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163 results about "Proximity sensing" patented technology

Proximity sensing is the ability of a robot to tell when it is near an object, or when something is near it. This sense keeps a robot from running into things. It can also be used to measure the distance from a robot to some object. The simplest proximity sensors do not measure distance.

Multi-modal fusion touch fingertip module

The utility model discloses a multi-mode fusion touch fingertip module which comprises a supporting layer (107). The outer surface of the supporting layer (107) is provided with a proximity sense sensing layer (101) used for sensing the distance, a temperature site (102) used for sensing the temperature, a touch sense / slip sense sensing layer (103) used for sensing the touch sense, a control element (104), an electrode layer (105) used for transmitting signals and a force sensing layer (106) used for sensing the force. According to a three-dimensional force three-dimensional tactile sensing network, multi-mode sensor signals can be obtained, a multi-branch tactile neural network is constructed by using the signals, and a tactile fingertip module is formed, so that the shortages of two-dimensional tactile sensing can be made up, and three-dimensional characteristics of tactile sensing can be obtained; that is to say, richer haptic information such as output magnitude, direction, acting position, spatial distribution of force, dynamic force time sequence characteristics, spatial distribution of temperature and the like can be decoupled, various characteristics of the object are extracted, and the accuracy of object haptic recognition is improved.
Owner:CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACAD OF SCI

Data access control method and system based on zero knowledge proof

The invention provides a data access control method and system based on zero-knowledge proof, and relates to the technical field of data access control. According to the method, a root key of a unique hardware identity is generated through a physical unclonable function of a data request equipment chip, and meanwhile, real-time running state data of equipment is collected; the two are subjected to cryptographic binding to form an equipment credible state voucher; secondly, detecting capacitance field disturbance when data holding equipment approaches through a capacitive proximity sensor array, and generating an interactive response mode; then, the equipment credible state certificate and the interactive response mode serve as private input to generate a composite zero-knowledge proof, and identity authenticity and physical proximity are proved to data holding equipment at the same time on the premise that sensitive information is not leaked; and after the data holding device passes verification, the data access permission is authorized immediately, and a temporary encryption communication channel is established, so that the reliability and instantaneity of security authentication between IoT devices can be improved.
Owner:NANJING YISHENG SAFETY TECH RES INST CO LTD +1

Distributed multi-mode flexible sensor based on fiber bragg grating and multi-mode sensing method

The invention discloses a distributed multi-mode flexible sensor based on a Bragg fiber grating and a multi-mode sensing method, and the sensor comprises a dielectric layer which is used for enhancing the non-contact electric field response, and achieving the detection of the approaching distance of a target object; the optical fiber sensing layer is arranged below the dielectric layer and comprises distributed Bragg optical fiber grating sensors arranged in an S shape and an elastic silica gel layer, the optical fiber grating sensors are used for collecting distributed tactile force signals and temperature signals, and the elastic silica gel layer wraps the optical fiber grating sensors to achieve stress transmission; the conducting layer is arranged below the optical fiber sensing layer, is made of an array type flexible conducting material and is used for collecting and transmitting multi-mode electric signals; an encapsulation layer; wherein the dielectric layer, the optical fiber sensing layer and the conductive layer cooperatively realize multi-mode fusion of distributed proximity sensing, distributed force touch sensing and non-contact temperature sensing. The multi-modal flexible electronic skin can meet the requirements of accurate acquisition and real-time feedback of multi-modal information in a complex environment.
Owner:TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL

Tactile sense and proximity sense sensor and detection method

The invention discloses a tactile sense and proximity sense sensor and a detection method, and relates to the technical field of sensors, the sensor comprises a tactile sense and proximity sense sampling unit; the antenna comprises an upper substrate, a middle dielectric layer and a lower substrate from top to bottom in sequence. A bristle adhesion material is integrated on the surface of the lower substrate and is used for picking up a target object; the upper substrate comprises a first bottom interdigital electrode layer; the lower-layer substrate sequentially comprises a top-layer interdigitated electrode layer and a second bottom-layer interdigitated electrode layer from top to bottom; the first bottom-layer interdigitated electrode layer, the top-layer interdigitated electrode layer and the middle dielectric layer form a touch sensing layer; tactile information of the bristle adhesion material and the target object is determined according to the capacitance value of the tactile sensing layer; the second bottom interdigitated electrode layer is used as a proximity sense sensing layer, and the distance attitude information between the bristle adhesion material and the target object is determined by the capacitance values of the two proximity sense sensing layers in the same plane. According to the invention, the sensitivity of measuring tactile information and proximity information is improved.
Owner:BEIJING UNIV OF TECH

Bobbin yarn taking and placing device for automatic winder

The bobbin yarn taking and placing device comprises a bobbin replacing conveying line, the two ends of the bobbin replacing conveying line communicate with a bobbin conveying line between the automatic winder and a spinning frame, and a bobbin taking mechanism and a bobbin placing mechanism are arranged on the side face of the bobbin replacing conveying line; proximity sensing devices are arranged below the bobbin taking mechanism and the bobbin placing mechanism to sense the positions of bobbins, and the bobbin taking mechanism drives a bobbin clamping jaw to take the bobbins through a translation mechanism and a lifting mechanism; a pipe guiding groove is formed below a stock bin of the pipe discharging mechanism, and bobbins are discharged one by one and overturned to be in a vertical state through the material pushing and overturning mechanism. The device realizes automatic taking-out of bobbins containing residual yarns and automatic putting-in of empty bobbins, improves the production efficiency, reduces the labor cost, and is suitable for modern textile production.
Owner:LAOHEKOU SHENGHAI TEXTILE CO LTD

Electronic device and antenna structure

An electronic device and an antenna structure are provided. The electronic device includes a housing and an antenna structure which includes a first radiating element with a first radiating part, a feed part, and a grounding part, a second radiating element with five branches, a grounding element connected to the grounding part, a feed element connected to the feed part, a switching circuit electrically connected to the third branch, and a proximity sensing circuit electrically connected to the fourth branch. The first branch and the second branch intersect at a first branching point, the third branch and the fourth branch intersect at a second branching point. The fifth branch is connected between the first branching point and the second branching point. The first radiating part extends between the first branch and the second branch so the first radiating part and the second radiating element couple with each other.
Owner:WISTRON NEWEB CORP

Approach sense and touch sense collaborative mechanical gripper sensing system for self-adaptive grabbing

The invention provides a proximity sense and touch sense collaborative mechanical gripper sensing system for self-adaptive grabbing, and belongs to the technical field of robot sensing. The proximity sense and touch sense collaborative mechanical gripper sensing system comprises a sensing module, an execution module and a data transmission and processing module; the sensing module comprises a flexible transparent fingertip, a proximity sensor array and a multiplexer; the execution module comprises a three-finger manipulator and a mechanical arm; the data transmission and processing module comprises a controller and an upper computer. Compared with a traditional proximity sense-touch sense grabbing perception scheme, a proximity sense-touch sense collaborative perception framework with space consistency is established, information alignment errors are effectively reduced, the time-space consistency and fusion efficiency of perception are remarkably improved, the multi-dimensional characteristics of a target object can be represented more comprehensively, and the method has the advantages of being high in robustness, high in robustness and the like. And the grabbing posture and force are adjusted in a self-adaptive mode, and high-precision and high-robustness grabbing in the dynamic environment is achieved. In addition, soft grabbing is achieved through the flexible fingers, object damage is avoided, and the grabbing efficiency is improved.
Owner:NANCHANG UNIV

Personal protective equipment compliance and personal wellness monitoring systems and methods with intelligent sensor units and proximity sensing

Monitoring systems and methods incorporating wearable personal protection items with intelligent sensor units configured to communicate with one another and determine proximity of individuals to one another while also monitoring personal wellness and safety protocol compliance across a community of persons.
Owner:EATON INTELLIGENT POWER LTD

Tracking and alert method and system for worker productivity and safety

An exemplary method and system is disclosed that facilitates the monitoring of worker's productivity and safety, for example, at a construction site and other like labor-intensive occupation and settings. The exemplary method and system provides wearable-based motion sensing and / or proximity sensing between worker and construction equipment. A study discussed herein suggests that sensing at two or more torso locations can provide 95% accuracy in classifying worker's action or motion at a construction site. In some embodiments, as discussed herein, the acquired sensed data are transmitted, over a mesh network, e.g., established between the wearable devices, to a cloud infrastructure to facilitate the real-time monitoring of action and actions that such sites.
Owner:GEORGIA TECH RES CORP

Self-adaptive proximity sensing method, full-screen building terminal and storage medium

The invention relates to a self-adaptive proximity sensing method, a full-screen building terminal and a storage medium, and the method comprises the following steps: under the condition that no object approaches, the following steps are executed at set intervals: obtaining external environment parameters, analyzing the external environment parameters, dynamically generating parameters in a smoothing algorithm according to the analysis result of the external environment parameters, and outputting the parameters in the smoothing algorithm; a dynamically adjusted smoothing algorithm is obtained; predicting a preset number of ADC values at a future moment; smoothing a preset number of ADC values through the dynamically adjusted smoothing algorithm to obtain a smoothed ADC value array, and dynamically generating an induction trigger threshold through the smoothed ADC value array; and performing infrared induction monitoring according to the dynamically generated induction triggering threshold.
Owner:XIAMEN LEELEN TECH CO LTD

A medicinal material grinding and filtering system

The present invention discloses a medicinal material grinding and filtering system, which is characterized in that it includes: a base, a shell, a screen, a swivel assembly, a first roller pressing assembly, a scraper, a second roller pressing assembly, a control assembly, and a proximity sensor assembly; the shell, the swivel assembly, the first roller pressing assembly, and the second roller pressing assembly are all fixedly mounted on the base, and the shell has a cylindrical and horizontally arranged first chamber, a feed port and a discharge port are provided on the shell, the discharge port is located at the bottom of the shell, and the screen is adapted to be arranged at the discharge port; the swivel of the swivel assembly has a cylindrical and horizontally arranged second chamber, the first chamber and the second chamber are coaxially arranged, and filter holes are uniformly provided on the swivel. The medicinal material grinding and filtering system proposed by the present invention can prevent the screen from being blocked; and can further crush the medicinal materials, and can also prompt the medicinal materials to move back and forth on the screen to promote further filtering of the medicinal materials; and can also realize continuous feeding of the medicinal materials.
Owner:ANHUI JIUFURONG ZHENWEI FOOD CO LTD

Robot and safety control method, device and equipment thereof, storage medium and product

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.
Owner:GUANGDONG MIDEA ELECTRIC CO LTD +2

Proximity sensing analytics

PCT designated stageWO2025146260A1TransmissionEngineeringData mining
Various aspects of the present disclosure relate to an analytics function apparatus for proximity sensing in wireless communication. The apparatus comprises: at least one memory; and at least one processor coupled with the at least one memory and configured to cause the analytics function apparatus to: receive a request from a consumer for proximity sensing analytics, the request including: a list of target entities for which analytics information should be provided, the target entities including target UEs and target non-UE objects; filter information including conditions for which proximity information of each target entity should be generated; and a reporting destination for the generated proximity information; determine proximity information of the targeted UEs and / or target non-UE objects; and send the generated proximity information to the reporting destination.
Owner:LENOVO INT COƖPERATIEF U A

Proximity sensing system and method for a marine vessel with automated proximity sensor location estimation

A proximity sensing system on a marine vessel includes a main IMU positioned on the vessel at a main installation attitude and a main location, a first proximity sensor configured to measure the proximity of objects from a first sensor location on the vessel, and a first sensor IMU positioned on the vessel at the first sensor location and at a first installation attitude. A control system is configured to receive main IMU data from the main IMU and first IMU data from the first sensor IMU, wherein the main location of the main IMU on the marine vessel is known and at least one of the first sensor location and the first installation attitude of the first sensor IMU on the marine vessel are initially unknown, and calibrate the proximity measurements from the first proximity sensor based on the main IMU data and the first IMU data.
Owner:BRUNSWICK CORP

Devices and methods for controlling proximity sensing in input-display device

A display driver includes a driver circuit and a sensing controller. The driver circuit is configured to drive a display panel according to display information. The display panel defines a sensing region. The sensing controller interface circuit is configured to transmit an output vertical sync signal to a proximity sensing controller. The proximity sensing controller is configured to generate positional information of an input object based at least in part on a resulting signal received from a sensor electrode disposed in the sensing region. The output vertical sync signal comprises encoding the display information in the output vertical sync signal.
Owner:SYNAPTICS INC

Handheld electronic device

A mobile phone may include an enclosure including a housing component and a front cover coupled to the housing component and defining a front exterior surface of the mobile phone. The mobile phone may further include a display positioned below the front cover and a sensor module positioned below a front-facing sensor region of the front cover and including a biometric sensing system. The biometric sensing system may include a first lens, a light emitter positioned below the first lens and configured to emit light onto an object, a second lens, and a light sensor below the second lens and configured to capture an image of the object. The sensor module may further include a proximity sensing system positioned between the first lens of the biometric sensing system and the second lens of the biometric sensing system.
Owner:APPLE INC

Robot system with casing elements

A robot system comprising movable parts, a casing element, a force limiting sensor, a joint position sensor, and one or more processors, wherein the casing element comprises a vibration actuator. Multiple embodiments are introduced for the implementation of the casing element include haptic warning and proximity sensing. Furthermore, means to use the casing element to guide the robot and generate haptic effect by the vibration actuator to assist the user in a human-robot collaboration and / or guiding function are also disclosed.
Owner:MANTIS ROBOTICS INC

Wearable tactile perception reconstruction system and method

The invention discloses a wearable tactile perception reconstruction system and method, and the system comprises a myoelectric prosthetic hand, a flexible arm band, a vibration feedback array, and a feedback controller, and the flexible arm band is used for binding the system to the big arm of a subject; the myoelectric prosthetic hand is located at the tail end of the limb of the subject, is connected with the feedback controller and transmits data of the pressure sensor, the distance sensor and the motor encoder to the feedback controller; the vibration feedback array is located on the inner side of the flexible arm band and makes direct contact with the skin of a subject. The feedback controller is located on the outer side of the flexible arm band and at least comprises a control box and a circuit board, and the circuit board is fixed in the control box; in the system, the myoelectric prosthetic hand obtains body sense, force touch sense and proximity sense perception information data, the feedback controller receives the perception information data of the myoelectric prosthetic hand, processes the perception information data and converts the perception information data into stimulation coding instructions, and the vibration feedback array receives the stimulation coding instructions and conducts vibration touch sense feedback to achieve touch sense perception reconstruction.
Owner:SOUTHEAST UNIV

Isolation device

The invention provides an isolation device, and relates to the technical field of infectious disease prevention and control isolation, the isolation device comprises an isolation monitoring base, the top end surface of the isolation monitoring base is provided with a treading groove, and the center of the bottom surface of the inner end of the treading groove is fixedly provided with a proximity sensing assembly; through fixed installation of a matching strip block and a door plate of a room door, when an isolated person opens the room door of the room for prevention and control isolation of infectious diseases, first, information is wirelessly transmitted to a monitoring center, and second, information is transmitted to the monitoring center; therefore, an isolation prevention and control worker in the monitoring center can know the current behavior of opening the door of the isolated person at the first time, and the problem that key behaviors such as approaching or opening the door cannot be found and processed in time due to the lack of behavior supervision on the isolated person when the person is isolated in a single room is solved. And the hidden danger of virus transmission caused by isolation failure exists.
Owner:THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV

Display device

A display device includes a display panel, an input sensor operating in an input sensing mode or a proximity sensing mode, a sensor controller driving the input sensor in the input sensing mode or the proximity sensing mode, and a main controller controlling driving of the sensor controller. The input sensor includes a sensing area and a non-sensing area. The sensing area is divided into a proximity sensing area and a plurality of reference areas in the proximity sensing mode. The main controller generates a noise control signal based on a plurality of reference sensing signals sensed in the reference areas, and determines whether an object is in proximity based on the noise control signal and a proximity sensing signal sensed in the proximity sensing area.
Owner:SAMSUNG DISPLAY CO LTD

Proximity sensing control method and device, electronic equipment, medium and program product

The invention relates to a proximity sensing control method and device, electronic equipment, a medium and a program product, and the method comprises the steps: obtaining the target attitude information of a terminal when a second proximity sensing value is sampled under the condition that the first proximity sensing value is greater than a proximity sensing threshold and the second proximity sensing value is greater than a far-away sensing threshold; if it is determined that the terminal is currently in a far-away state according to the target attitude information, obtaining a current bottom noise value of the proximity sensor, and updating a far-away sensing threshold and a proximity sensing threshold according to the current bottom noise value; according to the embodiment of the invention, under the condition that the first proximity induction value is greater than the proximity induction threshold, if the second proximity induction value is greater than the far-away induction threshold, but the terminal is currently in the far-away state, the far-away induction threshold and the proximity induction threshold are updated in time, so that the reliability of the proximity induction function of the terminal can be effectively improved.
Owner:BEIJING XIAOMI MOBILE SOFTWARE CO LTD

Organic light emitting diode display having photodiodes

Systems, methods, and devices are provided in which photodetectors disposed throughout a display are used to control the display brightness. The photodetectors are to be used for ambient light sensing, proximity sensing, or to compensate for aging OLEDs. In some embodiments, photodiodes are fabricated with OLEDs during the TFT fabrication process. In some embodiments, the photodetectors may be disposed throughout the display in zones containing OLEDs. The photodetectors are used to control the display brightness and color for the OLEDs in areas around each photodetector based on ambient light, aging, and / or nearby objects. A controller makes driving strength adjustments to the OLEDs in each zone independent of other zones. Photodetectors disposed throughout the display may improve proximity sensing and provide additional functionality to the device.
Owner:APPLE INC

Hybrid antenna structure

The invention discloses a hybrid antenna structure. The hybrid antenna structure comprises a grounding element, a feed-in radiation part, a first radiation part, a second radiation part, a first connection radiation part, a second connection radiation part, a short-circuit radiation part, a third radiation part and an integration module, the grounding element can provide a grounding potential; the feed-in radiation part is provided with a feed-in point; the second radiation part is coupled to the feed-in radiation part; the first radiation part can be coupled to the second radiation part through the first connection radiation part and the second connection radiation part; the second radiation part can also be coupled to a ground potential through the short-circuit radiation part; the third radiation part is adjacent to the second radiation part; the integration module is coupled to the third radiation part, wherein the integration module can have functions of circuit adjustment and proximity sensing. The antenna has the advantages of small size, wide frequency band, proximity sensing, high communication quality, low manufacturing cost and the like, so that the antenna is very suitable for being applied to various mobile communication devices, especially narrow-frame devices.
Owner:WISTRON NEWEB CORP

Proximity sensing using structured light

Sensing apparatus includes a projector, which projects toward a target a pattern of spots extending over a predefined angular range about a projection axis. An imaging assembly includes an image sensor and objective optics, which form on the image sensor an image of the target along an imaging axis, which is offset transversely relative to the projection axis. A processor is configured to process signals output by the image sensor so as generate, while the target is within a first span of distances from the apparatus, a depth map of the target responsively to shifts of the spots in the image, and to estimate, while the target is within a second span of distances, nearer to the apparatus than the first span, a distance to the target from the apparatus by detecting in the image a part of the pattern located at an edge of the angular range.
Owner:APPLE INC

An infrared proximity and ambient light brightness sensor with an optical reflective surface

The invention discloses an infrared proximity and ambient light brightness sensor with an optical reflection surface, and relates to the technical field of sensors. The receiving sensing integrated chip of the sensor integrates infrared proximity and ambient light brightness sensing functions, a light emitting chip, an infrared baffle block and a receiving sensing integrated chip are sequentially mounted on a substrate, a transparent packaging colloid covers the light emitting chip, the infrared baffle block and the receiving sensing integrated chip and is combined with the substrate, an optical reflection structure is provided on the upper surface of the transparent packaging colloid, the optical reflection structure has an interval concave-convex structure to form a V-shaped optical reflection surface, the optical reflection structure is located between the light emitting chip and the receiving sensing integrated chip, and the optical reflection structure is provided on the transparent packaging colloid to reflect interference light emitted from the light emitting chip to the receiving sensing integrated chip, thereby reducing optical crosstalk and improving the performance of the proximity distance sensing sensor.
Owner:LEVELEK TECH (SUZHOU) CO LTD

Proximity sensing device

The invention relates to a proximity sensing device. The present disclosure relates to a proximity capture device including a proximity sensor having a light source and a light detector. The light detector includes at least one first photodiode configured to generate a first signal, and at least one second photodiode configured to generate a second signal. The proximity sensor is configured to deliver the output signal based on weighting the first signal. The proximity capture device includes a control circuit configured to provide a weighting coefficient to the proximity sensor and to receive an output signal, and to trigger from a first state in which the weighting coefficient has a first value to a second state when the output signal crosses a first threshold; in a second state, applying the second value to the weighting coefficient; and comparing an output signal obtained by applying the second value with a second threshold to trigger from the second state to the third state when the output signal is less than the second threshold, or to trigger from the second state to the fourth state when the output signal is higher than the second threshold.
Owner:STMICROELECTRONICS INT NV

A bernoulli arm

ActiveCN224689035UWaferMechanical engineering
The utility model provides a kind of Bernoulli arm, including intermediate arm, C type support arm, multiple jet air holes, sensing component and a pair of pressure sensors, wherein, C type support arm includes the middle part being connected with intermediate arm and two branch parts extending in the direction away from intermediate arm, multiple jet air holes are interval arranged in the bottom surface of branch part, and at least one support block fixed in the bottom surface of branch part is provided between every two jet air holes;Sensing component includes first proximity sensing sensor and second proximity sensing sensor, first proximity sensing sensor is fixed in the bottom surface of middle part, second proximity sensing sensor is fixed in the bottom surface of the end of branch part away from intermediate arm, a pair of pressure sensors are respectively arranged in the end of two branch parts away from intermediate arm and interval preset distance between jet air hole, and the distance between every pressure sensor and intermediate arm is greater than half of branch length.The Bernoulli arm of the utility model can find the adsorption anomaly of wafer in time, to avoid wafer drop and breakage.
Owner:SJ SEMICONDUCTOR (JIANGYIN) CORP

A transistor proximity sensor based on interdigital extended gate structure

The application belongs to the technical field of instruments and meters, and particularly relates to a transistor proximity sensor based on an interdigital electrode extended gate structure. The proximity sensor is composed of a voltage source, an ammeter, a transistor, interdigital electrodes and the like. The voltage source is used for supplying power to the transistor drain and the far gate end of the interdigital electrodes, and the near gate end of the interdigital electrodes is electrically connected with the transistor gate via a conductive lead. The working mechanism of the proximity sensor of the application relies on the synergistic enhancement effect among the electrostatic induction between the target object and the interdigital electrodes, the regulation effect of the target object on the interdigital electrode capacitance and the modulation effect of the target object on the voltage division of the near gate end of the interdigital electrodes. When the charged target object or the uncharged target object approaches the extended gate end of the interdigital electrodes, the transistor source-drain current can be changed, so that the proximity sensing function is realized.
Owner:FUDAN UNIVERSITY

A safety device for preventing aluminum from escaping from a low-pressure casting machine

The present invention relates to the technical field of casting machines, and discloses a low-pressure casting machine anti-aluminum escape safety device, comprising an aluminum liquid storage box and a lower platen. The aluminum liquid storage box is located on the left side of the lower platen, a lower mold is fixedly installed on the top of the lower platen, and mounting guide pillars are fixedly installed on both the left and right sides of the top of the aluminum liquid storage box. The right bottom of the aluminum liquid storage box is connected to a liquid injection pipe with one end passing through the left mounting guide pillar and connected to the lower mold. A solenoid valve located between the aluminum liquid storage box and the lower platen is fixedly installed on the wall of the liquid injection pipe, and the tops of the two mounting guide pillars are fixedly connected to the mounting top plate. The low-pressure casting machine anti-aluminum escape safety device can only be pressurized to inject aluminum normally when the conditions of the high-precision proximity sensing switch and the parameter position conditions of the displacement sensing electronic ruler are met. It can only operate normally and automatically when the hardware and program conditions are met at the same time, providing dual protection, and will not cause safety problems due to human settings, making it safer to use.
Owner:CHANGSHA DAIKA TECH CO LTD

Proximity sensing based on ratio change detection

This disclosure describes a method and apparatus for determining whether an object is near an electronic device. When the object is not near the electronic device, the arrangement of two sensors at different distances from a light emitter results in a higher intensity of reflected signal received in the sensor closer to the light emitter and a lower intensity of reflected signal received in the sensor farther from the light emitter. The system uses this difference in reflected signals to calculate the ratio between the signals reflected to the two sensors and uses this ratio to determine whether the object is near the electronic device.
Owner:AMS INTERNATIONAL AG