Timed operating system for roller shutters and blinds - has radio-controlled digital=analog time display and computer to control opening and closing as function of position of sun

摘要

The time is shown by a digital-analog display controlled by a single-purpose computer or a microprocessor. The display is synchronised w.r.t. time, day, month and year by a radio signal. A basic program can be used to control opening and closing times in accordance with the position of the sun. Manual time setting may be incorporated using a rotary knot to generate electrical pulses or a piezoelectric pressure-sensitive button. ADVANTAGE - As simple to operate as setting alarm clock.