348 results about "Hall effect sensor" patented technology

The invention discloses an intelligent integrated control platform for an energy storage system, and relates to the technical field of energy storage and control, and the intelligent integrated control platform comprises an intelligent dispatching center which is in communication connection with a sensing data collection module, a sensing data processing module and an intelligent analysis module; the sensing data acquisition module collects data by using a digital temperature and Hall effect sensor and monitors the charging and discharging rate; the sensing data processing module constructs a real-time pipeline, evaluates the health of the energy storage equipment, performs early warning and makes a plan; and the intelligent analysis module tracks system performance, generates a report, analyzes user behaviors and provides personalized services. According to the intelligent integrated control platform of the energy storage system disclosed by the invention, through cooperation of the intelligent dispatching center and the sensing data acquisition, processing and intelligent analysis module, comprehensive monitoring and health assessment of energy storage equipment, effective early warning of faults and optimization of energy management are realized, and meanwhile, system performance visualization and user behavior analysis are provided; and the operation and maintenance efficiency and the personalized service level can be improved.

The invention provides a wireless charging power-off protection method for detecting metal foreign matters based on signal change, which comprises the following steps: monitoring magnetic field change through a Hall effect sensor, detecting temperature abnormity in combination with a temperature sensor, carrying out real-time data processing by utilizing an embedded MCU, and automatically entering a calibration mode before charging each time; the method comprises the following steps: acquiring stable magnetic field distribution as a reference value, tracking magnetic field change by using a self-adaptive filter, continuously monitoring magnetic field intensity change in a charging process, comparing the magnetic field intensity change with the reference value, judging whether the magnetic field intensity change exceeds a normal range or not by setting a threshold value, immediately cutting off a power supply and giving an alarm to a user if foreign matters are detected, and after the user confirms that the foreign matters are removed, stopping charging. According to the method, the foreign matters can be accurately detected in different environments through dynamic threshold adjustment and feature optimization, so that the safety of wireless charging and the user experience are improved.

The invention discloses a wireless charging safety monitoring management method, which comprises the following steps of: monitoring temperature, humidity, current and voltage indexes of wireless charging equipment in real time by deploying a thermistor, a digital humidity sensor and a Hall effect sensor, and preprocessing collected data, including data cleaning, format standardization and abnormal value detection and processing; a data fusion technology is utilized to integrate multi-source information, extract features and analyze correlation among data, an early warning model based on historical data training is established, multi-level early warning is triggered according to different conditions, early warning signals are timely transmitted to related personnel through multiple communication means, and once early warning is triggered, the early warning can be timely carried out. According to a preset emergency response scheme, measures including starting a cooling system, reducing output power and even cutting off a power supply and guaranteeing equipment safety are automatically taken, in addition, safety auditing carried out in each quarter is beneficial to continuously improving an early warning mechanism, and data safety of a monitoring system is guaranteed through an encryption technology and an access control and data backup mode.

A flow sensor for sensing fluid flow. The flow sensor includes an exterior, interior, a circuit board, and first and second ports. The first and second ports permit fluid to flow into and out of the interior. A Hall Effect Sensor in the interior detects the number of revolutions of an impeller. An electric coupler interfaces with the flow sensor and a transmitter for communication of the revolutions of the impeller to a controller. The controller determines the rate of fluid flow in a conduit. The controller issues a command signal to a component of a hydraulic system to alter the rate of fluid flow in the conduit.

The invention discloses a high-precision detection method for a fault electrode of an electrolytic cell, and the method comprises the following steps: S1, carrying out the equipment layout, carrying out the infrared thermal imaging image collection, employing a high-resolution and large-field-angle lens collection device, improving the infrared image effect, improving the detection range, and installing uniformly-distributed current measurement devices, such as a Hall effect sensor, in the electrolytic cell; s2, image acquisition equipment is installed, the image acquisition equipment is installed through a visiting support and related assemblies, and meanwhile, the system adopts an automatic cruise and visiting mode to observe and troubleshoot field fault electrodes. According to the electrolytic cell fault electrode high-precision detection method and the positioning system, through infrared thermal imaging image acquisition, image splicing, deep learning algorithm convolutional neural network identification of a fault electrode plate and calling of a current matrix for analysis, through comparison of the two, a fault is determined through dual-mode fault detection; misjudgment is avoided; and the accuracy of fault pole plate positioning is improved.

A pop-up sensor head with a camera transitions between a retracted and extended state. While retracted, the camera lens is covered. While extended, the camera lens is exposed and available for use. A motor maintains the sensor head at a setpoint position, such as in the retracted or extended state. A position data, such as from a Hall effect sensor associated with the motor, may be used to determine a displacement of the sensor head due to an external force being applied, such as a user pressing on the sensor head. Responsive to this input, the sensor head may transition between the retracted and extended state.

The present invention relates to a leakage detection method for a distribution box, and the technical field of leakage of distribution boxes includes the following steps: S1: real-time acquisition of current signals of each line in the distribution box, using a current transformer or a Hall effect sensor to acquire data; S2: using an adaptive sensitivity adjustment algorithm to automatically adjust the threshold of leakage detection according to real-time environmental parameters and historical data; S3: fast Fourier transform processing of the collected data; S4: when a suspected leakage event is initially detected, a secondary verification procedure is immediately started; S5: after confirming the leakage, the power supply is quickly cut off and an alarm message is sent to a user terminal. The present invention maintains optimal sensitivity and accuracy under different working conditions, avoiding the problem of missed detection or false alarm that may be caused by the traditional fixed threshold method in a complex environment.

A dendrometer, comprising a single mechanical element functionally holds a sample under test via a spring-element in the element that draws two arms firmly against the sample. The spring section of the single mechanical element can be serpentine, or any other shape providing the desired spring constant and range of motion. The one or more spring members extend between the first frame member and the second frame member, wherein the one or more spring structures are nonrigid (extensible and compressible) such that the second frame member is movable relative to the first frame member. The dendrometer comprises a toothed socket on an end of each arm to allow adjustment of the range of clamping. In at least one example, a magnet or actuator attached to one arm, and a Hall effect or other positional sensor, is attached to the alternate arm.

A circuit includes a bias current generator, a temperature compensation circuit, and a Hall effect sensor. The bias current generator has a first input, a second input, a first terminal, and a second terminal. The bias current generator includes a resistor circuit having a first terminal and a second terminal coupled to the first terminal and the second terminal of the bias current generator respectively. The temperature compensation circuit has a first input, a second input coupled to the first input of the bias current generator, and an output coupled to the second input of the bias current generator. The Hall effect sensor has a first terminal coupled to the first terminal of the bias current generator, a second terminal, a third terminal, and a fourth terminal.

The invention discloses an intelligent cable inspection system and inspection method, and belongs to the technical field of cable inspection, and the system comprises an Internet of Things module, and an automatic inspection module, a data collection module, a data monitoring module, a continuous monitoring module, a data background storage module and a visualization module which are wirelessly connected through the Internet of Things module. The automatic inspection module comprises a robot carrying an infrared temperature sensor and an unmanned aerial vehicle, the data acquisition module comprises a digital voltage sensor, the continuous monitoring module comprises a humidity sensor, a Hall effect sensor and a direct current leakage current sensor, and the data background storage module comprises a data recording module, a data storage module and a data analysis module. The cable inspection efficiency and accuracy are improved through the processes of automatic inspection, data acquisition, data monitoring, data storage and visualization.

The invention discloses a battery charging and discharging power control precision optimization method for a BMS system, and relates to the technical field of charging and discharging parameter control, and the method comprises the steps: constructing a second-order resistance-capacitance network equivalent circuit model, and fitting model parameters through a pulse charging and discharging experiment; identifying an error source and quantifying a charge-discharge power control error of the current BMS; a Hall effect sensor and a voltage sampling chip are selected for experimental data acquisition; establishing a compensation model of the temperature to the charging and discharging efficiency; introducing an adaptive control algorithm; a multi-stage constant current-constant voltage charging algorithm is adopted; integrating the capacity attenuation model and the internal resistance growth model; a real-time operating system and a time-triggered task scheduling mechanism are adopted to control the cycle of a charging and discharging power control instruction, and dynamic resource allocation and delay control are carried out. By adopting technical means such as a second-order resistance-capacitance network equivalent circuit model, the precision and the stability of battery charging and discharging power control are remarkably improved.

The invention provides a current distribution monitoring assembly of an integrated gate commutated thyristor. The current distribution monitoring assembly comprises two double-D Rogowski coil groups which are arranged in a crossed manner; wherein each D Rogowski coil group is composed of two coils which are wound reversely and connected in series, and the direction of a middle boundary of the two coils of one of the two double-D Rogowski coil groups is consistent with the current direction of the integrated gate commutated thyristor; the two ferrite shielding layers are respectively attached to the lower part of each double-D Rogowski coil assembly; and the Hall effect sensor is arranged on the ferrite shielding layer at the bottommost layer. The current distribution monitoring assembly of the integrated gate commutated thyristor provided by the embodiment of the invention has the advantages of small size, high compactness and wide measurement bandwidth.

The utility model provides a blending device convenient to operate, which relates to the technical field of blending devices, and comprises a blending box and a regulation and control mechanism, a sealing cover is arranged at the top end of the blending box, and through the arrangement of the regulation and control mechanism, an instruction is sent to an electronic controller through a wireless control unit. The current actual rotating speed data of the motor are obtained through the built-in Hall effect sensor, the controller compares and analyzes the actual rotating speed and the preset target rotating speed, the current control loop is automatically adjusted so as to indirectly regulate and control the running speed of the motor, and the electronic controller controls the current in the motor so as to control the running speed of the motor. The current sensor continuously monitors the change condition of the actual current in the motor coil to ensure that the motor can output the required torque according to the expectation and can also realize the dynamic adjustment of the rotating speed, so that the uniform mixing device can realize the uniform mixing according to the actual operation conditions and the specific requirements of the mixing task; and the rotating speed and the torque output of the motor are flexibly and accurately controlled.

The triaxial apparatus system comprises a triaxial pressure chamber, a top cover and a base are arranged at the upper end and the lower end of a sample arranged in the triaxial pressure chamber respectively, and each of the top cover and the base comprises an anti-freezing solution inlet and an anti-freezing solution outlet; a spiral copper pipe is arranged in the triaxial pressure chamber and is connected with the hot bath system through a sealing connecting pipeline; the GDS pneumatic controller is connected into the triaxial pressure chamber, the load sensor applies axial force to a sample, the GDS backpressure controller is connected to the bottom of the triaxial pressure chamber, and the linear variable differential transformer LVDT is arranged outside the triaxial pressure chamber; and the axial Hall effect sensor and the radial Hall effect sensor are respectively arranged at the axial position and the radial position of the sample. The device is simple in structure, convenient to operate, high in measurement precision and good in repeatability and reliability, and the precision and efficiency of frozen soil mechanical property research are remarkably improved.

This disclosure describes a method to calibrate a position of an optical image stabilization (OIS) lensing element 308 based on a temperature reading. The temperature reading is of one or more sensors, such as a Hall Effect sensor, and the position is a deviation from a center position, which is the position of the OIS lensing element 308 when it is not influenced by a force. A center drift coefficient is generated based on the temperature reading. A derived value for the position is adjusted based on the center drift coefficient. Additionally, a scaling sensitivity coefficient is generated based on the temperature reading. The adjusting of the derived value for the position is further based on the scaling sensitivity coefficient. The center drift coefficient and the scaling sensitivity coefficient are further based on maximum and minimum values for the Hall Effect sensor at the temperature reading and a calibration temperature.

The invention relates to the technical field of power utilization monitoring, and discloses a power utilization safety monitoring device based on a magnetic suspension power distribution technology, and the device comprises a current detection system which obtains the working state information of a current transformer and a Hall effect sensor through a data collection module; the data analysis module performs normalization processing on the frequency, the current, the direct current component, the environmental magnetic field intensity, the power supply voltage and the aging drift amount; the reliability analysis module calculates the reliability of the two types of sensors based on the normalized index; the weight endowing module dynamically distributes sensor weights in combination with the temperature influence factors; and the current summary calculation module outputs the final detection current through weighted fusion. The problem that a single sensor is easily influenced by frequency deviation, direct current component, temperature drift and magnetic field interference under complex working conditions is solved, high-precision and high-reliability self-adaptive current monitoring is realized, and the safety monitoring capability of a magnetic levitation power distribution system is remarkably improved.

A debris sensor apparatus comprising a head portion, a male-threaded portion, and a shaft comprising a debris sensor assembly, the debris sensor assembly comprising one or more permanent magnets comprising a cavity on a first end, a Hall-effect sensor configured within the cavity, a first pole piece configured adjacent to a second end of the one or more permanent magnets, and a second pole piece configured adjacent to the first end.

The utility model discloses a magnetic steel positioning mechanism of a decorative ring assembly, which comprises a large support, a decorative ring assembly arranged on the large support and rotatably connected with the large support, and a stepping motor driving the decorative ring assembly to rotate, the stepping motor is fixed on the large support, one end of the decorative ring assembly is fixedly provided with a rotating shaft, and the other end of the decorative ring assembly is fixedly provided with a magnet. The rotating shaft is provided with a magnetic steel assembly, and the large support is fixedly provided with a Hall sensor module matched with the magnetic steel assembly. According to the utility model, the acting surfaces of the decorative ring assembly are switched through the stepping motor, so that different shapes are presented, different light requirements are met, a dynamic effect of rotation of the decorative ring assembly is generated when the decorative ring assembly rotates, and compared with a single light effect of sequential lighting of a conventional light source, the light effect is richer.

A rotary hammer includes a housing and a mode selection dial supported in the housing. The mode selection dial includes a cam. The housing supports a motor providing a rotational output. The housing supports a linkage moveable between a first position and a second position in response to engagement by the cam. A loss-of-control detection system measures acceleration of the housing and disables the motor upon the acceleration exceeding an acceleration threshold. The housing supports an operating mode detection system including a magnet and a Hall-effect sensor. The magnet is coupled to the linkage and moveable therewith between a third position corresponding to the first position of the linkage and a fourth position corresponding to the second position of the linkage. The Hall-effect sensor provides an output signal indictive of the position of the magnet. The loss-of-control detection system is selectively disabled based upon the output signal.

A weapon sight system includes a weapon sight having a body with an optical element configured to superimpose a reticle visible through the optical element. The weapon sight includes a controller in electronic communication with a light source and configured to control the light source. The light source may include LEDs for generating reticle images on the optical element under a variety of different brightness conditions. The light source may include an LED array for generating a plurality of different reticle images on the optical element. The weapon sight includes a Hall effect sensor in electronic communication with the controller to adjust a user-selectable setting, the user-selectable setting including a reticle brightness or a reticle image. The weapon sight system includes a magnetic input device for providing input to the Hall effect sensor of the weapon sight.

The utility model discloses a photovoltaic panel fault intelligent detection circuit and instrument, comprising a photovoltaic cell string current detection circuit, a voltage detection circuit, a temperature monitoring circuit, an insulation resistance detection circuit, a data acquisition and processing unit and a power supply management circuit which are connected with each other. The photovoltaic cell string current detection circuit is used for monitoring current of each string of photovoltaic cells, each string of photovoltaic cells is correspondingly provided with a Hall effect sensor, a shunt resistor and an amplifier, and the voltage detection circuit is used for monitoring open-circuit voltage and working voltage of a photovoltaic panel and comprises a high-impedance voltage follower and a differential amplifier. The temperature monitoring circuit is used for monitoring the surface temperature and the environment temperature of the photovoltaic panel in real time and comprises a thermocouple and a signal conditioning circuit, and the insulation resistance detection circuit is used for detecting the insulation performance of the photovoltaic panel and a connecting line of the photovoltaic panel, measuring the leakage current or impedance change of the photovoltaic panel and judging the insulation condition by applying high-voltage pulse or alternating-current voltage to a photovoltaic array.

The present disclosure describes sensor devices that can be readily integrated with prosthetic devices to provide sensing of force and torque applied to the prosthetic device during use. The sensor device includes an adaptor section that readily connects to standard prosthetic components and a base section. The base section has a deflectable portion and a fixed portion. Cantilevers in the deflectable portion house magnets and corresponding Hall effect sensors are housed in the fixed portion. When axial and / or torsional forces are applied, the cantilevers deflect relative to the fixed section and the Hall effect sensors provide a corresponding output that correlates to the axial and / or torsional forces applied.

A welding electrode apparatus may be mounted to a programmable motion controller such as a robot that presents it to a workpiece along a pre-programmed path conforming to the workpiece surface. The apparatus has a first drive for rotating the welding electrode about its own axis. The welding electrode holder is part of a welding electrode had that is mounted to, or includes, an adapter that itself mounts to a programmable robot. The welding head is sprung on the adapter, such that application of the welding rod against the workpiece under a given force deflects the springs. The adapter can be adjusted in real time relative to the robot to smooth out variations in application force. The apparatus uses Hall effect sensors to sense deviations from a datum of spring displacement or force, and has a servo-motor to re-adjust positioning of the welding head relative to the robot.

This disclosure describes a method to calibrate a position of an optical image stabilization (OIS) lensing element 308 based on an electric current reading of one or more areas of a mobile imaging device 200. The position is a deviation from a center position, where the OIS lensing element 308 is not influenced by a force. A coupling compensation coefficient is generated based on the electric current reading. A derived value for the position is adjusted based on the coupling compensation coefficient. A scaling sensitivity coefficient is generated based on the electric current reading. The derived value for the position is further adjusted based on the scaling sensitivity coefficient. The coupling compensation coefficient and the scaling sensitivity coefficient are further based on maximum and minimum values for the Hall Effect sensor at the temperature reading and a calibration temperature.

The invention discloses a lightweight high-efficiency precise motor control system for a robot, and relates to the technical field of motor control and robots, and the system comprises an intelligent integrated communication hub which is in communication connection with a sensing and monitoring module, a control and planning module and an analysis and decision support module; the sensing and monitoring module monitors the position of a motor shaft and motor current data through an absolute magnetic encoder and a Hall effect sensor; the control and planning module designs a hierarchical control architecture, integrates PID control, adaptive control and model prediction control, calculates and sends a control instruction, performs robot fault diagnosis, mode recognition and decision optimization through a machine learning algorithm, and insights the long-term trend and abnormal conditions of the robot through a big data analysis platform; and the analysis and decision support module develops a graphical user interface, displays the state of the robot and adjusts parameters. According to the scheme design, accurate control and real-time response of robot control are improved.

A smart parcel delivery box with authenticated access and theft detection system, consisting of: a weatherproof housing that defines a secured storage compartment, a microcontroller-based control unit that is functionally connected to control all system functions, a matrix keypad positioned on an outer surface of the housing to receive authentication inputs, at least one infrared proximity sensor positioned within the storage compartment to detect the presence and absence of packages, at least one vibration sensor attached to the housing to detect unauthorized tampering attempts, a magnetic door position detection system comprising at least one Hall-effect sensor and associated magnetic elements to monitor the state of the door position, a servo-controlled automatic locking mechanism for securing said storage compartment, visual indicators comprising RGB LED elements to display system status information, an electronic screen for displaying system information and generating one-time passwords, acoustic signaling devices for issuing acoustic warnings and confirmations, a wireless communication means for sending notifications and receiving remote commands and a power supply means for supplying electrical energy to all system components.

A head-worn device is presented, featuring an intuitive power control mechanism based on the device's physical hinge states. The device includes a pair of hinges, each connecting a temple piece to the frame, capable of transitioning between open and closed positions. Sensors, such as Hall effect sensors, detect these positions and output signals accordingly. A hardware logic circuit receives the signals, controlling the device's power state-activating when both hinges are open and deactivating when closed. The system also incorporates hardware security circuitry that forcibly disables hardware components like cameras and microphones in the inactive state, ensuring user privacy. This power control mechanism is designed to be robust against unintended activations and integrates seamlessly with the user's natural interactions with the eyewear, offering a secure, convenient, and user-friendly experience.

The utility model discloses a multi-optical-filter switching device comprising an installation box which is a cavity with an opening at the top and is internally provided with a rotary accommodating cavity; a plurality of optical filter mounting holes are formed in the middle of the rotary slide glass at equal intervals, the rotary slide glass is rotationally arranged in the rotary containing cavity, an angle recognition part is arranged on the outer side of the rotary slide glass and used for recognizing the rotation angle of the rotary slide glass, and a driving part is arranged above the rotary slide glass and used for driving the rotary slide glass to rotate. The beneficial effects of the utility model are that the angle position of the rotary slide glass can be accurately detected through the arrangement of the driving part and the soft magnetic sheet and the Hall effect sensor of the angle identification part; by means of the liftable cleaning cotton and the second motor for driving the cleaning cotton, when the internal ICR optical filter needs to be cleaned, the cleaning cotton can move downwards and make contact with the optical filter, then wiping is conducted through rotation, the cleanliness of the ICR optical filter is guaranteed, and the performance of equipment is maintained.

The invention provides a field calibration method based on a wireless clamp buckle type three-phase electric energy calibration device. The field calibration method comprises the following steps: establishing a wireless communication link between a three-phase electric energy meter and a portable calibration host through a wireless synchronous trigger module; three groups of split-core type current transformers are respectively connected with a detected three-phase line in a clamping manner, a Hall effect sensor and a dual-mode sampling unit of a magnetoresistive sensor are arranged in each group of split-core type current transformers, and current signal fusion processing is realized through a Kalman filtering algorithm; synchronously acquiring the three-phase voltage signals; and generating a three-dimensional verification report comprising the time mark information, the harmonic distribution diagram and the error trend curve, wherein the three-dimensional verification report is packaged by adopting an extensible markup language format and is embedded with a digital signature. According to the invention, power-off-free online verification can be realized, the current measurement precision and the communication reliability are remarkably improved, the anti-interference capability is enhanced, the complex electric energy quality analysis requirement of a new energy access scene is met, and an efficient and reliable technical means is provided for electric energy metering verification of an electric power system.

The invention relates to the field of gas ejectors, in particular to a valve needle stroke monitoring device and method.The valve needle stroke monitoring device comprises a clamping mechanism, a magnetic induction mechanism, a double-guide reset mechanism and a shell mechanism, and the clamping mechanism is used for clamping a valve body of the gas ejector; the magnetic induction mechanism comprises an ejector rod, a magnet and a Hall effect sensor, one end of the ejector rod is configured to be in contact with the end part of a valve needle of the gas ejector, the magnet is arranged at the other end of the ejector rod, and the Hall effect sensor is arranged opposite to the magnet to detect the displacement of the magnet; the double-guide reset mechanism is used for providing axial reset force for the ejector rod; the shell mechanism is used for integrating the clamping mechanism, the magnetic induction mechanism and the double-guide reset mechanism. According to the method, the real-time stroke of the valve needle is calculated according to the difference value between the real-time position signal and the initial position signal. By adopting the technical scheme, the stroke of the valve needle can be directly measured in a high-precision, high-reliability and convenient-to-mount manner.