SI21151A - Meter, for example power meter, adapted to prevent misuse by interfering magnetic fields - Google Patents
Meter, for example power meter, adapted to prevent misuse by interfering magnetic fields Download PDFInfo
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- SI21151A SI21151A SI200200022A SI200200022A SI21151A SI 21151 A SI21151 A SI 21151A SI 200200022 A SI200200022 A SI 200200022A SI 200200022 A SI200200022 A SI 200200022A SI 21151 A SI21151 A SI 21151A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
Abstract
Description
Merilnik, na primer merilnik električne energije, prirejen za preprečevanje zlorabe s pomočjo motilnega magnetnega poljaA meter, such as an electricity meter, adapted to prevent misuse by a magnetic interference field
Izum se nanaša na merilnik, na primer merilnik električne energije, kije prirejen za preprečevanje zlorabe s pomočjo motilnega magnetnega polja znotraj merilnikovega plombiranega okrova z gostoto nad določenim pragom, tako da na to zlorabo opozori s signalom, prednostno pa jo prikaže na samodejno neizbrisljiv način.The invention relates to a meter, such as an electricity meter, adapted to prevent misuse by means of a magnetic interference field within the meter's sealed enclosure with a density above a certain threshold, by signaling this abuse and preferably displaying it in an auto-indelible manner.
Izum je po mednarodni klasifikaciji patentov uvrščen v razrede G 01R 01/20, G 01R 11/24 in G 01R 11/25.According to the international classification of patents, the invention is classified in classes G 01R 01/20, G 01R 11/24 and G 01R 11/25.
Naloga izuma je predlagati merilnik, na primer merilnik električne energije, ki je za preprečevanje zlorabe s pomočjo motilnega magnetnega polja prirejen tako, da prikaže, da je znotraj plombiranega okrova merilnika zaznano motilno magnetno polje z gostoto nad gostoto praga, pri čemer je prikaz takšne zaznave prednostno samodejno neizbrisljiv.It is an object of the invention to propose a meter, such as an electricity meter, which is adapted to prevent misuse by a disturbing magnetic field by indicating that an intermittent magnetic field with a density above the threshold density is detected inside the sealed housing of the meter, indicating such detection. preferably automatically indelible.
Merilnik električne energije je med uporabo lahko podvržen nedovoljenim manipulacijam s pomočjo motilnega magnetnega polja, ki prodre skozi merilnikov plombirani okrov in vpliva na merilno točnost in na polno funkcionalnost merilnika. Ta vpliv se poskuša zmanjšati, s tem da se za posamezne sestavne dele merilnika ne uporabijo feromagnetni materiali ali pa se poveča oddaljenost njegovih vitalnih delov od mest na plombiranem okrovu, ki so primerna za vplivanje z motilnim magnetnim poljem. Prvi ukrep neugodno vpliva na življensko dobo števca, drugi pa na merilnikovo razsežnost. Vgradijo se lahko dodatni feromagnetni ščiti ali oklopi ali pa se celo uporabi okrov iz jeklene litine, toda doseže se le omilitev škodljivega vpliva motilnega magnetnega polja. Distributerji električne energije predvsem pogrešajo možnost, da se dokaže zloraba merilnika s pomočjo motilnega magnetnega polja ali pa vsaj odkrije, da takšna zloraba poteka.The power meter may be subject to unauthorized manipulation by use of an interfering magnetic field, which penetrates the meter's sealed housing and affects the measuring accuracy and the full functionality of the meter. This influence is minimized by avoiding the use of ferromagnetic materials for the individual components of the meter or by increasing the distance of its vital parts from the places on the sealed housing which are suitable for interference with the magnetic field. The first measure adversely affects the lifetime of the meter and the second one has an impact on the meter dimension. Additional ferromagnetic shields or shields may be installed, or even cast iron enclosures may be used, but only the attenuation of the harmful effect of the interfering magnetic field can be attained. Electricity distributors, in particular, miss the possibility of proving misuse of the meter by means of a magnetic interference field, or at least discover that such abuse is taking place.
Navedena naloga je rešena z merilnikom, na primer merilnikom električne energije, kije prirejen za preprečevanje zlorabe s pomočjo motilnega magnetnega polja in je po izumu v prednostni prvi varianti značilen po tem, da je znotraj plombiranega okrova merilnika nameščen vsaj en pragovni detektor gostote magnetnega polja in da je pragovni detektor gostote magnetnega polja povezan s samodejno neizbrisljivim prikazovalnikom, tako da le-ta izvaja samodejno neizbrisljiv prikaz zaznave magnetnega polja z gostoto nad gostoto praga.The said problem is solved by a meter, such as an electricity meter, adapted to prevent misuse by means of a interfering magnetic field, and according to the invention in the first preferred embodiment, characterized in that at least one threshold magnetic field density detector is housed within the sealed housing of the meter and that the magnetic field density threshold detector is connected to an auto-indelible display such that it automatically performs an auto-indelible magnetic field detection display with a density above the threshold density.
Merilnik v prvi varianti po izumu je predlagan v sedem izvedbenih primerih, katerih značilnosti so opredeljene v podzahtevkih 2 do 8.The meter in the first embodiment of the invention is proposed in seven embodiments, the characteristics of which are defined in sub-claims 2 to 8.
Navedena naloga pa je rešena tudi z merilnikom, ki je prirejen za preprečevanje zlorabe s pomočjo motilnega magnetnega polja in je po izumu v drugi varianti značilen po tem, da je znotraj plombiranega okrova merilnika nameščen vsaj en pragovni detektor gostote magnetnega polja, ki je izveden kot hermetično zaprti kontaktnik, in da je pragovni detektor gostote magnetnega polja na napetostni vir priključen zaporedno z medsebojno vzporedno vezanima zvočnim opozorilnikom in svetlobnim opozorilnikom, tako da tadva prikazujeta prisotnost magnetnega polja z gostoto nad gostoto praga znotraj merilnikovega okrova.The said problem is also solved by a meter adapted to prevent misuse by means of a magnetic interference field and according to the invention in the second embodiment, characterized in that at least one threshold magnetic field density detector is arranged inside the sealed housing of the meter, which is designed as hermetically sealed contactor, and that the magnetic field density threshold detector is connected to the voltage source in series with an audible warning signal and a light signal in parallel, so that both indicate the presence of a magnetic field with a density above the threshold density inside the meter box.
Merilnik, po izumu prirejen za preprečevanje zlorabe s pomočjo motilnega magnetnega polja, v izvedbenih primerih prednostne prve variante omogoča nedvoumno ugotoviti, ali je bila njegova notranjost izpostavljena motilnemu magnetnemu polju tolikšne gostote, da je prihajalo do nepravilnega ali motenega delovanja merilnika.A meter according to the invention adapted to prevent misuse by means of a magnetic interference field, in embodiments of the preferred first variant, it is possible to unambiguously determine whether its interior has been subjected to a magnetic field of interference with a density that caused the malfunction or disturbance of the meter.
Izum bo v nadaljnjem podrobno obrazložen na osnovi opisa izvedbenih primerov ter pripadajočega načrta, ki prikazuje na sl. 1, 2a, 2b, 4a, 4b, 5, 6, 7 in 8 merilnik, prirejen za preprečevanje zlorabe s pomočjo motilnega magnetnega polja, v sedem izvedbenih primerih prve variante po izumu in sl. 3 merilnik, prirejen za preprečevanje zlorabe s pomočjo motilnega magnetnega polja, v izvedbenem primeru druge variante po izumu.The invention will now be further explained in detail based on the description of the embodiments and the accompanying plan showing in FIG. 1, 2a, 2b, 4a, 4b, 5, 6, 7 and 8 a meter adapted to prevent misuse by means of a magnetic interference field, in seven embodiments of the first embodiment of the invention and FIG. 3 is a meter adapted to prevent misuse by means of a magnetic interference field, in the embodiment of the second embodiment of the invention.
Merilnik po izumu, na primer merilnik električne energije, za preprečevanje zlorabe s pomočjo motilnega magnetnega polja je v prvi varianti (sl. 1, 2a, 2b, 4a, 4b in 5-8) prirejen tako, da se prikaže, ali je bilo znotraj plombiranega okrova merilnika zaznano motilno magnetno polje z gostoto nad gostoto praga, in je ta prikaz omenjene zaznave samodejno neizbrisljiv.The meter according to the invention, for example, an electricity meter, for preventing misuse by means of a magnetic interference field, in the first embodiment (Figs. 1, 2a, 2b, 4a, 4b and 5-8), is adapted to show whether it was inside a sealed magnetic enclosure with a detectable magnetic field with a density above the threshold density, and this display of said detection is automatically indelible.
Znotraj plomiranega okrova C merilnika je nameščen vsaj en pragovni detektor la’, la”; lb; ld; le; lf; lg, 2g; lh’, lh” gostote magnetnega polja. Ta pragovni detektor gostote magnetnega polja je povezan s samodejno neizbrisljivim prikazovalnikom 3a; 3b; 3d; 2e’; 5f; 3g, 3g’; lh’, lh”, tako da le-ta izvaja samodejno neizbrisljiv prikaz zaznave magnetnega polja z gostoto nad gostoto praga.At least one threshold detector la ', la' is installed inside the plummeted enclosure C of the meter; lb; ld; le; lf; lg, 2g; lh ', lh' of the magnetic field density. This magnetic field density threshold detector is coupled to an auto-indelible display 3a; 3b; 3d; 2e '; 5f; 3g, 3g '; lh ', lh', so that it automatically performs an indelible display of magnetic field detection with a density above the threshold density.
V prvem izvedbenem primeru (sl. 1) prve variante po izumu merilnika je kot pragovni detektor la’, la” gostote magnetnega polja uporabljeno prožilo la’, la”, ki je izvedeno kot enostransko vpeta podajna feromagnetna letev. Le-ta se pod vplivom prečnega magnetnega polja - na slikah je ponazorjeno s simbolom podkvastega magneta in z oznako M - z gostoto nad gostoto praga dovolj upogne, da se njegov podporni del 2a’, 2a” izmakne izpod enega konca temu prožilu prirejene prikazovalne padalne letve 3a. Padalna letev 3a je na svojem drugem koncu zasučno (puščica Aa) vpeta in deluje kot prikazovalnik zaznanega magnetnega polja z gostoto nad gostoto praga. Padalna letev 3a je lahko opremljena z napisom POZOR - MAGNET in je v začetnem stanju pred padcem lahko zakrita z opozorilno ploščico 4a, kije lahko opremljena z napisom ZAŠČITA PRED MAGNETOM·, po padcu padalna letev 3a obstane v novi legi in je vidna skozi čelno ploščo FP okrova C. Oba napisa sta v svarilni barvi.In the first embodiment (Fig. 1) of the first variant according to the invention of the meter, the triggering detector la ', la' of the magnetic field density is a trigger 'la', la ', which is made as a single-sided feed ferromagnetic bar. Under the influence of the transverse magnetic field - illustrated in the drawings with the symbol of a horseshoe magnet and marked M - with a density above the threshold density, it bends sufficiently to displace its supporting part 2a ', 2a' from one end of the actuated display parachute laths 3a. The skid strip 3a is rotated at its other end (arrow Aa) and acts as a display of the detected magnetic field with a density above the threshold density. Parachute 3a can be equipped with the inscription CAUTION - MAGNET and, in its initial state, before fall it may be obscured by a warning plate 4a, which may be equipped with the inscription PROTECTION AGAINST MAGNET ·, after the fall the parachute 3a stays in a new position and is visible through the front panel FP of the casing C. Both inscriptions are in warning color.
V drugem izvedbenem primeru (sl. 2a in 2b) prve variante po izumu merilnika je kot pragovni detektor lb gostote magnetnega polja zopet uporabljeno prožilo lb v obliki enostransko vpete podajne feromagnetne letve kot v prvem izvedbenem primeru. Feromagnetna podajna letev prožila lb je prednostno postopno vijačno zvita okoli svoje osi, da se lahko upogne pod silo v magnetnem polju iz raznih strani. Pod vplivom magnetnega polja z gostoto nad gostoto praga se podporni del 2b prožila lb izmakne izpod prikazovalnega traku 3b (sl. 2a), ki pod silo vzmeti 4b zdrsne v smeri puščice Ab mimo okenca 5b v merilnikovi čelni plošči FP. V okencu 5b obstane kričeče obarvano opozorilno polje 6b traku 3b, ki prikazuje (napis X), daje bilo zaznano magnetno polje z gostoto nad gostoto praga (sl. 2b).In the second embodiment (Figs. 2a and 2b) of the first variant according to the invention of the meter, the threshold detector lb of the magnetic field density was again used by the actuator lb in the form of a unilaterally fed ferromagnetic lath, as in the first embodiment. The ferromagnetic feed lb actuator lb is preferably progressively screwed about its axis so that it can be flexed under magnetic force from various sides. Under the influence of a magnetic field with a density above the threshold density, the support part 2b of the actuator 1b moves out of the display strip 3b (Fig. 2a), which under the force of the spring 4b slides in the direction of the arrow Ab past the window 5b in the meter front panel FP. In box 5b, there is a screaming colored warning box 6b of lane 3b showing (X) that a magnetic field with a density above the threshold density was detected (Fig. 2b).
V tretjem izvedbenem primeru (sl. 4a in 4b) prve variante po izumu merilnika je pragovni detektor ld gostote magnetnega polja izveden kot hermetično zaprti kontaktnik ld (sl. 4a). Le-ta je na napetostni vir priključen zaporedno z zaščitnim uporom 2d in prikazovalnim delovnim uporom 3d. Pod vplivom magnetnega polja z gostoto nad gostoto praga kontaktnk ld sklene kontakta in prikazovalni delovni upor 3d, ki je viden skozi okence v merilnikovi čelni plošči FP (sl. 4b), po kratkem času trajno spremeni svojo barvo in nato pregori. Na ta način obarvani delovni upor 3d deluje kot prikazovalnik, ki prikazuje, daje bilo znotraj merilnikovega okrova C zaznano magnetno polje z gostoto nad gostoto praga.In the third embodiment (Figs. 4a and 4b) of the first variant according to the invention of the meter, the threshold detector ld of the magnetic field density is designed as a hermetically sealed contactor ld (Fig. 4a). It is connected to the voltage source in series with a protective resistor 2d and a display operating resistor 3d. Under the influence of a magnetic field with a density above the threshold density, the contact ld makes contact and the display operating resistor 3d, visible through the window in the meter front panel FP (Fig. 4b), changes its color permanently after a short time and then burns. In this way, the colored working resistor 3d acts as a display indicating that a magnetic field with a density above the threshold density was detected inside the meter enclosure C.
V četrtem izvedbenem primeru prve variante po izumu merilnika je pragovni detektor ie gostote magnetnega polja zopet izveden kot hermetično zaprti kontaktnik le (sl. 5). Hermetično zaprti kontaktnik le je na napetostni vir priključen zaporedno z varovalko 2e s taljivim vložkom in se sklene pod vplivom magnetnega polja z gostoto nad gostoto praga. Pri tem varovalka 2e pregori. S tem je zabeležena zaznava magnetnega polja z gostoto nad gostoto praga. Prednostno je hermetično zaprti kontaktnik le premoščen s svetlečo diodo le’, ki sveti v stanju z gostoto magnetnega polja pod vrednostjo praga, in je varovalka 2e premoščena s svetlečo diodo 2e’, ki sveti, potem ko je bilo zaznano magnetno polje z gostoto nad gostoto praga in je varovalka 2e pregorela.In the fourth embodiment of the first variant according to the invention of the meter, the threshold detector of the magnetic field density IU is again made as a hermetically sealed contact only (Fig. 5). The hermetically sealed contact is only connected to the voltage source in series by a fuse 2e with a fusible insert and is closed under the influence of a magnetic field with a density above the threshold density. In doing so, fuse 2e blows. This detects a magnetic field with a density above the threshold density. Preferably, the hermetically sealed contact is only bridged with light emitting diode le 'which illuminates in a state with a magnetic field density below the threshold value, and fuse 2e is bridged with light emitting diode 2e' which illuminates after a magnetic field with a density above density has been detected threshold and fuse 2e is blown.
V petem izvedbenem primeru prve variante po izumu merilnika je pragovni detektor lf gostote magnetnega polja izveden kot hermetično zaprti kontaktnik lf (sl. 6). Ta je na napetostni vir priključen zaporedno z zaščitnim uporom 2f in grelnim delovnim uporom 3f. Njegova kontakta se skleneta pod vplivom magnetnega polja z gostoto nad gostoto praga in tedaj grelni delovni upor 3f segreje ob sebi nameščeni bimetalni trak 4f toliko, da se ta izmakne izpod enega konca prikazovalne padalne letve 5f. Ta je na drugem koncu zasučno vpeta, tako da pade z zasukom v smeri puščice Af. Povešena padalna letev 5f prikazuje, da je bilo zaznano magnetno polje z gostoto nad gostoto praga.In the fifth embodiment of the first variant according to the invention of the meter, the threshold detector lf of the magnetic field density is made as a hermetically sealed contactor lf (Fig. 6). It is connected to the voltage source in series with a protective resistor 2f and a heating resistor 3f. Its contacts are made under the influence of a magnetic field with a density above the threshold density, and then the heating working resistor 3f heats up the adjacent bimetallic strip 4f so that it moves out from one end of the display deck 5f. This is rotated at the other end so that it falls with the rotation in the direction of the arrow Af. The suspended 5f parachute indicates that a magnetic field with a density above the threshold density was detected.
V šestem izvedbenem primeru prve variante po izumu merilnika je pragovni detektor gostote magnetnega polja izveden s senzorjem lg magnetnega polja, katerega izhod je priključen na vhod detektorja 2g nivoja s histerezo, izhod le-tega pa na neizbrisljivi pomnilnik, naprimer EEPROM (sl. 7). Kot senzor lg magnetnega polja se lahko uporabijo Hallov senzor, magnetotranzistor, magnetoresistvni senzor in podobni senzorji. Trenutna prisotnost magnetnega polja z gostoto nad gostoto praga se prikaže, s tem da sveti na detektor 2g nivoja priključena svetleča dioda 2g’, vsaj enkratna prekoračitev gostote praga pa je zabeležena v neizbrisljivem pomnilniku 3g, in trajno prikazana, s tem da trajno sveti na pomnilnik 3g priključena svetleča dioda 3g’.In the sixth embodiment of the first variant according to the invention of the meter, a threshold magnetic field density detector is made with a magnetic field sensor whose output is connected to the input of the 2g level detector by hysteresis and its output to non-volatile memory, such as EEPROM (Fig. 7). . Hall sensor, magnetotransistor, magnetoresistive sensor and similar sensors may be used as the magnetic field sensor. The instantaneous presence of a magnetic field with a density above the threshold density is shown by illuminating a 2g 'level LED connected to the level detector 2g, and at least a single threshold density exceedance is recorded in non-volatile memory 3g and permanently displayed by permanently illuminating on the memory 3g 3g 'LED connected.
V sedmem izvedbenem primeru prve variante po izumu merilnika sta pragovni detektor gostote magnetnega polja in hkrati samodejno neizbrisljivi prikazovalnik izvedena kot eden ali več lističev lh’, lh” iz feromagnetnega materiala, ki so pritrjeni na notranji strani okrova C (sl. 8). Lističi lh’, lh” so lahko namagneteni. Sprememba magnetnega momenta teh omenjenih neprožnih feromagnetnih lističev zaradi spremenjene upognjenosti ali namagnetenosti le-teh - zazna se lahko tudi skozi merilnikov okrov C s pomočjo merilnika magnetnega pretoka - priča o tem, daje bilo vsaj enkrat zaznano magnetno polje z gostoto nad gostoto praga.In the seventh embodiment of the first variant according to the invention of the meter, the threshold detector of the magnetic field density and, at the same time, the auto-indelible display are made as one or more slips lh ', lh' made of ferromagnetic material, which are secured on the inside of the case C (Fig. 8). The lh ', lh' leaves can be magnetized. The change in the magnetic moment of these aforementioned non-flexible ferromagnetic slips due to altered bending or magnetization of these - it can also be detected through the encoders C by means of a magnetic flux meter - indicates that a magnetic field with a density above the threshold density was detected at least once.
Merilnik po izumu, na primer merilnik električne energije, za preprečevanje zlorabe s pomočjo motilnega magnetnega polja pa je v drugi varianti (sl. 3) prirejen tako, da se prikazuje, ali se znotraj okrova C merilnika zaznava motilno magnetno polje z gostoto nad gostoto praga.The meter according to the invention, for example an electricity meter, is adapted in the second embodiment (Fig. 3) to prevent abuse by a magnetic field with a density above the threshold density in order to prevent misuse by means of a magnetic interference field. .
Znotraj okrova C merilnika je nameščen vsaj en pragovni detektor lc gostote magnetnega polja, ki je izveden kot hermetično zaprti kontaktnik lc, naprimer v smeri treh koordinatnih osi, ki se lahko odzovejo na motilno magnetno polje Bc v raznih smereh. Rele lc je preko zaščitnega upora 2c’ in usmerniške priprave 2c” priključen na napetostni vir in vezan na zaporedno z medsebojno vzporedno vezanima zvočnim opozorilnikom 3c’ in svetlobnim opozorilnikom 3c”. Tadva opozarjata na trenutno prisotnost magnetnega polja znotraj merilnikovega okrova C z gostoto nad gostoto praga.At least one threshold magnetic field density detector lc is housed inside the meter housing C, which is designed as a hermetically sealed contactor lc, for example in the direction of three coordinate axes that can respond to the interfering magnetic field Bc in different directions. The relay lc is connected to a voltage source via a protective resistor 2c 'and a rectifier 2c' and is connected in series with an audible warning signal 3c 'and a warning light 3c' in series. They also point to the current presence of a magnetic field inside the meter enclosure C with a density above the threshold density.
Delovanje merilnika, ki je z izumom prirejen za preprečevanje zlorabe s pomočjo motilnega magnetnega polja, je sicer razvidno iz dosedanjega opisa, potrebno pa je pojasniti, da se kot vrednost praga za znotraj merilnikovega plombiranega okrova ugotovljeno gostoto magnetnega polja vzame vrednost, ki še omogoča pravilno in nemoteno delovanje merilnika in se izvede iz predpisov mednarodnih oziroma nacionalnih standardov.The operation of the meter, which according to the invention is adapted for the prevention of misuse by means of the interfering magnetic field, can be seen from the previous description, but it should be clarified that the value of the threshold for the magnetic field density determined inside the meter is sealed, which still allows correct and smooth operation of the meter and is carried out from the regulations of international or national standards.
ISKRAEMECO,ISKRAEMECO,
Claims (9)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200200022A SI21151A (en) | 2002-01-31 | 2002-01-31 | Meter, for example power meter, adapted to prevent misuse by interfering magnetic fields |
| PCT/SI2003/000003 WO2003065055A2 (en) | 2002-01-31 | 2003-01-30 | Magnetic field detection system for an electricity meter |
| AU2003238703A AU2003238703A1 (en) | 2002-01-31 | 2003-01-30 | Magnetic field detection system for an electricity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200200022A SI21151A (en) | 2002-01-31 | 2002-01-31 | Meter, for example power meter, adapted to prevent misuse by interfering magnetic fields |
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| SI21151A true SI21151A (en) | 2003-08-31 |
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| SI200200022A SI21151A (en) | 2002-01-31 | 2002-01-31 | Meter, for example power meter, adapted to prevent misuse by interfering magnetic fields |
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| AU (1) | AU2003238703A1 (en) |
| SI (1) | SI21151A (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319418A (en) * | 2014-07-30 | 2016-02-10 | 萨基姆通讯能源及电信联合股份公司 | Electric-meter-type meter |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0625939D0 (en) * | 2006-12-27 | 2007-02-07 | Polymeters Response Internat L | Magnetic field indicator and utility meter incorporating the same |
| CN101865957B (en) * | 2009-04-14 | 2012-06-27 | 深圳长城开发科技股份有限公司 | Method and device for detecting electric discharge interference and electric energy meter provided with the device |
| US8305232B2 (en) | 2009-11-19 | 2012-11-06 | Silver Spring Networks, Inc. | Utility network interface device configured to detect and report abnormal operating condition |
| WO2011062627A2 (en) * | 2009-11-19 | 2011-05-26 | Silver Spring Networks, Inc. | Utility network interface device configured to detect and report abnormal operating condition |
| US8368555B2 (en) | 2009-11-19 | 2013-02-05 | Silver Spring Networks, Inc. | Utility network interface device configured to detect and report abnormal operating condition |
| US8423637B2 (en) | 2010-08-06 | 2013-04-16 | Silver Spring Networks, Inc. | System, method and program for detecting anomalous events in a utility network |
| CN102565475B (en) * | 2012-01-18 | 2014-06-18 | 国家电网公司 | Electricity stealing prevention device for electric energy meter |
| ITRM20130229A1 (en) | 2013-04-17 | 2014-10-18 | Bitron Spa | DETECTED OR MEASURED MEASUREMENT EQUIPMENT. |
| CN103257257A (en) * | 2013-05-03 | 2013-08-21 | 山东菲达电器有限公司 | Electricity larceny prevention low-voltage measuring cabinet |
| CN105425004B (en) * | 2015-12-23 | 2019-03-01 | 深圳市金正方科技股份有限公司 | Electric energy measuring equipment and its stealing event detecting method, device |
| EP3446075B1 (en) * | 2016-04-21 | 2020-04-01 | Consejo Superior de Investigaciones Cientificas (CSIC) | Device for detecting fraud in meters and related method |
| JP6614100B2 (en) * | 2016-11-01 | 2019-12-04 | オムロン株式会社 | Electricity meter and method of identifying the electricity meter fire location |
| CN110658486A (en) * | 2019-09-27 | 2020-01-07 | 杭州海兴电力科技股份有限公司 | Antimagnetic detection device of secondary electric power metering equipment |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2535466C3 (en) * | 1975-08-08 | 1982-04-01 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Arrangement to enable the detection of improper magnetic influence on measuring devices, especially electricity meters |
| CH604183A5 (en) * | 1977-06-03 | 1978-08-31 | Landis & Gyr Ag | |
| DE2906621A1 (en) * | 1979-02-21 | 1980-09-04 | Licentia Gmbh | Electricity supply meter with protection against tampering - has device to detect and compensate for the influence of foreign magnetic field using shorted turns |
| US4542337A (en) * | 1982-09-30 | 1985-09-17 | Honeywell Inc. | Electro-mechanical anti-tampering device for electric meters |
| US5086292A (en) * | 1989-10-31 | 1992-02-04 | Iris Systems Inc. | Tamper detection device for utility meter |
| FR2701122B1 (en) * | 1993-01-29 | 1995-04-14 | Sagem | Magnetic bubble device to detect and memorize the movement of a part. |
| US5910774A (en) * | 1996-09-18 | 1999-06-08 | Itron, Inc. | Sensor for count and tamper detection |
| GB2334338A (en) * | 1998-02-12 | 1999-08-18 | Abb Metering Syst Ltd | Tamper detection in electro-mechanical electricity consumption meters |
| FR2777079B1 (en) * | 1998-04-06 | 2000-05-12 | Schlumberger Ind Sa | DEVICE FOR DETECTING THE OPENING OF A COUNTER |
| GB2347225A (en) * | 1999-02-25 | 2000-08-30 | C K Electronics Sdn Bhd | Electric utility meter with means to detect and report theft |
| GB9920241D0 (en) * | 1999-08-27 | 1999-10-27 | Breed Automotive Tech | Multi pole activation magnetic rotary sensing device |
-
2002
- 2002-01-31 SI SI200200022A patent/SI21151A/en not_active IP Right Cessation
-
2003
- 2003-01-30 AU AU2003238703A patent/AU2003238703A1/en not_active Abandoned
- 2003-01-30 WO PCT/SI2003/000003 patent/WO2003065055A2/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319418A (en) * | 2014-07-30 | 2016-02-10 | 萨基姆通讯能源及电信联合股份公司 | Electric-meter-type meter |
| CN105319418B (en) * | 2014-07-30 | 2018-10-26 | 萨基姆通讯能源及电信联合股份公司 | electronic flowmeter type flowmeter |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003065055A2 (en) | 2003-08-07 |
| WO2003065055B1 (en) | 2004-04-22 |
| WO2003065055A3 (en) | 2004-03-18 |
| AU2003238703A1 (en) | 2003-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| IF | Valid on the prs date | ||
| KO00 | Lapse of patent |
Effective date: 20051125 |