2058 results about "Severe weather" patented technology

Free space optical communications systems which resist atmospheric attenuation of optical beams is presented. Very long link distances remain highly reliable despite fog and other inclement weather conditions which otherwise tend to hamper optical transmissions in an atmospheric air column. Systems include primary elements as follows: a plurality of transceivers and at least one air column optical path. Each transceiver includes specialized light sources which produce radiation in the Mid-IR spectral region. In addition, these sources are very compact and well organized in view of their intended deployment environment. Further, special modulation means are joined with particular light sources to address high bandwith needs. In addition, specialized detection strategies are presented whereby sensitivity is improved. Alternative versions and configurations directed to specialized function are also described in detail.

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.

A system and method for generating storm warnings which are precisely tailored automatically for a particular individual or business user's geographic location of interest, which may be provided automatically to the individual user or business. The user establishes an individualized user profile, in which the user may define a particular location of interest and a contact address to which a personalized storm warning is to be delivered. The user may also establish a storm profile defining attribute characteristics of a storm for which the user desires a storm warning to be provided, and an amount of advanced warning to be provided by the personalized storm warning. A detailed and accurate storm track which includes information describing storm characteristics (severe weather conditions) as well as the current location and predicted track of movement of storm, is generated. The storm track may be generated automatically from weather radar data, such as NEXRAD data, either alone, or in combination with local live weather radar information, to provide a more accurate storm track. Generated storm tracks are compared to individual user profiles. Personalized storm warnings identifying in detail the storm conditions approaching a user location of interest and arrival time information for that location of interest are generated for user profiles defining locations of interest within a predicted storm track, if the storm track characteristics of the storm meet the attribute and advance warning characteristics specified in the storm profile established by the user. The personalized storm warnings may be delivered to users via e-mail, cell phone, pager, etc.

A system and method for generating storm warnings which are precisely tailored automatically for a particular individual or business user's geographic location of interest, which maybe provided automatically to the individual user or business. The user establishes an individualized user profile, in which the user may define a particular location of interest and a contact address to which a personalized storm warning is to be delivered. The user may also establish a storm profile defining attribute characteristics of a storm for which the user desires a storm warning to be provided, and an amount of advanced warning to be provided by the personalized storm warning. A detailed and accurate storm track, which includes information describing storm characteristics (severe weather conditions) as well as the current location and predicted track of movement of the storm, is generated. The storm track may be generated automatically from weather radar data, such as NEXRAD data, either alone, or in combination with local live weather radar information, to provide a more accurate storm track. Generated storm tracks are compared to individual user profiles. Personalized storm warnings identifying in detail the storm conditions approaching a user location of interest and arrival time information for that location of interest are generated for user profiles defining locations of interest within a predicted storm track, if the storm track characteristics of the storm meet the attribute and advance warning characteristics specified in the storm profile established by the users. The personalized storm warnings may be delivered to users via e-mail, cell phone, pager, etc.

Apparatus and processes to automatically power-down a computer system upon determination of the presence, imminence, or forecast of severe weather in the local area. A computer system receives data relating to a weather forecast for a particular local area from a weather service communication server and, based on a determination of the presence, imminence or forecast of severe weather in the local area, initiates an automatic power-down sequence. A delay may be provided to allow the user time to abort the initiation of the automatic power-down sequence. The data may be transmitted in any suitable manner, e.g., over a telephone line through the PSTN, using the Internet, using a paging system, etc. The weather service communication server is provided with the particular local area relating to the computer system. For instance, in the case of a dial-up telephone call to the weather service communication server, call related information such as the telephone exchange number and/or the area code in Caller ID information can be used by the weather service communication server to determine the local area relating to the particular computer system. Thus, a user is provided additional security against damage which may be caused to all or a portion of a computer system due to lightning strikes, downed telephone poles, etc. as a result of severe weather in a local area.

A method for conveying both a risk and the degree of risk of a severe weather at a particular geographic location is disclosed. The method involves receiving a location of interest from a requestor, forecasting a risk of severe weather for a specific time period associated with the location, computing a degree of severity level of the risk of severe weather for the location, and generating a report containing the risk forecast and the computed severity level that can be delivered or provided to the requestor. The severity level of the risk of severe weather is provided in an easy to understand graphic or other format.

A solar collector arrangement includes a number of assemblies (1), which are immersed or partially immersed in a pond of water (2). Each assembly (1) includes a parabolic reflector (3) and an absorber (6). Barriers (10) are located on or near the surface of the water (2) and operate to reduce waves which may otherwise disturb the direct passage of sunlight in windy conditions. The complete immersion of the assembly (1) in the liquid serves to simultaneously protect and cool the apparatus, while allowing ease of sun10 tracking movements by buoyancy induced rotation. Partially immersed versions have higher efficiency and protect against severe weather by inverting into the water.

The invention discloses a scheme of a flying lifesaving system fixedly or movably arranged on the bridge or deck, characterized in that: a large-diameter main ducted coaxial reversible dual-rotor body is used for bearing main lift; small-diameter ducted rotor bodies are symmetrically arranged around the large-diameter main ducted coaxial reversible dual-rotor body in the same plane, connecting arms can freely move in the forms of stretching, twisting, shaking and swinging, thus the effects of bearing assistant lift, mainly controlling the direction and resisting vortex ring are achieved; and a variable inertia system and an energy delivery dragging cable system are arranged in the main rotor. The device can resist turbulent flow sudden shearing transition winds and has anti-adverse wind long-endurance submersible capability, can fly within the length of the dragging cable or the distance of wireless remote like helicopter rescue principles under sea conditions in bad weather and directly fly beyond the persons in water to hover to conduct marine salvage; and can land on the water surface to float to release rescue devices to let the persons in water enter, and swan the rescue devices by using the motive force of the rotors and the pulling force of the energy delivery dragging cable to the lifeboats to save people, thus the rescue scheme and equipment of the rescue devices under sea conditions in bad weather are achieved.

The invention provides a 4D real traffic scene simulation based severe weather early-warning management system and method. The system comprises a multi-factor omnibearing tracking detection radar sensor, a data collection and analysis processor, a cloud processing server and main equipment of a 4D simulation management work station; a radar tracks vehicles and pedestrians on the road, obtains position information of the vehicles and pedestrians, and triggers a license plate snapshot camera to carry out real-time snapshot on vehicles synchronously; the system obtains node weather information ofthe present road to simulate the traffic road condition environment in a 4D manner and start an early warning rule, the road which the vehicles/pedestrians are passing is determined according to theposition information of the vehicles and pedestrians; and the alarm information is sent to the vehicles and pedestrians to pass the road in a point to point or broadcasting manner to make alarm prompt. According to 4D real traffic scene simulation, a road manager can use the system to make an emergency plan, carry out road control and rescue of vehicles and pedestrians in an accident, informationis pushed to avoid the planned route, and the risk of high-speed travel in the severe weather is reduced.

A system and method for automatically regulating access control levels in an access control system based on prevailing security levels including homeland security levels, local environment situations such as crowds, rioting, looting, severe weather and temporal states such as workdays, weekends, holidays, and open houses.

The invention discloses a vehicle tracking method based on machine learning and optical flow. A vehicle model is obtained through one-off off-line training and used for detecting vehicle block mass Blobs in a video flow in real time, bidirectional pyramid optical flow tracking is performed on calculation characteristic point sets of all the vehicle mass block Blobs, and results of optical flow tracking in the forward direction and the backward direction are analyzed and filtered, so that multiple targets are stably and accurately tracked to form vehicle tracks. According to the complete vehicle tracking solution, the vehicle tracking method based on machine learning and optical flow can be widely applied to the fields of intelligent traffic, electronic polices, video monitoring, unmanned driving and others; by the utilization of the tracking method, a user can solve the classic problems in an existing tracking algorithm well, the multiple targets, such as long-period vehicle staying, size scale changing, shadowing, local shielding and touching, can be stably and accurately tracked; particularly, the vehicle tracking method has the good effects under the conditions of severe weather, a low illumination level and a high noisy point.

The invention discloses a monocular camera and millimeter wave radar fused object identification and positioning method and system, and belongs to the technical field of multi-sensor fusion. The method comprises the following steps: step 1, sensor data acquisition and frame synchronization; 1a, millimeter wave radar and monocular camera data acquisition; 1b, data sequence matching based on frame synchronization; 2, recognition of an object and a boundary based on the neural network processing image; 2a, training in advance an instance partition neural network based on Mask-RCNN; 2b, completingobject recognition and image instance segmentation by using a neural network; 3, coordinate system conversion and data fusion; 3a, under the condition of known external parameters between sensors, converting radar point cloud to an image coordinate system; 3b, completing object matching information fusion based on an instance segmentation result; and 3c, displaying the object category and the object spatial position under the three-dimensional coordinate system. The method is more stable, and the influence of severe weather on data acquisition can be overcome.

In one embodiment, an electronically controlled hatch system for safe ingress, egress, hazard detection, and methods thereof are provided to reduce or eliminate hazards to personnel, including protection of people above and below a scuttle hatch, access port, skylight or elevated deck. Said hatch system reduces the risk of falls while ascending or descending a ladder through an access port. In certain embodiments, severe weather, hazard, security, and other safety information are detected and transmitted to a central control unit for processing and regulating the opening and closing of a hatch covering the access port and/or raising and lowering a safety railing system based on said information and/or user input. Said hatch system may include an actuator and guides for automatically locking/unlocking and opening/closing a hatch, an actuator and guides for automatically raising/lowering a railing system, hazard, security, lighting, and other safety monitoring detectors/apparatuses, and a centralized controller.

A navigation system integrated with knowledge of active emergency alerting system alert data and up to date Doppler weather radar data, to provide a visual representation of an alert area and/or current weather patterns on a map, and to automatically navigate a subscriber device away from an affected area, e.g., an alert area, an area under severe weather. The inventive navigation system displays NEXRAD Doppler weather radar data on a map by integrating a NEXRAD feed into the map and allowing a user to enable/disable the NEXRAD feed as a map overlay. The inventive navigation system also automatically routes or reroutes a subscriber device to avoid areas under severe weather. The navigation system is also integrated with a conventional CMSP gateway in an emergency alerting system to provide: a visual representation of an alert area on a map and to automatically route/reroute a subscriber device around an alert area.

The invention provides an automobile traffic safety simulation driving education training system which enables students to experience safety risks in the daily traffic environment and grasp disposal skills in an emergency state on the basis of a basic training driving technique and enhances the safe driving awareness of the students. The automobile traffic safety simulation driving education training system provided by the invention is characterized by comprising a display component, a sound effect component, a control component, a selection input component, a signal acquisition and processing component, a main control computer component, a cockpit component and a multi-DOF (degree of freedom) moving component, wherein a complicated traffic environment safe driving training module, a typical dangerous state safe-driving training module, a severe weather condition safe-driving training module and a safety comparison driving training module are arranged in the main control computer component; the main control computer component is respectively connected with the display component, the sound effect component and the multi-DOF moving component; the control component is integrated in the cockpit component; the control component and the selection input component are connected with the signal acquisition and processing component; and the signal acquisition and processing component isconnected with the main control computer component.

Autonomously driven vehicles operate in rain, snow and other adverse weather conditions. An on-board vehicle sensor has a beam with a diameter that is only intermittently blocked by rain, snow, dustor other obscurant particles. This allows an obstacle detection processor is to tell the difference between obstacles, terrain variations and obscurant particles, thereby enabling the vehicle driving control unit to disregard the presence of obscurant particles along the route taken by the vehicle. The sensor may form part of a LADAR or RADAR system or a video camera. The obstacle detection processor may receive time-spaced frames divided into cells or pixels, whereby groups of connected cells or pixels and/or cells or pixels that persist over longer periods of time are interpreted to be obstacles or terrain variations. The system may further including an input for receiving weather-specific configuration parameters to adjust the operation of the obstacle detection processor.

An automated system for monitoring and testing a sump pump installation includes an electrically-actuated valve which admits liquid to the liquid container in response to a valve control signal. A test control module includes a test control circuit which when actuated supplies a valve control signal to initiate a test cycle during which liquid is admitted to the container to cause the liquid level in the container to rise, after which the sump pump discharges liquid from the container until a predetermined event terminates the test cycle. An indicator circuit indicates in response to completion of the test cycle whether the test was successful or unsuccessful. A communications circuit is included which receives and verifies control signals addressed to the system from an external originator to allow a test cycle to be remotely initiated in the event of impending severe weather or other threats.

An adult stroller includes a movable frame adapted for use by a person to assist in ambulatory movement, and a canopy that is positioned substantially above and carried by the movable frame. A flexible shield extends downwardly from the front portion of the canopy to at least partially cover a front portion of the movable frame. Such coverage effectively protects a passenger from the environment or potential inclement weather.

A security system that secures a building includes a weather detector for detecting weather conditions, such as thunder or high winds, which are likely to cause false alarms in sensors such as an acoustic glass break sensor, shock sensor and vibration sensor. The weather detector may include a sensing component that senses atmospheric conditions external to the building, such as temperature, pressure, wind speed and/or lightning. The weather detector may also include a component for receiving a data communication, such as from a radio, Internet, or telephone link, indicating that the weather condition is present in a vicinity of the building. The security system operates in a bad weather mode by requiring corroboration of intrusion detection signals from the sensors that can cause false alarms.