Programmable timer with daylight compensation

Details Programmable timer with daylight compensation Programmable timer with daylight compensation

G - Physics

04

G

G04G 15/00 (2006.01) H01H 43/00 (2006.01)

Patent

CA 2329121

A programmable timer for switching electrical devices on and off compensated by calculations based on the length of day, as well as other programmable conditions. The timer consists of two major parts: a handheld Master Programmer that is used for programming Timer Modules; and a Timer Module which is programmed from the handheld Master Programmer and provides the timing and power control. A single Master Programmer can program multiple Timer Modules. The handheld Master Programmer includes an input device, an LCD, a microcontroller and a means fox programming the Timer Modules. The user interface provides all necessary parameters to the microcontroller. The Timer Module has daylight compensation" automatic daylight savings compensation, multiple on off sequences per day, a security feature, brownout and blackout indicator and on-board software diagnostics and error handler. Programming can be accomplished via one of the following methods: an input port, an infrared link or an RF (Radio Frequency) link. This Timer Module can be used either indoors or outdoors.

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