff's mobile phone by user side GSM SMS module (7).
As shown in Figure 5, apparatus of the present invention A/D conversion unit circuit is made up of multi-channel switch module (71), A/D converting unit (72) AD7511A/D converter, reference source (73) AD780AN voltage reference chip.Y2 is that 2.4576MHz crystal oscillator chip is that U4 work provides clock signal
to insert single-chip microcomputer P2.7 mouth;
ground connection; DOUT inserts single-chip microcomputer P2.6 mouth; DIN inserts single-chip microcomputer P2.5 mouth; SCLK inserts single-chip microcomputer P2.4 mouth, and
advanced R39 and connect+the 5V power supply.Multi-way switch (71) thus the X termination go into AIN+ and import into and carry out A/D conversion in the A/D converter (72).Its principle of work is following: single-chip microcomputer writes control word to the A/D chip; A/D converter (72) is started working; Acceptance is by the A/D changeover control signal of single-chip microcomputer P2.5 mouth transmission and the serial clock signal of single-chip microcomputer P2.4 mouth transmission; According to control signal AIN+ mouth data are carried out corresponding A/D conversion;
output at this moment becomes high level; After treating that A/D converts, A/D converter (72) sends low level signal through
to single-chip microcomputer P2.7 mouth, representes current A/D conversion effectively; The low level signal that single-chip microcomputer receives according to the P2.7 mouth sends to A/D converter (72) through the P2.5 mouth and reads control signal; A/D converter (72) receive by P2.5 send read control signal after, send the A/D translation data by DOUT to single-chip microcomputer P2.6 mouth, single-chip microcomputer writes control word to A/D quits work it; So far, an A/D conversion work is accomplished; When the A/D of single-chip microcomputer gained switching signal is excessive or too small; Can be by the defeated DIN mouth that controls signal to AD7715 of Single-chip Controlling P2.5 oral instructions, the signal amplification factor in the adjustment A/D conversion, and repeat above-mentioned job step; Thereby realized intelligent adjustment range, improved measuring accuracy.
Claims (3)
1. intelligent metering auditing system; It is characterized in that: the voltage signal of voltage transformer secondary side is gathered by this system through voltage acquisition unit (2); In case breaking down, metering system causes the voltage circuit broken string; It is unusual that voltage acquisition unit is gathered voltage signal, and the time of unusual condition appears in processing unit (4) recording voltage signal; Carry out SMS alarm with the mode of SMS to main frame monitor (8) by user side GSM SMS module then, and fault place Customs Assigned Number, specific address, batch meter nameplate information and related data are sent to main frame monitor (8); Thereby realize real-time monitoring to the voltage transformer secondary side voltage signal.
2. intelligent metering auditing system according to claim 1; It is characterized in that: the current signal of Current Transformer Secondary side is gathered by this system through current acquisition unit (1); After voltage signal occurs unusually; Processing unit (4) is every at a distance from 5 minutes records and stored current value and electric current change curve, with the mode of SMS data recorded is sent to main frame monitor (8) by user side GSM SMS module then, is used to estimate the loss electric weight after the metering inefficacy; Thereby realize real-time monitoring to Current Transformer Secondary side current signal.
3. main frame monitor according to claim 1; It is characterized in that: this main frame monitor (8) starts self acoustooptic alarm system after receiving SMS alarm; And screen display " so-and-so place, so-and-so user, so-and-so batch meter break down, and request is maintenance in time; " operator on duty receive reset after the warning and in time the supervisory personnel of Advise By Wire electricity consumption overhaul; If unattended, main frame monitor warning system is reported to the police through after a while and is not resetted, and main frame monitor (8) notifies the supervisory personnel of electricity consumption so that in time overhaul with the mode of SMS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104526258A CN102540134A (en) | 2011-12-30 | 2011-12-30 | Intelligent metering and monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104526258A CN102540134A (en) | 2011-12-30 | 2011-12-30 | Intelligent metering and monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102540134A true CN102540134A (en) | 2012-07-04 |
Family
ID=46347472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104526258A Pending CN102540134A (en) | 2011-12-30 | 2011-12-30 | Intelligent metering and monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102540134A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592507A (en) * | 2013-11-29 | 2014-02-19 | 国网安徽省电力公司淮南供电公司 | Voltage loop alarm for metering devices of transformer station |
| CN107146387A (en) * | 2017-05-16 | 2017-09-08 | 国网四川省电力公司资阳供电公司 | The power information acquisition system monitored for criminal investigation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476030Y (en) * | 2001-03-21 | 2002-02-06 | 陈劲游 | High voltage electric energy metering fault recording device |
| CN2562195Y (en) * | 2002-04-22 | 2003-07-23 | 重庆龙源科技产业发展有限公司 | Anomalous running measuring and recording instrument for intellectual network kilowatt meter |
| CN201708587U (en) * | 2010-05-21 | 2011-01-12 | 浙江邦业科技有限公司 | Intelligent digital automation distribution network system |
| CN201956930U (en) * | 2010-12-03 | 2011-08-31 | 山东电力集团公司菏泽供电公司 | Novel electric system capable of preventing electricity from being stolen based on GFSK wireless data communication technology |
-
2011
- 2011-12-30 CN CN2011104526258A patent/CN102540134A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476030Y (en) * | 2001-03-21 | 2002-02-06 | 陈劲游 | High voltage electric energy metering fault recording device |
| CN2562195Y (en) * | 2002-04-22 | 2003-07-23 | 重庆龙源科技产业发展有限公司 | Anomalous running measuring and recording instrument for intellectual network kilowatt meter |
| CN201708587U (en) * | 2010-05-21 | 2011-01-12 | 浙江邦业科技有限公司 | Intelligent digital automation distribution network system |
| CN201956930U (en) * | 2010-12-03 | 2011-08-31 | 山东电力集团公司菏泽供电公司 | Novel electric system capable of preventing electricity from being stolen based on GFSK wireless data communication technology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592507A (en) * | 2013-11-29 | 2014-02-19 | 国网安徽省电力公司淮南供电公司 | Voltage loop alarm for metering devices of transformer station |
| CN107146387A (en) * | 2017-05-16 | 2017-09-08 | 国网四川省电力公司资阳供电公司 | The power information acquisition system monitored for criminal investigation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202886463U (en) | Intelligent electric energy meter with functions of electric leakage remote monitoring and protection | |
| CN103091602B (en) | Power line carrier wave online fault detection device | |
| CN102169158B (en) | Steady state oscillograph for power system | |
| CN201352233Y (en) | Three-phase multifunctional electric energy meter with power carrier communication | |
| CN201352234Y (en) | Three-phase multifunctional electric energy meter | |
| CN102798786A (en) | Universal intelligent lightning protection monitoring module and method | |
| CN102879661A (en) | Method and system for detecting distribution network automatic terminal | |
| CN203606424U (en) | On-line monitoring device for grounding current of transformer core | |
| CN103617720B (en) | One possesses multi-channel control multifunctional meter counter device | |
| CN204143628U (en) | Wireless collector for collecting energy of electric energy meter | |
| CN105911344A (en) | Intelligent electric energy meter supporting electric leakage protection | |
| CN105717833A (en) | Intelligent mainboard of environment protective data collecting transmitter and work method of mainboard | |
| CN202471852U (en) | Lightning arrester on-line monitoring device | |
| CN202305704U (en) | Running state monitoring device of zinc oxide arrester | |
| CN104655926B (en) | A kind of built-in terminal and its monitoring method that can monitor power information and electricity charge data | |
| CN102540134A (en) | Intelligent metering and monitoring system | |
| CN201477192U (en) | Digital wave-recording device of power generator transformer set/circuit | |
| CN203658521U (en) | Mobile insulation supervision instrument of transformer station DC system | |
| CN211086545U (en) | N600 earth connection current monitoring devices | |
| CN103743964A (en) | Electric energy quality real-time monitoring device and method of monitoring electric energy data | |
| CN106707019A (en) | Service robot electric quantity monitoring device | |
| CN208350888U (en) | Low voltage equipment intelligent power monitor | |
| CN102568185A (en) | Building energy-saving monitoring data acquisition device | |
| CN207232382U (en) | Electric energy metering secondary overall operation situation on-Line Monitor Device | |
| CN205141831U (en) | Multi -functional joining in marriage becomes terminal based on ARM |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |