402 results about "Proximity detection" patented technology

The utility model provides a battery pole piece slitting cutting die, pole piece manufacturing equipment and a battery production line, and belongs to the technical field of batteries. The battery pole piece slitting cutter die comprises a rack, a first slitting assembly, a second slitting assembly and a cutter leaning amount detection assembly. The first slitting assembly comprises a first cutter shaft and a first slitting cutter which are erected on the rack; the second slitting assembly comprises a second cutter shaft and a second slitting cutter which are erected on the rack and are parallel to the first cutter shaft; the first cutter shaft is configured to move in the first direction parallel to the central axis of the first cutter shaft, so that the first slitting cutter can move between the first position making contact with the second slitting cutter and the second position spaced from the second slitting cutter by a preset distance. The cutter leaning amount detection assembly is used for detecting the cutter leaning amount of the first slitting cutter and the second slitting cutter in the first direction. Therefore, more convenient adjustment of the knife leaning amount can be realized, and the adjustment precision is improved, so that the slitting quality of the pole piece is improved.

The invention discloses a railway turnout defect detection method based on an SCG-DETR detection model. Firstly, a C2f-SMP feature extraction module is designed based on SMPConv and C2f modules, local and global information aggregation of features is optimized through continuous convolution and a gating mechanism, and the receptive field and feature extraction capability is enhanced. Secondly, a CGFM module is provided, and by introducing a CAA attention mechanism, weight distribution of a feature map is optimized, and fine-grained extraction and context information fusion are enhanced. And finally, replacing an original loss function with an Inner-GIoU based on an auxiliary frame, and improving the precision of the model while accelerating the convergence of the model. Experimental results show that the score of mAP50 of the improved model reaches 71.0% and is increased by about 4.6%, the detection speed reaches 80.5 FPS, and the requirement for real-time performance in engineering is met.

A system for adaptive multi-factor authentication using NFC tags in identity management networks, consisting of: an NFC-enabled authentication device configured as a passive label embedded in a smart card, a wearable device, or a physical token, the device including a secure element for storing a cryptographic key pair and a unique device identifier; a terminal device comprising an NFC reader module, a cryptographic coprocessor, a biometric capture interface, and a local control processor configured to initiate a cryptographic challenge-response authentication protocol with the NFC-enabled authentication device upon proximity detection within 10 centimeters; a backend identity management server connected to the end device via a secure communications network, the server comprising a context-aware policy engine, a machine learning-based risk assessment module, and an identity federation interface; wherein, upon receiving a response to a cryptographic challenge signed with the private key embedded in the NFC device, the end device transmits this signed response, biometric data, and context-aware metadata including a timestamp, geolocation of the end device, and device trust level to the backend identity management server; and wherein the backend identity management server evaluates a dynamically generated risk assessment based on real-time behavior analysis, authentication history, and context data and applies an adaptive authentication policy that conditionally permits access;denied or escalated to additional authentication factors.

A portable information handling system includes a touch function row between a keyboard and a display that accepts touches or proximity detection at plural locations to initiate an on-screen-display user interface for a selected of plural functions based upon a touch location. Haptic feedback to touch function row inputs is provided by a haptic device coupled directly to a bottom surface of the touch function row, such as with an adhesive. The haptic device couples to a housing cover portion with a brace that integrates a resilient member, such as a spring, to dampen vibration from a haptic vibration source to the housing cover portion.

Sensors capable of detection of user objects within different detection zones can be used to reduce power consumption of a touch screen interface of an electronic device, even while the device is in a suspended or sleep state. At least one object sensor, such as a capacitive sensor, has a detection zone or range exceeding the range of a touch screen sensor, so the touch screen sensor can be placed into a low power state until the object sensor detects a user object in a position approaching the touch screen. The object sensor(s) are positioned around or within the perimeter of the interaction area of the touch screen. The object sensor(s) can have less power consumption than the touch screen sensors, so the electronic device can have extended standby battery life or other more energy efficient operation. Object sensors are also used to detect gestures or user object positioning.

The invention relates to a circuit arrangement (1) for multi-zone heating operation, comprising: a plurality of heating wires (2, 2 '), which can be supplied in parallel by a heating voltage, for heating a touch surface (19) comprising a plurality of zones (20, 20'); wherein a respective heating wire (2, 2 ') is associated with a zone (20, 20'); at least one first switching element (3a, 3a ') for each heating wire (2, 2'), which is coupled between the heating wire (2, 2 ') and one of the two different heating potentials (VH +, VH-) of the heating voltage in such a way that, in a heating mode, a heating current is applied to the respective heating wire (2, 2') in the conducting state of the first switching element (3a, 3a '), and interrupting the heating current in the OFF state of the first switching element (3a, 3a '); a control circuit (12, 6a, 6a ', 6b, 6b') configured to generate, for each heating wire (2, 2 '), individual pulse width modulated first control signals (ST1, ST1') to switch the first switching elements (3a, 3a ') between an on state and an off state, respectively, the individual pulse width modulated first control signals being applied to first control terminals (Ga, G'a) of the first switching elements (3a, 3a'), respectively; wherein the control circuits (12, 6a, 6a ', 6b, 6b') are further designed to apply a respective associated heating current to a plurality of heating wires (2, 2 ') in a common heating stage in parallel, in an overlapping manner and / or in an alternating manner, and wherein at least two of the first control signals (ST1, ST1') differ in terms of their duty cycles.

This application relates to the field of communications technologies, and provides ambient light and optical proximity detection methods, a photographing method, and a terminal, so that an entire display screen of the terminal is used to display a user interface, and this improves user experience. The method specifically includes: controlling, by a terminal, some areas of a display screen to display a black picture for a plurality of times; and when the areas display the black picture, obtaining approaching data of the external object detected by an optical proximity sensor to control turning on or off of the display screen.

An autonomous warehouse robotics system integrates a multi-sensor platform, adaptive payload handling, dynamic task reallocation, advanced navigation, energy management, and comprehensive safety features into one mobile robot chassis. The system utilizes LiDAR, stereo vision, ultrasonic sensors, mmWave radar, thermal cameras, and event cameras to perform complete environmental sensing and obstacle detection. Sensor fusion combines adaptive weighting, multi-modal data integration, and statistical filtering to create high-confidence maps for reactive path planning and collision avoidance. The robot's payload system features machine vision for item recognition, telescopic lifts, variable-width grippers, and real-time toolhead verification to handle a variety of goods. Fleet management is achieved through dynamic task reallocation that considers robot location, battery level, and operational delays, all coordinated by a cross-platform middleware architecture that ensures standardized communication, remote monitoring, and over-the-air updates among diverse robot brands. Energy management optimizes power usage via predictive routing, autonomous return-to-charge, and auction-based scheduling. Safety is maintained through proximity detection, behavior-based intervention, and human-robot cohabitation protocols while advanced localization is enhanced by fusing ultra-wideband positioning with visual landmark alignment, inertial sensing, and machine learning to deliver high accuracy in non-line-of-sight conditions. An onboard edge AI module further refines navigation and task prioritization through neural network inference, ensuring robust, adaptive operation in dynamic, unstructured warehouse environments.

An apparatus including a power circuit to receive power from a power supply of a life safety device, and at least one control circuit powered by the power circuit. The control circuit to, in a calibration mode, receive a signal from an ambient light sensor and determine a baseline ambient light level based on the signal from the ambient light sensor. The control circuit to, in a proximity detection mode, receive another signal from the ambient light sensor, compare the other signal from the ambient light sensor to the baseline ambient light level, determine with an analysis that a difference in ambient light from the baseline ambient light level indicates a presence of an object in proximity to the life safety device, and issue an alert indicating the presence of the object in proximity to the life safety device based at least in part on the analysis.

Systems and methods are disclosed for dual, simultaneous, single-session, proximity-based, secure authentication of a Digital Assisted Shopping (DAS) representative and a customer in an unsecured remote location. The method includes installing a mobile banking application on the customer's device and an enterprise application on the DAS representative's device, both with biometric verification. Proximity detection using Bluetooth Low Energy (BLE) initiates a secure session via push notifications. A secure communication channel is established through a secure local handshake, involving encryption key exchange and mutual authentication. The system exchanges data related to customer profiles and financial accounts, continuously monitors geolocation using GPS, Wi-Fi, and cellular data, and performs periodic background biometric re-verifications. AI / ML algorithms analyze customer data to propose financial products and services, which are securely shared with the customer for review and selection. The system facilitates real-time enrollment and transaction processing, terminating the session upon detecting security breaches.

In some implementations, a method of enabling map-less proximity detection may include determining an initial set of proximity relationships between at least a subset of a plurality of transceivers, each transceiver located at a different respective position within a volume or venue. The proximity relationships may be indicative of a spatial relationship between at least a portion of the plurality of transceivers. The method may include obtaining a plurality of measurements of radio frequency (RF) signals transmitted by the plurality of transceivers, the measurements performed by a first mobile device at different locations in the volume or venue. The method may include determining a modified set of proximity relationships having the initial set of proximity relationships, modified based on information from the plurality of measurements.

Devices, systems and methods for magnetic field coupling, as described herein, optimize magnetic coupling between transducers generating and detecting quasistatic magnetic fields by translating the generated and detected magnetic fields into a common frame of reference, such as the Earth's gravitational field. In general, a receiving device has knowledge of the strength and direction of a quasistatic magnetic field generated by a transmitting device, which allows the generated magnetic field to be measured and interpreted by the receiving device in the context of the common frame of reference. Such devices, systems, and methods may use magnetic coupling, for example, for proximity detection and / or for communication between devices. Magnetic coupling may be used for proximity detection, for example, by detecting a magnetic field having a defined magnetic field range and / or by measuring magnetic field strength and / or direction and determining distance and / or location.

A client device associated with a user of a location-based application detects client devices associated with other users which are within proximity of the client device. This detection of other client devices may result in various application actions occurring, such as triggering a multi-user activity between users. Detection of client devices may be performed using personal area network devices of the client devices, such as Bluetooth. Proximity detection can occur when client devices are disconnected from an online system hosting the location-based application with the detection later being reported to the online system by one or both devices.

An apparatus for detecting protective earth (PE) open of an electric vehicle charging controller (EVCC) according to one embodiment of the present invention comprises: a first voltage detection unit for detecting a negative voltage of a connector proximity detection line; and a control unit for determining that a PE between electric vehicle supply equipment (EVSE) and the electric vehicle charging controller is open when the voltage value detected by the first voltage detection unit is within a predetermined value.

Embodiments of the present invention provide a trackable device system comprising a modular housing integrated with personal or enterprise assets. The system includes a chipset with wireless communication modules (e.g., BLE, UWB, GPS, or cellular), a processor, location modules, memory, and power management components. The processor supports proximity detection, geofencing, motion-triggered alerts, lost-mode activation, and SOS signaling to emergency contacts. Integration with mobile platforms enables real-time tracking, augmented reality overlays, and compatibility with networks like Apple Find My™ and Google Find My Device. Security features include encrypted memory, tamper detection, secure pairing, and a secure enclave for sensitive data. In enterprise settings, the system supports blockchain-based inventory logging, role-based access, and RFID / NFC inventory control. The device adapts to diverse form factors and deployment scenarios, ensuring reliable location tracking, anti-tamper protection, and secure asset management for consumer, industrial, and institutional applications.

In an automatic charging device underbody (ACDU) system including a vehicle unit (VU) mounted on a vehicle and a ground unit (GU) installed on the ground and forming an electrical connection to the VU to transmit charging power to the vehicle, the battery-embedded device for supplying power to the GU can include: an inlet to which a connector of a charger can be connected; a power transmission line for transmitting power provided from the charger to the GU through the inlet; a control pilot (CP) circuit for communication with the charger and the GU; a proximity detection (PD) circuit for detecting a connection to the connector of the charger; a rechargeable internal battery providing power to the GU; and a processor monitoring a voltage of the internal battery, and charging the internal battery when a state of charge (SOC) of the internal battery is smaller than a first reference.

Techniques for controlling motion of physical, moving devices within a robotic work cell of an inventory system are disclosed. A user device (e.g., a wearable device) can be used within the workspace to transmit wireless signals. One of these signals can be received by one or more receiving devices associated with the robotic work cell. A proximity monitoring engine can transmit notification data to a machine controller while the signal is being received. Transmitting the notification data may cause the machine controller to execute instructions to halt motion of the robotic device (and / or other moving devices associated with the robotic work cell). The devices of the robotic work cell may remain in a halted state while the signal continues to be received. When the signal is no longer being received, the devices of the robotic work cell may be instructed to resume motion.

The invention relates to the technical field of robots, and provides a robot and a safety control method, device and equipment thereof, a storage medium and a product, the robot comprises electronic skin, the electronic skin comprises a first detection unit and a second detection unit, and the method comprises the following steps: responding to an obstacle approaching the robot, and detecting the approaching speed of the obstacle through the first detection unit; in response to the approaching speed being greater than or equal to a preset speed threshold value, controlling the robot to perform obstacle avoidance path planning and / or speed reduction; detecting a contact force and a contact moment of the obstacle through a second detection unit in response to the obstacle contacting the robot; and determining safety braking parameters of the robot based on the approaching speed, the contact force and the contact moment. Safety speed monitoring based on proximity detection and power and force limitation based on contact detection in man-machine cooperation can be achieved at the same time, a dual protection mechanism of proximity sensing and contact sensing of the robot is achieved, and safety is further improved.

A system and a method are disclosed for proximity detection using a phased antenna array including multiple antenna elements. A method includes transmitting, via a first antenna element and a second antenna element among the multiple antenna elements, a transmission signal; determining, for the first antenna element, a first power of a first injected signal and a second power of a first reflected signal corresponding to the transmission signal; determining, for the second antenna element, a third power of a second injected signal and a fourth power of a second reflected signal corresponding to the transmission signal; calculating, for the first antenna element, a first power metric based on at least one of the first power of the first injected signal or the second power of the first reflected signal; calculating, for the second antenna element, a second power metric based on at least one of the third power of the second injected signal or the fourth power of the second reflected signal; comparing the first power metric with a first threshold value; comparing the second power metric with a second threshold value; and determining whether an object is detected within a proximity range of the phased antenna array, based on the comparison of at least one of the first power metric with the first threshold value or the second power metric with the second threshold value.

Disclosed are systems and techniques for proximity detection using a wearable sensing device. An example method can include obtaining sensing data based on one or more wireless signals, the sensing data comprising at least one of a proximity measurement and a distance measurement; determining, based on the sensing data, a spatial relationship between a device associated with a user and a source of the one or more wireless signals; determining whether the spatial relationship satisfies a proximity condition associated with a distance threshold; and based on a determination that the spatial relationship satisfies the proximity condition associated with the distance threshold, triggering a sensory alert via one or more output components.

A portable catwalk sensing device includes a proximity detector configured to detect a proximity of a conveyor portion of a catwalk tubular transport machine, a tubular carried by the catwalk tubular transport machine, or both, to a predetermined location relative to the rig floor. The device also includes a module having a processor, and configured to communicate with the proximity detector and receive data representing proximity of the catwalk tubular transport machine, the tubular, or both from the proximity detector, a rig floor, or a combination thereof. The module includes a housing and is configured to be portable. The device also includes an alarm coupled to or integral with the module. The alarm is configured to communicate with the processor, such that the processor is configured to cause the alarm to provide an indication to a user of the proximity of the catwalk tubular transport machine, the tubular, or both.

Disclosed herein are methods for improving highly sensitive immunoassays that utilize a capture / release mechanism to reduce non-specific binding.

Disclosed are systems and techniques for proximity detection using a wearable sensing device. An example method can include obtaining sensing data based on one or more wireless signals, the sensing data comprising at least one of a proximity measurement and a distance measurement; determining, based on the sensing data, a spatial relationship between a device associated with a user and a source of the one or more wireless signals; determining whether the spatial relationship satisfies a proximity condition associated with a distance threshold; and based on a determination that the spatial relationship satisfies the proximity condition associated with the distance threshold, triggering a sensory alert via one or more output components.

The utility model discloses a vibration work fixture structure, and particularly relates to the field of fixtures, the vibration work fixture structure comprises an arc-shaped pressing plate, a gasket is arranged on one side of the arc-shaped pressing plate, a bolt is arranged on one side of the gasket, the bolt is inserted into the gasket, the outer wall of the bolt is connected with a connecting shaft through threads, and the connecting shaft is inserted into the arc-shaped pressing plate. One end of the connecting shaft is fixedly connected with a clamp body, the clamp body is of an integrated structure, the clamp body is arranged at the bottom of the arc-shaped pressing plate, and the outer wall of the clamp body is fixedly connected with a first insulating sheet. By arranging the arc-shaped pressing plate and the clamp main body, a workpiece mounted between the arc-shaped pressing plate and the clamp main body can be quickly fastened and is prevented from displacing, so that the effect of quickly clamping and fixing the workpiece is achieved, and a near-sensing detection antenna part of the workpiece cannot be pressed; therefore, the proximity detection antenna part of the workpiece is damaged, and unnecessary loss is caused.

A capacitive element (2) comprises: a conductive detection electrode (10); a conductive guard electrode (11); and an insulating film that is made of an insulator and has one surface in close contact with one surface of the detection electrode (10) and the other surface in close contact with one surface of the guard electrode (11). The capacitive element (2) is a foldable sheet-like member.

An antenna power adjustment method, applied to an electronic device including a UWB antenna, a UWB chip, a proximity detection apparatus and a switching switch. The method includes receiving a first input when the switching switch is in a first state; and adjusting, in response to the first input, the switching switch to a second state, and reducing a radio frequency transceiving power of the electronic device. When the switching switch is in the first state, the UWB antenna is communicated with the proximity detection apparatus via the switching switch, and the electronic device adjusts the radio frequency transceiving power of the electronic device according to a capacitance signal of the UWB antenna. When the switching switch is in the second state, the UWB antenna is communicated with the UWB chip via the switching switch, and the electronic device receives and transmits a signal via the UWB antenna.

To solve the problems that doors open without a reason, and that doors are closed in contact with an obstruction.SOLUTION: Provided is a proximity detection system (10) for detecting an object (O) in a detection volume (V). The proximity detection system (10) comprises first and second boundary members (11, 12) defining a plane (P). The first boundary member (11) is opposed and movable relative to the second boundary member (12). The first boundary member (11) includes a detector (20). The detector (20) includes one or more directional emitters (30) and one or more directional receivers (40). The one or more emitters (30) are placed facing an acute angle α to the plane (P), measured in a horizontal plane, in order to direct electromagnetic radiation at the angle α to the plane (P). The one or more receivers (40) are placed facing an acute angle θ to the plane (P).SELECTED DRAWING: Figure 2

The utility model discloses a vehicle approaching detection prompting device which comprises a buffer plate installed in front of a cargo carrying table, a distance measuring sensing module is installed on the buffer plate, a plurality of infrared sensing modules are installed on the cargo carrying table, the buffer plate is fixed to a sliding block, the sliding block is connected to the cargo carrying table in a sliding mode, and the distance measuring sensing module is connected with the infrared sensing modules. A matching plate slides on the cargo carrying table, a buffer spring is fixed between the buffer plate and the matching plate, a control module is installed on the cargo carrying table, an alarm module is installed on the front side of the cargo carrying table, and the alarm module, the infrared sensing module and the distance measuring sensing module are all connected with the control module through wires. The buffering plate is slidably connected to the supporting plate, and the supporting plate is fixed to the output end of the air cylinder, so that distance measurement can be conveniently conducted on a vehicle, a driver is reminded, vehicles with different heights are prevented from colliding with the cargo carrying table, a reversing buffering structure is additionally arranged, and the vehicle is prevented from being damaged when collided.

Methods and systems for close detection are provided. An input device has an opened state and a closed state. The input device includes a first portion comprising a touch sensor having a sensing area. The touch sensor includes a plurality of transmitter electrodes and a plurality of receiver electrodes. The input device also has a second portion comprising a plurality of features. A sensor circuit is configured to drive the plurality of transmitter electrodes with sensing signals and receive resulting signals from the plurality of receiver electrodes. A processing system is configured to generate an acquired image from at least a portion of the sensing area; compare the acquired image to a reference image, wherein the reference image includes data corresponding to the plurality of features; and determine whether the input device is in the closed state based on the comparison of the acquired image to the reference image.