15results about "Measurement arrangements for variable" patented technology

A system (100) for identifying electrical load types for a variety of different electrical loads (102, 103, 104), wherein the system comprises: a hierarchical load attribute database (108) comprising a plurality of layers (110), wherein a (112) of the layers contains a plurality of different load categories, wherein a first layer (112, L1) of the plurality of layers contains the different load categories; wherein a second layer (L2) of the plurality of layers contains a plurality of different load subcategories for each of the different load categories; and wherein a third layer (L3) of the plurality of layers contains the different electrical load types for the different load subcategories; and a processor (114) which is constructed (116) to: Acquiring a voltage waveform and a current waveform for a corresponding one of the different electrical loads; Mapping a voltage-current trajectory onto a grid containing a plurality of cells, each of which has a binary value of zero or One is assigned based on whether the voltage-current trajectory passes through each of the cells; Extracting a variety of different properties from the depicted grid of cells as a graphical signature of the corresponding one of the different electrical loads; Deriving a category of the corresponding one of the different electrical loads from the hierarchical load attribute database; and Identifying one of a variety of different electrical load types for the corresponding one of the different electrical loads, where the voltage waveform and the current waveform each represent a total number of K data points of the form (v k , i k ) contained, where: k = 1,...,K; where v k and i k correspondingly, a voltage and a current value of a sampled data point k; where maximum and minimum values ​​of the voltage waveform and the current waveform are calculated from: v max = max v k , V min = min v k , i max = max i k , i min = min i k , v 0 = 1 2 ( v max + v min ) , and i 0 = 1 2 ( i max + i min ) ; where v0 and i0 are both averages of the corresponding maximum and minimum values ​​that form the central points of the grid of cells, where Δ defines a size of the grid; where dv = v max − v 0 Δ di = i max − i 0 Δ ; the processor is further configured to generate two sequences from the voltage waveform and the current waveform as: { v 0 − dv ⋅ Δ , v 0 − dv ⋅ ( Δ − 1 ) , … , v 0 , … , v 0 + dv ⋅ ( Δ − 1 ) , v 0 + dv ⋅ Δ} and { i 0 − di ⋅ Δ , i 0 − di ⋅ ( Δ − 1 ) , … , i 0 , … , i 0 + di ⋅ ( Δ − 1 ) , i 0 + di ⋅ Δ} where each of the two sequences has N = 2Δ+1 elements; where the grid of cells includes a first axis having N cells and a second axis having N cells; and where each of the cells has a position value (v0 + dv · x,i0 + di · y) and a binary model value B x,y is assigned, which is initialized to 0.

A liquid level sensor can include a circuit board and a thermistor bridge supported by the circuit board comprising a first pair of thermistors and a second pair of thermistors. A heat sink can be coupled to the circuit board proximate the first pair of thermistors and not the second pair of thermistors. A power supply can be configured to provide pulses of electrical current through the thermistor bridge. A controller in communication with the thermistor bridge can be configured to receive a measurement signal from the thermistor bridge output a low product indication when the measurement signal satisfies a predetermined condition.

Detection device comprising: several sensors (210) designed to detect a value to be detected, and a processing section (110) designed to process a detection signal output by each of the multiple sensors (210), wherein the multiple sensors (210) include a first sensor (211), a second sensor (212), a third sensor (213) and a fourth sensor (214), the periodicity with which the first sensor (211) and the second sensor (212) output detection signals is shorter than the periodicity with which the third sensor (213) and the fourth sensor (214) output detection signals, the processing section (110) comprises: a diagnostic section (140) designed to diagnose a fault in the first sensor (211), the second sensor (212), the third sensor (213) and the fourth sensor (214), and a switching section (160) designed to switch between the use of a first signal (TS1) and the use of a third signal (TS3) as a torque signal, wherein the first signal (TS1) is a detection signal output by the first sensor (211) and the third signal (TS3) is a detection signal output by the third sensor (213), the diagnostic section (140) is designed to use the first signal (TS1) and a second signal (TS2), wherein the second signal (TS2) is a detection signal output by the second sensor (212) to diagnose whether the first sensor (211) and the second sensor (212) are normal or whether the first sensor (211) or the second sensor (212) has a fault, the diagnostic section (140) is designed to use the third signal (TS3) and a fourth signal (TS4), wherein the fourth signal (TS4) is a detection signal output by the fourth sensor (214) to diagnose whether the third sensor (213) and the fourth sensor (214) are normal or whether the third sensor (213) or the fourth sensor (214) has a fault, responding to the fact that the diagnostic section (140) diagnoses that neither the first sensor (211) nor the second sensor (212) has a fault, the switching section (160) is designed to output the first signal (TS1) as a torque signal, and Responding to the fact that the diagnostic section (140) diagnoses that the first sensor (211) or the second sensor (212) has a fault and diagnoses that neither the third sensor (213) nor the fourth sensor (214) has a fault, the switching section (160) is designed to output the third signal (TS3) as a torque signal.

Systems and methods for an optimized multipath loop system for detecting condition changes are provided. An example includes a system comprising a multipath loop component, wherein the multipath loop component includes a plurality of nested discontinuous conductive paths forming a parallel circuit component, and a logic circuit operationally coupled to the multipath loop component. The logic circuit can be configured to detect whether a continuous circuit path has been formed through at least one of the plurality of nested discontinuous conductive paths in response to at least one environmental condition within a region defined by the plurality of nested discontinuous conductive paths. The logic circuit can also be configured to output a signal indicating that the formation of the continuous circuit path has been detected.

This disclosure relates to an automatic meter reading system (ARS) (1) for determining values ​​at multiple distributed installation locations and transmitting data containing said values ​​to a front-end system (HES) (3) via a low-power wide area network (LPWAN). The ARS (1) includes: an HES (3); multiple battery-powered fixed measuring devices (7), each measuring device (7) configured to be installed at one of the multiple installation locations and to determine said value at said one installation location, wherein each measuring device (7) includes an LPWAN connection module configured to establish a wireless communication connection to an LPWAN for transmitting data containing said value to the HES (3) via the LPWAN; and a mobile installation device (13) including a short... A short-range connection module is configured to establish a short-range wireless communication connection (15) to one of a plurality of measurement devices (7) to be installed at one of a plurality of installation locations. The short-range connection module is configured to send LPWAN connection candidate information to one of the plurality of measurement devices (7) to be installed at one of the plurality of installation locations via the short-range wireless communication (15). The LPWAN connection module of the one of the plurality of measurement devices (7) is configured to attempt to establish an LPWAN handshake connection at the one of the plurality of installation locations for the first time based on the received LPWAN connection candidate information.

Diagnostic device (100, 100A), comprising: a sensor (110) that detects diagnostic target information generated by a diagnostic target device (1); a threshold setting unit (127) that sets a threshold for the diagnostic target information; and a diagnostic unit (129) that diagnoses the diagnostic target device (1) based on the diagnostic target information detected by the sensor (110) and the threshold value, wherein the threshold setting unit (127) sets the threshold based on the diagnostic target information in a predetermined period before a diagnostic time, and the diagnostic unit (129) performs a diagnosis based on a current time threshold set at the time of diagnosis and at least one past threshold set in the past.

Aspects of the technology provide a method / system of sensing a change in temperature and / or strain in an optical fibre comprising a substantially continuous or quasi-continuous fibre Bragg grating. A difference spectrum is determined between a reference reflected spectrum of the fibre Bragg grating and a monitored reflected spectrum. The difference spectrum is analysed to determine whether the optical fibre is experiencing a change of type a)—a temperature increase or an extension—or of type b)—a temperature decrease or a contraction. The technology may be applied to sensing a change in temperature and / or strain in a superconductor or detecting a risk of a quench in a superconductor.

Method for measuring variations of a first and a second independent physical quantity using an optical transducer. This method comprises: - the measurement (122) of a spectral response of a Bragg grating in, respectively, a first and a second group of spatial modes, then - the determination (130) of a first displacement amplitude of a first power peak in the spectral response of the Bragg grating in the first group of spatial modes and the determination (130) of a second displacement amplitude of a second power peak in the spectral response of the Bragg grating in the second group of spatial modes, then - the establishment (132) of the variations of the first and second physical quantities from the first and second displacement amplitudes determined. Fig. 2

The invention relates to a method for determining individual air pollutant levels in specific regions using an electronic device (30) with a processor (32). The method comprises the following steps: - Calculating an individual respiratory volume of a person taking into account the duration of stay and mode of movement of the person in a measurement region (22, 24), - Obtaining a prevailing air pollutant concentration in the measurement region (22, 24) via a network, - Determining the individual air pollutant exposure of the person, taking into account the calculated individual breathing volume and the obtained air pollutant concentration, - Output of a signal based on the individual air pollution level.

A position indicating device for indicating the position of a movable section of a bearing element relative to a fixed section, in particular a spring or constant force hanger, an impact damper, a shock absorber and / or an articulated strut, comprising a mechanical movement transmission for transmitting the movement of the movable section of the bearing element, an indicating device for coupling to the movement transmission and for indicating the movement of the movable section of the bearing element, the indicating device having a hollow cylinder and a carrier movably supported in the hollow cylinder and in movement coupling with the movement transmission, wherein the hollow cylinder comprises a longitudinal slot in which a radially outwardly running transverse peg which moves together with the carrier extends, the transverse peg being configured for moving at least one extreme value indicator arranged radially outside the hollow cylinder. Also related to a bearing device which is in movement coupling with such a position indicating device.

The present application belongs to the field of inspection and detection, and discloses a kind of hot working curve record parameter detection sample ruler and detection method, including the detection sample ruler body made of transparent material;Detection sample ruler body is provided with insulation time detection scale, heating rate detection scale and heating rate serial number corresponding table;The scale line of heating rate detection scale uses heating rate serial number label;Heating rate serial number corresponding table is used to indicate the corresponding relationship between heating rate serial number and heating rate.When hot working curve record parameter detection is carried out, only need to cover insulation time detection scale and heating rate detection scale in the corresponding position of hot working curve record parameter, directly compare with hot working curve to obtain detection conclusion, reduce the intervention of human factors, solve the problem that traditional curve record detection operation process wastes a lot of time, and is easy to make mistake, the use of the detection sample ruler greatly improves the inspection efficiency, guarantees the accurate and reliable detection result.

The (measuring) electronics are configured to be connected to a sensor (serving to detect at least one measured quantity) and to receive and evaluate one or more (analog) sensor signals from the sensor that depend on the at least one (process) measured quantity. Furthermore, the (measuring) electronics are configured to generate (digital) simulation values ​​that quantitatively represent the at least one (process) measured quantity and / or at least one operating parameter of the (measuring) electronics or of a (process) measuring device formed therewith.

An object of the present disclosure is to reduce the number of sensors required to estimate the distribution of an environmental value. An estimation method includes an acquisition step, a kriging step, and a longitudinal extension step. The kriging step includes obtaining a distribution of the environmental value on a reference plane by kriging method based on a measured value of the environmental value at a measuring point of a sensor. The longitudinal extension step includes obtaining a distribution of the environmental value in a height direction in a longitudinal region based on the environmental value obtained in the kriging step with respect to a specified point on a reference plane and a function representing a variation in the environmental value in the height direction. The longitudinal region includes the specified point on the reference plane and extends in the height direction.

Method for detecting a signal stabilization of an output signal (I) of a sensor (1) comprising the following steps: - Applying the sensor (1) with at least one chemical and / or physical process quantity or a signal representing the chemical and / or physical process quantity (S100); - n-fold sampling of the output signal (I) of the sensor (1), which the sensor (1) outputs as a response to the application, in order to obtain correspondingly sampled measured values ​​(S200); - Determining gradients or difference values ​​for the sampled measurements (S300); - Determining a minimum or minima for the specified gradients or difference values ​​(S500); - Generating a regression model for the determined gradients or difference values ​​and deriving at least one regression coefficient (S600); - Check and decide, based on the determined minima and at least one regression coefficient from the regression model, whether the output signal (I) of the sensor (1) has settled within a predefinable tolerance range around a target value and whether the output signal (I) has calmed down (S700).

An on-board insect monitoring system, comprising insect luring and capturing means, a digital camera, cleaning means, and a processor configured to acquire images or video from the camera, recognize at least one insect species; count insects of the species, evaluate an insect density, provide an indication corresponding to the recognition, the count and / or the density, and actuate the cleaning means in response to the density. A method for monitoring and predicting insect populations, comprising providing insect monitoring stations for collecting data comprising a presence of an insect species, a number of insects of the species, and / or and a total number of insects, providing the data to a server, retrieving previously received data, determining, a change in the data, ascribing, to each station, a predicted value for the data based on the changes and the station locations and providing the data and / or the predicted value to a user.