115 results about "Light sensing" patented technology

The application relates to an adaptive control system for dynamic sensitivity adjustment of a photoelectric sensor, comprising: a photoelectric sensor, the sensitivity parameter of which can be adjusted online, used for collecting and outputting an image sequence; a target detection and feedback unit, used for carrying out target detection on the image sequence output by the photoelectric sensor, obtaining a boundary box of the target, a detection confidence and a local signal-to-noise ratio expectation value of the target area; an ambient light sensing unit, used for acquiring an ambient light intensity and generating a predicted ambient light intensity; a prediction model unit, used for predicting a scene displacement amplitude of a next frame based on a motion vector of a current image frame; and a parameter solving unit, which is internally provided with a sensor response model and a motion blur probability model, and is used for constructing a cost function with the sensitivity parameter as a variable; the application can realize better adaptive control.

The present disclosure provides a screen control method and device of a terminal equipment, a terminal equipment and a storage medium, wherein the method comprises: acquiring gray scale information of at least one set area of a screen of the terminal equipment and backlight brightness information of the screen; determining a light sense compensation value according to the gray scale information of the at least one set area and the backlight brightness information; compensating a light sense value collected by a light sense sensor according to the light sense compensation value to obtain a compensated light sense value; and controlling the brightness of the screen of the terminal equipment according to the compensated light sense value. Thus, the light sense value of the light sense sensor can be accurately obtained, so as to avoid the situation that the light intensity calculated according to the light sense value of the light sense sensor does not match the environmental brightness, thereby improving the accuracy of the brightness control of the screen of the terminal equipment and improving the user experience.

The application discloses an intelligent high-saturation snapshot method and system based on motion sensing and adaptive white balance delay, and belongs to the field of intelligent terminal image processing. The method is applied to an intelligent terminal comprising an inertial motion sensing module, an ambient light sensing module, a camera acquisition module and an end-side processing unit. Data is collected by the inertial motion sensing module, combined with dynamic threshold, trajectory continuity verification and false touch prevention condition identification effective swing. Based on ambient light data, a continuous mapping model is used to calculate the white balance delay time. Frame-level synchronous trigger shutter is adopted to collect images by using single camera continuous frames or double camera synchronous frames. After motion blur compensation and dynamic saturation enhancement, high-saturation clear images are output, and the output image metadata contains a special identification field. The application breaks through the industry technical prejudice, reduces the false trigger rate to below 0.5%, and improves the image forming rate to above 95%. Without adding new hardware, the application can be widely adapted to various intelligent terminals, solves the industry pain points of high false trigger, uncontrollable best imaging opportunity and swing blur of traditional snapshots, and reduces the difficulty of infringement and right protection evidence.

This invention discloses a vision-electrophysiological multimodal eye-tracking zoom control system and zoom glasses, relating to the field of zoom glasses technology. The zoom optical element has at least one control area. The multimodal sensing unit includes a vision detection module, an EOG detection module, and an ambient light sensing module, used to collect the wearer's eye state information, periocular potential information, and ambient light information, respectively, when the glasses are worn. A cross-modal adaptive calibration unit is used to calibrate the eye state information using periocular potential information when the ambient light information does not meet preset lighting conditions. The focus control unit is used to calculate the eye's gaze direction and gaze distance based on the eye state information, determine the target control area based on the gaze direction, generate focus control parameters based on the gaze distance, and drive the target control area to focus using the focus control parameters. This invention improves zoom performance by coordinating visual signals and EOG signals.

A light sensing device is provided. The light sensing device includes a semiconductor substrate and a light sensing region in the semiconductor substrate. The light sensing device also includes a filter element over the light sensing region and a light shielding element over the semiconductor substrate and beside the filter element. The light sensing device further includes a dielectric element over the light shielding element and beside the filter element. A top of the light shielding element and a bottom of the dielectric element have different widths.

The application provides a monitoring sensing system, which comprises at least one measuring device, an electric connecting piece and a central control device; the measuring device comprises a laser sensing module and / or an image sensing module, the laser sensing module is configured to emit sensing laser to a target area and acquire the distance between the target area and the laser sensing module, and the image sensing module is configured to acquire image information of the target area; the central control device comprises a power supply module and a control module, and the electric connecting piece is configured to form electric connection between each measuring device and the central control device, so that the power supply module supplies power to the measuring device and the control module controls each measuring device.

The application discloses a chip packaging structure and a preparation method thereof. The chip packaging structure comprises a substrate, a chip structure with an optical window area and an electrical connection structure are arranged on a first surface of the substrate; a light-transmitting plate covering the optical window area of the chip structure; an inner side dam blocking piece arranged close to a side surface of the light-transmitting plate; an outer side dam blocking piece arranged around an outer side of the chip structure; and a plastic encapsulation body arranged between the outer side dam blocking piece and the inner side dam blocking piece and covering the electrical connection structure. The preparation method sequentially prepares the above chip packaging structure. The inner side dam blocking piece is arranged on a peripheral side of the optical window area, and the outer side dam blocking piece is arranged on a peripheral side of the chip structure, so that, when the plastic encapsulation body is formed, the plastic encapsulation material is located between the inner side dam blocking piece and the outer side dam blocking piece, and does not immerse to an upper surface of the light-transmitting plate, or even overflow into the optical window area for light sensing, so that the integrity and stability of the optical performance of the optical window area are ensured.

The present invention relates to a vertically-charge-transferring pixel sensor (VPS) and methods of manufacture and operation thereof. In the VPS, deep trench isolation (DTI) structures and shallow trench isolation (STI) structures in a substrate contain deep trench electrodes and shallow trench electrodes, respectively. In a light sensing operation, a positive bias voltage can be applied between the substrate and the deep and shallow trench electrodes to raise a potential barrier at boundaries of the DTI and STI structures and the substrate. This reduces the likelihood of photoelectrons being captured at the boundaries, thus reducing loss of photoelectrons and contributing to enhanced quantum efficiency. In addition, in the STI structures, the shallow trench electrodes may be offset toward light sensing regions beside the STI structures. In this way, a voltage applied to the shallow trench electrodes has a greater impact on potentials in the light sensing regions than on potentials in charge readout regions, thus additionally reducing loss of photoelectrons and minimizing the influence on MOS transistors in the charge readout regions.

This invention discloses a cooling control method and device for a lithium battery energy storage system in a desert environment, relating to the field of new energy storage technology. The method includes: constructing a shallow desert heat exchange structure, optimizing the coolant pipeline layout, fixing the pipeline with bricks and supports, and installing rotatable claw-shaped metal fins driven by worm gears on the outside of the pipelines, combined with a light sensor to achieve adaptive switching of the day and night heat exchange mode; constructing a closed-loop cold plate dual-circulation liquid cooling system, dividing the cooling circuit into internal and external circulations for the energy storage tank, adapting to desert day and night conditions; using a host computer as the control core, controlling the switching of the diversion valve based on light sensing signals, and executing a graded temperature control strategy; establishing a multi-zone flow optimization algorithm, guided by minimizing the comprehensive temperature control target, weighted optimizing temperature control indicators, and iteratively calculating and allocating the optimal flow rate of the branches to achieve coordinated and efficient cooling of the system. This invention achieves energy-free cooling of the coolant, solving the problem of high energy consumption in desert energy storage cooling.

A smart ambient light-sensing book clip is disclosed, addressing the problem that existing book clips cannot monitor and indicate ambient light intensity in real time. The new design features an upper and lower clip pivotally connected by a pin; a torsion spring is sleeved on the pin; a light sensor detects ambient light intensity in real time, and its light intensity signal output is connected to the light intensity signal input of an MCU; the MCU compares the received light intensity signal with preset first and second light intensity thresholds, emitting a blue light band signal when the light intensity signal is less than the first threshold, a green light band signal when the light intensity signal is greater than the second threshold, and a red light band signal otherwise; a dimmable LED receives and displays the corresponding band signals emitted by the MCU. The beneficial effects include real-time monitoring of the reading environment, integrating ambient light sensing with the book clip structure, and providing immediate indication of ambient light intensity through color changes.

A display device includes display pixels each including a light emitting part including a light emitting element and a pixel driver applying a driving current to the light emitting element, and light sensing pixels each including a light sensing part including an optical element and a sensing driver, the sensing driver applying a sensing current to a sensing line according to a photocurrent of the optical element. The sensing driver includes a first sensing transistor controlling the sensing current flowing through the sensing line according to a voltage of a first electrode of the optical element, and a second sensing transistor initializing the first electrode of the optical element to a first level voltage. A channel layer of the first sensing transistor and a channel layer of the second sensing transistor are made of different materials.

A multi-channel optical pressure sensor is provided. The multi-channel optical pressure sensor includes at least one LED configured to generate light having a first spectrum and a second spectrum, a plurality of sensors including a first sensor coupled to the at least one LED via at least one first optical fiber and a second sensor coupled to the at least one LED via at least one second optical fiber, and a detector module coupled to first sensor and the second sensor. The detector module comprises at least one lens and an image sensor configured to sense light received from the at least one lens. The multi-channel optical pressure sensor further includes at least one hardware processor configured to determine based, at least in part, on the light sensed by the image sensor, a first pressure measured at the first sensor and a second pressure measured at the second sensor.

The application provides an electrically-driven phase change display array control structure, which mainly comprises a phase change display unit, a groove electrode, a thermal constraint isolation layer, a heat-conducting medium layer, a thermal via structure and an addressing cross electrode layer. The structure has the characteristics of high resolution, high stability and low energy consumption, opens up a new path for phase change display technology, and is expected to achieve industrialization breakthrough in the field of immersive light field display first. In addition to being applicable to the field of AR glasses and the like, it can also be used simultaneously in a memristor array to construct a next-generation intelligent display chip with light sensing and computing integrated functions. In specific implementation, design and adjustment can be made according to actual requirements.

The application provides an infrastructure surface crack feature enhancement method, medium and system, and belongs to the technical field of crack detection.The application obtains a corrected three-dimensional depth image by starting a line structured light sensing device and an inertial navigation device to scan an infrastructure surface, synchronously triggers a high-speed camera to collect a corresponding two-dimensional gray image by using an incremental encoder, establishes a stereo calibration model, and combines a sub-pixel level phase correlation algorithm to realize pixel level accurate alignment of the two-dimensional gray image and the three-dimensional depth image, extracts crack contour features and crack center lines, superimposes and fuses the crack contour features and the crack center lines to the three-dimensional depth image to generate a crack feature enhancement image, and inputs a multi-scale crack recognition model to recognize and classify, so that the technical problem that two-dimensional image texture features and three-dimensional depth data are difficult to realize pixel level accurate fusion, resulting in poor infrastructure surface crack feature enhancement effect, is solved.

The application provides a display module and a display device. The display module comprises a display panel and a light sensing device. The display panel comprises a light sensing area, and a first type of transistor is arranged in the light sensing area and participates in the generation process of a light emitting driving electric signal. The light sensing device overlaps the light sensing area in a direction perpendicular to the plane where the display panel is located. A floating gap exists between the light sensing device and the display panel, and an insulating part is arranged in the floating gap. The design of arranging the insulating part in the floating gap is conducive to eliminating the tendency of static charge accumulation caused by the small gap. In addition, considering that the insulating part has good insulation performance, the insulating part can block the accumulation process of static charge in the floating gap, thereby avoiding the formation of a strong interference electric field between the display panel and the light sensing device, and further reducing the risk of interference of the first type of transistor from the source, thereby ensuring the display effect of the display panel.

The utility model belongs to watch technical field, specifically is light sense color change temperature adjusts watchband, including watchband base A and watchband base B, the outside of watchband base A and watchband base B all is seted up with recess, the inner wall of recess all is seted up with T type clamping slot, the inside movable mounting of recess has flexible light sense color change pad, the four corners of flexible light sense color change pad outside all are fixedly installed with locating seat, the surface of locating seat is equipped with assembly seat, the both sides of assembly seat all are seted up with storage hole, the inside of storage hole is provided with spring. Through the structural design of T type clamping slot, flexible light sense color change pad, locating seat, assembly seat, storage hole, spring, extension rod, U type clamping block, realized the function of quick disassembly, can thus through the U type clamping block of contraction and rotation and embeds the different position inside T type clamping slot, realizes the disassembly to flexible light sense color change pad, thereby the subsequent individual disassembly individual module maintenance or replacement is convenient.

In a 3D imaging system based on optical triangulation, this provides indicators such as measured and / or estimated values ​​of intensity peak width in image data from an image sensor. [Solution] An arrangement and method performed by one or more devices for providing information indicating the intensity peak width of an intensity peak along a pixel line of a pixel containing an intensity peak. The intensity peak is formed from such reflected light sensed by an image sensor. A first value is calculated, including the magnitude of a lower-order Discrete Fourier Transform (DFT) coefficient for the pixel intensity value of the pixel along the pixel line containing the intensity peak (601). A second value is calculated, including the magnitude of another higher-order DFT coefficient for the pixel intensity value of the pixel along the pixel line containing the intensity peak (602). Information indicating the intensity peak width is provided based on the first and second values ​​(603).

The application relates to the technical field of sensors, in particular to a visual-tactile sensor based on a fiber array and a contact sensing method. The sensor comprises a base piece, an elastic body arranged on one side of the base piece, an image assembly arranged between the base piece and the elastic body, and a light sensing array. The sensor integrates the fiber array and the visualized elastic body in the same flexible structure, realizes high spatial resolution contact shape reconstruction, six-dimensional contact force estimation and micro sliding trend detection without significantly increasing the volume; the contact sensing method synchronously collects image information and fiber signals, extracts image spatial features and fiber time sequence features through a convolutional neural network, splices and fuses the features to output contact shape parameters, six-dimensional force / torque and sliding probability, and introduces a physical constraint loss function to impose monotonicity and consistency constraints on the prediction results, so that the contact sensing results conform to the physical law.

The present application relates to the technical field of optical sensing, and particularly relates to a temperature monitoring chip of a reflective asymmetric interference structure, which comprises an input waveguide, a Y-branch beam splitter, an asymmetric interference arm, a Y-branch combiner, an output waveguide and a total reflection structure; the asymmetric interference arm comprises an asymmetric sensing arm waveguide and a reference arm waveguide; the end of the input waveguide is connected to the head of the Y-branch beam splitter, the first end and the second end of the Y-branch beam splitter are respectively connected to the head of the sensing arm waveguide and the reference arm waveguide; the end of the sensing arm waveguide and the end of the reference arm waveguide are respectively connected to the first head and the second head of the Y-branch combiner; the total reflection structure is arranged at the end of the Y-branch combiner; the total reflection structure is used for reflecting the light wave output by the output waveguide, so that the light sensing arm waveguide and the reference arm waveguide propagate back and forth twice, thereby forming a double-path interference path and generating a fourth-order interference output. The present application effectively improves the temperature detection precision.

This invention provides a student mental energy replenishment and psychological prevention interactive system based on a smart homework system, comprising: a mental energy status light sensing unit, used to collect student status data and calculate and generate mental energy values ​​during the homework interaction process between the student and the smart homework system; a scenario-based interaction execution unit, connected to the mental energy status light sensing unit, used to trigger and execute corresponding light interactive mental energy replenishment operations based on the mental energy value and the current homework interaction scenario; and an early warning whistle unit, connected to the mental energy status light sensing unit, used to monitor the mental energy value according to preset rules, and push prompt information to the student's end and simultaneously send an anonymous early warning signal to the management auxiliary module when an early warning is triggered. The beneficial effect is that this invention can continuously replenish students' psychological energy through lightweight interaction and can routinely monitor and warn about their psychological state.

A display module includes a first filter layer, a light-emitting layer, a second filter layer, a photosensitive element, and a driving assembly. The light-emitting layer is disposed between the first filter layer and the second filter layer, the second filter layer is disposed between the light-emitting layer and the photosensitive element, and the second filter layer and the photosensitive element are opposite each other. The driving assembly drives the second filter layer to rotate, so that the second filter layer has a first state and a second state. In the first state, the first filter layer and the second filter layer constitute an ambient-light filter structure; in the second state, the first filter layer and the second filter layer constitute an ambient-light light transmission structure. A first light sensing amount of the photosensitive element is smaller than a second light sensing amount of the photosensitive element.

This utility model relates to the field of lighting control technology. To address the technical problem of poor control flexibility caused by the incompatibility of existing LED street light ambient lighting systems with ambient light control and remote management, this utility model discloses an IoT-based remote controller for LED street light ambient lighting, including an IoT module, an ambient light circuit, and a power control circuit. The power supply to the ambient light circuit is input through the power control circuit, and the selection of the two LED arrays in the ambient light circuit is controlled by the IoT module U13. The power control circuit controls the power supply status of the ambient light circuit based on the ambient light intensity and the control signal from the IoT module. By integrating the IoT module and a communication antenna, remote control of the LED street light ambient lighting system is achieved, improving the system's intelligent management level. A photodiode is introduced for ambient light sensing, combined with a multi-stage transistor logic control circuit and a thyristor as the main control switch, automatically cutting off the power supply path when the light is strong.

This application provides a light sensor readout circuit and chip for reading the current of a light sensing module. The light sensor readout circuit includes an oscillation module, a comparison module, a charge output module, and an integration module. The oscillation module outputs an oscillation signal, the comparison module compares a reference signal with the oscillation signal and outputs a comparison signal, the charge output module outputs a charge based on the comparison signal, and the integration module changes the oscillation frequency of the oscillation module based on the charge output by the charge output module. The amount of charge output by the charge output module is equal to the amount of charge passing through the light sensing module. This application can accurately measure the current of the light sensing module, overcoming the difficulty of detecting the small photocurrent generated by the light sensing module using conventional current detection methods.

The utility model discloses a kind of bag type packing material anti-continuous bag counting control device, including light sensing detection device, gravity sensor and the speed sensor being set on belt conveyor;The light sensing detection device includes light sensing generating device and light sensing probe receiving device;The light sensing generating device and light sensing probe receiving device are oppositely arranged;Belt conveyor both sides are respectively provided with the light sensing generating device and the light sensing probe receiving device;The bag type packing material anti-continuous bag counting control device further includes the counting controller for data processing according to light sensing detection device, gravity sensor and speed sensor;The belt conveyor is equipped with gravity sensor, and gravity sensor and light sensing detection device are at the same end of belt;The utility model realizes accurate judgment and accurate counting to bagged material continuous bag condition, solves the problem of inaccuracy of counting, high labor cost, low production efficiency caused by continuous bag when traditional bagged material loading counting.

The embodiment of the present application relates to the technical field of intelligence toy auxiliary equipment, and discloses an LED puzzle bean positioning indication method and system based on light sensing control, which comprises receiving puzzle bean pattern data, the puzzle bean pattern data comprising light-emitting sequence and light color information of each lamp bead; controlling at least one current lamp bead to emit light to generate light according to the light-emitting sequence and the light color information; the light is conducted from the side of the puzzle close to the LED array to the side of the puzzle facing outward through the transparent peg column to form a light spot, and the spatial position of the light spot and the color of the light spot are used to indicate the placement position of the corresponding color puzzle bean; the real-time illuminance at the current transparent peg column is monitored in real time according to the photosensitive sensor; when it is determined according to the real-time illuminance that the transparent peg column meets the preset shielding condition, a shielding confirmation signal is generated, the current lamp bead is controlled to be extinguished, and the next lamp bead is switched to emit light according to the light-emitting sequence and the light color information until the puzzle creation is completed. The method provided by the present application significantly improves the creation efficiency and accuracy.

A photodiode (112, 200, 400, 500) includes a semiconductor substrate (210) having a first surface (211) and a second surface (212, 412, 512), and a light sensing junction (220) located adjacent to the first surface (211). The second surface (212, 412, 512) is located opposite the first surface (211), and the second surface (212, 412, 512) includes a concave surface covering a recessed region (415, 515) in the semiconductor substrate (210).

The utility model provides a kind of self-adjusting headlight for riding safety, including lamp housing and the installation component being arranged below lamp housing;The lamp housing inside is equipped with light source component, light sensing element and control element, and the light transmission hole is opened in the upper surface of lamp housing, and the light sensing element is located just below the light transmission hole.The utility model is adjusted LED lamp pearl brightness by light sensing element real-time monitoring ambient light intensity and via control element;Through the mechanical locking structure of "clamping rod-clamping groove", combined with spring reset design, the multi-gear adjustment and quick locking of lamp housing angle are realized.Adjustment only needs single hand to pull up lifting handle to be unlocked, and it is automatically clamped after loosening, and it is simple and fast to operate;During adjustment process, the damping feeling produced by spring top bead and groove, it is convenient for accurate positioning required irradiation angle;After locking, mechanical occlusion is firm, can effectively resist the vibration impact in the process of riding, prevent lamp head angle accidental deviation, guarantee the stability of illumination direction.

A display device includes a display panel including a light-emitting pixel including a light-emitting element, and a light-sensing pixel including an organic photodiode, and configured to reset the organic photodiode to a reset voltage in response to a global reset signal, a data driver configured to provide a data signal to the light-emitting pixel, a scan driver configured to provide a scan signal to the light-emitting pixel and to the light-sensing pixel, and a readout circuit connected to the light-sensing pixel through a readout line, and configured to change at least one of the global reset signal or the reset voltage between a first sensing mode and a second sensing mode.

The utility model relates to the technical field of supporting frames, and particularly discloses a supporting frame for state detection of Beidou positioning equipment, which comprises a support body, a Beidou positioning device is movably arranged on one side of the top of the support body, and a light sensation monitor is arranged on one side far away from the Beidou positioning device; one side of the middle of the support body is fixedly connected with a connecting plate, the end of the connecting plate is fixedly connected with a boss, the bottom side of the end of the connecting plate is fixedly connected with a base, the bottom wall of the base is flush with the bottom wall of the support body, a driving assembly is arranged in the base, a rotating rod is arranged in the middle of the boss, and a protective film is wound around the middle of the rotating rod. A group of protective films which can be wound and contracted are arranged at the end part of the bracket body, and the protective films can perfectly cover the surfaces of the Beidou locator and the light sensation monitor after being stretched, so that the waterproof and dustproof effects are achieved, and the protective effect on the Beidou locator during outdoor use is improved; and the overall service life is prolonged.

This invention specifically discloses a test device for testing the reflective performance of traffic road markings. The device includes a test chamber, with an asphalt road sample placed at the bottom. Reflective road markings are applied to the road surface, and a drainage device is provided on the side of the asphalt road. An environmental simulation device and a road marking light-sensing test device are respectively installed above the road markings to be tested. The environmental simulation device consists of a heating device, a cooling device, a raindrop device, and a friction device, simulating the effects of different environmental and vehicle factors on traffic markings. The road marking light-sensing test device consists of a sliding block, a rotating shaft, an illumination lamp, and a retroreflection coefficient measuring instrument. This invention can simulate complex environments such as wet-dry cycles, wheel friction, and alternating hot and cold temperatures on the road markings on the asphalt sample. Finally, the data received by the retroreflection coefficient measuring instrument is used to analyze the reflective performance of the road markings, thus more realistically reflecting the reflective performance of traffic road markings.