Detection method for improving stool detection success rate when urine exists in baby diaper

Abstract

The embodiment of the invention provides a detection method for improving the defecation detection success rate when urine exists in a baby diaper, the baby diaper comprises an absorption part and a fixing part, the absorption part comprises a water absorption material, and the fixing part is used for fixing the absorption part to the excretion opening position of a baby diaper user; the baby diaper is provided with a detection device, and the detection device comprises an excrement detection sensor and a urine detection sensor. The method comprises the steps that S110, current urine related data are obtained through the urine detection sensor, and current excrement related gas concentration data are obtained through the excrement detection sensor; s120, setting different current excrement-related gas concentration threshold values according to different current urine-related data; s130, whether the current excrement-related gas concentration data exceed a current excrement-related gas concentration threshold value or not is judged, and if yes, it is judged that excrement exists in the diaper; and S140, the steps S110 to S130 are repeatedly executed.

Description

Technical Field

[0001] The present application relates to the technical field of human and animal excrement detection, and in particular to a detection method for improving the success rate of stool detection when urine is present in a diaper. Background Art

[0002] People with incontinence, such as infants and patients, need to wear diapers. When diaper users urinate, the diaper can absorb the urine, so the urine has little impact on the diaper user, and the need to change diapers is not particularly urgent; when diaper users defecate, the feces cannot be absorbed by the diaper. If the diaper is not changed in time after defecation, the feces will contact the skin for a long time and cause damage to the skin, causing incontinence dermatitis (commonly known as "red buttocks"), so diapers should be changed in time after defecation.

[0003] In order to determine whether there is feces in the diaper so that the nursing staff can take corresponding measures in time, many technical solutions for detecting feces have appeared in the prior art.

[0004] For example, Figure 1 As shown, a defecation and urine detection device 110 is disclosed in the U.S. patent application with publication number US20120109087A1, which is used to be arranged on the outside of the diaper 20 to detect whether there is defecation and urine in the diaper 20, and provide a sound, visible, wireless or vibration signal to the user of the diaper 20 to indicate the presence of defecation and urine. The signal device 110 includes a housing 135, a sensor 120 and an electronic circuit for detecting whether there is defecation and urine in the diaper 20. Among them, the sensor 120 may include an electronic nose sensor 240, which is a sensor that can detect volatile gases, such as a hydrogen sulfide sensor, an ammonia sensor, a skatole sensor, an indole sensor or other suitable sensors, and can determine whether there is excrement and distinguish the type of excrement according to the different types of gases detected.

[0005] like Figure 2 As shown, the U.S. patent application with publication number US20180253957A1 discloses a diaper detection device, including a diaper 900 and a detection device 201 attached and fixed to the outside of the diaper 900. The detection device 201 may have one or more sensors, such as a stool sensor for detecting stool and a urine sensor for detecting urine. The detection device 201 may be configured to send a wireless signal to a computer device when the humidity or gas concentration increases, or when the rate of change of the humidity or gas concentration increases, thereby detecting whether there is excrement in the diaper and distinguishing the type of excrement.

[0006] like Figure 3As shown, a Chinese patent application with publication number CN119214865A discloses an excrement detection system, including a diaper 10 and an excrement detection device 20a; the diaper 10 includes a main body 11 and a receiving bag 13 arranged on the outer surface 111 of the main body 11, and a receiving space 132 is formed between the receiving bag 13 and the main body 11; the excrement detection device 20a includes a urine sensor for detecting urine and a feces sensor for detecting feces. When in use, the excrement detection device 20a is placed in the receiving space 132, and the urine sensor and the feces sensor can be used to detect whether there is excrement in the diaper and the type of excrement, and a corresponding alarm signal is issued to remind the caregiver.

[0007] However, the above existing technologies do not consider the situation where defecation and urination exist at the same time, or do not consider the impact of urination on defecation detection, especially the situation where urination is excreted before defecation. This study found that when urination is present, the detection sensitivity of defecation is low and the defecation cannot be detected in time and the corresponding prompt cannot be issued, and it may even be possible that the defecation cannot be detected. Summary of the invention

[0008] The embodiment of the present application provides a detection method for improving the success rate of stool detection when urine is present in a diaper, which can improve the success rate of stool detection when urine is present in a diaper to solve the above-mentioned problem.

[0009] In a first aspect, an embodiment of the present application provides a method for improving the success rate of stool detection when urine is present in a diaper, wherein the diaper comprises an absorption portion and a fixing portion, the absorption portion comprises a water-absorbing material, and the fixing portion is used to fix the absorption portion at the excretion opening of a diaper user;

[0010] The diaper is provided with a detection device, which includes a stool detection sensor and a urine detection sensor:

[0011] The method comprises:

[0012] S110: acquiring current urine-related data through the urine detection sensor and acquiring current stool-related gas concentration data through the stool detection sensor;

[0013] S120: setting different current defecation-related gas concentration thresholds according to different current urination-related data;

[0014] S130: determining whether the current stool-related gas concentration data exceeds the current stool-related gas concentration threshold, and if so, determining that there is stool in the diaper;

[0015] S140: Repeat the above steps S110-S130.

[0016] In an optional embodiment of the present application, the urine detection sensor includes a humidity sensor, and the current urine-related data X includes current humidity;

[0017] The step S110 includes:

[0018] During the defecation detection process, the current humidity of the diaper is detected by the urine detection sensor;

[0019] The step S120 includes:

[0020] Different current stool-related gas concentration thresholds are set according to different current humidity. When the current humidity is higher, the current stool-related gas concentration threshold is lower.

[0021] In an optional embodiment of the present application, the urine detection sensor includes a humidity sensor, and the current urine-related data X includes a current humidity change value;

[0022] The method further comprises:

[0023] Before performing the stool detection, the initial wetness of the diaper is detected by the urine detection sensor;

[0024] The step S110 includes:

[0025] During the defecation detection process, the current humidity of the diaper is detected by the urine detection sensor, and the current humidity change value is calculated, where the current humidity change value is the difference between the current humidity and the initial humidity;

[0026] The step S120 includes:

[0027] Different current stool-related gas concentration thresholds are set according to different current humidity change values. The larger the current humidity change value is, the smaller the current stool-related gas concentration threshold is.

[0028] In an optional embodiment of the present application, the urine detection sensor includes an electrode pair, and the current urine-related data includes current impedance;

[0029] The step S110 includes:

[0030] During the defecation detection process, the current impedance of the diaper is detected by the urine detection sensor;

[0031] The step S120 includes:

[0032] Different current stool-related gas concentration thresholds are set according to different current impedances. The larger the current impedance is, the larger the current stool-related gas concentration threshold is.

[0033] In an optional embodiment of the present application, the urine detection sensor includes an electrode pair, and the current urine-related data includes a current impedance change value;

[0034] The method further comprises:

[0035] Before performing a stool test, the urine detection sensor is used to detect the initial impedance of the diaper;

[0036] The step S110 includes:

[0037] During the defecation detection process, the current impedance of the diaper is detected by the urine detection sensor, and the current impedance change value is calculated, where the current impedance change value is the difference between the current impedance and the initial impedance;

[0038] The step S120 includes:

[0039] Different current stool-related gas concentration thresholds are set according to different current impedance change values. The larger the current humidity change value is, the smaller the current stool-related gas concentration threshold is.

[0040] In an optional embodiment of the present application, the current urine-related data includes a current urine test result;

[0041] The step S110 specifically includes:

[0042] During the stool detection process, the urine detection sensor detects and determines to obtain the current urine detection result;

[0043] The step S120 specifically includes:

[0044] If the current urine detection result is that there is no urine, the preset first threshold is set as the current stool-related gas concentration threshold;

[0045] If the current urine detection result is that urine is present, the preset second threshold is set as the current stool-related gas concentration threshold;

[0046] The first threshold is greater than the second threshold.

[0047] In an optional embodiment of the present application, step S120 includes:

[0048] Substituting the current urination-related data into a preset fitting relationship XR between the current urination-related data and the current feces-related gas concentration threshold for calculation, and setting the calculation result as the current feces-related gas concentration threshold;

[0049] The preset fitting relationship XR between the current urine-related data and the current feces-related gas concentration threshold is obtained by fitting a plurality of different urine-related data obtained by experiments and a plurality of corresponding feces-related gas concentration thresholds.

[0050] In an optional embodiment of the present application, step S120 includes:

[0051] If the value of the current urine-related data is within a preset first range, the preset first threshold is set as the current stool-related gas concentration threshold;

[0052] If the value of the current urine-related data is within a preset second range, the preset second threshold is set as the current defecation-related gas concentration threshold.

[0053] In an optional embodiment of the present application, the current stool-related gas concentration data includes current gas concentration;

[0054] The step S110 includes:

[0055] During the stool detection process, the stool detection sensor detects the current gas concentration St of the diaper.

[0056] The step S130 includes:

[0057] It is determined whether the current gas concentration exceeds the current stool-related gas concentration threshold value. If so, it is determined that stool exists in the diaper; otherwise, it is determined that stool does not exist in the diaper.

[0058] In an optional embodiment of the present application, the current stool-related gas concentration data Y includes a current gas concentration change value;

[0059] The method further comprises:

[0060] Before performing a stool test, the stool detection sensor is used to detect the initial gas concentration of the diaper;

[0061] The step S110 includes:

[0062] During the stool detection process, the stool detection sensor is used to detect the current gas concentration of the diaper;

[0063] The current gas concentration change value is calculated, where the current gas concentration change value is the difference between the current gas concentration and the initial gas concentration.

[0064] The step S130 includes:

[0065] It is determined whether the current gas concentration change value exceeds the current stool-related gas concentration threshold value. If so, it is determined that there is stool in the diaper; otherwise, it is determined that there is no stool in the diaper.

[0066] In an optional embodiment of the present application, the current stool-related gas concentration data includes a current gas concentration change rate;

[0067] The step S110 includes:

[0068] During the stool detection process, the stool detection sensor performs gas concentration detection at set time intervals to obtain a first gas concentration and a second gas concentration;

[0069] Calculating the current gas concentration change rate, wherein the current gas concentration change rate=(second gas concentration-first gas concentration) / set time interval;

[0070] The step S130 includes:

[0071] It is determined whether the current gas concentration change rate K exceeds the current stool-related gas concentration threshold R. If so, it is determined that there is stool in the diaper; otherwise, it is determined that there is no stool in the diaper.

[0072] In an optional embodiment of the present application, the detection device includes an alarm unit;

[0073] The step S130 further includes:

[0074] If it is determined that there is feces in the diaper, the alarm unit is controlled to sound an alarm.

[0075] In an optional embodiment of the present application, the diaper includes an absorption portion and a fixing portion, the absorption portion includes a water-absorbing material, and the fixing portion is used to fix the absorption portion at the excretion position of the diaper user;

[0076] The diaper is provided with a detection device, which includes a stool detection sensor and a urine detection sensor:

[0077] The method comprises:

[0078] S210: Detecting current stool-related gas concentration data of the diaper by the stool detection sensor;

[0079] S220: Determine the magnitude relationship between the current stool-related gas concentration data and a preset first threshold and a second threshold; wherein the second threshold is smaller than the first threshold;

[0080] S230: If the current stool-related gas concentration data is greater than a first threshold, it is determined that there is stool in the diaper;

[0081] S240: If the current stool-related gas concentration data is not greater than the first threshold value and greater than the second threshold value, the urine detection sensor is used to detect whether there is urine in the diaper. If so, it is determined that there is stool in the diaper.

[0082] Beneficial effects:

[0083] In one embodiment of the present application, before determining whether there is feces, a urine detection sensor is used to determine whether there is urine in the diaper or the amount of urine in the diaper, and then the current feces-related gas concentration threshold is set according to the detection result of the urine detection sensor, that is, according to the corresponding relationship between the current urine-related data and the preset current urine-related data and the current feces-related gas concentration threshold, and then the current feces-related gas concentration threshold is compared with the current feces-related gas concentration data detected by the feces detection sensor, and the comparison result of the two is used to determine whether there is feces in the diaper. Compared with the prior art that determines whether there is feces in the diaper based on a fixed judgment standard, this embodiment can improve the success rate of feces detection when there is urine in the diaper.

[0084] Another embodiment of the present application, during the process of detecting defecation, determines whether there is defecation based on the relationship between the current defecation-related gas concentration data and the first threshold and the second threshold, or further detects the urination to determine whether there is defecation. If the result of the defecation detection sensor exceeds the second threshold but does not reach the first threshold, it can be determined that it may be caused by the presence of urine in the diaper. At this time, the urination detection sensor is used to detect whether there is urine in the diaper. If there is urine, it means that the urination has caused the diaper's gas transmission function to deteriorate. If it is confirmed that the defecation detection result exceeds the first threshold, it is not necessary to perform urine detection through the urine sensor. From the process point of view, the execution steps are saved; from the operation logic point of view, the action of the urine detection sensor to perform detection can be saved, which saves power and is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0085] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0086] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0087] Figure 1 The present invention is a structural schematic diagram of a defecation and urine detection device in the prior art.

[0088] Figure 2 The present invention is a schematic structural diagram of a diaper wetness detection device in the prior art.

[0089] Figure 3 The figure is a schematic diagram of the structure of an excrement detection system in the prior art.

[0090] Figure 4 This is a schematic diagram of the structure of the diaper provided in an embodiment of the present application.

[0091] Figure 5 A first circuit diagram of the detection device provided in an embodiment of the present application.

[0092] Figure 6 A second circuit diagram of the detection device provided in an embodiment of the present application.

[0093] Figure 7 A first flow chart of a method for improving the success rate of stool detection when urine is present in a diaper provided in an embodiment of the present application.

[0094] Figure 8 A second flow chart of a method for improving the success rate of stool detection when urine is present in a diaper provided in an embodiment of the present application.

[0095] Fig. 9 A third flow chart of a detection method for improving the success rate of stool detection when urine is present in a diaper provided in an embodiment of the present application.

[0096] Fig.10 A curve diagram showing the corresponding relationship between the current urine-related data X and the stool-related gas concentration threshold R provided in an embodiment of the present application.

[0097] Fig.11 A curve diagram showing the corresponding relationship between the current urine-related data X and the stool-related gas concentration threshold R provided in an embodiment of the present application.

[0098] Fig.12 This is a corresponding relationship diagram between the current urine-related data X and the stool-related gas concentration threshold R provided in an embodiment of the present application.

[0099] Fig.13 A fourth flow chart of a method for improving the success rate of stool detection when urine is present in a diaper provided in an embodiment of the present application.

[0100] Fig.14 A graph showing the change in current gas concentration change value ΔS over time provided in an embodiment of the present application.

[0101] Fig.15 A graph showing the current gas concentration change rate K versus time provided in an embodiment of the present application.

[0102] in,

[0103] 10. Diaper; 11. Absorbent part; 111. First part; 112. Second part; 113. Third part; 11e. Inner surface; 11f. Outer surface; 12. Fixing part; 121. First fixing part; 122. Second fixing part; 123. Fixing belt;

[0104] 20. Detection device; 21. Defecation detection sensor; 22. Urine detection sensor; 23. First processor; 24. First communication module; 25. Alarm unit;

[0105] 30. terminal device; 33. second processor; 34. second communication module;

[0106] P1, first containing bag; P2, second containing bag; P3, third containing bag; P4, fourth containing bag. DETAILED DESCRIPTION

[0107] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. All other embodiments obtained by those skilled in the art without creative work based on the embodiments in the present application belong to the scope of protection of the present application.

[0108] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0109] After in-depth research by the inventor, it was found that in the prior art, the criteria for judging whether there is feces in the diaper are fixed, and there is no criterion for judging whether there is feces based on whether there is urine in the diaper. However, when there is urine in the diaper, the absorbent material in the diaper will swell and thicken after absorbing urine, which will hinder the volatile gas in the feces from diffusing to the outside of the diaper. The more urine the absorbent material in the diaper absorbs, the greater the obstacle to the diffusion of volatile gas in the feces to the outside of the diaper. However, the gas sensors in the prior art are all arranged on the outside of the diaper, which results in the gas concentration value actually detected by the gas sensor being low, thereby reducing the success rate of the sensor in detecting feces, and it is easy to miss the detection, that is, there is actually feces in the diaper, but the feces-related gas concentration detected by the detection device does not reach the set threshold value, and it is determined that there is no feces in the diaper.

[0110] In order to solve this technical problem, an embodiment of the present application provides a method for improving the success rate of stool detection when urine is present, so as to improve the success rate of stool detection when urine is present in a diaper.

[0111] like Figure 4 and Figure 5 As shown, the diaper 10 includes an absorption portion 11 and a fixing portion 12. The absorption portion 11 includes a water-absorbing material. The fixing portion 12 is used to fix the absorption portion 11 to the excretion port of the diaper user. The diaper 10 is equipped with a detection device 20, which includes a stool detection sensor 21 and a urine detection sensor 22. In one embodiment, the detection device 20 is detachably mounted on the diaper 10. In another embodiment, the detection device 20 is non-detachably mounted on the diaper 10.

[0112] like Figure 4 As shown, the diaper 10 has an inner surface 11e and an outer surface 11f. When the diaper 10 is placed on a human body, the inner surface 11e of the diaper 10 faces the excretion opening of the human body. The detection device 20 can be disposed on the outer surface 11f of the diaper 10.

[0113] Exemplarily, one or more receiving pockets are provided on the outer surface 11f of the diaper 10, and each receiving pocket has a receiving space for receiving the detection device 20. Figure 2 The diaper 10 in the figure shows a first receiving bag P1, a second receiving bag P2, a third receiving bag P3 and a fourth receiving bag P4. It should be noted that the number and positions of the receiving bags of the diaper 10 of the present application are not limited.

[0114] The absorbent portion 11 includes a first portion 111, a second portion 112, and a third portion 113 connected end to end in sequence; when the diaper 10 is used by a human body, the first portion 111 covers the lower abdomen of the human body, the second portion 112 covers the crotch of the human body, and the third portion 113 covers the buttocks of the human body. Exemplarily, the receiving bag is disposed in the first portion 111. Further, the receiving bag is disposed in the first portion 111 and is close to the second portion 112.

[0115] The fixing part 12 includes at least one first fixing part 121, at least one second fixing part 122 and a fixing belt 123. The first fixing part 121 and the second fixing part 122 are respectively fixed to the two ends of the absorbent part 11. The fixing belt 123 is used to fix the first fixing part 121 and the second fixing part 122, so that the first fixing part 121 and the second fixing part 122 together form a ring structure around the waist and abdomen of the diaper user, so as to stably fix the absorbent part 11 on the lower abdomen, crotch and buttocks of the diaper user. As a result, the absorbent part 11 forms a curved structure, and a receiving space is formed inside thereof. When the diaper user discharges urine, the urine is absorbed by the absorbent part 11, and when the diaper user discharges feces, the feces are contained in the receiving space. Specifically, the first fixing part 121 and the second fixing part 122 can be made of elastic material to improve the comfort of the diaper user; the fixing belt 123 can be Velcro to improve the convenience of wearing and changing diapers.

[0116] In one embodiment, the detection device 20 may be one or more, and one detection device 20 is placed in one storage bag. In another embodiment, a part of the detection device 20 is placed in one storage bag, and another part of the detection device 20 is placed in another storage bag. The present application does not limit the number of detection devices 20, and whether the detection device 20 is placed as a whole in one storage bag of the diaper 10, or is placed separately in different storage bags of the diaper 10.

[0117] like Figure 5 As shown, the detection device 20 further includes a first processor 23 , and the first processor 23 is electrically connected to the urine detection sensor 22 and the stool detection sensor 21 .

[0118] like Figure 7 As shown, the detection method for improving the success rate of stool detection when urine is present in the diaper 10 includes the following steps:

[0119] S110 : obtaining current urine-related data X through the urine detection sensor 22 and obtaining current stool-related gas concentration data Y through the stool detection sensor 21 .

[0120] S120: Setting different current defecation-related gas concentration thresholds R according to different current urination-related data X.

[0121] S130: Determine whether the current stool-related gas concentration data Y exceeds the current stool-related gas concentration threshold R. If so, determine that stool exists in the diaper 10.

[0122] S140: Repeat the above steps S110-S130. That is, the above steps S110, S120 and S130 are cyclically performed during the stool detection process to detect whether there is stool in the diaper 10 in real time.

[0123] Among them, the current urine-related data X is data that can reflect the urine content in the current diaper 10, and the current stool-related data Y is data that can reflect whether there is stool in the current diaper 10. The more urine is absorbed in the current diaper 10, the smaller the current stool-related gas concentration threshold R should be, so as to reduce the influence of urine absorbed in the diaper 10 on stool detection. Before judging whether there is stool, the present embodiment first determines whether there is urine in the diaper 10 or the amount of urine in the diaper 10 through the urine detection sensor 22, and then sets different current stool-related gas concentration thresholds R according to the detection result of the urine detection sensor 22, that is, the current urine-related data X, and then compares the current stool-related gas concentration threshold R with the current stool-related gas concentration data Y detected by the stool detection sensor 21, and judges whether there is stool in the diaper 10 based on the comparison result of the two. Compared with the prior art which determines whether there is feces in the diaper based on a fixed judgment standard, this embodiment takes into account the impact of urine in the diaper on feces detection, and can improve the success rate of feces detection when there is urine in the diaper 10.

[0124] An embodiment, such as Figure 5 As shown, the detection device 20 also includes a first processor 23 electrically connected to the urination detection sensor 22 and the feces detection sensor 21. The first processor 23 can obtain current urination-related data X through the urination detection sensor 22, obtain current feces-related gas concentration data Y through the feces detection sensor 21, and set different current feces-related gas concentration thresholds R according to different current urination-related data X, and determine whether there is feces in the diaper according to whether the current feces-related gas concentration data Y exceeds the current feces-related gas concentration threshold R.

[0125] Another embodiment, such as Figure 6As shown, the detection device 20 is communicatively connected to a terminal device 30. Specifically, the detection device 20 also includes a first communication module 24 electrically connected to the first processor 23. The terminal device 30 includes a second processor 33 and a third communication module 34 electrically connected to the second processor 33. The first communication module 24 of the detection device 20 is communicatively connected to the second communication module 34 of the terminal device 30. The first processor 23 can transmit the acquired current urination-related data X and current feces-related gas concentration data Y to the second processor 33 of the terminal device 30. The second processor 33 of the terminal device 30 can set different current feces-related gas concentration thresholds R according to different current urination-related data X, and judge whether there is feces in the diaper according to whether the current feces-related gas concentration data Y exceeds the current feces-related gas concentration threshold R.

[0126] Among them, the current urination related data X includes but is not limited to: ① current humidity Ht; ② current humidity change value ΔH; ③ current impedance value Zt; ④ current impedance change value ΔZ; ⑤ current urination detection result (yes / no). The following is an illustrative explanation of several situations of urination related data X.

[0127] In a first optional embodiment, the urine detection sensor 22 includes a humidity sensor, and the current urine related data X includes the current humidity Ht.

[0128] When urine is absorbed in the diaper 10, the water in the urine will evaporate into the environment outside the diaper, increasing the environmental humidity of the external surface of the diaper 10. The more urine absorbed in the diaper 10, the more water it can evaporate, and the higher the environmental humidity of the external surface of the diaper 10. Therefore, a humidity sensor can be set on the outer surface 11f of the diaper 10, and the humidity of the environment around the diaper 10 can be detected by the humidity sensor to obtain the urine content in the diaper 10. Therefore, in this embodiment, the current urine-related data X is the current humidity Ht detected by the humidity sensor. The humidity sensor can be a resistive humidity sensor, a capacitive humidity sensor, or other types of humidity sensors.

[0129] Therefore, in the detection method of this embodiment:

[0130] Step S110 includes: during the stool detection process, the urine detection sensor 22 detects the current humidity Ht of the diaper 10. It is understandable that the stool detection process may be the process in which the stool detection sensor 21 of the detection device 20 detects the current stool-related gas concentration data Y after the detection device 20 is turned on.

[0131] Step S120 includes: setting different current stool-related gas concentration thresholds R according to different current humidity Ht, and the current stool-related gas concentration thresholds R are smaller when the current humidity Ht is higher.

[0132] In a second optional embodiment, the urine detection sensor 22 includes a humidity sensor, and the current urine-related data X includes a current humidity change value ΔH.

[0133] Ambient humidity and human body humidity will have an adverse effect on the humidity detection of the humidity sensor. This is because in addition to the water vapor generated by the urine absorbed in the diaper 10, the water vapor in the air and the water vapor generated by the human body will also enter the humidity sensor and be detected by the humidity sensor, resulting in a high detection value of the humidity sensor. If the current stool-related gas concentration threshold R is directly obtained based on the current humidity Ht, the current stool-related gas concentration threshold R will be further low, which will ultimately affect the accuracy of stool detection, especially in humid weather.

[0134] In order to reduce the impact of environmental humidity and human body humidity on stool detection, Figure 8 As shown, the detection method of this embodiment also includes step S101: before performing the defecation detection, the initial humidity H0 of the diaper 10 is detected by the urine detection sensor 22. The initial humidity H0 is the humidity detected by the humidity sensor only under the influence of the ambient humidity and the human body humidity when there is no urine in the diaper 10. It can be understood that before the defecation detection, it can be when the detection device 20 is just set on the diaper 10 or when the detection device 20 is just turned on, or when there is no urine in the diaper 10 and the humidity is low.

[0135] Step S110 includes step S111: during the defecation detection process, the current humidity Ht of the diaper 10 is detected by the urine detection sensor 22, and the current humidity change value ΔH is calculated. The current humidity change value ΔH is the difference between the current humidity Ht and the initial humidity H0. That is, the current humidity change value ΔH = the current humidity Ht. t - Initial humidity H0. The current humidity change value ΔH is the change in the current humidity Ht relative to the humidity when there is no urine in the diaper 10. The larger the current humidity change value ΔH is, the more urine is absorbed in the diaper 10.

[0136] Step S120 includes step S121: setting different current stool-related gas concentration thresholds R according to different current humidity change values ​​ΔH, and the larger the current humidity change value ΔH is, the smaller the current stool-related gas concentration threshold R is. Since the larger the current humidity change value ΔH is, the more urine is absorbed in the diaper 10, and the more urine is absorbed in the diaper 10, the greater the obstruction of the gas generated by the stool when it propagates to the outside of the diaper 10 by the water-absorbing material in the diaper 10 that absorbs urine is greater, so the larger the current humidity change value ΔH is, the smaller the current stool-related gas concentration threshold R is.

[0137] Therefore, in this embodiment, the current stool-related gas concentration threshold R is obtained according to the current humidity change value ΔH. Since the current humidity change value ΔH can more accurately reflect the content of urine absorbed in the diaper 10, the stool-related gas concentration threshold R is more accurate, thereby making the judgment of whether there is stool in the diaper 10 more accurate.

[0138] In a third optional embodiment, the urine detection sensor 22 includes an electrode pair, and the current urine-related data X includes the current impedance Zt. The electrode pair may be disposed on the outer surface 11f of the diaper 10 or inside the water-absorbing material.

[0139] Step S110 includes: during the defecation detection process, detecting the current impedance Zt of the diaper 10 by the urine detection sensor 22 .

[0140] Step S120 includes: setting different current stool-related gas concentration thresholds R according to different current impedances Zt, and the current stool-related gas concentration thresholds R are larger when the current impedance Zt is larger.

[0141] The impedance Zt of the electrode pair is related to the humidity of the environment in which it is located. Since the electrolytes contained in urine have a certain conductivity, the higher the humidity, the easier it is for the two electrodes of the electrode pair to conduct electricity, so the impedance is lower; and the humidity of the environment in which the electrode pair is located is related to the urine content in the diaper. The more urine there is in the diaper, the greater the humidity of the environment in which the electrode pair is located; therefore, the more urine is absorbed in the diaper 10, the smaller the impedance Zt of the electrode pair, and the less urine is absorbed in the diaper 10, the greater the impedance of the electrode pair.

[0142] In a fourth optional embodiment, the urine detection sensor 22 includes an electrode pair, and the current urine-related data X includes a current impedance change value ΔZ. The electrode pair may be disposed on the outer surface 11f of the diaper 10 or inside the water-absorbing material.

[0143] like Fig. 9 As shown, the method further includes step S102: before performing the defecation detection, detecting the initial impedance Z0 of the diaper 10 by the urine detection sensor 22 .

[0144] Step S110 includes step S112: during the defecation detection process, the current impedance Zt of the diaper 10 is detected by the urine detection sensor 22, and the current impedance change value ΔZ is calculated, and the current impedance change value ΔZ is the difference between the current impedance Zt and the initial impedance Z0. That is, the current impedance change value ΔZ = initial impedance Z0-current impedance Zt. The current impedance change value ΔZ is the change in the current impedance Zt relative to the impedance when there is no urine in the diaper 10. The smaller the current impedance change value ΔZ, the more urine is absorbed in the diaper 10.

[0145] Step S120 includes step S122: setting different current stool-related gas concentration thresholds R according to different current impedance change values ​​ΔZ, and the larger the current humidity change value ΔZ, the smaller the current stool-related gas concentration threshold R. Compared with the third optional embodiment, this embodiment can reduce the influence of environmental humidity and human body humidity on the accuracy of stool detection.

[0146] In a fifth optional embodiment, the current urination related data X includes the current urination detection result.

[0147] During the use of diapers, the needs of stool detection and urine detection exist simultaneously, and a urine detection sensor 22 has been provided in the present application, so in the present embodiment, the urine detection sensor 22 can also be used to detect and determine whether there is urine in the diaper 10. A variety of urine detection and judgment methods have been disclosed in the prior art, such as the urine detection and judgment methods disclosed in the three patent applications listed in the background technology, and those skilled in the art can choose according to actual needs, which will not be repeated here. The urine detection result can also reflect the urine content in the diaper 10, so in the process of stool detection, the current stool-related gas concentration threshold R can also be set by using the current urine detection result and the preset correspondence between the current urine-related data and the current stool-related gas concentration threshold.

[0148] In this embodiment:

[0149] Step S110 specifically includes: in the process of stool detection, detecting and determining the current urine detection result through the urine detection sensor 22 .

[0150] Step S120 specifically includes: if the current urine detection result is that there is no urine, then the preset first threshold is set to the current stool-related gas concentration threshold R; if the current urine detection result is that there is urine, then the preset second threshold is set to the current stool-related gas concentration threshold R; wherein the first threshold is greater than the second threshold.

[0151] There are many different specific implementations for setting different current defecation-related gas concentration thresholds R according to different current urination-related data X, which are exemplarily described below.

[0152] In a first optional embodiment, if Fig.10As shown, step S120 includes: substituting the current urine-related data X into the preset fitting relationship formula XR between the current urine-related data and the current stool-related gas concentration threshold for calculation, and setting the calculation result as the current stool-related gas concentration threshold R. The preset fitting relationship formula XR between the current urine-related data and the current stool-related gas concentration threshold is obtained by fitting a plurality of different urine-related data X obtained by experiments and a plurality of corresponding stool-related gas concentration thresholds R.

[0153] Among them, the preset fitting relationship XR between the current urine-related data and the current stool-related gas concentration threshold can be obtained through experiments. For example, when the diaper 10 contains stool, urine of different contents is input into the diaper 10 respectively, and the current urine-related data X and the corresponding current stool-related gas concentration data Y when the diaper 10 absorbs urine of different contents are tested by experiments, and the corresponding current stool-related gas concentration threshold R is set according to each current stool-related gas concentration data Y. The current stool-related gas concentration threshold R cannot be set too high, otherwise it is easy to miss the test, that is, there is actually stool in the diaper 10, but the test result is that there is no stool; the current stool-related gas concentration threshold R cannot be set too low, otherwise it is easy to cause misdetection, that is, there is actually no stool in the diaper 10, but the test result is that there is stool. Each current stool-related gas concentration threshold R can be determined by experiment to minimize the misdetection rate and the missed detection rate. By fitting each gas concentration threshold R with the corresponding current urine-related data X, the preset fitting relationship XR between the current urine-related data and the current stool-related gas concentration threshold can be obtained. It can be understood that the preset fitting relationship XR between the current urine-related data and the current stool-related gas concentration threshold is a mathematical calculation formula.

[0154] For example, Fig.10 As shown, multiple current urine-related data X and corresponding stool-related gas concentration thresholds R are obtained through experiments, and then a two-dimensional coordinate system is constructed with the urine-related data X as the horizontal axis and the stool-related gas concentration threshold R as the vertical axis, and the values ​​of the multiple current urine-related data X and the corresponding values ​​of the multiple stool-related gas concentration thresholds R are plotted in the two-dimensional coordinate system to form an XR fitting curve.

[0155] In a second optional embodiment, if Fig.11As shown, step S20 includes: if the value of the current urine-related data X is within the preset first range A1, the preset first threshold R1 is set as the current stool-related gas concentration threshold R; if the value of the current urine-related data X is within the preset second range A2, the preset second threshold R2 is set as the current stool-related gas concentration threshold R. Similarly, if the value of the current urine-related data X is within the preset third range A3, the preset third threshold R3 is set as the current stool-related gas concentration threshold R; if the value of the current urine-related data X is within the preset fourth range A4, the preset fourth threshold R4 is set as the current stool-related gas concentration threshold R. It should be noted that a preset range corresponds to a preset threshold, and the preset range and the number of preset thresholds corresponding thereto can be set to two, three, four or an integer greater than four according to requirements, and this application is no longer limited here.

[0156] The above preset thresholds can be obtained through experiments. For example, the urine-related data X can be divided into 4 ranges A1 to A4, and simulated urine of different concentrations can be delivered into the diaper to make the urine-related data X reach the corresponding range, and the appropriate thresholds R1 to R4 in each range can be obtained by testing respectively.

[0157] Compared with the first optional embodiment, this embodiment can determine the corresponding current stool-related gas concentration threshold R according to the range of the current urine-related data X, without the need for complex fitting calculations.

[0158] The current stool-related gas concentration data Y include but are not limited to: ① current gas concentration St; ② current gas concentration change value ΔS; ③ current gas concentration change rate K. Several situations of the current stool-related gas concentration data Y are exemplified below.

[0159] In a first optional embodiment, the stool detection sensor 21 includes a gas sensor, such as a VOC sensor, a hydrogen sulfide sensor, or the like, which is capable of detecting volatile gases produced by stool, and the current stool-related gas concentration data Y includes the current gas concentration St.

[0160] Step S110 includes: during the defecation detection process, detecting the current gas concentration St of the diaper 10 by the defecation detection sensor 21 .

[0161] Step S130 includes: determining whether the current gas concentration St exceeds the current stool-related gas concentration threshold R, and if so, determining that stool exists in the diaper 10 , otherwise determining that stool does not exist in the diaper 10 .

[0162] In a second optional embodiment, the stool detection sensor 21 includes a gas sensor, and the current stool-related gas concentration data Y includes a current gas concentration change value ΔS.

[0163] like Fig.12 and Fig.13 As shown, the method further includes step S103. Step S103: before performing the stool detection, the initial gas concentration S0 of the diaper 10 is detected by the stool detection sensor 21.

[0164] Step S110 includes step S113: during the stool detection process, the current gas concentration St of the diaper 10 is detected by the stool detection sensor 21; the current gas concentration change value ΔS is calculated, and the current gas concentration change value ΔS is the difference between the current gas concentration St and the initial gas concentration S0. That is, the current gas concentration change value ΔS = current gas concentration St-initial gas concentration S0. Before the stool detection begins, there is no stool on the diaper 10, so the initial gas concentration S0 detected by the gas sensor is the concentration of the environment or human body surface related gases; when the stool detection is currently being performed, if the diaper user has stool, it will cause the detection value of the gas sensor to increase, so the current gas concentration change value ΔS can reflect whether there is stool in the diaper 10.

[0165] Step S130 includes: determining whether the current gas concentration change value ΔS exceeds the current stool-related gas concentration threshold R, and if so, determining that there is stool in the diaper 10 , otherwise determining that there is no stool in the diaper 10 .

[0166] A third optional embodiment, such as Fig.14 As shown, the stool detection sensor 21 includes a gas sensor, and the current stool-related gas concentration data Y includes the current gas concentration change rate K.

[0167] Step S110 includes: during the stool detection process, gas concentration detection is performed at a set time interval Δt by the stool detection sensor 21 to obtain a first gas concentration S1 and a second gas concentration S2; and the current gas concentration change rate K is calculated, and the current gas concentration change rate K = (second gas concentration S2-first gas concentration S1) / set time interval Δt.

[0168] Step S130 includes: determining whether the current gas concentration change rate K exceeds the current stool-related gas concentration threshold R, and if so, determining that there is stool in the diaper 10 , otherwise determining that there is no stool in the diaper 10 .

[0169] It should be noted that, during the process of detecting defecation, the detection device 20 can also first detect the current defecation-related gas concentration data Y of the diaper 10 through the defecation detection sensor 21, and compare the current defecation-related gas concentration data Y with the preset data, and then determine whether there is defecation based on the comparison result, and whether it is necessary to further detect whether there is urine in the diaper 10 through the urine detection sensor 22 in order to further determine whether there is defecation in the diaper 10.

[0170] Specifically, Fig.15 As shown, the method comprises the following steps:

[0171] S210: Detecting current stool-related gas concentration data Y of the diaper 10 through the stool detection sensor 21;

[0172] S220: Determine the magnitude relationship between the current stool-related gas concentration data Y and a preset first threshold value X1 and a second threshold value X2; wherein the second threshold value X2 is smaller than the first threshold value X1;

[0173] S230: If the current stool-related gas concentration data Y is greater than the first threshold value X1, it is determined that there is stool in the diaper 10;

[0174] S240: If the current stool-related gas concentration data Y is not greater than the first threshold value X1 and greater than the second threshold value X2, the urine detection sensor 22 is used to detect whether there is urine in the diaper 10. If so, it is determined that there is stool in the diaper 10.

[0175] Compared with the above embodiments, this embodiment determines whether there is feces or further detects urination to determine whether there is feces based on the relationship between the current feces-related gas concentration data Y and the first threshold value X1 and the second threshold value X2. If it is confirmed that the feces detection result exceeds the first threshold value X1, whether there is urination or not, it can be determined that there is feces in the diaper, so there is no need to perform urine detection through the urine detection sensor 22. From the perspective of the process, the execution steps are saved; from the perspective of the operating logic, the action of the urine detection sensor 22 for detection can be saved, which saves power and is more efficient.

[0176] If the result detected by the stool detection sensor 21 is not greater than the first threshold value but greater than the second threshold value, that is, the stool-related gas concentration data Y is between the first threshold value and the second threshold value, it indicates that there may be both stool and urine in the diaper. Since the diaper that absorbs urine hinders the outward propagation of the gas generated by the stool, the stool-related gas concentration data Y detected by the stool detection sensor 21 is low. It is also possible that there is indeed no stool. Therefore, further detection is required through the urine detection sensor 22 to determine whether there is stool in the diaper. If the urine detection sensor 22 detects urine, it is determined that there is stool in the diaper; if the urine detection sensor 22 does not detect urine, it is determined that there is no stool in the diaper.

[0177] The defecation detection sensor 21 and the urine detection sensor 22 of this embodiment can refer to the above content, which will not be repeated here. The current defecation-related gas concentration data Y of this embodiment can refer to the above content, which will not be repeated here.

[0178] For example, Figure 5 As shown, the detection device 20 further includes an alarm unit 25, and the alarm unit 25 can be disposed in the detection device 20. In other optional embodiments, the alarm unit 25 can also be disposed separately from the processor 23, the stool detection sensor 21, and the urine detection sensor 22 of the detection device 20. Specifically, the processor 23, the stool detection sensor 21, and the urine detection sensor 22 of the detection device 20 are disposed on the diaper 10, while the alarm unit 25 is not disposed on the diaper 10.

[0179] Wherein, step S130 further includes: if it is determined that there is feces in the diaper 10, controlling the alarm unit 25 to sound an alarm. The alarm unit 25 may sound an alarm in a manner including but not limited to: sounding an alarm, sounding a text alarm, or sounding a light alarm such as a flashing alarm.

[0180] The above is a detailed introduction to the detection method for improving the success rate of stool detection when urine is present in diapers provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for technical personnel in this field, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A method for improving the success rate of stool detection when urine is present in a diaper, characterized in that: The diaper (10) comprises an absorption part (11) and a fixing part (12), wherein the absorption part (11) comprises a water-absorbing material, and the fixing part (12) is used to fix the absorption part (11) at the excretion opening of the diaper user; The diaper (10) is provided with a detection device (20), and the detection device (20) comprises a stool detection sensor (21) and a urine detection sensor (22): The method comprises: S110: obtaining current urine-related data X through the urine detection sensor (22) and obtaining current stool-related gas concentration data Y through the stool detection sensor (21); S120: setting different current defecation-related gas concentration thresholds R according to different current urination-related data X; S130: determining whether the current stool-related gas concentration data Y exceeds the current stool-related gas concentration threshold R, and if so, determining that stool exists in the diaper (10); S140: Repeat the above steps S110-S130.

2. The method for improving the success rate of stool detection when urine is present in a diaper according to claim 1, characterized in that: The urine detection sensor (22) includes a humidity sensor, and the current urine-related data X includes the current humidity Ht; The step S110 includes: During the defecation detection process, the current humidity Ht of the diaper (10) is detected by the urine detection sensor (22); The step S120 includes: Different current stool-related gas concentration thresholds R are set according to different current humidity Ht. When the current humidity Ht is higher, the current stool-related gas concentration threshold R is lower.

3. The method for improving the success rate of stool detection when urine is present in a diaper according to claim 1, characterized in that: The urine detection sensor (22) comprises a humidity sensor, and the current urine-related data X comprises a current humidity change value ΔH; The method further comprises: Before performing a stool test, the urine detection sensor (22) is used to detect the initial humidity H0 of the diaper (10); The step S110 includes: During the defecation detection process, the current humidity Ht of the diaper (10) is detected by the urine detection sensor (22), and the current humidity change value ΔH is calculated, wherein the current humidity change value ΔH is the difference between the current humidity Ht and the initial humidity H0; The step S120 includes: Different current defecation-related gas concentration thresholds R are set according to different current humidity change values ​​ΔH. The larger the current humidity change value ΔH is, the smaller the current defecation-related gas concentration threshold R is.

4. The method for improving the success rate of stool detection when urine is present in a diaper according to claim 1, characterized in that: The urine detection sensor (22) comprises an electrode pair, and the current urine-related data X comprises a current impedance Zt; The step S110 includes: During the defecation detection process, the current impedance Zt of the diaper (10) is detected by the urine detection sensor (22); The step S120 includes: Different current stool-related gas concentration thresholds R are set according to different current impedances Zt. The larger the current impedance Zt is, the larger the current stool-related gas concentration threshold R is.

5. The method for improving the success rate of stool detection when urine is present in a diaper according to claim 1, characterized in that: The urine detection sensor (22) comprises an electrode pair, and the current urine-related data X comprises a current impedance change value ΔZ; The method further comprises: Before performing a stool test, the urine detection sensor (22) detects the initial impedance Z0 of the diaper (10); The step S110 includes: During the defecation detection process, the current impedance Zt of the diaper (10) is detected by the urine detection sensor (22), and the current impedance change value ΔZ is calculated, wherein the current impedance change value ΔZ is the difference between the current impedance Zt and the initial impedance Z0; The step S120 includes: Different current stool-related gas concentration thresholds R are set according to different current impedance change values ​​ΔZ. The larger the current humidity change value ΔZ is, the smaller the current stool-related gas concentration threshold R is.

6. The method for improving the success rate of stool detection when urine is present in a diaper according to claim 1, characterized in that: The current urine-related data X includes the current urine detection result; The step S110 specifically includes: During the stool detection process, the urine detection sensor (22) detects and determines the current urine detection result; The step S120 specifically includes: If the current urine detection result is that there is no urine, the preset first threshold is set as the current stool-related gas concentration threshold R; If the current urine detection result is that urine is present, the preset second threshold is set as the current stool-related gas concentration threshold R; The first threshold is greater than the second threshold.

7. The method for improving the success rate of stool detection when urine is present in a diaper according to claim 1, characterized in that: The step S120 includes: Substituting the current urine-related data X into a preset fitting relationship XR between the current urine-related data and the current stool-related gas concentration threshold value for calculation, and setting the calculation result as the current stool-related gas concentration threshold value R; The preset fitting relationship XR between the current urine-related data and the current feces-related gas concentration threshold is obtained by fitting a plurality of different urine-related data X and a plurality of corresponding feces-related gas concentration thresholds R obtained by experiments.

8. The method for improving the success rate of stool detection when urine is present in a diaper according to claim 1, characterized in that: The step S120 includes: If the value of the current urine-related data X is within the preset first range A1, the preset first threshold R1 is set as the current stool-related gas concentration threshold R; If the value of the current urine-related data X is within the preset second range A2, the preset second threshold R2 is set as the current defecation-related gas concentration threshold R.

9. The method for improving the success rate of stool detection when urine is present in a diaper according to any one of claims 1 to 8, characterized in that: The current stool-related gas concentration data Y includes the current gas concentration St; The step S110 includes: During the stool detection process, the stool detection sensor (21) detects the current gas concentration St of the diaper (10); The step S130 includes: It is determined whether the current gas concentration St exceeds the current stool-related gas concentration threshold R. If so, it is determined that stool exists in the diaper (10); otherwise, it is determined that stool does not exist in the diaper (10).

10. The method for improving the success rate of stool detection when urine is present in a diaper according to any one of claims 1 to 8, characterized in that: The current stool-related gas concentration data Y includes a current gas concentration change value ΔS; The method further comprises: Before performing a stool detection, the stool detection sensor (21) detects an initial gas concentration S0 of the diaper (10); The step S110 includes: During the stool detection process, the stool detection sensor (21) detects the current gas concentration St of the diaper (10); Calculating the current gas concentration change value ΔS, where the current gas concentration change value ΔS is the difference between the current gas concentration St and the initial gas concentration S0; The step S130 includes: It is determined whether the current gas concentration change value ΔS exceeds the current stool-related gas concentration threshold R. If so, it is determined that stool exists in the diaper (10); otherwise, it is determined that stool does not exist in the diaper (10).

11. The method for improving the success rate of stool detection when urine is present in a diaper according to any one of claims 1 to 8, characterized in that: The current stool-related gas concentration data Y includes the current gas concentration change rate K; The step S110 includes: During the stool detection process, the stool detection sensor (21) performs gas concentration detection at a set time interval Δt to obtain a first gas concentration S1 and a second gas concentration S2; Calculate the current gas concentration change rate K, the current gas concentration change rate K=(second gas concentration S2-first gas concentration S1) / set time interval Δt; The step S130 includes: It is determined whether the current gas concentration change rate K exceeds the current stool-related gas concentration threshold R. If so, it is determined that stool exists in the diaper (10); otherwise, it is determined that stool does not exist in the diaper (10).

12. The method for improving the success rate of stool detection when urine is present in a diaper according to any one of claims 1 to 8, characterized in that: The detection device (20) further comprises an alarm unit (25); The step S130 further includes: If it is determined that feces exists in the diaper (10), the alarm unit (25) is controlled to sound an alarm.

13. A method for improving the success rate of stool detection when urine is present in a diaper, characterized in that: The diaper (10) comprises an absorption part (11) and a fixing part (12), wherein the absorption part (11) comprises a water-absorbing material, and the fixing part (12) is used to fix the absorption part (11) at the excretion opening of the diaper user; The diaper (10) is provided with a detection device (20), and the detection device (20) comprises a stool detection sensor (21) and a urine detection sensor (22): The method comprises: S210: detecting current stool-related gas concentration data Y of the diaper (10) through the stool detection sensor (21); S220: Determine the magnitude relationship between the current stool-related gas concentration data Y and a preset first threshold value X1 and a second threshold value X2; wherein the second threshold value X2 is smaller than the first threshold value X1; S230: If the current stool-related gas concentration data Y is greater than a first threshold value X1, it is determined that stool exists in the diaper (10); S240: If the current stool-related gas concentration data Y is not greater than the first threshold value X1 and greater than the second threshold value X2, the urine detection sensor (22) is used to detect whether there is urine in the diaper (10). If so, it is determined that there is stool in the diaper (10).

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