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公开(公告)号：WO2018227305A1
公开(公告)日：2018-12-20
申请号：PCT/CA2018/050727
申请日：2018-06-15
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： ASHDOWN, Ian Edward
Abstract: Spectral irradiance distributions are calculated within a virtual environment based on arbitrary light source spectral power distributions. Architectural, horticultural and aquacultural lighting control systems use the calculated results to control both the intensity and spectral power distribution of the electric light sources. Energy consumption may be minimized while maintaining optimal occupant visual comfort and plant health.
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公开(公告)号：WO2022006654A1
公开(公告)日：2022-01-13
申请号：PCT/CA2021/050372
申请日：2021-03-22
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： ASHDOWN, Ian Edward
Abstract: Melanopic dose rate and dose are calculated in a virtual environment. A computer generated model of an actual or planned building is used as the virtual environment. Indirect and direct spherical irradiances are calculated using convex polyhedra throughout the virtual environment, and each is multiplied by a melanopic conversion factor. The two are added, then adjusted for a human's angular responsivity and age. Building design features or lighting devices may be adjusted to provide a required melanopic dose rate. A camera is used to capture a panoramic image, which is calibrated to tristimulus values, and used with the spectral power distribution of the light sources to derive the melanopic dose rate.
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公开(公告)号：WO2019023800A1
公开(公告)日：2019-02-07
申请号：PCT/CA2018/050938
申请日：2018-08-01
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： ASHDOWN, Ian Edward , SCOTT, Wallace Jay
Abstract: A biological lighting system to provide temporally- and spatially-modulated photon flux output and spectral power distributions to plants on a circadian and circannual basis, or circadian and life cycle basis, to maximize effective and efficient growth in a horticultural setting. The photon flux or irradiance output and the spectral power distribution are modulated to match circadian and circannual rhythms, with individual or multiple luminaires controlled through one or more controllers. Different lighting spectra can be employed depending on the direction of illumination. The photon flux or irradiance output and the spectral power distribution may be set as best suited for any particular plant species, and the system is also useful for raising animals.
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公开(公告)号：WO2022006675A1
公开(公告)日：2022-01-13
申请号：PCT/CA2021/050935
申请日：2021-07-08
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： ASHDOWN, Ian Edward
Abstract: Given the complexity of architectural spaces and the need to calculate spherical irradiances, it is difficult to determine how much ultraviolet radiation is necessary to adequately kill airborne pathogens. An interior environment with luminaires is modeled. Spherical irradiance meters are positioned in the model and the direct and indirect spherical irradiance is calculated for each sensor. From this, an irradiance field is interpolated for a volume of interest, and using known fluence response values for killing pathogens, a reduction in the pathogens is predicted. Based on the predicted reduction, spaces are built accordingly, and ultraviolet luminaires are installed and controlled.
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公开(公告)号：WO2019183718A1
公开(公告)日：2019-10-03
申请号：PCT/CA2019/050359
申请日：2019-03-22
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： ASHDOWN, Ian Edward , SCOTT, Wallace Jay
Abstract: Laser light emanates from optical components that are mounted on a substrate, each optical component being coupled to an optical fiber that delivers laser radiation combined from multiple lasers. A linear or elliptical holographic diffuser is located to diffuse the light emanating from the optical components. The laser wavelengths excite plant photopigments for predetermined physiological responses, and the light source intensities may be temporally modulated to maximize photosynthesis and control photomorphogenesis responses. Each laser is independently controlled.
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Patent Agency Ranking
公开(公告)号：CA2774261A1
公开(公告)日：2012-10-14
申请号：CA2774261
申请日：2012-04-16
Applicant: SUNTRACKER TECHNOLOGIES LTD
Inventor： ASHDOWN IAN
Abstract: A method and apparatus to simulate the performance of a predictive daylight harvesting system is disclosed herein. The system comprises a controller that receives real-time input data from daylight photosensors, occupancy sensors, timers, personal lighting controls, utility energy consumption reports, and local weather reports, continually calculates "what-if" scenarios based on a representation of the illuminated interior and exterior environments to predict the best electric lighting and fenestration control configuration that meets user-defined requirements while maximizing annual energy savings, and controls the electric lighting and automated fenestration devices accordingly.
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公开(公告)号：US11931470B2
公开(公告)日：2024-03-19
申请号：US18548866
申请日：2023-03-24
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： Ian Edward Ashdown
IPC: A61L2/08
CPC classification number: A61L2/084
Abstract: Visible light disinfection is a healthcare technology wherein violet light is used to inactivate pathogens such as bacteria, fungi, and viruses. The present invention overcomes the limitations of continuous irradiance in whole-room environments by pulse width modulation of the light sources and increasing the instantaneous irradiance while maintaining average irradiance and hence light power requirements. The invention further discloses the use of multispectral light sources wherein the pulse modulation frequencies are synchronized and the phase of the spectral components are offset in order to maximize synergistic or antagonistic responses to intracellular chromophore excitation.
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公开(公告)号：US20220191993A1
公开(公告)日：2022-06-16
申请号：US17687378
申请日：2022-03-04
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： Ian Edward Ashdown , Wallace Jay Scott
Abstract: A biological lighting system to provide temporally- and spatially-modulated photon flux output and spectral power distributions to plants on a circadian and circannual basis, or circadian and life cycle basis, to maximize effective and efficient growth in a horticultural setting. The photon flux or irradiance output and the spectral power distribution are modulated to match circadian and circannual rhythms, with individual or multiple luminaires controlled through one or more controllers. Different lighting spectra can be employed depending on the direction of illumination. The photon flux or irradiance output and the spectral power distribution may be set as best suited for any particular plant species, and the system is also useful for raising animals.
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公开(公告)号：US20210248466A1
公开(公告)日：2021-08-12
申请号：US17169849
申请日：2021-02-08
Applicant: SUNTRACKER TECHNOLOGIES LTD.
Inventor： Ian Edward Ashdown , Oleksandr Ponomarov
Abstract: A system and method for a neural network that is trained to recognize patterns in the exitance convergence behaviour of a radiosity equation being solved for a set of finite element environments, and subsequently employed to monitor and predict the exitance convergence behaviour of novel finite element environments. The neural network is trained with feature vectors representing partial snapshots of exitance vectors at various iterations in a radiosity calculation. The feature vectors are related to numbers of iterations that can be skipped by making approximate calculations instead of performing the iterations. In use, when a radiosity equation is being solved, the neural network identifies feature vectors generated during the calculations that signify that a certain number of iterations can be skipped by making an approximate calculation.
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公开(公告)号：US20210088382A1
公开(公告)日：2021-03-25
申请号：US17015496
申请日：2020-09-09
Applicant: Suntracker Technologies Ltd.
Inventor： Ian Edward Ashdown
Abstract: A means to automate, using fuzzy logic, the classification of spectral power distributions of optical radiation for lighting systems, and more particularly horticultural lighting systems, is presented. After inputting the spectral power distribution of optical radiation from one or more light sources, radial basis function weights for the spectral power distribution are determined and fuzzified preparatory to fuzzy logic classification. Fuzzy if-then rules are then applied, and an aggregate of the rule votes from the fuzzy if-then rules applied is used to classify the spectral power distribution. The system utilizes a spectral sensor, a fuzzifier module, a fuzzy rule database, fuzzy rule engine, an output fuzzifier module, and a means of displaying the spectral power distribution classification.
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