FR3132442A1 - Autonomous dispensing device - Google Patents

Abstract

Autonomous dispensing device The invention relates to a floating and energy-autonomous device (1) configured to dispense a solid compound (2) into a volume of liquid (3v). The device (1) comprises a reservoir (9) of solid compound (2), and a pump (13) configured to generate a flow rate of circulation of the liquid (3) from the volume of liquid (3v) and crossing the reservoir (9 ) before returning to the liquid volume (3v). The device (1) comprises a sensor (17) configured to generate a sensor signal representing a parameter of the liquid volume (3v) or of a gaseous environment (4) of the device (1), and/or an antenna (18 ) configured to receive a radio signal and to generate an antenna signal. The device (1) comprises a microcontroller (19) configured to control the pump (13) and regulate the circulation rate of the liquid (3) based on the sensor signal and/or the antenna signal. Fig.3

Description

Autonomous dispensing device

[] The invention relates to a floating and energy-independent device which is configured to dispense a solid compound in a volume of liquid, for example chlorine tablets in bathing water in a swimming pool. The device comprises a liquid circulation circuit comprising a reservoir capable of containing a reserve of solid compound, the liquid circulation circuit being configured to dissolve the reserve of solid compound and inject a flow of solid compound dissolved into the volume of liquid.

State of the art

[] Document FR3091700A1 discloses a device for distributing liquid chlorine in swimming pool water, comprising a tank containing chlorine, a chlorine distribution pump, an electronic card which manages the flow of the distribution pump via an appropriate program, the program being initially configured according to all universally predefined degrees of pollution and use, corresponding to the different uses encountered in swimming pool water. The distribution device disclosed by document FR3091700A1 is not suitable for the distribution of a solid compound, and does not make it possible to adapt chlorine distribution without human intervention.

[] Document EP0555600A1 discloses a device capable of carrying out, in a flexible and suitable manner, the chlorinated treatment of swimming pool water. The process uses the dissolution of a chlorinated agent by controlled water circulation: controlling the water circulation controls the speed of dissolution and thereby adapts the chlorine level to needs. The device consists of a container containing the chlorinated agent and having two orifices such that water can flow from one to the other. The opening surface of each of the two orifices can be controlled manually by operating a shutter on a grid. The device is intended to be placed in a circulation area of the water to be treated, for example in the skimmer of a swimming pool. In this application, the opening control is capable of varying the dissolution speed in large proportions corresponding to the two extreme settings of shock chlorination and maintenance chlorination. The device disclosed by document EP0555600A1 does not make it possible to vary the speed of dissolution of the chlorinated agent without human intervention, nor in the absence of a pre-existing circulation zone for the swimming pool water to be treated.

[] Document FR2714044A1 discloses a metered chlorine distribution device in a basin, designed to contain a reserve of chlorine pebbles to dissolve gradually and adapted to bathe partially in the water circulating in a surface skimmer called a "skimmer". The device is constituted by a tubular tank adapted to be able to slide vertically in the bore of a support base, this tank being adapted to internally receive a stack of chlorine pebbles which can slide without hindrance towards its closed lower end, which is provided several water passage holes made in its bottom, as well as in its side wall, near this bottom. This lower end is adapted to be immersed in water at an adjustable depth. The device disclosed in this document does not make it possible to vary the speed of dissolution of the chlorinated agent without human intervention, nor in the absence of a pre-existing circulation zone for the swimming pool water to be treated.

[] There is a need for a device configured to dispense and adapt the delivery of a solid compound in a volume of liquid while minimizing human intervention, and such that its implementation does not require a pre-existing liquid circulation circuit .

[] An object of the invention is to provide a floating and energy-independent device configured to dispense a solid compound into a volume of liquid efficiently without requiring a pre-existing liquid circulation circuit. The floating device is configured to regulate a flow rate of solid compound dissolved in the liquid volume based on sensor signals and/or signals received via wireless communication to achieve a preferred state of the liquid volume by dispensing a correct amount of solid compound in the volume of liquid, while minimizing human intervention.

• un circuit de circulation du liquide comprenant :
  1. un réservoir apte à contenir une réserve du composé solide et comprenant un orifice d’admission et un orifice d’évacuation, le réservoir étant configuré pour qu’un débit de circulation du liquide issu du volume de liquide et entrant dans le réservoir par l’orifice d’admission lessive au moins une partie de la réserve du composé solide et dissolve et emporte un débit de composé solide dissous issu de la réserve du composé solide hors du réservoir vers le volume de liquide par l’orifice d’évacuation,
  2. une pompe configurée pour générer le débit de circulation du liquide,
• un module d’alimentation en énergie configuré pour alimenter en énergie au moins la pompe et un module de contrôle,
• le module de contrôle comprenant :
  1. un capteur configuré pour mesurer une valeur mesurée d’un paramètre du volume de liquide et/ou une valeur mesurée d’un paramètre de l’environnement gazeux, et pour générer un signal de capteur représentant la valeur mesurée du paramètre du volume de liquide et/ou la valeur mesurée du paramètre de l’environnement gazeux, et/ou
  2. une antenne radio configurée pour recevoir un signal radio, le signal radio représentant de préférence au moins une information reçue parmi les suivantes : une valeur reçue d’un paramètre du volume de liquide, une valeur reçue d’un paramètre de l’environnement gazeux, une prévision météorologique reçue à l’endroit du dispositif, un historique météorologique reçu à l’endroit du dispositif, un programme reçu d’activation de la pompe qui est préférablement journalier, un objectif reçu de débit de circulation du liquide, un objectif reçu du débit de composé solide dissous, une commande reçue de niveau de puissance de la pompe, une commande reçue de mise en état MARCHE/ARRÊT de la pompe, et pour générer au moins un signal d’antenne sur base du signal radio,
  3. un microcontrôleur configuré pour recevoir le signal de capteur et/ou le signal d’antenne, et pour commander la pompe et réguler ou adapter le débit de circulation du liquide en fonction du signal de capteur et/ou du signal d’antenne.

[] According to a first aspect, the invention provides a floating and energy-independent device configured to dispense a solid compound into a volume of liquid, the solid compound being at least partially soluble in the liquid of the volume of liquid. The device is able to be immersed in the volume of liquid and to float freely on a surface separating the volume of liquid from a gaseous environment. The device comprises a submerged part and an emerged part separated by a plane comprising the surface when the device floats freely on the surface in a calm state, and a vertical axis secured to the device and aligned with a direction of gravity force when the device floats freely on the surface in the calm state. The device further includes:

• a liquid circulation circuit comprising:
  1. a reservoir capable of containing a reserve of the solid compound and comprising an inlet orifice and an evacuation orifice, the reservoir being configured so that a flow rate of circulation of the liquid coming from the volume of liquid and entering the reservoir via the inlet orifice washes at least part of the reserve of the solid compound and dissolves it and carries a flow of dissolved solid compound coming from the reserve of the solid compound out of the tank towards the volume of liquid through the evacuation orifice,
  2. a pump configured to generate the circulation flow of the liquid,
• an energy supply module configured to supply energy to at least the pump and a control module,
• the control module comprising:
  1. a sensor configured to measure a measured value of a liquid volume parameter and/or a measured value of a gas environment parameter, and to generate a sensor signal representing the measured value of the liquid volume parameter and /or the measured value of the gaseous environment parameter, and/or
  2. a radio antenna configured to receive a radio signal, the radio signal preferably representing at least one piece of information received from among the following: a received value of a liquid volume parameter, a received value of a gaseous environment parameter, a weather forecast received at the location of the device, a weather history received at the location of the device, a program received for activating the pump which is preferably daily, an objective received for the flow rate of circulation of the liquid, an objective received from the flow rate of dissolved solid compound, a received command for the power level of the pump, a received command to put the pump ON/OFF, and to generate at least one antenna signal based on the radio signal,
  3. a microcontroller configured to receive the sensor signal and/or the antenna signal, and to control the pump and regulate or adapt the circulation rate of the liquid according to the sensor signal and/or the antenna signal.

[] In an advantageous embodiment of the invention, the device is configured to deliver the solid compound further comprising chlorine and/or bromine, into bathing water contained in a swimming pool, the solid compound preferably being presented under form of tablets or pellets or pebbles or granules.

[] In an advantageous embodiment of the invention, the control module further comprises an inclination measurement accelerometer configured to measure an inclination angle between the direction of gravity force and the vertical axis of the device and to generate a tilt measurement signal representing the tilt angle, and wherein the microcontroller is configured to stop the pump when an absolute value of the tilt angle is greater than a threshold value.

[] In an advantageous embodiment of the invention, the control module comprises an agitation measurement accelerometer configured to measure an acceleration experienced by the device and to generate an agitation measurement signal representing the acceleration experienced by the device, the agitation measurement accelerometer preferably being the inclination measurement accelerometer, and the microcontroller is configured to receive the agitation measurement signal and to derive a level of agitation of the liquid therefrom, the microcontroller being configured to adjust the flow rate of circulation of the liquid based on the level of agitation of the liquid.

• un mode horloge, dans lequel le microcontrôleur est configuré pour activer brièvement la deuxième pompe à des intervalles de temps préférablement compris entre 1 et 60 min, ou selon,
• un mode entraînement, dans lequel le microcontrôleur est configuré pour activer brièvement la deuxième pompe selon une série de séquences d’activation, une dernière séquence d’activation de la série de séquences d’activation étant de préférence différente des autres séquences d’activation de la série de séquences d’activation.

[] In an advantageous embodiment of the invention, the device further comprises a second liquid circulation circuit comprising a second pump controlled by the microcontroller and supplied with energy by the energy supply module, the second circuit of circulation comprising the second pump being configured to circulate the liquid from the volume of liquid towards the gaseous environment and to generate a jet of liquid passing through a part of the gaseous environment, the microcontroller being preferably configured to control the second pump according to less :

• a clock mode, in which the microcontroller is configured to briefly activate the second pump at time intervals preferably between 1 and 60 min, or according to,
• a drive mode, in which the microcontroller is configured to briefly activate the second pump according to a series of activation sequences, a last activation sequence of the series of activation sequences being preferably different from the other activation sequences of the series of activation sequences.

[] In an advantageous embodiment of the invention, the inlet orifice of the tank is closed by a pierced surface comprising at least one opening capable of squirting the liquid entering the tank onto at least part of the reserve of the solid compound.

[] In an advantageous embodiment of the invention, the circulation circuit is capable of imposing the circulation rate of the liquid of between 0 and 1 dm³/s, preferably between 0 and 0.1 dm³/s.

• au moins une cellule photovoltaïque attachée à une surface externe de la partie émergée, et/ou
• une batterie.

[] In an advantageous embodiment of the invention, the energy supply module further comprises:

• at least one photovoltaic cell attached to an external surface of the emerged part, and/or
• a battery.

• recevoir et préférablement enregistrer dans la mémoire au moins une information du microcontrôleur parmi : la valeur mesurée du paramètre du volume de liquide, la valeur mesurée du paramètre de l’environnement gazeux, une estimation du débit de circulation du liquide, une estimation du débit de composé solide dissous, une estimation de la réserve du composé solide contenue dans le réservoir, un état d’activation de la pompe, un état d’activation de la deuxième pompe, un niveau de puissance de la pompe, un état MARCHE/ARRÊT de la pompe, le niveau d’agitation du liquide, un état de charge de la batterie,
• transmettre un signal de sortie du microcontrôleur représentant l’au moins une information du microcontrôleur à au moins un dispositif auxiliaire au moyen d’une communication sans fil.

[] In an advantageous embodiment of the invention, the control module preferably comprises a memory and is configured to:

• receive and preferably record in the memory at least one piece of information from the microcontroller among: the measured value of the liquid volume parameter, the measured value of the gaseous environment parameter, an estimate of the flow rate of circulation of the liquid, an estimate of the flow rate of dissolved solid compound, an estimate of the reserve of the solid compound contained in the tank, an activation state of the pump, an activation state of the second pump, a power level of the pump, an ON/OFF state of the pump, the level of agitation of the liquid, a state of charge of the battery,
• transmitting an output signal from the microcontroller representing the at least one piece of information from the microcontroller to at least one auxiliary device by means of wireless communication.

[] In an advantageous embodiment of the invention, the control module is configured to control the pump, and to regulate the circulation rate of the liquid, based on at least one input from the control module among the measured value of the liquid volume parameter, the received value of the liquid volume parameter, the measured value of the gas environment parameter, the received value of the gas environment parameter, the liquid agitation level, the weather forecast received at the location of the device, the weather history received at the location of the device.

[] In an advantageous embodiment of the invention, the radio antenna is configured to communicate wirelessly with an auxiliary device floating in the liquid volume, and to receive from the floating auxiliary device the received value of the liquid volume parameter measured by the floating auxiliary device, the parameter of the liquid volume preferably being a temperature of the liquid volume, an oxidation-reduction potential (ORP) of the liquid volume, or a hydrogen potential (pH) of the liquid volume, and the control module is configured to control the pump and to regulate the circulation rate of the liquid based on the received value of the liquid volume parameter.

[] According to a second aspect, the invention provides a kit of elements comprising a device according to the first aspect of the invention, in which the radio antenna is configured to communicate wirelessly with an auxiliary device floating in the volume of liquid , and to receive from the floating auxiliary device the received value of the liquid volume parameter measured by the floating auxiliary device, the liquid volume parameter preferably being a temperature of the liquid volume, an oxidation-reduction potential (ORP) of the volume of liquid, or a hydrogen potential (pH) of the volume of liquid, and in which the control module is configured to control the pump and to regulate the circulation rate of the liquid based on the received value of the volume parameter of liquid. The element kit further includes a floating auxiliary device configured to measure the received value of the liquid volume parameter, wherein the liquid volume parameter is preferably the temperature of the liquid volume, the oxidation-reduction potential (ORP) of the liquid volume, or the hydrogen potential (pH) of the liquid volume, the floating auxiliary device being further configured to communicate wirelessly with the device of the element kit.

[] These and other aspects of the invention will be explained in more detail by means of the embodiment(s) of the invention described below by way of example(s), with reference to the accompanying drawings, on which

[ ] there is a schematic representation of a device according to the invention,

[ ] there is a schematic representation of a device according to the invention and of an auxiliary device floating in a swimming pool,

[ ] there is a sectional view of a device according to the invention floating in a swimming pool,

[ ] there is a cavalier perspective view of a device according to the invention,

[ ] there is a side view of a device according to the invention,
Detailed description of an embodiment of the invention

[] In reference to the , the device 1 according to the invention is configured to dispense or deliver a solid compound 2 in a volume of liquid 3v, the solid compound 2 being at least partially soluble in the liquid 3 included in the volume of liquid 3v.

[] The device 1 according to the invention is configured to float freely on a surface 3s separating the volume of liquid 3v from a gaseous environment 4, that is to say that the device 1 is configured to float on the surface 3s when no force is applied to it except the force of gravity and Archimedes' thrust.

[] The device 1 according to the invention is capable of being immersed in the volume of liquid 3v, that is to say that the device is configured not to break down after having undergone complete immersion in the volume of liquid 3v, preferably at a depth greater than 1 m, preferably at a depth between 2 m and 5 m below the surface 3s.

[] As illustrated in Figures 1 and 3, the device 1 according to the invention comprises a vertical axis 7 secured to the device 1 and aligned with a direction of gravity force when the device 1 floats freely on the surface 3s in a calm state. It is considered that the 3s surface is in the calm state when it is flat and immobile and normal to the direction of gravity force.

[] As illustrated in Figures 1 and 3, the device 1 according to the invention comprises a submerged part 5 and an emerged part 6 defined as being parts of the device 1 separated by a plane comprising the surface 3s when the device 1 floats freely at the surface 3s in a calm state, the submerged part 5 or emerged part 6 being respectively located below or above the plane when the device 1 floats freely on the surface 3s in a calm state.

Solid compound

[] As shown in , the device 1 according to the invention is preferably configured to dispense the solid compound 2 which preferably comprises chlorine and/or bromine, and is preferably presented in at least one form among: tablet, tablet, pebble, granulate. The device 1 according to the invention is configured to resist corrosion due to solid compound 2, preferably corrosion due to chlorine and/or bromine.

[] The device 1 according to the invention is configured to dispense the solid compound 2 in the volume of liquid 3v which is preferably bathing water for humans, preferably contained in a swimming pool which can contain between 1 m³ and 100 m³, preferably between 1 m³ and 30 m³ of the liquid 3. Preferably, the gaseous environment 4 is an atmosphere near the swimming pool.

[] Generally speaking, handling by a user of a compound with a high concentration of agent harmful to human health with a view to delivering it in a volume of liquid is considered less dangerous if the compound is in solid form rather than liquid . For example, in the case of swimming water from a swimming pool, handling the solid compound comprising chlorine in tablet form is deemed safer than handling the same compound in liquid form, because the risk of splashing and splashing drops of the chlorine-comprising compound onto the hands or eyes of a user is reduced. Likewise, it is more difficult for a child to ingest a significant quantity of a compound containing a certain concentration of chlorine if the compound is in solid form rather than liquid. Compared to the devices of the prior art which are configured to dispense compound in liquid form, the device 1 according to the invention which is configured to dispense a solid compound 2 in the volume of liquid 3v is therefore safer.

Reservoir

[] As illustrated in Figures 1 and 3, the device 1 according to the invention comprises a circulation circuit 8 of the liquid 3. The circulation circuit 8 comprises a reservoir 9 configured to contain a reserve of the solid compound 2r, a maximum mass of the reserve of solid compound 2r being preferably between 200 g and 1000 g. The reservoir 9 comprises an inlet orifice 9i and an evacuation orifice 9o, as illustrated in Figures 1 and 5. The circulation circuit 8 is configured so that a circulation flow rate of the liquid 3 coming from, i.e. i.e. extracted, the volume of liquid 3v enters the tank 9 through the inlet port 9i and passes through the tank 9 before returning to the volume of liquid 3v through the evacuation port 9o. The tank 9 is configured so that the circulation flow of the liquid 3 entering the tank 9 through the inlet orifice 9i washes, that is to say washes, at least part of the reserve of the solid compound 2r and dissolves and carries a flow of dissolved solid compound from the reserve of solid compound 2r out of the reservoir 9 towards the volume of liquid 3v through the evacuation port 9o.

[] As illustrated in Figures 1 and 3, the inlet orifice 9i of the reservoir 9 in the device 1 according to the invention is preferably closed by a pierced surface 23 comprising at least one opening 24, preferably several openings 24, and preferably capable of squirting the liquid 3 entering the reservoir 9 onto at least part of the reserve of the solid compound 2r, so as to increase a speed of dissolution of the solid compound 2 corresponding to a circulation rate of the given liquid, it that is to say, to increase the flow rate of dissolved solid compound corresponding to a given liquid circulation flow rate.

Pump

[] The circulation circuit 8 of the device 1 according to the invention further comprises a pump 13 configured to impose the circulation flow rate of the liquid 3. Preferably, the circulation circuit 8 is configured to generate the circulation flow rate of the liquid 3 between 0 and 1 dm³/s, preferably between 0 and 0.1 dm³/s. Preferably, the circulation circuit 8 is configured to dispense the solid compound 2 in the volume of liquid 3v, in which the liquid 3 is characterized by a dynamic viscosity at atmospheric pressure less than 0.1 Pa.s, preferably less than 0.01 Pa. s, preferably less than 0.002 Pa.s.

[] In the device 1 according to the invention, the reservoir 9 is configured so that leaching or washing of at least part of the reserve of the solid compound 2r increases with the circulation rate of the liquid 3. By increasing a power or an activation level of the pump 13, it is therefore possible to increase the flow rate of dissolved solid compound delivered by the device 1 in the volume of liquid 3v. Unlike the devices of the prior art, the device 1 according to the invention comprises the circulation circuit 8 comprising the pump 13 configured to generate the circulation flow rate of liquid 3, to dissolve the solid compound 2, and to deliver the solid compound 2 within the volume of liquid 3. The device 1 according to the invention therefore does not need to be installed in a pre-existing water circulation zone in the volume of liquid 3v to deliver, that is to say dispense, the solid compound 2 in water efficiently, that is to say via a transfer phenomenon by convection rather than by diffusion. For example, the device 1 according to the invention configured to deliver the solid compound 2 comprising chlorine and/or bromine in the bathing water of a swimming pool is capable of delivering the solid compound 2 comprising chlorine and/or bromine. bromine in the bathing water of a swimming pool which does not include a swimming pool pump, which is the case of many small swimming pools, for example containing less than 2 m³ of water. In addition, the device 1 according to the invention allows adjustment of the flow rate of dissolved solid compound via the circulation flow rate of liquid 3 generated by the pump 13, which allows optimization of consumption of the solid compound 2 by the device 1 , and an optimization of the energy consumed by the device 1 to deliver the solid compound 2 in the volume of liquid 3v.

[] As shown in , the reservoir 9 of the device 1 according to the invention can be in fluid communication with the volume of liquid 3v through a supply circuit 11 of the reservoir 9 of the device 1, the supply circuit 11 connecting the orifice d inlet 9i to an inlet orifice of the supply circuit 11i which is preferably included in an external surface of the immersed part 5s, the supply circuit 11 preferably comprising the pump 13.

[] As shown in , the reservoir 9 of the device 1 according to the invention can be in fluid communication with the volume of liquid 3v through an evacuation circuit 12 connecting the evacuation orifice 9o to an outlet orifice of the evacuation circuit 12o which is preferably included in the external surface of the immersed part 5s.

[] In a preferred embodiment of the device 1 according to the invention shown in , the outlet orifice of the evacuation circuit 12o and the evacuation orifice 9o of the tank 9 are combined, the evacuation circuit 12 being preferably formed by an opening or slot passing through a wall separating the tank 9 from the surface external of the immersed part 5s.

Power supply module

[] The device 1 according to the invention comprises an energy supply module 14 configured to supply energy to at least the pump 13 and a control module 16 of the device 1. In a preferred embodiment of the invention such as represented at the , the energy supply module 14 comprises at least one photovoltaic cell 15 attached to an external surface of the emerged part 6s of the device, and/or a battery 25.

[] The device 1 according to the invention is configured to be energy independent, that is to say that the device 1 does not require a permanent energy supply by cable to operate. Preferably, the device comprises the battery 25, and the at least one photovoltaic cell 15, as illustrated in Figures 3 and 4. The battery is preferably rechargeable by the photovoltaic cell, preferably through a V/V voltage converter configured to convert a voltage of the at least one photovoltaic cell 15 into a voltage of the battery 25, as illustrated in . Preferably, the at least one photovoltaic cell 15 attached to the external surface of the emerged part 6s of the device is oriented so that a normal to a surface of the at least one photovoltaic cell 15 is parallel to the vertical axis 7, so that solar radiation captured by the at least one photovoltaic cell 15 is maximized.

[] In reference to the , the microcontroller 19 can be supplied with energy by the battery 25 through a second V/V voltage converter which is preferably a low voltage drop converter.

Sensor

[] The device 1 according to the invention comprises a control module 16 comprising a sensor 17 and/or a radio antenna 18, and a microcontroller 19.

[] The sensor 17 of the device 1 according to the invention is configured to measure at least one measured value of a parameter of the liquid volume 3v and/or to measure at least one measured value of a parameter of the gaseous environment 4 The parameter of the volume of liquid 3v is for example a temperature of the volume of liquid 3v, an oxidation-reduction potential (ORP) of the volume of liquid 3v, a hydrogen potential (pH) of the volume of liquid 3v, and the parameter of the gaseous environment 4 is for example a temperature of the gaseous environment 4.

• un capteur de température configuré pour mesurer une valeur mesurée de température du volume de liquide 3v,
• un capteur de température configuré pour mesurer une valeur mesurée de température de l’environnement gazeux 4,
• un capteur ORP configuré pour mesurer une valeur mesurée du potentiel d’oxydo-réduction (ORP) du volume de liquide 3,
• un capteur de potentiel hydrogène (pH) configuré pour mesurer une valeur mesurée de pH du volume de liquide 3v.

[] Preferably, the device 1 according to the invention comprises at least one sensor 17 from:

• a temperature sensor configured to measure a measured temperature value of the volume of liquid 3v,
• a temperature sensor configured to measure a measured temperature value of the gaseous environment 4,
• an ORP sensor configured to measure a measured value of the oxidation-reduction potential (ORP) of the volume of liquid 3,
• a hydrogen potential (pH) sensor configured to measure a measured pH value of the liquid volume 3v.

[] In the device 1 according to the invention comprising the sensor 17, the sensor 17 is further configured to generate a sensor signal representing the measured value of the parameter of the liquid volume 3v and/or the measured value of the parameter of the gaseous environment 4.

[] Preferably, the device 1 according to the invention comprises several sensors 17 configured to measure several measured values of the liquid volume parameter 3v and/or several measured values of the gaseous environment parameter 4.

Radio antenna

[] As illustrated in Figures 2 and 4, the radio antenna 18 of the device 1 according to the invention is configured to receive a radio signal from an auxiliary device 26 or from a floating auxiliary device 27, preferably via Bluetooth (BLE ), and/or Wifi, and/or a GSM communication network, for example 4G or 5G, and/or Sigfox.

• une valeur reçue du paramètre du volume de liquide 3v, qui est de préférence mesurée et envoyée par le dispositif auxiliaire flottant 27, le paramètre du volume de liquide 3v étant de préférence un parmi : la température du volume de liquide 3v, le potentiel d’oxydo-réduction (ORP) du volume de liquide 3v, le potentiel hydrogène (pH) du volume de liquide 3v,
• une valeur reçue du paramètre de l’environnement gazeux 4, qui est de préférence mesurée et envoyée par le dispositif auxiliaire flottant 27, le paramètre de l’environnement gazeux 4 étant de préférence la température de l’environnement gazeux 4,
• une prévision météorologique reçue à l’endroit du dispositif 1, qui est de préférence envoyée par le dispositif auxiliaire 26, et qui comprend par exemple des prévisions de température de l’environnement gazeux 4, des prévisions de précipitations dans l’environnement gazeux 4, des prévisions des vitesses du vent dans l’environnement gazeux 4, des prévisions des directions du vent dans l’environnement gazeux 4,
• un historique météorologique reçu à l’endroit du dispositif 1, qui comprend par exemple un historique de température de l’environnement gazeux 4, un historique des précipitations dans l’environnement gazeux 4, un historique des vitesses du vent dans l’environnement gazeux 4, un historique des directions du vent dans l’environnement gazeux 4,
• un programme reçu d’activation de la pompe 13 qui est préférablement journalier, qui est préférablement envoyé par le dispositif auxiliaire 26, et qui comprend de préférence un algorithme reçu de régulation de la pompe 13 en fonction d’au moins un parmi :
  • un horaire journalier,
  • la valeur mesurée du paramètre du volume de liquide 3v,
  • la valeur mesurée du paramètre de l’environnement gazeux 4,
  • une parmi l’au moins une information reçue par l’antenne radio 18,
• un objectif reçu du débit de circulation du liquide 3,
• un objectif reçu du débit de composé solide dissous,
• une commande reçue de niveau de puissance de la pompe 13,
• une commande reçue de mise en état MARCHE/ARRÊT de la pompe 13.

[] The radio signal preferably represents at least one piece of information received from among the following:

• a received value of the liquid volume parameter 3v, which is preferably measured and sent by the floating auxiliary device 27, the liquid volume parameter 3v preferably being one of: the temperature of the liquid volume 3v, the potential of oxidation-reduction (ORP) of the volume of liquid 3v, the hydrogen potential (pH) of the volume of liquid 3v,
• a received value of the parameter of the gaseous environment 4, which is preferably measured and sent by the floating auxiliary device 27, the parameter of the gaseous environment 4 preferably being the temperature of the gaseous environment 4,
• a weather forecast received at the location of the device 1, which is preferably sent by the auxiliary device 26, and which includes for example temperature forecasts of the gaseous environment 4, precipitation forecasts in the gaseous environment 4, forecasts of wind speeds in gaseous environment 4, forecasts of wind directions in gaseous environment 4,
• a meteorological history received at the location of the device 1, which includes for example a temperature history of the gaseous environment 4, a history of precipitation in the gaseous environment 4, a history of wind speeds in the gaseous environment 4 , a history of wind directions in the gaseous environment 4,
• a received program for activating the pump 13 which is preferably daily, which is preferably sent by the auxiliary device 26, and which preferably comprises a received algorithm for regulating the pump 13 as a function of at least one of:
  • a daily schedule,
  • the measured value of the liquid volume parameter 3v,
  • the measured value of the gas environment parameter 4,
  • one among the at least one piece of information received by the radio antenna 18,
• an objective received from the circulation flow rate of the liquid 3,
• an objective received from the flow of dissolved solid compound,
• a command received for the power level of the pump 13,
• a command received to put the pump 13 in ON/OFF state.

[] The radio antenna 18 of the device 1 according to the invention is configured to generate at least one antenna signal based on the radio signal.

Microcontroller

[] The microcontroller 19 of the device 1 according to the invention is configured to receive the sensor signal and/or the antenna signal, and to control the pump 13 and regulate the circulation rate of the liquid as a function of the sensor signal and /or antenna signal. Based on the sensor signal and/or the antenna signal, the microcontroller 19 is therefore configured to control the pump 13 and thereby regulate the circulation rate of the liquid 3 and ultimately the flow rate of dissolved solid compound which is dispensed into the volume of liquid 3v. In a preferred embodiment of the device 1 according to the invention comprising a radio antenna 18, the radio antenna 18 is configured to receive the radio signal emitted by the floating auxiliary device 27 and representing a received value of redox potential (ORP) of the volume of liquid 3 measured by the floating auxiliary device 27, and the microcontroller 19 is configured to control the pump 13 as a function of the received value of redox potential (ORP) of the volume of liquid 3.

[] Preferably, the microcontroller 19 of the device 1 according to the invention is configured to execute an activation program for the pump 13. The activation program for the pump 13 is preferably recorded in a memory included in the control module 16. This program for activating the pump 13 can be installed in the microcontroller 19 during the manufacture of the device 1. Preferably, the radio antenna 18 of the device 1 according to the invention is configured to receive the radio signal from the device auxiliary 26 representing the received activation program of the pump 13, and the microcontroller 19 is configured to replace and/or update the activation program of the pump 13 on the basis of the received activation program of the pump 13.

Accelerometer

[] In a preferred embodiment of the device 1 according to the invention as represented in , the control module 16 further comprises an inclination measurement accelerometer 20a configured to measure an inclination angle between the direction of gravity force and the vertical axis 7 of the device 1, and to generate a measurement signal of inclination representing the angle of inclination. Preferably, the microcontroller 19 is configured to receive the inclination measurement signal, and to stop the pump 13 if an absolute value of the inclination angle is greater than a threshold value, the threshold value being preferably comprised between 20° and 60°, preferably between 30° and 45°. Preferably, the microcontroller 19 is configured to stop the pump 13 if the absolute value of the angle of inclination is greater than the threshold value for at least 30 s, preferably for at least 10 s, preferably for at least 2 sec.

[] Preferably, the device 1 according to the invention is configured to tilt when it is on a flat surface outside the volume of liquid, 2v so that the absolute value of the angle of inclination is greater at the threshold value of 30°, and the microcontroller 19 is configured to stop the pump 13 of the device 1 according to the invention if the absolute value of the angle of inclination is greater than the threshold value equal to 30°. In this way, the device 1 according to the invention avoids, for example, activating the pump 13 when the device 1 is located outside the water on a flat surface, in order to reduce the energy consumption of the device 1.

[] In a preferred embodiment of the device 1 according to the invention, the control module 16 further comprises an agitation measurement accelerometer 20b configured to measure an acceleration experienced by the device 1 and to generate a measurement signal d agitation representing the acceleration experienced by the device 1. Preferably, the agitation measurement accelerometer 20b is also the inclination measurement accelerometer 20a, as shown in Figure . Preferably, the microcontroller 19 is configured to receive the agitation measurement signal, to determine an agitation level of the liquid 3 based on the agitation measurement signal, and to regulate or adjust the circulation rate of the liquid 3 based on the level of agitation of the liquid 3.

[] Preferably, in the device 1 according to the invention configured to dispense chlorine in the bathing water of the swimming pool, the microcontroller 19 is configured to increase the circulation rate of the liquid 3 in the device 1, and therefore the flow rate of dissolved solid compound delivered into the bathing water of the swimming pool, if the level of agitation of the liquid 3 increases, in order to maintain a sufficient degree of cleanliness of the bathing water of the swimming pool.

Second liquid circulation circuit

[] As shown in to 5, the device 1 according to the invention can further comprise a second circulation circuit 21 of the liquid 3 which comprises a second pump 22 controlled by the microcontroller 19 and supplied with energy by the energy supply module 14. The second circulation circuit 21 comprising the second pump 22 is configured to circulate the liquid 3 from the volume of liquid 3v towards the gaseous environment 4 by generating a jet of liquid 3j passing through a part of the gaseous environment 4. Preferably, the device 1 according to the invention is configured to activate the second pump 22 in order to generate a jet of liquid 3j visible to a user located at a distance of between 0 m and 20 m from the device 1. Preferably, the microcontroller 19 is configured to briefly activate the second pump 22, that is to say for a duration of between 1 s and 10 s, so that the jet of liquid 3j is generated briefly for the same duration.

• un mode horloge, dans lequel le microcontrôleur 19 est configuré pour activer brièvement la deuxième pompe 22 à des intervalles de temps préférablement compris entre 1 et 60 min. De préférence, le dispositif 1 selon l’invention est configuré pour recevoir le signal radio émis par le dispositif auxiliaire 26 représentant des intervalles de temps reçus, et pour activer brièvement la deuxième pompe 22 sur base des intervalles de temps reçus.
• un mode entraînement, dans lequel le microcontrôleur 19 est configuré pour activer brièvement la deuxième pompe 22 selon une série de séquences d’activation, une dernière séquence d’activation de la série de séquences d’activation étant de préférence différente des autres séquences d’activation de la série de séquences d’activation.

[] The microcontroller 19 is preferably configured to control the second pump 22 according to at least one of the following activation modes of the second pump:

• a clock mode, in which the microcontroller 19 is configured to briefly activate the second pump 22 at time intervals preferably between 1 and 60 min. Preferably, the device 1 according to the invention is configured to receive the radio signal transmitted by the auxiliary device 26 representing received time intervals, and to briefly activate the second pump 22 on the basis of the received time intervals.
• a training mode, in which the microcontroller 19 is configured to briefly activate the second pump 22 according to a series of activation sequences, a last activation sequence of the series of activation sequences preferably being different from the other activation sequences activation of the series of activation sequences.

[] Preferably, the device 1 according to the invention is configured to receive the radio signal emitted by the auxiliary device 26 representing a mode of activation of the second pump received, and to activate the second pump 22 according to the activation mode of the second pump received. The auxiliary device 26 is preferably a smartphone so that the activation mode of the second pump can be controlled remotely by a user of the smartphone.

Transmission

• la valeur mesurée du paramètre du volume de liquide 3v, qui est mesurée par le capteur 17,
• la valeur mesurée du paramètre de l’environnement gazeux 4, qui est mesurée par le capteur 17,
• une estimation du débit de circulation du liquide 3, qui est préférablement calculée par le microcontrôleur 19,
• une estimation du débit de composé solide 2 dissous, qui est préférablement calculée par le microcontrôleur 19,
• une estimation de la réserve du composé solide 2r contenue dans le réservoir 9, qui est préférablement calculée par le microcontrôleur 19,
• un état d’activation de la pompe 13, qui est préférablement envoyé par la pompe 13 ou par le microcontrôleur 19,
• un état d’activation de la deuxième pompe 22, qui est préférablement envoyé par la deuxième pompe 22 ou par le microcontrôleur 19,
• un niveau de puissance de la pompe 13, qui est préférablement envoyé par la pompe 13 ou par le microcontrôleur 19,
• un état MARCHE/ARRÊT de la pompe 13, qui est préférablement envoyé par la pompe 13 ou par le microcontrôleur 19,
• le niveau d’agitation du liquide 3, qui est préférablement envoyé par le microcontrôleur 19,
• un état de charge de la batterie 25 qui est préférablement envoyé par le microcontrôleur 19.

[] In a preferred embodiment of the device 1 according to the invention, the control module 16 preferably comprises the memory and is configured to receive, and preferably record in the memory, at least one piece of information from the microcontroller among:

• the measured value of the liquid volume parameter 3v, which is measured by the sensor 17,
• the measured value of the gaseous environment parameter 4, which is measured by the sensor 17,
• an estimate of the circulation rate of the liquid 3, which is preferably calculated by the microcontroller 19,
• an estimate of the flow rate of dissolved solid compound 2, which is preferably calculated by the microcontroller 19,
• an estimate of the reserve of the solid compound 2r contained in the reservoir 9, which is preferably calculated by the microcontroller 19,
• an activation state of the pump 13, which is preferably sent by the pump 13 or by the microcontroller 19,
• an activation state of the second pump 22, which is preferably sent by the second pump 22 or by the microcontroller 19,
• a power level of the pump 13, which is preferably sent by the pump 13 or by the microcontroller 19,
• an ON/OFF state of the pump 13, which is preferably sent by the pump 13 or by the microcontroller 19,
• the level of agitation of the liquid 3, which is preferably sent by the microcontroller 19,
• a state of charge of the battery 25 which is preferably sent by the microcontroller 19.

[] Preferably, the device 1 is configured so that the control module 16 receives at least one piece of information from the microcontroller which is sent by the sensor 17, by the pump 13, or by the microcontroller 19.

[] Preferably, the at least one piece of information from the microcontroller is instantaneous or in the form of a history. For example, the agitation level of liquid 3 can be an instantaneous agitation level of liquid 3, or be a history of the agitation level of liquid 3 during the last 24 hours and recorded in the memory.

[] Preferably, the control module 16 is configured to transmit an output signal from the microcontroller 19 representing at least one piece of information from the microcontroller to at least one auxiliary device 26 by means of wireless communication, preferably via the antenna 18 or via a second transmission antenna, so that a user of the auxiliary device 26 can remotely access at least one piece of information from the microcontroller.

Preferred Control Module Inputs

• la valeur mesurée du paramètre du volume de liquide 3v,
• la valeur reçue du paramètre du volume de liquide 3v, qui est par exemple reçue du dispositif auxiliaire flottant 27,
• la valeur mesurée du paramètre de l’environnement gazeux 4,
• la valeur reçue du paramètre de l’environnement gazeux 4, qui est par exemple reçue du dispositif auxiliaire flottant 27,
• le niveau d’agitation du liquide 3,
• la prévision météorologique reçue à l’endroit du dispositif 1, qui est par exemple reçue du dispositif auxiliaire 26,
• l’historique météorologique reçu à l’endroit du dispositif 1, qui est par exemple reçu du dispositif auxiliaire 26.

[] In a preferred embodiment of the device 1 according to the invention, the control module 16 is configured to control the pump 13, and to regulate the circulation rate of the liquid, on the basis of at least one input of the control module. control 16 among:

• the measured value of the liquid volume parameter 3v,
• the received value of the liquid volume parameter 3v, which is for example received from the floating auxiliary device 27,
• the measured value of the gas environment parameter 4,
• the received value of the gas environment parameter 4, which is for example received from the floating auxiliary device 27,
• the level of agitation of the liquid 3,
• the weather forecast received at the location of the device 1, which is for example received from the auxiliary device 26,
• the meteorological history received at the location of the device 1, which is for example received from the auxiliary device 26.

Auxiliary devices

[] Preferably, the auxiliary device 26 is an internet access point, for example a WiFi terminal or a mobile telephone network relay antenna, or a mobile device with wireless communication, for example a tablet or a mobile telephone. Preferably, the auxiliary device 26 comprises a tactile user interface and is configured to execute an application allowing the user of the auxiliary device 26 to remotely control the device 1 according to the invention and/or to remotely receive information from the device 1.

[] Preferably, the floating auxiliary device 27 is energy independent, comprises a sensor of the floating auxiliary device, and is configured to measure the received value of the liquid volume parameter 3v and/or the received value of the environment parameter gaseous 4. Preferably, the parameter of the volume of liquid 3v is the temperature of the volume of liquid 3v, or the oxidation-reduction potential (ORP) of the volume of liquid 3v, or the hydrogen potential (pH) of the volume of liquid 3v. Preferably, the floating auxiliary device 27 is configured to measure several values received of the liquid volume parameter 3v and/or several values received of the gaseous environment parameter 4. For example, the floating auxiliary device 27 can be an EcO probe developed by iopool.

[] In a preferred embodiment of the device 1 according to the invention, the radio antenna 18 is configured to communicate wirelessly with the floating auxiliary device 27 in the liquid volume 3v, and to receive from the floating auxiliary device 27 the or the received values of the liquid volume parameter 3v measured by the floating auxiliary device 27, the liquid volume parameter 3v preferably being the temperature of the liquid volume 3v, the oxidation-reduction potential (ORP) of the liquid volume 3v, or the hydrogen potential (pH) of the volume of liquid 3v, and the control module 16 is configured to control the pump 13 and to regulate the circulation rate of the liquid 3 on the basis of the received value(s) of the volume parameter of liquid 3v.

Elements kit

[] The invention also comprises a kit of elements comprising the floating auxiliary device 27 and the device 1 according to the invention.

[] The floating auxiliary device 27 of the element kit according to the invention is configured to measure the received value of the liquid volume parameter 3, in which the liquid volume parameter 3v is preferably the temperature of the liquid volume 3v , or the oxidation-reduction potential (ORP) of the liquid volume 3v, or the hydrogen potential (pH) of the liquid volume 3v. The floating auxiliary device 27 of the kit of elements according to the invention is further configured to communicate wirelessly with the device 1 of the kit of elements according to the invention.

[] The device 1 of the kit of elements according to the invention comprises the radio antenna 18 which is configured to communicate wirelessly with the floating auxiliary device 27, and to receive from the floating auxiliary device 27 the received value of the volume parameter of liquid 3v measured by the floating auxiliary device 27. The device 1 of the kit of elements according to the invention further comprises the control module 16 which is configured to control the pump 13 and to regulate the circulation rate of the liquid 3 on the basis of of the received value of the liquid volume parameter 3v measured by the floating auxiliary device 27.

[] The kit of elements is configured to, autonomously in energy, and without human intervention except for recharging the tank 9 with solid compound 2, measure the value received of the liquid volume parameter 3 and adapt the flow of compound dissolved solid delivered in the liquid volume 3v depending on the received value of the liquid volume parameter 3. For example, the measurement of the received value of the liquid parameter 3 can be carried out by the floating auxiliary device 27 located at a location different in the swimming pool from the device 1 according to the invention which is configured to deliver chlorine into the swimming pool. Compared to the use of the device 1 according to the invention alone and configured to itself measure the value of the liquid volume parameter provided by the floating auxiliary device 27 in the kit of elements according to the invention, the use of the kit of elements according to the invention makes it possible to prevent the solid compound 2 delivered by the device 1 in the volume of liquid 3v in a vicinity of the device 1 from impacting the measurement of the value of the parameter of the volume of liquid by the device 1. The regulation of the flow rate of dissolved solid compound delivered in an entire volume of liquid 3v by the device 1 included in the kit of elements according to the invention will therefore be improved compared to the case where the device 1 according to the invention is used alone.

Claims (11)

Floating, energy-independent device (1) configured to dispense a solid compound (2) into a volume of liquid (3v), the solid compound (2) being at least partially soluble in the liquid (3) of the volume of liquid (3v) ), the device (1) being able to be immersed in the volume of liquid (3v) and to float freely on a surface (3s) separating the volume of liquid (3v) from a gaseous environment (4), the device ( 1) comprising a submerged part (5) and an emerged part (6) separated by a plane comprising the surface (3s) when the device (1) floats freely on the surface (3s) in a calm state, and a vertical axis ( 7) integral with the device (1) and aligned with a direction of gravitational force when the device (1) floats freely on the surface (3s) in the calm state, the device (1) further comprising:

• a circulation circuit (8) of the liquid (3) comprising:
  1. a reservoir (9) capable of containing a reserve of the solid compound (2r) and comprising an inlet orifice (9i) and an evacuation orifice (9o), the reservoir being configured so that a flow rate of circulation of the liquid ( 3) coming from the volume of liquid (3v) and entering the reservoir (9) through the inlet orifice (9i) leaches at least part of the reserve of the solid compound (2r) and dissolves and carries a flow of compound dissolved solid from the reserve of the solid compound (2r) out of the tank towards the volume of liquid (3v) through the evacuation port (9o),
  2. a pump (13) configured to generate the circulation flow rate of the liquid (3),
• an energy supply module (14) configured to supply energy to at least the pump (13), and
• a control module (16) comprising:
  1. a sensor (17) configured to measure a measured value of a parameter of the liquid volume (3v) and/or a measured value of a parameter of the gas environment (4), and to generate a sensor signal representing the measured value of the liquid volume parameter (3v) and/or the measured value of the gas environment parameter (4), and/or
  2. a radio antenna (18) configured to receive a radio signal, the radio signal preferably representing at least one piece of information received from among the following: a received value of a parameter of the volume of liquid (3v), 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 program received for activating the pump (13) which is preferably daily, a received objective for the circulation flow rate of the liquid (3), a received objective for the flow rate of the dissolved solid compound, a received command for the power level of the pump (13), a received command for ON/OFF status. STOP the pump (13), and to generate at least one antenna signal based on the radio signal,
  3. a microcontroller (19) configured to receive the sensor signal and/or the antenna signal, and to control the pump (13) and regulate or adapt the circulation rate of the liquid as a function of the sensor signal and/or the signal antenna.

Device (1) according to claim 1, wherein the control module (16) further comprises a tilt measuring accelerometer (20a) configured to measure a tilt angle between the direction of gravity force and the vertical axis (7) of the device (1) and to generate a tilt measurement signal representing the tilt angle, and in which the microcontroller (19) is configured to stop the pump (13) when an absolute value of the inclination angle is greater than a threshold value. Device (1) according to any one of the preceding claims, in which:

• the control module (16) comprises an agitation measurement accelerometer (20b) configured to measure an acceleration experienced by the device (1) and to generate an agitation measurement signal representing the acceleration experienced by the device (1 ), the agitation measurement accelerometer (20b) preferably being the inclination measurement accelerometer (20a),
• the microcontroller (19) is configured to receive the agitation measurement signal and to derive therefrom an agitation level of the liquid (3), the microcontroller (19) being configured to adjust the circulation rate of the liquid (3) on basis of the level of agitation of the liquid (3).

Device (1) according to any one of the preceding claims and further comprising a second circulation circuit (21) of the liquid (3) comprising a second pump (22) controlled by the microcontroller (19) and supplied with energy by the module energy supply (14), the second circulation circuit (21) comprising the second pump (22) being configured to circulate the liquid (3) from the liquid volume (3v) towards the gaseous environment (4) and to generate a jet of liquid (3j) passing through a part of the gaseous environment (4), the microcontroller (19) being preferably configured to control the second pump (22) according to at least:

• a clock mode, in which the microcontroller (19) is configured to briefly activate the second pump (22) at time intervals preferably between 1 and 60 min, or according to
• a drive mode, in which the microcontroller (19) is configured to briefly activate the second pump (22) according to a series of activation sequences, a last activation sequence of the series of activation sequences preferably being different from the other activation sequences in the series of activation sequences.

Device (1) according to any one of the preceding claims in which the inlet orifice (9i) of the reservoir (9) is closed by a pierced surface (23) comprising at least one opening (24) capable of squirting the liquid (3) entering the tank (9) on at least part of the reserve of the solid compound (2r). Device (1) according to any one of the preceding claims and whose circulation circuit (8) is capable of imposing the circulation flow rate of the liquid (3) of between 0 and 1 dm³/s, preferably between 0 and 0.1 dm³/ s. Device (1) according to any one of the preceding claims and in which the energy supply module (14) further comprises:

• at least one photovoltaic cell (15) attached to an external surface of the emerged part (6s), and/or
• a battery (25).

Device (1) according to any one of the preceding claims and whose control module (16) preferably comprises a memory and is configured to:

• receive and preferably record in the memory at least one piece of information from the microcontroller among: the measured value of the liquid volume parameter (3v), the measured value of the gaseous environment parameter (4), an estimate of the circulation rate of the liquid (3), an estimate of the flow rate of dissolved solid compound, an estimate of the reserve of solid compound (2r) contained in the reservoir (9), an activation state of the pump (13), an activation state of the second pump (22), a power level of the pump (13), an ON/OFF state of the pump (13), the level of agitation of the liquid (3), a state of charge of the battery (30 ),
• transmitting an output signal from the microcontroller (19) representing the at least one piece of information from the microcontroller to at least one auxiliary device (26) by means of wireless communication.

Device (1) according to any one of the preceding claims and in which the control module (16) is configured to control the pump (13), and to regulate the circulation rate of the liquid, on the basis of at least one input of the control module among:

• the measured value of the liquid volume parameter (3v),
• the value received from the liquid volume parameter (3v),
• the measured value of the gas environment parameter (4),
• the received value of the gas environment parameter (4),
• the level of agitation of the liquid (3),
• the weather forecast received at the location of the device (1),
• the meteorological history received at the location of the device (1).

Device (1) according to any one of the preceding claims and in which:

• the radio antenna (18) is configured to wirelessly communicate with a floating auxiliary device (27) in the liquid volume (3v), and to receive from the floating auxiliary device (27) the received value of the liquid volume parameter ( 3v) measured by the floating auxiliary device (27), the parameter of the liquid volume (3v) preferably being a temperature of the liquid volume (3v), an oxidation-reduction potential (ORP) of the liquid volume (3v) ), or a hydrogen potential (pH) of the volume of liquid (3v),
• the control module (16) is configured to control the pump (13) and to regulate the circulation rate of the liquid (3) based on the received value of the liquid volume parameter (3v).

Kit of elements including:

• a device (1) according to claim 10,
• a floating auxiliary device (27) configured to measure the received value of the liquid volume parameter (3), wherein the liquid volume parameter (3) is preferably the temperature of the liquid volume (3v), the potential d oxidation-reduction (ORP) of the volume of liquid (3v), or the hydrogen potential (pH) of the volume of liquid (3v), and to communicate wirelessly with the device (1) according to claim 10.