Electricity: motive power systems – Automatic and/or with time-delay means – Radiant energy
Patent
1996-01-24
1997-09-02
Masih, Karen
Electricity: motive power systems
Automatic and/or with time-delay means
Radiant energy
318648, 160 5, 1601661, 2502034, G05B 500
Patent
active
056636210
ABSTRACT:
A system for the automatic regulation of daylight admitted into a room, specifically intended for daylighting applications. A preferred embodiment, system 10, consisting of a conventional control unit 11, a conventional exterior brightness sensor 12, and a conventional electronically controlled window covering 13, operates to block direct solar radiation while admitting substantial diffuse illumination. Control unit 11, brightness sensor 12, and window covering 13 are interconnected in a known manner to enable control unit 11 to register the brightness of the external illumination, and to actuate window covering 13. Control unit 11 consists of a conventional microcontroller 14, a conventional real-time clock/calendar 15, and a conventional Non-Volatile Memory (NVM) 16. Microcontroller 14, clock/calendar 15, and NVM 16 are interconnected in a known manner to enable microcontroller 14 to register the output of clock/calendar 15, and to exchange data with NVM 16. NVM 16 holds pre-stored data which defines a desired setting of window covering 13 as a function of the time of the day and the day of the year, for the prevailing latitude, longitude, and window azimuth orientation. In the preferred embodiment, this desired setting is one which will block the admission of incident direct solar radiation, while still admitting substantial diffuse illumination. Microcontroller 14 periodically registers the exterior brightness as measured by sensor 12, registers the data stored in NVM 16, estimates a desired setting of window covering 14 on the basis of these data, and actuates window covering 13 to the desired setting.
REFERENCES:
patent: 3294152 (1966-12-01), Kuijvenhoven
patent: 3646985 (1972-03-01), Klann
patent: 4396831 (1983-08-01), Yamada
patent: 4622470 (1986-11-01), Makino
patent: 4742813 (1988-05-01), Riehl
patent: 4769531 (1988-09-01), Malek
patent: 4841672 (1989-06-01), Nebhuth
patent: 4856574 (1989-08-01), Minami et al.
patent: 5142133 (1992-08-01), Kern
patent: 5164856 (1992-11-01), Zhang et al.
patent: 5237169 (1993-08-01), Grehant
Lee, E. S.,S. E. Selkowitz, F. M. Rubinstein, J. H. Klems, L. O. Beltran, D. L. DiBartolomeo, and R. Sullivan, "Developing Integrated Envelope and Lighting Systems for Commercial Buildings", LBL Report No. 35412, Mar. 1994, Lawrence Berkeley Laboratory, Berkeley, CA.
Lee, E. S., S. E. Selkowitz, F. M. Rubinstein, J. H. Klems, L. O. Beltran, and D. L. DiBartolomeo, "A Comprehensive Approach to Integrated Envelope and Lighting Systems for New Commercial Buildings", LBL Report No. 35732, May 1994, Lawrence Berkeley Laboratory, Berkeley, CA.
"These Shades Know How To Keep Cool", Popular Science, vol. 247, No. 4, Oct. 1995, p. 55.
Advertisement for Omni Vision solar tracker manufactured by OmniVision, 13689 Mono Way, Sonora, CA, 95370; advertisement appearing in Solar Today, vol. 10, No. 1, Jan./Feb. 1996, p. 42.
Advertisement for "Sky Wizard" system, sold by Orion Telescope Center, P.O. Box 1815, Santa Cruz, CA 95061-1815, advertisement appearing in Orion Telescope Center catalog No. 961, Jan.-Apr. 1996, p. 86.
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