302 results about "Proximity detection" patented technology

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.

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.

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.

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.

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.

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.

A mobile robot system for automated operation of a data center or telecommunications office, includes a moveable robotic platform with a multiplicity of tools integrated therein to operate on a network element within a bay, with integrated RFID (radio-frequency identification) tags and visual alignment markers attached to fiber optic connectors and ports of the network elements. The mobile robot system positions a robot probe arm with an RFID probe for proximity detection to identify a cable and associated fiber optic connector based on a unique RF identifier of a tag on the fiber optic connector. The robot probe arm has a connector gripper to engage and unplug the associated fiber optic connector.

The invention relates to the technical field of fault detection, and particularly provides a voltage inspection device fault detection method, a battery system and a storage medium. The method comprises the following steps: acquiring actual measurement voltage of each detection unit of a to-be-detected voltage inspection device in a current inspection period; determining the average voltage of the to-be-detected voltage inspection device in the current inspection period according to the actually measured voltage of each detection unit of the to-be-detected voltage inspection device; aiming at a target detection unit in each detection unit of the to-be-detected voltage inspection device, according to a first deviation between the actually measured voltage of the target detection unit and the average voltage and a second deviation between the actually measured voltage of the target detection unit and the actually measured voltage of an adjacent detection unit, calculating the average voltage of the to-be-detected voltage inspection device; the proximity detection unit detects whether the target detection unit has a fault or not, specifically, the number of the detection units spaced from the target detection unit is smaller than or equal to 2, and therefore the problems in the prior art can be solved.

The technology described herein is directed towards a wearable device that includes a passive metasurface of unit cells with a segmented ground plane of electrically separated segments. When the wearable device is worn, e.g., as a ring or wristband that contacts the wearer's skin, the wearer's skin conductivity electrically connects the separated segments to provide a ground plane. With a complete ground plane, the metasurface's unit cells resonate when exposed to a transmitted signal and reflect a distinct signature corresponding to a physical radiation pattern of signals reflected by the activated metasurface. When not worn, the metasurface is deactivated because of the electrically disconnected ground plane segments. Thus, when a transceiver transmits a wireless radio frequency signal towards an activated metasurface, the radiation pattern of the reflected signal is distinct per metasurface, providing a signature of that particular metasurface, which can be used for proximity detection and / or authentication, for example.

The present invention discloses an underwater communication device for use by divers, comprising: at least one permanent magnet positioned at an edge of said device and configured to generate a magnetic field; at least one magnetic sensor with proximity detection functionality positioned at an edge of said device and configured to detect said magnetic field when a second underwater communication device is brought into proximity; a pairing module configured to: receive a proximity indication from said magnetic sensor when said magnetic field is detected, initiate a communication pairing session in response to said proximity indication, and establish a shared connection with said second underwater communication device, wherein the shared communication link enables subsequent underwater communication between the devices later when the devices are no longer in proximity identified by said magnetic field;

A proximity detection and collision avoidance system determines whether a collision risk exists between two vehicles by measuring magnetic field vectors generated on each of the vehicles as the relative distance between the vehicles decreases.

The invention relates to a radio identification unit (1) with a radio identification receiver (2) and a proximity detector (3) connected to the radio identification receiver (2), wherein the proximity detector (3) has a pyroelectric PIR sensor (25) for detecting the approach of a person in the vicinity of the radio identification receiver (2) and is configured to activate the radio identification receiver (2) when a person's approach to the proximity detector (3) is detected. The PIR sensor (25) has two horizontally adjacent sensor elements (11a, 11b and / or 11c, 11d) with a sensor surface sensitive to infrared waves, which is covered by a cover (10) that is at least partially transparent to infrared wavelengths, wherein a vertical bridge (13) is located between the pair of sensor elements (11a, 11b and / or 11c, 11d).11a, 11d) is arranged in the space between the cover and a platform (12) of the PIR sensor (25) which supports the sensor elements (11a, 11b, 11c, 11d).

The utility model discloses a human body approaching detection device which comprises a PIR infrared pyroelectric sensing module used for detecting and receiving an infrared signal in an external environment and converting the infrared signal into an electric signal to be output, and a BLE Bluetooth controller used for generating a signal processing instruction and achieving Bluetooth signal receiving and transmitting with external communication equipment. The switching value output module is used for responding to a signal processing instruction and outputting a switching value signal, the signal output end of the PIR infrared pyroelectric sensing module is electrically connected with the signal input end of the BLE Bluetooth controller, and the signal output end of the BLE Bluetooth controller is electrically connected with the signal input end of the switching value output module. The signal output end of the switching value output module is electrically connected with the signal input end of an external action execution mechanism. While the human body approaching detection efficiency and sensitivity are ensured, the overall hardware structure of the device is greatly simplified, the overall size of the device is reduced, and meanwhile the hardware cost and operation power consumption of the device are remarkably reduced.

The present invention provides a proximity detection system (10) for detecting an object (O) in a detection volume (V) comprising:a first and a second boundary member (11,12), defining a plane (P);The first boundary member (11) facing and movable relative to the second boundary member (12) and; the first boundary member (11) comprising a detector (20);the detector (20) comprising one or more directional emitters (30) and one or more directional receivers (40);wherein the one or more emitters (30) are positioned facing an acute angle α to the plane P, measured in the horizontal plane, to direct electromagnetic radiation at an angle α to the plane P and the one or more receivers (40) are positioned facing at an acute angle θ relative to the plane P.

The present invention is a cylindrical grinding apparatus including a first and second detecting means for detecting proximity between one end and another end of a crystal rod and a main shaft and a subordinate shaft in a non-contact manner and a drive mechanism that can adjust moving speed of a second support unit on the subordinate shaft, wherein, in support with contact between the one end of the crystal rod and the subordinate shaft, moving speed B of the second support unit in time from proximity detection between the one end and the subordinate shaft by the second detecting means to the support with contact is adjusted to be slower than moving speed A until the proximity detection; and in support with contact between the another end of the crystal rod and the main shaft, moving speed D in time from proximity detection between the another end and the main shaft by the first detecting means to the support with contact is adjusted to be slower than moving speed C until the proximity detection. This can provide a cylindrical grinding apparatus that can prevent occurrence of damage in an end portion of a crystal rod and mechanical misalignment of a support unit, reduce process time, and reduce necessity of maintenance of parts to detect positional relationships between the crystal rod and the main shaft etc.

To provide a proximity detection apparatus and a proximity detection method with improved hover detection sensibility.SOLUTION: A proximity detection apparatus 100 of the present invention includes a detection controller 110 and a touch panel 120. The detection controller 110 includes a drive unit 112 that drives a sensor line on an X side or a Y side, a measurement unit 114 that measures an electrostatic capacity Cm, Cpx, Cpy formed by the sensor line on the X side or the Y side, and a detection unit 116 that performs touch detection or hover detection based on the electrostatic capacity Cm, Cpx, Cpy measured by the measurement unit 114. The drive unit 112 improves a sensibility of the hover detection by changing a frequency of a drive signal that drives the sensor line on the X side or the Y side when performing the hover detection.SELECTED DRAWING: Figure 7