39 results about "Overcast sky" patented technology

A monitoring system and method for monitoring performance of individual powers sources in a distributed power source system. A monitoring module is coupled to each of the power sources, or to each string of serially connected power sources, to monitor and collect data regarding current, voltage, temperature and other environmental factors at the power source. The collected data is transmitted over a power line to a central analysis station for analysis. Data collected from each source indicates malfunction or degradation at the source. Comparison of data collected from adjacent sources filters for environmental factors impacting neighboring sources such as cloudy days for a solar panel. Comparison of data collected from the same source at different times indicates soiling or degradation of the source with time or periodic events such as a moving shade from an adjacent building.

The present invention provides an apparatus that includes a color and polarization image capturing section 201, a whole sky polarization map getting section 202, a weather determining section 203, a fine-weather sky part separating section 204, a cloudy-weather normal estimating section 207, and a pseudo 3D image generating section 208. The apparatus obtains polarization information outdoors with the polarization state of the sky taken into account, and estimates surface normal information at an object's surface on a two-dimensional image, thereby generating a surface normal image. Using that normal image, the apparatus divides the object into multiple ranges, extracts three-dimensional information and generates a viewpoint changed image, thereby generating a pseudo 3D image.

The invention belongs to the technical field of augmented reality, and particularly relates to a water conservancy project display interaction method and system based on augmented reality. The methodcomprises the steps of acquiring original exploration measurement data; processing the original exploration measurement data to obtain a three-dimensional geological model; acquiring scene data of a site where a project is located according to the original exploration measurement data, building a three-dimensional scene model in combination with the three-dimensional geological model, and performing water body simulation display through texture mapping; and performing interactive control through gesture and interface buttons and the current three-dimensional scene model by utilizing a somatosensory control technology. According to the method and the system, a virtual scene and a real scene are fused; a model shadow can be generated; a relatively good immersion sense can be brought to a user; good reality is achieved; weather conditions such as rain, snow, overcast sky, clear sky and the like are added; the real state of the water conservancy project in the natural state is better simulated and is closer to the actual condition; a more intuitive information transmission mode and friendly interactive experience are brought to the user; and the participation degree of the user is enhanced.

This invention discloses a sort of system which can heat supply and heating in the integral method that the solar power connects with the electromagnetism. It consists of solar power collector, the insulation water can, the radiator, the water implement. It is characterized in that the one end of the solar power collector connects with the inlet pipe; another end connects with the insulation water can. The outlet of the insulation water connects with an electromagnetic heater; the electromagnetic heater connects with the radiator and the inlet of the water implement, the outlet pipe of the radiator connects with the insulation water by the water pump, another way of the inlet pipe connects with the water implement. This invention shall use hot water produced with the solar energy and then reheat by the electromagnetism. It resolves the problem of hot water used in overcast sky or in winter, and can carry out heating in the winter of southward. It is characterized in that high thermal efficiency of the whole system, simple technique, convenient fixing, handsome appearance, remarkable effect of energy conservation.

A lens-fitted photographic film unit is provided with a first photography mode and a second photography mode that are for non-flash photographing. In order to photograph in daylight, the first photography mode is selected by operating a mode selection lever. A mode indicator does not operate in the first photography mode. In order to photograph under overcast sky or in a lighted indoor place, the second photography mode is selected by operating the mode selection lever. The mode indicator lights up when the second photography mode is set, and blinks when a release button is depressed to photograph. By lighting and blinking, the mode indicator informs a user of that the second photography mode is selected and photographing has been performed.

The invention discloses a method for preventing cold damage to rice, preparing dry weed or other burning material around paddy field, burning the material when there is continuous overcast sky to make smoke and form artificial cloud layer to prevent low temperature light emitted by sunlight until high temperature light is emitted. This invention can maintain needed temperature in growing process, and is good for plump seed and guarantee stable and high productivity. The technology of this invention is simple and suitable to spread.

A lens-fitted photographic film unit is provided with a first photography mode and a second photography mode that are for non-flash photographing. In order to photograph in daylight, the first photography mode is selected by operating a mode selection lever. A mode indicator does not operate in the first photography mode. In order to photograph under overcast sky or in a lighted indoor place, the second photography mode is selected by operating the mode selection lever. The mode indicator lights up when the second photography mode is set, and blinks when a release button is depressed to photograph. By lighting and blinking, the mode indicator informs a user of that the second photography mode is selected and photographing has been performed.

The invention discloses a novel photovoltaic daylighting skylight. The novel photovoltaic daylighting skylight comprises an outer ring, a supporting frame, a solar storage plate, a rotating assembly and an illuminating lamp; the outer ring is of a circular structure, the inner wall of the outer ring is formed by splicing a plurality of daylighting flat plates, the supporting frame is arranged in the outer ring, and a plurality of pieces of flat glass are laid on the supporting frame; the rotating assembly is arranged on the inner wall of the outer ring, and the rotating assembly is connected to a back face of the solar storage plate; the illuminating lamp is arranged below the solar storage plate; and the rotating assembly is controlled by a remote controller to rotate up and down. According to the novel photovoltaic daylighting skylight, the indoor daylighting rate is guaranteed through light rays refracted by the daylighting flat plates with good refractivity as much as possible in the daytime, redundant solar energy stored in the daytime is converted into light energy through the solar storage plate at night or in cloudy days, the angle can be rotated, indoor illumination is provided, the daylighting performance is good, operation is convenient, sound insulation and heat preservation are achieved, the waterproof performance is good, and energy conservation and environment protection are achieved.

The invention discloses an externally-hung automatic adjustment solar device which comprises a mounting plate and a transverse plate, the mounting plate is fixedly mounted in a wall body, the transverse plate is fixedly mounted on the side wall of the mounting plate, a first fixing pipe is fixedly mounted on the side wall of the mounting plate, and a first sealing plug is slidably connected into the first fixing pipe; and a first push rod is fixedly installed in the center of the left end face of the first sealing plug, the other end of the first push rod penetrates through the side wall of the first fixing pipe and is rotationally connected with a rotating rod, and an L-shaped plate is fixedly installed on the bottom end face of the left end of the first fixing pipe. According to the invention, at night and in cloudy days, the memory metal spring is cooled and contracted again, so that the solar cell panel rotates anticlockwise to restore the original shape, namely, the light absorption surface of the solar cell panel is in a horizontal downward state, corrosion caused by rainwater falling on the light absorption surface of the solar cell panel is avoided, and dust falling on thelight absorption surface of the solar cell panel is reduced.

The invention relates to a sun tracking control method suitable for shade and sun changes. The sun tracking control method is characterized by comprising the following steps: S1, a pixel coordinate system xOy with longitude and latitude numerical values as variables is established at a control terminal; S2, electric signal connection is established between the control terminal and a database updated in real time; a time unit of the control terminal identifies whether to be daytime, and if to be daytime and a sunny day, the control terminal starts a photoelectric tracking subprogram in the suntracking device, if to be daytime and a cloudy or overcast day, a sun track subprogram in the sun tracking device is started, and if to be night, the sun tracking device is controlled to stop runningby the control terminal; S3, when the sun track subprogram needs to be upgraded, maintained and repaired in the daytime, the control terminal starts a photoelectric tracking subprogram in the sun tracking device; and S4, a limit switch on the solar tracking device can connect or disconnect a control circuit of the solar tracking device. Accurate sun position tracking in cloudy and overcast days iseffectively realized, and the solar energy utilization rate is improved.

The invention discloses a compressed air heat storage and power generation system, and belongs to the field of clean energy utilization. The system comprises a solar heat absorber for absorbing sunlight to heat internal air and releasing high-temperature air, a heat storage device for storing heat of the high-temperature air, a turbine for being pushed by high-temperature compressed air to do work, a generator driven by the turbine to generate power, a fan, a first-stage heat regenerator and a second-stage heat regenerator for heating the compressed air through the high-temperature air, a compressor for compressing and pressurizing the filtered air, a filter for filtering impurities in the air, corresponding connecting pipelines, and a plurality of valves arranged on the connecting pipeline. When the lighting condition is good in daytime, the system can operate in a power generation mode and a heat storage mode at the same time; and at night or in cloudy days without sun illumination, the system can operate in a heat release mode to generate power. According to the system, by adopting air as a working medium to couple solar heat and a heat storage technology, heat storage and power generation can be realized, and the system is simple, long in service lifetime, clean and pollution-free.

The invention provides a combined heat and power supply solar device. The combined heat and power supply solar device comprises a stand column type tracking rack, a north-south tracking transmission part, an east-west tracking transmission part, a light-heat conversion suite, a photovoltaic power generation panel suite, a hot water storage and supply system component and a power storage and supply tracking control cabinet. According to the combined heat and power solar device and the sun-oriented motion trail tracking control method, the inherent defects of sun-oriented position tracking are overcome, and the combined heat and power solar device achieves the effects and purposes of light condensation, heat collection, external hot water supply (or external steam supply) and external power supply at the same time. According to the sun-oriented movement trajectory tracking control method, even in cloudy days, energy of infrared spectrum bands and the like in sunlight can be focused to the heat and heat part to provide hot water; the invention has the advantages of compact structure, full utilization of illumination space, simple equipment, strong wind load resistance, simple and reliable operation of a tracking control method and related tracking parts, low power consumption and high total efficiency of solar energy utilization.

The invention discloses a method for measuring the azimuth of the sun, which is based on a sun azimuth measurement sensor. The azimuth of sunlight can be judged according to the shadow projected by aprojection needle on an annular photoresistor array, and the azimuth indicated by the sensor can be mapped according to azimuth angles corresponding to photoresistors numbered 1-N; in cloudy days without sunlight, the resistance of each photoresistor tends to be consistent due to small shadow identification degree, so that the sampled voltages are basically equal; and the sensor can output an invalid value so as to prevent frequent mis-adjustment when the sensor is applied to a solar cell panel azimuth adjusting mechanism.