Autonomous dispensing device

A floating and energy-autonomous device (1) configured to dispense a solid compound (2) into a volume (3v) of liquid, the solid compound (2) being at least partially soluble in the liquid (3) of the volume (3v) of liquid, the device (1) being able to be immersed in the volume (3v) of liquid and to float freely at a surface (3s) separating the volume (3v) of liquid from a gaseous environment (4), the device (1) comprising an immersed part (5) and an emergent part (6) which are separated by a plane containing the surface (3s) when the device (1) is floating freely at the surface (3s) in a calm state, and a vertical axis (7) inseparable from the device (1) and aligned with the direction of the force of gravity when the device (1) is floating freely at the surface (3s) in the calm state, the device (1) further comprising:

• a circulation circuit (8) for the circulation of the liquid (3), comprising:
• a reservoir (9) able to contain a reserve (2r) of solid compound and comprising an intake orifice (9i) and a discharge orifice (90), the reservoir being configured so that a circulating flow of the liquid (3) coming from the volume (3v) of liquid and entering the reservoir (9) via the intake orifice (9i) washes over at least part of the reserve (2r) of solid compound and dissolves and carries a flow of dissolved solid compound originating from the reserve (2r) of solid compound away from the reservoir and toward the volume (3v) of liquid via the discharge orifice (90), a power supply module (14) configured to supply power at least to the pump (13), and a control module (16), wherein the circulation circuit (8) further comprises a pump (13) configured to generate the circulating flow of the liquid (3), wherein the control module (16) comprises a sensor (17) configured to measure a measured value of a parameter of the volume (3v) of liquid and/or a measured value of a parameter of the gaseous environment (4), and to generate a sensor signal indicative of the measured value of the parameter of the volume (3v) of liquid and/or the measured value of the parameter of the gaseous environment (4), and/or a radio antenna (18) configured to receive a radio signal, the radio signal preferably being indicative of at least one item of information received from among the following:
• a received value of a parameter of the volume (3v) of liquid, a received value of a parameter of the gaseous environment (4), a weather forecast received at the location of the device (1), a weather history received at the location of the device (1), a received schedule for activating the pump (13), which is preferably a daily schedule, a received target for the circulating flow rate of the liquid (3), a received target for the flow rate of dissolved solid compound, a received command regarding the power level of the pump (13), a received command for switching the pump (13) ON/OFF, and for generating at least one antenna signal on the basis of the radio signal, a microcontroller (19) configured to receive the sensor signal and/or the antenna signal, and to command the pump (13) and regulate or adapt the circulating flow rate of the liquid as a function of the sensor signal and/or of the antenna signal.