Urine analysis device for measuring urine temperature

Abstract

A urine analysis device (12) configured to be fully positioned within a toilet (10), the device comprising: a housing (28) surmounted by a heat-conducting plate (30), a free face (40) of the heat-conducting plate (30) being intended to receive a urine stream directly from a user urinating in the toilet (10), and at least one temperature sensor (44), typically received in the housing (28), each temperature sensor (44) being configured to locally measure a temperature of the conductive plate (30). Related methods. Abstract figure: Figure 1

Description

Title of the invention: Urine analysis device for measuring urine temperature Technical field

[0001] The present disclosure relates to the field of urine analysis devices. More specifically, the present disclosure relates to a urine analysis device for determining urine temperature. The present disclosure also relates to a method for measuring urine temperature. Prior art

[0002] Basal Body Temperature (BBT) measurement is a method commonly used by women wishing to determine their fertile period.

[0003] The method is based on the principle that the basal body temperature of a fertile woman follows a biphasic pattern. The first phase corresponds to the follicular phase of the menstrual cycle, in which the basal temperature will be relatively low. The second phase corresponds to the luteal phase, which begins after ovulation, in which an increase in basal temperature can be observed.

[0004] Women using this method are typically expected to measure their oral, vaginal, or rectal temperature every day upon waking. However, this method appears intrusive. It can also be inconvenient for many women to measure their temperature every day.

[0005] Thus, devices for measuring temperature from urine have been proposed. These devices are to be fixed or mounted in the toilets to analyze the urine secreted by a user.

[0006] In some cases, a urine sample may be collected during urination to be channeled to a temperature sensor. However, this type of device can be difficult to install, requiring for example to be integrated into the toilet. In addition, this type of device appears impractical to use, the user having to ensure that a sufficient urine sample is collected during urination.

[0007] In other cases, the urine temperature can be measured remotely, for example using an infrared sensor. If it is no longer necessary to collect a urine sample, the accuracy of the temperature measurement appears insufficient to detect variations in basal temperature.

[0008] The present disclosure aims to provide a urine analysis device for measuring urine temperature which does not have at least some of the drawbacks presented above. Summary

[0009] The invention is defined by the claims attached at the end of the description.

[0010] In particular, a urine analysis device is provided, configured to be entirely positioned inside a toilet, the device comprising: - a housing, - a heat-conducting plate, mounted on the housing, the heat-conducting plate comprising a free face intended to receive a jet of urine directly from a user urinating in the toilet, and - at least one temperature sensor, each temperature sensor being configured to locally measure temperature information from the conductive plate.

[0011] Thus, the device can take an accurate measurement of the temperature of the urine, in particular to detect a period of fertility or a feverish episode. The conductive plate can come into contact with a jet of urine without the user having to worry about the device. Using the diffusion of heat within the conductive plate, the conductive plate can act as a spatial filter making it possible to homogenize the temperature of the urine over the entire surface of the plate. The temperature sensor(s) can record the temperature of the conductive plate regardless of the point of impact of the jet of urine on the conductive plate. The temperature can be recorded even if the point of impact is not stable. Furthermore, the device, positioned in the toilet, can be discreet.The urine measuring device is configured to, from the measurement of the temperature of the urine, generate temperature data which can be transmitted by means of wireless communication.

[0012] The features set forth in the following paragraphs may optionally be implemented. They may be implemented independently of one another or in combination with one another.

[0013] The temperature information may in particular be a temperature value or a change in the temperature value over time, for example during urination, i.e. the temperature of the urine over time. The temperature information may be measured via a physical quantity of the temperature sensor, such as a voltage across its terminals. The temperature measurements may be obtained discretely, quasi-continuously or continuously.

[0014] The temperature sensor(s) may be received or positioned within the housing. In particular, the housing and the heat conducting plate may define a volume within which the temperature sensor(s) are located. To prevent the temperature sensors are not in contact with the urine stream, the volume can be waterproof to the urine stream.

[0015] The conductive plate may have a surface area greater than 3,500 mm2, or even greater than 3,800 mm2. Thus, the surface area available for contact with the urine stream is substantial and comfortable. The probability of the urine stream coming into contact with the conductive plate is increased.

[0016] The conductive plate may be made of a heat-conducting metal. Thus, the conductive plate has good conductivity. An improvement in conductivity may allow a reduction in the number of temperature sensors measuring the temperature of the conductive plate.

[0017] The conductive plate may in particular be made of aluminum, so as to have good resistance to water and the humidity of the toilets. The conductive plate can thus retain good aesthetics. Alternatively, the conductive plate could be a copper alloy or stainless steel.

[0018] Alternatively, the conductive plate may be made of a heat-conducting plastic, which provides both good conductivity and simplifies manufacturing. A heat-conducting plastic may be a polymer loaded with conductive elements such as graphite fibers or ceramics (aluminum nitride).

[0019] The conductive plate may have a thickness of between 0.1 mm and 0.5 mm, for example 0.3 mm or about 0.3 mm. Thus, the conductive plate may have a low heat capacity without compromising its rigidity. Such a conductive plate thickness allows a good compromise between the number of temperature sensors measuring the temperature of the conductive plate and the rigidity of the conductive plate.

[0020] The analysis device may comprise a plurality of temperature sensors. In particular, a majority of the plurality of temperature sensors may be located on a lower portion of the conductive plate, the lower portion of the conductive plate being intended to be oriented towards the bottom of the toilet. Thus, if the urine stream comes into contact with the upper portion of the plate, the runoff of the liquid on the free face of the plate can be used for the temperature measurement. Indeed, the runoff increases the duration during which the urine is in contact with the conductive plate, which makes it possible to improve the heat transfers from the liquid to the conductive plate.

[0021] Each temperature sensor may be a thermistor. Such sensors are insensitive to ambient disturbances, require low-complexity signal conditioning, and can cover a wide temperature range. The voltage at Thermistor terminals vary with temperature (because its resistance varies with temperature).

[0022] Alternatively, each temperature sensor could be a semiconductor temperature sensor. Such sensors exhibit good robustness and accuracy while being relatively inexpensive. Alternatively, each temperature sensor may be an infrared thermopile sensor. Similarly, these temperature sensors have a voltage across them that varies with temperature.

[0023] Each temperature sensor may have a time constant of less than one second, for example less than 0.2 seconds. Thus, each temperature sensor can quickly record the temperature change, which makes the device compatible with the short duration of a urine stream.

[0024] Each temperature sensor may comprise a flat face in contact with the conductive plate. Indeed, the flat face promotes the transfer of heat from the conductive plate to each temperature sensor. In addition, the flat face allows easier positioning and maintenance of each temperature sensor on the conductive plate.

[0025] Each temperature sensor may be attached to a rear face of the conductive plate (opposite the free face). In particular, each temperature sensor may be bonded to the rear face of the conductive plate using a heat-conducting adhesive, for example the heat-conducting adhesive is an Ultra-Violet (UV) curing adhesive or a hardening thermal paste. Such a conductive adhesive makes it possible to fix the temperature sensor(s) to the conductive plate without compromising the heat transfer from the conductive plate to the temperature sensor(s). It is noted that the use of the thermal paste allows good heat conduction from the conductive plate to the temperature sensor(s). Alternatively, the use of the UV adhesive makes it possible to improve the retention of the temperature sensor(s) on the conductive plate.

[0026] The analysis device may comprise a plurality of temperature sensors, and the same volume of conductive glue may be placed between each temperature sensor and the heat-conducting plate. Thus, the response time to a change in the temperature of the plate is the same for all of the temperature sensors. The response times are uniform for all of the temperature sensors.

[0027] The device may comprise at least one processing unit, configured to determine a temperature datum from the temperature information measured by the at least one temperature sensor. The processing unit makes it possible to process the temperature measurements of each temperature sensor to deduce therefrom urine temperature. In particular, each processing unit can integrate a temperature sensor.

[0028] The device may comprise an electronic control unit, configured to generate the urine temperature data from the temperature measurements obtained by the sensor(s). The electronic control unit may comprise the processing unit(s). The electronic control unit may further comprise a wireless communication module, configured to transmit the urine temperature data via a wireless network (WiFi, Bluetooth, cellular network, etc.).

[0029] The housing may be made of insulating material, for example plastic, of the non-heat-conducting plastic type (i.e. not loaded with conductive elements). Thus, the heat transfers between the conductive plate and the housing are reduced. The influence of the housing on the temperature information measured by each temperature sensor is thus limited.

[0030] The housing may define an opening receiving the heat-conducting plate. The opening makes it possible to reduce the contact surface between the conductive plate and the housing. This avoids creating thermal bridges between the conductive plate and the housing.

[0031] The housing may include a support structure for the conductive plate. The conductive plate may be supported by the support structure. Thus, the rigidity of the conductive plate may be increased.

[0032] The conductive plate can be curved towards the outside of the housing. The device then takes a circular pebble shape. The circular pebble shape allows good runoff of urine on the outer surface of the device. The circular pebble shape is also aesthetic and discreet.

[0033] The housing may have a light indicator, which comprises for example at least one light-emitting diode (LED), configured to display information to the user. Information such as a battery charge level, or an indication that a temperature measurement is in progress, can be easily transmitted to the user (for reasons of readability, the remainder of the description will refer to a user).

[0034] The device may comprise a means of communication (for example wireless) with a communication device associated with the user and / or a remote server. The analysis performed by the device may be transmitted to the user, in particular to monitor basal temperature. Monitoring basal temperature may allow fertility monitoring or to detect the occurrence of a feverish episode.

[0035] The device may be installed in the toilet by cooperation with a fastening element installed in or on the toilet. The device may thus comprise a fastener cooperating with the fastening element. For example, the fastener may comprise a magnetic attachment configured to cooperate with at least one magnet of the attachment element. For example, the attachment may include a mechanical attachment configured to cooperate with a mechanical engagement of the attachment element. Thus, the device may be easily removed from the toilet, for example to recharge a battery of the device. Alternatively, the attachment of the device may be installed in the toilet without cooperation with a fastening element specifically installed in or on the toilet. For example, the attachment may be a hook integral with the housing and configured to engage with a rim of the bowl (from above or below).

[0036] According to another aspect, there is provided a method for measuring urine temperature implemented by the device described above, comprising: - measuring at least one temperature information using the at least one temperature sensor when a urine jet is received on the front face of the conductive plate; - determine a urine temperature data from at least one temperature information.

[0037] Determining the urine temperature data may include performing a two-exponential regression on the temperature information and choosing the boundary value of the regression as the urine temperature data.

[0038] The device may comprise a plurality of temperature sensors, each temperature sensor making it possible to determine a urine temperature datum, and the method may comprise choosing the maximum temperature from the temperature datum as the final urine stream temperature datum.

[0039] The method may include sending the temperature data to a nearby device and / or a remote server.

[0040] According to yet another aspect, there is provided a method of tracking a fertility period comprising: - implement the urine temperature measurement process, - compare the urine temperature data with previous urine temperature data; - detect variations between temperature data to determine a period of the menstrual cycle. Brief description of the drawings

[0041] Other characteristics, details and advantages will appear on reading the detailed description below, and on analyzing the attached drawings, in which: Fig.l

[0042] [Fig.l] schematically illustrates a urine analysis device mounted in a toilet according to one embodiment. Fig. 2

[0043] [Fig.2] schematically illustrates a detail of [Fig.l] according to one embodiment. Fig. 3

[0044] [Fig.3] schematically illustrates a perspective view of the analysis device urine of [Fig.l] according to one embodiment. Fig. 4

[0045] [Fig.4] schematically illustrates an exploded view of the urine analysis device of the [Fig.l] according to one embodiment. Fig. 5

[0046] [Fig.5] schematically illustrates a view of a rear face of a conductive plate and temperature sensors that can be implemented in the urine analysis device of [Fig.l] according to one embodiment. Fig. 6

[0047] [Fig.6] schematically illustrates a temperature sensor which can be implemented implemented in the urine analysis device of [Fig.l] according to one embodiment. Fig. 7

[0048] [Fig.7] schematically illustrates a processing unit integrating the sensor of temperature of [Fig.6] according to one embodiment. Fig. 8

[0049] [Fig.8] illustrates an example of temperature evolution measured by the unit of processing of [Fig.7] according to one embodiment. Fig. 9

[0050] [Fig.9] schematically illustrates electronic components that can be implemented implemented in the urine analysis device of [Fig.l] according to one embodiment. Fig. 10

[0051] [Fig. 10] illustrates a method implemented by the urine analysis device of [Fig.l]. Fig. 11

[0052] [Fig. 11] illustrates a method exploiting the urine analysis device of [Fig.l]. Fig. 12

[0053] [Fig. 12] schematically illustrates a front view of a urine analysis device according to another embodiment. Fig. 13

[0054] [Fig. 13] schematically illustrates a front view of a urine analysis device according to another embodiment. Fig. 14

[0055] [Fig. 14] schematically illustrates a front view of a urine analysis device according to another embodiment. Description of the embodiments

[0056] [Fig.l] illustrates a toilet 10 equipped with a urine analysis device 12.

[0057] In a known manner, the toilet 10 comprises a water tank 14, a bowl 16, a seat 18 and a cover 20. The urine analysis device 12 is arranged on an internal wall 16a of the bowl 16 of the toilet 10. The urine analysis device 12 is entirely received in the toilet 10. The urine analysis device 12 is discreet.

[0058] As illustrated in [Fig.2], the urine analysis device 12 is positioned on the inner wall 16a of the toilet 10 by a fixing element 22. The fixing element 22 allows the urine analysis device 12 to be easily removed from the toilet 10, for example to recharge a battery 68 of the urine analysis device 12. The fixing element 22 can remain positioned on the toilet 10, while the urine analysis device 12 can be removed.

[0059] The fixing element 22 here comprises a suction cup 24 and magnets 26. The suction cup 24 can adhere to the internal wall 16a of the toilet 10. The magnets 26 are intended to cooperate with a fastener, here comprising magnets or magnetic parts, of the urine analysis device 12. Alternatively, a hook-type mechanical coupling can cause the fixing element 22 and the urine analysis device 12 to cooperate. The positioning of the fixing element 22 can be chosen so that the urine analysis device 12 is on a path of the urine stream secreted by a user. The urine analysis device 12 can be positioned so as to be on the path of the user's urine stream regardless of their gender.

[0060] Alternatively, for adhesion to the inner wall 16a of the toilet 10, the fixing element 22 may comprise an adhesive, in particular a sticker. Still as a variant, the fixing element 22 may comprise a hook configured to engage with a rim of the bowl 16.

[0061] Alternatively, the urine analysis device 12 is positioned on the inner wall 16a of the toilet 10 without using a dedicated attachment element. The attachment of the device alone may allow such positioning. The attachment of the device may be a hook configured to engage with a rim of the toilet 10. In this alternative, when the urine analysis device 12 is removed from the toilet 10, the latter are again in their original condition. Conversely, when the attachment element 22 is used, the latter may remain in place in the toilet 10 when the urine analysis device 12 is removed from the toilet 10.

[0062] In the illustrated example, the fixing element 22 is housed in a housing provided on the urine analysis device 12. The housing may be provided at the level of charging connectors of the battery 68 of the urine analysis device 12. Thus, the charging connectors can be protected from the water of the toilet 10.

[0063] The fastening element 22 may also comprise mechanical aids. The mechanical aids may for example be indentations. The mechanical aids may facilitate the positioning of the urine analysis device 12 when it is inserted into the toilet 10. The correct positioning of the urine analysis device 12 in the toilet 10 ensures the correct operation of the urine analysis device 12.

[0064] Furthermore, as can be seen in [Fig. 2], the urine analysis device 12 here has a circular pebble shape. The urine analysis device 12 thus has a shape allowing urine to trickle onto the outer surfaces of the urine analysis device 12. The contact time between the urine analysis device 12 and the urine secreted by a user in the toilet 10 is improved. The user does not need to “aim” to ensure that a jet of urine comes into contact with the urine analysis device 12. The circular pebble shape also gives the urine analysis device 12 a discreet and aesthetic appearance.

[0065] As seen in Figures 3 and 4, the urine analysis device 12 comprises a housing 28 and a heat conductive plate 30, mounted on the housing or integrated into the housing. a) Conductive plate

[0066] The conductive plate 30 comprises a free face 40 intended to be oriented towards the inside of the bowl 16 of the toilet 10. The urine jet can come into contact with the urine analysis device 12 and flow over the free face 40 of the conductive plate 30. The temperature of the urine jet is transmitted to the conductive plate 30. The conductive plate 30 acts as a spatial low-pass filter making it possible to homogenize the temperature of the urine over the entire surface of the conductive plate 30.

[0067] The conductive plate 30 also comprises a rear face 42, opposite the free face 40 and oriented towards the housing 28 or towards the inside of the housing 28. The rear face 42 makes it possible to transmit the temperature of the urine recorded by the free face 40 of the conductive plate 30 to electronic components contained inside the housing 28.

[0068] As visible in Figures 3 and 4, the conductive plate 30 extends over the majority of a front face of the housing 28. The conductive plate 30 occupies in particular a surface area greater than 80% of the front face of the housing 28. The front face of the housing 28 designates the face oriented towards the inside of the bowl 16 of the toilet 10 when the urine analysis device 12 is received in the toilet 10. The surface area of the urine analysis device 12 available to come into contact with the urine is thus optimized.

[0069] For example, the conductive plate 30 may have a surface area greater than 3,500 mm2, or even greater than 3,800 mm2. Such a surface area provides a good compromise between the surface area available for measuring urine temperature and the size of the urine analysis device 12.

[0070] Here, the conductive plate 30 is of substantially circular shape. The diameter DI of the conductive plate 30 is between 60 and 80 mm, for example 70 mm or approximately 70 mm. Furthermore, the diameter D2 of the housing 28, in the form of a circular roller, is here between 75 and 110 mm.

[0071] Furthermore, the conductive plate 30 has a thickness of, for example, between 0.1 mm and 0.5 mm. In one embodiment, the conductive plate 30 has a thickness of approximately 0.3 mm. The thickness of the conductive plate 30 corresponds to the distance separating the free face 40 and the rear face 42 of the conductive plate 30. Such a thickness makes it possible to ensure a low heat capacity of the conductive plate 30 for good heat transfer of the urine to the device, while ensuring that the conductive plate 30 has sufficient rigidity for its integration into the urine analysis device 12.

[0072] The conductive plate 30 may also be curved towards the outside of the housing 28. Such a conductive plate 30 is compatible with the circular pebble shape of the urine analysis device 12.

[0073] The conductive plate 30 is made of a heat-conducting metal. The metal forming the conductive plate 30 is chosen to have good heat-conducting properties. In one embodiment, the conductive plate 30 is made of aluminum. Indeed, aluminum has good resistance to humidity and maintains a good aesthetic when the urine analysis device 12 is exposed to water or urine. Alternatively, the conductive plate 30 could be made of a copper alloy or a stainless steel. Alternatively, the conductive plate 30 could be made of a heat-conducting plastic. Such a plastic may comprise a polymer containing current-conducting elements such as graphite or containing ceramics such as aluminum nitride.

[0074] The conductive plate 30 may be fixed to the housing 28 by gluing, screwing or any other means accessible to those skilled in the art. A seal may be provided between the conductive plate 30 and the housing 28. The seal makes it possible to isolate the interior of the housing 28 from the water in the toilet 10. b) Case

[0075] The housing 28 makes it possible to house the electronic components of the urine analysis device 12 and to protect them from the urine jet by housing them in a sealed volume (by sealed, we essentially mean sealed, i.e. sealed against unwanted introduction of urine into the device). The sealed volume can further be closed by the conductive plate 30. The housing 28 and the conductive plate 30 thus define the sealed volume, inside which the electronic components of the analysis device 12 can be housed

[0076] Here, the housing 28 comprises a front shell 32 and a rear shell 34. The front shell 32 and the rear shell 34 may, for example, be connected by screwing. A seal may be provided between the front shell 32 and the rear shell 34. The electronic components contained in the housing 28 may be protected from the water from the toilet 10.

[0077] The housing 28 is made of a thermally insulating material. Heat transfers from the housing 28 to the heat-conducting plate 30 can be reduced. The influence of the housing 28 on the temperature of the conductive plate 30 is reduced. For example, the housing 28 is made of plastic, in particular a non-conductive plastic. The housing 28 then has good thermal insulation, while being relatively inexpensive and easily manufactured, in particular by injection molding.

[0078] As visible in [Fig.4], the housing 28 defines an opening 36 intended to receive the conductive plate 30. The opening 36 makes it possible to reduce the contact surface between the housing 28 and the conductive plate 30, further limiting the thermal transfers between the housing 28 and the conductive plate 30. The influence of the temperature of the housing 28 on the temperature of the conductive plate 30 is reduced.

[0079] Furthermore, the housing 28 may define a reinforcing structure. The reinforcing structure may, for example, take the form of ribs extending inside the housing 28. The reinforcing structure may support the conductive plate 30, so as to increase its rigidity. c) temperature sensors

[0080] The urine analysis device 12 comprises at least one temperature sensor 44 received inside the housing 28. Each temperature sensor 44 makes it possible to locally obtain temperature information from the conductive plate 30. The temperature information may be a temperature value, i.e. a discrete measurement, or a measurement of the change in temperature over time, i.e. a continuous or quasi-continuous measurement. In particular, the temperature information may be obtained by recovering the voltage across the terminals of the temperature sensor. After processing, the temperature information may make it possible to obtain urine temperature data. The processing will be described later.By locally, it is meant that each temperature sensor 44 makes it possible to measure the temperature and / or the change in temperature (by taking a plurality of temperature measurements) of at least one portion of the conductive plate 30, which is a portion located in the vicinity of the temperature sensor 44.

[0081] Each temperature sensor 44 has a time constant of less than 1 second, preferably less than 0.2 seconds. The time constant characterizes the response of the temperature sensor 44 to a change in temperature. Each temperature sensor 44 can thus detect information on the temperature of the conductive plate 30 caused by a short stream of urine. Each temperature sensor 44 can also detect information on the temperature when the contact of the urine with the conductive plate 30 is of short duration.

[0082] In one embodiment, each temperature sensor 44 is a thermistor. Indeed, thermistors are not very sensitive to ambient disturbances, are not very complex to operate and can cover a wide range of temperatures. They are also easily accessible. Alternatively, each temperature sensor 44 could be a semiconductor temperature sensor. Such temperature sensors have good robustness and good accuracy while being relatively inexpensive. Alternatively again, each temperature sensor 44 can be a thermopile infrared sensor.

[0083] Certain sensors (such as thermistors, semiconductor temperature sensors and thermopile infrared sensors) also make it possible to continuously measure the temperature, and therefore to measure the change in temperature over time (for example during urination).

[0084] In the example illustrated in [Fig. 5], the device 12 comprises a plurality of temperature sensors 44 (seven temperature sensors illustrated). The temperature sensors 44 are positioned so as to allow temperature information to be measured at several locations on the conductive plate 30. The plurality of temperature sensors 44 makes it possible to increase the probability that one of the temperature sensors is located in the vicinity of the point of impact of the urine stream on the conductive plate 30. The temperature information measured by the temperature sensor 44 close to the point of impact can then be used to determine the urine temperature data more accurately.

[0085] [Fig. 5] illustrates an example of arrangement of the plurality of temperature sensors 44 on the rear face 42 of the conductive plate 30. The sensors 44 are thus protected by the housing 28, that is to say they are in the sealed volume defined by the housing 28 and the conductive plate 30. In this example, seven temperature sensors 44 are arranged on the rear face 42 of the conductive plate 30. The number of temperature sensors 44 can be chosen according to the dimensions and the thickness of the conductive plate 30. The number of temperature sensors 44 is adapted to the conductivity of the conductive plate 30 and to its dimensions. For example, the plurality of temperature sensors comprises between 2 and 20 temperature sensors, or even between 3 and 10 or even 5 and 10.The distribution of the temperature sensors on the conductive plate 30 can be regular (for example: every 60° in a circle around the center of the plate, with or without a temperature sensor at the level of the . center; for example every 90° with or without a temperature sensor at the center) or essentially regular.

[0086] Here, a majority of the plurality of temperature sensors 44 is located on a lower portion of the conductive plate 30 (in [Fig. 5], at least four of the seven temperature sensors are on the lower portion). The lower portion of the conductive plate 30 corresponds to the portion of the conductive plate 30 facing the bottom of the bowl 16 of the toilet 10 when the urine analysis device 12 is received in the toilet 10. Therefore, the temperature sensors 44 can exploit the runoff of urine on the free face 32 of the conductive plate 30. The runoff of urine increases the contact time of the conductive plate 30 with the urine, thus improving the heat transfer from the urine to the conductive plate 30. The temperature information measured by each temperature sensor 44 can tend towards the temperature of the urine.

[0087] [Fig. 6] illustrates in more detail an exemplary temperature sensor 44. As illustrated, the temperature sensor 44 includes a planar face 46. The planar face 46 may be in contact with the rear face 42 of the conductive plate 30 to improve heat transfer from the conductive plate 30 to the temperature sensor 44.

[0088] Each temperature sensor 44 is bonded to the rear face 34 of the conductive plate 30 using a heat-conducting adhesive. The conductive adhesive ensures good heat transfer from the conductive plate 30 to the temperature sensor 44. The conductive adhesive may in particular be an ultraviolet (UV) polymerized adhesive. The conductive adhesive in particular provides good mechanical retention of each temperature sensor 44 on the conductive plate 30. The conductive adhesive may also be a thermal paste, in particular a hardening thermal paste. The thermal paste further improves the heat conduction from the conductive plate 30 to the temperature sensor(s) 44.

[0089] When the device 12 comprises a plurality of temperature sensors 44, each temperature sensor 44 is bonded using the same volume of conductive glue. The same volume of glue ensures that the heat transfer is substantially identical from one temperature sensor 44 to another. d) Conditioning circuit

[0090] The device 12 further comprises one or more processing units 48. Each temperature sensor 44 is integrated into a processing unit 48. As visible in [Fig.7], the processing unit 48 comprises an electronic circuit 50 and a calculation unit 52.

[0091] More specifically, the electronic circuit 50 typically comprises a voltage divider bridge 51, a filtering and amplification stage 54 and an analog-to-digital converter 56.

[0092] The voltage divider bridge 51 makes it possible to linearize a signal, typically a voltage signal, generated by the temperature sensor 44. The voltage divider bridge 51 makes it possible to overcome the non-linear relationship between the signal generated by the sensor 44 and the temperature. It appears possible to calibrate the temperature sensor(s) 44 from two measurement points.

[0093] The filtering and amplification stage 54 is connected to an output of the voltage divider bridge 51. The filtering may in particular be a low-pass filter applied to the output signal of the voltage divider bridge 51. The filtering makes it possible to reduce noise and other high-frequency artifacts that may be found in the signal. The amplification consists of applying a gain to the signal, making it possible to increase the sensitivity of the circuit to the temperature change of the conductive plate 30. Thus, each temperature sensor 44 can measure a temperature range of 14°C to 41°C, with a resolution of 1 thousandth of a degree.

[0094] The analog-digital converter 56 is connected to an output of the filtering and amplification stage 54. The digital signal obtained can be processed by the calculation unit 58.

[0095] [Fig.8] illustrates an example of the temperature change of the conductive plate 30 measured by the temperature sensor 44 when the user has urinated. The temperature change illustrated corresponds to the output signal of the electronic circuit 50. The calculation unit 52 is configured to determine the urine temperature data from the temperature information obtained by the temperature sensor 44.

[0096] In an embodiment making it possible to obtain more precise temperature data, the calculation unit 52 performs a regression of two exponentials on the temperature evolution to analytically determine the temperature data. Indeed, as visible in [Fig.8], the temporal evolution of the temperature can be described with a combination of two simultaneous processes. The first process is a rapid increase in temperature linked to the heat input on the conductive plate 30 by the urine. The second process is a slower rise in temperature linked to the increase in the temperature of the air inside the housing 28. Therefore, the regression of two exponentials makes it possible to take into account both processes.

[0097] The two-exponential regression carried out on the temperature evolution can in particular be the following:

[0098] [Math.l] T = «() - a^e- - a2^

[0099] The first exponential (index 1) models the heat transfers between the urine and the conductive plate 30, and the second exponential (index 2) models the heat transfers between the air inside the housing 28 and the conductive plate 30. The limit value of the regression curve is a0. The limit value corresponds to the urine temperature data measured by the temperature sensor 44. The temperature data is thus determined analytically by regression of the change in the temperature measured by each temperature sensor 44, using the limit value a0 determined by the regression. This makes it possible to improve the quality of the measurement, in particular allowing better precision and optimization of the information.

[0100] Alternatively, no regression may be used and the maximum temperature measured using the temperature sensors is considered as the temperature data. The temperature data is thus determined empirically.

[0101] Of course, other algorithms accessible to those skilled in the art can be used by the calculation unit 56 to determine the urine temperature data.

[0102] It is noted that when the urine analysis device 12 comprises a plurality of temperature sensors 44, each calculation unit 52 determines a urine temperature data. A final temperature can be chosen from the determined temperature data. Alternatively, the final temperature could correspond to an average of the temperatures determined by each calculation unit 52 (either analytically or empirically, as described previously).

[0103] Here, the final temperature is chosen as the maximum temperature from among the determined temperature data. The maximum temperature may correspond to that determined by the temperature sensor 44 closest to the point of impact of the urine jet on the conductive plate 30. Then, the final temperature data chosen is the most faithful to the temperature of the urine. d) Other components

[0104] Turning to [Fig.9], the urine analysis device may include various electronic components.

[0105] The urine analysis device 12 may include an additional temperature sensor 58. The additional temperature sensor 58 may be placed in the housing 28 to estimate the temperature of the air in the housing 28. The additional temperature sensor 58 may thus account for heat transfers with the air in the housing 28.

[0106] The urine analysis device 12 may comprise a light indicator 60. The light indicator 60 may for example comprise one or more light-emitting diodes (LEDs). The light indicator 60 may be visible from outside the housing 28. The light indicator 60 may be used to inform the user of a state of the urine analysis device 12. For example, the indicator light 60 may indicate a charge state of the battery 64, that an analysis is in progress or that an analysis has been carried out. The indicator light 60 may for example light up when a temperature above a predetermined threshold is detected by the temperature sensor(s) 44. For example, the predetermined threshold may be 35°C. The predetermined threshold corresponds to a situation where a urine jet is received on the conductive plate 30.

[0107] The urine analysis device 12 may comprise a button 62. The button 62 is placed inside the housing 28. The button 62 may be accessed by the user by unscrewing the front shell 32 relative to the rear shell 34 of the housing 28. The button 62 may for example allow the urine analysis device 12 to be reset and / or a wireless association of the device 12 with a nearby device, for example a smartphone.

[0108] The urine analysis device 12 may also comprise a test assembly 66. The test assembly 66 may, for example, be capable of detecting the concentration of one or more compounds in the urine. In this case, the housing 28 has a collection port for collecting a urine sample. The test assembly 68 may convey the collected urine sample from the collection port for analysis.

[0109] For example, the test set 66 may perform a colorimetric analysis on the urine sample. The urine sample may be injected onto a test strip. The test strip is then analyzed by an optical system.

[0110] Furthermore, the urine analysis device 12 is powered by the battery 68, in particular of the lithium ion type. The battery 68 is arranged in the housing 28 to power the electronic components of the urine analysis device 12. The battery 68 has, for example, a capacity of 1,080 mAH. Such a capacity is a good compromise between the size of the battery 68 in the housing 28 and its autonomy.

[0111] The battery 68 includes charging connectors. The charging connectors may be accessible from outside the housing 28 to allow recharging of the battery. For example, the urine analysis device 12 may be placed on a base to connect the charging connectors to a power source. e) Electronic control unit

[0112] As seen in [Fig.9], the urine analysis device 12 comprises an electronic control unit 70. The electronic control unit 70 is received in the housing 28.

[0113] The electronic control unit 70 is connected to the electronic circuit 50 of each processing unit 48. In addition, the control unit 70 integrates the calculation unit 52 of each processing unit 48. Thus, the control unit 70 acquires the temperature information measured by each temperature sensor 44. The unit control unit 70 processes each temperature information to determine the urine temperature data, for example by implementing the different processing operations (regression, selection of the maximum temperature value, etc.). When the device 12 comprises a plurality of temperature sensors 44, the control unit 70 can determine the final urine temperature data. The control unit 70 thus makes it possible to generate urine temperature data from the temperature measurements made by the temperature sensors 44.

[0114] The control unit 70 is also connected to the other electronic components of the urine analysis device 12. The control unit 70 can cooperate with the other electronic components.

[0115] Furthermore, the electronic control unit 70 comprises at least one wireless communication module, configured to remotely transmit at least the temperature data.

[0116] The electronic control unit 70 may comprise a first short-range wireless communication module COM1. The first communication module COM1 uses a local network, for example of the Bluetooth, Low-Energy Bluetooth (BLE) or Wi-Fi type. The first communication module COM1 communicates with a device 72 in proximity to the toilet 10. The device in proximity 72 may for example be a smartphone, a connected watch or any other device associated with the user. Alternatively, the device in proximity 72 may be a remote device mounted in proximity to the toilet 10. Such a remote device may for example comprise a button and a display.

[0117] The first communication module C0M1 may receive an analysis command from the nearby device 72. The analysis command informs the urine analysis device 12 that the user wishes to perform an analysis. The analysis is notably a measurement of urine temperature, but could also be any other type of analysis that can be implemented by the urine analysis device 12.

[0118] The first communication module C0M1 may also receive an identification of the user from the nearby device 72. The identification may enable the urine analysis device 12 to distinguish among different users using the restroom 10. The analysis is then specific to the user.

[0119] The first communication module C0M1 can also send an analysis result to the nearby device 72. The analysis result includes in particular the urine temperature data, but could also be any other result that can be determined by the urine analysis device 12. The user can access the result immediately after an analysis.

[0120] The electronic control unit 70 may comprise a second wireless communication module COM2. The second communication module may be provided in addition to or as a replacement for the first communication module COM1. The second communication module COM2 uses the cellular network, for example GSM, 3G, 4G(-LTE), LTE-M, 5G or any cellular network dedicated to connected objects. The second communication module COM2 gives the urine analysis device 12 a communication interface to a remote server 74.

[0121] The second communication module COM2 can send the analysis result to the remote server 74. The result can be sent directly, without passing through a proximity device 72 as described previously. The result can then be made accessible to the user from any device suitable for connecting to the server 74, for example the user's smartphone or a computer. A plurality of results can be stored by the server 74, making it possible to track a plurality of analyses.

[0122] The control unit 70 further comprises a memory MEM. The memory MEM can store a plurality of analysis results. The plurality of results can be sent periodically to the server 74, for example once a week. The frequency of use of the second communication module COM2 can be reduced, reducing the power consumption of the control unit 70.

[0123] Preferably, the control unit 70 is constructed by a system-on-chip. A first Bluetooth Low Energy (BLE) chip may support the control of the electronic components of the urine analysis device 12. The first BLE chip may also support the communication with the nearby device 72. A second Wifi chip may support the data exchange with the remote server 74. Thus, the second system-on-chip may be turned off when communication with the server 74 is not in use. The power consumption of the control unit 70 is improved, and the consumption of the battery 68 is reduced.

[0124] The control unit 70 may also be divided into different printed circuits. Each printed circuit may control different electronic components of the urine analysis device 12. A main circuit may ensure cooperation between the different printed circuits. Such a construction allows flexibility in the construction of the electronic control unit 70 and its integration into the housing 28. 0 Process aspect

[0125] A method 100 implemented by the urine analysis device 12, in particular the control unit 70 of the urine analysis device 12, is described below with reference to [Fig. 10].

[0126] In a first step 110, the urine analysis device 12 initializes an analysis. The initialization of an analysis may in particular comprise the activation of the temperature sensor(s) 44. Alternatively, the temperature sensor(s) 44 may continuously measure the change in the temperature of the conductive plate 30, and the initialization of an analysis includes starting a recording of the measurement.

[0127] The device 12 can initiate an analysis in response to a request from the user via the nearby device 72. The user can, for example, launch a command from the smartphone or press a button on the remote device.

[0128] The device 12 may initiate an analysis in response to a detection by the urine analysis device 12 of the proximity device 72, worn by the user. For example, the detection may include a detection that the proximity device 72 is at a distance from the urine analysis device 12 that is less than a threshold (e.g. 2m), or less than a threshold for at least a predetermined duration. The analysis is then initiated automatically, without action on the part of the user.

[0129] The device 12 may initiate an analysis in response to a detection of a urine stream. For example, the detection may include a detection by the temperature sensor(s) 44 that the measured temperature exceeds a predetermined threshold, for example 35°C. The analysis may then be initiated without communication with the nearby device 72.

[0130] In a second step 120, the device 12 measures the temperature to generate temperature data. Each temperature sensor 44 locally measures temperature information of the conductive plate 30 while the user is urinating. For example, the information is a change in temperature over time. Then, the temperature can be measured until the temperature of the conductive plate 30 falls below the threshold. The change in temperature can also be measured for a determined duration, for example between 2 and 4 minutes.

[0131] The temperature information measured by each sensor 44 may be linearized to facilitate calibration of the temperature sensor(s). The temperature information may also be amplified to improve the sensitivity of the measurement and filtered to reduce measurement noise. The temperature measurements may further be converted into a digital signal to enable its processing.

[0132] In a third step 130, the device 12 uses the temperature measurements of the plate to determine a urine temperature datum. In particular, each temperature information can be used to determine a urine temperature datum. The urine temperature can for example be determined by applying a two-exponential regression on the temperature evolution. The limit value of the regression curve is then chosen as the urine temperature datum.

[0133] When the urine analysis device 12 comprises a plurality of temperature sensors 44, the urine temperature data estimated for each temperature sensor 44 can be compared. More particularly, the maximum temperature can be identified. The maximum temperature can be chosen as the final urine temperature data.

[0134] According to a fourth step 140, the device 12 transmits the determined temperature data to the nearby device 72. The nearby device 72 can display the temperature data to the user. The nearby device 72 can also display a curve illustrating the temperature data and previously measured temperature data. The user can thus visualize the temperature variations over time.

[0135] According to a fifth step 150, complementary or alternative to the fourth step 140, the urine temperature data can be sent to the remote server 74, typically without passing through the nearby device. The remote server 74 can store the measurements taken to allow the user to access them.

[0136] In an example application, the urine analysis device 12 can allow a user to identify a fertility window. Thus, a method 200 for tracking the fertility period is described below, with reference to [Fig. 11].

[0137] The method 200 comprises a first step of implementing the method 100 described above.

[0138] In a second step 210, the temperature data is compared to previously obtained temperature data. Preferably, a temperature measurement is taken each day, and the previous temperature data correspond to the measurements taken on the days preceding the day in which the new temperature data was obtained.

[0139] In a third step 220, the variations between the different temperature data are identified. The variations make it possible to identify the stage of the user's menstrual cycle. For example, a drop in temperature may indicate the start of a fertile period and an increase in temperature may indicate that ovulation has taken place.

[0140] Alternatively, the urine analysis device 12 may be used to identify a feverish episode. In this case, variations between the different temperature data may detect an abnormal increase in basal temperature. g) Variants

[0141] The urine analysis device 12 described above is not limited to the embodiments described above, but is, on the contrary, capable of numerous variants accessible to those skilled in the art.

[0142] The urine analysis device has been described in relation to a so-called conventional toilet 10, comprising a seat on which the user can sit. However, the urine analysis device can be installed in a urinal.

[0143] The conductive plate 30 could in particular be textured so as to channel the urine towards the temperature sensor(s) 44. This solution aims to improve the precision of the temperature change measured by the temperature sensor(s) 44.

[0144] In the example of [Fig. 12], a plurality of ribs 76 extend from a periphery of the conductive plate 30 towards a central portion of the conductive plate 30. The temperature sensor(s) 44 could then be provided at the central portion of the conductive plate 30.

[0145] Alternatively, in the example of [Fig.13], the lower part of the conductive plate 30 has a projection 78. The projection 78 makes it possible to retain the urine flowing onto the free face 40 of the conductive plate 30. The contact time between the urine and the conductive plate 30 is increased.

[0146] Furthermore, in the example of [Fig. 14], the housing 28 forms a recess 80 in which the conductive plate 30 is received. The recess 80 may form a channel extending from an upper portion of the housing 28 to a lower portion of the housing 28. The conductive plate 30 may extend at the lower portion, such that urine flowing in the channel flows over the conductive plate 30.

[0147] Furthermore, the housing 28 and the conductive plate 30 could be made of a single piece. The entire outer surface of the urine analysis device 12 is then made of a heat-conducting material. The heat transfer between the urine and the analysis device 12 can be increased.

[0148] In the embodiment where the plate is made of conductive plastic, the manufacturing method may involve obtaining a plastic for the housing that is not heat-conductive and a plastic for the conductive plate that is heat-conductive. To this end, the load of conductive element may be adjusted during the manufacturing of the part. Typically, during a method of manufacturing the part by molding, a part of the mold corresponding to the housing may receive a simple polymer and a part of the mold corresponding to the conductive plate may receive a polymer (for example the same as that for the housing) loaded with conductive elements (see below). Such a method makes it possible to generate a single-piece part which, thanks to the properties of its materials, comprises regions that are more thermally conductive than others.

Claims

Claims

1. A urine analysis device (12) configured to be fully positioned inside a toilet (10), the device comprising: - a housing (28), - a heat-conducting plate (30), mounted on the housing (28) and comprising a free face (40) intended to receive a jet of urine directly from a user urinating in the toilet (10), - at least one temperature sensor (44), each temperature sensor (44) being configured to locally measure temperature information of the conductive plate (30), - an electronic control unit (70) received in the housing (28) and configured to acquire the temperature information measured by each temperature sensor (44).

2. Device according to claim 1, wherein the conductive plate (30) has an area greater than 3500 mm2, for example greater than 3800 mm2.

3. A device according to claim 1 or 2, wherein the conductive plate (30) is made of heat-conducting metal, for example the conductive plate (30) is made of aluminum.

4. A device according to any one of claims 1 to 3, wherein the at least one temperature sensor (44) is positioned in a volume defined by the housing (28) and the heat conducting plate (30).

5. A device according to any one of claims 1 to 4, wherein the analysis device comprises a plurality of temperature sensors (44).

6. The device of claim 5, wherein a majority of the plurality of temperature sensors (44) are located on a lower portion of the conductive plate (30), the lower portion of the conductive plate (30) being intended to be oriented towards the bottom of the toilet (10).

7. Device according to claim 5 or 6, wherein each temperature sensor makes it possible to determine a urine temperature datum and the electronic control unit (70) is configured to choose, from the determined temperatures, the maximum temperature as the final urine temperature datum.

8. Device according to any one of claims 1 to 7, comprising at least one processing unit (48) configured to determine a urine temperature data item from the temperature information measured by the temperature sensor (44).

9. Device according to claim 8, wherein the processing unit is configured to determine the urine temperature data by being configured to perform a two-exponential regression on the temperature information and choose the limit value of the regression as the urine temperature data.

10. A device according to any one of claims 1 to 9, wherein the housing (28) is made of insulating material, for example the housing (28) is made of plastic.

11. A device according to any one of claims 1 to 10, wherein the housing (28) defines an opening (36) receiving the heat conducting plate (30).

12. A device according to any one of claims 1 to 11, the device (12) having a circular roller shape, wherein the conductive plate (30) is curved towards the outside of the housing (28).

13. Device according to any one of claims 1 to 12, comprising a wireless communication means (50) with a communication device (60) associated with the user and / or a remote server (64), for transmitting at least one temperature data item.

14. Method for measuring urine temperature implemented by the device according to any one of the preceding claims, comprising: - measuring at least one temperature information using the at least one temperature sensor (44) when a jet of urine is received on the free face (40) of the conductive plate (30); - determining a urine temperature data item from the temperature information.

15. The method of claim 14, wherein determining the urine temperature data comprises performing a two-exponential regression on the temperature information and choosing the boundary value of the regression as the urine temperature data.

16. A method according to any one of claims 14 or 15, wherein the device comprises a plurality of temperature sensors (44), each temperature sensor making it possible to determine a urine temperature data, and the method comprises choosing the maximum temperature from among the determined temperatures as the final urine temperature data.

17. A method according to any one of claims 14 to 16, further comprising sending the temperature data to a nearby device and / or a remote server.

18. A method of tracking a fertility period comprising: - implement the temperature measurement method according to one of claims 14 to 17; - compare the urine temperature data with previous urine temperature data; - detect variations between temperature data to determine a period of the menstrual cycle.

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