Low-consumption hub and detector configured to communicate with this hub

A hub including:

• a pairing module configured to pair said hub with at least one detector and to send to said at least one detector, during said pairing, a unique identifier specific to said detector;
• a memory for storing said unique identifier and a computer program;
• a synchronization module for synchronizing a clock of said hub with a clock of said at least one detector;
• a radio communication module controlled by said clock of the hub;
• a computing module configured to determine, for each of said detectors, as a function of said unique identifier specific to said detector, and by executing said computer program, a start time of at least one interval of reception of a collection datum sent by said detector;
• a controlling module configured to activate said radio communication module in said reception intervals to receive collection data transmitted by said at least one detector and to deactivate said radio communication module, at least as a receiver, outside these intervals;
• and
• a communication module configured to transfer said collection data to at least one remote equipment item.

A system comprising:

• at least one detector;
• and
• a hub;
• wherein the at least one detector includes:
• a sensor configured to acquire a feature of the environment of said sensor;
• a first detector module configured to pair said detector with the hub, and to receive from said hub, during said pairing, a unique identifier of said detector;
• a detector memory for storing said unique identifier and a detector computer program;
• a second detector module for synchronizing a clock of said detector with a clock of said hub;
• a detector radio communication module controlled by the clock of the detector;
• a detector computing module configured to determine, as a function of said unique identifier, and by executing said detector computer program, a start time of at least one interval of transmission of a collection datum obtained on the basis of the environment feature acquired by the sensor;
• said detector radio communication module being configured to send said collection datum to said hub during said transmission interval;
• wherein the hub includes:
• a first hub module configured to pair said hub with the at least one detector and to send to said at least one detector, during said pairing, a unique identifier specific to said detector;
• a hub memory for storing said unique identifier and a hub computer program;
• a second hub module for synchronizing the clock of said hub with the clock of said at least one detector;
• a hub radio communication module controlled by said clock of the hub;
• a hub computing module configured to determine, for each of said detectors, as a function of said unique identifier specific to said detector, and by executing said hub computer program, a start time of at least one interval of reception of a collection datum sent by said detector;
• a controlling module configured to activate said hub radio communication module in said reception intervals to receive collection data transmitted by said at least one detector and to deactivate said hub radio communication module, at least as a receiver, outside these intervals;
• and
• a hub communication module configured to transfer said collection data to at least one remote equipment item;
• wherein each transmission interval determined by a said detector is contained in one and only one reception interval determined by said hub.