Abstract:
Remote control system for electric or electronic appliances comprising at least one remote control that can be actuated by a user and at least one electronic apparatus installed on each of said appliances and intended to communicate by air with said remote control to actuate a status change of the appliance selected by the user, characterized in that said electric apparatus of each appliance comprises at least: - a transmitter (13) intended to transmit a message by air to the remote control; - a receiver (14) intended to receive and decode a message sent by air by the remote control; and - an identification address (16) that said electronic apparatus is capable of transmitting by the transmitter, and in that at least one remote control comprises: - a transmitter (17) intended to transmit a message by air to the electric or electronic appliances, - a receiver (18) intended to receive and decode a message sent by air by at least one of said appliances and having an aiming axis to be aimed towards an appliance to be controlled; and at least one key or similar device to allow the user to send an actuation command to a selected appliance, wherein the remote control receiver is provided with a directional receiving device to allow the reception only of the signals coming from sources located outside a cone with axis coinciding with the remote control aiming axis.
Abstract:
The method is based upon the time detection of some biochemical parameters of microbial metabolism such as acidification of the environment, production of carbon dioxide, increase of turbidity, and decrease of dissolved oxygen. Such parameters are detected in a thermostated cell containing particular microorganisms and a composition having a toxic effect. The detected parameters have a different course with respect to those detected in a thermostated control cell where the toxic composition is left out. The decrease of the values of the normal microbial metabolism is proportional to the amount of toxic composition. Such a method can then be used to detect without the chemical analysis of the chassic methods any amount of a toxic composition in water. To this end microorganisms properly selected for their sensitivity to different toxic compositions are used.
Abstract:
Remote control system for electric or electronic appliances comprising at least one remote control that can be actuated by a user and at least one electronic apparatus installed on each of said appliances and intended to communicate by air with said remote control to actuate a status change of the appliance selected by the user, characterized in that said electric apparatus of each appliance comprises at least: - a transmitter (13) intended to transmit a message by air to the remote control; - a receiver (14) intended to receive and decode a message sent by air by the remote control; and - an identification address (16) that said electronic apparatus is capable of transmitting by the transmitter, and in that at least one remote control comprises: - a transmitter (17) intended to transmit a message by air to the electric or electronic appliances, - a receiver (18) intended to receive and decode a message sent by air by at least one of said appliances and having an aiming axis to be aimed towards an appliance to be controlled; and at least one key or similar device to allow the user to send an actuation command to a selected appliance, wherein the remote control receiver is provided with a directional receiving device to allow the reception only of the signals coming from sources located inside a cone with axis coinciding with the remote control aiming axis.