120results about "Automatic balancing arrangements" patented technology

In one embodiment, a method includes accessing magnetic data from a magnetic-measurement device. The magnetic data corresponds to one or more locations of the magnetic-measurement device. The method includes accessing geofencing data corresponding to an area; comparing the magnetic data with the geofencing data; based on the comparison, determining that the locations correspond to the area; and, based on the determination, authenticating the magnetic-measurement device for access to one or more resources.

In one embodiment, a method includes accessing a first series of first magnetic values that represents a first magnetic recording that includes a first set of first magnetic measurements. Each of the first magnetic values represents one of the first magnetic measurements. The method includes accessing a second series of second magnetic values that represents a second magnetic recording that includes a second set of second magnetic measurements. Each of the second magnetic values represents one of the second magnetic measurements. The method includes approximately aligning the first and second series with each other; calculating a difference between the first and second series as aligned with each other; and determining a similarity between the first and second series based on the difference.

In one embodiment, a method includes generating navigation or localization information based on a combination of first data that are based on first measurements of a magnetic field by one or more magnetic sensors and second data that are based on second measurements by one or more other sensors. The method includes determining an anomalousness of a magnetic field and, based on the determined anomalousness of the magnetic field, at least temporarily adjusting a weight of the first measurements relative to the second measurements in the generation of the navigation or localization information.

A monitoring signal generation circuit of a SPS and method thereof is disclosed. The SPS provides an output current. The monitoring signal generation circuit provides a current monitoring signal related to the output current. The monitoring signal generation circuit includes a simulation current circuit and a control circuit. The simulation current circuit receives a reference voltage and provides a simulation current signal or the reference voltage as the current monitoring signal. The control circuit is coupled to the simulation current circuit and configured to receive the reference signal, the current monitoring signal and an indication signal. During a period when the indication signal indicates that power switches of the SPS are turned off, the control circuit controls the simulation current generation circuit to provide the simulation current signal or the reference voltage as the current monitoring signal according to the current monitoring signal and the reference voltage.

An apparatus for diagnosing a battery according to one aspect of the present disclosure may include a measuring unit configured to measure a voltage value of the battery at each predetermined cycle during a battery charging process; and a processor configured to calculate a resistance value of the battery based on the measured voltage value of the battery, determine a resistance change pattern by comparing the calculated plurality of resistance values with a preset criterion profile, and determine the state of the battery based on the determined resistance change pattern.

The invention relates to a method for treating plants, comprising the following steps: (S100) detecting a sensor signal (SS) indicative of a rotation of a grounding disk (41a, 41b) by means of a wheel rotational speed sensor (51) of a safety device (40) in order to deduce that the grounding disk (41a, 41b) is in contact with the ground, (S200) starting up a treatment device (1) by way of the safety device (40) if a rotation of the grounding disk (41a, 41b) and / or no electric current flowing through the grounding disk (41a, 41b) have / has been detected.

A radiofrequency detector comprises a squarer circuit comprising first and second branches coupled between a voltage supply and ground, the first branch comprising at least a first squarer transistor receiving a RF sinusoidal input voltage, the first squarer transistor being coupled to the voltage supply through a respective load, the second branch comprising a second reference transistor being coupled to the voltage supply through a respective load, an output voltage being formed at an output node of the first branch and a reference voltage being formed at a respective output node coupled to the load of the second branch, a squared voltage being obtained by a difference voltage of the output voltage and reference voltage, wherein the circuit is configured to feed back to a control electrode of the second reference transistor a feedback signal that is a function of the difference voltage.

Vehicle electrical system (VES) with an insulation monitor (IM), two supply potentials (V+, V-) and a ground potential (PE), wherein the supply potentials (V+, V-) are DC voltage potentials and wherein a filter capacitor (C1', C2') is connected between each of the two supply potentials (V+, V-) and the ground potential (PE), wherein the insulation monitor (IM) is connected to the ground potential (PE) and the supply potentials (V+, V-) and is equipped with an evaluation device (A) which is configured to output an error signal (S) when the actual voltage change rate of at least one voltage between the supply potentials on the one hand and the ground potential is greater than a predetermined maximum voltage change rate, wherein the evaluation device (A) is configured to output an error signal when the actual voltage change rate of a first voltage between a first of the supply potentials (V+) and the ground potential (PE) is substantially the inverse of the actual voltage change rate of a second voltage between a second of the supply potentials (V-) and the ground potential (PE).

In one embodiment, a method includes accessing magnetic data from a magnetic-measurement device. The magnetic data corresponds to one or more locations of the magnetic-measurement device. The method includes accessing geofencing data corresponding to an area; comparing the magnetic data with the geofencing data; based on the comparison, determining that the locations correspond to the area; and, based on the determination, authenticating the magnetic-measurement device for access to one or more resources.

A safety valve, a well system and a method is disclosed. The safety valve, in one aspect, includes a tubular housing, a flow tube positioned within the tubular housing, a valve closure mechanism positioned within the tubular housing, the flow tube configured to move between a closed position and an open position and thereby move the valve closure mechanism between a closed state and an open state, an electromagnet coupled to one of the tubular housing or the flow tube, and one or more permanent magnets coupled to an other of the flow tube or the tubular housing. The safety valve according to this one aspect, may further include an electrical sensor coupled to the electromagnet, the electrical sensor configured to sense for a change in an electrical parameter associated with the electromagnet to determine a health of the safety valve.

A circuit device and an electronic apparatus. The circuit device includes: a voltage division circuit that divides a voltage to be measured and outputs the divided voltage to a voltage division node; a comparison circuit that compares the voltage of the voltage division node with a reference voltage; and a control circuit. The voltage division circuit includes first to n-th resistors provided in series between a voltage node to be measured and a voltage division node, and first to n-th transistors in which an i-th transistor and an i-th resistor are connected in parallel. The control circuit sets the j-th transistor to one of ON and OFF, sets the first to (j-1)-th transistors to the other of ON and OFF, and outputs measurement data by determining the ON or OFF of the j-th transistor on the basis of the comparison result of the comparison circuit.

In an example, a device includes a controller and a direct current (DC)-to-DC converter coupled to the controller and configured to provide a load current to a load. The device also includes a low-dropout (LDO) regulator coupled to the DC-to-DC converter. The controller includes digital logic, and the digital logic is configured to determine the load current. The digital logic is configured to turn on the LDO regulator if the load current is above a predetermined threshold. The digital logic is also configured to turn off the LDO regulator if the load current is below the predetermined threshold.

The present application provides a photovoltaic array test method and system, the method being applied to a photovoltaic array test system. The photovoltaic array test method comprises: obtaining the quantity of photovoltaic branches connected in a photovoltaic array; determining a reference electrical parameter according to the quantity of the photovoltaic branches and electrical parameters of the photovoltaic branches; if the photovoltaic array is electrically connected to the photovoltaic array test system, monitoring a test electrical parameter of the photovoltaic array; and determining a test result of the photovoltaic array according to the test electrical parameter and the reference electrical parameter.

An example apparatus, computer-implemented method, and computer program product for determining a variable resistance of a conductive portion of a resistance-based sensing device are provided. An example apparatus includes a resistance-based sensing device having a conductive portion configured to indicate a physical characteristic of an environment based on a variable resistance of the conductive portion. The apparatus further includes a controller electrically coupled to the resistance-based sensing device, having a process and a storage device storing instructions that are operable, when executed by the processor, to cause the processor to transmit stored energy from an energy storage device to the conductive portion of the resistance-based sensing device, determine a time interval associated with a voltage drop in the energy storage device, and determine the variable resistance of the conductive portion of the resistance-based sensing device based at least in part on the time interval.

A device can include analog circuits formed with a substrate, including a comparator, analog switches, and a balance current circuit. A sensor current and balance current can be applied at an input of the comparator. The sensor current, balance current or both can be modulated with a switch control signal. Digital circuits can include switch control logic that generates the switch control signal in response to an output of the comparator and a modulation clock signal. Digital signal processing circuits can generate a multi-bit digital value from a bit stream output by the comparator circuit. The multi-bit digital value can be an analog-to-digital conversion of the sensor current. Corresponding methods and systems are also disclosed.

The invention discloses a measurement system and equipment, and relates to the technical field of automatic balance bridge impedance measurement, and the measurement system comprises a signal collection module, a data processing module, a signal generation module and a main control module. The data processing module is connected with the signal acquisition module; the signal generation module is connected with the data processing module, and the data processing module is also used for controlling the signal generation module to generate a source signal and outputting the source signal to the tested equipment, so that the tested equipment can output a current signal and a voltage signal; the main control module is connected with the data processing module through the communication isolation module, and the main control module is used for receiving the impedance value output by the data processing module through the communication isolation module; the communication isolation module is used for physically isolating the main control module from the data processing module and allowing the high-frequency signal to be transmitted between the main control module and the data processing module, and the communication isolation module is arranged, so that physical isolation of the main control module and the data processing module is realized, noise is reduced, and the anti-interference capability is enhanced.

The method can include receiving a baseline signal curve, operating a thermal reactor, measuring a signal, optionally determining a state (e.g., state of health) of the thermal reactor, and controlling the thermal reactor based on the signal. The method can include receiving (e.g., determining, measuring, etc.) a resistance-temperature and / or resistance-time curve; operating a thermal reactor comprising resistively heating a porous catalytic element; measuring an electrical signal (e.g., resistance, current, voltage, etc.) of the thermal reactor; optionally inferring a temperature of the thermal reactor based on the electrical signal and the resistance-temperature; and controlling the thermal reactor based on the electrical signal. The system can include one or more of a reaction module (e.g., an electrical coupler or electrode and catalytic element, etc.), inlet and outlet valves, power source, electrical feedthroughs (e.g., leads, supports, etc.), sensors, and computing system (e.g. controller).

Electrical circuit (10, 40) comprising: a DC power supply (12); an electrical load (14); and an insulation fault detection device (15, 41), arranged in parallel with the load (14), comprising: a voltage divider; a diode bridge (23); and a comparator (34) comparing a voltage at the output of the diode bridge and a setpoint voltage (Vcons). Figure 1

A battery parameter estimating apparatus according to an embodiment of the present disclosure includes an impedance measuring unit configured to output a plurality of AC currents to a battery and measure a plurality of impedance values for the battery to correspond to the plurality of AC currents; and a control unit configured to generate a first profile by fitting the plurality of impedance values, correct the plurality of impedance values based on the first profile, determine a plurality of criterion values based on the plurality of impedance correction values, generate a second profile by fitting the determined plurality of criterion values, compare the plurality of impedance correction values with the second profile, and determine whether or not to set a battery parameter according to the comparison result.

The invention provides a photovoltaic array detection method and system, the method is applied to the photovoltaic array detection system, and the photovoltaic array detection method comprises the steps: obtaining the number of connected photovoltaic branches in a photovoltaic array; determining reference electrical parameters according to the number of the photovoltaic branches and the electrical parameters of the photovoltaic branches; under the condition that the photovoltaic array is electrically connected with the photovoltaic array detection system, testing electrical parameters of the photovoltaic array are monitored; and determining a detection result of the photovoltaic array according to the test electrical parameter and the reference electrical parameter.

A current sensing circuit includes a sensing resistor, a current monitor, a variable resistor, and a processor. The sensing resistor is arranged in a circuit to be tested and coupled between a first voltage terminal and a second voltage terminal of the circuit to be tested. The current monitor has a first terminal and a second terminal. The first winding is coupled between the first terminal and the first voltage terminal, and the second winding is coupled between the second terminal and the second voltage terminal. The variable resistor and the first winding are connected in series between the first terminal and the first voltage terminal. The current monitor obtains a sensing current according to a first voltage on the first terminal, a second voltage on the second terminal, and an impedance of the sensing resistor and generates a sensing signal according to the sensing current. The processor determines whether to adjust the impedance of the variable resistor according to the sensing signal.

A circuit device includes a voltage divider circuit that divides and outputs a measurement target voltage to a voltage division node, a comparison circuit that compares a voltage of the voltage division node with a reference voltage, and a control circuit. The voltage divider circuit includes a first resistor to an n-th resistor provided in series between a measurement target voltage node and the voltage division node, and a first transistor to an n-th transistor with an i-th transistor coupled in parallel to an i-th resistor. The control circuit outputs measurement data by setting a j-th transistor to one of on and off, setting the first transistor to the (j−1)-th transistor to the other of on and off, and determining the j-th transistor is on or off based on a comparison result of the comparison circuit.

Systems and methods for measurement and management provide complex measurements cost-effectively at very high accuracy. These methods and systems in some cases achieve measurement accuracy exceeding the accuracy of the reference standards they rely on, and eliminate expensive and disadvantageous recalibration procedures. The accurate measurements are integrated with management functions, applying the measurement data to meet objectives of the integrated system and workflow goals of its user. The disclosed systems and methods comprise an explicit or expressly represented model both of themselves and of candidate external systems to be measured and managed. The models may be configured and reconfigured by the owner-user through either local or remote means. The system intelligently reconfigures itself to adapt dynamically to the conditions of measurement and the user's and system's goals at each moment. In an embodiment, the system includes high-accuracy and reconfigurable components including a meter or control head adapted for user precision assembly and maintenance that computes and displays or communicates the measurements, displaying measurements in desired units, grouping functions according to ergonomic and cognitive principles based on the activity and workflow of a user in relation to the internal model. The use of models permits the system to compute and provide complex and inferred measurements of ultimate interest to the user, including quantities that cannot be directed measured and only can be determined through reasoning or computation by applying models to raw measurement data. The precision-assembly modular electromechanical design further permits an owner-user to precisely assemble, maintain, modify the apparatus and calibrate the equipment for accuracy.

Method for reducing noise in a vehicle traction circuit power supply system, and associated vehicle traction circuit power supply system. The invention relates to a method and a power supply system for a vehicle traction circuit, the traction circuit comprising a traction motor (4) and a main inverter (18) adapted to deliver an alternating voltage to supply the traction motor (4), the power supply system (2) comprising a self-contained electrical power source (6) providing a first direct current electrical voltage (V1), connected to a voltage boost converter (8) adapted to deliver a second direct current electrical voltage (V2) to the main inverter.The system includes a control block (24) configured to determine a value for the second DC electrical voltage based on a vehicle operating parameter, either vehicle speed (Vveh) or electrical power (Pcons) consumed or delivered by said traction motor, and to control said voltage boost converter (8) to deliver the determined second DC electrical voltage (V2). Figure 1 for abbreviations.

A voltage calibration circuit arranged in a chip and comprising a voltage monitor circuit, a calibration circuit and a storage circuit is provided. The voltage monitor circuit is coupled to at least one power management unit of the chip and configured to: calculate a voltage-code graph based on a received reference voltage and a received divided voltage; and output at least one output code based on the voltage-code graph and at least one output voltage received from the power management unit(s). The calibration circuit is coupled to the voltage monitor circuit and the power management unit(s), and configured to receive the output code(s) and adjust an output level of the power management unit(s) based on the output code(s) and a target code. The storage circuit is coupled to the calibration circuit, and configured to store the voltage-code graph and the output level of the power management unit(s).

A pre-driving stage drives one or more Field Effect Transistors in a power stage driving a load. A method for measuring current flowing in the Field Effect Transistors includes: measuring drain to source voltages of the one or more Field Effect Transistor; and measuring an operating temperature of the one or more Field Effect Transistor. The current flowing in the Field Effect Transistors is measured by: calculating the respective on drain to source resistance at the operating temperature as a function of the measured operating temperature and obtaining the current value as a ratio of the respective measured drain to source voltage over the calculated drain to source resistance at the operating temperature.

To provide a new cooling device.SOLUTION: A computer-implemented method is disclosed, including the steps of: obtaining first data indicating electric power supplied to a cooling device during a cooling operation on a biological sample, the cooling operation having a given cooling condition; obtaining second data associated with a reference cooling condition; determining, based on the first data and the second data, whether the given cooling condition has a predetermined relationship with the reference cooling condition; and in response to a determination in the determining step that the given cooling condition has the predetermined relationship with the reference cooling condition, outputting a control signal. The given cooling condition for a "live" data cooling operation may thus be validated against the reference cooling condition.SELECTED DRAWING: Figure 1