Communication Method in a System Comprising a Power Supply and Communication Entity and a Home Automation Actuator

A communication method for a power supply and communication entity (IMS) comprising two electric terminals (b1, b2) making it possible

• to power a home automation actuator (ACT) comprising an electric motor driving a moving element in a building, and
• to communicate with this actuator (ACT),
• the method comprising the following steps:
• generation (E10) of a power supply signal (U, i) between the electric terminals (b1, b2);
• determination (E140) of a first time-sequence of a response signal (I, u), called first calibration sequence (SeqCal);
• assignment (E160) of a meaning of representation of a first predetermined calibration information element (bCal) to the first calibration sequence (SeqCal);
• reception (E12) of a series of time-sequences of the response signal (I, u), representative of a series of information elements, each information element of this series, equal to the calibration information element (bCal), being represented by a time-sequence which is an image of the first calibration sequence (SeqCal).

A home automation actuator (ACT) comprising

• an electric motor driving a moving element in a building;
• two electric terminals (a1, a2) making it possible to power the actuator (ACT) by a power supply and communication entity (IMS) and allowing the communication between the actuator (ACT) and the power supply and communication entity (IMS);
• means (20, 21, 22, 23)
• for analyzing the power supply signal (U, i) supplied by the power supply and communication entity (IMS);
• for generating a first time-sequence of a response signal (I, u), representative of a predetermined calibration information element (bCal), called first calibration sequence (SeqCal);
• for sending a series of time-sequences of the response signal (I, u), representative of a series of information elements, each information element of this series, equal to the calibration information element (bCal), being represented by a time-sequence which is an image of the first calibration sequence (SeqCal).

A power supply and communication entity (IMS) comprising

• two electric terminals (b1, b2) making it possible to power a home automation actuator (ACT) comprising an electric motor driving a moving element in a building and to communicate with this actuator (ACT);
• means (10, 11, 12,13)
• for generating a power supply signal (U, i) between the electric terminals (b1, b2);
• for determining a first time-sequence of a response signal (I, u), called first calibration sequence (SeqCal);
• for assigning a meaning of representation of a first predetermined calibration information element (bCal) to the first calibration sequence (SeqCal);
• for receiving a series of time-sequences of the response signal (I, u), representative of a series of information elements, each information element of this series, equal to the calibration information element (bCal), being represented by a time-sequence which is an image of the first calibration sequence (SeqCal).