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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
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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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
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.
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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
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.
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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.
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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
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.
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Patent Agency Ranking
公开(公告)号：US10922960B2
公开(公告)日：2021-02-16
申请号：US16803292
申请日：2020-02-27
Applicant: Kamstrup A/S
Inventor： Jeppe Hofni , Jens Pedersen , Tommy Bechsgaard
Abstract: A radio communication device comprising a radio frequency circuit and a microcontroller arranged to control the radio frequency circuit. The radio communication device further comprises: a radio frequency reference connected to the radio frequency circuit and arranged to be the frequency reference of at least the symbol frequency; a MCU and a time frequency reference connected to the microcontroller. The microcontroller is arranged to determine a frequency error of the time frequency reference relative to the radio frequency reference by performing the steps of: transmitting a radio signal, and signal a timing signal on a control interface, comprising information on start of transmission and end of transmission of the radio signal; receive the timing signal from the radio frequency circuit and measure a transmission duration of the radio signal with reference to the MCU frequency reference and calculate a frequency error of the MCU frequency reference relative to the radio frequency reference based on the measured transmission duration of the radio signal and the number of symbols and the symbol frequency. Further, the microcontroller measures a time period of the time frequency reference with reference to the MCU frequency reference; and calculate the frequency error of the time frequency reference relative to the radio frequency reference.
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公开(公告)号：US10429261B2
公开(公告)日：2019-10-01
申请号：US15323626
申请日：2015-07-03
Applicant: Kamstrup A/S
Inventor： Anders Skallebæk , Jens Lykke Sørensen , Kristian Rokkjær
Abstract: The invention provides a pressure sensor device arranged for measuring a pressure in a fluid pipe system, e.g. a utility network. A measurement system with a pressure sensor serves to measure pressure in the fluid pipe system, and a data processing unit determines at least one statistical parameter in response to a plurality of pressure measurements. Data packets with the statistical parameter is then transmitted by means of a communication module, e.g. via a data network which serves for remote reading of utility meters. The statistical parameter is selected from the second, third and fourth statistical moments of the pressures measured with the plurality of measurements of pressure. The pressure sensor device in a battery driven form can be placed at remote locations in a fluid pipe system to monitor pressure transients, e.g. in a water distribution system. Especially, a time stamp may follow the statistical parameter(s) sent, such that it is possible to track pressure transient creating events on the fluid pipe system.
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公开(公告)号：US09952062B2
公开(公告)日：2018-04-24
申请号：US15306290
申请日：2015-04-27
Applicant: Kamstrup A/S
Inventor： Peter Schmidt Laursen , Claus Jørgensen , Lasse Pilegaard
CPC classification number: G01D4/002 , H01Q1/2233 , H04Q9/00 , H04Q2209/40 , H04Q2209/60 , Y02B90/241 , Y04S20/32
Abstract: A consumption meter for measuring consumption data of a supplied utility is provided, the consumption meter comprising: a housing with an opening, where the housing forms a closed compartment when the opening of the housing is closed with a cover; a communication module provided in the closed compartment; a front plate provided in the closed department and arranged adjacent to the cover, wherein the front plate has a first front plate surface facing the cover, and a second front plate surface facing opposite; and an antenna comprising an antenna body with an antenna conductive element, which is connected to the communication module; wherein the front plate has an indentation arranged between the first and the second front plate surfaces, and wherein the antenna body is arranged in the indentation. The consumption meter provides an antenna with a high transmission performance. Further, the antenna is mechanically supported, and is arranged inside the closed compartment, eliminating the need of any feedthrough across the housing wall.
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公开(公告)号：US09658090B2
公开(公告)日：2017-05-23
申请号：US14789604
申请日：2015-07-01
Applicant: Kamstrup A/S
Inventor： Søren Tønnes Nielsen
Abstract: An ultrasound flow meter unit, e.g., a unit forming part of a flow meter for ultrasonic measurement of a fluid flow. The unit comprises two ultrasound transducers 206, a circuit board 202 with an electronic circuit 204 arranged for operating the ultrasound transducers 206, and a common protection membrane 132, such as a sheet of metal, for protecting the transducers 206. The common protection membrane 132 forms part of a water-tight casing, such as an IP68 class casing. The two ultrasound transducers 206 and the circuit board 202 with the electronic circuit 204 are positioned within the water-tight casing and thus protected against damaging humidity. A glass sealed feed-through 128 can be used to provide external electrical contact to the electronic circuit 204, i.e. for outputting an electric flow rate signal. Such flow meter unit is highly versatile within many applications since it provides a compact and robust unit. The unit can be used with or integrated in many types of devices, e.g. flow meters, such as used in consumption meters for charging purposes or in many other industrial or home applications.
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公开(公告)号：US20170052037A1
公开(公告)日：2017-02-23
申请号：US15306290
申请日：2015-04-27
Applicant: Kamstrup A/S
Inventor： Peter Schmidt LAURSEN , Claus JØRGENSEN , Lasse PILEGAARD
CPC classification number: G01D4/002 , H01Q1/2233 , H04Q9/00 , H04Q2209/40 , H04Q2209/60 , Y02B90/241 , Y04S20/32
Abstract: A consumption meter 100 for measuring consumption data of a supplied utility is provided, the consumption meter comprising: a housing 110 with an opening 112, where the housing 110 forms a closed compartment when the opening 112 of the housing 110 is closed with a cover 120; a communication module 130 provided in the closed compartment; a front plate 140 provided in the closed department and arranged adjacent to the cover 120, wherein the front plate 140 has a first front plate surface 142 facing the cover 120, and a second front plate surface 144 facing opposite; and an antenna comprising an antenna body 150 with an antenna conductive element 154, which is connected to the communication module 130; wherein the front plate 140 has an indentation 146 arranged between the first and the second front plate surfaces 142, 144, and wherein the antenna body 150 is arranged in the indentation 146. The consumption meter 100 provides an antenna with a high transmission performance. Further, the antenna is mechanically supported, and is arranged inside the closed compartment, eliminating the need of any feedthrough across the housing wall.
Abstract translation: 提供了一种用于测量所提供的公用事业的消耗数据的消耗计100，消耗计包括：具有开口112的壳体110，当外壳110的开口112用盖120封闭时，壳体110形成封闭的隔室 ; 设置在所述封闭隔室中的通信模块130; 设置在封闭部分中并邻近盖120布置的前板140，其中前板140具有面向盖120的第一前板表面142和面对相反的第二前板表面144; 以及天线，其包括天线主体150，天线主体150与天线导电元件154连接，所述天线导体元件154连接到通信模块130; 其中前板140具有布置在第一和第二前板表面142,144之间的凹口146，并且其中天线体150布置在凹口146中。消耗计100提供具有高传输性能的天线。 此外，天线被机械地支撑，并且被布置在封闭隔间内，消除了穿过壳体壁的任何馈通的需要。
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