309 results about "Wind sensor" patented technology

An automatic protective shutter system that is controlled by atmospheric and or human intervention conditions. The shutter consists of a net that can be deployed automatically to cover any opening in a building structure. The shutter net can withstand high winds such as are prevailing winds in a hurricane. The shutter net can also withstand any projectiles that are being encountered in a hurricane. The shutter also protects against the incidence of high ultraviolet UV rays and/or excessive light. The shutter net also detects any tampering by a burglar or vandalism to shut down the opening or to sound an audible alarm. The shutter system is also extremely useful as a shield against the intrusion of insects. The protective shutter system can be controlled locally or by a remote system. The remote system would include a computer system operating through the internet. All of the above can be detected by various sensors such a high wind sensors, ultraviolet sensors and proximity sensors. The shutter net itself has an established surface frequency that operates within tolerable limits to generate a signal when that frequency is disturbed or changed to indicate a disturbance.

A wind turbine system comprises a current generator having a planar base member, a connection member secured at a geometrical center of the base member and configured to rotate about an axis transverse to a plane of the support member upon exertion of wind pressure on the wind turbine, a rotor assembly secured to the connection member for rotation about the axis, the rotor assembly spaced from the base member and comprising planar rotor members spaced from and parallel to one another; and a planar stator assembly secured to the base member and centered in a spacing between the rotor members, the stator assembly configured to generate a current upon rotation of the rotor assembly relative thereto. A control system supplies power from the generator to an electrical grid. A control system adjusts an angular position of the turbine blades. A wind sensor measures a differential wind pressure.

A water irrigation system may include a computer system, a sensing unit, an irrigation controller, and/or a water delivery system. The sensing unit may include a wind sensor. The wind sensor may include thermistors. The sensing unit may assess wind speed at one of the thermistors as a function of temperature. The sensing unit may provide output based on the assessed wind speed to the computer system. The computer system may control irrigation of a zone to be irrigated at least partially based on the assessed wind speed. A method of controlling irrigation may include assessing wind speed as a function of temperature, assessing an irrigation need of the zone to be irrigated at least partially based on the assessed wind speed, and controlling irrigation to at least meet the assessed irrigation need of the zone to be irrigated.

Techniques are disclosed for providing the weapon-mounted optical scope that provides for wind sensing and the display a ballistic solution without the need for a separate device. Embodiments may include various additional sensors housed within the weapon-mounted optical scope to provide data for the ballistic solution calculation. Embodiments may further include a display at the input aperture rather than internally at the first-focal-plane, enabling for simpler, more cost effective embodiments. Additionally or alternatively, embodiments may include a laser, separate from the wind sensing laser, to perform range-finding functions, and/or an enhanced-image assembly.

The invention relates to a tetrahedral ultrasonic wind sensor and a measuring method thereof. The sensor comprises ultrasonic probes arranged on a support and a base, a bracket arranged between the support and the base and a control chamber positioned below the base. The invention is characterized in that one probe is vertically arranged on the support or the base, and three probes are arranged on the base or the support, and the four center points at the top end surfaces of the four ultrasonic probes are four vertexes of the space tetrahedron; or one ultrasonic probe is vertically arranged on the base, and three ultrasonic probes are arranged on the support. The measuring method comprises the following steps: determining wind speed measuring paths between every two of the four probes, using wind speed components on two paths in the horizontal plane to synthesize a two-dimensional wind speed, and then using the two-dimensional wind speed and out-of-plane wind speed components to synthesize a three-dimensional wind speed vector. By reducing the number of the probes from six to four, the invention simplifies the structure and reduces the cost and the failure rate; and besides, the number of the measuring paths is increased from three to six, thereby simplifying the complexity of wind speed calculation.

The present invention is a wind turbine solar control system. This system may be applied to various types of wind turbines that use a start-up motor or will be able to be turned efficiently using a sun powered motor. A rechargeable battery is used to hold enough power to start the propeller for a predetermined amount of time. Wind sensors will be included to determine if enough wind is present to turn the propeller on. A control box may be included to designate when to turn the motor on and off. It also controls how much to charge the battery and regulates when to stop charging.

The invention relates to a detection method and system for low-altitude wind shear at an airport. The detection method comprises: S01, wind profile radar data of a boundary layer and wind sensor data of an airport runway are collected in real time to obtain wind field information; S02, wind shear information is extracted and outputted; and when the wind shear information exceeds a system threshold value, an early-warning signal inside a system is triggered; and S03, the early-warning signal is determined. Besides, the detection system is composed of a data acquisition module for collection data to obtain wind field information, wind shear data processing module for extracting wind shear feature information, and the wind shear early-warning data output module for determining and outputting an early-warning signal. According to the invention, the air field above the air port is detected in real time based on the wind profile radar data of the boundary layer and early warning of wind shear in a horizontal direction and a horizontal direction is carried out according to the obtained actual meteorological observation data, so that the identification and early-warning capabilities of the wind shear weather of the air port can be enhanced well. Therefore, the method and system have the broad application prospects.

A multistage furnace for heating residential or commercial spaces is operated by a single stage thermostat and a return air temperature sensor providing sensed temperature information to a controller. The furnace is started at a first, low firing rate and after a predetermined time is increased to a second firing rate if the rate of change of temperature of air returning to the furnace from the space is less than a predetermined amount. The method of operation is carried further to increase the firing rate to second and third rates based on predetermined rates of temperature change of return air from the enclosed space as sensed by the return air sensor.

A low wind, lightweight horizontal axis wind generator with two adjustable rotor assemblies that include at least one set of lightweight blades that can be manually or automatically unfurled or furled in low, moderate and high winds. In one embodiment, each blade has an airfoil shape in cross-sectional with a rounded leading edge and a thin tailing edge. In a second embodiment, each blade is sail shaped made of one thin cover or panel that assumes a concave cup-like configuration in the wind. In both embodiments, the blade are made of lightweight flexible material supported by an inner frame. In one embodiment, the cover moves longitudinally over the inner frame. In the second embodiment, the cover moves laterally over the inner frame. The unfurling and furl of the blades are controlled by a voltage sensor that constantly measures the voltage output of the generator and/or by wind sensors.

The invention relates to an automatic monitoring and control technology-based drilling platform propeller auxiliary anchoring positioning system. The automatic monitoring and control technology-based propeller auxiliary anchoring positioning system comprises a drilling platform 2, a sensor system 3, an anchoring system 4, a wind power compensator 9, an observer 10, an anchoring monitoring system 11, a controller 13 and a propelling system 14. The sensor system 3 comprises a tension sensor 5, a compass 6, a GPS7 and a wind sensor 8. The enabling strategy of the controller is performed through monitoring the tension state of the anchoring system in real time; when the marine environment is adverse, the tension of an anchor chain exceeds the set threshold, and the condition lasts for a period of time, the controller is made to participate in positioning control of the drilling platform, to decrease the tension of the anchor chain of the anchoring system and prevent the anchor chain from being broken due to excessive tension, the auxiliary anchoring and positioning functions of propellers are fulfilled, and thus the adaptability, to the marine environment, of the drilling platform is enhanced.

The present invention relates to an open-typed magnetic induction imaging measuring device, consisting of a controller, an actuating single passage, an offset signal passage, a power magnifying circuit, a relay array, a winding sensor array, an array of difference amplifying circuits, a switch array, a signal regulating circuit, a signal amplifying and signal regulating circuit, a signal scale adjusting circuit, an A/D transferring circuit, a circuit for limiting drift of switch temperature and an external communication port. Imaging of the present invention is relatively simpler than global imaging, while requirement about hardware system in imaging of the present invention is lower than that of the global imaging, which means lower parameters about passage values which activate the signals. The present invention can satisfy needs of clinical medicine toward small sized, cheap, noninvasive and quick test instrument and imaging equipment with function of real time monitor.

The invention regards an apparatus for adjusting the yaw of a wind turbine adapted for mounting on a wind turbine comprising, a system for measuring the wind direction adapted, via a control signal, to control the yaw angle of the wind turbine based on the wind direction, and a wind sensor system adapted to determine the yaw error of the wind turbine, and means for modifying the control signal based on the yaw error determined by the wind sensor system.

The invention discloses an ocean station online monitor system which is of a vertical structure and consists of a fixed support device and a measurement control device. The measurement control device comprises a wind-light complementary generating device, a measurement sensor, a wireless video monitor device and a wireless data communication device, wherein a wind driven generator of the wind-light complementary generating device and a solar energy conversion device are combined so as to supply power for the system; the measurement sensor comprises a wind sensor, a baroceptor, an irradiance meter, a humiture sensor and a water level sensor, and can collect the observed data of wind speed, wind direction, air pressure, irradiance, temperature, humidity and tidal level so as to transmit real-time observed data and stored data through the wireless data communication device; and the wireless video monitor device is used for sending the visual image taken by a video camera out through a wireless router, so as to realize visualization monitor on the live condition of field device. Through the analysis of the collected data and the video image, remote online monitor on the equipment of the measured station is realized, times for site maintenance is reduced, and the work efficiency is improved.

The invention discloses a water travel protection system for a shipborne unmanned aerial vehicle based on Internet of Things. The water travel protection system comprises an unmanned aerial vehicle body and a control center; a wind sensor and a humidity sensor are mounted at the upper end of the unmanned aerial vehicle body, a high-definition camera is mounted at the front end of the unmanned aerial vehicle body, a distance sensor is arranged on one side of the high-definition camera, a sonar detector is arranged on the other side, and a undercarriage is arranged on each of the two sides of the lower end of the unmanned aerial vehicle body. The water travel protection system disclosed by the invention has the benefits that when an airbag is inflated, a certain buffering effect is provided for the unmanned aerial vehicle, so that the crash probability of the unmanned aerial vehicle is reduced; as the wind sensor and the humidity sensor are arranged, whether the unmanned aerial vehicle is dangerous in flight in a weather environment at that time or not is judged, so that the safety of the water surface flight of the unmanned aerial vehicle is ensured; as a wireless communication module and a GPS (Global Positioning System) positioning module are arranged, when the unmanned aerial vehicle is accidentally damaged, the unmanned aerial vehicle can be quickly found by the remote monitoring terminal and then is taken back for repair.

The invention provides a ship dynamic positioning speed estimation system and method based on interference compensation. The system comprises a dynamic positioning ship (2), a propeller (3), a sensor system (4), an external force estimation system (6) and a state observer (9). The sensor system (4) comprises a wind sensor (5), a compass (11) and a DGPS (12). The external force estimation system (6) comprises a thrust compensator (7), a wind power compensator (10) and a slow-changing interference compensator (8). On the basis of the non-linear passive state observer, a resultant force compensation system is added, through modeling analysis on system and environment force, an interference observer is used for carrying out approaching on slow-changing interference, compensation is carried out in an observing system, the complexity of the state observer is lowered, speed observation accuracy is improved, and influence on ship state observing from slow-changing interference force is lowered.

The present invention relates to a method of controlling an idling wind turbine in which wind condition data and wind turbine position data are collected by a sensor system, a control system computes an optimal pitch angle for a rotor blade of the wind turbine, and a pitching system continuously turns the rotor blades in the same direction in multiples of 360 degrees. The present invention further relates to a wind turbine with a sensor system including a wind sensor that measures wind condition data in the vicinity of the wind turbine, and a control system including a computer that executes a control algorithm and processes sensor input from the sensor system to compute an optimal pitch angle value for a rotor blade on the hub. This allows pitching the rotor blade into angle in which the mechanical loads of that rotor blade are reduced to a minimum when idling.