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公开(公告)号：US12041566B2
公开(公告)日：2024-07-16
申请号：US17543641
申请日：2021-12-06
Applicant: Kamstrup A/S
Inventor： Jonas Drammestrup Poulsen , Kristian Stobbe
IPC: H04W24/10 , H04J3/06 , H04L43/0864 , H04W56/00 , H04W84/12
CPC classification number: H04W56/0015 , H04J3/0638 , H04L43/0864 , H04W24/10 , H04W84/12
Abstract: A stationary measuring device (7) measures or detects a value at a utility installation. The measuring device includes a low power wide area network (LPWAN) communication module configured to establish a wireless communication connection to a LPWAN for communicating data to a head-end-system (HES) (3) via the LPWAN. The LPWAN communication module is configured to: send a request for a first clock time from the measuring device to a time server; receive the first clock time from the time server in response to the request; receive a second clock time from a base station of the LPWAN; compare the first clock time and the second clock time with each other; and determine a current clock time based on the second clock time if the second clock time lies within a pre-determined range about the first clock time.
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公开(公告)号：US20220214202A1
公开(公告)日：2022-07-07
申请号：US17607453
申请日：2020-05-01
Applicant: Kamstrup A/S
Inventor： Peter Schmidt LAURSEN , Mads ANDERSEN
Abstract: Flow meter for 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：US20220206173A1
公开(公告)日：2022-06-30
申请号：US17558029
申请日：2021-12-21
Applicant: Kamstrup A/S
Inventor： Maria del Carmen Santa-Cruz ROLDAN
Abstract: A method detects seismic events, in particular detects foreshocks for earthquake prediction. The events are detected by a plurality of sensors, wherein at least a part of a water pipe network on which the sensors are arranged is used for detection. An ultrasonic water meter to be connected to a water pipe network and an ultrasonic water meter system connected to a water pipe network are provided to detect seismic events.
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公开(公告)号：US20220182955A1
公开(公告)日：2022-06-09
申请号：US17543641
申请日：2021-12-06
Applicant: Kamstrup A/S
Inventor： Jonas Drammestrup POULSEN , Kristian STOBBE
IPC: H04W56/00 , H04J3/06 , H04L43/0864 , H04W24/10
Abstract: A stationary measuring device (7) measures or detects a value at a utility installation. The measuring device includes a low power wide area network (LPWAN) communication module configured to establish a wireless communication connection to a LPWAN for communicating data to a head-end-system (HES) (3) via the LPWAN. The LPWAN communication module is configured to: send a request for a first clock time from the measuring device to a time server; receive the first clock time from the time server in response to the request; receive a second clock time from a base station of the LPWAN; compare the first clock time and the second clock time with each other; and determine a current clock time based on the second clock time if the second clock time lies within a pre-determined range about the first clock time.
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公开(公告)号：US20220182924A1
公开(公告)日：2022-06-09
申请号：US17540032
申请日：2021-12-01
Applicant: Kamstrup A/S
Inventor： Anders Koed KJÆR , Shekib HABBASSY , Jens HØRDUM
Abstract: A battery-powered stationary measuring device (7), 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) (3) and attempt to successfully establish a connection (9) to the LPWAN by selectively conducting one of the group comprising: an extended LPWAN search (225) and a limited LPWAN search (207); 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 (219) 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 (227) with each conducted extended LPWAN search.
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Patent Agency Ranking
公开(公告)号：US10992417B2
公开(公告)日：2021-04-27
申请号：US16312796
申请日：2017-06-29
Applicant: Kamstrup A/S
Inventor： Flemming Hald , Johnny Dørken Christiansen
Abstract: Radio frequency communication method for wirelessly transmitting data packets between two communication nodes of a communication network, the method comprising the steps of generating a data packet including payload data and a first data check value a, transmitting the data packet from the first node to a second node; and determine whether the data packet is transmitted correctly by calculating a second data check value based on the received payload data and comparing the second data check value to the first data check value to; if the data packet is received correctly, transmitting from the second node to the first node an acknowledgement packet including a first acknowledgement check value wherein the first acknowledgement check value provides stronger assurances about data integrity of the received payload data than the first and second data check values; and at the first node, calculating a second acknowledgement check value based on the original payload data, and determining whether the data received at the second node matched the data originally sent from the first node.
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公开(公告)号：US10921288B2
公开(公告)日：2021-02-16
申请号：US15741567
申请日：2016-07-04
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
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：US10379084B2
公开(公告)日：2019-08-13
申请号：US15741560
申请日：2016-07-01
Applicant: Kamstrup A/S
Inventor： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørensen , Sune Hoveroust Dupont
IPC: G01N29/032 , G01D4/00 , G01M3/24 , G01F1/66 , G01M3/28
Abstract: A turbidity measurement device for measuring turbidity of a fluid flowing in a flow tube. A first transducer transmits ultrasonic signals through the fluid in the turbidity measurement section so as to provide a first ultrasonic standing wave between the first and second section ends. A receiver transducer receives the ultrasonic scattered response from particles in the fluid flowing through the turbidity measurement section. A control circuit operates the transducers and generates a signal indicative of the turbidity of the fluid in response to signals received from the receiver transducer. Preferably, the device may comprise a second transducer for generating a second ultrasonic standing wave with the same frequency, and further the two transducers may be used to generate a measure of flow rate by means of known ultrasonic techniques. This flow rate may be used in the calculation of a measure of turbidity. Both turbidity facilities and flow rate facilities may be integrated in a consumption meter, such as a heat meter or a water meter.
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公开(公告)号：US09970799B2
公开(公告)日：2018-05-15
申请号：US15320671
申请日：2015-06-19
Applicant: Kamstrup A/S
Inventor： Søren Tønnes Nielsen , Peter Schmidt Laursen , Jens Lykke Sørennsen
Abstract: A system of a plurality of ultrasonic consumption meters 100 each arranged in a utility network 1 for measuring consumption data of a utility in terms of a supplied fluid, the utility network 1 further comprising a data collector 2 for collecting the consumption data is provided, wherein: Each of the ultrasonic consumption meters 100 are arranged to measure a flow rate of the supplied fluid and a pressure of the supplied fluid, the consumption meters 100 comprising: A flow tube 110 with a through-going opening 112 for passage of a fluid between an inlet and an outlet, the flow tube having a wall with an outer surface 114; two ultrasonic transducers 120, 122 arranged at the outer surface 114 of the flow tube 110, so that ultrasonic signals are transmitted through the wall; a control circuit 30 arranged for operating the two ultrasonic transducers 120, 122 and to generate a signal indicative of the flow rate of the fluid; and a communication module 140 connected to the control circuit 130 and arranged for communicating the signal indicative of the flow rate of the fluid to the data collector 2; wherein the control circuit 130 is arranged for operating a first strain gauge 150 arranged at the outer surface 114 of the flow tube 110 to generate a signal indicative of the pressure of the fluid, and 1 wherein the communication module 140 is arranged for communicating the signal indicative of the pressure of the fluid to the data collector 2. The consumption meters 100 of the system are capable of obtaining and communicating data relating to flow and pressure in a utility network to an operator of the network for proper operation of the network.
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公开(公告)号：US09912441B2
公开(公告)日：2018-03-06
申请号：US15037519
申请日：2014-11-21
Applicant: Kamstrup A/S
Inventor： Flemming Hald , Rene Rørbye Pedersen , Johnny Dørken Christiansen , Rasmus Melchior Jacobsen
CPC classification number: H04L1/0041 , G06Q50/06 , G08C17/02 , H04L1/0002 , H04L1/0033 , H04L1/0045 , H04L1/0057 , H04L1/0084 , H04Q9/00 , H04Q2209/50 , H04Q2209/60
Abstract: The present invention relates to a device and a system for transmitting data messages which can be received by different types of receivers. A device and system are disclosed where data transmissions are based on data messages (2) comprising two parts, a first part (20) being encoded in accordance with a communication protocol, such as the wireless MBus protocol, and a second part (21) which comprises error-correcting information for enabling a receiver device to correct errors in the data message (2), such as parity information related to turbo coding. The first part (20) forms an independent sub data message which can be received independently of the content of the second part (21). The sub data message can be received as is within a first communication range (6), and the entire data message can by virtue of the error correction information, and subsequent error correction, be received within a second longer communication range (7).
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