Controlling heating system responsive to outside temp. measurement - averaging temp. readings over 24-hour periods for correction of storage heater control signal

摘要

The outdoor sensor (1) converts the temp. value into an electrical resistance which is digitised (2) and stored (3) together with a number of earlier measurements. An average value is obtd. (4) and corrected (5) by the addn. of a quantity representing the temp. trend. The corrected average is used, together with a preselected quantity (6) input either automatically or manually, in computation (7) of a control signal for a storage heater (8). Two variants of the memory management are disclosed involving either linear interpolation over 24 hours or cyclic overwriting with fresh data. ADVANTAGE - Control is better adapted to atmospheric conditions for night-storage heating systems and others having considerable inertia.