CN107796473B - Method and device for monitoring excretion data and toilet bowl - Google Patents
Method and device for monitoring excretion data and toilet bowl Download PDFInfo
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- CN107796473B CN107796473B CN201711100301.1A CN201711100301A CN107796473B CN 107796473 B CN107796473 B CN 107796473B CN 201711100301 A CN201711100301 A CN 201711100301A CN 107796473 B CN107796473 B CN 107796473B
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- 230000029142 excretion Effects 0.000 title claims abstract description 88
- 238000012544 monitoring process Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 257
- 230000008859 change Effects 0.000 claims description 38
- 210000003608 fece Anatomy 0.000 claims description 22
- 230000036541 health Effects 0.000 claims description 10
- 235000011837 pasties Nutrition 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 6
- 230000002550 fecal effect Effects 0.000 claims description 3
- 230000013872 defecation Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 235000013305 food Nutrition 0.000 description 4
- 206010012735 Diarrhoea Diseases 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- ZFRKQXVRDFCRJG-UHFFFAOYSA-N skatole Chemical compound C1=CC=C2C(C)=CNC2=C1 ZFRKQXVRDFCRJG-UHFFFAOYSA-N 0.000 description 2
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 206010010774 Constipation Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000012671 Gastrointestinal haemorrhages Diseases 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D9/00—Sanitary or other accessories for lavatories ; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
Abstract
The invention provides a method and a device for monitoring excretory data and a toilet, wherein the method comprises the steps of acquiring water level and water surface images of the toilet before excretion; acquiring the water level and water surface image of the toilet after excretion according to the ending of excretion; and obtaining the volume of excrement according to the water surface images and the water level of the toilet bowl before and after the excrement. The embodiment of the invention does not need to directly measure the volume of the excrement, and has the advantages of high feasibility and timely acquisition.
Description
Technical Field
The invention relates to the technical field of intelligent home, in particular to a method and a device for monitoring excretion data and a toilet.
Background
Daily human excreta is one of important health indexes in medicine, and carries important information such as health condition, whether digestion is normal or not and the like. At present, the following 4 standards are used for judging the health condition through the feces: traits, colors, odors, emissions and times and habits. Traits: the strip shape is soft and is not adhered. Healthy stool is mostly strip-shaped soft stool, is not adhered in a urinal, can float on the water surface, and can be cleaned after being flushed. Paste-like, non-dry and lumpy stool is also normal. When the protein content of the food is high, the stool is hard and similar to clay; when the carbohydrate is high, the stool becomes softer or pasty. Color: yellow or tan. Normal stool appears yellow or tan. Taking milk product, the stool is mostly light yellow; when eating more green vegetables, the stool will be greenish; the meat is more eaten, and the stool is brown yellow; when the pig blood and the pig liver are eaten or certain traditional Chinese medicines are taken, the stool turns black. Smell: with a slight odor. Because of the production of the skatole by bacterial decomposition, normal stool is slightly odorous, the smell of people who love meat can be heavy, and the taste of vegetarian people is light. If the odor is intolerable, there may be health problems. The pungent sour taste and burnt smell may be caused by dyspepsia; fishy smell may mean hemorrhage of digestive tract. Displacement volume: "one piece of feces" is about 100 grams. The healthy feces are mostly in the shape of banana strips, each strip is about 10-15 cm long, the weight of each strip is about 100 g, and each strip is arranged for 2-3 strips. The defecation amount can be changed according to the food amount, the food type and the like, for example, the defecation amount can be increased due to the fact that more dietary fiber is taken in. Number and habit: once daily, the defecation is optimal in the morning. The number and habit of defecation varies from person to person, and the person who has defecation in the morning is most often. Generally, the patient has no difficult defecation and other discomfort, constipation is not counted once in 1-3 days, and diarrhea is not counted more than 3 times a day. The observation of the stool can discover diseases early and can also know the health condition of people in time. Particularly some early cancers, can be observed from the color change of the stool, and timely found and treated earlier so as not to delay the illness.
Based on the above, it is necessary to develop a device for monitoring excretion-related parameters from various aspects.
Disclosure of Invention
The present invention provides a method, apparatus and toilet bowl for monitoring drainage data that overcomes or at least partially solves the above-mentioned problems.
According to one aspect of the present invention, there is provided a method of monitoring voiding data comprising:
acquiring a water level and water surface image of the toilet bowl before excretion;
acquiring the water level and water surface image of the toilet after excretion according to the ending of excretion;
and obtaining the volume of excrement according to the water surface images and the water level of the toilet bowl before and after the excrement.
Preferably, the method of monitoring voiding data further comprises:
and obtaining the quality of excrement according to the strain of the toilet bowl before and after the excrement.
Preferably, the method of monitoring voiding data further comprises
Based on the volume and mass of the faeces, the density of the faeces is obtained.
Preferably, the step of obtaining the volume of excrement from the water surface images and the water level of the pre-and post-evacuation toilets further comprises:
obtaining a water level change value according to the water levels of the toilet bowl before and after drainage; according to the number of pixel points representing water in the water surface images of the pre-drainage toilet and the post-drainage toilet and the size of the pixel points, the water surface areas of the pre-drainage toilet and the post-drainage toilet are obtained; and obtaining the volume of excrement by using a table body volume formula according to the water surface areas and the water level change values of the toilet bowl before and after the excrement.
Preferably, the step of obtaining the volume of excrement from the water surface images and the water level of the pre-excrement and the post-excrement toilets further comprises:
and adjusting the collection height of the water surface image of the toilet after the excretion according to the water level change value so as to ensure that the collection heights of the water surface image before and after the excretion are consistent.
Preferably, the step of obtaining the density of the faeces from the volume and mass of the faeces further comprises, after that:
and obtaining property information of the excrement according to the relation between the density of the excrement and a preset threshold, wherein the property information is one of dry and hard, soft and pasty.
Preferably, the step of determining that the excretion is ended specifically includes:
judging and knowing that the excretion is finished according to the fact that the bearing of the toilet is unchanged or a user leaves the toilet within a preset time.
According to another aspect of the present invention, there is also provided a method of utilizing faecal data, comprising:
obtaining faecal data according to the method of monitoring faecal data as described hereinbefore;
and sending the excrement data to the cloud or APP for analysis to make a corresponding health report.
According to another aspect of the present invention, there is also provided an apparatus for monitoring excretory data, comprising:
the water level acquisition module is used for acquiring the water levels of the toilet bowl before and after excretion;
the image acquisition module is used for acquiring water surface images of the toilet bowl before and after excretion;
and the volume monitoring module is used for acquiring the volume of excrement according to the water level and water surface images of the toilet bowl before and after excretion.
Preferably, the apparatus further comprises: and the quality monitoring module is used for obtaining the quality of excrement according to the strain of the toilet bowl before and after the excrement.
Preferably, the apparatus further comprises: and the density monitoring module is used for obtaining the density of the excrement according to the volume and the quality of the excrement.
Preferably, the apparatus further comprises:
and the character information obtaining module is used for obtaining character information of the excrement according to the relation between the density of the excrement and a preset threshold value, wherein the character information is one of dry and hard, soft and pasty.
Preferably, the apparatus further comprises:
and the sending module is used for sending the monitored excrement data to the cloud or APP for analysis to make a corresponding health report.
Preferably, the volume acquisition module further comprises:
the water surface area obtaining unit is used for obtaining the water surface areas of the pre-drainage toilet bowl and the post-drainage toilet bowl according to the number of pixel points and the size of the pixel points, which are used for representing water, in the water surface images of the pre-drainage toilet bowl and the post-drainage toilet bowl and obtained by the image obtaining module;
and the volume obtaining unit is used for obtaining the volume of excrement by utilizing a table body volume formula according to the water surface areas of the toilet bowl before and after the excrement and the water level obtained by the water level obtaining module.
According to another aspect of the present invention, there is also provided a toilet bowl for monitoring excretory data, comprising:
the water level sensor is used for collecting water level information of the toilet bowl;
the image collector is used for collecting the water surface image of the toilet; and
the device as described above is connected to the water level sensor and the image collector to obtain the volume of excrement.
Preferably, the toilet comprises a toilet seat and a toilet base connected by a rotating shaft, wherein the water level sensor and the image collector are arranged on the toilet seat near the rotating shaft.
Preferably, a plurality of supporting feet are uniformly arranged on the bottom surface of the toilet seat;
the toilet also comprises a pressure sensor arranged under at least one supporting foot, and the pressure sensor is used for collecting strain information of the toilet.
Preferably, the toilet further comprises:
and the height adjusting module is used for adjusting the height from the image collector to the water surface of the toilet according to the water levels of the toilet before and after excretion acquired by the water level acquiring module, so that the acquisition heights of the image collector before and after excretion are consistent.
The invention provides a method and a device for monitoring excretory data and a toilet, wherein the water surface area before and after excretion can be obtained through a graphic algorithm for acquiring the water surface images of the toilet before and after excretion, and the volume of the three-dimensional space, namely the volume of excretory can be obtained by substituting the acquired water level change value into a table volume formula. According to the technical scheme, the volume of the excrement is obtained without directly measuring the excrement, and the method has the advantages of high feasibility and timely acquisition. The mass of excrement is indirectly obtained by utilizing the strain of the toilet bowl before and after the excrement, the volume of the excrement is obtained by the water surface images and the water level of the toilet bowl before and after the excrement, and finally the density of the excrement is obtained, so that the aim of obtaining more abundant excrement data is fulfilled, and the effects of concise steps and rapid measurement are achieved. According to the water level change value, the collection height of the water surface image of the toilet after the excretion is collected is adjusted, so that the collection heights of the water surface image before and after the excretion is collected are consistent, and the problem that the area of the image collector for obtaining the water surface image is inaccurate due to the fact that the image collector does not change along with the water level change is solved.
Drawings
FIG. 1 is a flow chart of a method for monitoring voiding data according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for monitoring voiding data according to an embodiment of the present invention;
FIG. 3 is a functional block diagram of an apparatus for monitoring voiding data in accordance with an embodiment of the present invention;
FIG. 4 is a functional block diagram of a toilet bowl monitoring fecal data according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a toilet seat of a toilet bowl according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
To overcome the above-described drawbacks of the prior art, an embodiment of the present invention provides a method of monitoring fecal volume based on the toilet of the present invention, as shown in fig. 1, comprising:
101. acquiring a water level and water surface image of the toilet bowl before excretion;
102. acquiring the water level and water surface image of the toilet after excretion according to the ending of excretion;
103. and obtaining the volume of excrement according to the water surface images and the water level of the toilet bowl before and after the excrement.
When excrement falls into the toilet bowl, the water level will be changed necessarily, so the embodiment of the invention converts the measurement of the excrement volume into the measurement of the water level change, namely calculates the volume difference between the water area space of the toilet bowl after the excrement and the water area space of the toilet bowl before the excrement, and obviously, one height of the volume difference reaction is the water level change value, and the top surface and the bottom surface are the volumes of the three-dimensional spaces of the water surface before the excrement and the water surface after the excrement respectively. The embodiment of the invention acquires the water surface images of the toilet bowl before and after excretion, can acquire the water surface areas before and after excretion through a graphic algorithm, and then substitutes the acquired water level into a table body volume formula to acquire the volume of the three-dimensional space, namely the volume of excrement. The method for obtaining the volume of the excrement does not need to directly measure the excrement, and has the advantages of high feasibility and timely obtaining.
For the step of judging the end of the excretion, whether the excretion is completed or not may be judged by monitoring whether the change of the quality of the user on the toilet does not change within a preset time or the user leaves the toilet, for example, when the user excretes on the toilet, the weight is inevitably changed, so that the weight of the user is still unchanged when the time threshold is exceeded after the change, the end of the excretion is judged, and the actual threshold may be set to 20s, 30s, 40s or even longer.
On the basis of the above embodiments, the method according to the embodiment of the present invention further includes:
and obtaining the quality of excrement according to the strain of the toilet bowl before and after the excrement.
Because the user sits on the toilet seat and can generate pressure necessarily, the toilet seat can be strained after being stressed, and therefore, the weight before and after the user excretes can be obtained according to the strain of the toilet before and after the user excretes by establishing the linear relation between the strain of the toilet seat and the weight of the human body in advance, and obviously, the weight difference is the mass of the excretions.
Based on the volume and mass of the faeces, the density of the faeces is obtained.
The embodiment of the invention indirectly obtains the mass of the excrement by utilizing the strain of the toilet bowl before and after the excrement, obtains the volume of the excrement by utilizing the water surface images and the water level change values of the toilet bowl before and after the excrement, finally obtains the density of the excrement, realizes the purpose of obtaining more abundant excrement data, and has the effects of simple steps and rapid measurement.
Referring to fig. 2, a flow chart of a method for monitoring excrement data according to an embodiment of the present invention is shown, wherein the method for monitoring excrement density based on the toilet of the present invention includes: 201. and obtaining the volume of excrement according to the water surface images and the water level change values of the toilet bowl before and after the excrement. 202. And obtaining the quality of excrement according to the strain of the toilet bowl before and after the excrement. 203. Based on the volume and mass of the faeces, the density of the faeces is obtained.
Based on the above embodiments, step 201 further includes:
water surface images and water levels of the toilet bowl before and after excretion are obtained.
In practical application, the camera is arranged on the toilet seat of the toilet, so that the water surface images of the toilet before and after excretion can be obtained. In facing how to judge the time before and after excretion, various methods can be adopted, such as: when the toilet suddenly strains, the user is stated to be ready to use the toilet, the water surface of the toilet is shot, the water surface image of the toilet before excretion is obtained, and when the toilet sends strain again, the water surface image of the toilet after excretion can be obtained by shooting the water surface of the toilet. Of course, because a part of users have the condition of multiple times of excretion in one-time pick-up process, the water surface image can be collected again after the toilet bowl transmits strain for a certain time, so that the collection times are reduced.
For the water level, the monitoring means can be roughly divided into two types: a liquid level meter which is in contact with water is adopted, and the water level before and after excretion is measured by the liquid level meter, but the method is not attractive and is easy to be polluted by excrement; the second type adopts a liquid level meter which is not contacted with water, and the sensor is arranged on the toilet seat, and transmits specific waves (such as ultrasonic waves) to the water surface, so that the distance between the sensor and the water surface is obtained according to the time length of receiving the reflected waves, and the water level change before and after excretion is obtained.
And acquiring the water surface areas of the toilet bowl before and after the excretion according to the number of pixel points representing water and the size of the pixel points in the water surface images of the toilet bowl before and after the excretion.
Specifically, the obtained image is filtered and analyzed, the number of pixels which are not white (the white pixels represent the color of the toilet bowl) is calculated, the number of pixels representing water and the size of the pixels are counted as the pixels representing water, the water surface area can be obtained, for example, the number of pixels of the water surface image before defecation is N, the size of each pixel is M, the water surface area is MN。
It should be noted that, for the same image collector, the size of each pixel point in the collected image will not change, and the size of each pixel point can be obtained from the preset parameters of the image collector, so the water surface area of the toilet bowl before and after excretion can be obtained by multiplying the number of the pixel points representing water by the size of the pixel point.
For the pixel points representing water in the water surface image, a person skilled in the art can intuitively distinguish the water in the water surface image from the inner wall of the toilet bowl through the existing image recognition method, and the embodiment of the invention is not repeated.
And obtaining the volume of excrement by using a table body volume formula according to the water surface areas and the water level change values of the toilet bowl before and after the excrement.
Specifically, the calculation formula of the excrement volume is:
wherein V represents the volume of excrement, S 1 Represents the area of the water surface before excretion S 2 Represents the area of the water surface after excretion, h 0 Indicating water levelAnd (5) changing the value.
It should be noted that, since excrement will cause the water surface to rise after falling into the toilet, if the height of the image collector is not adjusted, the distance between the image collector and the water surface becomes closer, which results in a larger area of water represented by one pixel than before, and the obtained area of the water surface image has an inaccurate problem.
In order to solve the problem that the area of the image acquisition device for acquiring the water surface image is inaccurate due to the fact that the image acquisition device does not change along with the change of the water level, the method for monitoring the excretion data provided by the embodiment of the invention further comprises the following steps: and adjusting the collection height of the water surface image of the toilet after the excretion according to the water level change value so as to ensure that the collection heights of the water surface image before and after the excretion are consistent.
That is, in order to obtain the volume of excrement, it is necessary to collect the water surface image and the water level of the toilet bowl before and after the excrement, to continuously collect the water levels of the toilet bowl after the excrement, to obtain the water level variation value according to the water levels of the toilet bowl before and after the excrement, then to adjust the height of the image collector according to the water level variation value so that the height of the image collector after the excrement from the water surface is identical to the height of the image collector before the excrement from the water surface, to collect the water surface image of the toilet bowl, to obtain the water surface areas of the toilet bowl before and after the excrement by calculating the number of the pixels and the size of the pixels representing the water in the water surface image of the toilet bowl before and after the excrement, respectively, and finally to obtain the volume of excrement according to the water surface image and the water level variation value of the toilet bowl before and after the excrement.
For the user of the toilet bowl, only obtaining the density of the excrement does not intuitively know whether the form of the excrement is normal or abnormal, so on the basis of the above embodiments, the method for monitoring the excrement data according to the embodiments of the present invention further includes:
and obtaining property information of the excrement according to the relation between the density of the excrement and a preset threshold, wherein the property information is one of dry and hard, soft and pasty.
In practical application, the preset threshold value can be set to be multiple so as to more finely classify the characteristics of the excrementIn one embodiment, the preset threshold is set to the density of waterρ=1×10 3 kg/m 3 For reference, if the density of the excrement is less than 0.6ρThe shape of the excrement is known to be pasty, and if the density of the excrement is greater thanρThe property of the excrement is known to be dry and hard, and if the density of the excrement is 0.6ρTo the point ofρIn the meantime, it is known that the excrement is thin and soft.
Based on the above embodiments, the present invention further provides a method for utilizing excrement data, after acquiring the volume, quality, density and character information of excrement, uploading the information to the cloud or APP for analysis to make a corresponding health data report, so as to facilitate long-term data recording and better evaluate and analyze health status.
Table 1 shows the faecal data of a user of a toilet bowl according to the above embodiment, and it is clear from table 1 that the user has a relatively stable quality of faeces during 15 to 17 days of 10 months, but has a lower and lower density, and has a pasty faeces during two days of 18 and 19, which is most likely that the user of the toilet bowl has eaten dirty food to cause diarrhea.
Table 1 faeces data sheet
According to another aspect of the present invention, there is also provided an apparatus for monitoring excretory data, see fig. 3, for monitoring excretory data of a user in the foregoing embodiments. Thus, the descriptions and definitions in the methods of monitoring voided data of the foregoing embodiments may be used for understanding the various execution modules in embodiments of the present invention.
As shown in fig. 3, the apparatus includes:
the image acquisition module 301 is used for acquiring water surface images of the toilet bowl before and after excretion.
The water level acquisition module 302 is used for acquiring the water level change values of the toilet bowl before and after the water level is discharged.
And the volume monitoring module 303 is used for obtaining the volume of excrement according to the water surface images of the pre-excrement toilet and the post-excrement toilet acquired by the image acquisition module 301 and the water level change value acquired by the water level acquisition module 302.
When the excrement falls into the toilet bowl, the water level will be changed necessarily, so the volume monitoring module 303 of the embodiment of the present invention converts the measurement of the excrement volume into the measurement of the water level change, that is, calculates the volume difference between the water area space of the toilet bowl after the excrement and the water area space of the toilet bowl before the excrement, and obviously, one height of the volume difference reaction is the water level change value, and the volumes of the three-dimensional spaces of the water surface before the excrement and the water surface after the excrement are respectively. The embodiment of the invention acquires the water surface images of the toilet bowl before and after excretion, can acquire the water surface areas before and after excretion through a graphic algorithm, and substitutes the acquired water level change value into a table volume formula to acquire the volume of the three-dimensional space, namely the volume of excrement. The method for obtaining the volume of the excrement does not need to directly measure the excrement, and has the advantages of high feasibility and timely obtaining.
On the basis of the above embodiments, the device further includes:
and the quality monitoring module is used for obtaining the quality of excrement according to the strain information of the toilet bowl before and after the excrement.
Because the user sits on the toilet seat and can generate pressure necessarily, the toilet seat can be strained after being stressed, therefore, the quality monitoring module can obtain the weight of the user before and after excretion according to the strain of the toilet before and after excretion by establishing the linear relation between the strain of the toilet seat and the weight of the human body in advance, and obviously, the weight difference is the mass of the excrement.
On the basis of the above embodiments, the device further includes:
and the density monitoring module is used for obtaining the density of the excrement according to the mass of the excrement obtained by the quality monitoring module and the volume of the excrement obtained by the volume monitoring module.
The device of the embodiment of the invention indirectly obtains the quality of excrement by utilizing the strain of the toilet bowl before and after excretion, obtains the volume of excrement by the water surface images and the water level change values of the toilet bowl before and after excretion, finally obtains the density of the excrement, realizes the purpose of obtaining more abundant excretory data, and has the effects of simple steps and rapid measurement.
On the basis of the above embodiment, the volume monitoring module further includes:
the water surface area obtaining unit is used for obtaining the water surface areas of the toilet bowl before and after excretion according to the number of pixel points and the size of the pixel points representing water in the water surface images of the toilet bowl before and after excretion, which are acquired by the image acquisition module.
It should be noted that, for the same image collector, the size of each pixel point in the collected image will not change, and the size of each pixel point can be obtained from the preset parameters of the image collector, so the water surface area of the toilet bowl before and after excretion can be obtained by multiplying the number of the pixel points representing water by the size of the pixel point. For the pixel points representing water in the water surface image, a person skilled in the art can intuitively distinguish the water in the water surface image from the inner wall of the toilet bowl through the existing image recognition method, and the embodiment of the invention is not repeated.
And the volume obtaining unit is used for obtaining the volume of excrement by utilizing a table body volume formula according to the water surface areas of the toilet bowl before and after the excrement and the water level change value acquired by the water level sensor.
Specifically, the formula of the volume obtaining unit calculating the excrement volume is:
wherein V represents the volume of excrement, S 1 Represents the area of the water surface before excretion S 2 Represents the area of the water surface after excretion, h 0 Indicating the level change value.
It should be noted that, since excrement will cause the water surface to rise after falling into the toilet, if the height of the image collector is not adjusted, the distance between the image collector and the water surface becomes short, and the area of the water represented by one pixel is larger than the previous area, so that the obtained area of the water surface image has an inaccurate problem.
For the user of the toilet bowl, just obtaining the density of the excrement does not intuitively know whether the form of the excrement is normal or abnormal, and therefore, on the basis of the above embodiments, the device of the embodiment of the present invention further includes:
and the character information obtaining module is used for obtaining character information of the excrement according to the relation between the density of the excrement and a preset threshold value, wherein the character information is one of dry and hard, soft and pasty.
In practice, the predetermined threshold may be set to a plurality of values for more finely classifying the characteristics of the waste, in one embodiment, the predetermined threshold is set to a water densityρ=1×10 3 kg/m 3 For reference, if the density of the excrement is less than 0.6ρThe shape of the excrement is known to be pasty, and if the density of the excrement is greater thanρThe property of the excrement is known to be dry and hard, and if the density of the excrement is 0.6ρTo the point ofρIn the meantime, it is known that the excrement is thin and soft.
Based on the above embodiments, the device for monitoring excreta data in this embodiment further includes a sending module, configured to send the excreta data obtained by monitoring to a cloud or APP for analysis to make a corresponding health report.
According to another aspect of the present invention, there is also provided a toilet bowl for detecting excreta data, referring to fig. 4, including the apparatus 401, the water level sensor 402 and the image sensor 403 described in the above embodiments, the water level sensor 403 is configured to collect water level information of the toilet bowl and transmit the collected water level information to the water level acquisition module 4011 in the apparatus, the water level acquisition module 4011 acquires water levels of the toilet bowl before and after excretion based on the collected water level information, the image sensor 403 is configured to collect water level images in the toilet bowl, the image acquisition module 4012 acquires water level images in the toilet bowl before and after excretion based on the collected image information, and the physical examination monitoring module 4013 acquires a volume of excreta based on the water level images of the toilet bowl before and after excretion acquired by the image acquisition module and the water level variation value acquired by the water level acquisition module.
On the basis of the embodiment, the toilet bowl of the embodiment of the invention comprises a toilet seat and a toilet seat which are connected through a rotating shaft, and the water level sensor and the image collector are arranged on the toilet seat close to the rotating shaft. The arrangement is that the rotating shaft is not easy to contact, and after the toilet seat is buckled on the toilet base, the rotating shaft is provided with a wider installation area, so that the water level sensor and the image collector are convenient to install.
On the basis of the above embodiments, the bottom surface of the toilet seat is uniformly provided with a plurality of supporting feet;
the toilet also comprises a pressure sensor arranged under at least one supporting foot, and the pressure sensor is used for collecting strain information of the toilet. The pressure sensor sends the acquired strain information of the toilet bowl to a quality monitoring module in the device, so that the quality monitoring module obtains the quality of excrement according to the strain of the toilet bowl before and after the excrement.
In order to solve the problem that the area of the image collector for obtaining the water surface image is inaccurate due to the fact that the image collector does not change along with the change of the water level, the toilet bowl provided by the embodiment of the invention further comprises:
the height adjusting module is used for adjusting the water surface heights of the image collector and the toilet according to the water level change values of the toilet before and after excretion collected by the water level sensor, so that the collection heights of the image collector before and after excretion are consistent.
That is, in order to obtain the volume of excrement, it is first required to acquire the water surface image and the water level of the toilet before excretion by the image acquisition module and the water level acquisition module, respectively, after excretion by the toilet user, the water level acquisition module continues to urgently fill the water level of the toilet, and obtains the water level variation value according to the water levels of the toilet before excretion and after excretion, then the height adjustment module adjusts the height of the image acquisition device according to the water level variation value, so that the height of the image acquisition device after excretion by the toilet user from the water surface is consistent with the height of the image acquisition device before excretion from the water surface, and then the image acquisition device continues to acquire the water surface image of the toilet and sends the acquired water surface image to the water surface area acquisition unit, which acquires the water surface area of the toilet before excretion and after excretion by calculating the number of pixels representing water in the water surface images of the toilet before excretion and the pixel size, respectively, and finally the volume acquisition unit acquires the volume of excrement according to the water surface image and the water level variation value of the toilet before excretion and after excretion.
On the basis of the embodiment, the pressure sensor is a resistance strain gauge. It should be noted that most of the pressure sensors in the prior art are expensive FX1901 sensors, which are 280 yuan expensive and not easy to popularize, so that the inexpensive resistance strain gauge is adopted in the embodiment.
The resistance strain gauge is an element for measuring strain. It converts the change in strain on a mechanical member into a change in resistance. The resistance strain gauge is made of constantan wire or nichrome wire with phi=0.02-0.05 mm wound into a grid shape (or corroded into a grid shape by a very thin metal foil) and sandwiched in two layers of insulating sheets (substrates). Silver-plated copper wires are connected with the strain gage wire grids to serve as resistor leads. When the resistance strain gauge is pressed, a voltage signal which is linearly related to weight is generated, and the processor performs AD sampling and digital filtering on the signal and then converts the signal into a corresponding weight value.
Referring to fig. 5, fig. 5 shows a top view of a toilet seat of the toilet bowl according to the embodiment of the present invention, the toilet seat 7 is connected with a toilet base (not shown) through a rotating shaft 5, four supporting feet are uniformly provided on the toilet seat 7, namely, a supporting foot 1, a supporting foot 2, a supporting foot 3 and a supporting foot 4, a pressure sensor is provided on the bottom surface of each supporting foot, a water level sensor 6 and an image collector 8 are provided on the bottom surface of the toilet seat 7 in parallel near the rotating shaft, and it is obvious that the water level sensor in the present embodiment is of a type not contacting with water, and in the present embodiment, the water level sensor is an ultrasonic sensor.
The number of the pressure sensors may be smaller than the number of the supporting legs on the basis of the above embodiment, for example, one pressure sensor may be provided on each of the bottom surfaces of the supporting legs 1 and 2, or one pressure sensor may be provided only on the bottom surface of the supporting leg 3. The water level sensor and the image pickup are not necessarily arranged side by side, but may be arranged opposite to each other, for example, the water level sensor is arranged between 1 and 3 of the toilet seat and the image pickup is arranged between 2 and 4 of the toilet seat.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of monitoring voiding data, comprising:
acquiring a water level and water surface image of the toilet bowl before excretion;
acquiring the water level and water surface image of the toilet after excretion according to the ending of excretion;
acquiring the volume of excrement according to the water surface images and the water level of the toilet bowl before and after the excrement;
according to the strain of the toilet bowl before and after excretion, the quality of the excrement is obtained;
obtaining the density of the excrement according to the volume and the quality of the excrement;
the step of obtaining the volume of excrement according to the water surface images and the water level of the toilet bowl before and after excrement, further comprises the following steps:
obtaining a water level change value according to the water levels of the toilet bowl before and after drainage;
according to the water level change value, adjusting the collection height of the water surface image of the toilet after the excretion so as to enable the collection heights of the water surface image before and after the excretion to be consistent;
according to the number of pixel points representing water in the water surface images of the pre-drainage toilet and the post-drainage toilet and the size of the pixel points, the water surface areas of the pre-drainage toilet and the post-drainage toilet are obtained;
and obtaining the volume of excrement by using a table body volume formula according to the water surface areas and the water level change values of the toilet bowl before and after the excrement.
2. The method of monitoring fecal data according to claim 1, wherein the step of obtaining a density of fecal matter based on the volume and mass of fecal matter, further comprises thereafter:
and obtaining property information of the excrement according to the relation between the density of the excrement and a preset threshold, wherein the property information is one of dry and hard, soft and pasty.
3. The method of monitoring voiding data of claim 1, wherein the step of determining the end of voiding specifically comprises:
judging and knowing that the excretion is finished according to the fact that the bearing of the toilet is unchanged or a user leaves the toilet within a preset time.
4. A method for utilizing excreted data, comprising:
obtaining faecal data according to the method of monitoring faecal data according to any of claims 1-3;
and sending the excrement data to the cloud or APP for analysis to make a corresponding health report.
5. An apparatus for monitoring voiding data, comprising:
the water level acquisition module is used for acquiring the water levels of the toilet bowl before and after excretion;
the image acquisition module is used for acquiring water surface images of the toilet bowl before and after excretion;
the volume monitoring module is used for obtaining the volume of excrement according to the water level and water surface images of the toilet bowl before and after excretion;
the water surface area obtaining unit is used for obtaining the water surface areas of the pre-drainage toilet bowl and the post-drainage toilet bowl according to the number of pixel points and the size of the pixel points, which are used for representing water, in the water surface images of the pre-drainage toilet bowl and the post-drainage toilet bowl and obtained by the image obtaining module;
the volume obtaining unit is used for obtaining the volume of excrement by utilizing a table body volume formula according to the water surface areas of the toilet bowl before and after the excrement and the water level obtained by the water level obtaining module;
the quality monitoring module is used for obtaining the quality of excrement according to the strain of the toilet bowl before and after the excrement;
a density monitoring module for obtaining the density of the excrement according to the volume and the quality of the excrement;
and the height adjusting module is used for adjusting the height from the image collector to the water surface of the toilet according to the water levels of the toilet before and after excretion acquired by the water level acquiring module so that the acquisition heights of the image collector on the water surface before and after excretion are consistent.
6. The apparatus as recited in claim 5, further comprising:
and the character information obtaining module is used for obtaining character information of the excrement according to the relation between the density of the excrement and a preset threshold value, wherein the character information is one of dry and hard, soft and pasty.
7. The apparatus of any one of claims 5-6, further comprising:
and the sending module is used for sending the monitored excrement data to the cloud or APP for analysis to make a corresponding health report.
8. A toilet for monitoring fecal data, comprising:
the water level sensor is used for collecting water level information of the toilet bowl;
the image collector is used for collecting the water surface image of the toilet; and
the device according to any one of claims 5-7, connected to the water level sensor and the image collector to obtain a volume of faeces.
9. The toilet of claim 8, comprising a toilet seat and a toilet base connected by a rotating shaft, wherein the water level sensor and the image capture device are both disposed on the toilet seat proximate the rotating shaft.
10. The toilet according to claim 9, wherein a plurality of support legs are uniformly provided on a bottom surface of the toilet seat;
the toilet also comprises a pressure sensor arranged under at least one supporting foot, and the pressure sensor is used for collecting strain information of the toilet.
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| CN109031976A (en) * | 2018-09-19 | 2018-12-18 | 珠海格力电器股份有限公司 | A kind of smart home system |
| CN109212992A (en) * | 2018-10-18 | 2019-01-15 | 珠海格力电器股份有限公司 | A kind of intelligent home furnishing control method and intelligent closestool based on intelligent closestool |
| DK3659433T3 (en) * | 2018-11-30 | 2021-04-19 | Phytobiotics Futterzusatzstoffe Gmbh | SYSTEM FOR ANALYSIS OF IMAGES OF ANIMAL FECE |
| US11540760B1 (en) * | 2019-05-03 | 2023-01-03 | Enceinte Health, Inc. | Retrofittable and portable commode and systems for detecting, tracking, and alerting health changes |
| JPWO2022163053A1 (en) * | 2021-01-26 | 2022-08-04 |
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