CN200996970Y - Charge-evasion preventer for comparing high-voltage end and low-voltage end quantity - Google Patents
Charge-evasion preventer for comparing high-voltage end and low-voltage end quantity Download PDFInfo
- Publication number
- CN200996970Y CN200996970Y CN 200720017970 CN200720017970U CN200996970Y CN 200996970 Y CN200996970 Y CN 200996970Y CN 200720017970 CN200720017970 CN 200720017970 CN 200720017970 U CN200720017970 U CN 200720017970U CN 200996970 Y CN200996970 Y CN 200996970Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- high pressure
- ghg
- pressure measurement
- housing
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
An anti-electric larceny apparatus used to calculate the electric quantity at the high-voltage side and the low-voltage side. The apparatus is provided with the shell (1) of a high-voltage metering device GHG and a cabinet (11) of the coulometric analysis instrument DFX, which is characterized in that the high-voltage metering device GHG and the coulometric analysis instrument DFX are corresponding to each other; the shell (1) is installed with a circuit board (4) which is equipped with the intelligent electric circuit for high voltage calculation. The shell (1) is provided with a braid hole (2) and the current transformer which is correspondent to the threading hole (2).The electrically connected cabinet (11) on the current transformer and the circuit board (4) are equipped with a display unit (12), a button (13) and a socket. The cabinet (11) is respectively equipped with the circuit board and the aerial, while the circuit board is arranged with the intelligent electric circuit for the coulometric analysis.
Description
Technical field
The utility model relates to the power supply equipment technical field, specifically a kind ofly can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight.
Background technology
At present, power supply department all is to make an issue of on the electric energy meter between power transformer low pressure end and the customer charge generally for the electric energy that avoids theft, and promptly controls the difficult mode of being opened by the user of connection box of electric energy meter lid.But, the means of illegal stealing are diversified, such as: take short circuit or open-circuit current mutual inductor, and will load and directly carry out stealing with forms such as the power transformer low pressure end are connected, before power supply department is verified power consumption again with its reinstatement, to get by under false pretences.To this, power supply department knows that obviously this power consumption is untrue, but evidence that also cannot take out science is admitted what one has said or done by the stealing people.The economic loss that the poly-talented electricity filching behavior of this what is called brings for power supply department is not only quite hugely, and is endless.How can scientific and effective contain various electricity filching means, fundamentally to retrieve the economic loss of power supply department, be that present power supply industry has a great problem to be solved.
Summary of the invention
The purpose of this utility model provides a kind ofly can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight, it takes to install the high pressure measurement device form additional at the high-pressure side of power transformer, and compare by metering respectively high and low pressure side electric energy, it can solve the stealing evidence that science can't be provided that prior art exists, and can't fundamentally prevent the problem of stealing.
The purpose of this utility model is achieved through the following technical solutions: can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight, it has the housing of high pressure measurement device GHG and the casing of coulometric analysis instrument DFX respectively, and high pressure measurement device GHG and coulometric analysis instrument DFX are corresponding mutually; Mounting circuit boards in the housing is provided with the high pressure measurement smart circuit on the circuit board, offer through wires hole on the housing, is equipped with in the housing and the corresponding current transformer of through wires hole, and current transformer is connected with circuit on the circuit board; Be respectively equipped with display, button and socket on the casing, be respectively equipped with circuit board and antenna in the casing, the coulometric analysis smart circuit is set on the circuit board.
For further realizing the purpose of this utility model, also can be achieved through the following technical solutions: described high pressure measurement smart circuit comprises central processor CPU, and central processor CPU joins with power circuit, A/D circuit, clock circuit, memory circuit and emission and receiving circuit respectively; Power circuit and battery join; A/D circuit and range conversion circuit join, and range conversion circuit and CT circuit join; Emission and receiving circuit and antenna join; The coulometric analysis smart circuit comprises central processor CPU 2, and central processor CPU 2 joins with receiver module and A/D circuit with display, button, 485 interfaces, emission respectively, and A/D circuit and clamp on amperemeter join.
Fasten end cap on the described housing port, end cap is provided with and the corresponding through hole of through wires hole; Power circuit, storer, battery case, antenna, CPU, emission are set respectively on the circuit board accept module.The housing shaped upper part is that rectangle, lower shape are the circular arc annular.Casing is the handset telephone shape.
The beneficial effect that the utility model can produce: because of the high pressure measurement device is installed on the high pressure inlet wire of power transformer, the high pressure measurement device is corresponding mutually with negative control middle-end, it can reflect the electric flux of electricity consumption from high-pressure side, and this electric flux signal is transmitted to negative control middle-end, negative control middle-end is transmitted to negative control center again for its grasp; Because of on the electric energy meter of power transformer low pressure end, connecting the coulometric analysis instrument by lead, the coulometric analysis instrument is corresponding mutually with the high pressure measurement device, the coulometric analysis instrument can either detect the power consumption of low pressure end load by electric energy meter, can also detect the electric flux of high-pressure side electricity consumption by the high pressure measurement device, and the power consumption of high-pressure side and low pressure end can be compared, to examine out real power consumption.The utility model has been taked scientific and reasonable technological means, not only can provide the evidence of science for examining out real power consumption, effectively prevented stealing, and can fundamentally avoid the economic loss of power supply department, widespread use can produce tangible society, economic benefit.
Description of drawings
Fig. 1 is an information about power testing process synoptic diagram of the present utility model;
Fig. 2 is the schematic block circuit diagram of the utility model high pressure measurement device GHG;
Fig. 3 is the schematic block circuit diagram of the utility model coulometric analysis instrument DFX;
Fig. 4 is the perspective view of the utility model high pressure measurement device GHG;
Fig. 5 is the perspective view after the housing 1 of the utility model high pressure measurement device GHG removes end cap 3, the main installation site of illustrative circuitry plate 4 in housing 1;
Fig. 6 is the perspective view of circuit board 4, and the form that power circuit, storer, battery case, antenna, CPU, emission are accepted module is set respectively on the main illustrative circuitry plate 4;
Fig. 7 is a coulometric analysis instrument DFX outside drawing, mainly illustrates to be respectively arranged with display and button on its front;
Fig. 8 is high pressure measurement device GHG information and electric power system process flow diagram;
Fig. 9 is the electrical energy consumption analysis process flow diagram.
Embodiment
Of the present utility modelly can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight, it has the housing 1 of high pressure measurement device GHG and the casing 11 of coulometric analysis instrument DFX respectively, and high pressure measurement device GHG and coulometric analysis instrument DFX are corresponding mutually; Mounting circuit boards 4 in the housing 1 is provided with the high pressure measurement smart circuit on the circuit board 4, offer through wires hole 2 on the housing 1, is equipped with in the housing 1 and through wires hole 2 corresponding current transformers, and current transformer is connected with circuit on the circuit board 4; Be respectively equipped with display 12, button 13 and socket on the casing 11, be respectively equipped with circuit board and antenna in the casing 11, the coulometric analysis smart circuit is set on the circuit board.The high pressure measurement smart circuit comprises central processor CPU, and central processor CPU joins with power circuit, A/D circuit, clock circuit, memory circuit and emission and receiving circuit respectively; Power circuit and battery join; A/D circuit and range conversion circuit join, and range conversion circuit and CT circuit join; Emission and receiving circuit and antenna join; The coulometric analysis smart circuit comprises central processor CPU 2, and central processor CPU 2 joins with receiver module and A/D circuit with display 12, button 13,485 interfaces, emission respectively, and A/D circuit and clamp on amperemeter join.Fasten end cap 3 on housing 1 port, end cap 3 is provided with and through wires hole 2 corresponding through holes; Power circuit 41, storer 42, battery case 43, antenna 44, CPU45, emission are set respectively on the circuit board 4 accept module 46.Housing 1 shaped upper part is that rectangle, lower shape are the circular arc annular.Casing 11 is the handset telephone shape.
The utility model is installed and used mode: existing low-temperature measurement device is made up of current transformer HG and electric energy meter DN, the low-temperature measurement device is installed on the power transformer BY low pressure end low voltage transmission line, electric energy meter DN is connected with negative control middle-end FZ by lead, and negative control middle-end FZ is corresponding with negative control center FX.High pressure measurement device GHG is installed on power transformer BY high-pressure side high pressure inlet wire, and high pressure measurement device GHG comprises current transformer and the electric power signal processor that mutual circuit connects; Electric energy meter DN is connected with coulometric analysis instrument DFX by lead, and coulometric analysis instrument DFX is corresponding with high pressure measurement device GHG.During work, the closed first high-voltage switch gear KG1 and second high-voltage switch gear KG2 power transformer BY operation earlier.At this moment, the high pressure inlet wire passes through wires hole, and high pressure measurement device GHG then gathers the electric flux storage of high pressure inlet wire and is transmitted to negative control middle-end FZ, and negative control middle-end FZ then is transmitted to this signal negative control center FZX for its grasp; Coulometric analysis instrument DFX can once hold the transformer BY of high pressure measurement device GHG reflection the transformer BY secondary terminals electric flux of electric flux and electric energy meter DN reflection to compare.
The effect of high pressure measurement device GHG of the present utility model: 1, will gather galvanometer and calculate behind KW and the KWh and to deposit chip in once in per 10 minutes.2, can outside on request at any time transmission store message.3, by different transformer coiling electric current number of wire turns and a plurality of taps are arranged to change no-load voltage ratio.4, the high amount of holding battery is housed, the life-span is at least more than half a year.5, inner core and main traverse line should insulate.6, program and router are calculated in interior design.7, appearance weathering resistance, day temperature, rainwater, strong wind etc. attack naturally.It is convenient when 8, the replacing battery changes transformer ratio.9, the information storage amount is at least more than 300,000,000.10, the high-altitude is landed and is not generally damaged.11, wireless signal 100 meters with interior effectively.
The effect of coulometric analysis instrument DFX of the present utility model: 1, can send the data that instruction acquisition high pressure measurement device GHG stores as requested at any time.2, can gather the power of electric energy meter output as required.3, can be with above-mentioned information calculations, contrast.4, can calculate power and electric weight by input voltage as requested.5, can calculate the long electric weight difference and the electricity charge amount of money as requested.6, profile is small and exquisite, hand-held convenient, multiple functional, as mobile phone.
The effect of negative control middle-end FZ of the present utility model: 1, can from high pressure measurement device GHG, gather power at any time automatically and be transferred to negative control center FX.2, electric weight, the power that can on request electric energy meter DN be gathered regularly flows to negative control center FX automatically.3, can store more than 1 year the electric weight of gathering from high pressure measurement device GHG and electric energy meter DN.4, negative control middle-end FZ obliterated data not when losing power supply.
The effect of negative control center FX of the present utility model: 1, bear control center FX main frame except that original function, the electric energy electric weight of also wanting energy automatic reception high pressure measurement device GHG to transmit at any time, and comparing by electric weight automatic and that electric energy meter DN transmits, as the alert notice relevant personnel site disposal in time that notes abnormalities.2, above data can deposit main frame in, can go out data by computer printing and report relevant leader.
The function of coulometric analysis instrument DFX of the present utility model: 1, transmit and receive function, gather power .2 that high pressure measurement device GHG deposits various data and same time of secondary electric energy meter DN as requested, gather secondary electric energy meter DN power, electric weight carries out the electric weight contrast.3, find out stealing time and institute's power-steeling quantity according to the difference of first and second electric weight, and calculate penal sum as requested.4, calculate the above loss on lines and tranformers of user power factor and secondary measurement point as requested, and from total electric weight, deduct.5, can calculate secondary side current mutual inductor ratio, calculate electric current.6, can calculate secondary power according to secondary voltage, the galvanometer that gather at the scene, and with high pressure measurement device GHG in the same temporal power gathered compare find out poor because of.7, the turnover line of low-voltage customer is adopted the small-sized clamp on amperemeter band line collection of self-control and enters among the coulometric analysis instrument DFX calculate.8, above data of gathering and result calculated can both deposit among the coulometric analysis instrument DFX.9, coulometric analysis instrument DFX can import and store in this service area all user power utilization equipment filess and high pressure measurement device GHG password so that call at any time.10, this analysis instrument accesses user cipher and is transmitted to high pressure measurement device GHG and can starts its database and gather.11, coulometric analysis instrument DFX adopts battery of mobile phone to get final product.Explanation in addition: coulometric analysis instrument DFX can be according to above setup menu and the button of requiring, as mobile phone and merchant logically handle very skillfully, quick, convenient, make and the designer can increase and reduce function as requested.
The technical requirement of high pressure measurement device GHG: 1, current range: 10A-400A.2,1.0 grades of current measurement precision.3, memory capacity 256K.4, battery capacity 250MA/h.5, battery life is more than 1.5 years.6, emissive power 10mw.7, communication distance 100m.8, communication baud rate 2400bps.9, antistatic degree of disturbance 15000V.10, anti-burst of pulses interference voltage 4000V.11, the clock accuracy is 0.5 second/day.12 seal degree IP54.13, ambient operating temperature-25 is ℃-60 ℃.
The current signal of per 10 minutes once sampling current transformers of the function declaration of high pressure measurement device GHG: A, high pressure measurement device GHG through mould/number (A/D) conversion, is measured actual electric current and is with the markers storage.B, each high pressure measurement device GHG have unique ID number.The instruction that C, high pressure measurement device GHG send by wireless signal according to the coulometric analysis instrument: 1, passback promptly is an electric current.2, the historical electric current record of passback.3, passback is ID number.4, average cumulative electric energy reference value, 5, receive coulometric analysis instrument DFX order and be provided with and revise ID number, date, time.
The technological difficulties of high pressure measurement device GHG: 1, low-power consumption because be powered battery, must guarantee that continuous working 1 year is more than half.2, highly reliable, this device will be as the foundation of differentiating whether stealing, and the working site does not allow to change at any time the high pressure measurement device GHG of inefficacy.3, high anti-interference, this device is installed on the hi-line, must have the ability of anti-high electromagnetic interference (EMI).4, anti-adverse environment, the working environment of high pressure measurement device GHG is in the open, must adapt to wide temperature, humidity environment, anti-Exposure to Sunlight, anti-rain, good airproof performance, anti-vibration, anti-drop ability is strong.
Coulometric analysis instrument DFX function declaration: 1, hand-held coulometric analysis instrument DFX has liquid crystal display and button, 2, be provided with and copy and accept the parameter of high pressure measurement device GHG, 3, current transformer ratio is set, 4, have two clamp on amperemeter sockets, can directly test current electric current, 5, have one 485 interface, can read electric energy and the current curve of electric energy meter DN with electric energy meter DN communication.6, can compare with high pressure measurement device GHG data, differentiate whether stealing.
Negative control middle-end type is respectively: K4GA42-532 and K3GA42-532.Negative control center: i.e. main station system: 1, master station application dbase: electricity consumption field management and service system.2, type of database: ORACLE.3, main website version: GRV3.52.4, type of server: DELL2850 front end processor server; DELL750 is the WEB server; The HP380 database server.Transmission mode is the GPRS transmission.
Normally use in the electric process a certain user, the electric load power that they use is more stable, one time power adds the loss on lines and tranformers that secondary calculating point is above, basically equal secondary power, if first and second power difference is greater than being abnormal surely more than 20%, should ascertain the reason, present electric power electricity supply and use equipment is difficult to find out the poor of first and second power of consumer and electric weight.The principle of work process is as follows:
1, user power utilization primary side (being regardless of high pressure or low pressure) is installed a high pressure measurement device GHG, this device is being stored electricity consumer electric power, electric weight and current value any time, these data can be as requested, control middle-end by the wireless device short-range transmission to customer charge, and be transferred to by the radio transmission system at negative control middle-end and the negative control center of electric company and bear the control center and analyze contrast, and the abnormal electricity consumer of electricity consumption given the alarm, negative control operator on duty enters site disposal according to the alert notification supervision of power consumption personnel of transmitting.The supervision of power consumption personnel find out the on-the-spot correlation data of the coulometric analysis instrument DFX that carries the stealing position and handle.
2, coulometric analysis instrument DFX be the supervision of power consumption personnel carry as the complete electric energy analytical equipment of mobile phone magnitude function, this device storage local all users' the consumer archives and the electricity consumption password at this family, as long as to 100 meters of user power utilization equipment with the interior user cipher of pressing, just can from this family high pressure measurement device GHG, collect moment electric power and the electric weight of any period and electric current, survey power, electric weight and the electric current of same time with secondary again and compare, and calculate difference.If any electricity filching behavior, can find out the stealing time from first and second side, calculate total power-steeling quantity and carry out electricity charge calculating (can access) anywhere as only calling the family archives.
3, all industrial users and lighting consumer are equipped with negative control middle-end at present.Negative control middle-end is carried out wireless self-timing transmission to the power load electric weight at this family to load control center of electric company, and can both sides converse, load is controlled at negative control center as requested, and monitoring is with power consumption or directly cut off the electricity supply and stop power supply, and anti-electricity-theft device is exactly wireless this system that incorporates into.
4, coulometric analysis instrument DFX also can carry out power, electric quantity acquisition to any low-voltage customer and little lighting consumer with the supervision of power consumption personnel and analyzes whether stealing.
Technical scheme described in the utility model is not limited only to the embodiment of present embodiment record, can also have other embodiment to finish the technical solution of the utility model.
The technology that the utility model is not described in detail partly is known technology.
Claims (5)
1, can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight, it has the housing (1) of high pressure measurement device GHG and the casing (11) of coulometric analysis instrument DFX respectively, it is characterized in that: high pressure measurement device GHG and coulometric analysis instrument DFX are corresponding mutually; The interior mounting circuit boards of housing (1) (4), circuit board is provided with the high pressure measurement smart circuit on (4), offer through wires hole (2) on the housing (1), be equipped with in the housing (1) and the corresponding current transformer of through wires hole (2), current transformer is connected with circuit on the circuit board (4); Be respectively equipped with display (12), button (13) and socket on the casing (11), casing is respectively equipped with circuit board and antenna in (11), and the coulometric analysis smart circuit is set on the circuit board.
2, according to claim 1ly can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight, it is characterized in that: the high pressure measurement smart circuit comprises central processor CPU, and central processor CPU joins with power circuit, A/D circuit, clock circuit, memory circuit and emission and receiving circuit respectively; Power circuit and battery join; A/D circuit and range conversion circuit join, and range conversion circuit and CT circuit join; Emission and receiving circuit and antenna join; The coulometric analysis smart circuit comprises central processor CPU 2, and central processor CPU 2 joins with receiver module and A/D circuit with display (12), button (13), 485 interfaces, emission respectively, and A/D circuit and clamp on amperemeter join.
3, according to claim 1ly can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight, it is characterized in that: fasten end cap (3) on housing (1) port, end cap (3) is provided with and the corresponding through hole of through wires hole (2); Power circuit (41), storer (42), battery case (43), antenna (44), CPU (45) are set respectively on the circuit board (4), launch and accept module (46).
4, according to claim 1ly can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight, it is characterized in that: housing (1) shaped upper part is that rectangle, lower shape are the circular arc annular.
5, according to claim 1ly can measure the anti-electricity-theft device of contrast to high-pressure side, low pressure end electric weight, it is characterized in that: casing (11) is the handset telephone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720017970 CN200996970Y (en) | 2007-01-26 | 2007-01-26 | Charge-evasion preventer for comparing high-voltage end and low-voltage end quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720017970 CN200996970Y (en) | 2007-01-26 | 2007-01-26 | Charge-evasion preventer for comparing high-voltage end and low-voltage end quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996970Y true CN200996970Y (en) | 2007-12-26 |
Family
ID=38995404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720017970 Expired - Fee Related CN200996970Y (en) | 2007-01-26 | 2007-01-26 | Charge-evasion preventer for comparing high-voltage end and low-voltage end quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200996970Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968504A (en) * | 2010-09-16 | 2011-02-09 | 浙江永昌仪表有限公司 | Electricity stealing detecting comparison meter, power supply network capable of detecting electricity stealing and electricity stealing detection method |
| CN102116782A (en) * | 2010-12-13 | 2011-07-06 | 中国电力科学研究院 | Electricity-stealing prevention on-line analysis method based on artificial intelligence |
| CN103323637A (en) * | 2013-05-23 | 2013-09-25 | 国家电网公司 | Low-voltage intelligent electric meter electricity-stealing checking device |
| CN103616562A (en) * | 2013-11-26 | 2014-03-05 | 航天科工深圳（集团）有限公司 | Ring main unit electricity larceny prevention system and method |
| CN105785087A (en) * | 2016-04-26 | 2016-07-20 | 宋绍哲 | Intelligent electric meter and electricity larceny prevention system |
| CN112379161A (en) * | 2020-11-17 | 2021-02-19 | 国家电网有限公司 | Alarm method for judging electricity stealing behavior |
| CN114062996A (en) * | 2021-11-18 | 2022-02-18 | 国网四川省电力公司营销服务中心 | Method, device, equipment and medium for checking transformation ratio of current transformer of power distribution network |
-
2007
- 2007-01-26 CN CN 200720017970 patent/CN200996970Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968504A (en) * | 2010-09-16 | 2011-02-09 | 浙江永昌仪表有限公司 | Electricity stealing detecting comparison meter, power supply network capable of detecting electricity stealing and electricity stealing detection method |
| CN102116782A (en) * | 2010-12-13 | 2011-07-06 | 中国电力科学研究院 | Electricity-stealing prevention on-line analysis method based on artificial intelligence |
| CN103323637A (en) * | 2013-05-23 | 2013-09-25 | 国家电网公司 | Low-voltage intelligent electric meter electricity-stealing checking device |
| CN103616562A (en) * | 2013-11-26 | 2014-03-05 | 航天科工深圳（集团）有限公司 | Ring main unit electricity larceny prevention system and method |
| CN105785087A (en) * | 2016-04-26 | 2016-07-20 | 宋绍哲 | Intelligent electric meter and electricity larceny prevention system |
| CN105785087B (en) * | 2016-04-26 | 2021-01-29 | 宁夏隆基宁光仪表股份有限公司 | Intelligent ammeter and electricity larceny prevention system |
| CN112379161A (en) * | 2020-11-17 | 2021-02-19 | 国家电网有限公司 | Alarm method for judging electricity stealing behavior |
| CN114062996A (en) * | 2021-11-18 | 2022-02-18 | 国网四川省电力公司营销服务中心 | Method, device, equipment and medium for checking transformation ratio of current transformer of power distribution network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100596331C (en) | High pressure measurement device and antitheft electric method for high-low pressure electric quantity measurement contrast | |
| CN202886463U (en) | Intelligent electric energy meter with functions of electric leakage remote monitoring and protection | |
| CN200996970Y (en) | Charge-evasion preventer for comparing high-voltage end and low-voltage end quantity | |
| US20190101411A1 (en) | Resource meter system and method | |
| CN205642505U (en) | Intelligent gas meter of gateway mode and system of checking meter thereof | |
| CN100533081C (en) | Switch cabinet contact temperature monitoring and alarming system | |
| CN205720336U (en) | A kind of modernization intelligent electric meter device | |
| CN206756246U (en) | A kind of gas meter, flow meter meter reading fare payment system that network payment is realized by NB IoT | |
| CN201335963Y (en) | Remote dispatching management system for electric device | |
| CN107607811A (en) | A kind of analysis system of electricity quality evaluation and on-line early warning | |
| CN105914535A (en) | Intelligent socket and interactive terminal device | |
| CN201051018Y (en) | Switch case contact temperature monitoring and alarming system | |
| CN106291021A (en) | A kind of intelligent power table batch meter | |
| CN205105003U (en) | Wisdom family terminal | |
| CN203416050U (en) | Transformer room low-voltage power supply remote real-time monitoring apparatus | |
| WO2019067638A1 (en) | Resource meter system and method | |
| CN101482994A (en) | Electronic voice alarm carrier communication electric energy meter | |
| CN209265586U (en) | A kind of pre-payment type intelligent electric meter based on mobile terminal | |
| CN107085147A (en) | Distribution grounding resistance on-line monitoring system | |
| CN216082874U (en) | Intelligent meter box terminal and intelligent meter box adopting same | |
| CN207924039U (en) | A kind of Portable integrated electric wiring intelligent monitor | |
| CN203259202U (en) | WIFI water meter, WIFI heat meter and remote information management system of WIFI water meter and WIFI heat meter | |
| CN203502453U (en) | Wireless public network communication module for three-phase intelligent electric energy meter | |
| CN206848362U (en) | Intelligent wireless device for measurement of electrical energy | |
| CN109188098A (en) | A kind of ground resistance on-line monitoring management system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071226 Termination date: 20130126 |