32results about How to "Low tracking accuracy requirements" patented technology

A method includes receiving first tracking data and a first confidence value at a tracker selection system from a first tracking system. The method includes receiving second tracking data and a second confidence value at the tracker selection system from a second tracking system. The tracking systems may be configured to track an object in a sequence of images, and the first and second tracking data may indicate locations of regions where the corresponding tracking system has tracked the object in an image of the sequence of images. The confidence values may indicate likelihoods that a corresponding tracking system is tracking the object. The method further includes providing output data to the first tracking system and to the second tracking system. The output data may include data selected from the first tracking data and the second tracking data based on a result of a comparison of the confidence values.

The invention discloses a tower type solar thermal power generation system for a heat absorber of vacuum heat absorption pipes, which is characterized in that water/steam is taken a heat transfer fluid, and fusion salt is taken as a heat storage medium. The tower type solar thermal power generation system comprises a heliostat (1), a support tower (2), a heat absorber (3), a steam turbine (4), a generator (5), a deaerator (6), a condenser (7), a water feed pump (8), a high-temperature fusion salt storage tank (9), a low-temperature fusion salt storage tank (10), a water/steam-fusion salt heat exchanger (11), a fusion salt steam generator (12) and a control valve (13). The heat absorber (3) is formed by connecting the vacuum heat absorption pipes (18) in series and in parallel. According to the invention, the heliostat is arranged in a fan-shaped manner, a rectangular manner or a circumferential manner, the high-temperature and high-pressure overheating steam is obtained, and the solar thermal power generation system is suitable for a large installed capacity tower type solar thermal power generation station.

The invention provides a secondary reflection light gathering and heat collecting device with a compound curved surface, which relates to a solar slot type light gathering and heat collecting device and comprises a heat collecting tube (1), a plane primary reflector (2), a refracting plane secondary reflector (3), a compound circular arc primary reflector (4), a compound paraboloid secondary reflector (5) and a supporting frame (6), wherein the heat collecting tube (1) comprises two parallel heat collecting tubes and is positioned in the compound paraboloid secondary reflector (5), and the supporting frame (6) is positioned below the compound circular arc primary reflector (4) and used for fixing the compound circular arc primary reflector (4). By adopting the design of combination of onesupporting frame and two heat collecting tubes, the cost and the height of the heat collecting device can be remarkably reduced; by adopting the compound paraboloid secondary reflector, the requirement on the tracking accuracy is reduced; by adopting the compound circular arc primary reflector, the degree of freedom of the design is increased; and by adopting the design of combination of the planereflector and the refracting plane, the utilization ratio of the light energy is improved.

An operator of a monitored instrument is authenticated and a maintenance function for the monitored instrument is released. The head of the authenticated operator is then tracked in a dynamic image and the maintenance function for the monitored instrument is operated when the tracking fails.

The invention belongs to the technical field of solar concentration and heat utilization, and particularly relates to a composite multi-curved trough-type solar concentrating collector. According to the composite multi-curved trough-type solar concentrating collector with the automatic defrosting function, when a solar altitude is low, sunlight through a glass light inlet is reflected to a black light absorbing panel with a light trap by a half-paraboloid and a vertical reflection surface to heat air in an air heating cavity; one part of heated hot air is used for heating a glass cover plate and the other part of light enters the inner surface of a linear Fresnel condenser to ascend to the inner surface of the glass cover plate, thereby achieving the defrosting function. When the solar altitude is high, the sunlight through the glass cover plate enters the half-paraboloid and a parabolic reflector, and is converged to a fin in a glass vacuum tube receiver after being reflected to be absorbed by a heat exchange medium in a liquid channel, the sunlight through the linear Fresnel condenser is directly converged on a receiving body and two parts of converged sunlight provide the heat exchange medium with heat energy.

The invention provides a two-level focus sunlight converging device which mainly comprises a first level light converging unit, a second level light converging unit, a support and optical fibers. The first level light converging unit and the second level light converging unit are fixed on the support and are coupled on a sunlight incident light path, wherein the first level light converging unit is used for primarily converging sunlight, and the second level light converging unit is used for converging the sunlight which is converged by the first light converging unit again. The two-level focus sunlight converging device has the advantages that the size of sunlight focus light spots is effectively decreased. Meanwhile, the positions of the silica optical fibers can be adjusted through screws in an optical fiber collimator. Therefore, sunlight with different spectrums can be adjusted to enter the optical fibers, and the purpose of selectively transmitting sunlight spectrums is achieved. The silica optical fibers with small diameters can be used for transmitting, and cost is lowered. Meanwhile, large diameter diaphragms of the optical fiber collimator can effectively lower the requirement for following precision, and the positions of the optical fibers in the optical fiber collimator can be adjusted to selectively transmit the light spectrums of the sunlight.

The invention belongs to the technical field of photoelectricity and relates to an earth axis type solar concentrating photovoltaic generating device. The device consists of a series of solar concentrating photovoltaic generating units with the same structure; and each unit is arranged on a bracket. The solar concentrating photovoltaic generating unit consists of a reflecting optical collector, a single-axis tracking device, a non-imaging optical collector and an optical collecting solar cell which are connected into a whole through a single axis. The optical collecting system of the solar concentrating photovoltaic generating unit is a fixed focus-type point focusing system and has high light collecting ratio. The surface shape of the reflecting optical collector adopts a curved surface of a tire, can correct astigmatism and improve light collecting performance. In a single-axis tracking mode, a rotating axis of is parallel to the earth axis; and a mechanical structure of the tracking device and a control system are simple. The solar concentrating photovoltaic generating unit can realize batch production and effectively reduce cost for solar power generation.

An extremely low-cost solar concentrator is formed by inflating an elastic film. The solar concentrator is characterized in that an enclosed airbag is formed by a transparent film and a reflective film and then is inflated into a compound parabolic concentrator (CPC) non-imaging concentrator. The concentrator portion of the inflatable CPC is formed with the reflective film, and the portions on thetop of CPC and on the bottom of the concentrator are made of the transparent film. The incident light including parallel rays of light and diffuse light, as long as falling into the half acceptance angle of the CPC, will be concentrated to the exit aperture of the CPC. Therefore, this type concentrator reduces the requirement to the accuracy of tracking for concentration. In addition, this type of concentrator demonstrates more tolerance to shape distortion.

The invention discloses a low-concentration photovoltaic component. The photovoltaic component comprises a back panel, a light receiver and a concentrating system, wherein the back panel comprises a substrate and a metal foil; the surface of the metal foil is cut into a plurality of insulated periodic units; the substrate and the metal foil are adhered together through an insulating heat-conducting adhesive; the light receiver consists of serial solar cell chips of a plurality of linearly arranged glass substrates and is adhered in the periodic unit on the metal foil through the insulating heat-conducting adhesive; the adjacent solar cell chips are connected through the metal foil; and the concentrating light comprises a light focusing strip-shaped lens, a parabolic trough, a combined parabolic surface and an auxiliary element. By using the photovoltaic component, the sunshine can be focused on the light receiver with low cost and high efficiency under the optimal focusing condition so as to obtain the maximum photovoltaic conversion efficiency. The low-concentration photovoltaic component reduces the difficulty and the cost for heat dissipation and sun tracking while reducing the series resistance, the machining method for the component is simple and reliable, and the manufactured component has stable performance.

The invention discloses a reflection focusing solar energy photovoltaic power generation device. The device is mainly characterized in that a reflection condenser of the device is formed by a group of flat mirrors which are mounted together, in which one part of the flat mirrors are fixed flat mirrors, and the other part of the flat mirrors are rotating flat mirrors which can change angle; each rotating flat mirror is fixedly connected into a rectangular picture frame through a rotating shaft; the photovoltaic cell is fixed by a supporting rod on the opposite of the reflection condenser; and a supporting frame is fixed under the reflection condenser. According to the reflection focusing solar energy photovoltaic power generation device, the flat mirrors with low cost are used for converging solar light, according to the intensity and environment temperature of solar light, the concentration ratio of the reflection condenser is adjusted by dismounting or adjusting the reflection angles of a part of flat mirrors, and the total quantity of solar light reflected onto the photovoltaic cell is controlled, so that illumination on the photovoltaic cell remains optimal.

The invention discloses a low-altitude denial system and method for precise strike. The system comprises a command and control subsystem, a frequency spectrum detection subsystem, a radar subsystem, a light beam control and tracking subsystem, a microwave suppression interference subsystem, a navigation decoy interference subsystem and a laser source subsystem, wherein the command and control subsystem is used for realizing target search, interference and decision control; the frequency spectrum detection subsystem is used for realizing target early warning; the radar subsystem is used for realizing detection positioning and tracking and outputting coordinate information; the light beam control and tracking subsystem is used for realizing directional emission of high-energy laser beams; the microwave suppression interference subsystem is used for blocking uplink, downlink and navigation links of an unmanned aerial vehicle; the navigation decoy interference subsystem is used for realizing navigation decoy of a target by generating navigation decoy information of a strong signal; and the laser source subsystem is used for generating high-energy laser. According to the low-altitude denial system and method, the accuracy and success rate of target striking can be improved, and the method has very high engineering application value and the like.

The invention discloses a direct heat absorption type energy storage power generation system based on vacuum heat absorbing tubes. T the direct heat absorption type energy storage power generation system comprises a heat collection system, a heat storage system and a power generation system. The heat collection system comprises heliostats and a vertical heat absorption tube array. The heat storagesystem comprises a heat storage tank. The power generation system comprises a heat output conductor, a heat switch, a steam turbine and a power generator. The lower portion of the vertical heat absorption tube array extends into a heat storage medium. The other end of the heat output conductor makes contact with a steam generator heat exchange pipeline of the steam turbine through the heat switch. The output end of the steam turbine is connected with the power generator. The direct heat absorption type energy storage power generation system adopts a photo-thermal power station heat absorptionand heat conduction mode, directly absorbs sunlight through the heat absorption tubes, transmits heat to the heat storage medium in the heat storage tank on the ground without delivering the heat storage medium to a tower top. Application of an existing molten salt pump and flowing of the heat storage medium are avoided. The cost is substantially reduced. The safe reliability of the system is improved.

The invention belongs to the technical field of solar condensation and heat utilization, and particularly relates to a photo-thermal photovoltaic coupling energy-supply free-tracking solar condenser. The condenser comprises a groove-type composite multi-curved-surface solar condenser, solar cell modules, a glass cover plate, a glass vacuum tube and a straight-through tube, wherein the straight-through tube is arranged in the glass vacuum tube as a receiving body. The groove-type composite multi-curved-surface solar condenser focuses sunlight incident into the condenser into the glass vacuum tube positioned in the focal spot position inside the condenser, so that spot light heat emission is realized; the sunlight not received by the glass vacuum tube is reflected to the solar cell modules positioned on the inner side of the glass cover plate, so that spot light electricity generation is realized; and meanwhile, two solar cell modules are arranged back-to-back in an up-and-down staggered mode to form a hot air channel, a micro heat exchange channel is formed between two plate backs, so that heat generated when the solar cell modules work is conveniently taken away by air in the micro heat exchange channel, and frost on the surface of the glass cover plate is melted, so that the effect of defrosting is achieved.

The invention provides a fixed solar energy, radio and radio frequency convergence system, relates to the technical field of convergence systems, and solves the technical problems of high cost, complicated maintenance and the like of a convergence system in the prior art. The fixed solar energy, radio and radio frequency convergence system comprises a receiving area, a first convergence mirror anda second convergence mirror, the receiving area is inclined relative to the ground, and the lower edge of the first convergence mirror and the lower edge of the second convergence mirror are alignedwith the lower edge and the upper edge of the receiving area respectively. The axes of the first converging lens and the second converging lens in the horizontal direction are parallel to the receiving area; and solar energy, radio energy or radio frequency energy directly irradiates or is transmitted to the receiving area, or irradiates or is transmitted to the first converging mirror and is reflected to the receiving area, or irradiates or is transmitted to the first converging mirror, is reflected to the second converging mirror, is reflected to the receiving area, and is converted into energy or electric signals in other forms. The invention is used for improving the convergence ratio and reducing the installation cost of related equipment.

The invention discloses a high efficiency and energy-saving dual-axis groove type photovoltaic automatic tracking system. The system comprises a groove type condensation component and a dual-axis tracking device. The groove type condensation component comprises a groove type condensation plate and a groove type condensation battery. The groove type condensation plate is provided with a condensation groove. The groove type condensation battery is a bar-shaped battery with a length direction. The groove type condensation battery is located above the condensation groove and is fixed. The length direction of the groove type condensation battery is consistent with the extending direction of the condensation groove. The groove type condensation component is arranged on the dual-axis tracking device, and the length direction of the groove type condensation battery is arranged in the east-west direction. The dual-axis tracking device is used to track the change of the azimuth and the height angle of the sun and control the orientation change of the groove type condensation component according to the change of the azimuth and the height angle of the sun. According to the invention, the number of times of solar tracking is effectively reduced; the frequency of start and stop of a motor is reduced; and the requirement for tracking accuracy is reduced.