38 results about "Light flicker" patented technology

The application relates to the field of image processing, in particular to an LED double-lamp recognition method and device based on a monocular camera, equipment and a medium. The method comprises the following steps: ensuring data real-time by collecting video frames at a preset frequency, accurately distinguishing constant light and flickering light spots by using bright spot recognition and feature screening, and effectively excluding environmental interference; accurately associating the double-lamp spots of the same vehicle in space and time by using an association matching technology, and improving the accuracy of target vehicle recognition; predicting the vehicle trajectory based on Kalman filtering and other algorithms, and comprehensively judging the line-crossing event by combining the line-crossing time difference and the speed condition, which not only improves the smoothness and anti-interference ability of vehicle trajectory prediction, but also enhances the reliability and accuracy of line-crossing detection, so that the method has high robustness and practicality in complex scenes.

The application discloses an infrared and visible light touch multi-source fusion robust recognition method, relates to the technical field of optical touch recognition, and comprises the following steps: collecting infrared data in a short time window to extract an environmental infrared interference fingerprint, and combining visible light fingertip information to generate infrared reliability and visible light reliability; selecting an emission code sequence and emission parameters according to the fingerprint, emitting in a verification time window, and obtaining a correlation demodulation quality index by matching the correlation demodulation; triggering a candidate touch area by visible light, emitting a one-time verification code sequence, and forming a touch verification record by the relevant matching of the candidate touch area at the receiving end; performing quality index, verification record and reliability gate control fusion decision, outputting a touch event through a hysteresis state machine, and closed-loop adjusting emission and receiving parameters; the method reduces false touch and missed touch under strong light saturation, lighting flicker and external infrared interference, enhances the anti-fraud touch resistance, and controls the delay.

A desk illuminating device with reduced sense of oppression and light flicker is provided. The desk illuminating device has a light source and a light guide portion including a light guide plate and guiding light emitted from the light source, wherein the light guide plate has a light incident surface for light from the light source to be incident, a first main surface that emits light incident from the light incident surface, and a second main surface opposite the first main surface, the first main surface is arranged substantially perpendicular to a setting surface of the desk illuminating device, when an axis that passes through the center of the first main surface and is perpendicular to the setting surface is set as a vertical axis, a direction parallel to the setting surface is set as 0° vertical in a surface that contains the vertical axis and is perpendicular to the setting surface, an angle upward compared to the parallel direction is set as a positive angle, and an angle downward compared to the parallel direction is set as a negative angle, an angle that becomes the maximum intensity in the light distribution of light emitted from the first main surface is 90° or more and less than 0°.

The invention relates to the field of image processing, in particular to an LED double-lamp identification method and device based on a monocular camera, equipment and a medium. The method comprises the following steps: acquiring video frames according to a preset frequency to ensure the real-time performance of data, accurately distinguishing normally-on lamp spots and flashing lamp spots by using bright spot recognition and feature screening, and effectively eliminating environmental interference; through an association matching technology, double light spots of the same vehicle are accurately associated in space and time, so that the accuracy of target vehicle identification is improved; the vehicle track is predicted based on Kalman filtering and other algorithms, and the line crossing event is comprehensively judged in combination with the time difference of line crossing of the two lamps and the speed condition, so that the smoothness and the anti-interference capability of vehicle track prediction are improved, the reliability and the precision of line crossing detection are enhanced, and the method has relatively high robustness and practicability in a complex scene.

The utility model discloses a grading alarm system of a mining intrinsic safety type laser methane sensor, which comprises a main controller, and a color alarm lamp module, a buzzer module and a display module which are electrically connected with the main controller, the main controller is used for identifying different states of the laser methane sensor, then controlling the color alarm lamp module and the buzzer module to perform different light flickering and buzzing, and displaying the different states of the laser methane sensor on the display interface. Different processing can be executed according to different states, various conditions such as faults of the underground laser methane sensor, excessive methane concentration and normal states can be accurately prompted through light of different colors, the conditions are displayed on a display interface, and compared with the condition that a common alarm system has no response or a red light is turned on when the fault occurs, the alarm system is more convenient to use. The situation that faults cannot be found in time or response confused with overhigh methane concentration is generated can be avoided, environment misjudgment is reduced, and the average maintenance time is shortened.

The embodiment of the present application discloses a kind of image parameter processing method, device, equipment and storage medium of shooting equipment.It is estimated that the instantaneous shooting picture brightness when shooting equipment is adjusted to target operating mode;Wherein target operating mode includes the opening flicker and / or closing flicker of the alarm light of shooting equipment;According to instantaneous shooting picture brightness, it is estimated that the exposure amount or gain when exposure stability is reached after shooting equipment is adjusted to target operating mode;When detecting that shooting equipment is operated in target operating mode, the image parameter corresponding to the exposure amount or gain of estimated exposure stability time is configured simultaneously to carry out image shooting.By the scheme of the present application, image parameters can be adjusted in time in the case that the opening flicker and closing flicker of alarm light lead to the rapid and obvious changes of picture properties in a short time, ensure that picture quality is rapidly stabilized after the change of alarm light, weaken the sudden change of picture brightness and noise caused by alarm light flicker.

The application provides a kind of test method, device, equipment and medium of instrument alarm light flicker state, it relates to automobile technical field, sends alarm instruction to the instrument to be detected, to make the alarm light of the instrument to be detected flicker according to set frequency;And the instrument to be detected is photographed, obtains the video file of the alarm light flicker;The video file is frame by frame disassembled into continuous multiple pictures, and each frame of picture is compared by template matching, determines the flicker state of the alarm light in each frame of picture;The flicker state of the alarm light in each frame of picture is counted, and the flicker frequency of the alarm light is calculated according to the statistical result, to realize the automatic determination of instrument alarm light flicker state.

The invention relates to the technical field of computer networks, in particular to an ONU (Optical Network Unit) gateway indicator light control method, device and equipment of a PON (Passive Optical Network) and a medium. The ONU gateway indicating lamp control method of the PON network can also be applied to a fiber to room (FTTR), an enterprise-level fiber to room (FTTR-B) and a broadband fusion terminal product, and the ONU gateway indicating lamp control method of the PON network can also be applied to the FTTR, the enterprise-level FTTR-B and the broadband fusion terminal product. Collecting environment data and a network data transmission state of an ONU gateway; based on a preset fusion rule, performing fusion processing on the environment data and the data transmission state to obtain fusion data; based on the fusion data, generating a flicker control instruction corresponding to an indicator lamp; and issuing the flicker control instruction to an indicating lamp corresponding to the ONU gateway, and controlling the indicating lamp to execute a flicker action matched with the flicker control instruction. The problem that in the prior art, an ONU indicator light flicker control mode is single and solidified is solved.

1. The name of the design product: music stick for walking. 2. The use of the design product: for playing music, radio, flashlight, mobile phone charging, color light flickering, increasing traffic safety when walking. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective drawing.

The application discloses a kind of external hanging temperature control sensing state display devices, it is related to temperature sensing state display technical field, including installation component, including support ring, the outside of support ring is fixed with connecting block, the side of connecting block is fixed with external hanging cambered surface ring, external hanging component, setting in the top of installation component.The application is cooperatively designed by installation component and external hanging component, effectively solve the defects that the state display of existing external hanging temperature control sensing state display device is not intuitive, disassembly and assembly convenience is poor, and operation safety is insufficient, on the one hand, discard the backward mode of single embedded sound and light flicker warning, additional quick separation disassembly type external hanging temperature sensing color-changing piece, by the color change of temperature sensing color-changing piece, real-time, intuitively show temperature control state, without close observation of staff, avoid missing state reminder due to visual fatigue, environmental interference, let staff quickly, clearly grasp real-time temperature control situation.

The invention provides a vehicle light control method and device, a vehicle and a medium, and is applied to the technical field of vehicles. The method comprises the steps that the illumination intensity of the environment where the vehicle is located is obtained; under the condition that the illumination intensity is smaller than a preset illumination intensity threshold value, responding to the received lamp turn-on signal, and obtaining the vehicle speed, the transverse acceleration, the transverse angular velocity and the steering angle of the vehicle; determining a light flicker frequency enhancement coefficient and / or a light brightness enhancement coefficient of the lamp based on the transverse acceleration and the transverse angular velocity; based on the lamplight flicker frequency enhancement coefficient and / or the lamplight brightness enhancement coefficient, the vehicle speed and the steering angle, the lamplight flicker frequency enhancement multiple and / or the lamplight brightness enhancement multiple of the lamp are / is determined; and controlling the lamp to work according to the lamplight flicker frequency enhancement multiple and / or the lamplight brightness enhancement multiple. Therefore, through multi-source information fusion, the lighting system can more accurately respond to complex working conditions such as emergency steering and high-speed lane changing, and the situation recognition accuracy of the warning signal is remarkably improved.

The utility model provides a quality detection device for lighting lamp production. The quality detection device comprises a bottom plate; and the limiting seat is fixedly installed at one end of the top of the bottom plate, and a limiting groove is formed in the limiting seat. According to the quality detection device for illumination lamp production, through mutual cooperation of the limiting seat, the first driving telescopic piece, the clamping plate, the fixing plate, the second driving telescopic piece, the moving plate, the mounting plate, the detection seat, the light shielding plate and other structures, when a lamp is detected, the light shielding plate can effectively block light emitted by the lamp, and the quality of the lamp is improved. A worker is prevented from being exposed to flickering light for a long time, the eyesight of the worker is protected, and the occurrence risk of eye diseases is reduced; and after detection is completed, the light shielding plate can move to the top of the detection seat along with the movable plate to shield the detection seat, so that an operator is prevented from accidentally touching the detection seat during idle detection, the occurrence of an electric shock accident is effectively avoided, and the personal safety of the detector is guaranteed.

The utility model relates to the technical field of refrigerator, concretely relates to a refrigerator with fault detection module. The scheme of the present application utilizes the connecting relationship of the interchamber illuminating lamp and control panel of refrigerator to realize low -cost fault indication function. When detecting the exception, the control signal generating unit generates the control signal of different frequency according to the level signal outputted by the signal processing unit, and the interchamber illuminating lamp is controlled by the drive unit to carry out fault indication with specific state. Through the intuitive mode such as light flicker frequency, brightness or color change, the user can quickly identify the refrigerator fault type, and the user can know the refrigerator condition in time, and the use experience of the user is improved. In addition, the sensor signal is converted into the specific state (such as flicker frequency, color change) of the illuminating lamp through the hardware circuit, without additional indicator light or display screen, the existing illuminating lamp can be directly reused, and the cost is reduced.

Various implementations disclosed herein improve the impression of a captured video by taking into account light-based flicker and / or other factors that affect the impression of the video captured by a wearable electronic device. Some implementations are used with a head-mounted device (HMD) that relays one or more front-facing camera feeds to a display panel in front of a user's eyes. Some implementations adjust the exposure of one or more cameras of such devices based on evaluating illumination in a physical environment captured by the camera in an image / video. The camera exposure may be adjusted (e.g., using discrete exposure levels that are even multiples of the light flicker rate) to reduce the impression of flicker from one or more light sources in the physical environment. Whether and how exposure is adjusted to reduce flicker may be based on environmental characteristics corresponding to visibility / interference of flicker from one or more light sources.

The utility model provides a lighting power supply system for amusement equipment, which relates to the technical field of lighting power supply and comprises a lighting power supply assembly, a clamping assembly is arranged on the side face of the lighting power supply assembly, a heat dissipation assembly is arranged on the lighting power supply assembly, and the lighting power supply assembly comprises a power supply box. And a plurality of power supply modules are arranged in the power supply box. According to the utility model, the threaded rod is manually rotated to drive the clamping plate to move, so that the clamping plate clamps a power supply line, and the friction pad is beneficial to increasing the friction force between the clamping plate and the power supply line, thereby ensuring the clamping stability, stably fixing the power supply line, preventing the line from loosening, and improving the working efficiency. Poor contact caused by line looseness is effectively avoided, stable transmission of current is guaranteed, flickering of lamplight, unstable brightness and the like are prevented, the soft cushion is beneficial to providing flexible support, and therefore rigid contact between a turning part of a power supply line and the clamping plate is avoided.

1. Name of the designed product: light flicker instrument (first view). 2. Use of the designed product: medical equipment for detecting vision. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The utility model discloses an advertising column facilitating replacement of display information, which belongs to the field of advertising and comprises a supporting bottom plate. Advertising column supporting columns are arranged on the supporting bottom plate in a supporting mode, and an advertising column frame is installed at the top ends of the advertising column supporting columns. The advertising column frame is a rectangular frame, side wall plates are installed at the upper end and the lower end of the advertising column frame in a protruding mode, the two side wall plates on the same side are vertically arranged in parallel, and two advertising board positioning assemblies are installed on the side face of each side wall plate. According to the advertising column facilitating replacement of the display information, the advertising column can be matched with the advertising board positioning assembly for adjustment, so that installation on the advertising column frame is rapidly achieved, the advertising board body is clamped and installed through the advertising board positioning assembly, overall operation is convenient, and use of installation tools is omitted; through the lamp strips arranged on the side face of the advertising column frame, the night visibility of the advertising board body can be improved through light flickering of the lamp strips, and the advertising board can attract attention of passers-by even in a low-light environment.

The utility model relates to LED packaging technical field especially a sealed protection type patch type LED light emitting diode, including fixed end electrically connected piece, LED wafer sets up on fixed end electrically connected piece, and the fixed end electrically connected piece and the welding end electrically connected piece are embedded in the one side surface position of the encapsulant, and the window is seted up on the encapsulant, and the LED wafer is exposed in the window middle position, and the gold wire both ends are connected with LED wafer and welding end electrically connected piece electricity respectively, and the light -transmitting body is installed in the edge position of window, and with the encapsulant constitutes sealed cooperation, can effectively avoid the light flicker, the brightness attenuation, the local extinguishing etc. phenomenon, and the luminous performance is more stable. Meanwhile, the short circuit failure caused by the welding spot corrosion aggravation is eliminated, the risk that the LED module burns is reduced significantly, the service life is greatly prolonged, the maintenance replacement frequency is reduced, and the use cost of each application field is reduced.

The invention provides a video-based illumination dynamic optimization method, a storage medium and electronic equipment. The method comprises the following steps: acquiring a video frame, dividing a picture of the video frame into a plurality of ROI regions, and acquiring region representative colors of the ROI regions; respectively identifying a caption area and a figure skin color area in the video picture, and respectively adjusting color weights of the caption area and the figure skin color area to obtain a first video picture; converting the region representative color of each ROI region in the first video picture into an HSV space, and performing smoothing and amplitude limiting processing on the HSV space to obtain a second video picture; and obtaining a current video scene mode, adjusting the second video picture according to a dimming parameter configured for the current video scene mode in advance, and generating and outputting a third video picture. According to the method, robustness, comfort and scene adaptability can be considered, and the problems of color cast caused by highlight subtitle / skin color interference, light flickering caused by rapid picture switching, scene adaptation delay and the like are effectively solved.

The embodiment of the invention discloses a UEFI BIOS (Unified Extensible Firmware Interface Basic Input / Output System) updating method and device, electronic equipment and a storage medium, and relates to the technical field of computer firmware updation.The method comprises the following steps: judging the availability of UART and I2C interfaces by sending a detection signal, and selecting an updating interface according to a preset priority; segmenting the BIOS update file into data frames with set sizes, transmitting the data frames to a receiving end frame by frame, and backing up current data; the receiving end verifies the data frame, if verification fails, retransmission is requested, interruption is triggered after timeout or the number of retransmission times exceeds the limit, and data is rolled back; in the updating process, abnormal conditions such as power failure, data verification failure and interface looseness are monitored in real time, updating is stopped once abnormity is detected, abnormal information is recorded, a data rollback mechanism is started, and meanwhile an alarm signal is sent to an administrator through a state feedback mechanism (such as LED indicator light flicker and an alarm instruction). According to the BIOS updating method and device, the limitation existing in a traditional updating mode is effectively solved, and the BIOS updating convenience and reliability are improved.

The utility model discloses an acrylic quicksand decorative vertical board ornament with lamplight, which comprises a support component made of an acrylic plate, a decorative component is arranged on the surface of the support component, a lamp strip is arranged on the support component, and a control component for controlling the lamp strip is arranged in an inner cavity of the support component. The supporting assembly is further provided with a dustproof assembly used for preventing dust of the local structure of the control assembly. Through cooperative use of the lamp strip and the control assembly, the atmosphere sense of the acrylic quicksand decorative vertical board ornament can be improved, and the display effect of the acrylic quicksand decorative vertical board ornament cannot be too monotonous; meanwhile, when the acrylic quicksand decorative vertical board ornament is used, the switch can be turned on and off by pressing the switch key for a long time, and the white light normally-on mode, the colorful lamp normally-on mode and the colorful lamp flickering mode of the lamp strip can be sequentially switched by pressing the switch key for a short time, so that the ornamental value of the acrylic quicksand decorative vertical board ornament is improved; the supporting assembly and the decoration assembly are matched with lamplight to be very suitable for the decoration field such as home furnishing or office propaganda.

The application relates to the technical field of computer equipment, and discloses a light flicker frequency determination method, device and system and computer equipment, wherein the light flicker frequency determination method comprises the following steps: acquiring a plurality of first pictures of light in a preset time period; selecting a picture combination in the plurality of first pictures, wherein the picture combination at least comprises two characteristic pictures arranged according to shooting time, one of the two characteristic pictures is a light-on picture, and the other is a light-off picture; and determining the flicker frequency of the light by using the picture combination. The light flicker frequency determination method can solve the problem that the flicker frequency of a hard disk light needs to be detected manually by acquiring a plurality of first pictures of light in a preset time period, selecting a picture combination in the plurality of first pictures, and then determining the flicker frequency of the light by using the picture combination.

The invention discloses an unmanned aerial vehicle cooperative control method and system based on intelligent perception, and belongs to the technical field of cooperative control. The system comprises an intelligent sensing module, an object analysis module, a collaborative planning module and a driving execution module. The intelligent sensing module collects image and position data through each unmanned aerial vehicle, and receives instruction parameters of the command center; the object analysis module dynamically selects and matches reference objects for the offline unmanned aerial vehicles according to the instruction parameters, establishes queues, establishes a following relationship through multicolor light flicker signals, and dynamically adjusts the number of the unmanned aerial vehicles in each queue and the following relationship in the flight process; the collaborative planning module is used for analyzing the obstacle distribution condition of the target direction space and planning a plurality of independent flight channels; calculating matching indexes between the queues and the independent flight channels, and planning distributed collaborative airways for the queues according to the matching indexes; and the driving execution module is used for driving the unmanned aerial vehicle queues to enter a planned air route in order to fly, and the unmanned aerial vehicles cooperatively execute inspection tasks.

The utility model discloses a lamp light flicker inspection device, which is formed by connecting a light sensing gun and an oscilloscope, the light sensing gun comprises a light sensing element and a pre-stage circuit, the light sensing element is in signal connection with the oscilloscope through the pre-stage circuit, the light sensing gun picks up light change signals of a detected light source through the light sensing element, and the detected light source is connected with the oscilloscope through the pre-stage circuit. And the optical signal is converted into a voltage signal through pre-stage circuit signal processing, and then the voltage signal is transmitted to an oscilloscope for processing. The utility model has the following characteristics: (1) naked eyes can be prevented from being in direct contact with the light stimulation of the LED, and the eyes of a tester are effectively protected; (2) the operation is simple, and the test can be carried out by any employee through slightly explaining and giving a standard; (3) standard measurement can be given, and qualification and disqualification are judged; (4) contact and connection with the lamp to be tested are avoided, and the test efficiency is high; (5) the cost is low, and the method is suitable for production and duplication; and (6) the frequency and fluctuation of the light at any moment can be observed by combining an oscilloscope.

The invention discloses an archive full-life-cycle one-stop optimization method, system and device and a medium, and relates to the technical field of data processing. The method comprises the following steps: firstly, acquiring identity information of a user, verifying an access authority level, and receiving an archive retrieval request when the authority meets a requirement; and querying a storage position according to the target file identification information, and scanning through an identification probe to obtain a specific position coordinate of the target file. And the system calculates the position difference between the target file and the surrounding files, determines the nearest navigation unit and sends an activation signal. And the navigation unit prompts a user of a pick-up position through flickering light and sound. After the user takes out the target archive, the identification probe detects that the code identifier disappears, and a lending record is automatically generated and stored in a preset archive circulation database. By implementing the technical scheme provided by the invention, the management efficiency of the full life cycle of the archives can be improved.

The utility model relates to the technical field of anti-theft labels, in particular to a photochromic intelligent anti-theft label device. The photochromic intelligent anti-theft label device comprises a bottom shell, a top cover, a light-transmitting plate and an installation structure, the top cover is installed on the top of the bottom shell, the light-transmitting plate is arranged on the right side of the top of the top cover in an embedded mode, the installation structure is arranged on the right side of the bottom shell, and the installation structure is used for installing the device on a commodity. The intelligent alarm further comprises a circuit board, an audible and visual alarm and a photosensitive sensor, the circuit board is fixedly connected to the inner bottom of the bottom shell, the audible and visual alarm is installed on the circuit board, the photosensitive sensor is installed at the inner bottom of the bottom shell, and the photosensitive sensor is electrically connected with the audible and visual alarm. The change of ambient light is detected in real time through the photosensitive sensor, and if the label is illegally disassembled, blocked or exposed to abnormal light, the photosensitive sensor triggers the audible and visual alarm to enable the audible and visual alarm to flicker light and give out alarm sound to remind surrounding personnel to pay attention, so that commodities are effectively prevented from being stolen.

The utility model discloses a health preserving pot with lamp organ key, including base, lamp organ key, hoop, the bottom of glass kettle body is equipped with heating disc to be equipped with glass kettle body top in base top, lamp organ key is located in the front end of base, and hoop is fixed in glass kettle body top through screw, and the one side of hoop is fixed with handle through screw joint, and heating disc provides heat source for liquid heating in the pot, and the lamp organ key of being equipped with the front end of base supports continuous pressing and triggers light flicker, first, the breakthrough is formed on interactive experience, and the user can control the rhythm of light through repeated pressing action, and the fragmented time of waiting for brewing drinks is converted into light interactive scene, breaks the dullness of mechanical waiting, makes the operation process more participation and interesting, secondly, the dynamic effect of light flicker can be used as the outlet of emotional release, and the user can relieve the pressure in the form of objectification through the linkage of pressing action and light and shadow change when anxious or tired, and strengthens the attribute of product "emotional accompaniment".

The application relates to the technical field of lamp testing, and particularly discloses a LED warning light flicker test system, which comprises a fault selection module, a pre-test preparation module, a failure test module and a report generation module. The fault selection module identifies sensitive nodes according to the topology and driving mode of an LED array, determines a test fault mode by combining the nonlinear synergistic effect of a composite fault, and makes a pre-judgment. The pre-test preparation module ensures that the warning light is preheated to reach thermal equilibrium and the power supply is stable before testing. The failure test module sequentially accesses the fault mode, detects whether the warning state jumps, matches the photoelectric parameters of the state after jumping and the normal state, and determines whether the non-expected warning is induced. The report generation module counts the fault modes that induce the non-expected warning and generates a report. The application can simulate local LED failure and determine whether the failure leads to non-instructional flickering or constant mode switching, thereby identifying the fault mode that induces the non-expected warning state jump, and is beneficial to the circuit design and reliability optimization of the warning light.

The invention discloses an LED lamp bead display control method and a display device, and relates to the technical field of display equipment, the method is used for controlling an LED lamp bead display device, and the method comprises the following steps: receiving a current adjusting signal through an adjustable potentiometer, and generating a dynamic brightness control instruction; according to the dynamic brightness control instruction, overall brightness adjustment is carried out on an RGBLED lamp bead array connected in series; receiving the trigger signal through a master control button, and generating an RGB channel switching instruction; and according to the RGB channel switching instruction, carrying out red, green and blue three-color independent lightening control on at least three lamp beads with different packaging specifications. According to the method disclosed by the invention, the compatibility of LED lamp bead control is improved, the LED lamp beads with various different packaging specifications can be compatible at the same time, driving circuits do not need to be arranged respectively, relatively good adjustment precision can be ensured, and the problem of light flicker during PWM dimming is inhibited.

An aim of the present disclosure is to provide a system for generating a log related to an onset event. The system includes an ambient light sensor to monitor a light flickering pattern and an eye tracking sensor to monitor an eye response of an eye. The system includes a computing unit to collect the light flickering pattern from ambient light sensor and the eye response from eye tracking sensor during a first time period. Computing unit receives at a first moment of time, first user feedback related to onset event, such as migraine episode. Computing unit utilizes collected light flickering pattern, collected eye responses and received user feedback as a log related to onset event.