EP3857180A1 - Maintien de données redondantes sur un compteur de gaz - Google Patents

Maintien de données redondantes sur un compteur de gaz

Info

Publication number
EP3857180A1
EP3857180A1 EP19867731.2A EP19867731A EP3857180A1 EP 3857180 A1 EP3857180 A1 EP 3857180A1 EP 19867731 A EP19867731 A EP 19867731A EP 3857180 A1 EP3857180 A1 EP 3857180A1
Authority
EP
European Patent Office
Prior art keywords
data
signal
gas meter
processor
power
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
Application number
EP19867731.2A
Other languages
German (de)
English (en)
Other versions
EP3857180A4 (fr
Inventor
Roman Leon ARTIUCH
Francisco Manuel GUTIERREZ
Francisco Enrique JIMENEZ
Jeff Thomas MARTIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Natural Gas Solutions North America LLC
Original Assignee
Natural Gas Solutions North America LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US16/147,785 external-priority patent/US20190101426A1/en
Application filed by Natural Gas Solutions North America LLC filed Critical Natural Gas Solutions North America LLC
Publication of EP3857180A1 publication Critical patent/EP3857180A1/fr
Publication of EP3857180A4 publication Critical patent/EP3857180A4/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/06—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission
    • G01F1/075—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with tangential admission with magnetic or electromagnetic coupling to the indicating device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/10—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission
    • G01F1/115—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects using rotating vanes with axial admission with magnetic or electromagnetic coupling to the indicating device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06—Indicating or recording devices
    • G01F15/061—Indicating or recording devices for remote indication
    • G01F15/063—Indicating or recording devices for remote indication using electrical means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
    • G01F3/04—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls
    • G01F3/06—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having rigid movable walls comprising members rotating in a fluid-tight or substantially fluid-tight manner in a housing
    • G01F3/10—Geared or lobed impeller meters

Definitions

  • Utility companies deliver a wide range of resources to customers. These resources include fuel gas for heat, hot water, and cooking. It is normal for the utility to install its own equipment on site to measure consumption of the fuel gas. This equipment often includes a gas meter to measure or“meter” an amount of fuel gas the customer uses (so the utility can provide an accurate bill). Likely, the gas meter is subject to certain "legal metrology" standards that regulatory bodies promulgate under authority or legal framework of a given country or territory. These standards are in place to ensure the gas meter provides accurate and repeatable data, essentially to protect consumers from inappropriate billing practices. In the past, gas meters made use of mechanical“counters” to meter consumption of fuel gas. These mechanisms could leverage flow of the fuel gas into an essentially immutable measure of consumption.
  • FIG. 1 depicts a schematic diagram of an exemplary embodiment of an encoder device
  • FIG. 2 depicts a schematic diagram of an example of the encoder device of FIG. 1;
  • FIG. 3 depicts a schematic diagram of an example of the encoder device of FIG. 1;
  • FIG. 4 depicts a schematic diagram of memory for use in the device of FIG. 1;
  • FIG. 5 depicts a schematic diagram of an example of the encoder device of FIG. 1;
  • FIG. 6 depicts a perspective view of the encoder of FIG. 5 on an exemplary gas meter
  • FIG. 7 depicts a perspective view of the gas meter of FIG. 6 in partially-exploded form
  • FIG. 8 depicts a schematic diagram of exemplary structure for a power unit for use in the encoder device of FIG. 1;
  • FIG. 9 depicts a perspective view of exemplary structure for the gas meter.
  • This discussion describes embodiments with hardware to harvest energy.
  • the embodiments may include devices that can meter flow of materials. These devices include gas meters, which this discussion uses to illustrate the concepts herein.
  • the hardware integrates into the gas meter to maintain data that might otherwise be lost due to problems with power or electronics.
  • Other embodiments are with the scope of this disclosure.
  • FIG. 1 depicts a schematic diagram of an exemplary embodiment of an encoder device 100.
  • the metrology hardware 102 may embody devices that quantify a value that defines flow parameters of resource 104, typically as it flows in a conduit 106. These devices may include an indexing unit 108 that couples with a metering unit 110 to exchange a digital signal Si.
  • the metering unit 110 may couple with the conduit 106 to locate a flow mechanism 112 in the flow of resource 104.
  • the encoder device 100 may include a data processing unit 114 with an interface unit 116 that couples with the flow mechanism 112.
  • the interface unit 116 may include a sensor unit 118 and a power unit 120 that generate a data signal Di and power signal Pi, respectively.
  • the encoder device 100 is configured to generate redundant data in lieu of power or other disruptions on the metrology hardware 102. These configurations can essentially “back-up” data that corresponds to precise volume of material that flows through the metrology hardware 102. This feature outfits the metrology hardware 102 to maintain consistent records of consumer consumption, even with power disruptions or outages that might normally foreclose activities by the metrology hardware 102 to collect and retain data of this type.
  • the metrology hardware 102 may be configured to measure or“meter” flow of material. These configurations often find use in residential and commercial locations to quantify demand for resource 104 at a customer. It is possible that metrology hardware 102 is found in custody transfer or like inventory management applications as well.
  • resource 104 may be fuel gas (like natural gas); but the metrology hardware 102 may measure consumption of other solid, fluids (e.g., water), and solid-fluid mixes.
  • the conduit 106 may embody pipes or pipelines. These pipes may form part of a distribution network that distributes fuel gas 104 to customers.
  • the distribution network may employ intricate networks of piping that cover vast areas of towns or cities with hundreds or thousands customers. In most cases, utilities maintain responsibility for upkeep, maintenance, and repair of the gas meter 102.
  • this disclosure contemplates use of more than one of encoder device 100 on the gas meter 102.
  • the units 108, 110 may be configured to cooperate to generate data that defines consumption of fuel gas 104. These configurations may embody standalone devices that connect with one another to exchange data or other information. Electronics on the indexing unit 108 may process the digital signal Si. These electronics may reside inside a plastic or composite housing that attaches or secures to parts of the metering unit 110. These parts may be part of a cast or machined body, preferably metal or metal-alloy, which mates with the conduit 106 to receive fuel gas 104. This“meter” body may enclose flow mechanics 112, for example, mechanisms that move in response to flow of fuel gas 104 from inlet to outlet on the meter body. Exemplary mechanisms may embody counter-rotating impellers, diaphragms, or like devices with movement that can coincide with a precise volume of the fuel gas 104; but this disclosure contemplates others as well.
  • the data processing unit 114 may be configured to quantify flow parameters for fuel gas 104. These configurations may employ computing devices that process data to generate values, like volumetric flow, flow rate, velocity, energy, and the like. These processes may also account for (or“correct for”) conditions that prevail at the gas meter 102. These conditions may describe characteristics of fuel gas 104 or the environment, including ambient temperature, absolute pressure, differential pressure, and relative humidity, among others. The processes may use data for these characteristics to ensure accurate and reliable values for billing customers.
  • the interface unit 116 may be configured to generate data for use to determine volumetric flow. These configurations may include a device that can couple with impellers 112. This device may include hardware that“talks” with corresponding hardware that co-rotates with the impellers 112. This feature may leverage non-contact modalities or technology, like magnetics, ultrasonics, or piezoelectrics; however, this disclosure does contemplates technologies not yet developed as well.
  • the metering unit 110 may include one or more magnets that co-rotate with the impellers 112. The rotation may change a magnetic field to simulate corresponding devices of the interface unit 1 16 to generate the signals Di, Pi noted herein.
  • the units 118, 120 may be configured to convert rotation of the impellers 112 into useable form.
  • these configurations may include hardware that leverages the“Wiegand effect” to generate the data signal Di, for example, as output voltage or“pulses” that track with each rotation of magnets that occurs concomitantly with rotation of the impellers 112.
  • the power unit 120 may embody hardware that can generate energy in response to the co-rotating magnets as well.
  • This hardware may embody a device with a thin wire conductor that wraps around a solid or hollow magnetic core, but other configurations may prevail as well.
  • this disclosure contemplates other types of devices known now or hereinafter developed.
  • FIG. 2 depicts a schematic diagram of exemplary topology for the encoder device 100 of FIG. 1.
  • the encoder device 100 may include a power management unit 122 that interposes between the data processing unit 114 and the power unit 120.
  • the power management unit 122 may include a conditioning unit 124 and a storage unit 126.
  • the conditioning unit 124 may include circuitry necessary to format the power signal Si for use on the device. This circuitry may include inverters, converters, rectifiers, amplifiers, and like devices that can operate on the power signal Si to make it more useful or consistent with other parts of the topology, including for use by the storage unit 126.
  • Examples of the storage unit 126 may include devices that retain energy, like a battery. Other devices may include capacitors, particularly those with low leakage voltage and like parameters to retain and distribute power for extended periods of time.
  • FIG. 3 depicts a schematic diagram of exemplary topology for the encoder device of FIG. 1.
  • the data processing unit 114 may including computing components, like a processor 128 that couples with a timing circuit 130 and with memory 132. Data in the form of executable instructions 134 and resident data 136 may reside on memory 132.
  • the components 128, 130, 132 may integrate together as a micro-controller or like integrated processing device with memory and processing functionality.
  • the timing circuit 130 may embody a micro-power chip with an oscillator that counts time as a real-time clock.
  • the chip may couple with its own power supply, often a lithium battery with extensive lifespan (e.g., > 2 years).
  • a counter may couple with the oscillator.
  • the counter processes signals from the oscillator to output time increments, preferably at accuracy that comports with national standard clocks.
  • memory 132 may embody memory devices that are volatile or non-volatile, as desired. Preference may be given to non volatile devices for data that requires long-term retention, particularly during periods of pro-longed power outage or like disturbances.
  • Executable instructions 134 may embody software, firmware, or like computer programs that configure functionality on the processor 128. This functionality may process data from the incoming data signal Di of the sensor unit 118 and from the timing circuit 130. These processes may generate data that defines flow parameters (e.g., flow and volume) for the resource 104 as it transits through the body 106.
  • flow parameters e.g., flow and volume
  • the processes may also transmit the data as the digital signal Si, for example, to the indexing unit 112 for use with a display, or for broadcast to a meter reader device or onto a network that provides the utility with access to the gas meter 102.
  • the utility may use the data to generate bills for customers or to perform diagnostics to check heath and other operating characteristics of the gas meter 102.
  • FIG. 4 depicts a schematic diagram of an example of memory 132 to illustrate different types of resident data 136 on the encoder device 100.
  • This stored data may also include raw data 138 that corresponds with“counts,” for example, pulses the sensor unit 118 generates in response to each rotation of the impellers 112.
  • This count data correlates well with volumetric flow of fuel gas 104, but is generally not“corrected” to account for certain environmental conditions at or near the gas meter 102.
  • the power unit 120 may operate with each rotation of the impellers 112 so that the power signal Si is sufficient to operate computing components 128, 130 at least to write the uncorrected data 136 to the memory 130.
  • This feature retains data in memory 132 that defines customer consumption independent of power available on the gas meter 102. Utilities may recover the uncorrected data 138 to calculate (or estimate) customer use that occurs during power outage or other issues that may frustrate operation of the gas meter 102 to properly generate and deliver data, e.g., via the digital signal Si.
  • the data may embody correction data 140, for example, data that functionality of the processor 128 may use to compensate for low-flow conditions that occur across the metering unit 112.
  • the data may include“logged” data that functionality of the processor 128 actively stores or reads to the memory 132.
  • This logged data may embody measured data 142, typically data that defines values for temperature, pressure, or like variables. These values may originate from sensors on or in proximity to the gas meter 102.
  • the logged data may also include calculated data 144, for example, data that defines values for flow parameters of fuel gas 104.
  • functionality of the processor 128 may also create event data 146 that captures or defines operating conditions on the gas meter 102.
  • the event data 146 may identify issues or problems on the device, effective consumer demand, as well as replacement or maintenance that occurs on the device.
  • Still other data may prove useful to identify the gas meter 102.
  • This data may embody identifying data 148, often values that serve to distinguish the gas meter 102, or its hardware, from others. These values may include serial numbers, model numbers, or software and firmware versions.
  • the values may include cyclic redundancy check (CRC) numbers, check-sum values, hash-sum values, or the like. These values can deter tampering to ensure that the encoder device 100 or gas meter 102 will meet legal and regulatory requirements for purposes of metering fuel gas 104.
  • CRC cyclic redundancy check
  • FIG. 5 depicts a schematic diagram of exemplary structure for the encoder device 100 of FIG. 1.
  • the structure may include an enclosure 150 with a peripheral wall 152, for example, a thin-walled member made of plastic or composite material.
  • This thin-walled member may form an interior cavity 154, preferably sealed to enclose the units 118, 120 inside of the enclosure. This construction may serve to protect the devices and provide adequate structure to secure the enclosure 150 to the gas meter 102.
  • the data processing unit 114 may also reside in the cavity 154. It may benefit the design to include potting material as well to secure the data processing unit 114 and the units 118, 120 to the peripheral wall 152 or other structure in the cavity 154.
  • a data connection 156 may connect with the data processing unit 114.
  • the data connection 156 may embody a cable or wiring harness compatible with signals in digital or analog form, although preference may be given to construction that can transmit power as well.
  • the cable 156 extends away from the thin-walled member to a connector 158.
  • the connector 152 can interface with parts of the indexing unit 112, which can process data or communicate with remote devices.
  • FIG. 6 depicts a perspective view of the encoder device 100 of FIG. 5 resident on an example of structure for the gas meter 102. This structure may include a meter body 160, typically of cast or machined metals.
  • the meter body 160 may form an internal pathway that terminates at openings 162 with flanged ends (e.g., a first flanged end 164 and a second flanged end 166).
  • the ends 164, 166 may couple with complimentary features on a pipe or pipeline to locate the meter body 160 in-line with the conduit 106.
  • the meter body 160 may have covers 168 disposed on opposing sides of the device.
  • the enclosure 152 may mount to one of the covers 168 to communicate with the metering unit 114 found inside the meter body 156.
  • Fasteners like adhesives or potting materials, may provide secure attachment without interfering with operation of the units 118, 120.
  • FIG. 7 shows the perspective view of FIG. 6 with the gas meter 102 in partially- exploded form.
  • the meter device 112 may comprise a mechanical assembly, shown here having a cylinder cover plate 170 that secures to the meter body 160.
  • the cover plate 170 encloses and seals an inner cavity 172 on the meter body 160.
  • the interior cavity 172 houses a pair of impellers 174.
  • the mechanical assembly may embody a gear assembly 176 having a pair of gears 178.
  • the gears 178 may couple with the impellers 174, typically by way of one or more shafts that extend through the cover plate 168 to engage with the impellers 174.
  • a magnetic device 180 may couple to one of the gears 178, shown here as an annular ring.
  • the cover 168 may locate the encoder device 100 in proximity to the magnetic device 180 to stimulate response of the units 118, 120, as well as to provide access to the mechanical assembly.
  • the impellers 174 counter-rotate in response to flow of fuel gas 104. This movement displaces a fixed volume of fuel gas 104 that transits the meter body 160 between flanged ends 164, 166. The rate at which the impellers 174 rotate relates to the rate at which fuel gas 104 flows through the meter body 160.
  • the rate of rotation of the impellers 174 is directly proportional to the flow rate of fuel gas 104 so that with each full revolution of the impellers 174 and, in turn, corresponding impeller shafts, a precise volume of fuel gas 104 moves through the meter body 160.
  • FIG. 8 depicts a perspective view of exemplary structure for the power unit 120 that can work in conjunction with the magnetic device 180 of FIG. 7.
  • This structure may reside in the enclosure 150 along with the Wiegand sensor 118.
  • the power unit 120 may embody a thin-diameter wire 182 forming windings 184 that circumscribe a core 186.
  • the windings 184 may couple with leads 188.
  • the leads 188 may extend to the processing unit 114, the power management unit 122, or the energy storage unit 126.
  • the core 186 may comprise magnetic material, and be solid or hollow.
  • the annular ring 180 have magnetic poles Pi, P2 that are diametrically opposed from one another; but other construction may incorporate additional magnetic poles as well.
  • FIG. 9 depicts a perspective view of exemplary structure for the gas meter 102 of FIGS. 6 and 7.
  • One of the covers 168 may feature a connection 190, possibly flanged or prepared to interface with the indexing unit 112, shown here with an index housing 192 having an end that couples with the connection 190.
  • the index housing 192 may comprise plastics, operating generally as an enclosure to contain and protect electronics to generate data for volumetric flow of fuel gas through the meter body 160.
  • the index housing 192 may support a display 194 and user actionable devices 196, for example, one or more depressable keys an end user uses to interface with interior electronics to change the display 194 or other operative features of the device.
  • the improvements herein outfit flow devices, like gas meters, with hardware to capture and retain redundant data.
  • This hardware uses operative movements on the gas meter to both harvest energy and generate data that relates to volume flow.
  • the energy is useful to power computing components to store this data in memory, preferable non-volatile.
  • This feature creates a retrievable store of raw volume (or flow) data. Utilities can access the raw data to re-create or corroborate customer consumption for periods of operation that occur during power “outage” or disruption on the gas meter.
  • the utility can avoid potential issues with accuracy and reliability at time of billing customers.
  • Topology for circuitry herein may leverage various hardware or electronic components.
  • This hardware may employ substrates, preferably one or more printed circuit boards (PCB) with interconnects of varying designs, although flexible printed circuit boards, flexible circuits, ceramic-based substrates, and silicon-based substrates may also suffice.
  • PCB printed circuit boards
  • a collection of discrete electrical components may be disposed on the substrate, effectively forming circuits or circuitry to process and generate signals and data. Examples of discrete electrical components include transistors, resistors, and capacitors, as well as more complex analog and digital processing components (e.g., processors, storage memory, converters, etc.).
  • processors include microprocessors and other logic devices such as field programmable gate arrays (“FPGAs”) and application specific integrated circuits (“ASICs”).
  • FPGAs field programmable gate arrays
  • ASICs application specific integrated circuits
  • Memory includes volatile and non-volatile memory and can store executable instructions in the form of and/or including software (or firmware) instructions and configuration settings.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)

Abstract

L'invention concerne un dispositif codeur conçu pour être utilisé sur un compteur de gaz. Les configurations de l'invention peuvent générer de l'énergie et des données en même temps qu'un mouvement mécanique en réponse à l'écoulement d'un matériau à travers le compteur. Selon un mode de réalisation, le compteur peut comprendre un corps de compteur possédant des extrémités à bride, le corps de compteur formant une cavité intérieure. Des roues peuvent résider dans la cavité intérieure afin de mesurer un volume précis de gaz combustible à travers le dispositif. Le dispositif codeur peut s'accoupler aux roues, par exemple à l'aide de modalités sans contact, telles que des aimants. Le dispositif codeur peut comprendre un processeur et une mémoire, une unité de capteur et une unité d'alimentation, l'unité de capteur et l'unité d'alimentation étant sensibles à la rotation des roues afin de générer respectivement un signal de données et un signal de puissance, sans contact avec les roues.
EP19867731.2A 2018-09-30 2019-09-30 Maintien de données redondantes sur un compteur de gaz Pending EP3857180A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/147,785 US20190101426A1 (en) 2013-06-14 2018-09-30 Maintaining redundant data on a gas meter
PCT/US2019/053792 WO2020069495A1 (fr) 2018-09-30 2019-09-30 Maintien de données redondantes sur un compteur de gaz

Publications (2)

Publication Number Publication Date
EP3857180A1 true EP3857180A1 (fr) 2021-08-04
EP3857180A4 EP3857180A4 (fr) 2022-06-22

Family

ID=69952231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19867731.2A Pending EP3857180A4 (fr) 2018-09-30 2019-09-30 Maintien de données redondantes sur un compteur de gaz

Country Status (3)

Country Link
EP (1) EP3857180A4 (fr)
CA (1) CA3119097A1 (fr)
WO (1) WO2020069495A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230041634A1 (en) * 2021-08-05 2023-02-09 Itron Global Sarl Cost Effective Pressure Sensors for Gas Meters

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Publication number Priority date Publication date Assignee Title
US6191687B1 (en) * 1998-09-24 2001-02-20 Hid Corporation Wiegand effect energy generator
US6692572B1 (en) * 1999-09-13 2004-02-17 Precision Valve & Automation, Inc. Active compensation metering system
US6612188B2 (en) * 2001-01-03 2003-09-02 Neptune Technology Group Inc. Self-powered fluid meter
DE10259223B3 (de) * 2002-11-20 2004-02-12 Mehnert, Walter, Dr. Positionsdetektor
US8690117B2 (en) * 2006-05-04 2014-04-08 Capstone Metering Llc Water meter
US8639464B2 (en) * 2008-01-18 2014-01-28 Dresser, Inc. Flow meter diagnostic processing
DE102012012874B4 (de) * 2012-06-28 2019-06-19 Sew-Eurodrive Gmbh & Co Kg Anordnung zur Bestimmung einer Umdrehungsanzahl einer drehbar gelagerten Welle und Verfahren zur Bestimmung einer Umdrehungsanzahl einer drehbar gelagerten Welle
US8863252B1 (en) * 2012-07-25 2014-10-14 Sprint Communications Company L.P. Trusted access to third party applications systems and methods
DE102013003190A1 (de) * 2013-02-26 2014-08-28 Hengstler Gmbh Batterieloser Signalgeber mit Wiegand-Sensor für Gas- oder Wasserzähler
US9435676B2 (en) * 2014-08-08 2016-09-06 Romet Limited Counter module adaptor assembly for rotary gas meters

Also Published As

Publication number Publication date
WO2020069495A1 (fr) 2020-04-02
EP3857180A4 (fr) 2022-06-22
CA3119097A1 (fr) 2020-04-02

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