公开(公告)号：US20240201278A1

公开(公告)日：2024-06-20

申请号：US18524119

申请日：2023-11-30

Applicant: Kamstrup A/S

Inventor： Mads Erik Lund JENSEN ,  Juha-Matti SAVOLAINEN

IPC: G01R31/392 ,  G01R31/3842 ,  H02J7/00

CPC classification number: G01R31/392 ,  G01R31/3842 ,  H02J7/0047

Abstract: A consumption meter includes a battery for energy supply and an accumulation module. The accumulation module is configured for accumulating a first quantity over a time period to obtain a first accumulated quantity. The first quantity is based on a product of at least a current drawn from the battery and a duration over which the current was drawn from the battery. The accumulation module is further configured for transmitting the first accumulated quantity at regular or irregular intervals to a battery lifetime estimation module for calculating a remaining battery lifetime on basis of a nominal battery capacity, the received first accumulated quantity and an operating time of the battery. A consumption meter system includes the consumption meter and a battery lifetime estimation module.

公开(公告)号：US11991622B2

公开(公告)日：2024-05-21

申请号：US17540032

申请日：2021-12-01

Applicant: Kamstrup A/S

Inventor： Anders Koed Kjær ,  Shekib Habbassy ,  Jens Hørdum

IPC: H04W48/16 ,  H04W52/02 ,  H04W76/18

CPC classification number: H04W48/16 ,  H04W52/0229 ,  H04W76/18

Abstract: A battery-powered stationary measuring device, measuring or detecting a utility installation value, includes a Low Power Wide Area Network (LPWAN) connection module configured to establish a wireless communication connection to a LPWAN for communicating data to a head-end-system (HES) and attempt to successfully establish a connection to the LPWAN by selectively conducting one of the group comprising: an extended LPWAN search and a limited LPWAN search; veto the extended LPWAN search as long as a savings threshold for a total number or amount of power budget savings has not been reached; increase the total of power budget savings for unsuccessful limited LPWAN searches; and allow the extended LPWAN search if the total number or amount of power budget savings has reached the savings threshold. The total number or total amount of power budget savings is reduced with each conducted extended LPWAN search.

公开(公告)号：US20230204399A1

公开(公告)日：2023-06-29

申请号：US18146498

申请日：2022-12-27

Applicant: Kamstrup A/S

Inventor： Bjarke Brogaard PAULI ,  Daniel Rømer BECK

IPC: G01F1/84

CPC classification number: G01F1/8436 ,  G01F1/8431

Abstract: A flow meter including a flow tube element with sensors configured to generate signals for measuring a fluid flow through the flow tube element. An electronics housing with a mounting side is releasably mounted to the flow tube element. The electronics housing accommodates a battery and electronics. The electronics and the sensors are powered by the battery, located in a battery cartridge that is arranged within the electronics housing and is removable through the mounting side with the housing unmounted from the flow tube element. A first anti-tampering element is arranged between a first part of the electronics and the battery cartridge. A second anti-tampering element is mounted to the flow tube element independently from the electronics housing. The second anti-tampering element and a second part of the electronics remain mounted to the flow tube element with the electronics housing unmounted from the flow tube element.

公开(公告)号：US11629977B2

公开(公告)日：2023-04-18

申请号：US16502792

申请日：2019-07-03

Applicant: Kamstrup A/S

Inventor： Daniel Beck Rømer

IPC: G05D7/06 ,  G01F22/00 ,  G06Q50/06 ,  G01D4/00 ,  G01F15/00

Abstract: A water utility meter configured for dynamic throttling and arranged to register and manage the amount of water delivered to a consumption site from a distribution network is disclosed. The water utility meter comprises a flow sensor for measuring a flow rate through the water utility meter, a valve for limiting the flow rate from the distribution network to the consumption site, an actuator for changing a valve position so that the valve may be in an open position or a closed position or a variable throttling position and a controller unit arranged to control the actuator. The controller unit is further configured to monitor the flow rate using the flow sensor, to verify if the flow rate exceeds a maximum flow rate limit or does not exceed a minimum flow rate limit and if the limits are exceeded adjust the valve position to change the maximum flowrate.

公开(公告)号：US11619529B2

公开(公告)日：2023-04-04

申请号：US17375471

申请日：2021-07-14

Applicant: Kamstrup A/S

Inventor： Lasse Pilegaard ,  Anders Hedegaard ,  Kaspar Raahede Aarøe

IPC: G01F1/667 ,  G01F1/66

Abstract: A compact ultrasonic flowmeter for measuring flowrate and other fluid related data of a fluid includes a flow tube with a flow bore for passage of the fluid between an inlet and an outlet, a flowmeter housing, 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 two or more backing devices arranged to provide a holding force to the ultrasonic transducers, forcing a lower side of the ultrasonic transducers against transducer areas provided on the flow tube.

公开(公告)号：US20220200749A1

公开(公告)日：2022-06-23

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 ,  H04W72/04

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.

公开(公告)号：US11323783B2

公开(公告)日：2022-05-03

申请号：US16474623

申请日：2017-12-22

Applicant: Kamstrup A/S

Inventor： Johnny Dørken Christiansen ,  Flemming Hald

IPC: H04L1/00 ,  H04L1/18 ,  H04W52/04 ,  H04Q9/00

Abstract: A consumption meter (M1) arranged to determine a consumed quantity of a utility at the consumer site. The meter (M1) has a communication unit with a transmitter and a receiver arranged for communication via a network, preferably an RF network. The meter can autonomously transmit data frames (DF) in accordance with a set of transmission parameters, e.g. data frames with data indicative of a consumed quantity. The meter can receive, within a limited time window (TW) following transmission of said data frame (DF), an acknowledgement frame comprising link data indicative of receipt of said data frame by an associated collector which has received the data frame (DF). Finally, the meter can adjust the set of transmission parameters for transmission of a subsequent data frame (DF) in response to said link data.

公开(公告)号：US20210148742A1

公开(公告)日：2021-05-20

申请号：US16952175

申请日：2020-11-19

Applicant: Kamstrup A/S

Inventor： Søren Tønnes Nielsen ,  Peter Schmidt Laursen ,  Kaspar Raahede Aarøe

IPC: G01F1/66 ,  G01F15/06

Abstract: A consumption meter arranged to measure a flow rate of a fluid, comprising: a tube with for passage of the fluid between an inlet and an outlet, multiple individual flow meters arranged at the tube to measure a sub-flow rate of the fluid, a first control circuit and communication interface arranged for receiving the measured sub-flow rate from each of the multiple flow meters, and being arranged to generate a signal indicative of the flow rate of the fluid according to the received sub-flow rates, each of the multiple individual flow meters comprising: a flow meter housing arranged at the tube; first and second ultrasonic transducers arranged in the flow meter housing for transmitting and receiving ultrasonic signals propagating through the fluid; a second control circuit arranged for operating the first and second ultrasonic transducers, and being arranged to generate the signal indicative of the sub-flow rate of the fluid accordingly; and a communication interface arranged for transmitting the signal indicative of the sub-flow rate to the first control circuit.

公开(公告)号：US20210148741A1

公开(公告)日：2021-05-20

申请号：US16952152

申请日：2020-11-19

Applicant: Kamstrup A/S

Inventor： Søren Tønnes Nielsen ,  Peter Nordlund Borring ,  Peter Schmidt Laursen

IPC: G01F1/66

Abstract: A consumption meter arranged to measure a flow rate of a fluid, the consumption meter comprising: a tube with two transducer holes in a wall of the tube; a meter housing arranged at the tube, comprising two transducer housings and a main housing; first and second ultrasonic transducers arranged in the transducer housings and arranged for transmitting and receiving ultrasonic signals propagating through the fluid; a control circuit arranged in the meter housing for operating the first and second ultrasonic transducers, and being arranged to generate a signal according to the flow rate of the fluid. wherein the transducer housing comprises: an internal transducer housing element arranged at an inner surface of the tube and an external transducer housing element arranged at an outer surface of the tube. The internal transducer housing element and/or the external transducer housing element are arranged to extent through the transducer hole in the wall of the tube and to engage. Whereby the transducer housing is fixated to the tube. The main housing is arranged to engage with the transducer housing to constitute a closed meter housing.

公开(公告)号：US20210148729A1

公开(公告)日：2021-05-20

申请号：US17157015

申请日：2021-01-25

Applicant: Kamstrup A/S

Inventor： Flemming Hald ,  Johnny Dørken Christiansen ,  Karsten Kobæk Bidstrup

IPC: G01D4/00 ,  E03B7/07 ,  G06Q50/06 ,  H04W74/08

Abstract: A smart metering device being part of an advanced metering infrastructure is provided. The smart metering device might comprise one or more sub devices such as: metering devices, actuator devices, sensor devices etc. The smart metering device includes a valve arranged to limit the delivery of a utility to the consumer. Moreover the smart metering devices includes a communication device including a transmitter and a receiver for wireless communication with a collector, utilizing a listen after talk mechanism to perform a two-way communication to the head end system through a collector. The presented invention is especially beneficial for battery supplied smart metering devices. The advanced metering infrastructure will provide a given service level for communication between the meter and the head end system. The service level will be changed dynamically in order to meet the adequate service level at all times.