688 results about "Extreme weather" patented technology

A two-axis solar tracker is capable of withstanding extreme weather conditions. The solar tracker includes a solar array, a frame, a base, a pivot frame, and a first and second actuator. The solar array is mounted to the frame and captures sunlight. The base is pivotally connected to the frame and defines a pivot axis for elevational movement of the solar array. The pivot frame is also pivotally connected to the frame and defines a pivot axis for azimuthal movement of the solar array. The first actuator controls elevational movement of the solar array and the second actuator controls azimuthal movement of the solar array. The solar tracker is pivotable between a raised position and a stowed position.

This invention describes a product that is used during emergency incidents where the location of people can be used to track who could have been involved in the incident for example Industrial Accidents, Extreme Weather, Natural Disasters, Terrorist Attacks etc. The service locates people using devices they carry with them typically their mobile phone (1). The people's locations are compared to the location and radius of the incident and the probability that they may have been involved in the incident is determined (possible or low probability). People are also automatically contacted by a verity of means for example SMS (2) to their mobile and asked to confirm their status. Their status is automatically updated and available to people who they have linked themselves to via the service.

The invention relates to a method and system for improving reliability of emergency power supplies of a nuclear power plant. At least one path of high-capacity battery energy storage system (fixed energy storage system and/or movable energy storage system) is used to supplement or replace final emergency power supplies of a nuclear power plant. When all existing emergency power supplies of the nuclear power plant fail, the system is started to supply power for equipment in an emergency plant of the nuclear power plant so as to keep discharging waste heat of reactor cores and cooling spent fuel pools of the nuclear power plant, thus ensuring the safety of the nuclear power station. The method and system provided by the invention can be used for resisting against extreme weathers and avoiding common mode failure of the emergency power supplies in the extreme weathers, can strength the reliability of the emergency power supplies of the nuclear power plant and can at least reduce the melting probability of reactor cores by 21.6%, thereby improving the integral nuclear safety level of the nuclear power plant.

A process purifies raw biogas created from a renewable source into pipeline grade natural gas and/or D.O.T. specification, or other predetermined specification, gas. The automated scrubbing processed employed and the particular attributes of the system allow the system to function under extreme weather conditions by employing specific tools to control the temperature of the scrubbing water to allow for efficient and effective removal of the carbon dioxide gas. The system also employs specific measures to use recycled scrubbing water, thus eliminating the need for excessive water generally needed to economically employ this type of scrubbing process. The recycled water is continuously de-carbonated to allow the recycled water stream to effectively scrub the raw biogas. Treated gas from the process is then dried, and compressed for introduction into storage tanks or a natural gas pipeline delivery system.

An apparatus for and method of filtering hydrocarbon contaminated water is disclosed herein. The present invention may be used in drainage openings, particularly in parking lots and containment areas for large sources of hydrocarbons such as oil tanks or electrical transformers, to remove hydrocarbons from hydrocarbon contaminated water. The apparatus has a filtration compartment which filters out debris and sediment which may clog the treatment compartment. A pre-filter attachable to the apparatus may be used to further aid in filtering out sediment. A means for melting snow and ice may be incorporated within the filtration compartment such that liquid flow is not hindered during extreme weather conditions. The treatment compartment contains a hydrocarbon absorption media which absorbs any hydrocarbons present in the water rendering such water substantially hydrocarbon-free for discharge directly into a stream or groundwater. In the event of a hydrocarbon spill, the hydrocarbon absorption media forms a plug which seals off the flow of contaminated water. A hydrocarbon solubilizing material capable of effectively removing sheen in a first pass may be disposed as a top layer over the hydrocarbon absorption media. Preferably, each compartment is manufactured as a cartridge which may be dropped into a housing inserted into a drain opening.

The invention relates to a low-quality image enhancement method under extreme weather conditions. According to the method, as for an inputted single image, the image is converted to a CIE-Lab color space; a color cast factor D is set; according to experience, if D is smaller than 1.4, the image is a clear image which does not require processing; if D is larger than 1.4, the image is a degraded image; whether the image is a dust image or a haze, rain and snow image is judged according to chrominance component values; if the image is in a haze, rain and snow image, an improved dark primary color priori algorithm is adopted to process the image; if the image is a dust image, a gamma-corrected contrast limited adaptive histogram equalization algorithm is adopted. With the method adopted, problems in the prior art can be well solved. The effects of the method are greatly improved compared with the in the prior art, and the popularization and application of the method can be benefitted.

A series of interconnectable foam-block ramps and platforms are provided that are cut from low density EPS foam but coated with durable exterior polyurea coating, and that include optional hard surfaces, and edge-and-corner treatments, and railing with hand grips. The components resist deformation and withstand extreme weather conditions, but are surprisingly lightweight and include integral hook connectors that securely engage. They can be easily assembled/installed to form a handicap ramp and/or arranged to form novel “terrains” for wheeled devices and/or arranged to form stages and platforms. The components are sufficiently durable to support high-stress wheeled devices such as a wheelchairs, trick bikes, skateboards, in-line skates and the like. A variety of optional components include a curb-simulating element, intersection-forming platforms, X-intersection connectors, double-decker platforms, steps, and railings.

The invention discloses a kiwifruit tree planting method. Connected greenhouses are used for cultivation, greenhouse films and arrangement of the greenhouses are adjusted along with change of seasons, the four-prevention measures including anti-freezing measures taken in winter and spring, rain sheltering and disease preventing measures taken in the rainy season, and cooling and sun blocking measures and windproof measures taken in midsummer are adopted, matched labor-saving tree cultivating management is performed, the capacity for coping with extreme weather in rainy and high-temperature areas in the south is effectively improved, and the high temperature and high humidity disease problem and the like which are difficult to solve in open field cultivation and traditional facility cultivation are solved. Due to the adoption of the method, the kiwifruit disease transmission route can be effectively cut off, input cost is low, manpower is saved, the survival rate of kiwifruit trees reaches 95.2%, the average single weight of red kiwifruits can reach 86 g under the situation that no swelling agents are applied, and the largest single fruit weight reaches 103.5 g; the soluble solid reaches 17.4% to 19.1%; the fruit cleanness is obviously improved, use of swelling agents and high-poison and mediate-poison pesticide is effectively eradicated, and quality safety of the fruits is guaranteed.

A wave energy device converts the motion of waves on a body of water into a usable form of energy, for example a flow of pressurized water or an electrical current. The device includes a buoyant body for tracking the rise and fall of the wave and a working surface coupled for movement with the buoyant body and which is designed to capture and convert both heave and surge forces of the waves. The device includes a rapid deployment and retrieval capability and a capability to rotate to accommodate changes in wave direction. The device is universally attached to the sea floor, which allows the device to pitch, yaw and roll with the wave forces from any direction, thereby reducing the likelihood of damage due to extreme weather or damage to or from marine traffic in the event of an encounter.

The invention discloses a medium-range forecast system and method for cold, rainy and snowy weather based on atmospheric variable physical decomposition. By utilizing the atmospheric space three-dimensional multivariable and time continuous grid data outputted in the past observed, the current observed and the medium-range numerical weather prediction modes, and the physical decomposition of the climate and the weather disturbance quantity, a causality between the regional sustained low temperature, rain and snow and freezing extreme weather events and the weather disturbance prior to and during the events is established in the method. According to the invention, a physical decomposition of the climate seasonal variation field and the day-to-day weather disturbance field is carried out according to the data of day-to-day three-dimensional space grid point temperature, altitude and wind and the like of the atmosphere from the troposphere to the stratosphere in the northern hemisphere for nearly 30 years, and a database for the atmospheric climate field and the weather disturbance field can be established; and a historical database of the low temperature, rain and snow and freezing weather in south China is established according to the data of day-to-day temperature and precipitation from the national meteorological station for nearly 50 years. The invention provides not only an inquiring system for historical low temperature, rain and snow and freezing weather events, but also a forecasting system for medium-range low temperature, rain and snow and freezing weather events.

The invention discloses a method for predicting traffic jam indexes for rush hours in the morning and evening. The method includes: a, dividing predication days into working days and rest days; b, utilizing a factor decomposition model to predict the traffic jam indexes for the rush hours in the morning and evening on working days in normal weather, in case of extreme weathers like rain, snow and fog, revising via a weather influence coefficient xi on the basis of the traffic jam indexes for the rush hours in the morning and evening on the normal working days; and c, utilizing a two-mode approaching model to predict the traffic jam indexes for the rush hours in the morning and evening on rest days in normal weather, and in case of extreme weathers like rain, snow and fog, revising via a weather influence coefficient xi on the basis of the traffic jam indexes for the rush hours in the morning and evening on the normal rest days. By the method for predicting the traffic jam indexes for the rush hours in the morning and evening, traffic conditions can be accurately predicted, and references are provided to future traffic management.

The invention discloses an unmanned aerial vehicle automatic collision avoidance system, including an unmanned aerial vehicle situation sensing module used for single level or pixel level target detection, tracking and recognition and abstraction of global cognition of environment from information to realize cognition of environment; an unmanned aerial vehicle collision threat assessment and prediction module used for making a threat assessment and conflict prediction of static obstacles, extreme weather and moving targets in a detected area when an unmanned aerial vehicle runs in airspace; and an unmanned aerial vehicle decision collision avoidance module used for generating corresponding behavior selection after the unmanned aerial vehicle obtains a flight conflict trend through assessment prediction, planning a feasible optimal collision avoidance path in time through a flight path planner, and outputting an avoidance decision and a maneuvering instruction. The unmanned aerial vehicle automatic collision avoidance system can realize automatic sensing and avoidance during flight of the unmanned aerial vehicle in the air, realizes systemization, automation and intelligentization of unmanned aerial vehicle collision prevention, and remarkably improves flight safety of all aircrafts when the unmanned aerial vehicle and other aircrafts share airspace.

The embodiment of the invention provides a subway subgrade structure monitoring method and device based on foundation InSAR. The method comprises the steps of using a radar sensor for repeatedly observing a target area on a linear scanning slide rail, and obtaining a synthetic aperture radar SAR image in about 10 seconds; matching image elements representing the same object in the target region inthe two SAR images to the same position, carrying out image registration; subjecting an interference image pair after image registration to conjugate multiplication (as shown in the description) to obtain an interference phase graph; carrying out noise filtering processing on the obtained coherent graph gamma; carrying out phase unwrapping on the coherent graph gamma subjected to noise filteringprocessing; carrying out atmospheric correction on the coherent image gamma subjected to phase unwrapping to obtain a deformation graph of the target area; carrying out geocoding on the deformation graph of the target area under the radar coordinate system, projecting to the geographic coordinate system, and obtaining a geographic coded deformation graph. High-precision and continuous deformationmonitoring of the whole area of the subway elevated and roadbed structure can be implemented under the extreme weather conditions or long distances (4Km) range.

The invention relates to a driving simulation control system based on BIM simulation environment. Traffic safety analysis mainly starts with road alignment design and traffic accident data, and psychological and physiological status change features of a driver and running status data of a vehicle under different road environments cannot be obtained. The system comprises a driving operation module, a driving simulation platform control module, an annular screen fusion display module, a vehicle performance acquisition module and a road characteristic acquisition module, which are all connected to a central processor. The central processor is connected with a BIM simulation environment module. Through the BIM simulation system, different road environments are established accurately, and operating information of the driver is obtained; through control algorithm for a multi-freedom platform carried out by the driving simulation operation module, and an environmental simulation algorithm for simulating various extreme weathers, road feel and vehicle feel can be simulated completely, and real-time acquisition and operation can be carried out on the driver and the vehicle condition; and data of multiple sensors can be collected, transported, processed, displayed and stored through modular design.

Wearable Drinking Garment is a series of inner skeletal tubes lined together and attached to form an X that straps flat around the chest, back and under arm area, with sipping tube at top end and airflow stub tube at bottom end; covered and protected by inner insulated lining to lock in temperature of water/liquid in extreme weather conditions; outer mesh lining for heavy resistance against rough and extreme activities. These three together form the X-shape Vest that locks onto the body, can go under or over clothing, is hands free and lightweight with water flowing through a series of flat tubes, giving an evenly balanced comfortable glove-tight fit to the body, with easy slip on/off convenience. Compete at higher levels while never stopping to get a drink. Second generation has oxygen tubes, mini tank for better breathing, ie: medical purposes, diving, space travel, short/long term mining and more.

The invention provides a method for controlling data quality of an automatic meteorological station based on strong weather process correction. The method solves the problems of false judging and missed judging of the traditional quality control method, and can obviously improve the reliability and accuracy of the quality control of the automatic meteorological station; especially for China southeast areas and coastal regions with frequent occurrence of extreme weathers, a smaller judging threshold value can be adopted, so as to realize more accurate judging, and effectively identify the false judging caused by local strong weather process (especially cold front and warm front crossing regions). The method has the advantages that by adopting the secondary reliability test correction, the false judging on the tested correct records caused by false records of the adjacent stations in the test calculation process is effectively avoided, and the accuracy of the quality control is further improved; the more accurate weather actual monitoring data sources are provided for a meteorological service system, and the accuracy of weather precast is further improved.

The invention relates to navigational positioning systems, and discloses a local positioning method and system based on satellite orbit information. A terminal acquires ephemeris data, in all time periods within the preset time length from the current time, of at least N satellites from a server, wherein N is larger than or equal to four. The terminal stores the acquired ephemeris data in a local database, when positioning information of the terminal needs to be acquired, the ephemeris data in the corresponding time periods are acquired from the local database according to the current time, satellite signals are captured and traced according to the ephemeris data acquired from the local database, local coordinates are calculated according to the captured and traced satellite signals, and the positioning information of the terminal is obtained. The terminal with the positioning function can be precisely positioned even though the terminal is under the condition without an auxiliary positioning network or the condition of the severe environment or the extreme weather.

The invention discloses a dual frequency band dual polarization spaceborne cloud-rain measurement radar system which is mainly composed of an antenna subsystem, a radio frequency subsystem, a digitalsubsystem, a monitoring subsystem and a power supply subsystem. The antenna subsystem adopts a parabolic reflector/microstrip reflective array antenna feeder system, and comprises a parabolic reflector/microstrip reflective array antenna, a Ka frequency band active phased array feed source, a W frequency band beam waveguide feed system and a Ka/W frequency band shared parabolic reflector/microstrip reflective array antenna. The radio frequency subsystem is connected with the Ka frequency band active phased array feed source, the W frequency band beam waveguide feed system and the digital subsystem. The digital subsystem is connected with a terminal. The system provided by the invention has the advantages that the three-dimensional vertical structure information of clouds and precipitationin the field of view can be quantitatively acquired; and the acquired global cloud-rain three-dimensional structure data can be applied to three-dimensional high-precision inversion of atmospheric clouds and precipitation, can be applied to global extreme weather monitoring and forecasting, and can be applied to atmospheric science and numerical simulation studies.

The invention belongs to the technical field of hydrological water resources, and discloses a water resource simulation method based on SWMM and MODFLOW coupling, which comprises the following steps:collecting research area space geographic data, meteorological data, rainfall-related hydrological data and hydrogeological basic data; constructing an SWMM and MODFLOW coupling model suitable for theresearch area in combination with the collected data; constructing different rainfall scenarios, and analyzing the dynamic change of the surface water under the different rainfall scenarios in combination with the SWMM model; different rainfall supply scenes are constructed in combination with an SWMM model simulation result, and underground water dynamic changes under the situation that different rainfall is not given are analyzed in combination with an MODFLOW model. According to the coupled water resource simulation method provided by the invention, the problems of local waterlogging, serious river water quality pollution, water body ecological environment deterioration and other urban rainwater in a traditional water treatment mode of a quick drainage mode in an extreme weather in a region with higher urbanization are effectively avoided, and the drainage intensity of a city is improved.

The invention discloses a serial server. The serial server comprises a serial module, a magnetic decoupling isolation circuit, an interface circuit, a first power supply circuit and a second power supply circuit, wherein the magnetic decoupling isolation circuit is arranged between the serial module and the interface circuit to realize isolation of signals; the first power supply circuit is connected to the interface circuit and the magnetic decoupling isolation circuit in order to supply power to the interface circuit and the magnetic decoupling isolation circuit; and the second power supply circuit is connected to the serial module, and is used for supplying power to the serial module. Through adoption of the serial server, the problem that an existing serial server is interfered easily by extreme weathers such as external lightning is solved, and the interference resistance of the serial server is enhanced.

The invention provides a power-frequency online anti-icing de-icing method for an electrified railway contact network. The method comprises the steps as follows: A, the head end and the tail end of any power-supply arm of an electrified railway traction substation are respectively connected with a head-end dynamic reactive compensation device and a tail-end dynamic reactive compensation device; and a temperature sensor is arranged on a contact network and connected with a controller of the head-end dynamic reactive compensation device and the tail-end dynamic reactive compensation device; and B, the temperature sensor monitors the temperature of the contact network, and when the detected temperature is lower than 0 DEG C, the controller controls the head-end and the tail-end dynamic reactive compensation devices to enter into an anti-icing de-icing working state and specific current is generated on a contact net for anti-icing and de-icing. The method is used to carry out automatic online anti-icing and de-icing under the condition that the railway is in a continuous running state and the power supply is not influenced, so that the contact network is not frozen in freezing rain, ice and snow and extreme weathers, thereby ensuring the safety of train operation.

The present invention is directed to systems and methods for managing and regulating construction sites, particularly in light of inclement weather or hazardous conditions. In many jurisdictions, extreme weather conditions, including excessive precipitation, render a construction site closed, or unworkable, thereby wasting time and resources. This invention provides a system and processes to monitor, detect and measure precipitation on a construction site, and even several sub-sites on the construction site, from a remote location. The system and processes of the present invention also provide features to further investigate precipitation levels in a more efficient manner than conventionally available and to communicate the construction site conditions, e.g., precipitation levels, and whether the site has met the required regulatory thresholds for inspection. Moreover, the present invention may be used to determine the magnitude of rain events, and potential liabilities associated therewith.