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公开(公告)号：US12235241B2
公开(公告)日：2025-02-25
申请号：US18509492
申请日：2023-11-15
Applicant: Kamstrup A/S
Inventor： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørensen , René Gajda Kristensen , Martin Christian Høj Petersen
IPC: G01N29/032 , G01D4/00 , G01F1/66 , G01M3/24 , G01M3/28
Abstract: A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc. Such consumer noise level measurement at the consumer site allows collection of noise level data to assist in locating fluid leakages in a fluid supply pipe system.
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公开(公告)号：US12055426B2
公开(公告)日：2024-08-06
申请号：US17607453
申请日：2020-05-01
Applicant: Kamstrup A/S
Inventor： Peter Schmidt Laursen , Mads Andersen
Abstract: An ultrasonic flow meter, comprising a flow tube with a through-going opening for passage of a fluid between an inlet and an outlet, comprising: a flow pipe of a first material, such as metal, extending between the inlet and the outlet, a liner of a second material, such as a polymer-based material, extending along an inner surface of the flow pipe between the inlet and the outlet, a housing providing a compartment for transducers and metering electronics wherein the housing is connected to the liner, by being mounted on an interface being an integrated part of the liner.
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公开(公告)号：US20240219257A1
公开(公告)日：2024-07-04
申请号：US18563411
申请日：2022-05-25
Applicant: Kamstrup A/S
Inventor： Sune Hoveroust DUPONT
Abstract: Fluid consumption meter comprising a noise detection module for leak detection measurements and a control device comprising a bi-directional communication unit. The control comprises a time synchronization module for time synchronization of leak detection measurements with an external device via the bi-directional communication unit with a time synchronization error of less than 1000 micro seconds. The control device is arranged to receive a leak detection control signal from an external device and to start the leak detection measurements at a point in time specified the received leak detection control signal.
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公开(公告)号：US12007261B2
公开(公告)日：2024-06-11
申请号：US18174811
申请日：2023-02-27
Applicant: Kamstrup A/S
Inventor： Lasse Pilegaard , Anders Hedegaard , Kaspar Raahede Aarøe
Abstract: A compact ultrasonic flowmeter for measuring flowrate and other fluid related data includes a flow tube with a flow bore for passage of the fluid between an inlet and an outlet, a flowmeter housing associated with the flow tube, a printed circuit board arranged in the flowmeter housing and including a processor for controlling operations of the flowmeter, a meter circuit including ultrasonic transducers provided on the printed circuit board and configured for operating the ultrasonic transducers to transmit and receive ultrasonic wave packets through the fluid, a display mounted on the printed circuit board and configured for displaying a measured flowrate and the other fluid related data, one or more battery packs for powering flowmeter operations, and an antenna element configured to be connected to a radio circuit via connectors provided on the printed circuit board and/or the antenna element.
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公开(公告)号：US11979346B2
公开(公告)日：2024-05-07
申请号：US17557903
申请日：2021-12-21
Applicant: Kamstrup A/S
Inventor： Flemming Hald , Jeppe Hofni , Mathias Rønholt Kielgast , Torben Markussen
IPC: H04L5/00 , H04W72/0446 , H04W72/21
CPC classification number: H04L5/0046 , H04L5/0053 , H04W72/0446 , H04W72/21
Abstract: A wireless communication link management method includes sending data in a primary uplink data frame from the measuring device (7) to the data collection unit (5) via a primary channel. After sending, the measuring device provides a time-limited primary access opportunity (AO) for receiving a link management downlink frame. A primary signal quality is evaluated. A secondary uplink frame is sent from the measuring device via a secondary channel. A time-limited secondary access opportunity for receiving a link management downlink frame is provided. Secondary signal qualities are evaluated. One among the primary access opportunity and the secondary access opportunities is selected for sending a link management downlink frame from the data collection unit to the measuring device depending on the signal qualities. The associated channel is used as the primary channel for sending data in a primary uplink data frame from the measuring device to the data collection unit.
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Patent Agency Ranking
公开(公告)号：US20240133726A1
公开(公告)日：2024-04-25
申请号：US18493218
申请日：2023-10-23
Applicant: Kamstrup A/S
Inventor： Lotte Holmegaard , Sune Hoveroust Dupont , Mads Raunbak , Morten Ørris Poulsen , Morten Rasmussen
IPC: G01F15/10
CPC classification number: G01F15/10
Abstract: The present invention provides a method for preventing frost damage to one or more flow meters installed in a fluid distribution network containing a fluid, wherein each flow meter is configured to measure a temperature, preferably an air temperature, and to wirelessly transmit the measured temperature, such as via a mobile or a fixed wireless reading system to a processing unit. The method comprises: 1) during a period continuously monitoring (M_TMP) the temperatures measured by the plurality of flow meters over a period of time, 2) performing a data analysis (P_DA) on the temperatures of the plurality of flow meters from the period, 3) based on the data analysis, identifying (I_FDC) one or more ones of the plurality of flow meters as frost damage candidates in a future frost period, and 4) transmitting (T_WS) a warning signal indicative of the frost damage candidates or initiating frost protection measures to protect the frost damage candidates. It has been found that it is possible to monitor temperatures in a no-frost period to identify a frost damage candidate, e.g. if a flow meter is positioned in a pit and the lid is removed thereby causing the risk of a frost damage of the flow meter.
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公开(公告)号：US20240068855A1
公开(公告)日：2024-02-29
申请号：US18454123
申请日：2023-08-23
Applicant: Kamstrup A/S
Inventor： Peter Schmidt LAURSEN , Lasse PILEGAARD
CPC classification number: G01F15/068 , G01F15/14 , G01F15/185
Abstract: A flow meter (1) includes a flow tube (3) and sensors (19a, 19b), that generate signals for measuring a fluid flow through the flow tube. An electronics housing (5) accommodates a battery (23) and a printed circuit board, PCB (15). The PCB is equipped with electronics. A pair of elongate connector elements (29) electrically connect axial end contacts (27) of the battery with the PCB for powering the electronics and/or sensors by the battery. The battery is arranged at a distance (D3) to the PCB. The pair of elongate connector elements includes a first end section (31), connected to the PCB, a contact section (33), connected to one of the end contacts of the battery, and a second end section (35). The electronics housing includes inward protrusions. The second end sections of the pair of elongate connector elements abut axially against the inward protrusions to fix the battery axially.
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公开(公告)号：US11852609B2
公开(公告)日：2023-12-26
申请号：US17029153
申请日：2020-09-23
Applicant: Kamstrup A/S
Inventor： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørensen , René Gajda Kristensen , Martin Christian Høj Petersen
IPC: G01N29/032 , G01D4/00 , G01M3/24 , G01F1/66 , G01M3/28
CPC classification number: G01N29/032 , G01D4/00 , G01D4/002 , G01D4/004 , G01F1/666 , G01M3/243 , G01M3/2815 , G01N2291/015 , G01N2291/02408 , G01N2291/02416 , G01N2291/044 , Y02B90/20 , Y04S20/30
Abstract: A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc. Such consumer noise level measurement at the consumer site allows collection of noise level data to assist in locating fluid leakages in a fluid supply pipe system.
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公开(公告)号：US11817990B2
公开(公告)日：2023-11-14
申请号：US17613991
申请日：2020-05-27
Applicant: Kamstrup A/S
Inventor： Alex Birklykke , Mathias Rønholt Kielgast
CPC classification number: H04L27/2656 , H04L7/0079
Abstract: A method for detecting a constant envelope burst-mode radio frequency (RF) signal with a known periodic synchronization sequence (PSS) represented therein includes transforming an incoming RF signal into a digital baseband signal (DBS), and processing the phase domain part by: 1) applying a correlation algorithm to correlate the DBS with a synchronization pattern corresponding to the PSS, 2) filtering the resulting correlation signal for removing at least a DC component of the correlation signal, 3) down-sampling the filtered correlation signal with a sampling time controlled by a clock aligned with amplitude peaks in the filtered correlation signal, 4) performing a decision algorithm on the down-sampled signal to determine if PSS is present in the incoming RF signal, then 5) generating an output signal indicating if the known PSS is present in the incoming RF signal, in response to a result of the decision algorithm.
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60.发明授权公开(公告)号：US11703367B2
公开(公告)日：2023-07-18
申请号：US17257605
申请日：2019-07-03
Applicant: Kamstrup A/S
Inventor： Lasse Pilegaard , Kaspar Raahede Aarøe , Kenneth Hoe Baunsgaard
IPC: G01F1/66 , G01F15/063
CPC classification number: G01F1/662 , G01F15/063
Abstract: A modular ultrasonic flow meter including a substantially watertight meter housing connected to a flow tube; a measurement printed circuit board including a measurement circuit communicating with one or more ultrasonic transducers, arranged in the meter housing for transmitting and receiving ultrasonic signals; and a self-contained power supply. The ultrasonic flow meter further includes a control module comprising a module housing connected with a main printed circuit board including a central processing unit, a memory circuit and a communication circuit, and a power- and communication connection is provided between the main printed circuit board of the control module and the measurement printed circuit board whereby the self-contained power supply may power the main printed circuit board and the measurement printed circuit board.
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