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17 results about "Dawn" patented technology

Dawn, from an Old English verb dagian: "to become day", is the time that marks the beginning of twilight before sunrise. It is recognized by the appearance of indirect sunlight being scattered in the atmosphere, when the centre of the Sun's disc reaches 18° below the horizon. This dawn twilight period will last until sunrise (when the Sun's upper limb breaks the horizon), as the diffused light becomes direct sunlight.

Solar radiation prediction method and device based on multi-source satellite data fusion, electronic equipment and storage medium

The invention relates to the technical field of meteorological observation, in particular to a solar radiation prediction method and device based on multi-source satellite data fusion, an electronic device and a storage medium. And an end-to-end deep learning prediction model is constructed, so that a dark start prediction blind area caused by visible light deficiency before and after sunrise is effectively overcome, continuous prediction in all days, especially in a dawn period, is realized, and the prediction coverage capability is expanded. And secondly, regional adaptability parameter calibration is carried out on the physical inversion model, so that the localization precision of a historical reference radiation field is improved, and a more reliable training basis is provided for the prediction model. Finally, the output solar radiation prediction product with high temporal-spatial resolution and physical consistency can directly support key businesses such as photovoltaic power station output prediction and power grid climbing management, and the practicability and reliability of the prediction result are enhanced.
Owner:BEIJING HONG TECH CO LTD

Monitoring method and system for early fire point of forest fire disaster through satellite remote sensing

The invention belongs to the field of satellite remote sensing fire monitoring, and discloses a satellite remote sensing forest fire initial fire point monitoring method, which comprises the following steps: acquiring satellite data as input data; reading the zenith angle of the sun in the satellite data, and judging the time period as a day time period, a night time period and a morning and night junction time period; the solar zenith angle, the sensor zenith angle and the like need to be read in daytime period data so as to filter solar flares; carrying out simple cloud detection on data in all time periods by utilizing 11-micron channel brightness temperature and 11-4-micron channel brightness temperature, expanding an adaptive window by taking a suspected initial fire point pixel as a center, and calculating 4-micron channel brightness temperature difference, 11-micron channel brightness temperature difference and 4-11-micron channel brightness temperature difference of a background pixel by utilizing a time sequence method; and counting the mean value and the standard deviation of the background pixels, and confirming and extracting a forecast initial fire point by using a normal distribution starting point algorithm. According to the method, the timeliness and accuracy of early warning of the fire disaster are improved, and important technical support is provided for forest fire prevention decision making.
Owner:广州气象卫星地面站(广东省气象卫星遥感中心)

Landscape light (dawn 002)

ActiveCN309787172SMechanical engineeringDawn
1. The name of the design product: landscape lamp (dawn 002). 2. The use of the design product: for outdoor lighting. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. The bottom of the design product is not easy to see or not visible when used, omit design 1 view, design 2 view. 6. Design 1 is designated as the basic design.
Owner:ZHONGSHAN JUNZHI LIGHTING CO LTD

Linkable lighting applications

A microwave motion detection system and lighting applications. Certain types of lighting devices turn on / off and may respond to certain triggers (e.g., motion-activation, dusk-to-dawn, etc.), etc. Such lighting devices may be battery powered and have minimal on-board circuitry. Coordinating these lighting devices together to provide zoned lighting functionality has not been commercially successful. Various aspects of the present disclosure are directed to “smart enough” lighting solutions. Smart enough lighting solutions may include link-based connectivity that enables coordination between peer lighting devices. The decentralized system may enable groups of smart enough lighting devices to communicate salient events (triggering conditions and operational parameters) across a mesh network, without centralized coordination. For example, each of the smart enough lighting devices may use point-to-point communication protocols to directly communicate with its peer devices, relaying information throughout the group.
Owner:INFINITY X1 LLC

Landscape light (dawn 005)

ActiveCN309886669SEngineeringDawn
1. The name of the design product: landscape lamp (dawn 005). 2. The use of the design product: for outdoor lighting. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. The bottom of the design product is not easy to see or not visible when used, omit design 1 view, design 2 view. 6. Design 1 is designated as the basic design.
Owner:ZHONGSHAN JUNZHI LIGHTING CO LTD

Handbag (in a corner of the classroom in the dawn)

ActiveCN309715193SMechanical engineeringDawn
1. The name of the designed product: a handbag (in the corner of a classroom in the morning light). 2. The use of the designed product: for a handbag. 3. The design points of the designed product: in the combination of shape, pattern and color. 4. The picture or photo that best shows the design points: perspective view. 5. The design contains colors.
Owner:TIANJIN NORMAL UNIVERSITY

Dynamic dimming method and system for harbor storage yard

PendingCN121861271AElectrical apparatusCharacter and pattern recognitionAstronomical algorithmHeat map
The invention relates to the technical field of port illumination adjustment, in particular to a port storage yard dynamic dimming method fusing an astronomical algorithm and operation scene recognition, which comprises the following steps: constructing a background illumination model dynamically changing along with time; constructing a storage yard operation situation thermodynamic diagram; constructing a demand mapping rule base, and performing strategy matching on the mapping rule base and the job situation thermodynamic diagram; and constructing a lamp control model, and introducing multi-objective optimization calculation to generate a final control instruction. According to the port storage yard illumination multi-dimensional dynamic dimming method integrating the astronomical algorithm and the operation scene recognition, a cooperative control technology integrating the astronomical algorithm (time dimension) and the AI scene recognition (space dimension) is adopted, only low power is maintained in a storage yard operation area in the daytime, operation illumination is automatically improved to a high-activity area at night, energy conservation and safety are both considered, and the method is suitable for large-scale popularization and application. And a dual smoothing mechanism of smoothing in the morning and evening transition period and real-time dimming flicker prevention is designed, so that sudden brightness change or flicker is avoided, and the visual fatigue of operators is effectively reduced.
Owner:CHINA COMM CONSTR FIRST HARBOR CONSULTANTS

Dawn (single, double)

ActiveCN309731709SMechanical engineeringDawn
1. Name of the designed product: floor lamp (Dawn - single head, double head). 2. Use of the designed product: for indoor lighting. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: Design 1 perspective view 1. 5. Design 1 is designated as the basic design.
Owner:NEXOL LIGHTING (HUIZHOU) CO LTD

Dawn linear pendant

1. Name of the designed product: ceiling lamp (Dawn linear). 2. Use of the designed product: for indoor lighting. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.
Owner:NEXOL LIGHTING (HUIZHOU) CO LTD

Building thermoelectric intelligent regulation and control system and method based on intense radiation environment

The invention discloses a building thermoelectric intelligent regulation and control system and method based on an intense radiation environment, relates to the technical field of building energy utilization, and solves the problem that a building indoor thermal environment is out of control due to the fact that a traditional Trombe wall is easily overheated in the intense radiation environment, and the building thermoelectric intelligent regulation and control system comprises a power generation judgment module, a power utilization selection module and a temperature regulation and control module. The power generation judgment module is used for judging whether a photovoltaic power generation panel in the to-be-detected building meets a power generation condition or not according to the current time of the position of the to-be-detected building and morning and night data; the power utilization selection module is used for analyzing and selecting a power supply mode of the building to be tested according to the real-time power generation power and the real-time power utilization power, and the real-time electric heat preservation layer temperature of the electric heat preservation layer obtained through analysis is sent to the temperature regulation and control module; and the temperature regulation and control module is used for regulating and controlling the real-time temperature of the to-be-measured building based on the morning and night data and the real-time temperature data. According to the invention, thermoelectric regulation and control of the internal temperature of the building are realized in a strong radiation environment.
Owner:TIBET UNIV

Method and system for determining nighttime temperature using a photovoltaic module

Method and system for determining a night temperature using a photovoltaic module This description relates to a method for determining an ambient night temperature Ta' in a system comprising a photovoltaic module (104), the method comprising: a) determining, using an electronic processing device (110), from measurements of the short-circuit current Isc and measurements of the open-circuit voltage Voc of the photovoltaic module, a first value Ta1 representative of the ambient outdoor temperature in the vicinity of dawn on a first day and a second value Ta2 representative of the ambient outdoor temperature in the vicinity of dusk on the first day;(etb) calculate, using the electronic processing device, from the first value Ta1 and the second value Ta2, using a predefined mathematical function Ta', a set of one or more values ​​representative of the evolution of the ambient nighttime outside temperature during the night following said first day. Figure for the abbreviation: Fig. 2;
Owner:COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES +1

Dawn pendant

1. Name of the designed product: ceiling lamp (Dawn circle). 2. Use of the designed product: for indoor lighting. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.
Owner:NEXOL LIGHTING (HUIZHOU) CO LTD

Cold temperate zone forest canopy temperature inversion method and system

The invention discloses a cold temperate zone forest canopy temperature inversion method and system, and belongs to the technical field of forest micrometeorological monitoring. The method comprises the following steps: acquiring low-level and high-level air temperature time sequences in a forest; inputting the low-level temperature sequence into a baseline linear regression model to obtain a baseline predicted value; constructing a reversal index by using a vertical temperature gradient, a known curvature characteristic and a night time window combination; inputting the index into a gating function and a residual corrector to obtain a gating function value and a residual correction value; and combining the baseline predicted value with the gated residual error correction value to generate a final inversion result. The method can also comprise the following steps of: deriving seasonal discrimination characteristics by utilizing multi-point air temperature, judging the current phenological snow accumulation state, and loading a corresponding stateful parameter set for configuring the whole model. According to the invention, inversion precision and seasonal adaptability can be improved.
Owner:JIANGSU FOOD & PHARMA SCI COLLEGE

Energy system for a computing satellite in a dawn-dusk orbit

This invention discloses an energy system for a computing satellite in a dawn-dusk orbit, comprising a power generation unit, an energy storage unit, and a power control unit. The power generation unit includes a main battery array and an auxiliary battery array; the energy storage unit includes payload and platform battery packs; and the power control unit includes payload and platform power control units. The main battery array employs a deployable concentrating solar array, with its output connected to the payload power control unit to power the computing payload and charge the payload battery pack. The auxiliary battery array's output is connected to the platform power control unit to power the platform equipment and charge the platform battery pack. The discharge terminals of the two battery packs supply power to their respective loads through corresponding power control units. The dual power control units dynamically adjust the charging and discharging strategy and power allocation according to the orbital phase. This invention, through a physically isolated dual-channel power supply architecture, solves the problems of periodic energy interruption and load interference in dawn-dusk orbits, achieving independent and stable power supply for high-power computing payloads and highly reliable platform equipment.
Owner:BEIJING ORBITAL CHENGUANG TECHNOLOGY CO LTD

A solar radiation prediction method and device based on multi-source satellite data fusion, electronic equipment, and storage medium

The present application relates to the technical field of meteorological observation, and more particularly to a solar radiation prediction method and device based on multi-source satellite data fusion, electronic equipment and storage medium, the solar radiation prediction method based on multi-source satellite data fusion provided by the present application firstly introduces the infrared brightness temperature data of the stationary satellite, and constructs an end-to-end deep learning prediction model, effectively overcoming the dark start prediction blind area caused by the lack of visible light before and after sunrise, realizing continuous prediction throughout the day, especially during the dawn period, and expanding the prediction coverage capability. Secondly, by calibrating the regional adaptability parameters of the physical inversion model, the local accuracy of the historical reference radiation field is improved, providing a more reliable training basis for the prediction model. Finally, the output high spatio-temporal resolution and physically consistent solar radiation prediction product can directly support photovoltaic power station output prediction and power grid climbing management and other key businesses, enhancing the practicality and reliability of the prediction results.
Owner:BEIJING HONG TECH CO LTD