216results about How to "Automatically adjust brightness" patented technology

The present invention discloses a screen brightness adjusting device applied to an electronic device. The screen brightness adjusting device comprises a flash memory, in which a prescribed brightness ratio, i.e. a prescribed brightness value ratio of the screen to the outside light, is stored; a screen brightness detection module used for detecting the present screen brightness of the electronic device; a light sensing module used for detecting the present brightness of the outside light; and a brightness comparing module, which is connected to the flash memory, the screen brightness detection module and the light sensing module and is used for calculating the present brightness value ratio of the screen to the outside light to obtain the present brightness ratio and compare with the present brightness ratio with the prescribed brightness ratio. If the present brightness ratio is larger than the prescribed brightness ratio, the comparison result is submitted to the electronic device. In addition, the present invention discloses a method for adjusting the screen brightness of the electronic device.

The invention discloses an adjusting method for backlight illumination, which comprises the following steps: A1. presetting a formula for computing the real visible light intensity by the ratio of infrared light intensity and environment light intensity, wherein the environment light comprises the visible light and the infrared light at the visible light regions; A2.inducing the environment light and the infrared light respectively, and computing the environment light intensity and the infrared light intensity; A3.computing the ratio; A4.computing the real visible light intensity according to the formula; and A5.controlling the duty cycle of pulse width modulation and adjusting the backlight illumination according to the real visible light intensity. The invention achieves the object of automatic adjustment of the backlight illumination, filtering the interfere of infrared light effectively, improving the reliability and safety of automatic adjustment of the backlight illumination, realizing the automatic adjustment of the illumination of liquid crystal screen in different illumination environments, and achieving the effect of energy saving.

The invention discloses an urban internet of things system based on an intelligent road lamp. The urban internet of things system comprises the intelligent road lamp, a road section controller and a control center, wherein the intelligent road lamp comprises a central control unit, a road lamp driving circuit, a first programmable logic controller (PLC) communication module, a power module, a lighting unit and a sensor; the sensor sends signals which are acquired to a central controller; the central controller processes the signals; the processed signals are sent to the road section controller through the PLC communication module and then sent to the control center; meanwhile, the control center sends a road lamp control signal, the road section controller transmits the road lamp control signal to the PLC communication module, and the PLC communication module sends the road lamp control signal to the central control unit; and the central control unit controls the road lamp driving circuit to drive the road lamp, so that control of the road lamp is accomplished. The urban internet of things system based on the intelligent road lamp has the advantages of low degree of destroy, wide coverage range, low construction cost, high degree of intelligence and the like.

The invention relates to a device and a method for supplementing modulated light for face recognition. The device comprises a photo sensor, a voltage-dividing resistor, a control circuit, an infrared light-emitting diode (LED) driving circuit, an infrared LED array, a voltage-stabilizing circuit, a crystal oscillating circuit and a reset circuit, wherein the photo sensor, the voltage-dividing resistor, the control circuit, the infrared LED driving circuit and the infrared LED array are electrically connected in turn; and the voltage-stabilizing circuit, the crystal oscillating circuit and the reset circuit are electrically connected with the control circuit respectively. The photo sensor detects the intensity of outdoor visible ambient light and the control circuit output pulse-width modulation pulses to control the infrared LED array, so that the infrared LED array emits infrared light having corresponding light intensity to that of the outdoor visible ambient light, a better light supplementing effect is achieved and face recognition performance is further improved.

The invention relates to an intelligent television. The intelligent television comprises a main control chip, a display screen and a camera which is electrically connected with the main control chip. The camera is a digital high-definition camera; the camera is arranged nearby the display screen and is arranged toward a watching region of the intelligent television; the camera is used for photographing a scene in front of the intelligent television in real time. The main control chip is used for calculating a watching distance of a television audience and environment brightness in real time according to a video image photographed by the camera; if the watching distance calculated by the main control chip becomes small, the intelligent television is controlled to reduce the display brightness; if the environment brightness calculated by the main control chip is reduced, the intelligent television is controlled to reduce the display brightness; conversely, if the environment illumination intensity is raised, screen brightness is automatically and properly adjusted. By adopting the intelligent television provided by the invention, the environment brightness and the watching distance of the audience are induced through a video and the brightness of the television is automatically adjusted, so that the health and eye-protection aims are realized.

The invention discloses an intelligent control strobe light supplementing method and a light supplementing device of a camera. The method includes that step one, a luminance signal of continuous snapshot images is calculated by the camera according to a snapshot signal to obtain an average luminance value, whether a light supplementing lamp is switched on or not is determined according to high front lighting luminance threshold value, if the average luminance value is higher than the threshold value, an on-off signal is output to the light supplementing lamp, a power source of the light supplementing lamp is automatically turned off, and if the average luminance value is lower than or equal to the threshold value, the power source of the light supplementing lamp is automatically turned on; and step two, when the light supplementing lamp is switched on, the average luminance value of the snapshot images is calculated again, if the average luminance value is in the optimal luminance range of the snapshot images, the luminance signal of the camera and a synchronization pulse signal of the light supplementing lamp are not required to be adjusted, if the average luminance value is lower or higher than the optimal luminance range of the snapshot images, the output increased or decreased luminance signal of the camera and the increased or decreased synchronization pulse signal of the light supplementing lamp are adjusted, and the adjusted average luminance value is in the optimal luminance range of the snapshot images. By means of the intelligent control strobe light supplementing method and the light supplementing device of the camera, the light supplementing effect and efficiency are improved.

The invention discloses a street lamp energy-saving management method and system. The method includes: detecting the road condition of the road where the street lamp is located; and adjusting the brightness of the street lamp according to the detected road condition. The system includes: a road condition detection module and a brightness adjustment module. The present invention can determine the real-time road conditions of the road where the street lamp is located and adaptively adjust the brightness of the street lamp through various methods of timing, detecting the flow of pedestrians and vehicles on the road where the street lamp is located, and detecting the light intensity on the road, so that the street lamp can be used normally and rationally. More effectively save the power consumption of street lamps.

The present invention discloses an HUD brightness automatic regulation device and method in the automatic control technology field. The device comprises: a horizontal light sensor and a vertical light sensor, wherein the installation directions of the horizontal light sensor and the vertical light sensor are mutually perpendicular and the measuring ranges of the horizontal light sensor and the vertical light sensor are the same, and the vertical light sensor is provided with a light filter membrane; a microprocessor, wherein the microprocessor comprises an A/D processing module, a data processing module and a PWM module, the horizontal light sensor and the vertical light sensor are configured to convert the detected light brightness signals to digital signals through the A/D processing module and then transmit the digital signals to the data processing module, and the data processing module performs processing and calculation to obtain PWM digital quantity applied to the PWM module; the LED module, wherein the LED module comprises a LED driver and a LED lighting chain, and the PWM module controls the brightness of the LED lighting chain through the LED driver; an external rotary knob configured to transmit the brightness regulation signals to the A/D module for manual regulation of the brightness. The light regulation range is wide, and the light regulation is more smooth.

The invention provides a terminal adjusting method, a terminal adjusting device, and a terminal, wherein the terminal adjusting method comprises the following steps: collecting iris image information of users; determining the current environment brightness of the terminal according to the iris image information; adjusting the brightness of a display screen of the terminal according to the current environment brightness. Through the technical scheme provided by the invention, the brightness of the display screen of the terminal can be adjusted automatically, therefore, different sensitizing requirements of different users can be met to improve user experience.

The invention provides a system for automatically adjusting the screen brightness. The system comprises an extracting module used for extracting the current screen brightness value of a display screen and the illuminance value in the current environment; a de- noising module used for removing noises in the current environment according to the illuminance value in the current environment; a normalization module used for performing the normalization treatment on the current screen brightness value of the display screen and the illuminance value in the current environment, and also performing the normalization treatment on an illuminance/screen brightness mapping table stored in a memory; and a display module used for controlling the screen brightness value of the display screen to be corresponding to illuminance value in the current environment according to the illuminance/screen brightness mapping table stored in the memory. In addition, the invention provides a method for automatically adjusting the screen brightness. According to the technical scheme of the invention, the screen brightness value of the display screen is automatically adjusted to conform to user preferences in accordance with learning results.

The invention provides a method for remotely and wirelessly controlling an illumination end. The operating environment adopts 220 V alternating current of a family circuit, and mainly comprises an illumination end and a remote control end, wherein the illumination end mainly comprises a single-chip microcomputer, a wireless receiving and transmitting module, an optical inductor, a driving circuit and a filament lamp; the remote control end mainly comprises a single-chip microcomputer, a wireless receiving and transmitting module and a serial module; one remote control end can correspond to a plurality of illumination ends; and a user can remotely turn on or turn off a lamp, remotely control the luminance of the illumination lamp, and obtain the luminance state of the lamp in real time. Simultaneously, the optical inductor module in the illumination device can induce the intensity of peripheral light and automatically adjust the illumination. By connecting the remote control part with a central server in intelligent home environment, and by being matched with corresponding software on the central server, the invention can be served as intelligent equipment to be added to the intelligent home environment, and more conveniently and naturally provide service for the user.

The invention relates to an displayer illumination automatic adjusting circuit for adjusting the illumination of the displayer automatically, which comprises the following parts: a voltage adjusting circuit with a light source detecting element which detects the illumination of outer environment and outputs a voltage signal changing with the outer environment illumination through the light source detecting element; and a pulse width modulating signal generating circuit which is used for receiving the voltage signal and outputting the pulse width modulating signal changing with the voltage signal to the illumination control circuit of the displayer for controlling the illumination of the displayer. The illumination automatic adjusting circuit of displayer can automatically adjust the illumination of the displayer with the change of the environment illumination.

The invention provides a power saving health desk lamp for solving the problem that when reading under a prior desk lamp for a long time, eyes can be tired to damage eyesight. The desk lamp includes a desk lamp body 1 and a lamp cover 2 which is provided with a power saving daylight lamp 3 and an incandescent lamp 4. The desk lamp can adjust light automatically, which is provided with a default lighteness parameter and a colorimetric parameter before leaves factory, a sensitization element 6 automatically measures the lighteness parameter and the colorimetric parameter in a desk lamp light covering region when the desk lamp is used; the lighteness of the daylight lamp and the incandescent lamp can adjust automatically to get proper lighteness and chrominance needed by readers. The desk lamp of the invention overcomes respective defect of daylight lamp and incandescent lamp light source and combines advantages thereof together to make the desk lamp emit comfortable light for eyes, can protect eyesight, also can save electric energy through an automatic light adjustment mode.

The invention discloses an intelligent classroom space purification control device based on the Internet of Things. The classroom is equipped with an information collection unit for real-time monitoring of indoor environment and illumination, a controller for receiving and collecting information and performing signal processing, and a controller for executing The execution unit of the control command given by the controller; the output end of the information collection unit is connected to the input end of the controller, and the output end of the controller is connected to the input end of the execution unit; the execution unit includes TiO Photocatalyst disinfection device, ultrasonic mist device, fresh air filtration temperature control system, and illuminance adjustment device; the output ends of the controller are respectively connected to the input ends of the TiO2 photocatalyst disinfection device, ultrasonic atomization device, fresh air filtration temperature control system, and illuminance adjustment device. The invention can monitor the classroom environment and temperature and humidity in real time, regularly sterilize the classroom, adjust the indoor air environment quality, and create an excellent and comfortable learning environment for students.

The invention provides an automobile and a system and method for regulating luminance of a display screen. The system comprises a display device and a sunshine sensor, wherein the sunshine sensor outputs indication signals representing illumination intensity to the display device in accordance with the illumination intensity of the sunshine, thus the display device can regulate the luminance of the display screen in accordance with the indication signals. By using the system, the luminance of the display screen can be regulated automatically in accordance with the intensity of the sunshine in real time, thus avoiding the problem that a driver can not see contents in the display screen under the condition of strong sunshine, and preventing the serious excitation for the eyes of the driver and image formation on a windscreen under the condition of the weak sunshine, thereby strengthening the driving safety.

The invention relates to the technical field of accessory devices for concrete separation and particularly relates to waste concrete separation equipment for concrete processing. The height of a workbox can be conveniently adjusted according to the needs of workers so as to improve the adaptability; the work box can be conveniently rotated so as to reduce the use limitation; and furthermore, thework box can be conveniently moved so as to improve the practicability. The equipment comprises a top plate, a bottom plate, four groups of brackets and the work box, a blocking cover is arranged at an access hole, and the equipment also comprises a motor, a transmission shaft and a pulverizer; the four groups of brackets respectively include inserting columns, inserting pipes, limiting columns, two groups of limiting springs and two groups of limiting blocks; the top plate comprises an upper plate body and a lower plate body and also comprises a rotating shaft, two groups of support columns and two groups of pulleys; and the equipment also comprises four groups of bolts, four groups of nuts, four groups of support legs and four groups of rotating columns, wherein rolling wheels are arranged at one ends of the four groups of rotating columns, and suction cups are arranged at the other ends of the four groups of rotating columns.

The invention discloses a self-adaptive projector based on image analysis. The self-adaptive projector comprises a camera, a horizontal adjusting motor, a vertical adjusting motor, a brightness adjusting module and a control module, wherein the control module is respectively and electrically connected with the camera, the horizontal adjusting motor, the vertical adjusting motor and the brightness adjusting module; the camera is used for shooting a projection picture of the projector; the horizontal adjusting motor and the vertical adjusting motor are used for adjusting a horizontal projection angle and a vertical projection angle of the projector; the brightness adjusting module is used for adjusting the projection brightness of the projector; the control module is used for controlling the working of each of the horizontal adjusting motor, the vertical adjusting motor and the brightness adjusting module according to the received projection picture image. The projector disclosed by the invention is simple in structure, convenient for use, capable of automatically adjusting the picture and guaranteeing the optimal angle of the picture, and capable of automatically adjusting the brightness so that the comfort level of human eyes can reach the maximum.

The invention discloses a multifunctional following table lamp. A support of the table lamp is connected with a lampshade of the table lamp through a motor, so that the lampshade of the table lamp can rotate by 360 degrees under driving of the motor, a control circuit comprises a first relay, a second relay, a brightness adjusting circuit, a human infrared radiation and luminosity detection circuit, a single chip microcomputer circuit module, a human position detection circuit and a motor driving circuit, and the human infrared radiation and luminosity detection circuit judges whether a person enters the range of the table lamp or not and light intensity at the moment to control on and off of the first relay to turn on and turn off a main lighting circuit of the table lamp. The table lamp is simple in structure and ingenious in design and has the advantages that when the person stays in a room and outside light intensity is weak, the table lamp can be automatically turned on, the table lamp can be automatically turned off when the person leaves the room, energy is saved, the table lamp can correct sitting postures and prevent shortsightedness and can be automatically adjusted/turned, and the brightness of the lamp can be automatically adjusted.

The embodiment of the invention provides a brightness adjusting device and a method thereof and a display, which belong to the technical field of liquid crystal display, and by which the automatic adjustment of the brightness of a display screen can be realized simultaneously according to the brightness of the surrounding environment of the display screen and the distance between an eyeball of a user and the center of the display screen, thereby improving the accuracy of brightness adjustment of the screen of a display device, and increasing the display efficiency of the display. The brightness adjusting device comprises a distance acquisition device, a brightness measuring device and a brightness adjusting device, wherein the distance acquisition device is connected with the first end of the brightness adjusting device; the brightness measuring device is connected with the second end of the brightness adjusting device; the distance acquisition device is used for acquiring the distance between an eyeball of a user and the center of a display screen of a display device; the brightness measuring device is used for acquiring the brightness value of the external environment of the display screen of the display device; and the brightness adjusting device is used for adjusting the brightness of the display screen of the display device according to the distance between the eyeball of the user and the center of the display screen of the display device and the brightness value of the external environment of the display screen of the display device.