Remotely-controllable relays
AssigneeEnertec
InventorsArnaud de Montgolfier, Marc Laprie
Life of this patent
Estimating the term…
Abstract
A ripple control relay is arranged (i) to delay implementation of a received command until the end of a predetermined time interval following reception of the command; (ii) to delay implementation as in (i), and to implement the complementary command automatically after a further predetermined interval; or (iii) to repeat the sequence as in (ii) cyclically.
Claims10
A remotely-controllable relay for effecting an operation in response to a control signal in the form of an alternating ripple voltage superimposed upon an alternating power supply voltage in an electric-power distribution network, comprising:
- means arranged to store predetermined parameters of said operation and said control signal, said parameters including an indication of a preselected period of delay required between reception of said control signal and occurrence of said operation, the value of a predetermined constant, and the value of a predetermined unit time interval, said period of delay being equal to the product of said constant and said unit time interval;
- means responsive to said storage means and coupled to said network to detect the transmission of a control signal conforming to said stored predetermined parameters relating thereto;
- means responsive to said detection means and said storage means and arranged to determine when said period of delay has elapsed following said transmission;
- and
- means responsive to said delay determining means and said storage means and arranged to effect said operation in accordance with said stored predetermined parameters relating thereto.
A method of effecting an operation in response to a control signal in the form of an alternating ripple voltage superimposed upon an alternating power supply voltage in an electric-power distribution network, comprising the steps of:
- storing predetermined parameters of said operation and said control signal, said parameters including an indication of a preselected period of delay required between reception of said control signal and occurrence of said operation, the value of a predetermined constant and the value of a predetermined unit time interval, said period of delay being equal to the product of said constant and said unit time interval;
- detecting the transmission of a control signal conforming to said stored predetermined parameters relating thereto;
- determining when said period of delay has elapsed following said transmission;
- and thereupon
- effecting said operation in accordance with said stored predetermined parameters relating thereto.
Dependencies are inferred from the claim text.