4894 results about "Fog" patented technology

A control system for automatically detecting moisture on the windshield of a vehicle. The automatic moisture detecting system includes an optical system for imaging a portion of the windshield on to an image array sensor, such as a CMOS active pixel sensor. The voltages of each of the pixels which represents the illumination level is converted to a corresponding gray scale value by an analog digital converter. The gray scale values corresponding to the image are stored in memory. The spatial frequency composition of the gray scale values are analyzed to determine the amount of rain present. In order to provide a control signal to control the operation of the windshield wipers of the vehicle as a function of the amount of moisture present. The system is also adapted to detect the level of fog both on the interior of the windshield as well as the exterior of the windshield. By providing a system for automatically detecting the presence of fog on the interior and exterior of the windshield, serious performance limitations of known automatic rain sensors are eliminated.

An artificial cigarette, inhaler or other nebulizer device may include a housing, an air passage into the housing, a fog generator chamber within the housing connected to the air passage, a liquid source connected to the fog generating chamber, and a fog generator within the fog generating chamber for receiving liquid from the liquid source and creating an aerosol. The fog generator may be an ultrasonic nebulizer and / or a pneumatic nebulizer.

An artificial cigarette, inhaler or other nebulizer device may include a housing, an air passage into the housing, a fog generator chamber within the housing connected to the air passage, a liquid source connected to the fog generating chamber, and a fog generator within the fog generating chamber for receiving liquid from the liquid source and creating an aerosol. The fog generator may be an ultrasonic nebulizer and / or a pneumatic nebulizer.

The invention discloses an active safety type assistant driving method based on stereoscopic vision. An active safety type assistant driving system comprehensively utilizes an OME information technology, consists of a stereoscopic vision subsystem, an image immediate processing subsystem and a safety assistant driving subsystem and comprises two sets of high resolution CCD (charge-coupled device) cameras, an ambient light sensor, a two-channel video collecting card, a synchronous controller, a data transmission circuit, a power supply circuit, an image immediate processing algorithms library, a voice reminding module, a screen display module and an active safety type driving control module. According to the active safety type assistant driving method, separation lines and parameters such as relative distance, relative speed, the relative acceleration and the like of dangerous objects such as front vehicles, front bicycles, front pedestrians and the like can be accurately identified in real time in sunny days, cloudy days, at nigh and under the severe weather conditions such as rain with snow, dense fog and the like, so that the system can prompt a driver to adopt countermeasure through voice and can realize automatic deceleration and emergency brake at emergency situation, thereby ensuring safe travel in a whole day.

[OBJECTS AND PROBLEMS] Relating to a mist generator capable of emitting any of chemical substances used in life, such as perfumes, pharmaceuticals and pesticides, in the form of fog or vapor. An object of the invention is to attain means for efficiently atomizing liquid, means for easily and rapidly switching the type of chemical substance emitted and a compact apparatus of good maintainability. [MEANS FOR SOLVING PROBLEMS] An apparatus comprises an ultrasonic transducer; an ultrasonic propagation medium disposed so as to fill a plane of vibration of the transducer; liquid retaining means disposed so as to be in contact with an end face of the medium; and an ultrasonic focusing reflecting mechanism (concave reflection mirror) disposed in an ultrasonic propagation path, thereby the apparatus attains discharging into air and atomization of the liquid by means of ultrasonic waves. Atomization efficiency is enhanced by the use of an ultrasonic reflection tube, and mist emission is carried out. Use is made of a compact liquid container equipped at its bottom with an ultrasonic transmission membrane. Various types of liquids can be atomized by changing the direction of ultrasonic course. Mist can be emitted by means of a thermal current as heating means. IC tag is attached to the liquid retaining means or liquid injection means.

The invention discloses a corrosion-resistant magnesium aluminum alloy chromium-free passivation solution, which comprises the following components: 10-40 parts of water-base resin, 1-10 parts of nanoparticle sol, 1-10 parts of fluoric-containing acid, 1-5 parts of fluoric acid-containing salt, 1-5 parts of a rare earth catalyst, 1-10 parts of a silane coupling agent, 1-5 parts of a corrosion inhibitor, 1-2 parts of a complexing agent and 40-70% of water. The corrosion-resistant magnesium aluminum alloy chromium-free passivation solution does not contain chromium and other toxic and harmful substances, meets the ROHS environmental protection law of the European Union, and meanwhile, can form an organic and inorganic composite passivation film and a thin film on the surface of a magnesium aluminum layer, and the formed composite passivation film has an excellent physical property and corrosion resistance, and has higher corrosion resistance and long salt fog time, so that the corrosion resistance of a magnesium aluminum alloy plate is better improved.

The present invention is a method and apparatus that provides detection, characterization, and intuitive dissemination of targets. This disclosure combines improvements to ultra-wideband (UWB) sensing and machine target characterization with a means to convey data in a format that is quickly and readily understood by practitioners of the technology. The invention is well suited for Situational Awareness (SA) support in areas that are occluded by rain, fog, dust, darkness, distance, foliage, building walls, and any material that can be penetrated by ultra-wideband RF signals. Sense Through The Wall (STTW) performance parameters including target range, stand-off distance, and probability of detection are improved herein by combining a dynamically positioned sliding windowing function with orthogonal feature vectors that include but are not limited to time amplitude decay, spectral composition, and propagation time position in the return signal data. This invention is particularly useful for STTW and SA applications including urban combat, law enforcement, fire protection, transportation security, and homeland security. The invention can also be used to detect objects that are concealed by clothing, debris, and other non-metallic materials.

A device is configured for white balancing a medical videoscopic camera system prior to videoscopic medical procedures, as well as optionally simultaneously or non-simultaneously applying a fog-prohibiting agent to the distal lens of a medical videoscope such as an endoscope or laparoscope. The device combines a white balancing mechanism, protective mechanism, and defogging mechanism in one simple easy to use device.

The invention discloses a miniature robot capable of walking and cleaning on vertical surfaces such as a glass curtain wall and a ceramic outer wall. The robot walks through a track provided with a sucker, the track sucker is connected with a vacuum pump, and local vacuum is formed by air extraction so as to generate negative pressure; the sucker is of a specially designed structure with an air valve to exhaust through lever action; a steering sucker is arranged in the middle of a robot chassis, a motor controls a ball screw to operate so that a robot vehicle body rotates around the axis of the steering sucker so as to steer; an ultrasonic detection and feedback device is arranged at the front end of the robot vehicle body to guarantee the robot to measure and avoid barriers in real time during the walking process; and a fog-shaped spraying device, a drum brushing and washing device and a scraping plate washing device are installed on the robot vehicle body to clean the wall surface during the walking process of the robot. By means of the multi-technology multi-science combination, namely combination of a robot system function, a mechanical structure, a movement mechanism, an electronic circuit, a sensing detection, a program control and the like of the robot, the robot can reliably walk and efficiently clean on vertical surfaces such as the glass curtain wall and the ceramic outer wall.

A low cost, all weather, high definition RF radar system for an autonomous vehicle is described. The high definition RF radar system generates true target object data suitable for imaging, scene understanding, and all weather navigation of the autonomous vehicle. The high definition RF radar system includes a pair of independent orthogonal linear arrays. Data from both linear arrays is fed to a processor that performs data association to form true target detections and target positions. A Boolean association method for determining true target detections and target positions reduces many of the ghosts or incorrect detections that can produce image artifacts. The high definition RF radar system provides near optimal imaging in any dense scene for autonomous vehicle navigation, including during visually obscured weather conditions such as fog.

A horizontal navigation system aided by a carrier phase differential Global Positioning System (GPS) receiver and a Laser-Scanner (LS) for an Autonomous Ground Vehicle (AGV). The high accuracy vehicle navigation system is highly demanded for advanced AGVs. Although high positioning accuracy is achievable by a high performance RTK-GPS receiver, the performance should be considerably degraded in a high-blockage environment due to tall buildings and other obstacles. The present navigation system is to provide decimetre-level positioning accuracy in such a severe environment for precise GPS positioning. The horizontal navigation system is composed of a low cost Fiber Optic Gyro (FOG) and a precise odometer. The navigation errors are estimated using a tightly coupled Extended Kalman Filter (EKF). The measurements of the EKF are double differenced code and carrier phase from a dual frequency GPS receiver and relative positions derived from laser scanner measurements.

A method of removing fog from the images / videos independent of the density or amount of the fog and free of user intervention and a system for carrying out such method of fog removal from images / videos are disclosed. The removal of fog from images and video involve airlight estimation and airlight map refinement based restoration of foggy images and videos. Advantageously, removal of fog from images and videos of this invention would require less execution time and yet achieve high perceptual image quality with reduced noise and enhanced contrast. The proposed method is adapted for RGB Colour model and advantageously also for HSI colour model involving reduced computational requirements and be user friendly and supposed to have wide application and use.

A defogging device for a surveillance camera has a heating element, a circuit board and a power cord. The heating element is mounted over the lens of the surveillance camera. The circuit board compares ambient temperature to a preset temperature, activates the heating element and has a power input terminal, a power output terminal and a temperature sensor. The temperature sensor is mounted between the power input terminal and the power output terminal and senses ambient temperature. When the ambient temperature is above the preset temperature, the circuit board activates the heating element. The power cord is connected to the circuit board and the heating element and transmits power to the heating element from the circuit board. By activating the heating element during periods of cold ambient temperature, the defogging device removes fog and frost from or keeps fog and frost from forming on the lens of the surveillance camera.

The present invention discloses a safety goggles structure having a frame connecting portion, a frame latch portion, two frame snap-in portions, a lens connecting portion, a lens latch portion, two lens snap-in portions and two elastic buckles to mount a lens onto a frame for achieving the effect of securely connecting the frame and the lens or improving their connecting stability. With an upper guide channel slantingly and concavely disposed on the frame and a lower guide channel vertically up-and-down and concavely disposed on the frame, gases and liquids can pass through without producing fogs and accumulating liquid on the lens, and foreign substances cannot enter into the safety goggles easily to cause any safety issue. With the design of an upper gutter on the frame, liquid splashed onto the safety goggles can flow along either side of the upper gutter to prevent liquid accumulation or leaking.

A sunscreen formulation and a method of dispensing the sunscreen formulation is described in which the sunscreen formulation in the form of an emulsion includes one or more sunscreen agents and one or more propellants contained within an aerosol can such that the sunscreen composition is dispensed from the aerosol can by the propellant(s) in the form of a fine mist spray or fog allowing a uniform film of the sunscreen composition to be applied to the skin of a person to provide a uniform form of protection so as to overcome the harmful effects of the suns rays on the skin.

An innovative configuration of Miniaturized Smart Self-calibration EPD for mortar applications, as the azimuth / heading and elevation measurement device. This innovative EPD configuration uses only two FOGs or DTG and accelerometers and it is self-contained. This leads to a new EPD implementation that produces a small and light device with lower cost and adequate accuracy for the small dismounted mortar applications.

A cooking device includes a base, a housing, a lid, a detection module, a control module and an exhaust module. The detection module includes an image detection sensor arranged on the lid and configured to take an image of a cooking process. The control module includes a processor connected with the detection module and arranged in the base or the housing, and a wireless unit configured to perform information interaction with a portable electronic device to transmit cooking parameters including the image out of the cooking device. The exhaust module includes an air-filled element, an air-extraction element, an inlet passage and an exhaust passage. The inlet passage is disposed on the lid, the air-filled element is disposed on the inlet passage, the air-extraction element is disposed on the exhaust passage and used to exhaust fog or oil fume generated in the at least one inner pot

An environmental protection system features a clear spinning curved volumetric enclosure to shed and throw off environmental contaminants such as rain, fog and dust that would affect a sensor image. The described design is especially suitable for cameras with extremely wide fields of view, such as panoramic or immersive cameras. Alternate forms of volumetric enclosures are described for different lens arrangements in compound camera systems. In all of these embodiments it is possible to keep the cover and the mechanism spinning it invisible to the cameras. An additional modification of the shape of the volumetric enclosure is described that prevents any accumulation of liquid drops within the fields of view of the sensors within the spinning volumetric enclosure. Alternate forms of construction with air and magnetic bearings are described for smoother and quieter operation of the spinning enclosure.

The utility model relates to a large-scale multifunctional phytotron system for electrical tests, in particular to an artificial simulation test system with external insulation power transmission and transformation equipments in complex atmospheric environment, belonging to the high voltage and insulation technical field. The system comprises a phytotron body (1), a wall bushing (2) for leading-in the power supply, a wind speed simulation apparatus (3), a refrigeration system (4), an evacuation system (5), a steam fog system (6), a water treatment system (7), an ice coating, fog spraying and raining system (8), a hook and rotating apparatus (9) and a test environment measurement system (10). The large-scale multifunctional phytotron system of the utility model enables to simulate altitude of 232 to 7000m, atmospheric pressure of 98.6 to30KPa, temperature of -45 DEG C to 70 DEG C, wind speed of 0 to 12m / s and water electrical conductivity of 10 to 5000MuS / cm, and enables simulation and regulation of complex meteorological environment such as high altitude, ice coating, fog spraying, raining and other environments.

The invention discloses a method and a device for processing wet quenching coke gas fog on the basis of athermal plasma injection. The method comprises the following steps that: in the ascending process, the hot gas fog generated by wet quenching coke sequentially passes through three processing steps including spray cooling, pre-dedusting on a baffle plate and athermal plasma purification, and is cooled in a spray cooling area; the cooled gas fog enters a pre-dedusting area on the baffle plate where the thicker and bigger water particles and coke powder in the gas fog are separated from the gas fog and impact to the baffle plate under the action of inertia; the remaining gas fog continues to ascend and enter an athermal plasma purification area where organic components, ammonia nitrogen and cyanide in the gas fog are oxidized by the athermal plasma; the water particles and the coke powder are charged and are transferred to a trapping pole plate directionally under the action of a high voltage electric field; and then the gas flow after subjected to the athermal plasma purification area continuous to ascend to the top of a coke quenching tower to be discharged. After the processing steps, the contents of water vapor and the coke powder discharged outside after one ton of coke is produced are controlled to be less than 0.05 ton and 5 grams respectively, and the removal rate of the organic components, the ammonia nitrogen and the cyanide can reach more than 80 percent.

A defogging device for a surveillance camera has a heating element, a circuit board and a power cord. The heating element is mounted over the lens of the surveillance camera. The circuit board compares ambient temperature to a preset temperature, activates the heating element and has a power input terminal, a power output terminal and a temperature sensor. The temperature sensor is mounted between the power input terminal and the power output terminal and senses ambient temperature. When the ambient temperature is above the preset temperature, the circuit board activates the heating element. The power cord is connected to the circuit board and the heating element and transmits power to the heating element from the circuit board. By activating the heating element during periods of cold ambient temperature, the defogging device removes fog and frost from or keeps fog and frost from forming on the lens of the surveillance camera.

The invention discloses a sea fog image automatic defogging method and a sea fog image automatic defogging system based on a dark channel and Retinex, and belongs to the technical field of image information processing. The method comprises the following steps: (1) calculating a dark channel image of an input image; (2) calculating the proportion of the low-value pixels of the dark channel image, and calculating the brightness and contrast characteristics of the input image; (3) automatically classifying the image according to the proportion and the characteristics calculated; and (4) processing a to-be-processed image according to the category of the image. The invention further discloses a sea fog image automatic defogging system based on a dark channel and Retinex. According to the invention, an image can be classified according to the attribute of the image, and a corresponding processing method can be selected adaptively. The contrast and definition of sea fog images are improved greatly. Moreover, the algorithm has low complexity and high operation speed, and thus can be used in a maritime intelligent transportation system.

The invention relates to a video image defogging method based on self-adapting allowance and belongs to the field of video image processing. The method includes: building a single-frame image foggy day degradation model, estimating a rough transmission picture by aid of dark channel prior, obtaining a refined transmission by aid of a guide filter, judging whether images contain a large bright area, obtaining the rectified transmission picture and restoring a fog-free image. The method is applicable to video images with basically unchanged scenes like vide monitoring and video images with dynamically changing scenes, and can be widely applied to outdoor monitoring, remote sensing, intelligent transportation and other aspects.

The invention discloses an NRIET fog forecasting method based on machine learning. The method comprises steps that historical and forecast data for model training and operational forecasting in and around the forecast area is collected; the collected data is analyzed and processed to be a sample set for training a machine learning model; for problems, an xgboost model algorithm based on a decisiontree is selected, key influence factors generated by the airport fog are screened, and a relationship model between the fog and the influence factors is established; a training set and a verificationset are trained; according to the parameter adjusting sequence, model parameters are repeatedly adjusted till a forecasting model with optimal performance is acquired; an integrated learning method is utilized, and intersect verification and iteration training are carried out for the model to further improve model forecasting performance; observed real-time data is inputted to the forecasting model to acquire the fog forecasting result.

The invention discloses an Internet of Vehicles deployment system based on fog computing and relates to the field of Internet of Vehicles deployment and planning. A road side unit RSU collects vehicle traffic information and sends the information to fog equipment; the fog equipment processes and forwards the vehicle traffic information and temporarily stores the vehicle traffic information; and the fog equipment uploads the stored vehicle traffic information to a server cluster, and the server cluster controls the vehicle traffic information through computation and analysis of a big data result and makes a reasonable traffic strategy. According to the system, the fog equipment is introduced to the edge of the network, and meanwhile, the fog equipment temporarily computes and stores the vehicle traffic information, so that the bandwidth resources are saved and the data transfer rate is improved.

A method and system for provoking gait disorders, such as freezing of gait; usable, for example, for diagnosing and / or treatment thereof. In an exemplary embodiment of the invention, displays of situations calculated to cause freezing of gait are presented to a subject, optionally using virtual reality displays. Optionally or alternatively, incipit freezing of gait is identified using changes in gait parameters, and optionally used to guide attempts at causing freezing of gait. Optionally or alternatively, a portable device is provided which detects incipit freezing of gait and generates a corrective signal to the subject.

A low cost, all weather, high definition imaging system for an autonomous vehicle is described. The imaging system generates true target object data suitable for imaging, scene understanding, and all weather navigation of the autonomous vehicle. Data from multiple arrays is fed to a processor that performs data association to form true target detections and target positions. A Boolean associator uses an association method for determining true target detections and target positions to reduce many of the ghosts or incorrect detections that can produce image artifacts. The imaging system provides near optimal imaging in any dense scene for autonomous vehicle navigation, including during visually obscured weather conditions such as fog. The system and method can be applied to variety of imaging technologies, including an RF system, a Lidar system, a sonar system, an ultrasound system, and / or an optical system.

The invention discloses a prewarning anti-collision device and method for a vehicle. The prewarning anti-collision device comprises a GPS (Global Positioning System) unit, an information transmit-receive control unit, a communication unit and a prewarning unit, wherein the GPS unit is used for acquiring the positioning information of the vehicle and sending the positioning information to the information transmit-receive control unit; and the information transmit-receive control unit continually receives the information of the vehicle, continually sends the information of the vehicle to the outside through the communication unit, continually receives the information of other vehicles, compares the information of the vehicle with the information of other vehicles and sends a collision prewarning signal to the prewarning unit. By adopting the prewarning anti-collision device for the vehicle, a driver can still accurately judge the conditions of vehicles nearby when the personal visual system feels that the front of the vehicle is blurred by rain and fog, sand and dust, and barriers; and information communication among vehicles is provided to bring convenience for the driver to accurately make a driving decision in a very short time, so that the alarm dispatching time is saved, the driving safety factor is improved and a life saving role can be played in emergency.

The invention relates to a preparation method for a high-hardness water-based glass baking paint composed of nano water-based acrylic resin, low-methoxylation amino resin, a water-based polyurethane acrylic hybrid, hardening resin, a colorant, a substrate wetting agent, an adhesive agent, an acid catalyst, a film-forming auxiliary agent, a defoaming agent, an anti-scratch flatting agent, a thickening agent, a bactericide, a pH regulator, a cosolvent and water. The prepared water-based glass baking paint has the advantages of low VOC, no pollution to the environment, no poison and harm to operators, strong coating film adhesive force, good flexibility, high hardness, excellent wear resistance, excellent water resistance, excellent alcohol resistance, excellent salt fog resistance, simple construction, and stable storage. A prepared paint film has the hardness reaching 5 H or more, and has anti-scratch and wear-resistance properties of a ceramic glaze film; a prepared glass product achieves effects of blue and white porcelain, enamel colored glaze porcelain, and white glazed porcelain; and the water-based glass baking paint is widely used for surface protection and decoration of wine bottles, perfume bottles, glass products, lamps, woodware, metals, plastics and other products.