54 results about "Light flicker" patented technology

The invention discloses an equipment fault detection method based on indicator light flicker detection, and relates to the technical field of image processing, and the method comprises the following steps: collecting videos or pictures of equipment by using a high-definition camera; carrying out picture fusion on the collected videos or pictures in a pixel space by utilizing a picture fusion method; performing indicator light detection on the fused picture by using the target monitoring model to obtain a position frame and color information of an indicator light; according to the detected indicating lamp position frame, image blocks corresponding to the indicating lamp position frame are extracted from the multiple pictures to be processed, and the flicker state and the flicker frequency of the indicating lamp are obtained; carrying out fault judgment and alarm according to a detection result; compared with the existing fault detection method, the method has the advantages that the flicker information of the index lamp of the equipment can be obtained, and the equipment fault detection or alarm basis provided based on the flicker information is more accurate, so that the accuracy of equipment fault detection can be improved.

The disclosure provides an MR device and a method for eliminating image flicker in an MR device. The method includes: in response to a presence of ambient light flicker that triggers human eye perception, determining a flicker frequency of the ambient light flicker; determining whether the display module has a specific operating frequency according to a working status of the MR device; in response to having the specific operating frequency and a mismatch between the specific operating frequency and the flicker frequency, controlling the display module to display target images at the specific operating frequency at all times, and at least dynamically adjusting a target shooting frequency of the camera module according to the flicker frequency and the specific operating frequency; and controlling the camera module to obtain original images at the target shooting frequency, and the target image is obtained at least based on the original image.

The invention provides a humidity visualization device, an air conditioner indoor unit and a control method. The humidity visualization device comprises a water pan, a water storage device, a breathing lamp strip and a controller, and condensate water generated by an evaporator and collected by the water pan can enter the water storage device; a water level sensor is arranged in the water storage device and used for detecting the water level in the water storage device; the breathing lamp strip is arranged on the front side of the machine shell, the controller can adjust light parameters of the breathing lamp strip according to changes of the water level in the water storage device, and the light parameters comprise at least one of the light color, the light flicker frequency and the light brightness of the breathing lamp strip and the effective light emitting length of the breathing lamp strip; the water level of the water storage device is visually displayed through the breathing lamp belt instead of traditional digital display; a user can visually perceive the current humidity state and the dynamic change trend, the problems that digital information is not visual, difficult to understand and lack of dynamic feedback are solved, and interaction friendliness is improved.

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.

A method and assembly for capturing a scene of interest with reduced errors due to light flicker is provided. The present invention relates to a method for reducing light flicker in a scene of interest imaged by an event-based camera (7), the event-based camera (7) comprising a plurality of pixels, The imaging behavior of the plurality of pixels is influenced by a pixel parameter set comprising at least one exposure time parameter and / or at least one digital accumulation parameter, and the method comprises: 1) operating an event-based camera (7) with assigning a plurality of first values ​​to the pixel parameter sets, operating an event-based camera (7), the operation (1) providing a plurality of events (2) generated by the event-based camera (7); 2) reconstructing (3) an image based at least on the generated plurality of events (2); 3) determining (4) at least one region in the reconstructed image, wherein the determined at least one region corresponds to at least one spatial region in the scene of interest comprising at least one flickering light source (8, 9) active during the operation of the event-based camera (7); determining (4) at least one region within the reconstructed image; 4) determining a subset of pixel parameters (5) of the set of pixel parameters, the subset of pixel parameters affecting the imaging behavior of a plurality of pixels within the determined at least one region; assigning (5) second values ​​to the determined subset of pixel parameters, the second values ​​being determined to reduce flicker within pixels of the determined at least one region; and updating (5) the first values ​​assigned to the subset using the second values; and 5) further operating (6) the event-based camera (7) using the updated pixel parameter set; The invention also relates to an assembly and a vehicle comprising this assembly.

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 utility model discloses a multifunctional connecting structure of a luminous lamp strip of a goal and a net, relates to the technical field of sports equipment, and aims to reasonably use power resources, improve the adaptability of the lamp strip to different power supply sockets, guarantee the normal use of the net at night and improve the service life of the net. According to the technical scheme, the multifunctional connecting structure comprises a net frame and a lamp strip, the net frame comprises a bottom column, a stand column, a cross beam, a surrounding net and a column cover, and the lamp strip comprises a lamp bead string, a waterproof shell, a lamplight controller and a power plug set. The light controller is provided with a light enhancement key, a light weakening key, a multicolor conversion key, a light flickering key and a toggle switch, the power plug group comprises a converter, a straight plug, a USB plug and a DC plug, the structure performs conversion control on the light effect of the lamp strip, and the toggle switch key is adopted to be distinguished from the keys, so that the light effect of the lamp strip is greatly improved. The power supply can be controlled by directly shifting the switch key without watching an indication pattern of the key on the light controller at night, and various power supply connecting modes are combined on the lamp strip, so that the lamp strip can be adapted to sockets of various models to provide power for the lamp strip, and the applicability of the lamp strip is improved.

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.

Apparatuses and methods for flicker detection are described. Some aspects are directed to an optoelectronic device comprising a flicker sensor and a processor. The flicker sensor includes a plurality of photodetectors and readout circuitry. The flicker sensor is configured such that each photodetector of the plurality of photodetectors has a different field of view of a plurality of fields of view. The readout circuitry outputs a digital signal corresponding to a field of view of the plurality of fields of view. The processor of the optoelectronic device is configured to sample the plurality of photodetectors using the readout circuitry, and detect flicker in the one or more of the plurality of fields of view based at least in part on the sampling of the plurality of photodetectors.

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 relates to a photographing method and device and a storage medium. The photographing method comprises the following steps: in response to determining that the electronic equipment performs zero-delay motion photographing, generating an image cache sequence, the image cache sequence comprising continuous image frame subsequences which are arranged in sequence; the continuous image frame sub-sequence comprises a first number of first image frames and a second number of second image frames which are arranged in sequence, and the first number is greater than the second number; the first image frame is obtained through exposure based on first exposure time, and the first exposure time is an integral multiple of a period corresponding to the ambient light flicker frequency; the second image frame is obtained through exposure based on second exposure time, and the second exposure time is the exposure time meeting zero-delay motion photographing; and performing preview display based on the first image frame, and generating a photographing image of zero-delay motion photographing based on the second image frame. According to the invention, the electronic equipment can eliminate the stroboflash phenomenon of the photographed image in the zero-delay motion photographing process with relatively low power consumption.

An optical sensor including a photodiode, a waveform conversion circuit, a pixel array, and a processor. The photodiode detects ambient light flicker to generate a sine wave. The waveform conversion circuit converts the sine wave into a square wave. The processor is used to count the square wave using a sampling frequency, and determine whether the ambient light flicker is detected well based on the count value of each square wave and the change in the count values of multiple square waves within the counting period, and decide whether to adjust the acquisition phase of the image frame accordingly.

This item is a network strobe speaker that flashes various colors and is used as an alarm system that has both a visual effect of flashing lights in a circular area around the speaker and an audio effect.

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.